Sub-pixel array, array substrate and display panel

Abstract

The invention provides a sub-pixel array, an array substrate and a display panel, and relates to the technical field of display, the sub-pixel array comprises a first red sub-pixel, a first green sub-pixel, a first blue sub-pixel and a second blue sub-pixel which have the same shape and area and are in an N-polygon shape or a circle shape, N is a multiple of 3, and n is a positive integer. The first red sub-pixel and the first green sub-pixel are arranged along a first direction, the first blue sub-pixel and the second blue sub-pixel are arranged along a second direction, the first red sub-pixel comprises three second red sub-pixels with the same shape and area, the first green sub-pixel comprises three second green sub-pixels with the same shape and area, and the third red sub-pixel comprises three second blue sub-pixels with the same shape and area. The first blue sub-pixel comprises two third blue sub-pixels which are the same in shape and area, the second blue sub-pixel comprises a fourth blue sub-pixel and a fifth blue sub-pixel, and the fourth blue sub-pixel and the fifth blue sub-pixel are the same in shape and area. Based on the sub-pixel array, the service life of the OLED display device can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of display technology, and more specifically, to a sub-pixel array, an array substrate and a display panel. Background Art

[0002] Organic light-emitting diode (OLED) display devices have the advantages of bright colors, high contrast, fast response, low power consumption, thin and light, and flexible display. However, since OLED display devices use organic materials, they are easily affected by environmental factors such as oxidation and humidity, resulting in a relatively short service life of the display devices. Long-term use may cause "screen burn-in".

[0003] In view of this, how to extend the service life of OLED display devices is an urgent problem to be solved. Summary of the invention

[0004] The present application provides a sub-pixel array, an array substrate and a display panel, which help to reduce the current density given to the blue sub-pixel, thereby reducing the loss rate of the blue sub-pixel, thereby extending the service life of the OLED display device.

[0005] In a first aspect, a subpixel array is provided, comprising: a first red subpixel, a first green subpixel, a first blue subpixel, and a second blue subpixel; the first red subpixel, the first green subpixel, the first blue subpixel, and the second blue subpixel are N-gons or circles with the same shape and area, N is a multiple of 3, the first red subpixel and the first green subpixel are arranged along a first direction, and the first blue subpixel and the second blue subpixel are arranged along a second direction, wherein the first red subpixel includes three second red subpixels with the same shape and area, the first green subpixel includes three second green subpixels with the same shape and area, the first blue subpixel includes two third blue subpixels with the same shape and area, the second blue subpixel includes a fourth blue subpixel and a fifth blue subpixel, and the fourth blue subpixel and the fifth blue subpixel have the same shape and area.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the second red sub-pixel is used to constitute a first part of the pixel, the second green sub-pixel is used to constitute a second part of the pixel, the third blue sub-pixel or the fourth blue sub-pixel is used to constitute a third part of the pixel, and the fifth blue sub-pixel is used to compensate for blue light for adjacent pixels.

[0007] In combination with the first aspect, in some implementations of the first aspect, the sub-pixel array includes red, green and blue (RGB) pixels, and the RGB pixels include one second red sub-pixel, one second green sub-pixel and a fourth blue sub-pixel.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the luminance of the third blue sub-pixel, the fourth blue sub-pixel, and the fifth blue sub-pixel is respectively less than the luminance of the second red sub-pixel and / or the second green sub-pixel.

[0009] In combination with the first aspect, in some implementations of the first aspect, the first direction is parallel to the second direction.

[0010] In combination with the first aspect, in some implementations of the first aspect, the N-gon is a regular N-gon.

[0011] In combination with the first aspect, in some implementations of the first aspect, the sub-pixel array emits light based on an organic light emitting diode (OLED).

[0012] In a second aspect, an array substrate is provided, comprising K sub-pixel arrays in any possible implementation of the sub-pixel array design of the first aspect, the sub-pixels in the K sub-pixel arrays are arranged in the same manner, and the K sub-pixel arrays are closely arranged, and K is greater than 1.

[0013] In a third aspect, a display panel is provided, comprising an array substrate in any possible implementation of the array substrate design in the second aspect.

[0014] In a fourth aspect, a method for controlling pixel light emission is provided, which is applied to an array substrate in any possible implementation of the array substrate design in the second aspect, or a display panel in any possible implementation of the display panel design in the third aspect, the method comprising: sending a first light emission signal to a first red sub-pixel, the first light emission signal being used to drive the first red sub-pixel to emit light at a first brightness; sending a second light emission signal to a first green sub-pixel, the second light emission signal being used to drive the first green sub-pixel to emit light at a second brightness; sending a third light emission signal to a first blue sub-pixel, the third light emission signal being used to drive the first blue sub-pixel to emit light at a third brightness; sending a fourth light emission signal to a second blue sub-pixel, the fourth light emission signal being used to drive the second blue sub-pixel to emit light at a fourth brightness; wherein the third brightness and the fourth brightness are respectively less than the first brightness and / or the second brightness.

[0015] In a fifth aspect, a device for controlling pixel light emission is provided, comprising a processor and a memory, wherein the processor and the memory are connected, wherein the memory is used to store program code, and the processor is used to call the program code to execute a method in any possible implementation of the method design of the fourth aspect.

[0016] In a sixth aspect, a computer-readable storage medium is provided, storing a computer program, wherein the computer program is executed by a processor to implement a method in any possible implementation manner in the method design of the fourth aspect.

[0017] In a seventh aspect, a computer program product is provided, comprising instructions, which, when executed by a processor, enable a computer to execute a method in any possible implementation of the method design of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a pixel matrix arrangement of a display area applicable to an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of RGB organic material pixel color distribution applicable to an embodiment of the present application;

[0020] Figure 3 is a schematic structural diagram of a sub-pixel array 300 proposed in an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of sub-pixel division proposed in an embodiment of the present application;

[0022] Figure 5 is a partial schematic diagram of a pixel matrix including a sub-pixel array 300 proposed in an embodiment of the present application;

[0023] Figure 6 is a schematic diagram of the relationship between a sub-pixel and a complete pixel proposed in an embodiment of the present application;

[0024] Figure 7 Schematic diagram of a division method based on triangular sub-pixels proposed in an embodiment of the present application;

[0025] Figure 8 Schematic diagram of a division method based on enneagonal sub-pixels proposed in an embodiment of the present application;

[0026] Fig. 9 is a schematic structural diagram of another sub-pixel array 900 proposed in an embodiment of the present application;

[0027] Fig.10 It is a schematic diagram of the structure of another sub-pixel array 1000 proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0029] The embodiments of the present application will present various aspects, embodiments or features around a system including multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all devices, components, modules, etc. discussed in conjunction with the figures. In addition, combinations of these schemes may also be used.

[0030] In addition, in the embodiments of the present application, words such as "exemplary" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0031] The business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the evolution of technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0032] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0033] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can be represented by: including the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0034] In the description of the embodiments of the present application, the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "inside", "outside", "vertical" and "horizontal" are defined relative to the directions or positions of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, rather than indicating or implying that the device or component referred to must have a specific direction, or be constructed and operated in a specific direction. They may change accordingly according to changes in the directions of the components placed in the drawings, and therefore cannot be understood as limitations on the present application.

[0035] In the embodiments of the present application, the same reference numerals are used to represent the same components or parts. For the same parts in the embodiments of the present application, only one of the parts or parts may be marked with a reference numeral in the figure. It should be understood that the reference numerals are also applicable to other identical parts or parts. In addition, the various parts in the drawings are not drawn to scale, and the sizes and dimensions of the parts shown in the drawings are only exemplary and should not be understood as limiting the present application.

[0036] Since the active matrix organic light emitting diode (AMOLED) panel was applied to display devices, OLED-based display technology has received widespread attention. Compared with liquid crystal display (LCD), OLED display devices have advantages such as bright colors, high contrast, fast response, low power consumption, thin and flexible display. However, the service life of OLED display devices is shorter than that of LCD. This is because LCD uses more stable inorganic materials, while OLED display devices use organic materials, which are more susceptible to environmental factors such as oxidation and humidity, resulting in a relatively short service life of OLED display devices. If used for a long time, "burn-in" phenomenon will occur.

[0037] The following explains why OLED display devices have a short service life.

[0038] Taking RGB pixels as an example, each complete pixel in the pixel array of the display panel includes one red (red, R) sub-pixel, one green (green, G) sub-pixel and one blue (blue, B) sub-pixel.

[0039] Based on the principle of pixel light emission, it can be known that since the light emission efficiency of the blue sub-pixel is relatively low, in order to achieve the same or similar brightness as the sub-pixels of other colors, a higher current density is usually required for the blue sub-pixel. This is because the energy band gap of the blue OLED material (corresponding to the blue sub-pixel) is wider, and more energy is required to stimulate the generation of blue photons during the electron transition process, that is, the blue OLED material has a certain gap in light emission efficiency and material stability compared to the red and green OLED materials (corresponding to the red sub-pixel and the green sub-pixel).

[0040] Since the luminous efficiency of blue OLED materials is low and organic materials are more susceptible to environmental factors such as air oxidation, temperature, humidity, etc., which further accelerates the aging process of blue OLED materials, the current density of blue sub-pixels may be higher than that of green and red sub-pixels at the same brightness.

[0041] In view of this, an embodiment of the present application proposes a pixel array, which divides sub-pixels of multiple colors respectively through a specific sub-pixel division method so that there is a specific aperture ratio ratio relationship between the sub-pixels of each color, and through a specific sub-pixel arrangement method, in each smaller sub-pixel obtained by division, not only sub-pixels used to constitute a complete pixel are included, but also at least one blue sub-pixel that is not used to constitute a complete pixel is included, which is used to perform blue light compensation for the complete pixel adjacent to the blue sub-pixel. Due to the existence of blue light compensation, the current density based on each blue sub-pixel can be reduced, thereby extending the service life of the blue sub-pixel (or the OLED device used for blue sub-pixel light emission).

[0042] Figure 1 It is a schematic diagram of a display area pixel matrix arrangement applicable to an embodiment of the present application.

[0043] refer to Figure 1 As shown, the pixel matrix area is based on polygons, for example Figure 1 The hexagons shown in the figure are arranged by being cross-extended horizontally and vertically to form a pixel matrix area.

[0044] Taking RGB pixels as an example, Figure 1 In the pixel matrix area shown, one hexagon can correspond to one color, for example, red, green or blue. Then for a complete RGB pixel, the RGB pixel can be composed of three hexagons, each of which can be called a sub-pixel of the RGB pixel. Based on this, it can be seen that an RGB pixel is composed of one red (red, R) sub-pixel, one green (green, G) sub-pixel and one blue (blue, B) sub-pixel.

[0045] Figure 2 This is a schematic diagram of RGB organic material pixel color distribution applicable to an embodiment of the present application.

[0046] It should be understood that Figure 2 The RGB organic materials shown can be formed on the surface of the light-emitting device by evaporation technology to form sub-pixels of corresponding colors.

[0047] refer to Figure 2 As shown, based on the evaporation results of the organic material in the figure, it can be seen that the red sub-pixels and the green sub-pixels are arranged alternately, occupying a row of sub-pixel areas extending along the first oblique direction, while the blue sub-pixels alone occupy a row of sub-pixel areas extending along the second oblique direction, and the first oblique direction and the second oblique direction are parallel but do not overlap.

[0048] The red and green sub-pixel rows and the blue sub-pixel rows are also alternately arranged along a third oblique direction, thereby forming the above Figure 2 The RGB organic material pixel color distribution result is shown. Wherein, the third oblique direction intersects with the second oblique direction or the first oblique direction.

[0049] It should be noted that the complete pixel can also be in other color composition forms, such as red yellow blue (RYB) RGGB, RYYB, RGBW, etc., where W refers to white. It is conceivable that the technical solutions of the following embodiments can be implemented based on other color composition forms, and only the aperture ratio of each sub-pixel is adjusted as needed, and the arrangement of the sub-pixels is adaptively adjusted. These are what those skilled in the art can think of based on the technical solutions mentioned in the embodiments of the present application. Therefore, applying the technical solutions of the embodiments of the present application to pixels composed of other colors also falls within the protection scope of the embodiments of the present disclosure.

[0050] Figure 3 is a schematic diagram of the structure of a sub-pixel array 300 proposed in an embodiment of the present application. Figure 3 The illustrated sub-pixel array 300 is suitable for use in a display panel based on RGB pixels.

[0051] refer to Figure 3 As shown, the sub-pixel array 300 includes: a first red sub-pixel 310, a first green sub-pixel 320, a first blue sub-pixel 330 and a second blue sub-pixel 340;

[0052] The first red sub-pixel 310, the first green sub-pixel 320, the first blue sub-pixel 330, and the second blue sub-pixel 340 are N-gons or circles with the same shape and area, where N is a multiple of 3. The first red sub-pixel 310 and the first green sub-pixel 320 are arranged along a first direction, and the first blue sub-pixel 330 and the second blue sub-pixel 340 are arranged along a second direction.

[0053] Among them, the first red sub-pixel 310 includes three second red sub-pixels 311 with the same shape and area, the first green sub-pixel 320 includes three second green sub-pixels 321 with the same shape and area, the first blue sub-pixel 330 includes two third blue sub-pixels 331 with the same shape and area, and the second blue sub-pixel 340 includes a fourth blue sub-pixel 341 and a fifth blue sub-pixel 342, and the fourth blue sub-pixel 341 and the fifth blue sub-pixel 342 have the same shape and area.

[0054] In some possible embodiments, the first direction is parallel to the second direction. Of course, in other pixel arrangements, the relationship between the first direction and the second direction may be adaptively adjusted, that is, the first direction and the second direction may not be parallel.

[0055] In some possible embodiments, when the sub-pixel array 300 is applied to the above Figure 1 In the pixel matrix shown, the first direction and the second direction can be Figure 1 The sub-pixels are arranged in a direction where the first oblique direction corresponds to the second oblique direction.

[0056] In some possible embodiments, when the first red sub-pixel 310 is composed of three second red sub-pixels 311 having the same shape and area, for example Figure 3 The second red sub-pixel 311 shown in FIG, then it means that the aperture ratio of the first red sub-pixel 310 is 1 / 3, and the same is true for the first green sub-pixel 320. Similarly, when the first blue sub-pixel 330 is composed of two third blue sub-pixels 331 of the same shape and area, then it means that the aperture ratio of the first blue sub-pixel 330 is 1 / 2, and the same is true for the second blue sub-pixel 340.

[0057] It should be noted that, taking OLED devices as an example, the aperture ratio of a sub-pixel refers to the ratio of the gap area between the organic light-emitting material and the transparent electrode in the OLED display to the entire sub-pixel area. In other words, the aperture ratio measures the ratio between the effective area of ​​the sub-pixel that can actually emit light and the entire sub-pixel area. Furthermore, the aperture ratio can also be expressed by the ratio of the sub-pixel area obtained after division to the sub-pixel area before division.

[0058] refer to Figure 3 As shown, the sub-pixels (310 to 340) of the above-mentioned respective colors may be in a hexagonal shape. For the convenience of description, the sub-pixel array 300 is described in detail below by taking the sub-pixel as a hexagonal shape as an example.

[0059] In some possible embodiments, when the shape of the sub-pixel is a hexagon, the above-mentioned division of the sub-pixels of each color (310 to 340) can adopt the principle of hexagonal polygonal cutting to adjust the aperture ratios of the sub-pixels of the three colors of one RGB pixel. The adjusted aperture ratios of the first red sub-pixel 310, the first green sub-pixel 320, and the first blue sub-pixel 330 or the second blue sub-pixel 340 are in the ratio of: (1 / 3):(1 / 3):(1 / 2), that is, the aperture ratios of the first blue sub-pixel 330 and the second blue sub-pixel 340 are 1 / 6 larger than the aperture ratios of the first red sub-pixel 310 and the first green sub-pixel 320.

[0060] The above hexagonal polygon cutting principle includes two cutting methods:

[0061] One is the cutting method starting from a vertex: starting from a vertex of a hexagon, you can connect lines with other non-adjacent vertices (i.e. vertices separated by one vertex), so that the hexagon can be divided into several triangles. That is, starting from a vertex, you can connect three diagonal lines (i.e. lines separated by one vertex), so that the hexagon can be divided into four triangles.

[0062] The other is the internal point cutting method: take any reference point inside the hexagon, for example, the center point or centroid of the hexagon, and then connect the point with the vertices of the hexagon, which can also divide the hexagon into 6 triangles.

[0063] The following is an example of dividing each color sub-pixel using the above internal point cutting method.

[0064] Figure 4 This is a schematic diagram of sub-pixel division proposed in an embodiment of the present application.

[0065] refer to Figure 4 As shown, the hexagon in the figure can be used to represent a sub-pixel of any color proposed in the embodiment of the present application. Then, the center point or centroid of the hexagon is determined as a reference point for the internal point cutting method, and then the reference point is connected to each vertex of the hexagon, so as to divide the hexagon into 6 triangular areas. Then, by allocating the number of triangular areas corresponding to the sub-pixels (also called sub-sub-pixels) obtained after the division, the aperture ratio corresponding to the sub-pixel is determined.

[0066] In this embodiment, the division of sub-pixels may include two division forms. One is to use a parallelogram formed by two adjacent triangular areas included in the sub-pixel as the divided sub-pixel. This sub-pixel division method is applicable to the first red sub-pixel 310 and the first green sub-pixel 320 in the embodiment of the present application; the other is to use a trapezoid formed by three adjacent triangular areas included in the sub-pixel as the divided sub-pixel. This sub-pixel division method is applicable to the first blue sub-pixel 330 and the second blue sub-pixel 340 in the embodiment of the present application.

[0067] It should be understood that the sub-pixel array 300 proposed in the embodiment of the present application can be used to form a pixel matrix (or pixel array). For example, a plurality of sub-pixel arrays 300 are closely arranged to form the above-mentioned Figure 1 or Figure 2 The pixel matrix shown.

[0068] Figure 5 It is a partial schematic diagram of a pixel matrix including a sub-pixel array 300 proposed in an embodiment of the present application.

[0069] In some possible embodiments, reference Figure 5 As shown, the object included in the dotted line is the above-mentioned sub-pixel array 300. In a sub-pixel array 300, the second red sub-pixel 311 is used to constitute the first part of the pixel, the second green sub-pixel 321 is used to constitute the second part of the pixel, the third blue sub-pixel 331 or the fourth blue sub-pixel 341 is used to constitute the third part of the pixel, and the fifth blue sub-pixel 342 is used to compensate blue light for adjacent pixels (or sub-pixels).

[0070] In some possible embodiments, the above-mentioned pixel may be an RGB pixel. Then, for the RGB pixel, the first part of the above-mentioned pixel refers to the red part of the RGB pixel, the second part of the above-mentioned pixel refers to the green part of the RGB pixel; and the third part of the above-mentioned pixel refers to the blue part of the RGB pixel.

[0071] In addition, the first red sub-pixel 310 in the sub-pixel array 300 includes three second red sub-pixels 311, so these three second red sub-pixels can be used to constitute different RGB pixels (used to constitute the red parts of different RGB pixels), and the same is true for the first green sub-pixel 320; the two third blue sub-pixels 331 included in the first blue sub-pixel 330 and the one fourth blue sub-pixel 341 included in the second blue sub-pixel 340 can be used to constitute different RGB pixels (used to constitute the blue parts of different RGB pixels), respectively.

[0072] Figure 6 Schematic diagram of the relationship between a sub-pixel and a complete pixel proposed in an embodiment of the present application. Figure 6 The complete pixels in are RGB pixels.

[0073] Figure 6 FIG. 1 is a schematic diagram of four sub-pixel arrays 300 included in a partial pixel matrix. For the sake of distinction, the four sub-pixel arrays 300 are numbered differently in this embodiment, that is, the four sub-pixel arrays are marked as: 300 / 1, 300 / 2, 300 / 3, 300 / 4. Figure 6 , the second red sub-pixel included in the sub-pixel array 300 / 1 is marked as 311 / 1, the second green sub-pixel included in the sub-pixel array 300 / 1 is marked as 321 / 1, the third blue sub-pixel included in the sub-pixel array 300 / 1 is marked as 331 / 1, the fourth blue sub-pixel included in the sub-pixel array 300 / 1 is marked as 341 / 1, and the fifth blue sub-pixel included in the sub-pixel array 300 / 1 is marked as 342 / 1. The same is true for the remaining sub-pixel arrays, which are not listed in detail here.

[0074] exist Figure 6 In the figure, the sub-pixels indicated by the three vertices of the triangle indicated by the dotted lines are used to form a complete RGB pixel. Taking the sub-pixel arrays 300 / 1 to 300 / 4 as an example, the sub-pixels of each color are used to form a complete pixel as follows:

[0075] One second red sub-pixel 311 / 2 (for the convenience of description, the description is subsequently simplified to represent the combination of sub-pixels and figure numbers), one sub-pixel 321 / 2 and one sub-pixel 341 / 2 are used to constitute one RGB pixel;

[0076] One sub-pixel 311 / 2, one sub-pixel 321 / 1 and one sub-pixel 331 / 2 are used to form one RGB pixel;

[0077] One sub-pixel 311 / 1, one sub-pixel 321 / 1, and one sub-pixel 341 / 1 are used to form one RGB pixel;

[0078] One sub-pixel 311 / 3, one sub-pixel 321 / 3 and one sub-pixel 331 / 1 are used to constitute one RGB pixel;

[0079] One sub-pixel 311 / 4, one sub-pixel 321 / 4 and one sub-pixel 331 / 2 are used to form one RGB pixel;

[0080] One sub-pixel 311 / 3, one sub-pixel 321 / 3, and one sub-pixel 341 / 3 are used to form one RGB pixel;

[0081] One sub-pixel 311 / 4, one sub-pixel 321 / 3 and one sub-pixel 331 / 4 are used to constitute one RGB pixel;

[0082] One sub-pixel 31 1 / 4 , one sub-pixel 32 1 / 4 , and one sub-pixel 34 1 / 4 are used to constitute one RGB pixel.

[0083] Based on the above example, it can be known that one sub-pixel array 300 may include one RGB pixel, and the RGB pixel includes one second red sub-pixel 311 , one second green sub-pixel 321 , and a fourth blue sub-pixel 341 in the sub-pixel array 300 .

[0084] As for the sub-pixels that do not correspond to the vertices of the dotted triangle, there are two cases: one is that these sub-pixels are used to Figure 6 Other color sub-pixels in other sub-pixel arrays not shown in the figure constitute RGB pixels. Alternatively, these sub-pixels are not used to constitute RGB pixels with sub-pixels of other colors, for example, a fifth blue sub-pixel 342 / 1 in the sub-pixel array 300.

[0085] The fifth blue sub-pixel 342 that is not used to form an RGB pixel with sub-pixels of other colors can be used to compare the adjacent multiple ( Figure 6 It can be seen that there are 5) complete RGB pixels to compensate for blue light.

[0086] Combined with the above Figure 4 and Figure 5 It can be seen that in the sub-pixel array 300, the aperture ratio of the third blue sub-pixel 331 and the fourth blue sub-pixel 341 is greater than the aperture ratio of the second red sub-pixel 311 and the second green sub-pixel 321, while in the current conventional RGB pixel design, the aperture ratios of the sub-pixels of the three colors are the same. The higher the aperture ratio of the sub-pixel, the larger the effective area that can emit light under the same sub-pixel area. Under the condition that the desired luminous brightness remains unchanged, the current density of the sub-pixel can be reduced, thereby helping to increase the service life of the sub-pixel. Therefore, increasing the aperture ratio of the third blue sub-pixel 331 and the fourth blue sub-pixel 341 can reduce the current density given to the third blue sub-pixel 331 and the fourth blue sub-pixel 341, thereby helping to increase the service life of the third blue sub-pixel 331 and the fourth blue sub-pixel 341.

[0087] In addition, based on the blue light compensation function of the fifth blue sub-pixel 342, the brightness of the third blue sub-pixel 331 or the fourth blue sub-pixel 341 used to constitute the RGB pixel around the fifth blue sub-pixel 342 can be further reduced, so that the current density given to the third blue sub-pixel 331, the fourth blue sub-pixel 341 and the fifth blue sub-pixel 342 can be further reduced, thereby helping to increase the service life of the third blue sub-pixel 331, the fourth blue sub-pixel 341 and the fifth blue sub-pixel 342.

[0088] In some possible embodiments, considering that the aperture ratios of the first blue sub-pixel 330 and the second blue sub-pixel 340 in the sub-pixel array 300 are relatively large, and the fifth blue sub-pixel 342 in the second blue sub-pixel can also perform blue light compensation for the surrounding pixels, the luminous brightness of the third blue sub-pixel 331, the fourth blue sub-pixel 341 and the fifth blue sub-pixel 342 can be respectively smaller than the luminous brightness of the second red sub-pixel 311 and / or the second green sub-pixel 321.

[0089] If a plurality of the above sub-pixel arrays 300 are closely arranged in multiple rows, a Figure 2 The pixel matrix of the color distribution shown in FIG. 1 may include a plurality of fifth blue sub-pixels 342 in the pixel matrix for performing blue light compensation for adjacent pixels.

[0090] Based on the above technical solution, sub-pixels of multiple colors are divided separately through a specific sub-pixel division method so that there is a specific aperture ratio ratio relationship between the sub-pixels of each color, especially the aperture ratio of the blue sub-pixel is increased, so that the aperture ratio of the blue sub-pixel is greater than the aperture ratios of the red sub-pixel and the green sub-pixel. Due to the increase in the aperture ratio of the blue sub-pixel, it helps to reduce the current density given to the blue sub-pixel, thereby extending the service life of the blue sub-pixel; in addition, through a specific sub-pixel arrangement method, in each smaller sub-pixel obtained by division, not only sub-pixels used to constitute a complete pixel are included, but also at least one blue sub-pixel that is not used to constitute a complete pixel is used to perform blue light compensation for the complete pixel adjacent to the blue sub-pixel. Due to the existence of blue light compensation, the current density given to each blue sub-pixel can be further reduced, thereby further extending the service life of the blue sub-pixel.

[0091] In some possible embodiments, the shape of the sub-pixel of each color in the sub-pixel array 300 may be a regular N-gon. Based on this solution, the complexity of sub-pixel division can be reduced.

[0092] In some possible embodiments, the sub-pixel array 300 may emit light based on an organic light emitting diode (OLED). Of course, the sub-pixel array 300 is also applicable to LCD.

[0093] Based on the above embodiments, it can be known that N in the N-gon can be a multiple of 3, so accordingly, the shape of the sub-pixels of each color can be not only a hexagon, but also a triangle, a nonagon, a dodecagon, etc., or even a circle. For ease of understanding, the following drawings illustrate the division of sub-pixels when the sub-pixels are triangles and nonagons.

[0094] Figure 7It is a schematic diagram of a division method based on triangular sub-pixels proposed in an embodiment of the present application.

[0095] refer to Figure 7 As shown, for ease of understanding, this example takes an equilateral triangle as an example for explanation. Based on the above embodiment, it can be known that the aperture ratio ratio between the first red sub-pixel 310, the first green sub-pixel 320 and the first blue sub-pixel 330 or the second blue sub-pixel 340 is 1 / 3:1 / 3:1 / 2, so the division of the triangle can also be divided into two cases:

[0096] One is to divide the triangle into three parts with equal areas. Considering that the triangle in the example is an equilateral triangle, the center point or the centroid of the triangle can be used as a reference point. Then, based on the point, perpendicular lines are drawn to each side of the triangle to divide the triangle into three quadrilaterals with equal areas. This division method is applicable to the division of the first red sub-pixel 310 and the first green sub-pixel 320.

[0097] Another method is to divide the triangle into two equal parts. Considering that the triangle in the example is an equilateral triangle, the vertex of the triangle can be used as a reference point, and then a perpendicular line is drawn to the opposite side of the point based on the point. The triangle can be divided into two triangles of equal area. This division method is applicable to the division of the first blue sub-pixel 330 and the second blue sub-pixel 340.

[0098] Figure 8 It is a schematic diagram of a division method based on enneagonal sub-pixels proposed in an embodiment of the present application.

[0099] refer to Figure 8 As shown, for ease of understanding, this example takes a regular enneagon as an example for explanation. Based on the above embodiment, it can be known that the aperture ratio ratio between the first red sub-pixel 310, the first green sub-pixel 320 and the first blue sub-pixel 330 or the second blue sub-pixel 340 is 1 / 3:1 / 3:1 / 2. Then, for the division of the enneagon, similar to the division method of the hexagon in the above embodiment, the center point or the centroid point of the triangle can be used as a reference point, and then the point is used as a reference to connect with each vertex of the enneagon to divide the enneagon into 9 triangles of equal area, and then the number of triangles corresponding to each divided sub-pixel is determined, which may include the following two cases:

[0100] One is to use a polygon formed by three adjacent triangular areas included in a sub-pixel as the divided sub-pixel. This sub-pixel division method is applicable to the first red sub-pixel 310 and the first green sub-pixel 320 in the embodiment of the present application.

[0101] The other is to use the polygon formed by the four adjacent triangular areas included in the sub-pixel as the divided sub-pixel. This sub-pixel division method is applicable to the first blue sub-pixel 330 and the second blue sub-pixel 340 in the embodiment of the present application.

[0102] Based on the above technical solution, the shape of the sub-pixel mentioned in the embodiment of the present application can be any polygon with a side number that is a multiple of 3, so that the present solution has strong compatibility and can be compatible with a variety of sub-pixel shapes, thereby increasing the applicability of the present solution.

[0103] It is conceivable that based on the idea of ​​the above-mentioned sub-pixel division, it can be used to determine the division method of other N-gons, and the N-deformed division method can be adaptively adjusted only according to the aperture ratio ratio between each color sub-pixel as needed. These are what those skilled in the art can think of on the basis of obtaining the technical solution mentioned in the embodiment of the present application. Therefore, the application of the technical solution of the embodiment of the present application to other N-deformed sub-pixel division scenarios also falls within the protection scope of the embodiment of the present disclosure. As for when the shape of the sub-pixel is other shapes, it is also applicable to the color composition form of the sub-pixel array proposed in the embodiment of the present application, as well as the arrangement form of the sub-pixel. These extended forms are what those skilled in the art can think of on the basis of obtaining the technical solution mentioned in the embodiment of the present application, and they also fall within the protection scope of the embodiment of the present application.

[0104] It should be understood that the sub-pixel array 300 mentioned in the above embodiment is the smallest sub-pixel unit protected by the present application. Based on the pixel arrangement design of the sub-pixel array 300, it can also be expanded to a variety of other specifications of sub-pixel arrays. Figure 6 A larger sub-pixel array expanded on the basis of the arrangement results presented by the multiple sub-pixel arrays 300 shown, for example, including at least one fifth blue sub-pixel 342 for compensating blue light, can also be called a blue light compensation repetitive unit.

[0105] Fig. 9 3 is a schematic diagram of the structure of another sub-pixel array 900 proposed in an embodiment of the present application. The sub-pixel array 900 can be used as the above-mentioned blue light compensation repeating unit, and the second blue sub-pixel 340 is located at the center of the blue light compensation repeating unit.

[0106] refer to Fig. 9 As shown, taking a display panel based on RGB pixels as an example, the sub-pixel array 900 may include: 4 first red sub-pixels 310 , 2 first green sub-pixels 320 , 2 first blue sub-pixels 330 and 1 second blue sub-pixel 340 .

[0107] Similar to subpixel array 300, in subpixel array 900, first red subpixel 310 includes three second red subpixels 311 having the same shape and area, first green subpixel 320 includes three second green subpixels 321 having the same shape and area, first blue subpixel 330 includes two third blue subpixels 331 having the same shape and area, second blue subpixel 340 includes fourth blue subpixel 341 and fifth blue subpixel 342, and the fourth blue subpixel 341 and the fifth blue subpixel 342 have the same shape and area.

[0108] In addition, in the subpixel array 900, one first red subpixel 310, one first green subpixel 320 and another first red subpixel 310 are arranged alternately in sequence along the first direction; one first blue subpixel 330, one second blue subpixel 340 and another first blue subpixel 330 are arranged alternately in sequence along the second direction; and the remaining one first red subpixel 310, one first green subpixel 320 and another first red subpixel 310 are arranged alternately in sequence along the third direction, wherein the first direction, the second direction and the third direction are parallel.

[0109] Fig.10 1 is a schematic diagram of the structure of another sub-pixel array 1000 proposed in an embodiment of the present application. The sub-pixel array 1000 can also be used as the above-mentioned blue light compensation repeating unit, but is different from the sub-pixel array 900 in terms of sub-pixel color composition, and the first blue sub-pixel 330 is located at the center of the blue light compensation repeating unit.

[0110] refer to Fig.10 As shown, taking a display panel based on RGB pixels as an example, the sub-pixel array 1000 may include: 4 first green sub-pixels 320 , 2 first red sub-pixels 310 , 1 first blue sub-pixel 330 and 2 second blue sub-pixels 340 .

[0111] Similar to the subpixel array 300, in the subpixel array 1000, the first red subpixel 310 includes three second red subpixels 311 having the same shape and area, the first green subpixel 320 includes three second green subpixels 321 having the same shape and area, the first blue subpixel 330 includes two third blue subpixels 331 having the same shape and area, and the second blue subpixel 340 includes a fourth blue subpixel 341 and a fifth blue subpixel 342, and the fourth blue subpixel 341 and the fifth blue subpixel 342 have the same shape and area.

[0112] In addition, in the subpixel array 1000, one first green subpixel 320, one first red subpixel 310 and another first green subpixel 320 are arranged alternately in sequence along the first direction; one second blue subpixel 340, one first blue subpixel 330 and another second blue subpixel 340 are arranged alternately in sequence along the second direction; and the remaining one first green subpixel 320, one first red subpixel 310 and another first green subpixel 320 are arranged alternately in sequence along the third direction, wherein the first direction, the second direction and the third direction are parallel.

[0113] If the above sub-pixel array 900 and the sub-pixel array 1000 are alternately arranged in multiple rows, a corresponding Figure 2 The color distribution of the pixel matrix shown, or forming Figure 6 A partial pixel matrix is ​​shown, and in the pixel matrix, a plurality of fifth blue sub-pixels 342 may be included to perform blue light compensation for adjacent pixels.

[0114] The embodiment of the present application also proposes an array substrate, which includes K sub-pixel arrays 300 of any one of the embodiments of the present application, the sub-pixels in the K sub-pixel arrays 300 are arranged in the same manner, and the K sub-pixel arrays are closely arranged, and K is greater than 1.

[0115] It should be understood that the color distribution finally presented by the array substrate can refer to Figure 2 The color distribution results are shown.

[0116] An embodiment of the present application further provides a display panel, which includes the above-mentioned array substrate.

[0117] In addition, with respect to the sub-pixel array obtained based on the special sub-pixel division method proposed in the embodiment of the present application, the embodiment of the present application also correspondingly proposes a method for controlling pixel light emission, which can be applied to the above-mentioned display panel or array substrate, and the method comprises the following steps:

[0118] S1: sending a first light emitting signal to the first red sub-pixel 310, where the first light emitting signal is used to drive the first red sub-pixel 310 to emit light at a first brightness.

[0119] S2: Sending a second light emitting signal to the first green sub-pixel 320, where the second light emitting signal is used to drive the first green sub-pixel 320 to emit light at a second brightness.

[0120] S3: sending a third light emitting signal to the first blue sub-pixel 330, where the third light emitting signal is used to drive the first blue sub-pixel 330 to emit light at a third brightness.

[0121] S4: sending a fourth light emitting signal to the second blue sub-pixel 340, where the fourth light emitting signal is used to drive the second blue sub-pixel 340 to emit light at a fourth brightness.

[0122] The third brightness and the fourth brightness are respectively smaller than the first brightness and / or the second brightness.

[0123] It should be understood that the above four steps can be performed synchronously or asynchronously.

[0124] Correspondingly, an embodiment of the present application also proposes a device for controlling pixel light emission, including a processor and a memory, wherein the processor and the memory are connected, wherein the memory is used to store program code, and the processor is used to call the program code to execute the above-mentioned method for controlling pixel light emission.

[0125] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0126] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0127] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0128] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0129] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0130] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0131] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A sub-pixel array, characterized in that: include: A first red sub-pixel (310), a first green sub-pixel (320), a first blue sub-pixel (330) and a second blue sub-pixel (340); The first red sub-pixel (310), the first green sub-pixel (320), the first blue sub-pixel (330) and the second blue sub-pixel (340) are N-gons or circles with the same shape and area, wherein N is a multiple of 3, the first red sub-pixel (310) and the first green sub-pixel (320) are arranged along a first direction, and the first blue sub-pixel (330) and the second blue sub-pixel (340) are arranged along a second direction; The first red sub-pixel (310) includes three second red sub-pixels (311) having the same shape and area, the first green sub-pixel (320) includes three second green sub-pixels (321) having the same shape and area, the first blue sub-pixel (330) includes two third blue sub-pixels (331) having the same shape and area, and the second blue sub-pixel (340) includes a fourth blue sub-pixel (341) and a fifth blue sub-pixel (342), and the fourth blue sub-pixel (341) and the fifth blue sub-pixel (342) have the same shape and area.

2. The sub-pixel array according to claim 1, characterized in that: The second red sub-pixel (311) is used to form a first part of a pixel, the second green sub-pixel (321) is used to form a second part of a pixel, the third blue sub-pixel (331) or the fourth blue sub-pixel (341) is used to form a third part of a pixel, and the fifth blue sub-pixel (342) is used to compensate blue light for an adjacent pixel.

3. The sub-pixel array according to claim 1 or 2, characterized in that: The sub-pixel array includes red, green and blue (RGB) pixels, and the RGB pixels include one second red sub-pixel (311), one second green sub-pixel (321) and the fourth blue sub-pixel (341).

4. The sub-pixel array according to any one of claims 1 to 3, characterized in that: The luminous brightness of the third blue sub-pixel (331), the fourth blue sub-pixel (341) and the fifth blue sub-pixel (342) are respectively smaller than the luminous brightness of the second red sub-pixel (311) and / or the second green sub-pixel (321).

5. The sub-pixel array according to any one of claims 1 to 4, characterized in that: The first direction is parallel to the second direction.

6. The sub-pixel array according to any one of claims 1 to 5, characterized in that: The N-gon is a regular N-gon.

7. The sub-pixel array according to any one of claims 1 to 6, characterized in that: The sub-pixel array emits light based on an organic light emitting diode (OLED).

8. An array substrate, characterized in that: Comprising K sub-pixel arrays as claimed in any one of claims 1 to 7, the sub-pixels in the K sub-pixel arrays are arranged in the same manner, and the K sub-pixel arrays are closely arranged, and K is greater than 1.

9. A display panel, characterized in that: Comprising the array substrate as claimed in claim 8.

10. A method for controlling pixel light emission, characterized in that: Applied to the array substrate of claim 8, or applied to the display panel of claim 9, the method comprises: Sending a first light emitting signal to a first red sub-pixel (310), wherein the first light emitting signal is used to drive the first red sub-pixel (310) to emit light at a first brightness; Sending a second light emitting signal to the first green sub-pixel (320), wherein the second light emitting signal is used to drive the first green sub-pixel (320) to emit light at a second brightness; Sending a third light emitting signal to the first blue sub-pixel (330), wherein the third light emitting signal is used to drive the first blue sub-pixel (330) to emit light at a third brightness; Sending a fourth light emitting signal to the second blue sub-pixel (340), wherein the fourth light emitting signal is used to drive the second blue sub-pixel (340) to emit light at a fourth brightness; The third brightness and the fourth brightness are respectively smaller than the first brightness and / or the second brightness.

11. A device for controlling pixel light emission, characterized in that: The method comprises a processor and a memory, wherein the processor and the memory are connected, wherein the memory is used to store program codes, and the processor is used to call the program codes to execute the method according to claim 10.

Images