CN112530375B - Driving method of display device, display device and storage medium - Google Patents
Driving method of display device, display device and storage medium Download PDFInfo
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- CN112530375B CN112530375B CN202011403755.8A CN202011403755A CN112530375B CN 112530375 B CN112530375 B CN 112530375B CN 202011403755 A CN202011403755 A CN 202011403755A CN 112530375 B CN112530375 B CN 112530375B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The invention discloses a driving method of a display device, the display device and a storage medium, which are used for solving the technical problem of low display quality of pictures in the prior art, wherein the display device comprises a display panel and a backlight module, the display panel comprises a plurality of continuous display subareas along the frame scanning direction of the display device, the backlight module comprises a plurality of backlight subareas corresponding to the display subareas one by one, and the driving method comprises the following steps: and sequentially charging each display subarea along the frame scanning direction, carrying out local dimming on the backlight subarea corresponding to one display subarea in the charging time interval of two adjacent display subareas, and carrying out local dimming on the remaining backlight subareas which are not subjected to local dimming after the charging of the last display subarea is finished.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a driving method of a display device, and a storage medium.
Background
The Local Dimming (Local Dimming) technology is that a backlight composed of hundreds of LEDs is used for replacing a traditional backlight, and a corresponding algorithm is designed, so that the backlight LEDs can be adjusted according to the brightness of an image, the contrast of the image is improved, and the energy consumption is reduced.
In the prior art, when a display panel using a local dimming technique displays an image, the local dimming is usually performed on a frame of image just scanned by calling a corresponding algorithm of the local dimming after the image is completely scanned on the display panel. In the frame switching time (V-blanking) section of the adjacent two frame images.
According to an RC (resistance, C is a capacitor) time delay principle, C is xi S/d, wherein xi is a dielectric constant of a medium between polar plates, S is an area of the polar plates, and d is a distance between the polar plates, an Active layer (a-Si) is arranged below a Data line (Data) in an internal framework of the display panel, when backlight is turned on, the Active is influenced by illumination and changed into a conductor, C is increased, time delay is increased, at the moment, the pixel charging rate is influenced to be lower, and the brightness of a corresponding area is lower; when the backlight is closed and no illumination is available, the Active is an insulating layer, C is reduced, delay is reduced, and the pixel charging rate is better.
If the backlight is controlled by a dc signal, the backlight is always on when the pixels are charged, which results in a low charging rate of the entire pixels of the display panel. If the backlight is modulated by Pulse Width Modulation (PWM), when the pixels are charged, a part of the pixels are line-scanned when the backlight is turned on, and a part of the pixels are line-scanned when the backlight is turned off.
Therefore, it is an urgent technical problem to improve the display quality of the picture.
Disclosure of Invention
The invention provides a driving method of a display device, the display device and a storage medium, which are used for solving the technical problem of low display quality of pictures in the prior art.
In a first aspect, to solve the above technical problem, an embodiment of the present invention provides a driving method for a display device, including:
the display device comprises a display panel and a backlight module, the display panel comprises a plurality of continuous display subareas along the frame scanning direction of the display device, the backlight module comprises a plurality of backlight subareas corresponding to the display subareas one by one, and the driving method comprises the following steps:
and sequentially charging each display partition along the frame scanning direction, performing local dimming on the backlight partition corresponding to one display partition in the charging time interval of two adjacent display partitions, and performing local dimming on the remaining backlight partitions which are not subjected to local dimming after the charging of the last display partition is completed.
One possible embodiment, performing local dimming on a backlight partition corresponding to one display partition in a charging time interval between two adjacent display partitions, includes:
and in the first charging time interval after the charging of the display partition is finished, starting the corresponding backlight lamp for the backlight partition corresponding to the display partition, and carrying out local dimming.
One possible embodiment, performing local dimming on a backlight partition corresponding to one display partition in a charging time interval between two adjacent display partitions, includes:
after the charging of the display partition is completed, at least one display partition which is charged is separated, and in the subsequent first charging time interval, the corresponding backlight lamp is started for the backlight partition corresponding to the display partition, and local dimming is performed.
In one possible embodiment, the charging time interval of two adjacent rows of pixels in the display area along the frame scanning direction is gradually reduced.
In one possible embodiment, the charging time intervals of the two adjacent rows of pixels are reduced in size.
In one possible embodiment, the charging time interval between two adjacent rows of pixels is less than the charging time period of each row of pixels.
In one possible embodiment, the charging time interval between two adjacent display partitions is greater than the minimum time required for local dimming of one backlight partition.
In one possible embodiment, the charging interval between two adjacent display partitions is greater than the sum of the row pixel charging interval times of two adjacent rows of pixels in one display partition.
In one possible embodiment, the charging time interval between two adjacent display partitions is less than the charging time of each row of pixels.
In a possible implementation, in a frame switching time interval between two adjacent frames of images, a black picture is simultaneously inserted into the plurality of display partitions, and the backlight lamps of the plurality of backlight partitions are turned off.
In a second aspect, an embodiment of the present invention provides a display device, including:
the display device comprises a display panel and a backlight module, wherein the display panel comprises a plurality of continuous display subareas along the frame scanning direction of the display device, and the backlight module comprises a plurality of backlight subareas which are in one-to-one correspondence with the display subareas;
and the driving circuit is used for sequentially charging each display subarea along the frame scanning direction, carrying out local dimming on one display subarea and the backlight subarea corresponding to the display subarea in the charging time interval of two adjacent display subareas, and carrying out local dimming on the remaining backlight subareas which are not subjected to local dimming after the charging of the last display subarea is finished.
In one possible implementation, the driving circuit is further configured to:
and in the first charging time interval after the charging of the display partition is finished, starting the corresponding backlight lamp for the backlight partition corresponding to the display partition, and carrying out local dimming.
In one possible implementation, the driving circuit is further configured to:
after the charging of the display partition is completed, at least one display partition which is charged is separated, and in the subsequent first charging time interval, the corresponding backlight lamp is started for the backlight partition corresponding to the display partition, and local dimming is performed.
In one possible embodiment, the charging time interval of two adjacent rows of pixels in the display area along the frame scanning direction is gradually reduced.
In one possible embodiment, the charging time intervals of the two adjacent rows of pixels are reduced in size.
In one possible embodiment, the charging time interval between two adjacent rows of pixels is less than the charging time period of each row of pixels.
In one possible embodiment, the charging time interval between two adjacent display partitions is greater than the minimum time required for local dimming of one backlight partition.
In one possible embodiment, the charging interval between two adjacent display partitions is greater than the sum of the row pixel charging interval times of two adjacent rows of pixels in one display partition.
In one possible embodiment, the charging time interval between two adjacent display partitions is less than the charging time of each row of pixels.
In one possible embodiment, the driving circuit is further configured to insert a black picture into the plurality of display partitions simultaneously and turn off the backlight lamps of the plurality of backlight partitions in a frame switching time interval between two adjacent frames of images.
In a third aspect, an embodiment of the present invention further provides a readable storage medium, including:
a memory for storing a plurality of data to be transmitted,
the memory is for storing instructions that, when executed by the processor, cause an apparatus comprising the readable storage medium to perform the method as described in the first aspect above.
Drawings
FIG. 1 is a schematic diagram of a display partition and a backlight partition in a display device according to an embodiment of the present invention;
FIG. 2 is a first timing diagram for controlling the display partition and the dimming partition according to the embodiment of the present invention;
fig. 3 is a first schematic diagram illustrating local dimming performed on a backlight partition corresponding to a plurality of display partitions according to an embodiment of the present invention;
fig. 4 is a second timing diagram for controlling the display partition and the dimming partition according to the embodiment of the present invention;
fig. 5 is a schematic diagram illustrating local dimming performed on a backlight partition corresponding to a plurality of display partitions according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention provide a driving method for a local dimming display device, a display device, and a storage medium, so as to solve the technical problem in the prior art that the display quality of a picture is not high.
In order to better understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided with the accompanying drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the examples of the present invention are the detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and the examples of the present invention may be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic diagram of a display partition and a backlight partition in a display device according to an embodiment of the present invention.
In fig. 1, the display device includes a display panel a and a backlight module B, and the display panel a includes a plurality of continuous display partitions along a frame scanning direction X of the display device, where a dividing line between the display partitions is illustrated by a dotted line as shown in fig. 1, and the display partitions may be denoted as a display partition 1 to a display partition N. Along the frame scanning direction X of the display device, the backlight module B includes a plurality of backlight partitions corresponding to the plurality of display partitions one to one, as shown in fig. 1, the dividing lines between the backlight partitions are also indicated by dotted lines, the backlight partitions may be denoted as backlight partitions 1 to backlight partitions N, and the display partitions 1 to N sequentially correspond to the backlight partitions 1 to N one to one.
The processing procedure of the method for driving the display device is as follows:
and sequentially charging each display subarea along the frame scanning direction X, performing local dimming on the backlight subarea corresponding to one display subarea in the charging time interval of two adjacent display subareas, and performing local dimming on the remaining backlight subareas which are not subjected to local dimming after the charging of the last display subarea is finished.
Local dimming is respectively carried out on the backlight subareas corresponding to the display subareas which are charged in the display device, so that the uniformity of the display panel can be timely improved, and the display quality of the picture is further improved.
Local dimming is performed on the backlight subarea corresponding to one display subarea in the charging time interval of two adjacent display subareas, and the following two modes are mainly adopted:
the first mode is as follows: and in the first charging time interval after the charging of one display partition is finished, starting the corresponding backlight lamp for the backlight partition corresponding to the display partition, and carrying out local dimming.
Fig. 2 is a timing diagram for controlling the display partition and the dimming partition according to the first embodiment of the present invention.
In the timing diagram corresponding to the pixel row in fig. 2, a high level signal represents charging of a corresponding pixel row (the corresponding charging time period is denoted as t1), and a low level signal between two adjacent pixel rows is the charging time interval (denoted as t2) of the two adjacent pixel rows. Assuming that each display partition in fig. 2 includes 5 rows of pixels, completing charging of one display partition means that all the 5 rows of pixels included in the display partition are charged, and as shown in fig. 2, the charging of the display partition 1 is completed when the charging of the 5 th row of pixels in the display partition 1 is completed.
The charging time interval between two adjacent display partitions in fig. 2 is denoted as t3, and when the charging of the display partition 1 is completed, the backlight corresponding to the backlight partition 1 of the display partition 1 may be turned on and local dimming may be performed in the first charging time interval (first t3) after the display partition 1 is charged; after the charging of the display partition 2 is completed, the corresponding backlight lamp may be turned on for the backlight partition 2 corresponding to the display partition 2 and local dimming may be performed in the first charging time interval (2 nd t3) after the display partition 2 is completed, and by analogy, the display partition is sequentially charged, the corresponding backlight partition is locally dimmed after the charging is completed, and after the charging of the last display partition is completed, the corresponding backlight lamp is turned on for the backlight partition corresponding to the last display partition and local dimming is performed, as shown in fig. 3, which is a schematic diagram one of local dimming performed on the backlight partitions corresponding to the plurality of display partitions according to the embodiment of the present invention.
It should be noted that, in the display panel in fig. 3, the black area is a display partition that is not yet charged, and the white area is a display partition that is already charged; in the backlight module, a black area is a backlight partition which is not started and is subjected to local dimming, and a white area is a backlight partition which is subjected to the local dimming.
A second way of performing local dimming on the backlight partition corresponding to one display partition in the charging time interval of two adjacent display partitions:
after the charging of one display partition is completed, at least one display partition which is charged is separated, and in the subsequent first charging time interval, the corresponding backlight lamp is started for the backlight partition corresponding to one display partition, and local dimming is carried out.
Fig. 4 is a timing diagram illustrating a second timing chart for controlling the display sub-area and the dimming sub-area according to an embodiment of the present invention. The timing sequence at the top in fig. 4 is the timing sequence corresponding to the pixel rows, the timing sequence at the bottom is the timing sequence corresponding to the backlight partition, the high and low levels in fig. 4 have the same meaning as in fig. 2, and the number of the pixel rows included in each partition is the same as in fig. 2, so the description thereof is omitted. The difference is that in fig. 4, after charging of one display partition is completed, a display partition with completed charging is separated, and in the subsequent first charging time interval, the corresponding backlight lamp is turned on for the backlight partition corresponding to the display partition and local dimming is performed, and after charging of the last display partition is completed, the corresponding backlight lamp is turned on for the two backlight partitions corresponding to the last two display partitions and local dimming is performed.
For example, after the charging of the display partition 1 in fig. 4 is completed, a display partition (display partition 2) with completed charging is separated, and in the first charging time interval (i.e., the 2 nd t3 in fig. 4) after the charging of the display partition 2 is completed, the corresponding backlight is turned on for the backlight partition 1 corresponding to the display partition 1 and local dimming is performed; in the first charging time interval (i.e. 3 rd t3 in fig. 4) after the charging of the display partition 3 is completed, the corresponding backlight lamp is turned on for the backlight partition 2 corresponding to the display partition 2 and local dimming is performed; and by analogy, local dimming is carried out on the backlight subareas corresponding to other display subareas, and after the charging of the last display subarea is completed, the corresponding backlight lamps are turned on for the two backlight subareas corresponding to the last two display subareas and the local dimming is carried out. Fig. 5 is a schematic diagram illustrating local dimming performed on a backlight partition corresponding to a plurality of display partitions according to an embodiment of the present invention.
In fig. 4, after the charging of one display partition is completed, at least one display partition that has been charged is separated, and in the first charging time interval thereafter, the corresponding backlight is turned on for the backlight partition corresponding to the one display partition, and local dimming is performed. In practice, the interval may be two, three or more, and the specific interval is not limited. In addition, in fig. 2 and fig. 4, each display partition includes 5 pixel rows, but in practical applications, each display partition includes more pixel rows, and data of the pixel rows included in each display partition is not limited.
In one possible embodiment, the charging time interval of two adjacent rows of pixels is gradually reduced along the frame scanning direction in the display partition.
T2 in each display partition decreases gradually in the frame scanning direction as shown in fig. 2 or fig. 4, and the value of t2 between the last two pixel rows in the display partition is smallest as the charging time interval t2 between pixel row 1 and pixel row 2 is greater than the charging time interval t2 between pixel row 2 and pixel row 3, the charging time interval t2 between pixel row 2 and pixel row 3 is greater than the charging time interval t2 between pixel row 3 and pixel row 4, and so on in fig. 2.
By gradually reducing the charging time interval of two adjacent rows of pixels along the frame scanning direction in the display partition, the parasitic capacitance of the uncharged pixel row adjacent to the charged pixel row can be reduced, thereby improving the slave point efficiency and further improving the quality of the display picture.
In one possible embodiment, the charging time intervals of two adjacent rows of pixels are reduced in size.
For example, the charging time interval of two adjacent rows of pixels in each display section decreases in the same size (denoted as Δ t) in the frame scanning direction, as the charging time interval between pixel row 1 and pixel row 2 is t2 in fig. 2, the charging time interval between pixel row 2 and pixel row 3 is t2- Δ t, the charging time interval between pixel row 3 and pixel row 4 is t2-2 Δ t, and so on.
In one possible embodiment, the charging time interval between two adjacent rows of pixels is less than the charging time period of each row of pixels. As shown in fig. 2, the charging time interval t2 between the pixel row 1 and the pixel row 2 is less than the charging time period t1 per row of pixels.
In one possible embodiment, the charging time interval between two adjacent display partitions is greater than the minimum time required for local dimming of one backlight partition.
The charging time interval of two adjacent display subareas is larger than the minimum time required by local dimming of one backlight subarea, so that the backlight subarea corresponding to each display subarea can complete local dimming.
In one possible embodiment, the charging interval between two adjacent display partitions is greater than the sum of the row pixel charging interval times of all two adjacent rows of pixels in one display partition.
For example, in fig. 2, the charging time interval t3 between display partition 1 and display partition 2 is > t21+ t22+ t23+ t24, where t21, t22, t23, and t24 are 4 charging time intervals from pixel row 1 to pixel row 5 in sequence.
In one possible embodiment, the charging time interval between two adjacent display partitions is less than the charging time of each row of pixels. As shown in fig. 2, the charging time interval t3< t1 between display partition 1 and display partition 2.
In one possible implementation, during the frame switching time interval of two adjacent frames of images, black pictures are simultaneously inserted into a plurality of display partitions, and the backlight lamps of a plurality of backlight partitions are turned off.
For example, after the display of the current frame image is completed (i.e., after the charging of each display partition of the whole display panel and the local dimming of the corresponding backlight partition are completed), before the display is switched to the next frame image for display, a black frame is inserted into each display partition, and the backlight of each backlight partition is turned off.
By inserting black pictures into a plurality of display subareas simultaneously and turning off the backlight lamps of a plurality of backlight subareas in the frame switching time interval of two adjacent frames of images, the display of the next frame of image can be prevented from being influenced by the current frame of image, thereby improving the display quality of the picture.
Based on the same inventive concept, an embodiment of the present invention provides a display device, and the detailed implementation of the driving method of the display device can be referred to the description of the method embodiment, and repeated descriptions are omitted, please refer to fig. 6, and the display device includes:
the display device comprises a display panel 601 and a backlight module 602, wherein the display panel 601 comprises a plurality of continuous display partitions along the frame scanning direction of the display device, and the backlight module 602 comprises a plurality of backlight partitions corresponding to the display partitions one by one;
the driving circuit 603 is respectively connected to the display panel 601 and the backlight module 602, and the driving circuit 603 is configured to sequentially charge each display partition along the frame scanning direction, perform local dimming on one display partition and the backlight partition corresponding to the display partition within a charging time interval of two adjacent display partitions, and perform local dimming on the remaining backlight partitions that are not subjected to local dimming after the charging of the last display partition is completed.
In one possible implementation, the driving circuit 603 is further configured to:
and in the first charging time interval after the charging of the display partition is finished, starting the corresponding backlight lamp for the backlight partition corresponding to the display partition, and carrying out local dimming.
In one possible implementation, the driving circuit 603 is further configured to:
after the charging of the display partition is completed, at least one display partition which is charged is separated, and in the subsequent first charging time interval, the corresponding backlight lamp is started for the backlight partition corresponding to the display partition, and local dimming is performed.
In one possible embodiment, the charging time interval of two adjacent rows of pixels in the display area along the frame scanning direction is gradually reduced.
In one possible embodiment, the charging time intervals of the two adjacent rows of pixels are reduced in size.
In one possible embodiment, the charging time interval between two adjacent rows of pixels is less than the charging time period of each row of pixels.
In one possible embodiment, the charging time interval between two adjacent display partitions is greater than the minimum time required for local dimming of one backlight partition.
In one possible embodiment, the charging interval between two adjacent display partitions is greater than the sum of the row pixel charging interval times of two adjacent rows of pixels in one display partition.
In one possible embodiment, the charging time interval between two adjacent display partitions is less than the charging time of each row of pixels.
In one possible embodiment, the driving circuit 603 is further configured to insert a black picture into the plurality of display partitions simultaneously and turn off the backlight lamps of the plurality of backlight partitions in the frame switching time interval of two adjacent frames of images.
Based on the same inventive concept, an embodiment of the present invention further provides a readable storage medium, including:
a memory for storing a plurality of data to be transmitted,
the memory is used for storing instructions which, when executed by the processor, cause the apparatus comprising the readable storage medium to perform the driving method of the display panel as described above.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
1. A driving method of a display device, the display device comprising a display panel and a backlight module, the display panel comprising a plurality of continuous display partitions along a frame scanning direction of the display device, the backlight module comprising a plurality of backlight partitions in one-to-one correspondence with the display partitions, the driving method comprising:
and sequentially charging each display partition along the frame scanning direction, performing local dimming on the backlight partition corresponding to one display partition in the charging time interval of two adjacent display partitions, and performing local dimming on the remaining backlight partitions which are not subjected to local dimming after the charging of the last display partition is completed.
2. The driving method as claimed in claim 1, wherein the local dimming of the backlight partition corresponding to one display partition in the charging time interval of two adjacent display partitions comprises:
and in the first charging time interval after the charging of the display partition is finished, starting a corresponding backlight lamp for the backlight partition corresponding to the display partition, and carrying out local dimming on the backlight partition.
3. The driving method as claimed in claim 1, wherein the local dimming of the backlight partition corresponding to one display partition in the charging time interval of two adjacent display partitions comprises:
after the charging of the display partition is completed, at least one display partition which is charged is separated, and in the subsequent first charging time interval, the corresponding backlight lamp is started for the backlight partition corresponding to the display partition, and local dimming is performed.
4. The driving method according to any one of claims 1 to 3, wherein the charging time interval of two adjacent rows of pixels is gradually reduced in the frame scanning direction in the display section.
5. The driving method according to claim 4, wherein the charging time intervals of the pixels of the two adjacent rows are reduced in equal size.
6. The driving method according to claim 5, wherein the charging time interval of the pixels of two adjacent rows is smaller than the charging time period of the pixels of each row.
7. The driving method as claimed in any one of claims 1 to 3, wherein the charging time interval between two adjacent display partitions is greater than the minimum time required for local dimming of one backlight partition.
8. The driving method according to claim 6, wherein the charging time interval of the adjacent two display sections is larger than the sum of the charging time intervals of all the adjacent two rows of pixels in one display section.
9. The driving method as claimed in claim 7, wherein the charging time interval of two adjacent display sections is less than the charging time period of each row of pixels.
10. The driving method according to claim 1, wherein in a frame switching time interval between two adjacent frames of images, a black picture is simultaneously inserted into the plurality of display sections, and a backlight of the plurality of backlight sections is turned off.
11. A display device, comprising:
the display device comprises a display panel and a backlight module, wherein the display panel comprises a plurality of continuous display subareas along the frame scanning direction of the display device, and the backlight module comprises a plurality of backlight subareas which are in one-to-one correspondence with the display subareas;
and the driving circuit is used for sequentially charging each display subarea along the frame scanning direction, carrying out local dimming on one display subarea and the backlight subarea corresponding to the display subarea in the charging time interval of two adjacent display subareas, and carrying out local dimming on the remaining backlight subareas which are not subjected to local dimming after the charging of the last display subarea is finished.
12. A readable storage medium, comprising a memory,
the memory is for storing instructions that, when executed by the processor, cause an apparatus comprising the readable storage medium to perform the method of any of claims 1-10.
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| US7764266B2 (en) * | 2006-01-24 | 2010-07-27 | Au Optronics Corporation | Method and system for controlling an active matrix display device |
| JP5291090B2 (en) * | 2008-03-24 | 2013-09-18 | 株式会社ジャパンディスプレイウェスト | IMAGING DEVICE, DISPLAY IMAGING DEVICE, AND ELECTRONIC DEVICE |
| CN103531163B (en) * | 2013-08-20 | 2016-01-06 | 明基电通有限公司 | Display packing and display device |
| KR102116412B1 (en) * | 2013-08-29 | 2020-05-29 | 엘지디스플레이 주식회사 | Backlight unit and display device using the same and driving method thereof |
| CN109712586A (en) * | 2019-02-15 | 2019-05-03 | 京东方科技集团股份有限公司 | A kind of display methods, device and computer readable storage medium |
| CN112017600B (en) * | 2019-05-30 | 2022-02-01 | 京东方科技集团股份有限公司 | Driving device and method of liquid crystal display panel and display device |
| CN110634453B (en) * | 2019-09-30 | 2021-08-31 | 京东方科技集团股份有限公司 | Pixel charging method, pixel charging circuit, display device and display control method |
| CN110867170B (en) * | 2019-11-29 | 2022-07-29 | 厦门天马微电子有限公司 | Display panel driving method, display driving device and electronic equipment |
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