The present disclosure relates to the field of display technologies, and in particular, to a display panel and a driving method therefor, a gamma tuning method, and a display device.
With the continuous maturity of active matrix/organic light emitting diode (AMOLED) technology, in order to minimize left and right bezels of a panel, a gate drive on array (GOA) circuit is used instead of a traditional line scan control circuit.
In a small and medium-sized display product (such as a mobile phone), in order to improve the driving capability of the GOA circuit, bilateral GOA circuits (i.e., two columns of GOA circuits are arranged on two sides of the display region, and two ends of one same scan line are electrically connected to GOA output terminals at two sides of the row of the scan line respectively, and signals output by the two GOA output terminals are the same) are usually used to drive a display screen.
With the enhancement of entertainment attributes of products such as mobile phones, it is required that such products can support multiple frequencies for image display in order to adapt to different display modes. When a higher frequency is used for display, the power consumption is usually larger.
Embodiments of the present disclosure provide a display panel, a driving method for the display panel, a gamma tuning method, and a display device, so as to solve the above-mentioned problems in the prior art.
In a first aspect, in order to solve the above technical problems, embodiments of the present disclosure provides a display panel, wherein: pixels in the display panel are arranged in an array, the display panel includes a plurality of display sub-regions in a row direction of the array, and the display panel further includes:
In possible implementations, multiple switch circuits, of the plurality of switch circuits, between two display sub-regions adjacent to each other are in a linear arrangement.
In possible implementations, the linear arrangement includes arrangement along a line parallel to a column direction of the array.
In possible implementations, the linear arrangement includes arrangement along an oblique line intersecting the column direction.
In possible implementations, multiple switch circuits, of the plurality of switch circuits, between two display sub-regions adjacent to each other are in a non-linear arrangement.
In possible implementations, areas of the plurality of display sub-regions are different.
In possible implementations, areas of the plurality of display sub-regions are the same.
In possible implementations, the switch circuit includes a thin film transistor, and a first terminal and a second terminal of the thin film transistor are electrically connected to one terminal of one of the two scan sub-lines adjacent to each other in the scan line and one terminal of the other of the two scan sub-lines.
In possible implementations, control terminals of multiple thin film transistors between two display sub-regions adjacent to each other are electrically connected to a same signal control terminal.
In a second aspect, embodiments of the present disclosure provide a driving method for a display panel according to the first aspect, including:
In possible implementations, the setting, according to the quantity of types of frequencies of the scan signals outputted by the plurality of scan driving circuits in the display panel for the same frame image, the working states corresponding to the plurality of switch circuits includes:
In possible implementations, the setting, according to the quantity of types of frequencies of the scan signals outputted by the plurality of scan driving circuits in the display panel for the same frame image, the working states corresponding to the plurality of switch circuits includes:
In possible implementations, the setting, when the quantity of types of frequencies of the scan signals outputted by the plurality of scan driving circuits in the display panel for the same frame image is multiple, the working states of the plurality of switch circuits to the off state includes:
In a third aspect, embodiments of the present disclosure provide a gamma tuning method for a display panel according to the first aspect. The gamma tuning method includes:
In a fourth aspect, embodiments of the present disclosure provide a display device, including the display panel as described in the first aspect.
Embodiments of the present disclosure provide a display panel, a driving method therefor, a gamma tuning method, and a display device, so as to solve the above problems existing in the prior art.
In order to make the above objects, features and advantages of the present disclosure be more apparent and understandable, the present disclosure will be further described below with reference to the accompanying drawings and embodiments. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repeated descriptions will be omitted. The words expressing the position and direction in the present disclosure are all described by taking the accompanying drawings as examples, but changes can also be made as required, and the changes are all included in the claimed scope of the present disclosure. The drawings of the present disclosure are only used to illustrate the relative positional relationship and do not represent actual scales.
It should be noted that specific details are set forth in the following description in order to facilitate a thorough understanding of the present disclosure. However, the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar promotions without departing from the connotation of the present disclosure. Accordingly, the present disclosure is not limited by the specific embodiments disclosed below. Subsequent descriptions of the specification are preferred embodiments for implementing the present disclosure. However, the descriptions are for the purpose of illustrating the general principles of the present disclosure and are not intended to limit the scope of the present disclosure. The claimed scope of the present disclosure should be defined by the appended claims.
For better user experience, the industry has launched multi-frequency display products (i.e., products that support multiple refresh frequencies for image display), which have been mass-produced at 60/90/120 Hz. The realization of multi-frequency products (such as multi-frequency AMOLED) is mainly completed by adjusting the GOA driving signals. The highest refresh frequency of the display screen is required in the game mode.
The multi-frequency AMOLED makes the product really have good performance in some scenarios. However, in the related art, limited by the design of the display panel, the display panel can only maintain one refresh frequency at a certain moment. When a product containing a multi-frequency display panel is used by a user for playing games, the display panel is required to display images at a high refresh frequency, resulting in high power consumption of the display product.
Please refer to
In
In addition, in the production of the multi-frequency display panel (that is, a display panel is provided with multiple refresh frequencies, and use one of the refresh frequencies for image display at a certain moment), since a separate gamma tuning is required for each frequency, the multi-frequency means that the tact time of gamma tuning will be multiplied, resulting in a decrease in production efficiency.
The following describes the display panel, the driving method therefor, the gamma tuning method, and the display device provided by the embodiments of the present disclosure in detail with reference to the accompanying drawings.
Please refer to
Pixels in the display panel are arranged in an array, and the display panel includes a plurality of display sub-regions ‘a’ in a row direction X of the array. The display panel further includes:
In
Each display sub-region ‘a’ may correspond to one scan driving circuit 2, or only part of the display sub-regions ‘a’ each corresponds to one scan driving circuit. As shown in
When the plurality of switch circuits 3 shown in
Similarly, when the display panel includes more display sub-regions ‘a’ in the row direction X, it can be deduced by analogy, and details are not repeated.
It should be noted that, in
In embodiments provided by the present disclosure, multiple scan lines 1 each include multiple scan sub-lines 1a that control the same pixel row, and the multiple scan sub-lines 1a correspond to multiple display sub-regions one-to-one. The switch circuit 3 is arranged between two adjacent scan sub-lines 1a in the same scan line 1. When the switch circuit 3 is configured to be in an off state, the frequencies of the scan signals output by the multiple scan driving circuits 2 to at least some of the different scan sub-lines 1a in the same scan line 1 are controlled to be different, so that the display panel can display the images by using a variety of different refresh frequencies at the certain moment. When the display panel works in the game mode, the game image can be displayed at the high refresh frequency, while the image of the control part (such as the virtual button) can be displayed at the low refresh frequency, and therefore there is no need for the entire image to be displayed at the high refresh frequency as in the prior art, so as to effectively reduce the power consumption of the display panel.
In possible implementations, multiple switch circuits 3 between two adjacent display sub-regions ‘a’ are in a linear arrangement.
As shown in
Referring to
As shown in
As shown by the dotted lines (illustrating the multiple switch circuits 3) in
Please refer to
As shown in
It should be noted that multiple switch circuits 3 between two adjacent display sub-regions ‘a’ are not limited to the arrangements in the above figures, and may also be other arrangements.
By arranging multiple switch circuits 3 between two adjacent display sub-regions ‘a’ in a linear or non-linear arrangement, the display panel can be customized according to customer requirements, so that the image of the control part in the game mode can be displayed in a specific region consisting of one display sub-region ‘a’ or multiple display sub-regions ‘a’ adjacent to each other in the display panel, so as to carry out personalized customization.
In possible implementations, the areas of the multiple display sub-regions ‘a’ are different. Please continue to refer to
In possible implementations, the areas of the multiple display sub-regions ‘a’ are the same.
Please continue to refer to
Since multiple switch circuits 3 are included in the display panel, images can be displayed by the display panel at different refresh frequencies at the same time, so that when gamma tuning (brightness correction) is performed on the display panel, the gamma tuning performed on the display panel can be completed at different refresh frequencies at the same time, so as to effectively reduce the tact time of the display panel and improve the production efficiency.
Please refer to
The switch circuit 3 includes a thin film transistor, and a first terminal and a second terminal of the thin film transistor are electrically connected to one terminal of one of two adjacent scan sub-lines 1a in the scan line 1 and one terminal of the other one of the two adjacent scan sub-lines 1a.
Control terminals of multiple thin film transistors are electrically connected to the same one signal control terminal.
The thin film transistor may be an N-type thin film transistor or a P-type thin film transistor.
By setting the switch circuit 3 as the thin film transistor, the switch circuit 3 can be manufactured by using the original materials for manufacturing the display panel without adding other materials.
By electrically connecting control electrodes of multiple thin film transistors to the same one signal control terminal, it is convenient to quickly set the multiple thin film transistors to the off or on state at the same time.
Based on the same inventive concept, embodiments of the present disclosure provide a driving method for a display panel, including:
For example, taking
When an image needs to be displayed in the entire display region of the display panel at a refresh frequency of 60 Hz, the frequencies of the scan signals output by the two scan driving circuits 2 are both 60 Hz. The plurality of switch circuits 3 is set to the on state before the two scan driving circuits 2 start outputting the scan signals. Then the two scan driving circuits are controlled to simultaneously start outputting the scan signals with the frequency of 60 Hz.
When images needs to be simultaneously displayed in different display sub-regions ‘a’ of the display region of the display panel at the refresh frequencies of 60 Hz and 120 Hz, the frequencies of the scan signals output by the two scan driving circuits 2 are 60 Hz and 120 Hz respectively. Before the two scan driving circuits 2 are controlled to start outputting the scan signals, the plurality of switch circuits 3 are set to the off state. Then the two scan driving circuits are controlled to simultaneously start outputting the scan signals with the frequencies 60 Hz and 120 Hz respectively.
In possible implementations, the setting, according to the quantity of types of frequencies of the scan signals outputted by the plurality of scan driving circuits in the display panel for the same frame image, the working states of the plurality of switch circuits, including:
In possible implementations, the setting, according to frequencies of the scan signals outputted by the plurality of scan driving circuits in the display panel for the same frame image, the working states of the plurality of switch circuits, including:
In possible implementations, the setting, when the quantity of types of frequencies of the scan signals outputted by the plurality of scan driving circuits in the display panel for the same frame image is multiple, the working states of the plurality of switch circuits to the off state including:
Based on the same inventive concept, embodiments of the present disclosure provide a gamma tuning method based on the above-mentioned display panel. Please refer to
Please refer to
In the display panel shown in
In this way, when gamma tuning (brightness correction) is performed on the display panel, one optical detection probe can be set for each of the two display sub-regions to collect the brightness of the corresponding display sub-region, and then gamma tuning is performed on the respective display sub-regions at the same time according to the collected brightness of the respective display sub-regions and the actual brightness displayed in the respective display sub-regions. Since gamma tuning can be performed on the display panel at different refresh frequencies at the same time, it is not necessary to perform gamma tuning at each refresh frequency one by one as in the prior art, which can effectively reduce the tact time of the gamma tuning for the multi-frequency display panel and improve the production efficiency.
It should be noted that, since the manner of performing gamma tuning on the display sub-region is the same as that in the related art when displaying with a single refresh frequency, the details of how to perform the gamma tuning on the display sub-region will not be repeated.
Based on the same inventive concept, embodiments of the present disclosure provide a display device including the above-mentioned display panel.
The display device can be a display device such as an AMOLED display, an AMOLED display screen, an AMOLED TV, etc., or a mobile device such as a mobile phone, a tablet computer, and a notebook, etc.
While the preferred embodiments of the present disclosure have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are appreciated. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the present disclosure.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, provided that these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to cover such modifications and variations.
Number | Date | Country | Kind |
---|---|---|---|
202110423536.4 | Apr 2021 | CN | national |
The present application is a National Stage of International Application No. PCT/CN2021/125630, filed Oct. 22, 2021, which claims the priority to Chinese patent application No. 202110423536.4, filed with China National Intellectual Property Administration on Apr. 20, 2021 and entitled “DISPLAY PANEL AND DRIVING METHOD THEREFOR, GAMMA TUNING METHOD, AND DISPLAY DEVICE”, the entire content of which is incorporated herein by reference.
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/CN2021/125630 | 10/22/2021 | WO |