Display panel and display device

Abstract

The utility model relates to a display panel and a display device. According to the display panel, in the third direction, the two first sub-pixels in the two adjacent pixel units are located between the two third sub-pixels, and the anodes of the two adjacent first sub-pixels are insulated from each other, so that in the third direction, when the first sub-pixel in one pixel unit has a dark spot problem, the first sub-pixel in the pixel unit is not in the dark spot problem, and the first sub-pixel in the pixel unit is not in the dark spot problem. The first sub-pixel of the other pixel unit can make up for the visual brightness preliminarily, and the situation that the color point phenomenon appears in vision due to dark point color cast is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) is an optoelectronic technology that uses organic semiconductor materials to produce reversible color changes under current drive to achieve colorful display. OLED has the advantages of being light, thin, high brightness, active light emission, low energy consumption, wide viewing angle, fast response, flexibility, wide operating temperature range, low voltage requirement, high power saving efficiency, fast response, simple structure, low cost, and almost infinite contrast, and is considered to be the most promising new generation display technology.

[0003] There are two types of dark spot problems in the pixels of current OLED products. The first type: the anode layer generally adopts a laminated structure of ITO / Ag / ITO, and is generally coated by physical vapor deposition (PVD) process. After etching, when left for a long time, ITO is not dense and easily cracked and has voids, causing small Ag particles to pierce out and cause dark spots in pixels. The second type: due to array substrate process problems (such as particles causing metal wiring to short or open circuit, etc.), it will cause constant bright spots. Generally, the cathode laser is melted to form dark spots to reduce the visual impact.

[0004] The Real arrangement (Real RGB) is widely used in the current medium-sized OLED field. Limited by the opening limit of the high-precision metal mask (Fine Metal Mask, FMM) used for evaporation, the current Real arrangement is generally RG in a separate column and B in a separate column. When the above-mentioned dark spot problem occurs, the brightness of the center of the dark spot drops a lot, and the distance between pixels of the same color is far, resulting in a visual phenomenon of color dots, and the undesirable characteristics are obvious. For example: when the G pixel is a dark spot, it is visually a red-purple dot; when the R pixel is a dark spot, it is visually a blue dot. The visual problem caused by the color cast of the dark spot makes the dark spot problem too obvious.

[0005] In order to improve the color shift caused by dark spots, the first dark spot problem is generally avoided by optimizing the anode process and process time, and the second dark spot problem is avoided by replacing the data line through the repair circuit (designing a dummy pixel data line to switch the data line to repair the normal power supply of the pixel TFT when the pixel is abnormal). Both of these tasks require a lot of work, and the success rate and product performance require a lot of effort to verify. Utility Model Content

[0006] The utility model aims to provide a display panel and a display device, which can solve the technical problem of visual color dot phenomenon caused by dark spot color cast in the prior art.

[0007] In order to solve the above problems, the utility model provides a display panel, which includes a plurality of pixel units arranged along a first direction and a second direction, the first direction intersecting the second direction; each pixel unit has a virtual rectangle, and each virtual rectangle is provided with a first sub-pixel, a second sub-pixel and a third sub-pixel with different luminous colors; the first sub-pixel and the second sub-pixel in each virtual rectangle are respectively located at the two ends of a first diagonal of the virtual rectangle, and the third sub-pixel in each virtual rectangle is located between the first sub-pixel and the second sub-pixel; in the first direction, the positions of the first sub-pixel and the second sub-pixel in two adjacent pixel units on the corresponding first diagonal are opposite; in the second direction, the positions of the first sub-pixel and the second sub-pixel in two adjacent pixel units on the corresponding first diagonal are the same; in the third direction, the two first sub-pixels in two adjacent pixel units are located between the two third sub-pixels, the anodes of the two adjacent first sub-pixels are insulated from each other, and the third direction intersects with the first direction and the second direction.

[0008] In some embodiments, the minimum spacing between two adjacent first sub-pixels in the third direction is a first spacing L1; the minimum spacing between any one of the two adjacent first sub-pixels in the third direction and the third sub-pixel adjacent thereto is a second spacing L2, and the first spacing L1 is smaller than the second spacing L2.

[0009] In some embodiments, the first interval L1 ranges from 5 μm to 18 μm, and the second interval L2 ranges from 14 μm to 27 μm.

[0010] In some embodiments, the minimum spacing between the first sub-pixel and the third sub-pixel of each pixel unit is equal to the minimum spacing between the second sub-pixel and the third sub-pixel.

[0011] In some embodiments, the symmetry axes of the first sub-pixel, the second sub-pixel, and the third sub-pixel in each pixel unit that are parallel to the first diagonal line coincide with each other.

[0012] In some embodiments, a symmetry axis of a first sub-pixel in each pixel unit that is parallel to the first diagonal line coincides with the first diagonal line.

[0013] In some embodiments, in the third direction, two adjacent pixel units are centrally symmetric about a midpoint of a line connecting two adjacent vertices of two adjacent virtual rectangles.

[0014] In some embodiments, a plurality of pixel groups are arranged in an array; each pixel group includes two pixel units in a first direction and two pixel units in a second direction.

[0015] In some embodiments, the first sub-pixel and the second sub-pixel are respectively one of a red sub-pixel and a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

[0016] In order to solve the above problems, the utility model also provides a display device, which includes the display panel of the present application.

[0017] The advantage of the utility model is that in the third direction, the two first sub-pixels in two adjacent pixel units of the display panel of the utility model are located between the two third sub-pixels, and the anodes of the two adjacent first sub-pixels are insulated from each other. Therefore, in the third direction, when a dark spot problem occurs in the first sub-pixel of a pixel unit, the first sub-pixel of the other pixel unit can preliminarily compensate for the visual brightness, thereby improving the situation where the visual color dot phenomenon occurs due to the color cast of the dark spot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 is a plan view of a pixel group according to Embodiment 1 of the present utility model;

[0020] Figure 2 is a schematic plan view of a display panel according to Embodiment 1 of the present utility model;

[0021] Figure 3 is a plan view of a pixel group according to Embodiment 2 of the present utility model;

[0022] Figure 4 is a plan view of a pixel group according to Embodiment 3 of the present utility model;

[0023] Figure 5 is a plan view of a pixel group according to Embodiment 4 of the present utility model;

[0024] Figure 6 is a plan view of a pixel group according to Embodiment 5 of the present utility model;

[0025] Figure 7 is a plan view of a pixel group according to Embodiment 6 of the present utility model;

[0026] Figure 8is a plan view of a pixel group according to Embodiment 7 of the present utility model;

[0027] Fig. 9 It is a plan view of a pixel group according to Embodiment 8 of the present utility model.

[0028] Description of reference numerals:

[0029] 100, pixel group; 101, virtual rectangle; 1011, first diagonal line; 1012, second diagonal line; 1, pixel unit; 11, first sub-pixel; 12, second sub-pixel; 13, third sub-pixel. DETAILED DESCRIPTION

[0030] The following describes in detail the preferred embodiments of the present invention in conjunction with the drawings in the specification, so as to fully introduce the technical content of the present invention to those skilled in the art, to illustrate that the present invention can be implemented, to make the technical content disclosed by the present invention clearer, and to make it easier for those skilled in the art to understand how to implement the present invention. However, the present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text, and the description of the embodiments below is not intended to limit the scope of the present invention.

[0031] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only directions in the drawings. The directional terms used in this article are used to explain and illustrate the present invention, and are not used to limit the scope of protection of the present invention.

[0032] In the drawings, components with the same structure are represented by the same numerical labels, and components with similar structures or functions are represented by similar numerical labels. In addition, for the convenience of understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and the utility model does not limit the size and thickness of each component.

[0033] Example 1

[0034] like Figure 1 As shown, the utility model provides a display panel, which includes a plurality of pixel units 1 arranged along a first direction M and a second direction N. The first direction M intersects with the second direction N. In this embodiment, the first direction M and the second direction N are perpendicular. In other embodiments, the first direction M and the second direction N may not be perpendicular. In this embodiment, the first direction M is a row direction, and the second direction N is a column direction. In other embodiments, the first direction M may be a column direction, and the second direction N may be a row direction.

[0035] like Figure 1As shown, each pixel unit 1 has a virtual rectangle 101, and each virtual rectangle 101 is provided with a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13 having different luminous colors. The first sub-pixel 11 and the second sub-pixel 12 are respectively one of a red sub-pixel and a green sub-pixel, and the third sub-pixel 13 is a blue sub-pixel. In this embodiment, the first sub-pixel 11 is a green sub-pixel, the second sub-pixel 12 is a red sub-pixel, and the third sub-pixel 13 is a blue sub-pixel. In other embodiments, the first sub-pixel 11 can also be a red sub-pixel, the second sub-pixel 12 can be a green sub-pixel, and the third sub-pixel 13 can be a blue sub-pixel.

[0036] In this embodiment, the second sub-pixel 12 and the third sub-pixel 13 are rectangular, and the first sub-pixel 11 is square. The area of ​​the third sub-pixel 13 is larger than that of the second sub-pixel 12, and the area of ​​the second sub-pixel 12 is larger than that of the first sub-pixel 11.

[0037] like Figure 1 As shown, each virtual rectangle 101 has a first diagonal line 1011 and a second diagonal line 1012. In this embodiment, the first diagonal line 1011 is a line connecting the upper left corner and the lower right corner of the virtual rectangle, and the second diagonal line 1012 is a line connecting the lower left corner and the upper right corner of the virtual rectangle. In other embodiments, the first diagonal line 1011 can also be a line connecting the lower left corner and the upper right corner of the virtual rectangle, and the second diagonal line 1012 can be a line connecting the upper left corner and the lower right corner of the virtual rectangle.

[0038] like Figure 1 As shown, the first sub-pixel 11 and the second sub-pixel 12 in each virtual rectangle 101 are respectively located at two ends of a first diagonal line 1011 of the virtual rectangle 101 , and the third sub-pixel 13 in each virtual rectangle 101 is located between the first sub-pixel 11 and the second sub-pixel 12 .

[0039] like Figure 1 As shown, in the first direction M, the positions of the first sub-pixel 11 and the second sub-pixel 12 in two adjacent pixel units 1 on the corresponding first diagonal line 1011 are opposite.

[0040] like Figure 1 As shown, in the second direction N, the first sub-pixel 11 and the second sub-pixel 12 in two adjacent pixel units 1 are located at the same position on the corresponding first diagonal line 1011 .

[0041] like Figure 1As shown, in the third direction K, the two first sub-pixels 11 in two adjacent pixel units 1 are located between the two third sub-pixels 13, and the anodes of the two adjacent first sub-pixels 11 are insulated from each other. The third direction K intersects with the first direction M and intersects with the second direction N. In this embodiment, the third direction K is parallel to the first diagonal 1011. Therefore, in the third direction K, when a dark spot problem occurs in the first sub-pixel 11 in one pixel unit 1, the first sub-pixel 11 of another pixel unit 1 can make up for the visual brightness preliminarily, and improve the situation where the dark spot color cast causes the visual color spot phenomenon. In this embodiment, in the third direction K, when a dark spot problem occurs in the green sub-pixel in one pixel unit 1, the green sub-pixel of another pixel unit 1 can make up for the visual brightness preliminarily, and improve the situation where the dark spot color cast causes the visual color spot phenomenon.

[0042] like Figure 1 As shown, the minimum spacing between two adjacent first sub-pixels 11 in the third direction K is the first spacing L1. In this embodiment, two adjacent sides of two adjacent first sub-pixels 11 in the third direction K are parallel to each other, so the first spacing L1 is the vertical distance between two adjacent sides of two adjacent first sub-pixels 11 in the third direction K. The range of the first spacing L1 is 5μm-18μm. In this embodiment, the first spacing L1 is 10μm. In some examples, the first spacing L1 can be any one of 5μm, 6μm, 8μm, 12μm, 14μm, 16μm, 18μm, or a range between any two values.

[0043] like Figure 1 As shown, the minimum spacing between any one of the two adjacent first sub-pixels 11 in the third direction K and the adjacent third sub-pixel 13 is the second spacing L2, and the first spacing L1 is smaller than the second spacing L2. The range of the second spacing L2 is 14μm-27μm. In this embodiment, the second spacing L2 is 20μm. In some examples, the first spacing L1 can be any one of 14μm, 16μm, 18μm, 20μm, 22μm, 24μm, 26μm, and 27μm, or a range between any two values.

[0044] It is worth noting that the second spacing L2 here includes the minimum spacing L between the third sub-pixels 13 in the pixel unit where any one of the two adjacent first sub-pixels 11 in the third direction K is located. 21 ; It may also include a minimum spacing L between any one of the two first sub-pixels 11 adjacent to each other in the third direction K and the third sub-pixel 13 adjacent to the first sub-pixel 11 in the first direction M. 22 , and may also include a minimum spacing L between any one of two adjacent first sub-pixels 11 in the third direction K and a third sub-pixel 13 adjacent thereto in the second direction N.23 In this embodiment, the minimum distance L between any one of the two adjacent first sub-pixels 11 in the third direction K and the third sub-pixel 13 adjacent thereto in the first direction M is 22 is equal to the minimum distance L between any one of the two adjacent first sub-pixels 11 in the third direction K and the third sub-pixel 13 adjacent to it in the second direction N 23 .

[0045] In this embodiment, the minimum distance L between the first sub-pixel 11 and the third sub-pixel 13 of each pixel unit 1 is 21 is equal to the minimum distance L3 between the second sub-pixel 12 and the third sub-pixel 13. In other embodiments, the minimum distance L between the first sub-pixel 11 and the third sub-pixel 13 of each pixel unit 1 is 21 It may also not be equal to the minimum distance L3 between the second sub-pixel 12 and the third sub-pixel 13 .

[0046] In some embodiments, the symmetry axes of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 in each pixel unit 1 that are parallel to the first diagonal line 1011 coincide with each other. Specifically, the symmetry axes of the green sub-pixel, the red sub-pixel, and the blue sub-pixel that are parallel to the first diagonal line 1011 coincide with each other. In this embodiment, the long sides of the second sub-pixel 12 and the third sub-pixel 13 are parallel to the second diagonal line 1012, the long sides of the second sub-pixel 12 and the third sub-pixel 13 are parallel to the second diagonal line 1012, and the two adjacent sides of the third sub-pixel 13 are parallel to the first diagonal line 1011 and the second diagonal line 1012, respectively. Specifically, in this embodiment, the long sides of the red sub-pixel and the long sides of the blue sub-pixel are parallel to the second diagonal line 1012, the short sides of the red sub-pixel and the short sides of the blue sub-pixel are parallel to the first diagonal line 1011, and the two adjacent sides of the green sub-pixel are parallel to the first diagonal line 1011 and the second diagonal line 1012, respectively. In some embodiments, the symmetry axis of the first sub-pixel 11 in each pixel unit 1 parallel to the first diagonal line 1011 coincides with the first diagonal line 1011. In this embodiment, the symmetry axes of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 parallel to the first diagonal line 1011 coincide with the first diagonal line 1011. In this embodiment, the symmetry axis of the third sub-pixel 13 parallel to the second diagonal line 1012 coincides with the second diagonal line 1012.

[0047] In some embodiments, in the third direction K, two adjacent pixel units 1 are centrally symmetric about the midpoint of the line between two adjacent vertices of two adjacent virtual rectangles 101. In this embodiment, the pixel unit 1 at the upper left corner is centrally symmetric to the pixel unit 1 at the lower right corner.

[0048] like Figure 2As shown, the display panel includes a plurality of pixel groups 100 arranged in an array; each pixel group 100 includes two pixel units 1 in a first direction M and two pixel units 1 in a second direction N. In this embodiment, the pixel groups 100 are arranged in an array along the first direction M and the second direction N. In other embodiments, the pixel groups 100 may also be arranged in an array along other directions.

[0049] Example 2

[0050] like Figure 3 As shown, this embodiment includes most of the technical features of Embodiment 1. The difference between this embodiment and Embodiment 1 is that in this embodiment, the first direction M is the column direction, and the second direction N is the row direction.

[0051] Example 3

[0052] like Figure 4 As shown, this embodiment includes most of the technical features of embodiment 1. The difference between this embodiment and embodiment 1 is that, in this embodiment, the first diagonal line 1011 is a line connecting the lower left corner and the upper right corner of the virtual rectangle, and the second diagonal line 1012 is a line connecting the upper left corner and the lower right corner of the virtual rectangle.

[0053] Example 4

[0054] like Figure 5 As shown, this embodiment includes most of the technical features of embodiment 1. The difference between this embodiment and embodiment 1 is that, in this embodiment, the first direction M is the column direction, and the second direction N is the row direction; the first diagonal line 1011 is the line connecting the lower left corner and the upper right corner of the virtual rectangle, and the second diagonal line 1012 is the line connecting the upper left corner and the lower right corner of the virtual rectangle.

[0055] Example 5

[0056] like Figure 6 As shown, this embodiment includes most of the technical features of Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in this embodiment, the first sub-pixel 11 is a red sub-pixel, the second sub-pixel 12 is a green sub-pixel, and the third sub-pixel 13 is a blue sub-pixel.

[0057] In this embodiment, the long sides of the green sub-pixel and the long sides of the blue sub-pixel are parallel to the second diagonal line 1012, the short sides of the green sub-pixel and the short sides of the blue sub-pixel are parallel to the first diagonal line 1011, and the two adjacent sides of the red sub-pixel are parallel to the first diagonal line 1011 and the second diagonal line 1012, respectively.

[0058] Example 6

[0059] like Figure 7As shown, this embodiment includes most of the technical features of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, the first sub-pixel 11 is a red sub-pixel, the second sub-pixel 12 is a green sub-pixel, and the third sub-pixel 13 is a blue sub-pixel. The first direction M is the column direction, and the second direction N is the row direction.

[0060] In this embodiment, the long sides of the green sub-pixel and the long sides of the blue sub-pixel are parallel to the second diagonal line 1012, the short sides of the green sub-pixel and the short sides of the blue sub-pixel are parallel to the first diagonal line 1011, and the two adjacent sides of the red sub-pixel are parallel to the first diagonal line 1011 and the second diagonal line 1012, respectively.

[0061] Example 7

[0062] like Figure 8 As shown, this embodiment includes most of the technical features of embodiment 1, and the difference between this embodiment and embodiment 1 is that, in this embodiment, the first sub-pixel 11 is a red sub-pixel, the second sub-pixel 12 is a green sub-pixel, and the third sub-pixel 13 is a blue sub-pixel. The first diagonal line 1011 is a line connecting the lower left corner and the upper right corner of the virtual rectangle, and the second diagonal line 1012 is a line connecting the upper left corner and the lower right corner of the virtual rectangle.

[0063] In this embodiment, the long sides of the green sub-pixel and the long sides of the blue sub-pixel are parallel to the second diagonal line 1012, the short sides of the green sub-pixel and the short sides of the blue sub-pixel are parallel to the first diagonal line 1011, and the two adjacent sides of the red sub-pixel are parallel to the first diagonal line 1011 and the second diagonal line 1012, respectively.

[0064] Example 8

[0065] like Fig. 9 As shown, this embodiment includes most of the technical features of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, the first sub-pixel 11 is a red sub-pixel, the second sub-pixel 12 is a green sub-pixel, and the third sub-pixel 13 is a blue sub-pixel. The first direction M is the column direction, and the second direction N is the row direction; the first diagonal line 1011 is the line connecting the lower left corner and the upper right corner of the virtual rectangle, and the second diagonal line 1012 is the line connecting the upper left corner and the lower right corner of the virtual rectangle.

[0066] In this embodiment, the long sides of the green sub-pixel and the long sides of the blue sub-pixel are parallel to the second diagonal line 1012, the short sides of the green sub-pixel and the short sides of the blue sub-pixel are parallel to the first diagonal line 1011, and the two adjacent sides of the red sub-pixel are parallel to the first diagonal line 1011 and the second diagonal line 1012, respectively.

[0067] In some embodiments, the present invention further provides a display device, which includes a display panel according to any one of the above embodiments.

[0068] The above is a detailed introduction to a display panel and a display device provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: It comprises a plurality of pixel units (1) arranged along a first direction and a second direction, wherein the first direction intersects with the second direction; Each of the pixel units (1) has a virtual rectangle (101), and each of the virtual rectangles (101) is provided with a first sub-pixel (11), a second sub-pixel (12), and a third sub-pixel (13) having different luminous colors; The first sub-pixel (11) and the second sub-pixel (12) in each of the virtual rectangles (101) are respectively located at two ends of a first diagonal line (1011) of the virtual rectangle (101), and the third sub-pixel (13) in each of the virtual rectangles (101) is located between the first sub-pixel (11) and the second sub-pixel (12); In the first direction, the first sub-pixel (11) and the second sub-pixel (12) in two adjacent pixel units (1) are located in opposite positions on the corresponding first diagonal line (1011); In the second direction, the first sub-pixel (11) and the second sub-pixel (12) in two adjacent pixel units (1) are located at the same position on the corresponding first diagonal line (1011); In a third direction, two of the first sub-pixels (11) in two adjacent pixel units (1) are located between two of the third sub-pixels (13), anodes of the two adjacent first sub-pixels (11) are insulated from each other, and the third direction intersects with the first direction and the second direction.

2. The display panel according to claim 1, characterized in that: The minimum distance between two adjacent first sub-pixels (11) in the third direction is a first distance L1; The minimum distance between any one of two adjacent first sub-pixels (11) in the third direction and the adjacent third sub-pixel (13) is a second distance L2, and the first distance L1 is smaller than the second distance L2.

3. The display panel according to claim 2, characterized in that: The first interval L1 ranges from 5 μm to 18 μm, and the second interval L2 ranges from 14 μm to 27 μm.

4. The display panel according to claim 1, characterized in that: The minimum distance between the first sub-pixel (11) and the third sub-pixel (13) of each pixel unit (1) is equal to the minimum distance between the second sub-pixel (12) and the third sub-pixel (13).

5. The display panel according to claim 1, characterized in that: The symmetry axes of the first sub-pixel (11), the second sub-pixel (12) and the third sub-pixel (13) in each of the pixel units (1) and parallel to the first diagonal line (1011) coincide with each other.

6. The display panel according to claim 5, characterized in that: The symmetry axis of the first sub-pixel (11) in each of the pixel units (1) and parallel to the first diagonal line (1011) coincides with the first diagonal line (1011).

7. The display panel according to claim 1, characterized in that: In the third direction, two adjacent pixel units (1) are centrally symmetrical about the midpoint of a line connecting two adjacent vertices of two adjacent virtual rectangles (101).

8. The display panel according to claim 1, characterized in that: A pixel group (100) comprising a plurality of pixels arranged in an array; Each of the pixel groups (100) comprises two of the pixel units (1) in the first direction and two of the pixel units (1) in the second direction.

9. The display panel according to any one of claims 1 to 8, characterized in that: The first sub-pixel (11) and the second sub-pixel (12) are respectively one of a red sub-pixel and a green sub-pixel, and the third sub-pixel (13) is a blue sub-pixel.

10. A display device, characterized in that: A display panel comprising any one of claims 1-9.

Images