Patent Application
20250078775
The present application relates to a field of display technologies, especially to manufacture of a display device, and particularly especially to display panel, a driving method thereof, and an electronic device thereof.
A liquid crystal display device, as a widely used display device, is currently considering the cost of the data driver chip. It can adopt a triple-gate electrode driver framework to reduce the number of data lines to one-third of the normal driver framework. At the same time, the number of scanning lines is increased to three times that of the normal driver framework. This results in reducing the width and charging time of each gate electrode pulse to one-third of the normal driver framework.
In the triple-gate electrode driver framework, as shown in
Therefore, there is an urgent need for improvement in liquid crystal display devices using the conventional triple-gate electrode driver framework due to the aforementioned reasons causing color cast issues in single-color screen images or two-color mixed-color screen images.
An objective of the present application is to provide a display panel, a driving method, and an electronic device thereof to mitigate color cast issues in single-color screen images or two-color mixed-color screen images within the conventional triple-gate electrode driver framework of liquid crystal display devices.
The present application provides a display panel, comprising:
The present application discloses a display panel and its driving method, along with an electronic device. In the display stage of a first type frame, the first sub-pixel can be turned off by controlling the first gate electrode driver unit, meaning that the first sub-pixel is not scanned. This change results in the transition from sequentially scanning both the first sub-pixel and the second sub-pixel simultaneously to at least non-scanning of the first sub-pixel within the same time frame. Relatively speaking, the scanning duration for the second sub-pixel can be extended, effectively utilizing the time originally required to scan the first sub-pixel. This, in turn, increases the charging duration of the second sub-pixel, leading to an improvement in color accuracy and enhancing the quality of the displayed screen image.
Further explanation of the present application is provided through the following illustrations. It should be noted that the drawings in the following description are solely intended to clarify certain embodiments of the present application. For professionals in this field, it is possible to obtain additional illustrations based on these drawings without the need for inventive effort.
The technical solution in the embodiment of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are merely some embodiments of the present application instead of all embodiments. According to the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative effort shall fall within the protection scope of the present application.
In the description of the present application, terms such as “first,” “second,” and the like are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or specifying the quantity of technical features being referred to. Consequently, features labeled as “first” or “second” may explicitly or implicitly encompass one or more of the said features. Furthermore, it should be clarified that the illustrations provided are limited to structures closely related to the present application. Some details unrelated to the application have been omitted with the purpose of simplifying the drawings, making the key points of the application more apparent, rather than suggesting that the actual device is identical to the drawings. Specifically, the term “equal to,” as mentioned in the present application, can denote not only equality between two items but also signify that the difference between them is extremely small, such as an absolute difference value smaller than a threshold value. This threshold value can be set according to the actual circumstances and is intended to convey the concept of “is equal to.” In particular, the terms “previous pixel unit” and “next pixel unit” mentioned in the present application can be understood to mean that, among adjacent pairs of pixel units, the data line transmits “previous pixel unit” and “next pixel unit” corresponding to two distinct data voltages, respectively.
“Embodiment” mentioned in the specification means that specific features, structures, or characteristics described in combination with the embodiments can be included in at least one embodiment of the present invention. Terminologies presenting at each location of the specification do not necessarily refer to the same embodiment, and is either not an individual or backup embodiment mutually exclusive to other embodiment. A person of ordinary skill in the art can explicitly or implicitly understand that the embodiment described in the specification can combine other embodiment.
The present application provides a display panel, the display panel can comprise but is not limited to any combination of the following embodiments.
In an embodiment, with reference to
The display stage of the first type frame can be understood as a time period occupied to sequentially scan a plurality of sub-pixels of different rows to control the sub-pixels to switch on for displaying a first type frame. When each of the data lines 10 is connected to the first sub-pixels 201 (blue sub-pixels B) and the second sub-pixels 202 (green sub-pixel G) arranged circularly, as shown in
“The first gate electrode driver unit 301 controls the first sub-pixel 201 (blue sub-pixel B) to switch off” can be understood as non-scanning of the first sub-pixel 201 (blue sub-pixel B), namely, T0 needs no allocation of duration for scanning the first sub-pixel 201.
The display panel 100 can comprise a plurality of sub-pixels, the sub-pixels can at least comprise first sub-pixels 201 and second sub-pixel 202 in different colors. The present application, for convenience of explanation, only uses the sub-pixels arranged in an array, the sub-pixels of the same column connected to the same one of the data lines 10, the sub-pixels of the same row connected to the same gate electrode driver unit 30, and the first sub-pixel 201 and the second sub-pixel 202 being a blue sub-pixel B and a green sub-pixel G respectively, as an example for explanation. However, the above configuration is not limited. Furthermore, the sub-pixels of the same row can be electrically connected to a corresponding gate electrode driver unit 30 through the same gate electrode line 40. For instance, the first gate electrode driver unit 301 and the second gate electrode driver unit 302 can be electrically connected to the blue sub-pixels B and the green sub-pixel G of the corresponding row through a corresponding first gate electrode line G4 and a corresponding second gate electrode line G5. The gate electrode line 40 can transmit a scan signal generated by a corresponding gate electrode driver unit 30 to the sub-pixels of a corresponding row. If the scan signal is a corresponding effective scan signal, it can control the sub-pixels of a corresponding row to switch on, namely, it can control a plurality of transistors corresponding to the sub-pixels of a corresponding row to switch on such that the sub-pixels of the row can be loaded with corresponding data voltages through the data lines 10 respectively to emit light to present corresponding brightness.
In particular, for convenience of description, it can be considered that the data lines 10, from bottom to top, sequentially transmits a plurality of data voltages corresponding to the sub-pixels, and the first sub-pixel 201 (blue sub-pixel B) and the second sub-pixel 202 (green sub-pixel G) corresponding to the first data voltage VB and the second data voltage VG sequentially transmitted by the data line 10 can be located in a previous row and a next row respectively, for example, the blue sub-pixel B in
It can be understood that the display panel 100 in the present embodiment comprises the display stage of the first type frame, and in this stage, the second sub-pixel 202 is controlled based on the second data voltage VG to emit light, the first gate electrode driver unit 301 does not scan the first sub-pixel 201, the second gate electrode driver unit 302 outputs a first effective scan signal to control the second sub-pixel 202 to switch on. Namely, it can be considered that sequentially scanning the first sub-pixel 201 and the second sub-pixel 202 in the same time changes to at least skipping scanning the first sub-pixel 201 in the same time. Comparatively, a duration for scanning the second sub-pixel 202 can be prolonged. Namely, a time originally required for scanning the first sub-pixel 201 is utilized to increase a charging duration of the second sub-pixel 202 to mitigate the color cast, which improves quality of the displayed screen image.
It should be noted that the present embodiment only limits that in the display stage of the first type frame, the first gate electrode driver unit 301 does not scan the first sub-pixel 201. However, it can be considered that the data line 10 still sequentially transmits the first data voltage VB and the second data voltage VG, and at least can realize at least in a time period of the second sub-pixel 202 switching on, data line at least transmits a second data signal applied to the second sub-pixel 202.
In an embodiment, based on
It can be understood that in the present embodiment, by controlling the timing control module to transmit a null clock signal to the first gate electrode driver unit 301 to drive the first gate electrode driver unit 301 to output a null scan signal to the first sub-pixel 201, scanning the first sub-pixel 201 can be skipped. It can be understood that in the null scan signal includes no corresponding effective pulse to realize non-scanning of the first sub-pixel 201. Alternatively, non-scanning of the first sub-pixel 201 is implemented by controlling a manner of disconnection between the timing control module and the first gate electrode driver unit 301. For instance, a switch element such as, but not limited to, a transistor can be disposed between the timing control module and the first gate electrode driver unit 301 to control the connection and disconnection between the timing control module and the first gate electrode driver unit 301.
In an embodiment, based on
It should be noted that in combination the above description, the present application can improve the display stage of the first type frame, which can be understood that a difference between theoretical light emission brightness of the second sub-pixel 202 and theoretical light emission brightness (0) of the first sub-pixel 201 is greater, resulting in a stage of the second sub-pixel 202 in a next row having a color cast risk. Of course, a display stage of a second type frame also exists, which can be understood that a difference between the theoretical light emission brightness of the second sub-pixel 202 and theoretical light emission brightness of the first sub-pixel 201 is less, not resulting in a stage of the second sub-pixel 202 in a next row having a color cast risk. In the meantime, the first sub-pixel 201 and the second sub-pixel 202 can be sequentially scanned normally and the first sub-pixel 201 and the second sub-pixel 202 can be controlled to emit light with corresponding brightness, respectively.
In an embodiment, with reference to
In an embodiment, with reference to
Similarly, “the third gate electrode driver unit 303 controls the third sub-pixel 203 to switch off” can also be understood as non-scanning of the third sub-pixel 203 (red sub-pixel R), namely, in T0, no allocation of a duration is required for scanning the third sub-pixel 203.
Similarly, here for convenience of description, the third sub-pixel 203 being a red sub-pixel R is used as an example for explanation, and it can be considered that the first sub-pixel 201 (blue sub-pixel B) and the third sub-pixel 203 can be located in a previous row and a next row of the second sub-pixels 202 (green sub-pixels G) respectively. For instance, the blue sub-pixel B in
It can be understood that in the display stage of the first type frame, on the basis of the second gate electrode driver unit 302 outputting a first effective scan signal to control the second sub-pixel 202 to switch on, and the first gate electrode driver unit 301 not scanning the first sub-pixel 201, the present embodiment further discloses that the red sub-pixel R is disposed after the green sub-pixel G. However, for the display stage of the first type frame, no limit is for scanning of the third sub-pixel 203 (red sub-pixel R).
In particular, with reference to
For example, reference to
In particular, here the display stage of the first type frame, the second data voltage VG being a greater value is used as an example for explanation: After the second sub-pixel 202 switches on, the third sub-pixel 203 (red sub-pixel R) can also switch on. with reference to
In an embodiment, the same one of the data lines 10 is connected to first sub-pixels 201 and second sub-pixels 202, the data line 10 is at least configured to sequentially transmit each of the first data voltage VB and a corresponding second data voltage VG. In the display stage of the first type frame, the second gate electrode driver units 302 output the corresponding first effective scan signals gate1 to control the second sub-pixels 202 to sequentially switch on and be loaded with the corresponding second data voltages to emit light. Each of the first gate electrode driver units 301 control the corresponding first sub-pixel 201 to switch off (namely, non-scanning). As described above, it can be considered that in the same time, alternately scanning the first sub-pixels 201 and the second sub-pixels 202 changes to sequentially scanning the second sub-pixels 202 such that a duration scanning each of the second sub-pixels 202 can be prolonged, which increases a charging duration of the second sub-pixel 202 to mitigate the color cast.
Similarly, if the third sub-pixel 203 exists, also in the display stage of the first type frame, a plurality of third gate electrode driver units 303 correspondingly outputs a plurality of the second effective scan signals gate2 to control the third sub-pixels 203 to sequentially switch on. It can be considered that in the same time, sequentially scanning a plurality of pixel units 20, and in each of the pixel units 20, sequentially scanning the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203, changes to in each of the pixel units 20, sequentially scanning the second sub-pixel 202 and the third sub-pixel 203, prolongs a duration of scanning each second sub-pixel 202, which increases a charging duration of the second sub-pixel 202 to mitigate the color cast.
In an embodiment, with reference to
It should be noted that in the display stage of the first type frame, when the third sub-pixel 203 (the red sub-pixel R located in the third row) corresponding to a previous one of the pixel units 20 switches on and is loaded with the corresponding third data voltage VR, and the corresponding third data voltage VR is unequal to the first sub-data voltage VB1, interference of light emission brightness of the sub-pixels easily occurs due to the third data voltage VR corresponding to the previous pixel unit 20 transmitted by the data lines 10 and the first sub-data voltage VB1 corresponding to the next pixel unit 20 are disposed adjacent to each other and are unequal.
In particular, here the description is based on adjacent two of the pixel units 20, in combination with the above description, even no scanning of the first sub-pixel 201 is performed, the data lines 10 still transmits the first data voltage VB. For instance, the first data voltage VB corresponding to the first sub-pixel 201 (the blue sub-pixel B located in the fourth row) at least comprises a first sub-data voltage VB1 equal to the second data voltage VG. The present embodiment further defines that a time period of the first sub-data voltage VB1 corresponding to the first sub-pixel 201 (the blue sub-pixel B located in the fourth row) has no overlap with a time period of the third sub-pixel 203 (the red sub-pixel R located in the third row) of the previous pixel unit 20 switching on, which can prevent the first sub-data voltage VB1 from being erroneously supplied to the third sub-pixel 203 (the red sub-pixel R located in the third row) and causing the third sub-pixel 203 unable to achieve corresponding light emission or non-light emission.
In an embodiment, with reference to
In particular, as shown in
It can be understood that the present embodiment sets the first data voltage VB to further comprise second sub-data voltage VB2equal to a corresponding a next one of the pixel unit 20. Also, when the third sub-pixel 203 (the red sub-pixel R located in the third row) corresponding to the same one of the pixel units 20 switches on, the data lines 10, after transmitting the corresponding third data voltage VR, also transmits a second sub-data voltage VB2 included in the first data voltage VB. Similarly, after the third data voltage VR is applied to the third sub-pixel 203, the data line 10 can also transmit the second sub-data voltage VB2 equal to third data voltage VR to maintain the second sub-data voltage VB2 equal to third data voltage VR to be applied subsequently to the third sub-pixel 203, which compensates an amount of signal decay of the data voltage VR transmitted by the data line 10 in an early stage to improve reliability of light emission of the third sub-pixel 203.
In an embodiment, with reference to
In an embodiment, based on
It can be understood that the present embodiment sets the third data voltage VR corresponding to the third sub-pixel 203 (red sub-pixel R) to sequentially include a third sub-data voltage having a greater difference from the second data voltage VG corresponding to a previous pixel unit 20 and a fourth sub-data voltage having a less difference from the second data voltage VG corresponding to a previous pixel unit 20 such that the third sub-data voltage transmitted by the data line 10 can over-drive the third sub-pixel 203 before the fourth sub-data voltage arrives in, which lowers an amount of signal decay of the data voltage VR transmitted by the data line 10 in a later stage to improve reliability of light emission of the third sub-pixel 203.
In an embodiment, based on
It can be understood that because the third gate electrode driver unit 303 does not scan the third sub-pixel 203, the second gate electrode driver unit 302 outputs the first effective scan signal to control the second sub-pixel 202 to switch on. Namely, it can be considered that the duration of scanning the second sub-pixel 202 in the same time can further comprise a time originally required to scan the third sub-pixel 203 such that the charging duration of the third sub-pixel 203 can be increased to mitigate the color cast. Furthermore, in combination with the discussion regarding the second sub-data voltage VB2 mentioned in the previous context, after the second data voltage VG is applied to the second sub-pixel 202, the data lines 10 can also transmit a fifth sub-data voltage equal to the second data voltage VG, which can compensate an amount of signal decay of the second data voltage VG transmitted by the data line 10 in an early stage to improve reliability of light emission of the second sub-pixel 202.
The present application further comprises an electronic device, the electronic device can comprise any one of the display panels as described above.
The present application also provides a display panel driving method for driving any display panel as described above. With reference to
A step S1 comprises in the display stage of the first type frame, controlling the second gate electrode driver unit 302 (for instance, corresponding to the gate electrode line G2) to outputs the first effective scan signal gate1 to control the second sub-pixel 302 (for instance, corresponding to the green sub-pixel G located in a second ro) to switch on, and controlling the second data voltage VG to be loaded to the second sub-pixel 202 such that the second sub-pixel 202 emits light.
A step S2 comprises in the display stage of the first type frame, controlling the first gate electrode driver unit 301 to control the first sub-pixel 201 to switch off.
It can be understood that during the display stage of the first type frame, the first sub-pixel 201 is not scanned by controlling the first gate electrode driver unit 301. Simultaneously, the second gate electrode driver unit 302 is controlled to output the first effective scan signal to control the second sub-pixel 202 to switch on. Combining the information discussed earlier, it becomes evident that this approach extends the scanning duration of the second sub-pixel 202. Consequently, it increases the charging duration of the second sub-pixel 202, leading to color cast mitigation and an improvement in the quality of the displayed screen image.
In an embodiment, based on
In particular, as mentioned earlier, with reference to the preceding discussion, during the display stage of the first type frame, it is possible to achieve the non-scanning of the first sub-pixel 201 by controlling the timing control module to transmit a null clock signal to the first gate electrode driver unit 301 such that the first gate electrode driver unit 301 outputs a null scan signal to the first sub-pixel 201, thus avoiding the scanning of the first sub-pixel 201, or by controlling the timing control module to be disconnected from the first gate electrode driver unit 301, effectively interrupting the connection between them, which also results in the non-scanning of the first sub-pixel 201.
The present application discloses a display panel and its driving method, along with an electronic device. In the display stage of a first type frame, the first sub-pixel can be turned off by controlling the first gate electrode driver unit, meaning that the first sub-pixel is not scanned. This change results in the transition from sequentially scanning both the first sub-pixel and the second sub-pixel simultaneously to at least non-scanning of the first sub-pixel within the same time frame. Relatively speaking, the scanning duration for the second sub-pixel can be extended, effectively utilizing the time originally required to scan the first sub-pixel. This, in turn, increases the charging duration of the second sub-pixel, leading to an improvement in color accuracy and enhancing the quality of the displayed screen image.
The display panel, the driving method thereof, and the electronic device thereof provided by the embodiment of the present application are described in detail as above. The principles and implementations of the present application are described in the following by using specific examples. The description of the above embodiments is only for assisting understanding of the technical solutions of the present application and the core ideas thereof. Those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not make the essence of the technical solutions depart from a range of the technical solutions of the embodiments of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202310270225.8 | Mar 2023 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2023/085718 | 3/31/2023 | WO |
