The present disclosure relates to the field of display technologies, and in particular, relates to a display panel, a method for display control therefor, and a display device.
Low temperature polycrystalline oxide (LTPO) display products can achieve low frequency display to reduce display power consumption, which are receiving increasing attention from the market.
A display panel, a method for display control therefor, and a display device are provided. The technical solutions are as follows.
In an aspect, a display panel is provided. The display panel includes:
Optionally, the plurality of first drive units are disposed on a first side of the both sides, and the plurality of second drive units are disposed on a second side of the both sides.
Optionally, among the plurality of first drive units, one part of the first drive units are disposed on a first side of the both sides, and a rest of the first drive units other than the one part of the first drive units are disposed on a second side of the both sides; and
Optionally, each of the first drive units is coupled with one part of pixels in a row of pixels by a corresponding first gating unit; and
Optionally, each of the second drive units is coupled with another part of the pixels in a row of pixels by a corresponding second gating unit; and
Optionally, the individual first and second drive units disposed on the first side are alternately arranged in a pixel column direction in sequence; and
Optionally, each of the first drive units is coupled with a first drive line by a corresponding first gating unit, and the first drive line is coupled with the one part of the pixels; each of the second drive units is coupled with a second drive line by a corresponding second gating unit, and the second drive line is coupled with another part of the pixels; and the plurality of first drive units are cascaded by the first drive line, and the plurality of second drive units are cascaded by the second drive line.
Optionally, in a case that the plurality of first drive units are disposed on the first side of the both sides and the plurality of second drive units are disposed on the second side of the both sides, the first drive line and the second drive line are independent from each other.
Optionally, in a case that among the plurality of first drive units, one part of the first drive units are disposed on a first side of the both sides, and a rest of the first drive units other than the one part of the first drive units are disposed on the second side of the both sides; and among the plurality of second drive units, one part of the second drive units are disposed on the first side of the both sides, and a rest of the second drive units other than the one part of the second drive units are disposed on the second side of the both sides:
Optionally, one part of the first drive line for coupling pixels and one part of the first drive line for cascading the first drive units are disposed on different layers; one part of the second drive line for coupling pixels and one part of the second drive line for cascading the second drive units are disposed on different layers; and overlapped parts of the first and second drive lines are disposed on different layers.
Optionally, each of the pixels includes: a gate metal layer, an insulation layer, and a source-drain metal layer, which are sequentially stacked on one side of the substrate,
Optionally, the substrate includes:
Optionally, a frame rate of the upper display region is greater than or equal to a frame rate of the lower display region.
Optionally, the left display region and the right display region have a same area and include a same number of pixels; and/or, the upper display region and the lower display region have a same area and include a same number of pixels.
Optionally, among the plurality of first gating units and the plurality of second gating units, individual gating units disposed on a same side of the substrate share a same enable line.
Optionally, each of the first gating units includes: a first gating switch tube; and each of the second gating units includes: a second gating switch tube;
wherein a gate of the first gating switch tube is coupled with the first enable line, a first electrode of the first gating switch tube is coupled with a corresponding first drive unit, and a second electrode of the first gating switch tube is coupled with the one part of the pixels; and
Optionally, each of the first drive units is coupled, by the corresponding first gating unit, with one part of the pixels in the at least one row of pixels adjacent to the first gating unit; each of the second drive units is coupled, by the corresponding second gating unit, with the another part of the pixels in the at least one row of pixels adjacent to the second gating unit; and individual pixels in the one part of the pixels are adjacent to each other, and individual pixels in the another part of the pixels are adjacent to each other.
Optionally, the display panel includes: a low temperature polycrystalline oxide (LTPO) display panel.
In another aspect, a method for display control for controlling the display panel as defined in the above aspect is provided. The method includes:
In still another aspect, a display device is provided. The display device includes: a driver chip, and the display panel as defined in the above aspect,
To describe the technical solutions in embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
For clearer descriptions of the objects, technical solutions, and advantages of the present disclosure, the embodiments of the present disclosure are described in detail below in combination with the accompanying drawings.
In the related art, an LTPO display product generally includes a substrate, a plurality of rows of pixels disposed on the substrate (with each row including a plurality of columns of pixels), and a gate driver on array (GOA) circuit driving the plurality of pixels to emit light. The GOA circuit includes a plurality of GOA units cascaded, which are coupled with the plurality of rows of pixels on the substrate in one-to-one correspondence by a plurality of grid lines, and are configured to transmit gate driving signals to the plurality of rows of pixels row by row to achieve progressive scan and refresh, thereby lighting up the plurality of rows of pixels row by row.
However, due to the coupling and layout of the GOA circuit to the pixels, only full-screen refresh (that is, the frame rate is the same in different regions of the full screen) can be performed at present, and it is impossible to achieve split-screen refresh for different regions, such that the refresh flexibility is poor, resulting in higher power consumption of the display product.
It should be noted that the transistor used in all the embodiments of the present disclosure may be a thin-film transistor, or a field-effect transistor or an additional device having the same characteristics. The transistor used in the embodiments of the present disclosure is mainly a switch transistor according to its functions in a circuit. A source and a drain in the switch transistor used herein are symmetrical, and thus are interchangeable. In some embodiments of the present disclosure, the source is referred to as a first electrode, and the drain is referred to as a second electrode. According to the forms in the accompanying drawings, an intermediate electrode of the transistor is defined as a control electrode, also called a gate, a signal input terminal is defined as a source, and a signal output terminal is defined as a drain. In addition, the switch transistor used in the embodiments of the present disclosure may include either a P-type switch transistor or an N-type switch transistor. The P-type switch transistor is turned on when the gate is at a low level and turned off when the gate is at a high level; and the N-type switch transistor is turned on when the gate is at a high level, and is turned off when the gate is at a low level. In addition, a plurality of signals in the respective embodiments of the present disclosure each have a first potential and a second potential, correspondingly. The first potential and the second potential only represent two quantities of state of the potential of the signal, rather than representing a specific value for the first or second potential in the present disclosure.
As consumers pursue ultimate power consumption of display products, a low temperature polycrystalline oxide (LTPO) display panel has been designed. Due to the particularity of its material, an LTPO display panel can achieve low-frequency display at a minimum of 1 hertz (Hz) to reduce power consumption, thereby meeting the needs of users for low power consumption. In addition, it is not limited to this, and now, many manufacturers have further proposed the design of partial update on the basis of low-frequency display. Here, the partial update means that a display region of a display panel is divided into a plurality of regions, for which different frame rates can be set respectively. In this way, a locally refreshed region can be updated, and a region without the need of local refresh can be maintained, thereby implementing more intelligent refresh to further reduce power consumption. However, the existing design of the partial update can only control the minimum refresh region to a whole row. That is, it is only possible to divide a display region into a plurality of regions in pixel rows, with each region including at least one row of pixels, and the upper and lower regions each including at least one row of pixels are refreshed by region.
On this basis, to further reduce a region to be refreshed to save more power and achieve intelligence, the embodiments of the present disclosure provide a partial update design to allow both up and down partitioning as well as left and right partitioning (i.e., dividing a region in terms of pixel columns as a unit).
The display panel further includes a plurality of pixels 02 arranged in an array. The plurality of pixels 02 are disposed in the display region A1. The arrangement in an array may refer to the arrangement of the plurality of pixels 02 according to a pixel row direction X1 and a pixel column direction Y1 as shown in
The display panel further includes a first drive circuit 03. The first drive circuit 03 is disposed in the peripheral region B1, and the first drive circuit 03 includes: a plurality of first drive units 031 cascaded, and a plurality of first gating units 032 in one-to-one correspondence with the plurality of first drive units 031.
The display panel further includes a second drive circuit 04 disposed in the peripheral region B1. The second drive circuit 04 may include: a plurality of second drive units 041 cascaded, and a plurality of second gating units 042 in one-to-one correspondence with the plurality of second drive units 041.
It should be noted that, taking the first drive circuit 03 as an example, referring to
Based on the above coupling, still referring to
Each of the first drive units 031 is coupled with one part of pixels 02 in at least one row of pixels 02 by a corresponding first gating unit 032. Each of the first gating units 032 is also coupled with a first enable line GE1, and is configured to control on-off between the first drive units 031 and the one part of the pixels 02 based on a first enable signal provided by the first enable line GE1. The plurality of first drive units 031 are also coupled with a first turn-on line STV1, and are configured to output first gate driving signals based on a first turn-on signal provided by the first turn-on line STV1.
For example, each of the first drive units 031 shown in
Optionally, in the embodiments of the present disclosure, the first potential may be a valid potential, the second potential may be an invalid potential, and the first potential may be a high potential with respect to the second potential. In addition, in other embodiments, the first potential may also be a low potential with respect to the second potential.
Each of the second drive units 041 is coupled with another part of the pixels 02 in the at least one row of pixels 02 by a corresponding second gating unit 042. Each of the second gating units 042 is also coupled with a second enable line GE2, and is configured to control on-off between the second drive units 041 and the one part of the pixels 02 based on a second enable signal provided by the second enable line GE2. The plurality of second drive units 041 are also coupled with a second turn-on line STV2, and are configured to output second gate driving signals based on a second turn-on signal provided by the second turn-on line STV2.
For example, each of the second drive units 041 shown in
That is, in the display panel described in the embodiments of the present disclosure, for each row of pixels 02, one part (which may be one or more) of the pixels 02 may be coupled with the corresponding one of the first drive units 031 by one of the first gating units 032; and the other part of the pixels 02 other than the one part of the pixels 02 may be coupled with the corresponding one of the second drive units 041 by one of the second gating units 042. In other words, the plurality of pixels 02 disposed in the same row may be divided into two parts in the pixel row direction X1, and the two parts may be coupled to different drive units, respectively, to receive different gate driving signals. Furthermore, the first gating units 032 may control the on-off between the first drive units 031 and the one part of the pixels 02 in the row of pixels 02 based on the received first enable signal; and the second gating units 042 may control the on-off between the second drive units 041 and the other part of the pixels 02 in the row of pixels 02 based on the received second enable signal. In other words, the first gating units 032 and the second gating units 042 may control the on-off between the corresponding drive units and the pixels 02 based on the different enable signals provided by the different enable lines. Moreover, the first drive units 031 may output first gate driving signals based on the received first turn-on signal; and the second drive units 041 may output second gate driving signals based on the received second turn-on signal. In other words, the first drive units 031 and the second drive units 041 may output the gate driving signals based on the different turn-on signals provided by the different turn-on lines. In this way, the flexible and intelligent refresh of the pixels 02 in different regions (the upper, lower, left and right regions) of the display region A1 can be achieved by flexibly setting the turn-on signals and the enable signals, and different frame rates may be provided to the refresh of different regions, thereby achieving the purpose of frequency division design and saving more power. In addition, the arrangement of the first drive units 031 and the second drive units 041 on the left and right sides of the display region A1 respectively may also facilitate a narrow bezel design of a display device, which can then lay the foundation for a full-screen design.
It should be noted that, because the first drive units 031 and the second drive units 041 are both configured to output the gate driving signals, the first drive units 031 and the second drive units 041 in the embodiments of the present disclosure may also be referred to as the GOA units described in the above embodiments, and correspondingly, the first drive circuit 03 including the first drive units 031 and the second drive circuit 04 including the second drive units 041 may be called GOA circuits.
In summary, the embodiments of the present disclosure provide a display panel. The display panel includes a substrate having a display region and a peripheral region, a plurality of pixels disposed in the display region, and a first drive circuit and a second drive circuit that are disposed in the peripheral region. The first drive circuit includes a plurality of first drive units and a plurality of first gating units, in one-to-one correspondence. The second drive circuit includes a plurality of second drive units and a plurality of second gating units, in one-to-one correspondence. The plurality of first drive units are cascaded, are coupled with a first turn-on line, and are also coupled with one part of pixels in a row of pixels by a corresponding first gating unit. The plurality of second drive units are cascaded, are coupled with a second turn-on line, and are also coupled with another part of the pixels in the row of pixels by a corresponding second gating unit. The first gating units are also coupled with a first enable line. The second gating units are also coupled with a second enable line. The plurality of first drive units may output first gate driving signals based on a first turn-on signal provided by a first turn-on line. The plurality of second drive units may output second gate driving signals based on a second turn-on signal provided by a second turn-on line. The first gating units may control on-off between the corresponding first drive units and one part of pixels based on a first enable signal provided by the first enable line. The second gating units may control on-off between the corresponding second drive units and the other part of pixels based on a second enable signal provided by the second enable line. In this way, the pixels in different regions (the upper, lower, left, or right region) of the display region can be flexibly refreshed by flexibly setting the enable signals and the turn-on signals, and the frame rates for different regions can be different, such that partial update can be achieved, thereby reducing power consumption to achieve the purpose of intelligence and power saving.
Optionally, still referring to
Optionally, still referring to
Optionally, in an optional embodiment:
Optionally, referring to
However, the optional implementation shown in
Optionally, in another optional embodiment:
With respect to an optional implementation shown in
Optionally, still referring to
Optionally, still referring to
That is, the individual first drive units 031 coupled with the odd-numbered rows of pixels 02 and the individual first drive units 031 coupled with the even-numbered rows of pixels 02 may be alternately arranged on the left and right sides of the pixel row direction X1. Moreover, the individual second drive units 041 coupled with the odd-numbered rows of pixels 02 and the individual second drive units 041 coupled with the even-numbered rows of pixels 02 may be alternately arranged on both sides of the row direction. Furthermore, the individual first drive units 031 coupled with the odd-numbered rows of pixels 02 and the individual second drive units 041 coupled with the even-numbered rows of pixels 02 may be disposed on the same side (for example, left side); and the individual first drive units 031 coupled with the even-numbered rows of pixels 02 and the individual second drive units 041 coupled with the odd-numbered rows of pixels 02 may be disposed on the same side (for example, right side).
Correspondingly, on this basis, still referring to
In other embodiments, by taking the plurality of adjacent rows of pixels 02 as a group, the individual first drive units 031 coupled with the same group may be arranged on the same side, and the individual first drive units 031 coupled with the adjacent groups may be arranged on the left and right sides, respectively. The layout of the second drive unit 041 is in a similar way. In other words, it is not limited to the layout shown in
Optionally, referring to
Optionally, taking the first drive units 031 identified as GOA1s, the first gating units 032 identified as MS1s, the second drive units 041 identified as GOA2s, and the second gating units 042 identified as MS2s as an example,
Referring to
Moreover, in an optional embodiment:
In another optional embodiment:
Optionally, one part G11 of the first drive line G1 for coupling the pixels 02 and one part G12 of the first drive line G1 for cascading the first drive units 031 may be disposed on different layers. One part G21 of the second drive line G2 for coupling the pixels 02 and one part G22 of the second drive line G2 for cascading the second drive units 041 may be disposed on different layers. Moreover, the overlapped parts of the first and second drive lines G1 and G2 (see an overlap region C1) may be disposed on different layers.
Optionally, first referring to
For example, the gate metal layer GATE, the insulation layer J1, and the source-drain metal layer SD shown in
In the overlapping region C1, the first drive line G1 and the second drive line G2 are overlapped, with one disposed on the same layer as the gate metal layer GATE, and the other possibly disposed on the same layer as the source-drain metal layer SD.
That is, based on the layout in
It should be noted that being on the same layer may refer to a layer structure in which a film layer for forming a specific pattern may be formed using the same film-forming process, and then, the film layer is patterned using the same mask plate by a one-time patterning process. Depending on the specific pattern, the one-time patterning process may include a plurality of expose, develop, or etch processes, and the specific pattern in the formed layer structure may be continuous or discontinuous. That is, a plurality of elements, components, structures, and/or sections disposed “on the same layer” are constructed of the same material and formed by the same one-time patterning process. In this way, the manufacturing processes and manufacturing costs can be reduced, and the manufacturing efficiency can be increased.
Optionally, still referring to
Optionally, still referring to
Optionally, still referring to
Moreover, as described in the above embodiments, still referring to
Optionally, based on the layout shown in
For example, in
In addition, in the left display region A1l and the right display region A12, the frame rate FR1 of the upper display region A11-1 and the frame rate FR2 of the upper display region A12-1 may be irrelevant in magnitude. The frame rate FR3 of the lower display region A1l-2 and the frame rate FR4 of the lower display region A12-2 may be irrelevant in magnitude.
Optionally, in the embodiments of the present disclosure, combined with
In addition, in other embodiments, the left and right frequency-division areas may also be different according to customers' needs. For example, the area of the left display region A1l may be ⅔ of the overall area of the display region A1; and correspondingly, the area of the right display region A12 may be ⅓ of the overall area of the display region A1. That is, ⅔ frequency division may be set on the left, and ⅓ frequency division may be set on the right. Moreover, the upper and lower frequency-division areas may also be different. In addition, the frame rates for the upper and lower frequency divisions may also be different. For example, the frame rate of the upper display region may be 120 Hz, and the frame rate of the lower display region may be 30 Hz.
Optionally,
A gate of the first gating switch tube MS-T1 may be coupled with the first enable line GE1, a first electrode of the first gating switch tube MS-T1 may be coupled with the corresponding first drive unit 031, and a second electrode of the first gating switch tube MS-T1 may be coupled with one part of pixels 02. The first gating switch tube MS-T1 may be configured to be turned on when the potential of the first enable signal provided by the first enable line GE1 is the first potential, such that the first drive unit 031 and the pixels 02 are connected, and then the first drive unit 031 transmits the first gate driving signal to the pixels 02. Moreover, the first gating switch tube MS-T1 may be configured to be turned off when the potential of the first enable signal provided by the first enable line GE1 is the second potential, such that the first drive unit 031 and the pixels 02 are uncoupled.
A gate of the second gating switch tube MS-T2 may be coupled with the second enable line GE2, a first electrode of the second gating switch tube MS-T2 may be coupled with the corresponding second drive unit 041, and a second electrode of the second gating switch tube MS-T2 may be coupled with the other part of the pixels 02. The second gating switch tube MS-T2 may be configured to be turned on when the potential of the second enable signal provided by the second enable line GE2 is the first potential, such that the second drive unit 041 and the pixels 02 are connected, and then the second drive unit 041 transmits the second gate driving signal to the pixels 02. Moreover, the second gating switch tube MS-T2 may be configured to be turned off when the potential of the second enable signal provided by the second enable line GE2 is the second potential, such that the second drive unit 041 and the pixels 02 are uncoupled.
Optionally, the display panel described in the embodiments of the present disclosure may include the LTPO display panel described in the above embodiments. Exemplarily, taking the LTPO display panel as an example,
A gate of the transistor T1 may be coupled with a reset terminal N-Reset, a first electrode of the transistor T1 may be coupled with a first initial terminal Vinit1, and a second electrode of the transistor T1 may be coupled with a node N3. The transistor T1 may be configured to be turned on when the potential of a reset signal provided by the reset terminal N-Reset is a first potential, such that the first initial terminal Vinit1 and the node N3 are connected, and then a first initial signal provided by the first initial terminal Vinit1 may be transmitted to the node N3 to allow the reset of the node N3. Moreover, the transistor T1 may be configured to be turned off when the potential of the reset signal provided by the reset terminal N-Reset is a second potential, such that the first initial side Vinit1 and the node N3 are uncoupled.
A gate of the transistor T2 may be coupled with a gate signal terminal Gate_N, a first electrode of the transistor T2 may be coupled with the node N3, and a second electrode of the transistor T2 may be coupled with a node N1. The transistor T2 may be configured to be turned on when the potential of a gate driving signal provided by the gate signal terminal Gate_N is the first potential, such that the node N1 and the node N3 are connected. Moreover, the transistor T2 is configured to be turned off when the potential of the gate driving signal provided by the gate signal terminal Gate_N is the second potential, such that the node N1 and the node N3 are uncoupled.
A gate of the transistor T3 may be coupled with the node N1, a first electrode of the transistor T3 may be coupled with a node N2, and a second electrode of the transistor T3 may be coupled with the node N3. The transistor T3 may be configured to transmit a light-emitting drive signal to the node N3 based on the potential of the node N1 and the potential of the node N2. The transistor T3 may also be called a drive transistor.
A gate of the transistor T4 may be coupled with the gate signal terminal Gate_N, a first electrode of the transistor T4 may be coupled with a data signal terminal Vdata, and a second electrode of the transistor T4 may be coupled with the node N2. The transistor T4 may be configured to be turned on when the potential of the gate driving signal provided by the gate signal terminal Gate_P is the first potential, such that the data signal terminal Vdata and the node N2 are connected, and then a data signal provided by the data signal terminal Vdata may be transmitted to the node N2. On the basis that both the transistors T2 and T3 are turned on, the data signal transmitted to the node N2 may be further written into the node N1 via the transistors T3 and T2. Moreover, the transistor T4 may be configured to be turned off when the potential of the gate driving signal provided by the gate signal terminal Gate_P is the second potential, such that the data signal terminal Vdata and the node N2 are uncoupled.
A gate of the transistor T5 may be coupled with a light-emitting control terminal EM, a first electrode of the transistor T5 may be coupled with a drive power terminal VDD, and a second electrode of the transistor T5 may be coupled with the node N2. The transistor T5 may be configured to be turned on when the potential of a light-emitting control signal provided by the light-emitting control terminal EM is the first potential, such that the drive power terminal VDD and the node N2 are connected, and then a drive power signal provided by the drive power terminal VDD may be transmitted to the node N2. Moreover, the transistor T5 may be configured to be turned off when the potential of the light-emitting control signal provided by the light-emitting control terminal EM is the second potential, such that the drive power terminal VDD and the node N2 are uncoupled.
A gate of the transistor T6 may be coupled with the light-emitting control terminal EM, a first electrode of the transistor T6 may be coupled with a node N3, and a second electrode of the transistor T6 may be coupled with a first electrode of a light-emitting element L1. The transistor T6 may be configured to be turned on when the potential of the light-emitting control signal provided by the light-emitting control terminal EM is the first potential, such that the node N3 and the first electrode of the light-emitting element L1 are connected, and then a signal (for example, the light-emitting drive signal) transmitted to the node N3 may be transmitted to the first electrode of the light-emitting element L1. Moreover, the transistor T6 may be configured to be turned off when the potential of the light-emitting control signal provided by the light-emitting control terminal EM is the second potential, such that the node N3 and the first electrode of the light-emitting element L1 are uncoupled. In addition, a second electrode of the light-emitting element L1 may also be coupled with a pull-down power terminal VSS, and the light-emitting element L1 may emit light under the effect of a voltage difference between the signal received by the first electrode of the light-emitting element L1 and a pull-down power signal provided by the pull-down power terminal VSS coupled with the second electrode of the light-emitting element L1.
Optionally, for the first and second electrodes of the light-emitting element L1, one electrode may be an anode, and the other electrode may be a cathode. For example, referring to
A gate of the transistor T7 may be coupled with a reset terminal P-Reset, a first electrode of the transistor T7 may be coupled with a second initial terminal Vinit2, and a second electrode of the transistor T7 may be coupled with the first electrode of the light-emitting element L1. The transistor T7 may be configured to be turned on when the potential of a reset signal provided by the reset terminal P-Reset is the first potential, such that the second initial terminal Vinit2 and the first electrode of the light-emitting element L1 are connected, and then a second initial signal provided by the second initial-terminal Vinit2 may be transmitted to the first electrode of the light-emitting element L1 to allow the reset of the first electrode of the light-emitting element L1. Moreover, the transistor T7 may be configured to be turned off when the potential of the reset signal provided by the reset terminal P-Reset is the second potential, such that the second initial terminal Vinit2 and the first electrode of the light-emitting element L1 are uncoupled.
A gate of the transistor T8 may be coupled with a reset terminal H-Reset, a first electrode of the transistor T8 may be coupled with a third initial terminal Vinit3, and a second electrode of the transistor T8 may be coupled with the node N2. The transistor T8 may be configured to be turned on when the potential of a reset signal provided by the reset terminal H-Reset is the first potential, such that the third initial terminal Vinit3 and the node N2 are connected, and then a third initial signal provided by the third initial terminal Vinit3 may be transmitted to the node N2 to allow the reset of the node N2. Moreover, the transistor T8 may be configured to be turned off when the potential of the reset signal provided by the reset terminal H-Reset is the second potential, such that the third initial terminal Vinit3 and the node N2 are uncoupled.
One terminal of the capacitor C1 may be coupled with the node N1, and the other terminal of the capacitor C1 may be coupled with the drive power terminal VDD. The capacitor C1 may be configured to store the potential of the node N1 based on the drive power signal provided by the drive power terminal VDD.
Furthermore, the transistor T2 coupled with the gate signal terminal Gate_N may be an N-type transistor made of an oxide material; and the transistor T4 coupled with the gate signal terminal Gate_P may be a P-type transistor made of low temperature poly-silicon (LTPS). In this way, the display panel is called the LTPO panel. It should be noted that the material of the transistor here may refer to: the material of an active layer included in the transistor.
Moreover, combined with
It should be noted that the pixel circuit 021 may be not limited to the 8T1C structure shown in
In summary, the embodiments of the present disclosure provide a display panel. The display panel includes a substrate having a display region and a peripheral region, a plurality of pixels disposed in the display region, and a first drive circuit and a second drive circuit, which are disposed in the peripheral region. The first drive circuit includes a plurality of first drive units and a plurality of first gating units, in one-to-one correspondence. The second drive circuit includes a plurality of second drive units and a plurality of second gating units, in one-to-one correspondence. The plurality of first drive units are cascaded, are coupled with a first turn-on line, and are also coupled with one part of pixels in a row of pixels by a corresponding first gating unit. The plurality of second drive units are cascaded, are coupled with a second turn-on line, and are also coupled with the other part of the pixels in the row of pixels by a corresponding second gating unit. The first gating units are also coupled with a first enable line. The second gating units are also coupled with a second enable line. The plurality of first drive units may output first gate driving signals based on a first turn-on signal provided by a first turn-on line. The plurality of second drive units may output second gate driving signals based on a second turn-on signal provided by a second turn-on line. The first gating units may control on-off between the corresponding first drive units and one part of pixels based on a first enable signal provided by the first enable line. The second gating units may control on-off between the corresponding second drive units and the other part of pixels based on a second enable signal provided by the second enable line. In this way, the pixels in different regions (the upper, lower, left or right region) of the display region can be flexibly refreshed by flexibly setting the enable signals and the turn-on signals, and the frame rates for different regions can be different, such that partial update can be achieved, thereby reducing power consumption and achieving a high intelligence level.
In step 1001, refresh requirements of different regions in a display region provided in a substrate are determined.
In the embodiments of the present disclosure, the different regions include a left region and a right region, which are arranged along the pixel row direction X1, and/or, an upper region and a lower region, which are arranged along the pixel column direction Y1, and the refresh requirements may be configured to indicate whether refresh is required and a refresh frequency. Exemplarily, combined with
Optionally, the method for display control as described in the embodiments of the present disclosure is applicable to a driver chip, also known as a driver integrated circuit (DIC), included in the display device.
The DIC may be coupled with a host-side access point (AP). The DIC may directly determine the refresh requirements, i.e., determining the positions of the left and right regions to be refreshed and the positions of the upper and lower regions to be refreshed in the display region; or, the DIC may also receive data signals from the AP, and then determine the refresh requirements by comparing a data signal received in real time with a data signal of a previous frame.
In step 1002, in response to a frame synchronization signal and based on the refresh requirements, a first enable signal is transmitted to a first enable line coupled with a plurality of first gating units, and a second enable signal is transmitted to a second enable line coupled with a plurality of second gating units.
The first enable signal of a first potential may be configured to indicate the first gating units to control the corresponding first drive units and the one part of the pixels coupled with the first drive units to be connected; and the first enable signal of a second potential may be configured to indicate the first gating units to control the corresponding first drive units and the one part of the pixels coupled with the first drive units to be uncoupled.
Similarly, the second enable signal of a first potential may be configured to indicate the second gating units to control the corresponding second drive units and another part of the pixels coupled with the second drive units to be connected; and the second enable signal of a second potential may be configured to indicate the second gating units to control the corresponding second drive units and another part of the pixels coupled with the second drive units to be uncoupled.
Optionally, after determining the refresh requirements, the DIC may further generate the first and second enable signals based on the refresh requirements in response to the frame synchronization signal Vsync, and output the first and second enable signals to the first enable line GE1 and the second enable line GE2, respectively. The frame synchronization signal Vsync is configured to indicate the start of the scanning of a single frame.
In step 1003, in response to the frame synchronization signal, a first turn-on signal is transmitted to a first turn-on line coupled with a plurality of first drive units, and a second turn-on signal is transmitted to a second turn-on line coupled with a plurality of second drive units.
The first turn-on signal may be configured to indicate the plurality of drive units to output first gate driving signals, and the second turn-on signal is configured to indicate the plurality of second drive units to output second gate driving signals.
Optionally, the DIC may also generate the first and second turn-on signals in response to the frame synchronization signal Vsync, and transmit the first and second turn-on signals to the first turn-on line STV1 and the second turn-on line STV2, respectively.
In the embodiments of the present disclosure, when the first gating units control the first drive units and the one part of the pixels coupled with the first drive units to be connected, the first drive units may transmit the first gate driving signals to the one part of the pixels, to drive the one part of the pixels to emit light. When the second gating units control the second drive units and the another part of the pixels coupled with the second drive units to be connected, the second drive units transmit the second gate driving signals to the another part of the pixels, to drive the another part of the pixels to emit light.
Optionally, taking the first potential of a high potential and the second potential of a low potential as an example,
The first enable signal is pulled up, such that when the potential of the first enable signal is high, the first gating units 032 may control, based on the first enable signal of the high potential, the first drive units 031 and one part of pixels 02 coupled with the first drive units to be connected, making the first drive units 031 transmit the first gate driving signals to the one part of the pixels 02, thereby refreshing and scanning the one part of the pixels 02. The first enable signal is pulled down, such that when the potential of the first enable signal is low, the first gating units 032 may control, based on the first enable signal of the low potential, the first drive units 031 and the one part of the pixels 02 coupled with the first drive units to be uncoupled, making the first drive units 031 fail to transmit the first gate driving signals to the one part of the pixels 02, thereby not refreshing and scanning the one part of the pixels 02, which may be maintained in the state of the latest frame.
The second enable signal works in a similar way, where the second enable signal is pulled up, such that when the potential of the second enable signal is high, the second gating units 042 may control, based on the second enable signal of the high potential, the second drive units 041 and the other part of the pixels 02 coupled with the second drive units to be connected, making the second drive units 041 transmit the first gate driving signals to the other part of the pixels 02, thereby refreshing and scanning the other part of the pixels 02. The second enable signal is pulled down, such that when the potential of the second enable signal is low, the second gating units 042 may control, based on the second enable signal of the low potential, the second drive units 041 and the other part of the pixels 02 coupled with the second drive units to be uncoupled, making the second drive units 041 fail to transmit the first gate driving signals to the other part of the pixels 02, thereby not refreshing and scanning the other part of the pixels 02, which may be maintained in the state of the latest frame.
As a result, the positions of different regions (upper, lower, left, and right regions) in the display region can be intelligently refreshed by flexibly setting the first and second enable signals, thereby achieving frequency-division drive.
In summary, the embodiments of the present disclosure provide a method for display control. In the method, the plurality of first drive units can output first gate driving signals based on a first turn-on signal provided by a first turn-on line. The plurality of second drive units can output second gate driving signals based on a second turn-on signal provided by a second turn-on line. The first gating units can control on-off between the corresponding first drive units and one part of pixels based on a first enable signal provided by the first enable line. The second gating units can control on-off between the corresponding second drive units and the other part of pixels based on a second enable signal provided by the second enable line. In this way, the pixels in different regions (the upper, lower, left or right region) of the display region can be flexibly refreshed by flexibly setting the enable signals and the turn-on signals, and the frame rates for different regions can be different, such that partial update can be achieved, thereby reducing power consumption to achieve the purpose of intelligence and power saving.
The driver chip DIC is coupled with a signal line coupled with a circuit in the display panel 00 and is configured to provide a signal to the signal line.
For example, the driver chip DIC may be coupled with the first turn-on line STV1 coupled with the first drive units 031 included in the first drive circuit 03, with the first enable line GE1 coupled with the first gating units 032 included in the first drive circuit 03, with the second turn-on line STV2 coupled with the second drive units 041 included in the second drive circuit 04, and with the second enable line GE2 coupled with the second gating units 042 included in the second drive circuit 04, in the display region 00. The driver chip DIC is configured to provide a first turn-on signal to the first turn-on line STV1, a second turn-on signal to the second turn-on line STV2, a first enable signal to the first enable line GE1, and a second enable signal to the second enable line GE2.
Optionally, the display device described in the embodiments of the present disclosure may be a mobile phone (for example, a foldable mobile phone available for left-right screen splitting), a tablet computer, a flexible display device, a television set, a display, or any other products or components having a display function. Taking a mobile phone as the display device as an example, the solutions described in the embodiments of the present disclosure may also enable the mobile phone to allow the design of left-right screen splitting while rotating, showing high drive flexibility.
It should be noted that the terms used in the embodiments of the present disclosure are to explain the embodiments of the present disclosure, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be taken to mean the ordinary meanings as understood by those of ordinary skills in the art to which the present disclosure belongs.
For example, in the embodiments of the present disclosure, the terms “first” and “second” are only for a descriptive purpose and should not be understood as indicating or implying relative importance. The term “a plurality of” means two or more in number, unless otherwise expressly defined.
Similarly, “a,” “an” or similar words are also not intended to limit the number, but to denote the number of at least one.
“Connection” or “coupling” refers to an electrical connection. “And/or” indicates the presence of three types of possible relationships. For example, A and/or B may indicate the following three cases: A exists alone; both A and B exist; or B exists alone. The character “/” generally indicates an “or” relation between front and back associated objects.
The terms “comprise,” “include,” or the like are intended to mean that elements or objects appearing before said term cover elements or objects or equivalents listed after said term, but do not exclude other elements or objects.
“Upper,” “lower,” “left,” “right,” and the like are only intended to indicate a relative positional relationship, and when the absolute position of a described object changes, the relative positional relationship thereof may also change accordingly.
Described above are merely optional embodiments of the present disclosure, but are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, and the like made within the spirit and principles of the present disclosure should be included within the scope of protection of the present disclosure.
This application is a U.S. national phase application based on PCT/CN2023/090338, filed on Apr. 24, 2023, the content of which is incorporated herein by reference in its entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/CN2023/090338 | 4/24/2023 | WO |