CN114613326B

CN114613326B - Display panel driving method and device and computer readable storage medium

Info

Publication number: CN114613326B
Application number: CN202210205299.9A
Authority: CN
Inventors: 杨星星
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2023-09-15
Anticipated expiration: 2042-03-02
Also published as: CN114613326A

Abstract

The embodiment of the application provides a driving method and device of a display panel and a computer readable storage medium, wherein the display panel comprises a plane area and a curved area, the curved area comprises N sub-areas, and the method comprises the following steps: acquiring chromaticity information of the planar area under a plurality of different view angles, wherein the view angles are angles between the sight line and a first direction perpendicular to the planar area; for any ith view angle, taking chromaticity information of the plane area under the ith view angle as chromaticity information of an ith sub-area in the curved surface area, wherein the ith sub-area is a sub-area with an included angle between the tangential direction of the sub-area and the first direction being equal to the ith view angle; determining data voltage values corresponding to all color sub-pixels in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region; and driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas. The embodiment of the application can weaken or even eliminate the color cast difference between different positions of the curved display panel.

Description

Display panel driving method and device and computer readable storage medium

Technical Field

The present application relates to the field of display technologies, and in particular, to a method and apparatus for driving a display panel, and a computer readable storage medium.

Background

With the progress of display technology, digital display devices such as smart phones and tablet computers are widely used, wherein a display panel is an indispensable interpersonal communication interface in the display devices. Such as OLED (Organic Light Emitting Diode, organic light-emitting diode) display panel, has self-luminous, energy-saving and consumption-reducing, flexible and other advantages.

Along with gradual upgrade of visual experience requirements of users, terminal equipment such as mobile phone panels and the like at present gradually develop to a large screen ratio, and more display devices begin to adopt curved display panels. However, the structure of the conventional curved display panel is limited, and the curved display panel is different in color cast due to the visual angle difference at different positions, so that the user experience is affected.

Disclosure of Invention

The embodiment of the application provides a driving method and device of a display panel and a computer readable storage medium, which can weaken or even eliminate the color cast difference of the curved display panel and improve the display effect of the curved display panel.

In a first aspect, an embodiment of the present application provides a driving method of a display panel, including: the display panel comprises a plane area and a curved surface area, the curved surface area comprises N sub-areas, and N is a positive integer, and the method comprises the following steps: acquiring chromaticity information of the planar area under a plurality of different view angles, wherein the view angles are angles between the sight line and a first direction perpendicular to the planar area; for any ith view angle in a plurality of different view angles, taking chromaticity information of the plane area under the ith view angle as chromaticity information of an ith sub-area in the curved surface area, wherein the ith sub-area is a sub-area with an included angle between the tangential direction of the sub-area in N sub-areas and the first direction being equal to the ith view angle; determining data voltage values corresponding to all color sub-pixels in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region; and driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas.

According to an embodiment of the first aspect of the present application, obtaining chromaticity information of a planar area under a plurality of different viewing angles may specifically include: acquiring a first color coordinate, a second color coordinate and a third color coordinate of the plane area under a plurality of different visual angles; according to the target color coordinates and the chromaticity information of the ith sub-area, determining the data voltage value corresponding to each color sub-pixel in the ith sub-area specifically may include: and determining a data voltage value corresponding to the first color sub-pixel, a data voltage value corresponding to the second color sub-pixel and a data voltage value corresponding to the third color sub-pixel in the ith sub-region according to the target color coordinate and the first color coordinate, the second color coordinate and the third color coordinate of the plane region under the ith view angle.

In this way, the first color coordinate, the second color coordinate and the third color coordinate of the plane area under the ith view angle are obtained, and based on the determined first color coordinate, the second color coordinate and the third color coordinate of the plane area under the ith view angle, the data voltage value corresponding to the first color sub-pixel, the data voltage value corresponding to the second color sub-pixel and the data voltage value corresponding to the third color sub-pixel in the ith sub-area are adjusted, so that the ith sub-area reaches the target color coordinate, the chromaticity of the ith sub-area observed by the ith view angle is consistent with the chromaticity of the plane area observed by the front view angle, and therefore, the color cast difference between the plane area and the curved surface area of the curved surface display panel when the human eyes observe the curved surface display panel is weakened or even eliminated, the target color coordinate and the chromaticity of different sub-areas in the curved surface area observed by different view angles are consistent, the color cast difference of the curved surface area is weakened or even eliminated, and the display effect of the curved surface display panel is further improved.

According to any one of the foregoing embodiments of the first aspect of the present application, the obtaining the first color coordinates, the second color coordinates, and the third color coordinates of the planar area at a plurality of different viewing angles specifically includes: driving the planar area to display a first color picture, and collecting first color coordinates of the planar area under a plurality of different visual angles when the planar area displays the first color picture to obtain first color coordinates of the planar area under the plurality of different visual angles; driving the planar area to display a second color picture, and collecting second color coordinates of the planar area under a plurality of different visual angles when the planar area displays the second color picture to obtain second color coordinates of the planar area under a plurality of different visual angles; and driving the planar area to display a third color picture, and collecting the third color coordinates of the planar area under a plurality of different visual angles when the third color picture is displayed, so as to obtain the third color coordinates of the planar area under a plurality of different visual angles.

Therefore, when the planar area displays the target color solid-color picture, the non-target color coordinate is 0, so that the first color coordinate under a plurality of different visual angles can be rapidly and accurately obtained through displaying the first color picture, and the interference of the second color coordinate and the third color coordinate is avoided. Likewise, by displaying the second color picture, the second color coordinates under a plurality of different visual angles can be rapidly and accurately obtained, and the interference of the first color coordinates and the third color coordinates is avoided; by displaying the third color picture, the third color coordinates under a plurality of different visual angles can be rapidly and accurately obtained, and interference of the first color coordinates and the second color coordinates is avoided.

According to any one of the foregoing embodiments of the first aspect of the present application, determining, according to the target color coordinate and chromaticity information of the ith sub-area, a data voltage value corresponding to each color sub-pixel in the ith sub-area may specifically include: according to the target color coordinates and the chromaticity information of the ith sub-area, determining the brightness corresponding to each color sub-pixel in the ith sub-area; determining the driving current corresponding to each color sub-pixel in the ith sub-area according to a first corresponding relation between the preset brightness of the sub-pixel and the driving current of the sub-pixel and the brightness corresponding to each color sub-pixel in the ith sub-area; and determining the data voltage value corresponding to each color sub-pixel in the ith sub-region according to the driving current corresponding to each color sub-pixel in the ith sub-region.

In this way, according to the target color coordinates and the chromaticity information of the ith sub-area, the brightness of the sub-pixel is determined first, then the driving current corresponding to the sub-pixel is determined according to the brightness of the sub-pixel, and finally the data voltage value corresponding to each color sub-pixel in the ith sub-area is determined according to the driving current corresponding to the sub-pixel, so that the adjustment of the data voltage value corresponding to each color sub-pixel in the ith sub-area based on the target color coordinates and the chromaticity information of the ith sub-area is realized, the chromaticity of the ith sub-area observed by the ith view angle is consistent with the chromaticity of the plane area observed by the front view angle, the color deviation difference between the plane area and the curved surface area of the curved surface display panel when the human eyes observe the curved surface display panel is weakened or even eliminated, the target color coordinates and the chromaticity of different sub-areas in the curved surface areas observed by different view angles are consistent, and even the color deviation difference of the curved surface area is eliminated, and the display effect of the curved surface display panel is further improved.

According to any one of the foregoing embodiments of the first aspect of the present application, the expression of the first correspondence is:

wherein I is _oled Representing the drive current of a subpixel, L _oled Representing the brightness of the sub-pixel,meaning equal to or about equal to.

According to any one of the foregoing embodiments of the first aspect of the present application, determining, according to the target color coordinate and chromaticity information of the ith sub-area, a luminance corresponding to each color sub-pixel in the ith sub-area may specifically include: the brightness corresponding to each color sub-pixel in the ith sub-area is determined according to the following expression:

wherein, (W) _x ，W _y ) Representing the target color coordinates, (Rx) ₂ ，Ry ₂ ) Representing the first color coordinates in the ith sub-area, (Gx) ₂ ，Gy ₂ ) Representing the color coordinates of the second color in the ith sub-area, (Bx) ₂ ，By ₂ ) Representing the color coordinates of the third color in the ith sub-area, RL ₂ Representing the corresponding luminance, GL, of the first color sub-pixel in the ith sub-region ₂ Representing the corresponding brightness of the second color sub-pixel in the ith sub-area, BL ₂ Representing the brightness corresponding to the third color sub-pixel in the i-th sub-area.

According to any one of the foregoing embodiments of the first aspect of the present application, the target color coordinates are target color coordinates when the planar area and the curved area display a white screen.

In this way, with the white picture as a reference, by adjusting the ith sub-region of the ith viewing angle to the same target color coordinate as the plane region of the front viewing angle, the chromaticity of the ith sub-region observed by the ith viewing angle is consistent with the chromaticity of the plane region observed by the front viewing angle, so that the color cast difference between the plane region and the curved surface region of the curved surface display panel when the human eyes observe the curved surface display panel is reduced or even eliminated, and the display effect of the curved surface display panel is improved.

According to any one of the foregoing embodiments of the first aspect of the present application, determining a data voltage value corresponding to each color sub-pixel in the ith sub-area according to a driving current corresponding to each color sub-pixel in the ith sub-area specifically includes: determining a data voltage value corresponding to the first color sub-pixel in the ith sub-area according to a second corresponding relation between a predetermined driving current of the sub-pixel and a data voltage value of the sub-pixel and a driving current corresponding to the first color sub-pixel in the ith sub-area; determining a data voltage value corresponding to the second color sub-pixel in the ith sub-region according to the second corresponding relation and the driving current corresponding to the second color sub-pixel in the ith sub-region; and determining a data voltage value corresponding to the third color sub-pixel in the ith sub-area according to the second corresponding relation and the driving current corresponding to the third color sub-pixel in the ith sub-area.

In this way, the data voltage value corresponding to the first color sub-pixel, the data voltage value corresponding to the second color sub-pixel and the data voltage value corresponding to the third color sub-pixel in the ith sub-region are adjusted based on the target color coordinates, so that the ith sub-region reaches the target color coordinates, the chromaticity of the ith sub-region observed by the ith view angle is consistent with the chromaticity of the plane region observed by the front view angle, the color shift difference between the plane region and the curved surface region of the curved surface display panel when the human eyes observe the curved surface display panel is reduced or even eliminated, the target color coordinates and the chromaticity of different sub-regions in the curved surface region observed by different view angles are consistent, the color shift difference of the curved surface region is reduced or even eliminated, and the display effect of the curved surface display panel is further improved.

According to any one of the foregoing embodiments of the first aspect of the present application, the expression of the second correspondence relationship is:

wherein I is _oled Represents the drive current of the sub-pixel, W represents the channel width of the drive transistor, L represents the channel length of the drive transistor, cox represents the gate capacitance, μ represents the mobility, V _DD Representing the value of the forward power supply voltage, V _data Representing the data voltage value of the sub-pixel.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel includes a hyperboloid display panel, the hyperboloid display panel includes a planar area and two curved areas, and the planar area is located between the two curved areas along a length direction or a width direction of the hyperboloid display panel; each sub-region in the curved surface region comprises a column of sub-pixels or adjacent columns of sub-pixels; according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas, the curved surface is driven to emit light, and the method specifically comprises the following steps: for any ith subarea in the N subareas, driving each column of sub-pixels in the ith subarea to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea.

In this way, in the embodiment of the application, the chromaticity information of the planar area under the ith view angle is used as the chromaticity information of the ith subarea in the curved surface area, and the data voltage value corresponding to each color sub-pixel in the ith subarea is adjusted to enable the ith subarea to reach the target color coordinate, so that the chromaticity of the two curved surface areas of the hyperboloid display panel is consistent with the chromaticity of the planar area observed by the front view angle, thereby weakening or even eliminating the color cast difference between the planar area and the curved surface area of the hyperboloid display panel when the human eyes observe the hyperboloid display panel, enabling the target color coordinates and the chromaticity of different subareas in the curved surface area observed by different view angles to be consistent, weakening or even eliminating the color cast difference of the curved surface area, and improving the display effect of the hyperboloid display panel.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel includes a four-curved display panel, the four-curved display panel includes a planar area and a curved area, the curved area includes a first curved area and a second curved area opposite to each other, and a third curved area and a fourth curved area opposite to each other; along the width direction of the hyperboloid display panel, the plane area is positioned between the opposite first curved surface area and the second curved surface area, and each sub-area in the first curved surface area and the second curved surface area comprises one row of sub-pixels or adjacent rows of sub-pixels; along the length direction of the hyperboloid display panel, the plane area is positioned between the opposite third curved surface area and the fourth curved surface area, and each sub-area in the third curved surface area and the fourth curved surface area comprises one row of sub-pixels or adjacent rows of sub-pixels; according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas, the curved surface area is driven to emit light, and the method specifically comprises the following steps: for any ith subarea in the first curved surface area or the second curved surface area, driving each row of sub-pixels in the ith subarea in the first curved surface area or the second curved surface area to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea in the first curved surface area or the second curved surface area; and for any ith subarea in the third curved surface area or the fourth curved surface area, driving each row of sub-pixels in the ith subarea in the third curved surface area or the fourth curved surface area to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea in the third curved surface area or the fourth curved surface area.

In this way, in the embodiment of the application, the chromaticity information of the planar area under the ith view angle is used as the chromaticity information of the ith subarea in the curved surface area, and the data voltage value corresponding to each color sub-pixel in the ith subarea is adjusted to enable the ith subarea to reach the target color coordinate, so that the chromaticity of the four curved surface areas of the four curved surface display panel is consistent with the chromaticity of the planar area observed by the front view angle, thereby weakening or even eliminating the color cast difference between the planar area and the curved surface area of the four curved surface display panel when the human eyes observe the four curved surface display panel, enabling the target color coordinates and the chromaticity of different subareas in the curved surface area observed by different view angles to be consistent, weakening or even eliminating the color cast difference of the curved surface area, and improving the display effect of the four curved surface display panel.

In a second aspect, an embodiment of the present application provides a driving device for a display panel, where the display panel includes a planar area and a curved area, the curved area includes N sub-areas, and N is a positive integer, the device includes: the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring chromaticity information of a plane area under a plurality of different visual angles, and the visual angles are angles between a sight line and a first direction perpendicular to the plane area; the first determining module is used for regarding any ith view angle in a plurality of different view angles, taking chromaticity information of the plane area under the ith view angle as chromaticity information of an ith subarea in the curved surface area, wherein the ith subarea is a subarea with an included angle between the tangential direction of the subarea in N subareas and the first direction being equal to the ith view angle; the second determining module is used for determining data voltage values corresponding to all the color sub-pixels in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region; and the driving module is used for driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas.

In a third aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the driving method of a display panel as provided in the first aspect.

The method, the device and the computer readable storage medium for driving the display panel firstly acquire chromaticity information of a plane area under a plurality of different visual angles, wherein the visual angles are angles between a sight line and a first direction perpendicular to the plane area; then, regarding any ith view angle in a plurality of different view angles, taking chromaticity information of the plane area under the ith view angle as chromaticity information of an ith sub-area in the curved surface area, wherein the ith sub-area is a sub-area with an included angle between the tangential direction of the sub-area in N sub-areas and the first direction being equal to the ith view angle; then, according to the target color coordinates and the chromaticity information of the ith sub-area, determining the data voltage value corresponding to each color sub-pixel in the ith sub-area; and finally, driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas. According to the embodiment of the application, the chromaticity information of the planar area under the ith view angle is used as the chromaticity information of the ith subarea in the curved surface area, and the data voltage value corresponding to each color sub-pixel in the ith subarea is adjusted to enable the ith subarea to reach the target color coordinate, which is equivalent to enabling the chromaticity of the ith subarea observed by the ith view angle to be consistent with the chromaticity of the planar area observed by the front view angle, so that the color deviation difference between the planar area and the curved surface area of the curved surface display panel when human eyes observe the curved surface display panel is reduced or even eliminated, the chromaticity of different subareas in the curved surface area observed by different view angles is consistent, the color deviation difference of the curved surface area is reduced or even eliminated, and the display effect of the curved surface display panel is further improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are needed to be used in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.

FIG. 1 is a schematic top view of a curved display panel;

FIG. 2 is a schematic cross-sectional view of the curved display panel shown in FIG. 1 along the direction A-A';

FIG. 3 is a schematic top view of a display panel according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a driving method of a display panel according to an embodiment of the application;

FIG. 5 is a schematic cross-sectional view of a display panel according to an embodiment of the application;

fig. 6 is a schematic flow chart of another driving method of a display panel according to an embodiment of the application;

FIG. 7 is a schematic flow chart of step S101 in the driving method of the display panel shown in FIG. 6;

FIG. 8 is a schematic flow chart of step S103 in the driving method of the display panel shown in FIG. 3 or FIG. 6;

FIG. 9 is a schematic flow chart of step S803 in the driving method of the display panel shown in FIG. 8;

fig. 10 is another schematic top view of a display panel according to an embodiment of the application;

Fig. 11 is a schematic structural diagram of a driving device of a display panel according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the application only and not limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In embodiments of the present application, the term "electrically connected" may refer to two components being directly electrically connected, or may refer to two components being electrically connected via one or more other components.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Accordingly, it is intended that the present application covers the modifications and variations of this application provided they come within the scope of the appended claims (the claims) and their equivalents. The embodiments provided by the embodiments of the present application may be combined with each other without contradiction.

Before describing the technical solution provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application firstly specifically describes the problems existing in the prior art:

As described above, the present inventors have found that there is a problem in the related art that a curved display panel has color shift differences due to viewing angle differences at different positions.

In order to solve the problem of color cast difference caused by the visual angle difference of different positions of the curved display panel, the inventor of the present application firstly researches and analyzes the root cause of the technical problem, and the specific research and analysis process is as follows:

fig. 1 is a schematic top view of a curved display panel. FIG. 2 is a schematic cross-sectional view of the curved display panel shown in FIG. 1 along the direction A-A'. The inventors of the present application have found that the curved display panel 10' may include a planar area 101' and a curved area 102', as shown in fig. 1 and 2. Along the width direction X of the curved display panel 10', the planar area 101' is located between two curved areas 102', i.e., the planar area 101' is located in the middle of the curved display panel 10', and the curved areas 102' are located on both sides of the planar area 101 '. Curved surface region 102' is curved relative to planar region 101', and the cross-sectional shape of curved surface region 102' may be arcuate (circular arc, elliptical arc), parabolic, or other non-planar region-like shape. When the user views the curved surface region 102' with a line of sight (i.e., a front view angle) perpendicular to the planar region 101', the angle a between the line of sight of the user and the tangential direction (light emission direction) of the curved surface region 102' is large. Therefore, the curved surface area 102 'is designed in a curved shape to increase the viewing angle, and the substrate of the curved display panel 10' is not an optically isotropic body due to the curved screen design, but has a birefringent property, i.e., linearly polarized light is changed into circularly polarized light after passing through the substrate. Moreover, as the viewing angle increases, the peak of the outgoing spectrum gradually shifts to the left (blue shift occurs), and the relative intensity decreases significantly as the viewing angle increases. Therefore, when the user views the planar area 101' at the front view angle, the curved area 102' has a certain view angle with respect to the planar area 101', and compared with the planar area 101', the planar area 101' has a large view angle color cast, so that a problem similar to edge mura occurs, and the look and feel are affected. In addition, when the user views the planar area 101 'at the front view angle, the view angles of the different sub-areas in the curved area 102' may be different, so that the effect of the different sub-areas in the curved area 102 'observed by the user is equivalent to that of the user viewing the planar area 101' at the different view angles, and therefore, there is also a color difference between the different sub-areas in the curved area 102', that is, the curved area 102' itself also has a color cast problem.

In view of the above-mentioned research of the inventor, the embodiments of the present application provide a driving method and apparatus for a display panel, and a computer readable storage medium, which can solve the technical problem of color cast difference caused by viewing angle differences at different positions of a curved display panel in the related art.

The technical conception of the embodiment of the application is as follows: the chromaticity information of the plane area under the ith view angle is used as the chromaticity information of the ith subarea in the curved surface area, and the data voltage values corresponding to the color sub-pixels in the ith subarea are adjusted to enable the ith subarea to reach the target color coordinates, which is equivalent to enabling the chromaticity of the ith subarea observed by the ith view angle to be consistent with the chromaticity of the plane area observed by the front view angle, so that the color deviation difference between the plane area and the curved surface area of the curved surface display panel when human eyes observe the curved surface display panel is weakened or even eliminated, the chromaticity of different subareas in the curved surface area observed by different view angles is consistent, the color deviation difference of the curved surface area is weakened or even eliminated, and the display effect of the curved surface display panel is further improved.

The following first describes a driving method of a display panel according to an embodiment of the present application.

Fig. 3 is a schematic top view of a display panel according to an embodiment of the application. Fig. 4 is a schematic flow chart of a driving method of a display panel according to an embodiment of the application. As shown in fig. 3, the display panel 10 includes a planar area 101 and a curved area 102, and the curved area 102 includes N sub-areas 102a, where N is a positive integer. It should be noted that the structure of the display panel 10 shown in fig. 3 is merely illustrative, that is, the display panel 10 may be a hyperboloid display panel shown in fig. 3, or may be other number of curved display panels, such as a four-curved display panel. When the display panel 10 is a hyperboloid display panel, the hyperboloid display panel may include a planar area 101 and two curved areas 102, and the planar area 101 may be located between the two curved areas 102 along a length direction Y or a width direction X of the hyperboloid display panel.

In addition, it should be noted that, since the value of N may be flexibly adjusted according to the actual implementation, the curved surface area 102 includes N sub-areas 102a, which may be understood that each curved surface area 102 includes N sub-areas 102a, and may be understood that all the curved surface areas 102 in the display panel 10 include N sub-areas 102a in total, which is not limited in the embodiment of the present application. In addition, the shape of the sub-area 102a and the number of sub-pixels in the sub-area 102a are not limited in the embodiment of the present application, for example, the shape of the sub-area 102a may be a stripe shape as shown in fig. 3, or may be a block shape, a dot shape or other shapes. Likewise, the sub-region 102a may include only one sub-pixel, or may include a plurality of adjacent sub-pixels. For example, in some specific examples, each sub-region 102a may include one column of sub-pixels or adjacent columns of sub-pixels. In other specific examples, each sub-region 102a may include one row of sub-pixels or adjacent rows of sub-pixels.

As shown in fig. 4, the driving method of the display panel provided by the embodiment of the present application may include the following steps S101 to S104.

S101, acquiring chromaticity information of the plane area under a plurality of different view angles, wherein the view angle is an angle between a sight line and a first direction perpendicular to the plane area.

Specifically, before S101, the planar region 101 may be gamma-debugged, for example, based on the target luminance and the target color coordinates, so that the planar region 101 reaches the target luminance and the target color coordinates. Or, precisely, the difference between the actual brightness of the planar area 101 and the target brightness is within a first preset range by gamma adjustment, so that the difference between the actual color coordinates of the planar area 101 and the target color coordinates is within a second preset range. The first preset range and the second preset range can be flexibly adjusted according to actual conditions, and the embodiment of the application is not limited to the above.

As shown in connection with fig. 5, in S101, chromaticity information of the planar region 101 at a plurality of different angles of view may be acquired, for example, using a combination of a wide-angle lens and an imaging colorimeter. The viewing angle θ can be understood as the angle between the line of sight s and the first direction Z perpendicular to the planar area 101. Illustratively, in some specific examples, chromaticity information of the planar region 101 at viewing angles of 0 ° to 60 °, for example, may be collected. 0-60 ° was chosen mainly because: the inventor of the present application finds that the collection view angle of the common wide-angle lens is generally 0 ° to 60 °, and the angle between the tangential direction of the curved surface area 102 and the first direction Z is generally less than 45 °, so that the chromaticity information of the collection plane area 101 at the view angle of 0 ° to 60 ° is enough to be used later in determining the chromaticity information of each sub-area in the curved surface area 102, so that the wide-angle lens with a larger view angle and a more expensive price does not need to be replaced, and the chromaticity information at the view angle with a wider view angle (such as 70 °) does not need to be collected, thereby reducing the cost and shortening the time spent by S101.

S102, regarding any ith view angle in a plurality of different view angles, taking chromaticity information of a plane area under the ith view angle as chromaticity information of an ith sub-area in a curved surface area, wherein the ith sub-area is a sub-area with an included angle between a tangential direction of a sub-area in N sub-areas and a first direction being equal to the ith view angle.

As shown in connection with fig. 5, since the bending angle of the curved surface region 102 is known, the angle θ' between the tangential direction of each sub-region 102a in the curved surface region 102 and the first direction Z is known. Therefore, the chromaticity information of each sub-region 102a in the curved surface region 102 may be based on the chromaticity information of the planar region 101 acquired in S101 at a plurality of different viewing angles θ. For example, for each sub-area 102a, chromaticity information of the corresponding planar area 101 at the view angle θ=θ ' may be queried according to an angle θ ' between the tangential direction of the sub-area 102a and the first direction Z, and the queried chromaticity information of the planar area 101 at the view angle θ=θ ' may be used as the chromaticity information of the sub-area 102 a.

S103, determining data voltage values corresponding to the color sub-pixels in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region.

Wherein the target color coordinates may be predetermined. Also, the target color coordinates of the curved surface region 102 may be the same as the target color coordinates of the planar region 101 so that the chromaticity of the planar region 101 coincides with the chromaticity of the curved surface region 102, thereby reducing or even eliminating the color shift difference between the planar region 101 and the curved surface region 102. In S103, based on the target color coordinates and the chromaticity information of the ith sub-region, the data voltage values corresponding to the color sub-pixels in the ith sub-region are adjusted so that each sub-region in the curved surface region 102 reaches the target color coordinates, thereby reducing or even eliminating the color shift difference between the planar region 101 and the curved surface region 102, and reducing or even eliminating the color shift difference between the different sub-regions in the curved surface region 102.

S104, driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas.

In S104, the corresponding color sub-pixels in each sub-region of the driven surface region 102 may emit light based on the determined data voltage values corresponding to the respective color sub-pixels in each sub-region of the surface region 102. In order to ensure uniformity of display, the curved surface area 102 may be driven to emit light, and the planar area 101 may be driven to emit light based on predetermined data voltage values corresponding to the respective color sub-pixels in the planar area 101. That is, the effect of simultaneously emitting light in the planar region 101 and the curved region 102 is achieved, and the uniformity of display is ensured.

According to the driving method of the display panel, the chromaticity information of the planar area under the ith view angle is used as the chromaticity information of the ith subarea in the curved surface area, and the ith subarea reaches the target color coordinate by adjusting the data voltage value corresponding to each color sub-pixel in the ith subarea, which is equivalent to the fact that the chromaticity of the ith subarea observed by the ith view angle is consistent with the chromaticity of the planar area observed by the front view angle, so that the color deviation difference between the planar area and the curved surface area of the curved surface display panel when human eyes observe the curved surface display panel is reduced or even eliminated, the chromaticity of different subareas in the curved surface area observed by different view angles is consistent, the color deviation difference of the curved surface area is reduced or even eliminated, and the display effect of the curved surface display panel is further improved.

A specific implementation of each of the above steps S101 to S104 is described below.

As shown in fig. 6, according to some embodiments of the present application, optionally, S101, acquiring chromaticity information of a planar area under a plurality of different viewing angles may specifically include the following steps: the method comprises the steps of obtaining first color coordinates, second color coordinates and third color coordinates of a plane area under a plurality of different visual angles. The first color coordinates may be, for example, red color coordinates, the second color coordinates may be, for example, green color coordinates, and the third color coordinates may be, for example, blue color coordinates. Of course, the above-mentioned corresponding sequence may be adjusted, for example, the first color coordinate may be a green color coordinate, the second color coordinate may be a blue color coordinate, and the third color coordinate may be a red color coordinate.

Correspondingly, S103, determining a data voltage value corresponding to each color sub-pixel in the ith sub-area according to the target color coordinate and the chromaticity information of the ith sub-area, which specifically includes the following steps:

and determining a data voltage value corresponding to the first color sub-pixel, a data voltage value corresponding to the second color sub-pixel and a data voltage value corresponding to the third color sub-pixel in the ith sub-region according to the target color coordinate and the first color coordinate, the second color coordinate and the third color coordinate of the plane region under the ith view angle.

In this way, the first color coordinate, the second color coordinate and the third color coordinate of the plane area under the ith view angle are obtained, and based on the determined first color coordinate, the second color coordinate and the third color coordinate of the plane area under the ith view angle, the data voltage value corresponding to the first color sub-pixel, the data voltage value corresponding to the second color sub-pixel and the data voltage value corresponding to the third color sub-pixel in the ith sub-area are adjusted so that the ith sub-area reaches the target color coordinate, the chromaticity of the ith sub-area observed by the ith view angle is consistent with the chromaticity of the plane area observed by the front view angle, and therefore the color cast difference between the plane area and the curved surface area of the curved surface display panel when the human eyes observe the curved surface display panel is weakened or even eliminated, the target color coordinate and the chromaticity of different sub-areas in the curved surface area observed by different view angles are consistent, the color cast difference of the curved surface area is weakened or even eliminated, and the display effect of the curved surface display panel is improved.

Since the non-target color coordinates are 0 when the planar area 101 displays the target color solid screen, the target color coordinates of the planar area 101 at a plurality of different viewing angles can be acquired by displaying the target color solid screen. It should be noted that, when the target color is the first color, the non-target color may be the second color and the third color; when the target color is the second color, the non-target color may be the first color and the third color; when the target color is the third color, the non-target color may be the first color and the second color.

Specifically, as shown in fig. 7, according to some embodiments of the present application, optionally, the first color coordinates, the second color coordinates, and the third color coordinates of the planar area at a plurality of different viewing angles may specifically include the following steps S701 to S703.

S701, driving the planar area to display a first color picture, and collecting first color coordinates of the planar area under a plurality of different visual angles when the planar area displays the first color picture, so as to obtain the first color coordinates of the planar area under the plurality of different visual angles.

Specifically, the planar area 101 may be driven by a driving chip (driving IC) or a lighting device to display a first color picture (first color solid color picture). Then, the first color coordinates of the planar area 101 at a plurality of different viewing angles when the first color picture is displayed are acquired by using a combination of the wide-angle lens and the imaging colorimeter, thereby obtaining the first color coordinates of the planar area 101 at a plurality of different viewing angles. Illustratively, the first color coordinates of the planar area 101 at the viewing angle of 0 ° to 60 ° when the first color screen is displayed may be acquired. For example, the red coordinates of the planar region 101 at a plurality of different viewing angles may be acquired by displaying a red solid-color picture.

S702, driving the plane area to display a second color picture, and collecting second color coordinates of the plane area under a plurality of different visual angles when the plane area displays the second color picture, so as to obtain second color coordinates of the plane area under a plurality of different visual angles.

Specifically, the second color screen (second color solid color screen) may be displayed by the driving chip (driving IC) or the lighting device driving planar area 101. Then, the second color coordinates of the planar area 101 at a plurality of different viewing angles when the second color picture is displayed are acquired by using a combination of the wide-angle lens and the imaging colorimeter, thereby obtaining the second color coordinates of the planar area 101 at a plurality of different viewing angles. Illustratively, the second color coordinates of the planar area 101 at the viewing angle of 0 ° to 60 ° when the second color screen is displayed may be acquired. For example, the green coordinates of the planar region 101 at a plurality of different viewing angles may be acquired by displaying a green solid-color picture.

S703, driving the plane area to display a third color picture, and collecting the third color coordinates of the plane area under a plurality of different visual angles when the plane area displays the third color picture, so as to obtain the third color coordinates of the plane area under a plurality of different visual angles.

Specifically, the third color screen (third color solid color screen) can be displayed by the driving chip (driving IC) or the lighting device driving planar area 101. Then, the third color coordinates of the planar area 101 at a plurality of different viewing angles when the third color picture is displayed are acquired by using a combination of the wide-angle lens and the imaging colorimeter, thereby obtaining the third color coordinates of the planar area 101 at a plurality of different viewing angles. Illustratively, the third color coordinates of the planar area 101 at the viewing angle of 0 ° to 60 ° at the time of displaying the third color screen may be acquired. For example, the blue coordinates of the planar region 101 at a plurality of different viewing angles may be acquired by displaying a blue solid-color picture.

As shown in fig. 8, according to some embodiments of the present application, optionally, S103, determining the data voltage value corresponding to each color sub-pixel in the ith sub-area according to the target color coordinate and the chromaticity information of the ith sub-area may specifically include the following steps S801 to S803:

s801, determining the brightness corresponding to each color sub-pixel in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region.

The chromaticity information of the ith sub-area may include a first color coordinate, a second color coordinate, and a third color coordinate of the planar area at the ith viewing angle. In S801, the brightness corresponding to each color sub-pixel in the ith sub-area may be determined according to the target color coordinates and the first, second and third color coordinates of the planar area at the ith viewing angle.

S802, determining the driving current corresponding to each color sub-pixel in the ith sub-area according to a first corresponding relation between the preset brightness of the sub-pixel and the driving current of the sub-pixel and the brightness corresponding to each color sub-pixel in the ith sub-area.

In some specific examples, the expression of the first correspondence may be:

It should be noted that, the driving current corresponding to the first color sub-pixel in the ith sub-area may be determined according to the first corresponding relationship and the brightness corresponding to the first color sub-pixel in the ith sub-area. The driving current corresponding to the second color sub-pixel in the i-th sub-region may be determined according to the first correspondence and the brightness corresponding to the second color sub-pixel in the i-th sub-region. The driving current corresponding to the third color sub-pixel in the i-th sub-region may be determined according to the first correspondence and the brightness corresponding to the third color sub-pixel in the i-th sub-region.

Specifically, for the first color sub-pixel (e.g., red sub-pixel), the above expression (1) can be modified as:

wherein RI _oled Representing the drive current of the first color subpixel in the ith sub-area, RL _oled Representing the brightness of the first color sub-pixel in the i-th sub-region.

For a second color subpixel (e.g., a green subpixel), the above expression (1) can be modified as:

wherein, GI _oled Representing the drive current, GL, of the second color sub-pixel in the ith sub-region _oled Representing the brightness of the second color sub-pixel in the i-th sub-area.

For a third color subpixel (e.g., a blue subpixel), the above expression (1) can be modified as:

wherein BI _oled Representing the drive current of the third color subpixel in the ith sub-area, BL _oled Representing the brightness of the third color sub-pixel in the i-th sub-area.

S803, according to the driving currents corresponding to the sub-pixels of each color in the ith sub-region, determining the data voltage values corresponding to the sub-pixels of each color in the ith sub-region.

In this way, according to the target color coordinates and the chromaticity information of the ith sub-area, the brightness of the sub-pixel is determined first, then the driving current corresponding to the sub-pixel is determined according to the brightness of the sub-pixel, and finally the data voltage value corresponding to each color sub-pixel in the ith sub-area is determined according to the driving current corresponding to the sub-pixel, so that the adjustment of the data voltage value corresponding to each color sub-pixel in the ith sub-area based on the target color coordinates and the chromaticity information of the ith sub-area is realized, the chromaticity of the ith sub-area observed by the ith viewing angle is consistent with the chromaticity of the plane area observed by the front viewing angle, the color cast difference between the plane area and the curved surface area of the curved surface display panel when the human eyes observe the curved surface display panel is reduced or even eliminated, the target color coordinates and the chromaticity of different sub-areas in the curved surface area observed by different viewing angles are consistent, and the color cast difference of the curved surface area is reduced or even eliminated, and the display effect of the curved surface display panel is improved.

For ease of understanding, the detailed implementation of steps S801 and S803 described above will be described in detail below in connection with some specific embodiments.

In some specific embodiments, optionally, S801, determining, according to the target color coordinate and chromaticity information of the ith sub-area, the brightness corresponding to each color sub-pixel in the ith sub-area may specifically include the following steps:

the brightness corresponding to each color sub-pixel in the ith sub-area is determined according to the following expression:

wherein, (W) _x ，W _y ) Representing the target color coordinates, (Rx) ₂ ，Ry ₂ ) Representing the first color coordinates in the ith sub-area, (Gx) ₂ ，Gy ₂ ) Representing the second in the ith sub-areaColor coordinates, (Bx) ₂ ，By ₂ ) Representing the color coordinates of the third color in the ith sub-area, RL ₂ Representing the corresponding luminance, GL, of the first color sub-pixel in the ith sub-region ₂ Representing the corresponding brightness of the second color sub-pixel in the ith sub-area, BL ₂ Representing the brightness corresponding to the third color sub-pixel in the i-th sub-area.

It should be noted that the above expression (5) and expression (6) are simplified expressions, and the expression may be more complicated in practice. In addition, when determining the brightness corresponding to each color sub-pixel in the ith sub-area, the brightness may be determined together with other formulas on the basis of the above expression (5) and expression (6), and the embodiment of the present application is not limited thereto.

In some specific examples, optionally, the target color coordinates (W _x ，W _y ) The target color coordinates when displaying a white screen for the planar area and the curved area may be displayed. That is, the planar area 101 and the curved area 102 are caused to simultaneously display a white screen to adjust color shift.

As shown in fig. 9, in some specific embodiments, optionally, S803, determining the data voltage value corresponding to each color sub-pixel in the ith sub-area according to the driving current corresponding to each color sub-pixel in the ith sub-area specifically includes the following steps:

s901, determining a data voltage value corresponding to a first color sub-pixel in an ith sub-area according to a second corresponding relation between a predetermined driving current of the sub-pixel and a data voltage value of the sub-pixel and a driving current corresponding to the first color sub-pixel in the ith sub-area;

S902, determining a data voltage value corresponding to the second color sub-pixel in the ith sub-region according to the second corresponding relation and the driving current corresponding to the second color sub-pixel in the ith sub-region;

s903, determining a data voltage value corresponding to the third color sub-pixel in the ith sub-area according to the second corresponding relation and the driving current corresponding to the third color sub-pixel in the ith sub-area.

In some specific examples, the expression of the second correspondence may be:

wherein I is _oled Represents the drive current of the sub-pixel, W represents the channel width of the drive transistor, L represents the channel length of the drive transistor, cox represents the gate capacitance, μ represents the mobility, V _DD Representing the value of the forward power supply voltage, V _data Representing the data voltage value of the sub-pixel. W, L, cox, mu, V _DD Are known.

In this way, the data voltage value corresponding to the first color sub-pixel, the data voltage value corresponding to the second color sub-pixel and the data voltage value corresponding to the third color sub-pixel in the ith sub-region are adjusted based on the target color coordinates, so that the ith sub-region reaches the target color coordinates, the chromaticity of the ith sub-region observed by the ith view angle is consistent with the chromaticity of the plane region observed by the front view angle, the color shift difference between the plane region and the curved surface region of the curved surface display panel when the human eyes observe the curved surface display panel is reduced or even eliminated, the target color coordinates and the chromaticity of different sub-regions in the curved surface region observed by different view angles are consistent, the color shift difference of the curved surface region is reduced or even eliminated, and the display effect of the curved surface display panel is improved.

After the data voltage values corresponding to the sub-pixels of each color in the ith sub-region are obtained, the sub-pixels corresponding to the sub-pixels of the corresponding color in the ith sub-region can be driven to emit light according to the data voltage values corresponding to the sub-pixels of each color in the ith sub-region.

The driving process will be described with reference to the hyperboloid display panel shown in fig. 3 and the quadric-surface display panel shown in fig. 10.

As shown in fig. 3, in some embodiments, the display panel 10 may be a hyperboloid display panel, and the hyperboloid display panel may include a planar area 101 and two curved areas 102, and the planar area 101 may be located between the two curved areas 102 along a length direction Y or a width direction x of the hyperboloid display panel. Each sub-region 102a in the curved surface region 102 may include one column of sub-pixels or adjacent columns of sub-pixels.

Correspondingly, S104, driving the curved surface to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-regions, specifically including the following steps: for any ith subarea in the N subareas, driving each column of sub-pixels in the ith subarea to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea.

In other embodiments, as shown in fig. 10, the display panel 10 may be a four-curved display panel. The four-curved display panel may include a planar area 101 and a curved area 102, and the curved area 102 may include opposing first and second curved areas 102A and 102B, and opposing third and fourth curved areas 102C and 102D. Along the width direction X of the hyperboloid display panel, the planar area 101 is located between the opposite first curved surface area 102A and second curved surface area 102B, and each sub-area 102A in the first curved surface area 102A and the second curved surface area 102B may include one column of sub-pixels or adjacent columns of sub-pixels. Along the length direction Y of the hyperboloid display panel, the planar area 101 is located between the opposite third curved surface area 102C and fourth curved surface area 102D, and each sub-area 102a of the third curved surface area 102C and fourth curved surface area 102D may include one row of sub-pixels or adjacent rows of sub-pixels.

Correspondingly, S104, driving the curved surface to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-regions, specifically including the following steps:

for any ith subarea in the first curved surface area or the second curved surface area, driving each row of sub-pixels in the ith subarea in the first curved surface area or the second curved surface area to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea in the first curved surface area or the second curved surface area;

And for any ith subarea in the third curved surface area or the fourth curved surface area, driving each row of sub-pixels in the ith subarea in the third curved surface area or the fourth curved surface area to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea in the third curved surface area or the fourth curved surface area.

Based on the driving method of the display panel provided by the embodiment, correspondingly, the application further provides a specific implementation mode of the driving device of the display panel. As described above, the display panel includes the planar area and the curved area, the curved area includes N sub-areas, and N is a positive integer.

As shown in fig. 11, the driving device 110 of the display panel provided in the embodiment of the application includes the following modules:

an obtaining module 1101, configured to obtain chromaticity information of the planar area under a plurality of different viewing angles, where a viewing angle is an angle between a line of sight and a first direction perpendicular to the planar area;

the first determining module 1102 is configured to, for any ith view angle of the multiple different view angles, use chromaticity information of the planar area under the ith view angle as chromaticity information of an ith sub-area in the curved area, where the ith sub-area is a sub-area in which an included angle between a tangential direction of a sub-area in the N sub-areas and the first direction is equal to the ith view angle;

a second determining module 1103, configured to determine data voltage values corresponding to each color sub-pixel in the ith sub-region according to the target color coordinates and chromaticity information of the ith sub-region;

the driving module 1104 is configured to drive the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas.

In the driving device for a display panel of the embodiment of the present application, the obtaining module 1101 is configured to obtain chromaticity information of a planar area under a plurality of different viewing angles, where the viewing angle is an angle between a line of sight and a first direction perpendicular to the planar area; the first determining module 1102 is configured to, for any ith view angle of the multiple different view angles, use chromaticity information of the planar area under the ith view angle as chromaticity information of an ith sub-area in the curved area, where the ith sub-area is a sub-area in which an included angle between a tangential direction of a sub-area in the N sub-areas and the first direction is equal to the ith view angle; the second determining module 1103 is configured to determine a data voltage value corresponding to each color sub-pixel in the ith sub-region according to the target color coordinate and chromaticity information of the ith sub-region; the driving module 1104 is configured to drive the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas. The chromaticity information of the plane area under the ith view angle is used as the chromaticity information of the ith subarea in the curved surface area, and the data voltage values corresponding to the color sub-pixels in the ith subarea are adjusted to enable the ith subarea to reach the target color coordinates, which is equivalent to enabling the chromaticity of the ith subarea observed by the ith view angle to be consistent with the chromaticity of the plane area observed by the front view angle, so that the color cast difference between the plane area and the curved surface area of the curved surface display panel when human eyes observe the curved surface display panel is weakened or even eliminated, the target color coordinates and the chromaticity of different subareas in the curved surface area observed by different view angles are consistent, the color cast difference of the curved surface area is weakened or even eliminated, and the display effect of the curved surface display panel is further improved.

In some embodiments, the obtaining module 1101 is specifically configured to obtain the first color coordinates, the second color coordinates, and the third color coordinates of the planar area under a plurality of different viewing angles. The second determining module 1103 is specifically configured to determine a data voltage value corresponding to the first color sub-pixel, a data voltage value corresponding to the second color sub-pixel, and a data voltage value corresponding to the third color sub-pixel in the ith sub-area according to the target color coordinate and the first color coordinate, the second color coordinate, and the third color coordinate of the planar area under the ith viewing angle.

In some embodiments, the obtaining module 1101 is specifically configured to drive the planar area to display a first color picture, and collect first color coordinates of the planar area under a plurality of different viewing angles when the planar area displays the first color picture, so as to obtain first color coordinates of the planar area under the plurality of different viewing angles; driving the planar area to display a second color picture, and collecting second color coordinates of the planar area under a plurality of different visual angles when the planar area displays the second color picture to obtain second color coordinates of the planar area under a plurality of different visual angles; and driving the planar area to display a third color picture, and collecting the third color coordinates of the planar area under a plurality of different visual angles when the third color picture is displayed, so as to obtain the third color coordinates of the planar area under a plurality of different visual angles.

In some embodiments, the second determining module 1103 is specifically configured to determine, according to the target color coordinate and chromaticity information of the i-th sub-area, a luminance corresponding to each color sub-pixel in the i-th sub-area; determining the driving current corresponding to each color sub-pixel in the ith sub-area according to a first corresponding relation between the preset brightness of the sub-pixel and the driving current of the sub-pixel and the brightness corresponding to each color sub-pixel in the ith sub-area; and determining the data voltage value corresponding to each color sub-pixel in the ith sub-region according to the driving current corresponding to each color sub-pixel in the ith sub-region.

In some embodiments, the expression of the first correspondence is:

In some embodiments, the second determining module 1103 is specifically configured to determine the brightness corresponding to each color sub-pixel in the ith sub-area according to the following expression:

In some embodiments, the target color coordinates are those of when the planar area and the curved area display a white screen.

In some embodiments, the second determining module 1103 is specifically configured to determine the data voltage value corresponding to the first color sub-pixel in the i-th sub-area according to a second corresponding relationship between the predetermined driving current of the sub-pixel and the data voltage value of the sub-pixel and the driving current corresponding to the first color sub-pixel in the i-th sub-area; determining a data voltage value corresponding to the second color sub-pixel in the ith sub-region according to the second corresponding relation and the driving current corresponding to the second color sub-pixel in the ith sub-region; and determining a data voltage value corresponding to the third color sub-pixel in the ith sub-area according to the second corresponding relation and the driving current corresponding to the third color sub-pixel in the ith sub-area.

In some embodiments, the expression of the second correspondence is:

In some embodiments, the display panel comprises a hyperboloid display panel comprising a planar region and two curved regions, the planar region being located between the two curved regions along a length or width direction of the hyperboloid display panel; each sub-region in the curved surface region includes one column of sub-pixels or adjacent columns of sub-pixels. The driving module 1104 is specifically configured to: for any ith subarea in the N subareas, driving each column of sub-pixels in the ith subarea to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea.

In some embodiments, the display panel comprises a four-curved display panel comprising a planar region and a curved region, the curved region comprising opposing first and second curved regions, and opposing third and fourth curved regions; along the width direction of the hyperboloid display panel, the plane area is positioned between the opposite first curved surface area and the second curved surface area, and each sub-area in the first curved surface area and the second curved surface area comprises one row of sub-pixels or adjacent rows of sub-pixels; along the length direction of the hyperboloid display panel, the plane area is positioned between the opposite third curved surface area and the fourth curved surface area, and each sub-area in the third curved surface area and the fourth curved surface area comprises one row of sub-pixels or adjacent rows of sub-pixels; the driving module 1104 is specifically configured to: for any ith subarea in the first curved surface area or the second curved surface area, driving each row of sub-pixels in the ith subarea in the first curved surface area or the second curved surface area to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea in the first curved surface area or the second curved surface area; and for any ith subarea in the third curved surface area or the fourth curved surface area, driving each row of sub-pixels in the ith subarea in the third curved surface area or the fourth curved surface area to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea in the third curved surface area or the fourth curved surface area.

The modules/units in the apparatus shown in fig. 11 have functions of implementing the steps in fig. 3, and achieve corresponding technical effects, which are not described herein for brevity.

Based on the driving method of the display panel provided by the embodiment, correspondingly, the application further provides a specific implementation mode of the electronic equipment. Please refer to the following examples.

Fig. 12 shows a schematic hardware structure of an electronic device according to an embodiment of the present application.

The electronic device may include a processor 1201 and a memory 1202 storing computer program instructions.

In particular, the processor 1201 may include a central processing unit (Central Processing Unit, CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured as one or more integrated circuits implementing embodiments of the present application.

Memory 1202 may include mass storage for data or instructions. By way of example, and not limitation, memory 1202 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) Drive, or a combination of two or more of the above. In one example, the memory 1202 may include removable or non-removable (or fixed) media, or the memory 1202 is a non-volatile solid state memory. Memory 1202 may be internal or external to the integrated gateway disaster recovery device.

In one example, memory 1202 may be Read Only Memory (ROM). In one example, the ROM may be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

Memory 1202 may include Read Only Memory (ROM), random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by one or more processors) it is operable to perform the operations described with reference to a method in accordance with an aspect of the application.

The processor 1201 reads and executes the computer program instructions stored in the memory 1202 to implement the methods/steps S101 to S104 in the embodiment shown in fig. 3, and achieves the corresponding technical effects achieved by executing the methods/steps thereof in the embodiment shown in fig. 3, which are not described herein for brevity.

In one example, the electronic device may also include a communication interface 1203 and a bus 1210. As shown in fig. 12, the processor 1201, the memory 1202, and the communication interface 1203 are connected to each other via a bus 1210 and perform communication with each other.

The communication interface 1203 is mainly used for implementing communication among the modules, devices, units and/or apparatuses in the embodiment of the present application.

Bus 1210 includes hardware, software, or both, coupling components of an electronic device to each other. By way of example, and not limitation, the buses may include an accelerated graphics port (Accelerated Graphics Port, AGP) or other graphics Bus, an enhanced industry standard architecture (Extended Industry Standard Architecture, EISA) Bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an industry standard architecture (Industry Standard Architecture, ISA) Bus, an infiniband interconnect, a Low Pin Count (LPC) Bus, a memory Bus, a micro channel architecture (MCa) Bus, a Peripheral Component Interconnect (PCI) Bus, a PCI-Express (PCI-X) Bus, a Serial Advanced Technology Attachment (SATA) Bus, a video electronics standards association local (VLB) Bus, or other suitable Bus, or a combination of two or more of the above. Bus 1210 may include one or more buses, where appropriate. Although embodiments of the application have been described and illustrated with respect to a particular bus, the application contemplates any suitable bus or interconnect.

In addition, in combination with the driving method of the display panel in the above embodiment, the embodiment of the present application may be implemented by providing a computer-readable storage medium. The computer readable storage medium has stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement a method of driving any of the display panels of the above embodiments. Examples of computer readable storage media include non-transitory computer readable storage media such as electronic circuits, semiconductor memory devices, ROMs, random access memories, flash memories, erasable ROMs (EROM), floppy disks, CD-ROMs, optical disks, hard disks.

It should be understood that the application is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, after appreciating the spirit of the present application.

The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.

It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.

Aspects of the present application are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations 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, 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, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to being, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.

Claims

1. A driving method of a display panel, wherein the display panel includes a planar area and a curved area, the curved area includes N sub-areas, and N is a positive integer, the method comprising:

acquiring chromaticity information of the plane area under a plurality of different view angles, wherein the view angles are angles between a sight line and a first direction perpendicular to the plane area;

for any ith view angle in a plurality of different view angles, taking chromaticity information of the plane area under the ith view angle as chromaticity information of an ith sub-area in the curved surface area, wherein the ith sub-area is a sub-area with an included angle between the tangential direction of the sub-area in the N sub-areas and the first direction being equal to the ith view angle;

Determining data voltage values corresponding to all color sub-pixels in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region;

and driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas.

2. The method according to claim 1, wherein the obtaining chromaticity information of the planar region at a plurality of different viewing angles specifically comprises:

acquiring a first color coordinate, a second color coordinate and a third color coordinate of the plane area under a plurality of different visual angles;

the determining a data voltage value corresponding to each color sub-pixel in the ith sub-region according to the target color coordinate and the chromaticity information of the ith sub-region specifically includes:

3. The method according to claim 1, wherein the acquiring the first, second and third color coordinates of the planar region at a plurality of different viewing angles comprises:

Driving the plane area to display a first color picture, and collecting first color coordinates of the plane area under a plurality of different visual angles when the first color picture is displayed, so as to obtain first color coordinates of the plane area under a plurality of different visual angles;

driving the plane area to display a second color picture, and collecting second color coordinates of the plane area under a plurality of different visual angles when the second color picture is displayed, so as to obtain second color coordinates of the plane area under a plurality of different visual angles;

and driving the plane area to display a third color picture, and collecting third color coordinates of the plane area under a plurality of different visual angles when the third color picture is displayed, so as to obtain the third color coordinates of the plane area under a plurality of different visual angles.

4. The method according to claim 1, wherein the determining the data voltage value corresponding to each color sub-pixel in the i-th sub-area according to the target color coordinates and the chromaticity information of the i-th sub-area specifically includes:

determining the brightness corresponding to each color sub-pixel in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region;

Determining the driving current corresponding to each color sub-pixel in the ith sub-area according to a first corresponding relation between the preset brightness of the sub-pixel and the driving current of the sub-pixel and the brightness corresponding to each color sub-pixel in the ith sub-area;

and determining data voltage values corresponding to the sub-pixels of each color in the ith sub-region according to the driving currents corresponding to the sub-pixels of each color in the ith sub-region.

5. The method of claim 4, wherein the first correspondence is expressed as:

6. The method according to claim 4, wherein determining the brightness corresponding to each color sub-pixel in the i-th sub-area according to the target color coordinates and the chromaticity information of the i-th sub-area specifically includes:

determining the brightness corresponding to each color sub-pixel in the ith sub-area according to the following expression:

7. The method of claim 6, wherein the target color coordinates are target color coordinates when the planar area and the curved area display a white picture.

8. The method according to claim 4, wherein the determining the data voltage value corresponding to each color sub-pixel in the i-th sub-area according to the driving current corresponding to each color sub-pixel in the i-th sub-area specifically comprises:

determining a data voltage value corresponding to a first color sub-pixel in the ith sub-area according to a second corresponding relation between a predetermined driving current of the sub-pixel and a data voltage value of the sub-pixel and a driving current corresponding to the first color sub-pixel in the ith sub-area;

determining a data voltage value corresponding to a second color sub-pixel in the ith sub-region according to the second corresponding relation and the driving current corresponding to the second color sub-pixel in the ith sub-region;

And determining a data voltage value corresponding to the third color sub-pixel in the ith sub-region according to the second corresponding relation and the driving current corresponding to the third color sub-pixel in the ith sub-region.

9. The method of claim 8, wherein the expression of the second correspondence is:

10. The method of claim 1, wherein the display panel comprises a hyperboloid display panel comprising the planar area and two of the curved areas, the planar area being located between the two curved areas along a length direction or a width direction of the hyperboloid display panel;

each of the sub-regions in the curved surface region comprises a column of sub-pixels or adjacent columns of sub-pixels;

the driving the curved surface to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-regions specifically includes:

And for any ith subarea in the N subareas, driving each column of sub-pixels in the ith subarea to emit light according to the data voltage value corresponding to each color sub-pixel in the ith subarea.

11. The method of claim 1, wherein the display panel comprises a four-curved display panel comprising the planar region and the curved region, the curved region comprising opposing first and second curved regions, and opposing third and fourth curved regions;

the plane area is positioned between the first curved surface area and the second curved surface area which are opposite to each other along the width direction of the four-curved surface display panel, and each subarea in the first curved surface area and the second curved surface area comprises one row of subpixels or adjacent multiple rows of subpixels;

the plane area is positioned between the third curved surface area and the fourth curved surface area which are opposite to each other along the length direction of the four-curved surface display panel, and each subarea in the third curved surface area and the fourth curved surface area comprises one row of subpixels or adjacent rows of subpixels;

the driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas specifically includes:

12. A driving device for a display panel, wherein the display panel includes a planar area and a curved area, the curved area includes N sub-areas, and N is a positive integer, the device comprising:

the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring chromaticity information of the plane area under a plurality of different visual angles, and the visual angles are angles between a sight line and a first direction perpendicular to the plane area;

the first determining module is used for regarding any ith view angle in a plurality of different view angles, taking chromaticity information of the plane area under the ith view angle as chromaticity information of an ith sub-area in the curved surface area, wherein the ith sub-area is a sub-area with an included angle between the tangential direction of the sub-areas in the N sub-areas and the first direction being equal to the ith view angle;

The second determining module is used for determining data voltage values corresponding to all color sub-pixels in the ith sub-region according to the target color coordinates and the chromaticity information of the ith sub-region;

and the driving module is used for driving the curved surface area to emit light according to the data voltage values corresponding to the sub-pixels of each color in the N sub-areas.

13. A computer-readable storage medium, on which a computer program is stored, which when being executed by a processor, implements the steps of the method of driving a display panel according to any one of claims 1 to 11.