WO2020056739A1

WO2020056739A1 - Display device and display driving method therefor

Info

Publication number: WO2020056739A1
Application number: PCT/CN2018/107044
Authority: WO
Inventors: 郭星灵; 张肖; 谭小平
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-09-21
Filing date: 2018-09-21
Publication date: 2020-03-26
Also published as: CN112639945A

Abstract

A display device (10, 30, 50) and a display driving method therefor. A display panel (11, 31, 51) of the display device (10, 30, 50) comprises a plurality of adjustment regions (110, 510) arranged in parallel in a first direction (F1). The display driving method comprises: adjusting a plurality of image data items provided to the respective adjustment regions (110, 510) to be displayed, and outputting the adjusted image data items to the corresponding adjustment regions (110, 510); or the method comprises: supplying, to each adjustment region (110, 510), driving voltages (ELVDD) in two opposite sub-directions of a second direction (F2), the second direction (F2) being perpendicular to the first direction (F1).

Description

Display device and display driving method thereof

Technical field

The invention relates to the technical field of display driving, in particular to a display device and a display driving method thereof.

Background technique

Please refer to FIG. 1, which is a schematic diagram of a transmission method of an electroluminescent voltage device (ELVDD) of an existing organic light-emitting diode (OLED) display device. The ELVDD is generated by the power driver 5 (Power IC) and then divided into multiple channels in parallel outside the plane. The power driver 5 transmits from the near to the far along the direction in which the power line 6 is arranged. 7 The data voltage Vdara corresponding to the image data transmitted drives the organic light emitting diode to emit light to perform image display.

However, in the actual driving process of such a driving architecture, there is a phenomenon of uneven brightness, especially the brightness of the display area adjacent to the power driver 5 is higher than the brightness of the display area far from the voltage chip 5, so that As a result, the image displayed on the display panel is not good and affects the visual experience of the user.

Summary of the Invention

In order to solve the above problems, an embodiment of the present invention discloses a display device capable of improving display effect and a display driving method thereof.

A display driving method of a display device. The display panel of the display device includes a plurality of adjustment areas, the plurality of adjustment areas are arranged side by side in a first direction, and the display driving method includes: providing a plurality of adjustment areas to the display area; The image data to be displayed in each adjustment area is adjusted, and the adjusted image data is output to the corresponding adjustment area.

A display driving method of a display device. The display panel of the display device includes a plurality of adjustment regions. The plurality of adjustment regions are arranged side by side in a first direction. The display driving method includes:

The driving voltage is provided to two opposite sub-directions in each of the adjustment regions along a second direction, the second direction being perpendicular to the first direction.

A display device includes a display panel for image display, a data driver and a power driver provided on one side of the display panel, the display panel includes a plurality of adjustment regions, and the plurality of adjustment regions are juxtaposed along a first direction. Arrangement, the data driver is configured to provide the display panel with image data for image display along the first direction,

The display device further includes a processing module for adjusting a plurality of image data to be displayed provided to each of the adjustment regions, and the processing module is configured to pass the adjusted image data through the data. The driver outputs to the corresponding adjustment region.

A display device includes a display panel for image display, a data driver and a power driver provided on one side of the display panel, the display panel includes a plurality of adjustment regions, and the plurality of adjustment regions are along The first direction is arranged side by side, and the data driver is configured to provide the display panel with image data for image display along the first direction,

The power driver provides the driving voltage to two opposite sub-directions along a second direction in each of the adjustment regions, the second direction being perpendicular to the first direction.

The invention provides a display device and a display driving method. Since the processing module adjusts the display panel sub-adjustment regions, the brightness difference of each area of the display panel is improved, and the display effect of the display panel is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings according to the drawings without paying creative labor.

FIG. 1 is a schematic block diagram of a conventional OLED display device.

FIG. 2 is a functional block diagram of a display device according to a first embodiment of the present invention.

FIG. 3 is a schematic diagram of a region of a display device.

Figure 4 is a functional block diagram of a timing controller.

FIG. 5 is a schematic block diagram of a search unit.

FIG. 6 is a gray scale diagram before and after adjustment of each adjustment region.

FIG. 7 is a schematic diagram showing a relationship between an initial grayscale value and an adjusted grayscale value according to another embodiment of the present invention.

FIG. 8 is a functional block diagram of a display device according to a second embodiment of the present invention.

FIG. 9 is a schematic block diagram of a processing module.

FIG. 10 is a schematic diagram of a gamma architecture.

FIG. 11 is a schematic diagram of a gamma reference voltage corresponding to each adjustment region of a display panel according to an embodiment.

FIG. 12 is a schematic diagram showing a relationship between an analog signal voltage and a grayscale value in an embodiment.

FIG. 13 is a schematic diagram showing a relationship between a grayscale value and brightness in an embodiment.

14 is a schematic plan view of a display device according to a fourth embodiment of the present invention.

15 is a flowchart of a display driving method of a display device according to a third embodiment of the present invention.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Regarding the problem of uneven brightness in the image display of the OLED display device shown in FIG. 1, after in-depth research, it is found that even if the image data voltage Vdara is accurately transmitted to each pixel unit, it is not the image data voltage The influence of Vdata transmission factors, so when analyzing from another perspective of the driving voltage ELVDD, it is found that, because the driving voltage ELVDD of the initial state output by the power driver 5 is transmitted unidirectionally on the power line, then with the As the distance of the power driver 5 increases, the resistance on the power line 6 also gradually increases, which causes the driving voltage ELVDD to decrease continuously as the transmission distance on the power line 6 increases, even on the premise that the image data voltage Vdara is completely accurate Next, as the distance from the voltage chip 5 increases, the voltage difference between the data voltage Vdara and the driving voltage ELVDD becomes smaller and smaller, and then the brightness of the OLED light-emitting element is gradually reduced, so as to finally find the effect on the display panel. The root cause of uneven brightness and poor display.

In order to solve the foregoing technical problem, this embodiment provides a display device. The display device includes a display panel for image display, a data driver and a power driver provided on one side of the display panel. The display panel includes a plurality of An adjustment area, wherein a plurality of the adjustment areas are arranged side by side along a first direction, and the data driver is configured to provide the display panel with image data for image display along the first direction, and the display device further includes A processing module for adjusting a plurality of image data provided to each of the adjustment regions, and a processing module for outputting the adjusted image data to the corresponding adjustment region through the data driver Or, the power driver provides the driving voltage to two opposite sub-directions along a second direction in each of the adjustment regions, the second direction being perpendicular to the first direction.

Please refer to FIG. 2, which is a functional block diagram of a display device 10 according to a first embodiment of the present invention.

As shown in FIG. 2, the display device 10 includes a display panel 11, a timing controller 13, a data driver 15, a scan (gate) driver 17, and a power driver 19. The timing controller 13, the data driver 15, the scan driver 17, and the power driver 19 may be disposed independently of the display panel 11, or may be directly disposed in a non-display area (not labeled) at a peripheral position of the display panel 11.

The display panel 11 is provided with a plurality of pixel units PX arranged in an array. At the same time, the display panel 11 further includes a data line D (source line D) extending along the first direction F1 and arranged at a first distance along the second direction F2. , Scanning lines G (gate lines G) extending along the second direction F2 and arranged at a second distance along the first direction F1, and power lines 114 parallel to each scanning line G and corresponding to one to one. That is, the first direction F1 is an extending direction of the data line D in the display panel 11. The second direction F2 is an extending direction of the power line 114 and the scanning line G of the display panel 11. Each pixel unit PX is located in an area formed by two adjacent scanning lines G and data lines D, and each pixel unit PX is connected to one scanning line G, one data line D, and one power line 114.

The timing controller 13 is used to control the working timing of the data driver 15, the scan driver 17 and the power driver 19 and to provide image data to be displayed to the data driver 15.

The data driver 15 is disposed on one side of the display panel 11. The data driver 15 provides image data to the pixel unit PX along the first direction F1.

The scan driver 17 is configured to sequentially scan a plurality of scan lines G according to a timing signal under the control of the timing controller 13. During a scan corresponding to one scan line G, the data driver 15 provides a data voltage V _data corresponding to image _data to all data lines D The power driver 19 provides a driving voltage ELVDD to a row of pixel units PX electrically connected to the scan line G and the power line 114 under the voltage control signal provided by the timing controller 13, so that the row of pixel units PX is at the data voltage V. _{Data is} displayed with the driving voltage ELVDD.

It should be noted that the driving voltages provided by the power supply driver 19 to all the power supply lines 114 and all the pixel units PX are the same.

Please refer to FIG. 3, which is a schematic diagram of a planar structure for providing image data by partitioning the display panel 11 shown in FIG. 2 in the first embodiment.

As shown in FIG. 3, the display panel 11 includes a plurality of adjustment regions 110. The adjustment region 110 is divided in such a manner as to be arranged side by side along the first direction F1. Among them, a plurality of adjustment regions 110 are recorded from the data driver 15 along the first direction F1 from near to far as region 1, region 2 ... region (n-1), and region n, where n is greater than 1. Integer. In other words, the distances of the plurality of adjustment regions 110 with respect to one side of the display panel 11 along the first direction F1 gradually increase.

In this embodiment, each adjustment region 110 includes at least one row of pixel units PX along the second direction F2.

Referring to FIG. 4, the timing controller 13 includes a processing module 131 for adjusting a plurality of image data provided to each of the adjustment regions 110, and outputting the adjusted image data to a corresponding adjustment region via the data driver 15. 110.

More specifically, the timing controller 13 further includes a registration module 133 for storing the lookup table 135 (as shown in FIG. 5). The lookup table 135 includes a plurality of lookup units (as shown in FIG. 5). The registration module 133 stores each search unit in correspondence with an arrangement position of an adjustment area 110. The multiple search units include a search unit 1 (LUT1), a search unit 2 (LUT2), ..., a search unit (n-1) (LUT (n-1)), and a search unit n (LUTn). Wherein, the search unit 1 corresponds to area 1, the search unit 2 corresponds to area 2 ..., the search unit (n-1) corresponds to area (n-1), and the search unit n corresponds to area n.

The processing module 131 is configured to adjust a plurality of image data provided to each adjustment area 110 according to a search unit corresponding to each adjustment area 110 of the display panel 11, and output the adjusted image data to the corresponding adjustment through the data driver 15. Area 110.

In this embodiment, the search unit includes a correspondence between each initial grayscale value corresponding to the image data of the adjustment area 110 and the corresponding adjusted grayscale value. According to the display effect, the display panel 11 is divided into n adjustment regions 110. Adjust and change the grayscale value of each pixel unit PX of each adjustment area 110 according to the preset target brightness value corresponding to the initial grayscale value of the image data of each adjustment area 110 (including each pixel unit PX in the adjustment area 110). A corresponding adjusted grayscale value is generated, and a corresponding relationship between each initial grayscale value of each adjustment region 110 and its adjusted grayscale value is recorded to generate a search unit.

You can use the brightness of a certain adjustment area 110 as a standard (set this area as the standard brightness area) to adjust the initial grayscale value of each adjustment area 110 so that the adjusted brightness of each adjustment area 110 is in line with the standard brightness area. The grayscale brightness is the same, and the grayscale correspondence before and after the adjustment is the search unit, which is used for subsequent adjustment compensation.

An example is described below. Referring to FIG. 6, the grayscale brightness of the initial grayscale value 255 in the image data of the farthest adjustment region 110 (area n in FIG. 6) is used as the preset target brightness value. The processing module 131 adjusts and changes a gray level with an initial gray level value of 255 in the image data of the other adjustment areas 110 according to the preset target brightness value. Among them, the initial grayscale value 255 in the image data of the adjustment area 110 (area (n-1)) adjacent to the area n is adjusted to the adjusted grayscale value 254... The driver 15 adjusts the initial grayscale value 255 in the image data of the area 110 (area 1 in FIG. 6) closer to the adjusted grayscale value 245. In this way, after adjustment, the display brightness of the initial grayscale value 255 in the image data of each adjustment area 110 is adjusted to be consistent with the grayscale brightness of the initial grayscale value 255 in the image data of the farthest adjustment area 110, that is, each After the image data of the adjustment region 110 is adjusted, in the case of the same initial grayscale value, the adjusted grayscale values are different, but the display brightness is the same. Thus, the difference in display brightness of each adjustment region 110 of the display panel 11 is reduced. Obviously, except for the area n, the initial grayscale value of the image data of the remaining adjustment area 110 is 255, and the adjusted grayscale value after adjustment is smaller than the initial grayscale value. It should be noted that the pixel unit PX with an initial grayscale value of 255 of the image data of each adjustment region 110 is described here as an example, and the pixel units PX whose initial grayscale values are other grayscale values are adjusted in a similar manner.

In an embodiment, FIG. 7 is a map of grayscale values before and after adjustment in a search unit corresponding to one of the adjustment regions 110, where the horizontal axis is the initial grayscale value and the vertical axis is the adjusted grayscale value. For example, if the initial grayscale value of a pixel unit PX is A1 (0≤A1≤255), then the adjusted grayscale value of the pixel unit PX is B1 (0≤B1≤255). Obviously, after correction and compensation, B1> A1.

The data driver 15 is configured to output the adjusted image data to the corresponding adjustment area 110. The processing module 131 obtains an adjusted grayscale value corresponding to each initial grayscale value of the image data, and the adjusted grayscale value is used as the adjustment data voltage (V _{data_out} ) corresponding to the adjustment region 110. The data driver 15 applies the adjustment data voltage to the data line D corresponding to the adjustment region 110. Please refer to FIG. 3 again, the adjustment data voltage of the facility added to the area 1 is V _{data (1) _out} , and the adjustment data voltage of the facility added to the area 2 is V _{data (2) _out} ......, the facility is added to the area The adjustment data voltage of _(n-1) is V _{data (n-1) _out} , and the adjustment data voltage of the facility n to the area n is V _{data (n) _out} .

The timing controller 13 sends timing signals to the data driver 15 and the scan driver 17 by receiving the start signals. The timing signal includes a plurality of continuous and periodically arranged pulses, wherein each pulse is scanned corresponding to a row of pixel units PX arranged along the first direction F1, and the number of the pulses represents the number of rows of the pixel units PX. The scan driver 17 is configured to apply to the scan line G according to a timing signal generated by the timing controller 13 to control the on and off of the thin film transistors of each row of the pixel units PX. The power driver 19 is configured to provide a driving voltage ELVDD to the pixel units PX of each row of the display panel 11 according to a power control signal transmitted from the timing controller 13.

The timing controller 13 further includes a counting module 137 (as shown in FIG. 4). The counting module 137 is configured to detect the number of pulses in the timing signal to determine the position of the adjustment region 110 corresponding to the current image data signal. When the data driver 15 applies the adjustment data voltage to the data line D of an adjustment region 110 of the display panel 11, if the number of pulses of the timing signal detected by the counting module 137 reaches the total number of pixels corresponding to the adjustment region 110, the processing module 131 controls The search unit corresponding to the next adjustment area 110 is switched. In this embodiment, the number of pulses is obtained by counting the number of rising edges of the timing signal. In one embodiment, the number of pulses is obtained by counting the number of falling edges of the timing signal.

When the display panel 11 is lit, the timing controller 13 receives image data to be displayed. The processing module 131 adjusts and compensates the image data of each adjustment area 110 according to a search unit corresponding to each adjustment area 110. The data driver 15 sends the adjusted image data to the corresponding adjustment area 110. For example, in the process of lighting up the region 1 of the display panel 11, the data driver 15 applies the first adjustment data voltage _{Vdata (1) _out} to the region 1, and the counting module 137 detects that the number of rising edges of the timing signal reaches the region 1. When the total number of rows of the first pixel in the, the processing module 131 controls to switch to the search unit 2.

Since the processing module 131 adjusts and compensates the image data to be displayed according to the search unit corresponding to each adjustment region 110, the data driver 15 applies the adjustment data voltage of each adjustment region 110 to the data line D of each adjustment region 110. The adjustment data voltage is generated through compensation and correction, so the gate voltage (Vg) of the display panel 11 is the same as the adjustment data voltage, thereby improving the brightness difference of each adjustment region 110 of the display panel 11 and improving the display effect of the display panel 11 .

In order to facilitate the implementation of the embodiments of the present invention, the display device 10 further includes other necessary or non-essential structures and modules, such as a chip and a memory (which may include one or more computer-readable storage media). The chip may include: one or more processors and a power management module. These components can communicate on one or more communication buses.

It should be understood that the display device 10 is only one example of the present invention, and the display device 10 may have more or fewer parts than those shown, may combine two or more parts, or may have different parts. Configuration implementation.

The memory is coupled to the processor and is configured to store various software programs and / or multiple sets of instructions. In a specific implementation, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.

Please refer to FIG. 8, which is a display device 30 according to a second embodiment of the present invention. The display device 30 is substantially similar to the display device 10 provided in the first embodiment, except that the processing module 33 of the display device 30 performs gamma correction on the image data of each adjustment area (not shown), and each adjustment area (FIG. (Not shown) the corresponding gamma correction value is different, and changes monotonically as the distance from the adjustment area to the data driver increases. The monotonic change is that as the distance from the adjustment area to the data driver increases, the corresponding gamma correction value increases or decreases.

The processing module 33 is configured to obtain an initial grayscale value of the image data of each adjustment area according to a lookup table (not shown), and perform gamma correction on the initial grayscale value to generate an adjusted grayscale value, where the adjusted grayscale value is Adjusting the data voltage; outputting the adjusting data voltage to the corresponding adjustment region.

The registration module 35 is configured to store a lookup table, where the lookup table includes a plurality of lookup units, and each lookup unit corresponds to an adjustment area. The registration module 35 stores each search unit in correspondence with the arrangement position of an adjustment area. Referring to FIG. 9, the processing module 33 is configured to perform gamma correction on a plurality of image data provided to each adjustment region according to a search unit corresponding to each adjustment region. The initial grayscale value is adjusted to correspond to the adjusted grayscale value. . The initial value as the initial grayscale data voltage V _{aata (n)} _{_in,} gray level value of the adjustment as the adjustment data voltage V _{data (n) _out.} The processing module 33 provides the adjustment data voltage V _{data (n) _out} to the corresponding adjustment region.

In this embodiment, referring to FIG. 10, digital data (0, 1 ... 1023) of 10 bits (that is, 1024 gray scales) is converted into analog signal voltages (V0, V1 ... V1023) having a linear setting. ). Please refer to FIG. 11, the gamma correction value is a preset gamma reference voltage (VGMA), and each adjustment region corresponds to a preset gamma reference voltage.

Due to the need to perform gamma debugging, de-mura and other processing on display effects in practical applications, the present embodiment fully improves the gamma debugging effect and enhances the display panel 31 by performing regional gamma debugging compensation. The accuracy of image processing.

In one embodiment, referring to FIG. 12, gamma adjustment is performed on each adjustment region of the display panel 31 with the same target brightness. The lookup unit is a gamma table corresponding to the adjustment area.

In one embodiment, the gamma correction value is a gamma coefficient. Referring to FIG. 13, the search unit is generated by using different gamma coefficients corresponding to different display brightness differences of the adjusted areas of the front display panel 31.

Referring to FIG. 14, a fifth embodiment of the present invention provides a display device 50 including a display panel 51, a data driver 53, and a power driver 55. The display panel 51 is used for image display. The data driver 53 is disposed on one side of the display panel 51 and is configured to provide the display panel 51 with image data for image display along the first direction F1. The power driver 55 is provided on one side of the display panel 51 and is used to provide a driving voltage (ELVDD) to the display panel 51. The first direction F1 is an extending direction of a data line (not shown) in the display panel 51. The second direction F2 is an extending direction of a power line (not shown) of the display panel 51.

Specifically, the display panel 51 includes a display area 511 and a non-display area 513. The display area 511 includes a plurality of adjustment areas 510. The non-display area 513 is provided around the display area 511. The display panel 51 is provided with a plurality of regularly arranged pixel units (not shown) in the display area 511. In this embodiment, each adjustment region 510 is provided with at least two rows of pixel units. The data driver 53 is provided in the non-display area 513. It can be understood that the data driver 53 and the power driver 55 may be disposed on the non-display area 513, or may not be disposed on the display panel 51, and may be disposed on other structures of the display device 50. For example, the power driver 55 may be disposed on a flexible circuit board on.

The power supply driver 55 provides the driving voltage to two opposite sub-directions along the second direction in each of the adjustment regions 510, and the second direction F2 is perpendicular to the first direction F1.

The display panel 51 further includes a first end portion 515 and a second end portion 517 opposite to each other. The data driver 53 is disposed on the first end portion 515. The second direction F2 includes a first sub-direction and a second sub-direction opposite to the first sub-direction. In each of two adjacent adjustment regions 510, a driving voltage transmission direction provided to one adjustment region 510 is along In the first sub-direction, a transmission direction of the driving voltage provided to the other adjustment region 510 is along the second sub-direction. Wherein, the first sub-direction is that the first end portion 515 faces the second end portion 517, and the second sub-direction is that the second end portion 517 faces the first end portion 515.

The display device 50 further includes a first transmission line 57 and a second transmission line 58. The first transmission line 57 is extended from the power driver 55 to the first end portion 515 of the display panel 51, so as to provide a driving voltage to each adjustment region 510. The second transmission line 58 extends from the power driver 55 to the second end portion 517 of the display panel 51. In each adjacent two rows of pixel units of each adjustment region 510, the driving voltage of one row of pixel units is provided by the power driver 55 via the first transmission line 57, and the transmission direction of the driving voltage transmitted via the first transmission line 57 is the first One sub-direction; the driving voltage of the pixel units in the other row is provided by the power supply driver 55 by the second transmission line 58, and the transmission direction of the driving voltage transmitted through the second transmission line 58 is the second sub-direction.

In one embodiment, the transmission directions of the driving voltages transmitted to the adjacent two rows of pixel units in each adjustment region 510 are not limited, and the transmission directions of the driving voltages to at least one row of pixel units in the adjustment region 510 are opposite. The transmission direction is opposite to the driving voltage transmitted to the pixel units in other rows in the adjustment region 510.

When the display panel 51 is lit, the driving voltages provided to the pixel units of two adjacent rows adopt opposite transmission directions, thereby improving the brightness uniformity of the display panel 51 and improving the visual experience of the user.

In the display device 50 provided in this embodiment, since the power supply driver 55 provides the display panel 51 with two sets of driving voltages ELVDD in opposite directions, the two directions of the driving voltage ELVDD generate voltage drops in two directions (IR drop). The effect of the voltage drop in this direction on the display of the display panel 51 is uniformized in space, thereby achieving a uniform visual display, effectively reducing the influence of the line resistance on the display effect, and effectively improving the screen display effect.

Please refer to FIG. 15, a display driving method of a display device. A display panel of the display device includes a plurality of adjustment regions, and the plurality of adjustment regions are arranged side by side in a first direction. The display driving method includes the following steps:

Step 103: Adjust a plurality of image data to be displayed provided to each of the adjustment regions.

Step 105: Output the adjusted image data to the corresponding adjustment area.

In an embodiment, in step 103, the step of adjusting a plurality of image data to be displayed provided to each of the adjustment regions includes: each adjustment region corresponds to a search unit, and according to all the corresponding adjustment regions. The search unit adjusts the plurality of image data provided to each of the adjustment regions, wherein each search unit includes an adjusted grayscale value of each initial grayscale value of the corresponding adjustment region.

In an embodiment, before adjusting the plurality of image data to be displayed provided to each of the adjustment regions, that is, before step 103, the display driving method further includes: generating a search corresponding to each adjustment region in advance. unit.

In an embodiment, the pre-generating search unit corresponding to each adjustment region includes: adjusting and changing the initial grayscale value of each adjustment region according to a preset target brightness value corresponding to the initial grayscale value of the image data of each adjustment region; The corresponding adjusted grayscale value is recorded, and the corresponding relationship between the initial grayscale value and the adjusted grayscale value of each adjustment area is recorded to generate a search unit.

In one embodiment, for the plurality of adjustment regions distributed along the first direction, the plurality of image data provided to each of the adjustment regions are adjusted, and the adjusted image data is output to The corresponding adjustment region includes: obtaining a plurality of initial grayscale values corresponding to image data in each adjustment region; and obtaining an adjusted grayscale value corresponding to each initial grayscale value according to a search unit corresponding to each adjustment region. The adjusting the grayscale value as the adjustment data voltage, and the outputting the adjusted image data to the corresponding adjustment region includes: applying the adjustment data voltage to a data line of the corresponding adjustment region.

In an embodiment, the distances of the plurality of adjustment regions relative to the data driver provided on one side of the display panel are gradually increased along the first direction, and each adjustment region corresponds to a search unit, and according to each adjustment region The corresponding search unit adjusts the plurality of image data provided to each of the adjustment regions, wherein each search unit includes an adjusted grayscale value of each initial grayscale value of the corresponding adjustment region, The method includes: performing gamma correction on the image data of each adjustment area, and the gamma correction value corresponding to each adjustment area is different, and changes monotonically with the distance from the data driver of the display device.

In an implementation manner, performing gamma correction on the image data of each adjustment region, and the gamma correction value corresponding to each adjustment region is different, and monotonously changes as the distance from the data driver increases, including: Obtain an initial grayscale value of the image data of each adjustment region; perform gamma correction on the initial grayscale value to generate an adjusted grayscale value, and the adjusted grayscale value is used as an adjustment data voltage; and output the adjustment data voltage to a corresponding one. The adjustment area is described.

In an embodiment, the outputting the adjusted image data to the corresponding adjustment region includes: obtaining a timing signal, where the timing signal includes a plurality of continuous and periodically arranged pulses, wherein each pulse corresponds to an edge A row of pixel units arranged in the first direction is scanned, and the number of pulses represents the number of rows of pixel units. When the adjusted image data is output to an adjustment area of the display panel, the timing signal is detected. If the number of pulses reaches the total number of pixels in the corresponding adjustment area, the control unit switches the search unit corresponding to the next adjustment area.

In one embodiment, a display driving method of a display device, wherein a display panel of the display device includes a plurality of adjustment regions, the plurality of adjustment regions are arranged side by side in a first direction, and the display driving method includes: The driving voltage is provided in two opposite directions along a second direction in each of the adjustment regions, the second direction being perpendicular to the first direction.

In one embodiment, the providing the driving voltage to two opposite directions along a second direction in each of the adjustment regions, the second direction being perpendicular to the first direction, including: the first The two directions include a first sub-direction and a second sub-direction opposite to the first sub-direction. Each adjacent two rows of pixel units in each of the adjustment regions are provided with the transmission of the driving voltage provided to one row of the pixel units. The direction is a first sub-direction along the second direction, and the transmission direction of the driving voltage supplied to the pixel units in another row is a second sub-direction along the second direction.

The above is a preferred embodiment of the present invention. It should be noted that, for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. It is the protection scope of the present invention.

Claims

A display driving method for a display device, characterized in that a display panel of the display device includes a plurality of adjustment regions, and the plurality of adjustment regions are arranged side by side in a first direction. The display driving method includes:

A plurality of image data to be displayed provided to each of the adjustment regions is adjusted, and the adjusted image data is output to a corresponding adjustment region.
The display driving method according to claim 1, wherein the adjusting a plurality of image data to be displayed provided to each of the adjustment regions comprises:

Each adjustment area corresponds to a search unit, and the plurality of image data provided to each of the adjustment areas are adjusted according to the search units corresponding to the respective adjustment areas, where each search unit includes the corresponding adjustment area Adjust the grayscale value for each initial grayscale value.
The display driving method according to claim 2, wherein before the adjusting a plurality of image data to be displayed provided to each of the adjustment areas, the display driving method further comprises:

A search unit corresponding to each adjustment region is generated in advance, and the search unit corresponding to each adjustment region is generated in advance:

According to the preset target brightness value corresponding to the initial grayscale value of the image data of each adjustment area, adjust and change the initial grayscale value of each adjustment area to generate a corresponding adjusted grayscale value, and record the initial grayscale value and adjusted grayscale of each adjustment area. The correspondence between the order values generates a search unit.
The display driving method according to claim 3, wherein the adjusting a plurality of image data to be displayed provided to each of the adjustment regions comprises:

Obtaining multiple initial grayscale values corresponding to the image data in each adjustment region;

Obtaining an adjusted grayscale value corresponding to each initial grayscale value according to a search unit corresponding to each adjustment region, where the adjusted grayscale value is used as an adjustment data voltage,

The outputting the adjusted image data to the corresponding adjustment region includes: applying the adjustment data voltage to a data line of the corresponding adjustment region.
The display driving method according to claim 2, wherein the distances of the plurality of adjustment regions relative to the data driver provided on one side of the display panel are gradually increased along the first direction, and each of the adjustment regions Corresponds to a search unit, and adjusts the plurality of image data provided to each of the adjustment areas according to the search units corresponding to each adjustment area, wherein each search unit includes each initial of the corresponding adjustment area Adjust the grayscale value, including:

Gamma correction is performed on the image data of each adjustment area, and the gamma correction value corresponding to each adjustment area is different, and changes monotonically with the distance from the data driver of the display device.
The display driving method according to claim 5, characterized in that the gamma correction is performed on the image data of each adjustment area, and the gamma correction value corresponding to each adjustment area is different, and as the data driver The monotonic change of the distance includes: obtaining an initial grayscale value of the image data of each adjustment region; performing gamma correction on the initial grayscale value to generate an adjusted grayscale value, and the adjusted grayscale value is used as an adjustment data voltage; output Adjusting the data voltage to the corresponding adjustment region.
The display driving method according to any one of claims 1-6, wherein the outputting the adjusted image data to the corresponding adjustment region comprises:

Acquire a timing signal, where the timing signal includes a plurality of consecutive and periodically arranged pulses, wherein each pulse is scanned corresponding to a row of pixel units arranged along the first direction, and the number of the pulses represents the number of rows of pixel units , When outputting the adjusted image data to an adjustment area of the display panel, detecting the number of pulses of the timing signal, and if the number of pulses reaches the total number of rows of pixels corresponding to the adjustment area, control switching the next adjustment The search unit corresponding to the area.
A display driving method for a display device, characterized in that the display panel of the display device includes a plurality of adjustment regions, and the plurality of adjustment regions are arranged side by side in a first direction. The display driving method includes:

The driving voltage is provided to two opposite sub-directions in each of the adjustment regions along a second direction, the second direction being perpendicular to the first direction.
The display driving method according to claim 8, wherein the providing the driving voltage to two opposite sub-directions along a second direction in each of the adjustment regions comprises: the second direction Including a first sub-direction and a second sub-direction opposite to the first sub-direction, each adjacent two rows of pixel units in each of the adjustment regions, along with the transmission direction of the driving voltage provided to one row of pixel units The first sub-direction of the second direction is a second sub-direction in which the transmission direction of the driving voltage provided to the pixel units in another row is along the second direction.
A display device, characterized in that the display device includes a display panel for image display, a data driver and a power driver provided on one side of the display panel, and the display panel includes a plurality of adjustment regions, a plurality of The adjustment areas are arranged side by side along a first direction, and the data driver is configured to provide the display panel with image data for image display along the first direction,

The display device further includes a processing module for adjusting a plurality of image data to be displayed provided to each of the adjustment regions, and the processing module is configured to pass the adjusted image data through the data. The driver outputs to the corresponding adjustment region.
The display device according to claim 10, wherein the display device further comprises a registration module for storing a lookup table, the lookup table includes a plurality of lookup units, and each lookup unit includes the lookup unit A corresponding relationship between each initial grayscale value of the adjustment area and the adjusted grayscale value; the processing module is configured to, according to the search unit corresponding to each adjustment area, provide a plurality of to-be-displayed information provided to each adjustment area; Image data is adjusted.
The display device according to claim 11, wherein the adjusted grayscale value is generated by a preset target brightness value corresponding to an initial grayscale value of the image data of each adjustment area.
The display device according to claim 12, wherein the processing module is configured to obtain a plurality of initial grayscale values corresponding to the image data in each adjustment area, and obtain each of them according to a search unit corresponding to each adjustment area. The adjusted grayscale value corresponding to the initial grayscale value is used as the adjusted data voltage; the data driver is configured to apply the adjusted data voltage to the data line corresponding to the adjustment area.
The display device according to claim 12, wherein the processing module is further configured to perform gamma correction on the image data of each adjustment area, and the gamma correction value corresponding to each adjustment area is different, and as the The increase in the distance of the data driver changes monotonically.
The display device according to claim 14, wherein the processing module is configured to obtain an initial grayscale value of the image data of each adjustment region; perform gamma correction on the initial grayscale value to generate an adjusted grayscale value, and The adjustment of the grayscale value is described as the adjustment data voltage.
The display device according to claim 10, wherein the display device further comprises a timing controller, the timing controller and the display panel, the data driver, the processing module, and The power driver is electrically connected, and the data driver outputs adjusted image data to an adjustment area of the display panel based on a timing signal transmitted by the timing controller.
The display device according to claim 16, wherein the timing signal comprises a plurality of continuous and periodically arranged pulses, wherein each pulse is scanned corresponding to a row of pixel units arranged along the first direction, and the The number of pulses represents the number of rows of pixel units,

The display device further includes a counting module for detecting the number of pulses of the timing signal, and when outputting the adjusted image data to an adjustment area of the display panel, detecting the number of pulses of the timing signal. If the number of pulses reaches the total number of pixels in the corresponding adjustment area, the control unit switches the search unit corresponding to the next adjustment area.
A display device, characterized in that the display device includes a display panel for image display, a data driver and a power driver provided on one side of the display panel, and the display panel includes a plurality of adjustment regions, and the plurality of The adjustment areas are arranged side by side along a first direction, and the data driver is configured to provide the display panel with image data for image display along the first direction,

The power driver provides the driving voltage to two opposite sub-directions along a second direction in each of the adjustment regions, the second direction being perpendicular to the first direction.
The display device according to claim 18, wherein the second direction includes a first sub-direction and a second sub-direction opposite to the first sub-direction, and each of the adjustment regions is adjacent to each other. In the two rows of pixel units, the transmission direction of the driving voltage provided by the power source driver to one of the pixel units is along a first sub-direction of the second direction, and the transmission direction of the driving voltage provided to the other row of pixel units is along the The second sub-direction of the second direction.
The display device according to claim 19, wherein the display panel further comprises a first end portion and a second end portion opposite to each other, wherein the first sub-direction is a direction in which the first end portion faces The second end portion, the second sub-direction is that the second end portion faces the first end portion, the display device further includes a first transmission line and a second transmission line, and the first transmission line is powered by the power source The driver extends to a first end portion of the display panel, and the second transmission line extends from the power driver to a second end portion of the display panel.