Display panel, driving method thereof and electronic device

By combining sub-pixels of different colors in a liquid crystal display and controlling the scanning strategy of the gate driving unit, the charging time is extended, the color shift problem in the three-gate driving architecture is solved, and the display quality is improved.

CN117496909BActive Publication Date: 2026-01-02HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202310270225.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-17
Publication Date
2026-01-02
Estimated Expiration
2043-03-17

AI Technical Summary

Technical Problem

Existing tri-gate driving architecture liquid crystal displays exhibit color shift when displaying monochrome or dual-color mixed images, resulting in a decrease in display quality.

Method used

By introducing different color sub-pixel combinations in the display panel and controlling certain gate driving units not to scan certain sub-pixels during the display phase of a specific frame, the charging time of other sub-pixels is extended, and the timing control module is used to adjust the scanning signal to optimize the charging process.

Benefits of technology

It improves color cast and enhances the quality of the displayed image, especially in monochrome or mixed-color images.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a display panel, a driving method thereof and an electronic device. The display panel comprises a data line, a first sub-pixel and a second sub-pixel arranged adjacently and connected to the same data line, and a first gate driving unit and a second gate driving unit connected to the first sub-pixel and the second sub-pixel respectively. In a display stage of a first type of frame, the second gate driving unit outputs a first effective scanning signal to control the second sub-pixel to be turned on and loaded with a second data voltage to emit light, and the first gate driving unit controls the first sub-pixel to be turned off, so as to increase the charging time of the second sub-pixel, thereby improving the color deviation phenomenon and improving the quality of the display picture.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to the manufacturing of display device, and specifically to a display panel and a driving method thereof, and an electronic device. BACKGROUND

[0002] As a currently widely used display, the liquid crystal display can adopt a three-gate driving architecture to reduce the number of data lines to 1 / 3 of that of a normal driving architecture, while increasing the number of scan lines to 3 times that of the normal driving architecture, so that the width and charging time of each gate pulse are also reduced to 1 / 3 of those of the normal driving architecture, considering the cost of data driving chip.

[0003] In the three-gate driving architecture, as shown in FIG. 1, R, G and B represent red, green and blue sub-pixels respectively. Figure 1 As can be seen from the figure, when displaying a monochrome picture or a mixed-color picture of two colors, the amplitude of the voltage transmitted by the data line (any one of D1, D2, D3 to Dn) is cyclically in a high-low change state, that is, a heavy load picture, resulting in a large power consumption of the source driving module and a reduced charging capacity of the data line; in addition, the opening duration of the pixel driving circuit controlled by the gate line (any one of G1, G2, G3 to Gn) is also compressed, resulting in an insufficient charging time of the pixel. Ultimately, the monochrome picture or the mixed-color picture of two colors has a color deviation phenomenon, reducing the quality of the display picture.

[0004] Therefore, the monochrome picture or the mixed-color picture of two colors in the existing three-gate driving architecture liquid crystal display has a color deviation phenomenon caused by the above reasons, which needs to be improved urgently. SUMMARY

[0005] The present application aims to provide a display panel and a driving method thereof, and an electronic device to improve the color deviation phenomenon in the monochrome picture or the mixed-color picture of two colors in the existing three-gate driving architecture liquid crystal display.

[0006] The present application provides a display panel, comprising:

[0007] a data line;

[0008] a first sub-pixel and a second sub-pixel, which are adjacently arranged and connected to the same data line, the color of the first sub-pixel being different from that of the second sub-pixel, the data line being used for sequentially transmitting a first data voltage and a second data voltage corresponding to the first sub-pixel and the second sub-pixel respectively;

[0009] a first gate driving unit and a second gate driving unit, which are respectively connected to the first sub-pixel and the second sub-pixel;

[0010] In the display stage of the first type of frame, the second gate driving unit outputs a first effective scanning signal to control the second sub-pixel to be turned on and loaded with the second data voltage to emit light, and the first gate driving unit controls the first sub-pixel to be turned off.

[0011] In an embodiment, in the display stage of the first type of frame, the first data voltage at least includes a first sub-data voltage, the first sub-data voltage being equal to the second data voltage, and the data line sequentially transmits the first sub-data voltage and the corresponding second data voltage when the second sub-pixel is turned on.

[0012] In an embodiment, further comprising:

[0013] a third sub-pixel, disposed adjacent to the second sub-pixel and connected to the same data line as the second sub-pixel, the third sub-pixel having a color different from the color of the first sub-pixel and the color of the second sub-pixel, the data line being configured to sequentially transmit the first data voltage, the second data voltage, and a third data voltage corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel disposed in succession, respectively;

[0014] a third gate driving unit connected to the third sub-pixel;

[0015] In the display stage of the first type of frame, after the second sub-pixel is turned on, the third gate driving unit outputs a second effective scanning signal to control the third sub-pixel to be turned on and loaded with the third data voltage, or the third gate driving unit controls the third sub-pixel to be turned off.

[0016] In an embodiment, a plurality of pixel units connected to the same data line are included, each pixel unit including the first sub-pixel, the second sub-pixel, and the third sub-pixel;

[0017] In the display stage of the first type of frame, the time period during which the third sub-pixel in the previous pixel unit is turned on does not intersect with the time period during which the data line transmits the first sub-data voltage corresponding to the first sub-pixel in the next pixel unit.

[0018] In an embodiment, in the display stage of the first type of frame, the first data voltage further includes a second sub-data voltage, the second sub-data voltage being equal to the third data voltage, and the data line sequentially transmits the third data voltage, the second sub-data voltage, and the first sub-data voltage corresponding to the third sub-pixel in the previous pixel unit being turned on and the first sub-pixel in the next pixel unit being turned off.

[0019] In an embodiment, there is a time interval between the end time of the third sub-pixel in the previous pixel unit being turned on and the start time of the second sub-pixel in the next pixel unit being turned on during the display stage of the first type of frame.

[0020] In an embodiment, a plurality of pixel units are connected to the same data line, each of the pixel units comprising the first sub-pixel, the second sub-pixel and the third sub-pixel.

[0021] During the display stage of the first type of frame, the third data voltage comprises a third sub-data voltage and a fourth sub-data voltage, and the absolute value of the difference between the third sub-data voltage and the second data voltage corresponding to the same pixel unit is greater than the absolute value of the difference between the fourth sub-data voltage and the second data voltage, and the data line sequentially transmits the third sub-data voltage and the fourth sub-data voltage when the third sub-pixel is turned on.

[0022] In an embodiment, a plurality of pixel units are connected to the same data line, each of the pixel units comprising the first sub-pixel, the second sub-pixel and the third sub-pixel.

[0023] During the display stage of the first type of frame, the third gate drive unit controls the third sub-pixel to be turned off, and the third data voltage comprises at least a fifth sub-data voltage, and the fifth sub-data voltage corresponding to the same pixel unit is equal to the second data voltage, and the data line sequentially transmits the second data voltage and the corresponding fifth sub-data voltage when the second sub-pixel is turned on and the third sub-pixel is turned off.

[0024] In an embodiment, the same data line is connected to a plurality of first sub-pixels and a plurality of second sub-pixels, and the data line is used to sequentially transmit the first data voltage and the second data voltage.

[0025] During the display stage of the first type of frame, a plurality of second gate drive units respectively output a plurality of corresponding first effective scanning signals to control a plurality of second sub-pixels to be sequentially turned on and respectively loaded with a plurality of corresponding second data voltages to emit light, and each first gate drive unit controls a corresponding first sub-pixel to be turned off.

[0026] In an embodiment, further comprising:

[0027] a timing control module connected to the first gate drive unit and the second gate drive unit.

[0028] In the display stage of the first type of frame, the timing control module transmits an effective clock signal to the second gate driving unit, so that the second gate driving unit outputs the first effective scanning signal, the timing control module transmits an ineffective clock signal to the first gate driving unit, so that the first gate driving unit outputs an ineffective scanning signal to the first sub-pixel, or the timing control module is disconnected with the first gate driving unit, so that the first gate driving unit is disconnected with the first sub-pixel.

[0029] In an embodiment, in the display stage of the second type of frame, the first gate driving unit outputs a third effective scanning signal to control the first sub-pixel to be turned on and load the first data voltage to emit light, and the second gate driving unit outputs the first effective scanning signal to control the second sub-pixel to be turned on and load the second data voltage to emit light.

[0030] The application also provides a driving method of the display panel, for driving the display panel as described in any of the above, comprising:

[0031] In the display stage of the first type of frame, the second gate driving unit is controlled to output the first effective scanning signal to control the second sub-pixel to be turned on, and the second data voltage is controlled to be loaded to the second sub-pixel, so that the second sub-pixel emits light.

[0032] In the display stage of the first type of frame, the first gate driving unit is controlled to control the first sub-pixel to be turned off.

[0033] In an embodiment, the display panel further comprises a timing control module connected to the first gate driving unit and the second gate driving unit.

[0034] In the display stage of the first type of frame, the first gate driving unit is controlled to control the first sub-pixel to be turned off.

[0035] In the display stage of the first type of frame, the timing control module is controlled to transmit an ineffective clock signal to the first gate driving unit, so that the first gate driving unit outputs an ineffective scanning signal to the first sub-pixel, or the timing control module is controlled to be disconnected with the first gate driving unit, so that the first gate driving unit is disconnected with the first sub-pixel.

[0036] The application also provides an electronic device comprising the display panel as described in any of the above.

[0037] The application provides a display panel and a driving method thereof and an electronic device, in a display stage of a first type of frame, a first gate driving unit is controlled to control a first sub-pixel to be turned off (i.e. not to be scanned), that is, it can be considered that the first sub-pixel and the second sub-pixel are sequentially scanned in the same time is changed into at least the first sub-pixel can not be scanned in the same time, relatively, the time length of scanning the second sub-pixel can be prolonged, that is, the time originally required for scanning the first sub-pixel is utilized, so that the charging time length of the second sub-pixel can be increased, the color deviation phenomenon is improved, and the quality of a display picture is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] The application will be further described below with reference to the drawings. It should be noted that the drawings in the following description are only used to explain some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0039] Figure 1 A top view of a display panel with three gate driving provided by an embodiment of the application.

[0040] Figure 2 Another top view of a display panel with three gate driving provided by an embodiment of the application.

[0041] Figure 3 And Figure 4 Waveform diagrams of scanning signals of two display panels provided by embodiments of the application.

[0042] Figures 5 to 8 , Figure 10 Waveform diagrams of data signals of five display panels provided by embodiments of the application.

[0043] Figure 9 A flowchart of a driving method of a display panel provided by an embodiment of the application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0045] In the description of the present application, the terms "first", "second", etc. are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or an implied indication of the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In addition, it should be noted that the drawings provided are only relatively close to the structures of the present application, and some details that are not closely related to the application are omitted, the purpose is to simplify the drawings and make the invention points clear, and not to indicate that the actual device is exactly the same as the drawings Figure 1 The "equal to" mentioned in the present application can mean but not limited to that the two are equal, and can also mean that the difference between the two is very small, for example, the absolute value of the difference between the two is less than a threshold value, which can be set according to the actual situation, and it is intended to indicate that there is such a concept of "equal to". In particular, the "previous pixel unit" and "next pixel unit" mentioned in the present application can be understood as corresponding to two data voltages in the two adjacent pixel units, respectively.

[0046] The phrase "embodiment" mentioned in this paper means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at different positions in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] The present application provides a display panel, which can include but not limited to the following embodiments and combinations of the following embodiments.

[0048] In an embodiment, in conjunction with Figures 2 to 8 As shown, the display panel 100 includes a data line 10; a first sub-pixel 201 and a second sub-pixel 202 are arranged adjacent to each other and connected to the same data line 10, the color of the first sub-pixel 201 and the color of the second sub-pixel 202 are different, and the first sub-pixel 201 and the second sub-pixel 202 are connected to the same data line 10. Figures 5 to 8The data line 10 is used for sequentially transmitting first data voltage VB and second data voltage VG corresponding to the first sub-pixel 201 and the second sub-pixel 202 respectively; a first gate driving unit 301 and a second gate driving unit 302 are connected to the first sub-pixel 201 and the second sub-pixel 202 respectively; wherein in the display stage of the first type of frame, the second gate driving unit 302 outputs a first effective scanning signal gate1 to control the second sub-pixel 202 (green sub-pixel G) to be turned on, and the second data voltage VG controls the second sub-pixel 202 to emit light, and the first gate driving unit 301 controls the first sub-pixel 201 (blue sub-pixel B) to be turned off.

[0049] Wherein, the display stage of the first type of frame can be understood as a time period in which the first type of frame is displayed and a plurality of sub-pixels in different rows are sequentially scanned to control the plurality of sub-pixels to be turned on. If each data line 10 is connected with the first sub-pixel 201 (blue sub-pixel B) and the second sub-pixel 202 (green sub-pixel G) arranged in a cycle, as shown in Figure 2 and Figure 3 It can be considered that the first sub-pixel 201 and the second sub-pixel 202 in each cycle are turned on for a time period T0, and the first sub-pixel 201 and the second sub-pixel 202 in all "cycles" are turned on for a time period of several T0.

[0050] Wherein, "the first gate driving unit 301 controls the first sub-pixel 201 (blue sub-pixel B) to be turned off" can be understood as not scanning the first sub-pixel 201 (blue sub-pixel B), that is, no time period needs to be allocated for scanning the first sub-pixel 201 in T0.

[0051] The display panel 100 may include multiple sub-pixels, and the multiple sub-pixels may include at least a first sub-pixel 201 and a second sub-pixel 202 of different colors. For ease of description, this invention will only be described with an example of multiple sub-pixel arrays arranged such that sub-pixels in the same column are connected to the same data line 10, sub-pixels in the same row are connected to the same gate driving unit 30, and the first sub-pixel 201 and the second sub-pixel 202 are respectively a blue sub-pixel B and a green sub-pixel G. However, the above configuration is not limited to this. Furthermore, sub-pixels located in the same row can be electrically connected to the corresponding gate driving unit 30 through the same gate line 40. For example, the first gate driving unit 301 and the second gate driving unit 302 can be electrically connected to the blue sub-pixel B and the green sub-pixel G of the corresponding row through the corresponding first gate line G4 and the corresponding second gate line G5, respectively. The gate line 40 can transmit the scan signal generated by the corresponding gate driving unit 30 to the sub-pixel of the corresponding row. If the scan signal is the corresponding valid scan signal, the sub-pixel of the corresponding row can be turned on, that is, the multiple transistors corresponding to the sub-pixel of the corresponding row can be turned on, so that the multiple sub-pixels of the row can be loaded with the corresponding data voltage through multiple data lines 10, thereby emitting light and presenting the corresponding brightness.

[0052] Specifically, for ease of description, it can be assumed that data line 10 transmits multiple data voltages corresponding to multiple sub-pixels sequentially from bottom to top, 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 transmitted sequentially by data line 10 can be located in the row above and the row below each other, respectively. Figure 2 The blue sub-pixel B is located in row 4, and the green sub-pixel G is located in row 5.

[0053] It is understood that the display panel 100 in this embodiment has at least a display stage of a first type of frame. In this stage, the second sub-pixel 202 is controlled to emit light based on the second data voltage VG. The first gate driving unit 301 does not scan the first sub-pixel 201, and the second gate driving unit 302 outputs a first valid scanning signal to control the second sub-pixel 202 to turn on. That is, it can be considered that in the same time, the sequential scanning of the first sub-pixel 201 and the second sub-pixel 202 is changed to at least not scanning the first sub-pixel 201 in the same time. Relatively speaking, the scanning time of the second sub-pixel 202 can be extended, that is, the time originally required to scan the first sub-pixel 201 is utilized, thereby increasing the charging time of the second sub-pixel 202, improving the color shift phenomenon, and improving the quality of the display screen.

[0054] It should be noted that in the embodiment, only the first sub-pixel 201 is not scanned by the first gate driving unit 301 in the display stage of the first type of frame, but it can be considered that the data line 10 still transmits the first data voltage VB and the second data voltage VG in turn, and at least the second data signal is transmitted by the data line to act on the second sub-pixel 202 at least in the second sub-pixel 202 opening time period.

[0055] In an embodiment, based on Figures 2 to 4 As shown in the figure, the display panel 100 further comprises a timing control module connected to the first gate driving unit 301 and the second gate driving unit 302; wherein in the display stage of the first type of frame, the timing control module transmits an effective clock signal to the second gate driving unit 302 to make the second gate driving unit 302 output the first effective scanning signal gate1, and transmits an ineffective clock signal to the first gate driving unit 301 to make the first gate driving unit 301 output an ineffective scanning signal to the first sub-pixel 201, or the timing control module is disconnected with the first gate driving unit 301 to make the first gate driving unit 301 disconnected with the first sub-pixel 201.

[0056] It can be understood that in the embodiment, the first sub-pixel 201 can be not scanned by controlling the timing control module to transmit an ineffective clock signal to the first gate driving unit 301 to make the first gate driving unit 301 output an ineffective scanning signal to the first sub-pixel 201, and it can be understood that the corresponding effective pulse is not included in the ineffective scanning signal to realize not scanning the first sub-pixel 201; or the first sub-pixel 201 can be not scanned by controlling the timing control module to be disconnected with the first gate driving unit 301, for example, a switching element such as but not limited to a transistor can be arranged between the timing control module and the first gate driving unit 301 to control the pass and the disconnection between the timing control module and the first gate driving unit 301.

[0057] In an embodiment, based on Figure 2 As shown in the figure, in the display stage of the second type of frame, the first gate driving unit 301 outputs a third effective scanning signal to control the first sub-pixel 201 to open, and the first data voltage VB controls the first sub-pixel 201 to emit light, and the second gate driving unit 302 outputs the first effective scanning signal gate1 to control the second sub-pixel 202 to open, and the second data voltage VG controls the second sub-pixel 202 to emit light.

[0058] It should be noted that, in combination with the above discussion, the present application can improve the display stage of the first type of frame, which can be understood as a stage in which the theoretical luminous intensity of the second sub-pixel 202 differs greatly from the theoretical luminous intensity of the first sub-pixel 201 (0), thereby causing the second sub-pixel 202 located in the next row to have a color deviation risk; of course, there is also a display stage of the second type of frame, which can be understood as a stage in which the theoretical luminous intensity of the second sub-pixel 202 differs less from the theoretical luminous intensity of the first sub-pixel 201, thereby not causing the second sub-pixel 202 located in the next row to have a color deviation risk; at this time, the first sub-pixel 201 and the second sub-pixel 202 can be normally scanned in turn, and the first sub-pixel 201 and the second sub-pixel 202 can be controlled to emit light with corresponding luminance.

[0059] In an embodiment, referring to Figures 5 to 8 In the display stage of the first type of frame, the first data voltage VB at least includes a first sub-data voltage VB1, and the first sub-data voltage VB1 is equal to the second data voltage VG. When the second sub-pixel 202 is turned on, the data line 10 sequentially transmits the first sub-data voltage VB1 and the corresponding second data voltage VG. It can be understood that in this embodiment, the first data voltage VB is further limited to include the first sub-data voltage VB1 equal to the second data voltage VG in the display stage of the first type of frame, that is, when the second sub-pixel 202 is turned on, this embodiment can further set the first sub-data voltage VB1 close to the second data voltage VG in the first data voltage VB transmitted by the data line 10 to be equal to the second data voltage VG, so that the second data voltage VG acts on the second sub-pixel before the second sub-pixel 202 is turned on (i.e., before the second sub-pixel 202 is turned on). The data line 10 can transmit the first sub-data voltage VB1 equal to the second data voltage VG, reduce the signal attenuation amount of the second data voltage VG transmitted by the data line in the later period, and thereby improve the reliability of the light emission of the second sub-pixel 202.

[0060] In an embodiment, as Figure 2The display device further comprises: a third sub-pixel 203, which is arranged adjacent to the second sub-pixel 202 and is connected to the same data line 10 as the second sub-pixel 202, the third sub-pixel 203 has a color different from the color of the first sub-pixel 201 and the color of the second sub-pixel 202, and the data line 10 is used to sequentially transmit the first data voltage VB, the second data voltage VG, and the third data voltage VR corresponding to the first sub-pixel 201, the second sub-pixel 202, and the third sub-pixel 203 arranged in sequence; and a third gate driving unit 303 connected to the third sub-pixel 203; wherein in the display stage of the first type of frame, after the second sub-pixel 202 is turned on, the third gate driving unit 303 outputs a second effective scanning signal gate2 to control the third sub-pixel 203 (red sub-pixel R) to be turned on, and the third data voltage VR controls the third sub-pixel 203 to emit light or not to emit light, or the third gate driving unit 303 controls the third sub-pixel 203 to be turned off.

[0061] Similarly, the third gate driving unit 303 controls the third sub-pixel 203 to be turned off can also be understood as not scanning the third sub-pixel 203 (red sub-pixel R), that is, no time length needs to be allocated for scanning the third sub-pixel 203 in T0.

[0062] Similarly, for ease of description, the third sub-pixel 203 is taken as an example of a red sub-pixel R, 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 the upper row and the lower row of the second sub-pixel 202 (green sub-pixel G) respectively, for example Figure 2 The blue sub-pixel B is located in the 4th row, the green sub-pixel G is located in the 5th row, and the red sub-pixel R is located in the 6th row.

[0063] It can be understood that, in the display stage of the first type of frame, the second gate driving unit 302 outputs a first effective scanning signal to control the second sub-pixel 202 to be turned on, and on the basis that the first gate driving unit 301 does not scan the first sub-pixel 201, the embodiment further discloses that a red sub-pixel R is further arranged after the green sub-pixel G, but whether the third sub-pixel 203 (red sub-pixel R) is scanned in the display stage of the first type of frame is not limited.

[0064] Specifically, reference can be made to Figure 3 and Figure 4, based on not scanning the first sub-pixel 201 (it can be considered that at least the time length of scanning the first sub-pixel 201, that is, the width of the first pulse pl1 of the first effective scanning signal gate1 will increase, and whether the width of the second pulse pl2 of the second effective scanning signal gate2 increases is not limited), here taking scanning the third sub-pixel 203 (red sub-pixel R) as an example:

[0065] For example Figure 3 As shown in the display stage of the first type of frame, the first pulse pl1 in the first effective scanning signal gate1 for controlling the second sub-pixel 202 (green sub-pixel G) to be turned on and the second pulse pl2 in the second effective scanning signal gate2 for controlling the third sub-pixel 203 (red sub-pixel R) to be turned on can be separated by a first time t1; for example Figure 4 As shown in the display stage of the first type of frame, the first pulse pl1 in the first effective scanning signal gate1 for controlling the second sub-pixel 202 (green sub-pixel G) to be turned on and the second pulse pl2 in the second effective scanning signal gate2 for controlling the third sub-pixel 203 (red sub-pixel R) to be turned on can be separated by a first time t1; for example

[0066] Specifically, here taking the second data voltage VG as a larger value in the display stage of the first type of frame as an example for illustration: after the second sub-pixel 202 is turned on, the third sub-pixel 203 (red sub-pixel R) can also be turned on, such as Figures 5 to 7 As shown, the third data voltage VR controls the third sub-pixel 203 not to emit light (for example, the third data voltage VR is a smaller value), for example Figure 7 As shown, if the first data voltage VB is equal to the second data voltage VG, then the data line 10 sequentially transmits the equal and higher first data voltage VB and the second data voltage VG, and the lower third data voltage VR in the display stage of each first type of frame; as Figure 8 As shown, the third data voltage VR controls the third sub-pixel 203 to emit light (for example, the third data voltage VR is a larger value), then the data line 10 sequentially transmits the equal and higher first data voltage VB, the second data voltage VG and the third data voltage VR in the display stage of each first type of frame.

[0067] In an embodiment, the same data line 10 is connected with a plurality of the first sub-pixels 201 and a plurality of the second sub-pixels 202, and the data line 10 is used to sequentially transmit each first data voltage VB and corresponding second data voltage VG. In the display stage of the first type of frame, a plurality of the second gate driving units 302 respectively output a plurality of corresponding first effective scanning signals gate1 to control a plurality of the second sub-pixels 202 to be sequentially turned on and respectively loaded with corresponding second data voltages to emit light, and each first gate driving unit 301 controls the corresponding first sub-pixel 201 to be turned off (i.e. not scanned). As discussed above, it can be considered that the plurality of first sub-pixels 201 and the plurality of second sub-pixels 202 are alternately scanned at the same time, and the sequential scanning of the plurality of second sub-pixels 202 is changed, so that the time length of scanning each second sub-pixel 202 can be prolonged, the charging time length of the second sub-pixel 202 is increased, and the color cast phenomenon is improved.

[0068] Similarly, if the third sub-pixel 203 exists, and in the display stage of the first type of frame, a plurality of third gate driving units 303 also respectively output a plurality of corresponding second effective scanning signals gate2 to control a plurality of third sub-pixels 203 to be sequentially turned on, it can be considered that the plurality of pixel units 20 are sequentially scanned at the same time, and the first sub-pixel 201, the second sub-pixel 202 and the third sub-pixel 203 in each pixel unit 20 are sequentially scanned, and the second sub-pixel 202 and the third sub-pixel 203 in each pixel unit 20 are sequentially scanned, so that the time length of scanning each second sub-pixel 202 can be prolonged, the charging time length of the second sub-pixel 202 is increased, and the color cast phenomenon is improved.

[0069] In an embodiment, in combination with Figures 2 to 8 As shown, the display panel 100 includes a plurality of pixel units 20 connected to the same data line 10, and each pixel unit 20 includes the first sub-pixel 201, the second sub-pixel 202 and the third sub-pixel 203. In the display stage of the first type of frame, referring to Figure 3 and Figure 4 The time period (for example, the second pulse pl2 corresponding to the gate line G3, which should at least transmit the third data voltage VR) when the third sub-pixel 203 (the red sub-pixel R located in the third row) in the previous pixel unit 20 is turned on does not intersect with the time period when the data line 10 transmits the first sub-data voltage VB1 corresponding to the first sub-pixel 201 (the blue sub-pixel B located in the fourth row) in the next pixel unit 20.

[0070] It should be noted that during the display phase of the first type of frame, when the third sub-pixel 203 (the red sub-pixel R in the third row) in the previous pixel unit 20 is turned on and loaded with the corresponding third data voltage VR, and the corresponding third data voltage VR is not equal to the first sub-data voltage VB1, since the third data voltage VR in the previous pixel unit 20 and the first sub-data voltage VB1 in the next pixel unit transmitted by the data line 10 are adjacent and unequal, they are likely to interfere with the light emission brightness of each other's sub-pixels.

[0071] Specifically, this discussion is based on two adjacent pixel units 20. In conjunction with the above discussion, even if the first sub-pixel 201 is not scanned, the data line 10 still transmits the first data voltage VB. For example, the first data voltage VB corresponding to the first sub-pixel 201 (the blue sub-pixel B in the 4th row) includes at least a first sub-data voltage VB1 equal to the second data voltage VG. In this embodiment, the time period of the first sub-data voltage VB1 corresponding to the first sub-pixel 201 (the blue sub-pixel B in the 4th row) cannot coincide with the time period of the third sub-pixel 203 (the red sub-pixel R in the 3rd row) in the previous pixel unit 20. This can prevent the first sub-data voltage VB1 from being mistakenly charged to the third sub-pixel 203 (the red sub-pixel R in the 3rd row), causing the third sub-pixel 203 to fail to achieve the corresponding light emission or to not emit light.

[0072] In one embodiment, reference Figure 5 and Figure 10 As shown, during the display phase of the first type of frame, the first data voltage VB (e.g., but not limited to, corresponding to the next pixel unit 20) further includes a second sub-data voltage VB2, which is equal to the third data voltage VR. When the third sub-pixel 203 (the red sub-pixel R in the third row) in the previous pixel unit 20 is turned on, the data line 10 sequentially transmits the third data voltage VR and the second sub-data voltage VB2. Further, in conjunction with the above discussion, when the first sub-pixel 201 in the next pixel unit is turned off, the data line 10 sequentially transmits the third data voltage VR, the second sub-data voltage VB2, and the first sub-data voltage VB1.

[0073] Specifically, such as Figure 10 As shown, taking the third data voltage VR corresponding to the previous pixel unit 20 as a "lower voltage" and the second data voltage VG corresponding to the next pixel unit as a "higher voltage" as an example, then the second sub-data voltage VB2 and the first sub-data voltage VB1 in the first data voltage VB are also "lower voltage" and "higher voltage," respectively. Furthermore, for example... Figure 5As shown, the time length of the second sub-data voltage VB2 and the first sub-data voltage VB1 in the first data voltage VB can be equal, and for example Figure 10 As shown, the time length of the second sub-data voltage VB2 and the first sub-data voltage VB1 in the first data voltage VB can also be unequal, and here only the former is less than the latter is exemplified.

[0074] It can be understood that in the embodiment, the first data voltage VB is also set to include the second sub-data voltage VB2 corresponding to the next pixel unit 20, and when the third sub-pixel 203 (the red sub-pixel R located in the third row) in the same pixel unit 20 is turned on, the data line 10 will also transmit the second sub-data voltage VB2 included in the first data voltage VB after transmitting the corresponding third data voltage VR. Similarly, the data line 10 can also transmit the second sub-data voltage VB2 equal to the third data voltage VR after the third data voltage VR acts on the third sub-pixel 203, so as to maintain the second sub-data voltage VB2 equal to the third data voltage VR to continue to act on the third sub-pixel 203, make up for the signal attenuation amount of the third data voltage VR transmitted by the data line 10 in the early stage, thereby improving the reliability of the light emission of the third sub-pixel 203.

[0075] In an embodiment, in combination with Figure 2 and Figure 3 As shown, in the display stage of the first type of frame, there is a time interval between the end time when the third sub-pixel 203 (the red sub-pixel R located in the third row, corresponding to the gate line G3) in the previous pixel unit 20 is turned on and the start time when the second sub-pixel 202 (the green sub-pixel G located in the fifth row, corresponding to the gate line G5) in the next pixel unit 20 is turned on. Specifically, as shown Figure 3 As shown, in combination with the above discussion, the second pulse pl2 (for example, corresponding to the red sub-pixel R located in the third row) and the first pulse pl1 (for example, corresponding to the green sub-pixel G located in the fifth row) arranged adjacent to each other in the adjacent two pixel units 20 are set to have a time interval in the embodiment, that is, a blanking time period of scanning is arranged between the adjacent two (rows) pixel units 20 (the time interval between the second pulse pl2 and the first pulse pl1), for example, the data line 10 can transmit the first sub-data voltage VB1 mentioned above in the blanking time period, on the basis of reducing the signal attenuation amount of the second data voltage VG transmitted by the data line in the later stage, thereby reducing the risk of the first sub-data voltage VB1 being mistakenly charged to the third sub-pixel 203 (the red sub-pixel R located in the third row).

[0076] In an embodiment, based on Figure 2As shown, the display panel 100 includes a plurality of pixel units 20 connected to the same data line 10. In the display stage of the first type of frame, the data line 10 sequentially transmits the second data voltage VG corresponding to the second sub-pixel 202 and the third data voltage VR corresponding to the third sub-pixel 203. Figure 6 The third data voltage VR in the third sub-pixel 203 (red sub-pixel R) includes a third sub-data voltage and a fourth sub-data voltage (not shown). The difference (absolute value) between the third sub-data voltage corresponding to the same pixel unit and the second data voltage VG corresponding to the previous pixel unit 20 is greater than the difference (absolute value) between the fourth sub-data voltage and the second data voltage VG. When the third sub-pixel 203 is turned on, the data line 10 sequentially transmits the third sub-data voltage and the fourth sub-data voltage.

[0077] It can be understood that in the embodiment, the third data voltage VR corresponding to the third sub-pixel 203 (red sub-pixel R) is set to sequentially include a third sub-data voltage and a fourth sub-data voltage. The difference (absolute value) between the third sub-data voltage corresponding to the same pixel unit and the second data voltage VG corresponding to the previous pixel unit 20 is greater than the difference (absolute value) between the fourth sub-data voltage and the second data voltage VG. The third data voltage VR transmitted by the data line 10 can overdrive the third sub-pixel 203 before the fourth sub-data voltage arrives, reduce the signal attenuation of the third data voltage VR transmitted by the data line 10 at a later stage, and improve the reliability of the third sub-pixel 203 emitting light.

[0078] In an embodiment, based on Figure 2 As shown, in the display stage of the first type of frame, the third gate driving unit 303 controls the third sub-pixel 203 to be turned off (i.e., not to scan the third sub-pixel 203), and different from Figures 5 to 8 The third data voltage VR in the third sub-pixel 203 (red sub-pixel R) includes a third sub-data voltage and a fourth sub-data voltage (not shown). The difference (absolute value) between the third sub-data voltage corresponding to the same pixel unit and the second data voltage VG corresponding to the previous pixel unit 20 is greater than the difference (absolute value) between the fourth sub-data voltage and the second data voltage VG. When the third sub-pixel 203 is turned on, the data line 10 sequentially transmits the second data voltage VG and the fifth sub-data voltage corresponding to the third sub-pixel 203.

[0079] It can be understood that, since the third gate driving unit 303 does not scan the third sub-pixel 203, the second gate driving unit 302 outputs the first effective scanning signal to control the second sub-pixel 202 to be turned on, that is, it can be considered that the time length of scanning the second sub-pixel 202 at the same time can also include the time originally required for scanning the third sub-pixel 203, so that the charging time length of the third sub-pixel 203 can be increased to improve the color deviation phenomenon; further, in combination with the foregoing description of the second data voltage VB2, after the second data voltage VG acts on the second sub-pixel 202, the data line 10 can also transmit a fifth sub-data voltage equal to the second data voltage VG, which can make up for the signal attenuation amount of the second data voltage VG transmitted by the data line 10 in the early stage, thereby improving the reliability of the light emission of the second sub-pixel 202.

[0080] The application also provides an electronic device, which can include the display panel according to any one of the above.

[0081] The application also provides a driving method of a display panel, which is used for driving the display panel according to any one of the above. Figures 2 to 8 As shown in the above, Figure 9 may include but not limited to the following steps:

[0082] S1, in the display stage of the first type of frame, the second gate driving unit 302 (for example, corresponding to the gate line G2) is controlled to output the first effective scanning signal gate1 to control the second sub-pixel 302 (for example, corresponding to the green sub-pixel G located in the second row) to be turned on, and the second data voltage VG is controlled to be loaded to the second sub-pixel 202, so that the second sub-pixel 202 emits light;

[0083] S2, in the display stage of the first type of frame, the first gate driving unit 301 controls the first sub-pixel 201 to be turned off.

[0084] It can be understood that, in the display stage of the first type of frame, the first gate driving unit 301 is controlled not to scan the first sub-pixel 201, and the second gate driving unit 302 is controlled to output the first effective scanning signal to control the second sub-pixel 202 to be turned on, and in combination with the foregoing description, it can be known that the time length of scanning the second sub-pixel 202 can be prolonged, so that the charging time length of the second sub-pixel 202 can be increased to improve the color deviation phenomenon, and the quality of the display picture is improved.

[0085] In an embodiment, based on Figure 2As shown, the display panel 100 further comprises a timing control module connected to the first gate driving unit and the second gate driving unit; wherein the step S2 can comprise: S201, in the display stage of the first type of frame, controlling the timing control module to transmit an invalid clock signal to the first gate driving unit, so as to make the first gate driving unit output an invalid scanning signal to the first sub-pixel, or controlling the timing control module to be disconnected with the first gate driving unit, so as to make the first gate driving unit be disconnected with the first sub-pixel.

[0086] Specifically, as known from the above, in the display stage of the first type of frame, the first sub-pixel 201 can be not scanned by controlling the timing control module to transmit an invalid clock signal to the first gate driving unit 301, so that the first gate driving unit 301 outputs an invalid scanning signal to the first sub-pixel 201, or by controlling the timing control module to be disconnected with the first gate driving unit 301.

[0087] The present application provides a display panel and a driving method thereof, and an electronic device, in the display stage of the first type of frame, by controlling the first gate driving unit to control the first sub-pixel to be closed (i.e. not to scan the first sub-pixel), it can be considered that the first sub-pixel and the second sub-pixel are scanned in sequence in the same time is changed to at least the first sub-pixel can not be scanned in the same time, relatively, the time length of scanning the second sub-pixel can be prolonged, i.e. the time originally required for scanning the first sub-pixel is utilized, so that the charging time length of the second sub-pixel can be increased, to improve the color deviation phenomenon, and improve the quality of the display picture.

[0088] The display panel and the driving method thereof, and the electronic device provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples; the above embodiment is only used to help understand the technical solutions and the core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized by, The display panel comprises: a data line; a first sub-pixel and a second sub-pixel, which are adjacently arranged and connected to the same data line, the color of the first sub-pixel being different from the color of the second sub-pixel, the data line being used for sequentially transmitting a first data voltage and a second data voltage corresponding to the first sub-pixel and the second sub-pixel respectively; a first gate driving unit and a second gate driving unit, which are connected to the first sub-pixel and the second sub-pixel respectively; in a display stage of a first type of frame, the second gate driving unit outputs a first effective scanning signal to control the second sub-pixel to be turned on and loaded with the second data voltage to emit light, and the first gate driving unit controls the first sub-pixel to be turned off; in a display stage of a second type of frame, the first gate driving unit outputs a third effective scanning signal to control the first sub-pixel to be turned on and loaded with the first data voltage to emit light, and the second gate driving unit outputs the first effective scanning signal to control the second sub-pixel to be turned on and loaded with the second data voltage to emit light.

2. The display panel of claim 1, wherein, In the display stage of the first type of frame, the first data voltage at least comprises a first sub-data voltage, the first sub-data voltage being equal to the second data voltage, and when the second sub-pixel is turned on, the data line sequentially transmits the first sub-data voltage and the corresponding second data voltage.

3. The display panel of claim 2, wherein, Further comprising: a third sub-pixel, which is adjacently arranged with the second sub-pixel and connected to the same data line, the color of the third sub-pixel being different from the color of the first sub-pixel and the color of the second sub-pixel, the data line being used for sequentially transmitting the first data voltage, the second data voltage and a third data voltage corresponding to the first sub-pixel, the second sub-pixel and the third sub-pixel arranged in sequence; a third gate driving unit connected to the third sub-pixel; in the display stage of the first type of frame, after the second sub-pixel is turned on, the third gate driving unit outputs a second effective scanning signal to control the third sub-pixel to be turned on and loaded with the third data voltage, or the third gate driving unit controls the third sub-pixel to be turned off.

4. The display panel of claim 3, wherein, The display panel comprises a plurality of pixel units connected to the same data line, each pixel unit comprising the first sub-pixel, the second sub-pixel and the third sub-pixel; in the display stage of the first type of frame, the time period when the third sub-pixel in the previous pixel unit is turned on does not intersect with the time period when the data line transmits the first sub-data voltage corresponding to the first sub-pixel in the next pixel unit.

5. The display panel of claim 4, wherein, In the display stage of the first type of frame, the first data voltage further comprises a second sub-data voltage, the second sub-data voltage being equal to the third data voltage, and when corresponding to the turning on of the third sub-pixel in the previous pixel unit and corresponding to the turning off of the first sub-pixel in the next pixel unit, the data line sequentially transmits the third data voltage, the second sub-data voltage and the first sub-data voltage.

6. The display panel of claim 4, wherein, The third sub-pixel in the previous pixel unit is turned off at a time point, and the second sub-pixel in the next pixel unit is turned on at a starting time point, and there is a time interval between the two time points.

7. The display panel of claim 3 or 4, wherein, The display panel comprises a plurality of pixel units connected to the same data line, each of the pixel units comprising the first sub-pixel, the second sub-pixel and the third sub-pixel. In the display stage of the first type of frame, the third data voltage comprises a third sub-data voltage and a fourth sub-data voltage, and the absolute value of the difference between the third sub-data voltage and the second data voltage corresponding to the same pixel unit is greater than the absolute value of the difference between the fourth sub-data voltage and the second data voltage, and the data line sequentially transmits the third sub-data voltage and the fourth sub-data voltage when the third sub-pixel is turned on.

8. The display panel of claim 3, wherein, The display panel comprises a plurality of pixel units connected to the same data line, each of the pixel units comprising the first sub-pixel, the second sub-pixel and the third sub-pixel. In the display stage of the first type of frame, the third gate drive unit controls the third sub-pixel to be turned off, and the third data voltage comprises at least a fifth sub-data voltage, and the fifth sub-data voltage corresponding to the same pixel unit is equal to the second data voltage, and the data line sequentially transmits the second data voltage and the corresponding fifth sub-data voltage when the second sub-pixel is turned on and the third sub-pixel is turned off.

9. The display panel of claim 1 or 2, wherein, The same data line is connected to a plurality of first sub-pixels and a plurality of second sub-pixels, and the data line is used to sequentially transmit the first data voltage and the second data voltage. In the display stage of the first type of frame, a plurality of second gate drive units respectively output a plurality of first effective scan signals corresponding to the plurality of second sub-pixels to control the plurality of second sub-pixels to be sequentially turned on and loaded with corresponding second data voltages to emit light, and each first gate drive unit controls the corresponding first sub-pixel to be turned off.

10. The display panel of claim 1 or 2, wherein, Further comprising: a timing control module connected to the first gate drive unit and the second gate drive unit; In the display stage of the first type of frame, the timing control module transmits an effective clock signal to the second gate drive unit to make the second gate drive unit output the first effective scan signal, the timing control module transmits an ineffective clock signal to the first gate drive unit to make the first gate drive unit output an ineffective scan signal to the first sub-pixel, or the timing control module is disconnected from the first gate drive unit to make the first gate drive unit disconnected from the first sub-pixel.

11. A driving method of a display panel, characterized by, A display panel as claimed in any one of claims 1 to 10, comprising: In the display stage of the first type of frame, the second gate drive unit is controlled to output the first effective scan signal to control the second sub-pixel to be turned on, and the second data voltage is loaded to the second sub-pixel to make the second sub-pixel emit light; In the display stage of the first type of frame, the first gate drive unit is controlled to control the first sub-pixel to be turned off.

12. The driving method of a display panel according to claim 11, wherein The display panel further comprises a timing control module connected to the first gate driving unit and the second gate driving unit; The step of controlling the first gate driving unit to control the first sub-pixel to be turned off in the display stage of the first type of frame comprises: In the display stage of the first type of frame, the timing control module is controlled to transmit an invalid clock signal to the first gate driving unit, so that the first gate driving unit outputs an invalid scanning signal to the first sub-pixel, or the timing control module is controlled to be disconnected with the first gate driving unit, so that the first gate driving unit is disconnected with the first sub-pixel.

13. An electronic device, comprising: The display panel as claimed in any one of claims 1 to 10.

Citation Information

Patent Citations

  • Three-grating type display panel

    CN104299559A

  • Multiplex type driving circuit and driving method, and display equipment

    CN108615495A