CN113178459A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113178459A CN113178459A CN202110353690.9A CN202110353690A CN113178459A CN 113178459 A CN113178459 A CN 113178459A CN 202110353690 A CN202110353690 A CN 202110353690A CN 113178459 A CN113178459 A CN 113178459A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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Abstract
The invention provides a display panel and a display device, wherein the display panel comprises a display area, the display area comprises a sub-pixel unit area, a non-sub-pixel unit area and a bending area, and the display panel further comprises: a plurality of sub-pixels located in the sub-pixel unit region; the color resistance layer is positioned on the plurality of sub-pixels and comprises a plurality of color resistance blocks, wherein each color resistance block is over against the corresponding sub-pixel; and a black matrix layer including a plurality of first openings and a plurality of second openings, wherein the plurality of first openings are located in the sub-pixel unit region, and each color block includes a portion located in the first opening; the plurality of second openings are positioned in the non-sub-pixel unit area and in the bending area; through set up the second opening on black matrix layer, reduced the area of black matrix layer in whole display panel, and then reduced display panel's the risk that produces the crackle, improved the reliability that display panel buckled.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a display panel and a display device.
Background
With the development of display technology and the change of market demand, flexible screens have become popular research objects and market trends in recent years. The flexible display panel mainly refers to a flexible Diode light-Emitting display panel (OLED), and devices can be prepared on a plastic substrate, and a plastic module material rather than a glass cover plate can obtain good bending characteristics, but the OLED display panel uses a circular polarizer, so that the panel is large in thickness and high in power consumption; polarizers (POL) can effectively reduce the panel reflectivity under strong light, but lose nearly 58% of the light emission, which greatly increases the lifetime burden for the OLED; on the other hand, the polarizer has large thickness and brittle material, and the bending curvature radius is limited, which is not beneficial to the development of flexible display panel products.
The POL-less technology belongs to the technology of replacing a polarizer with a Color Film (CF) layer, can improve the light-emitting rate from 42% to 60%, and can reduce the thickness of a functional layer from-100 mu m to less than 5 mu m, so that the whole thickness of the display panel is reduced, and the smaller-radius bending is facilitated. Because the color film layer is closer to the display surface of the display panel, the compressive stress generated when the display panel is folded inwards and the tensile stress generated when the display panel is folded outwards are still larger, so that the display panel possibly has the risk of generating cracks, and especially the curled display panel has higher requirements on flexibility.
Therefore, in the existing display panel technology, the color film layer is closer to the display surface of the display panel, and the stress generated when the display panel is bent is larger, so that the display panel is easy to crack, and improvement is urgently needed.
Disclosure of Invention
The invention relates to a display panel and a display device, which are used for solving the problems that in the prior art, a color film layer is close to a display surface of the display panel, and the stress generated when the display panel is bent is large, so that the display panel is easy to generate cracks.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides a display panel, which comprises a display area, wherein the display area comprises a sub-pixel unit area, a non-sub-pixel unit area and a bending area, and the display panel comprises:
a plurality of sub-pixels located in the sub-pixel unit region;
the color resistance layer is positioned on the sub-pixels and comprises a plurality of color resistance blocks, wherein each color resistance block is right opposite to the corresponding sub-pixel; and
a black matrix layer including a plurality of first openings and a plurality of second openings, wherein the plurality of first openings are located in the sub-pixel unit area, and each of the color-resist blocks includes a portion located in the first opening;
the plurality of second openings are located in the non-sub-pixel unit area and located in the bending area.
In some embodiments, the second opening has one or more of a linear shape, a wavy shape, a diamond shape, a rectangular shape, an oval shape, and a circular shape.
In some embodiments, the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein the plurality of first sub-pixels are arranged in an array, and the plurality of second sub-pixels and the plurality of third sub-pixels are arranged in an array; the second sub-pixels and the third sub-pixels in the same row are alternately arranged; the connecting line of every four first sub-pixels positioned in two adjacent rows and two adjacent columns is quadrilateral, each second sub-pixel is positioned at the center of the corresponding quadrilateral, and each third sub-pixel is positioned at the center of the corresponding quadrilateral.
In some embodiments, each of the second sub-pixels and the third sub-pixels in the same row is provided with the corresponding second opening between the corresponding first sub-pixel in the adjacent row; the plurality of first sub-pixels corresponding to the plurality of second openings corresponding to the plurality of second sub-pixels and the plurality of third sub-pixels in the same row are located on the same side of the plurality of second sub-pixels and the plurality of third sub-pixels in the same row.
In some embodiments, the second openings are disposed between every two adjacent first sub-pixels in the same row, and between every two adjacent second sub-pixels and every adjacent third sub-pixel in the same row.
In some embodiments, the second opening is disposed between each adjacent second sub-pixel and third sub-pixel in the same row and the same column.
In some embodiments, a depth of the second opening is less than or equal to a thickness of the black matrix.
In some embodiments, the liquid crystal display further comprises an encapsulation layer located on the plurality of sub-pixels, and a touch layer located on the encapsulation layer, wherein the touch layer comprises a plurality of touch electrodes, and the black matrix layer covers the plurality of touch electrodes.
In some embodiments, the touch layer further includes a trace connected to the plurality of touch electrodes, where the trace includes an opening or a metal trace having a reflectivity lower than that of the touch electrodes, and the metal trace having the opening or the reflectivity lower than that of the touch electrodes faces at least one of the second openings.
The application also provides a display device, which comprises the display panel.
Compared with the prior art, the display panel and the display device provided by the invention have the beneficial effects that:
the invention provides a display panel, which comprises a display area, a display area and a display unit, wherein the display area comprises a sub-pixel unit area and a non-sub-pixel unit area; a color resist layer including a plurality of color resist blocks; and a black matrix layer including a plurality of first openings and a plurality of second openings, wherein the plurality of first openings are located in the sub-pixel unit area, and each of the color-resist blocks includes a portion located in the first opening; wherein the plurality of second openings are located in the non-sub-pixel unit area; the second opening is formed in the black matrix layer, so that the area of the black matrix layer in the whole display panel is reduced, the risk of cracks of the display panel is reduced, and the bending reliability of the display panel is improved.
Drawings
Fig. 1 is a schematic view of a first structure of a display panel according to an embodiment of the present invention.
Fig. 2 is a schematic view of a second structure of the display panel according to the embodiment of the invention.
Fig. 3 is a schematic diagram of a third structure of the display panel according to the embodiment of the invention.
Fig. 4(a) is a schematic view of a first structure of a first opening and a second opening of a display panel according to an embodiment of the invention.
Fig. 4(b) is a second structural schematic diagram of the first opening and the second opening of the display panel according to the embodiment of the invention.
Fig. 4(c) is a schematic diagram of a third structure of the first opening and the second opening of the display panel according to the embodiment of the invention.
Fig. 4(d) is a fourth structural schematic diagram of the first opening and the second opening of the display panel according to the embodiment of the invention.
Fig. 4(e) is a fifth structural schematic diagram of the first opening and the second opening of the display panel according to the embodiment of the invention.
Fig. 4(f) is a sixth structural schematic diagram of the first opening and the second opening of the display panel according to the embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a display panel and a display device, and particularly refers to fig. 1 to fig. 4 (f).
The POL-less technology belongs to the technology of replacing a polarizer with a Color Film (CF) layer, can improve the light-emitting rate from 42% to 60%, and can reduce the thickness of a functional layer from-100 mu m to less than 5 mu m, so that the whole thickness of the display panel is reduced, and the smaller-radius bending is facilitated. Because the color film layer is closer to the display surface of the display panel, the compressive stress generated when the display panel is folded inwards and the tensile stress generated when the display panel is folded outwards are still larger, so that the display panel possibly has the risk of generating cracks, and especially the curled display panel has higher requirements on flexibility. Therefore, the present invention provides a display panel and a display device to solve the above problems.
Fig. 1 is a schematic view of a first structure of a display panel according to an embodiment of the present invention. In one aspect, the present invention provides a display panel 1, where the display panel 1 is a flexible display panel, and includes a folding display panel and a rolling display panel. As can be seen from fig. 1, the display panel 1 is a rectangular parallelepiped, and eight outer corners of each sub-display panel in the display panel 1 are all rounded structures, so as to prevent users from being inconveniently used or even scratching fingers when using the display panel. When the display panel 1 is used, if the display surface of the display panel is facing to the eyes of the user, that is, the display surface is parallel to the eyes of the user, the user can obtain the optimal viewing angle of the display surface.
The display surface is a page in the display panel 1 for displaying various real-time image information to a user.
The first direction Z is a direction perpendicular to a plane where the display surface of the display panel 1 is located, and may be herein understood as a thickness direction of the display panel 1; the second direction X is a direction in the display surface of the display panel 1 such that the light emitting substrate 11 extends laterally, which may be understood herein as a longitudinal direction of the display panel 1, and the first direction Z is perpendicular to the second direction X; the third direction Y is a direction in the display surface of the display panel 1 such that the light emitting substrate 11 extends in the longitudinal direction, and may be herein understood as a width direction of the display panel 1, and is perpendicular to both the first direction Z and the second direction X.
Fig. 2 is a schematic diagram of a second structure of the display panel according to the embodiment of the present invention, that is, a cross-sectional view of the display panel along a-a. As shown in fig. 2, the display panel 1 includes a display area 1a and a non-display area 1b, the display area 1a includes a sub-pixel unit area, a non-sub-pixel unit area, and a bending area, and the display panel 1 includes: the color resistance layer is positioned on the sub-pixels and comprises a plurality of color resistance blocks, wherein each color resistance block is over against the corresponding sub-pixel; and a black matrix layer 16 including a plurality of first openings 161 and a plurality of second openings 162, wherein the plurality of first openings 161 are located in the sub-pixel unit region, and each of the color resist blocks includes a portion located in the first opening 161; the second openings 162 are located in the non-sub-pixel unit region and in the bending region.
It can be understood that, according to the area division of the display panel 1, the display panel 1 includes a display area 1a and a non-display area 1b, the display area includes a sub-pixel unit area, a non-sub-pixel unit area and a bending area, the bending area may be a dynamic bending area or a static bending area, may be a part of the display area of the display panel, or may be the entire display area of the display panel; according to the division of the film layer structure of the display panel 1, the display panel 1 includes: a plurality of sub-pixels located in the sub-pixel unit region; and the color resistance layer is positioned on the plurality of sub-pixels and comprises a plurality of color resistance blocks, wherein each color resistance block is right opposite to the corresponding sub-pixel. The invention mainly relates to the specific arrangement position of the opening of the black matrix layer 16 in the display area 1a, wherein the black matrix layer 16 is arranged at the periphery of the sub-pixel units connected with the display area of the display panel 1, so that the light leakage of the display panel 1 and the reflection of the metal wire arranged below the black matrix layer 16 are prevented; and between two adjacent sub-pixel unit areas, color mixing between the two adjacent sub-pixel unit areas with different colors is prevented, so that the first opening 161 is an area corresponding to each sub-pixel unit area. Each of the display regions 1a includes a sub-pixel unit region and a non-sub-pixel unit region; the color resistance layer comprises a plurality of color resistance blocks, including but not limited to a first color resistance block, a second color resistance block and a third color resistance block, such as but not limited to a red color resistance block, a green color resistance block and a blue color resistance block; or a red color block, a green color block, a blue color block, a white color block and the like, wherein the color and the type of the color block can be set according to the use requirements of users; it is understood that the thickness of the color resist layer is the same for each color resist block, and the distance between two adjacent color resist blocks is also the same. However, the volume of the color resist layer of each color resist block may be different, for example, since the lifetime of the organic light emitting material of the blue sub-pixel is the shortest, the color of the blue sub-pixel may be unbalanced with the passage of time, and the lifetime of the display panel 1 may be shortened. To solve this problem, it is generally considered to increase the size of the blue sub-pixel to extend the lifetime of the display panel 1. In this case, the area of the blue sub-pixel may be larger than the area of the sub-pixels of the other colors; and because the sub-pixel unit area of each color and the color resistance layer of the corresponding color are correspondingly arranged, the volume of the blue color resistance layer is larger than that of the color resistance layers of other colors. Further, the display region further includes a black matrix layer 16, the black matrix layer 16 includes a plurality of first openings 161 and a plurality of second openings 162, wherein the plurality of first openings 161 are located in the sub-pixel unit region, and each of the color-resisting blocks includes a portion located in the first opening 161; wherein the second openings 162 are located in the non-sub-pixel unit region; that is, each of the first openings 161 is used to dispose one of the color resist blocks, and the second opening 162 is disposed in the non-sub-pixel unit region and spaced apart from each of the first openings 161, so as to reduce the bending stress of the display panel 1 and improve the bending reliability of the display panel 1.
Further, the shape of the second opening 162 is one or more of a straight line shape, a wave shape, a diamond shape, a rectangular shape, an oval shape, and a circular shape.
It can be understood that the shape of the second opening 162 is one or more of a straight line shape, a wave shape, a diamond shape, a rectangular shape, an oval shape and a circular shape, and when the area occupied by the shape of the second opening 162 is larger, the bending reliability of the display panel 1 is more advantageously improved; because the spacing distance between two adjacent sub-pixel unit areas is constant, the second opening arranged in the two adjacent non-sub-pixel unit areas does not influence the display effect of the display panel. The second opening 162 of the black matrix layer 16 is formed by a photolithography process, and preferably, the diameter D of the second opening 162 ranges from: d is not less than 3um and not more than 5um, makes when guaranteeing display panel is flexible display panel's reflectivity influence is less.
Further, the plurality of sub-pixels include a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein the plurality of first sub-pixels are arranged in an array, and the plurality of second sub-pixels and the plurality of third sub-pixels are arranged in an array; the second sub-pixels and the third sub-pixels in the same row are alternately arranged; the connecting line of every four first sub-pixels positioned in two adjacent rows and two adjacent columns is quadrilateral, each second sub-pixel is positioned at the center of the corresponding quadrilateral, and each third sub-pixel is positioned at the center of the corresponding quadrilateral.
It can be understood that the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, that is, the first sub-pixels are disposed corresponding to the first color block, the second sub-pixels are disposed corresponding to the second color block, the third sub-pixels are disposed corresponding to the third color block, a light emitting layer is disposed in each sub-pixel unit region, and a color of each light emitting layer is disposed corresponding to a color of each color block, so as to improve a color rendering effect of the display panel 1; the plurality of first sub-pixels are arranged in an array, the plurality of second sub-pixels and the plurality of third sub-pixels are alternately arranged, namely the plurality of first color resist blocks are arranged in an array, and the plurality of second sub-pixels and the plurality of third sub-pixels are alternately arranged; the second sub-pixels and the third sub-pixels in the same row are alternately arranged, the second sub-pixels and the third sub-pixels in the same column are alternately arranged, that is, the second color blocks and the third color blocks in the same row are alternately arranged, and the second color blocks and the third color blocks in the same column are alternately arranged; the connecting lines of every four first sub-pixels positioned in two adjacent rows and two adjacent columns are quadrilateral, each second sub-pixel is positioned in the center of the corresponding quadrilateral, each third sub-pixel is positioned in the center of the corresponding quadrilateral, namely the connecting lines of every four first color blocking blocks positioned in two adjacent rows and two adjacent columns are quadrilateral, each second color blocking block is positioned in the center of the corresponding quadrilateral, and each third color blocking block is positioned in the center of the corresponding quadrilateral.
Further, each of the second sub-pixels and the third sub-pixels in the same row is provided with a corresponding second opening 162 with the corresponding first sub-pixel in the adjacent row; the plurality of first sub-pixels corresponding to the plurality of second sub-pixels and the plurality of third sub-pixels in the same row are located on the same side of the plurality of second sub-pixels and the plurality of third sub-pixels in the same row.
It is understood that each of the second color blocks 1622 and the third color blocks 1623 of the same row is provided with the corresponding second opening 162 between the corresponding first color block 1621 of the adjacent row; the plurality of first sub-pixels corresponding to the plurality of second sub-pixels and the plurality of third sub-pixels in the same row are located on the same side of the plurality of second sub-pixels and the plurality of third sub-pixels in the same row.
Referring to fig. 4(a), in an embodiment, the second color blocks 1622 and the third color blocks 1623 are located in the same row and the same column and are spaced apart, the first color blocks 1621 are located in one row or one column separately, the second openings 162 are disposed between the second color blocks 1622 and the first color blocks 1621 of two adjacent rows and one upper row, and between the third color blocks 1623 and the first color blocks 1621 of two adjacent rows and one upper row, two second openings 162 are disposed between each second color block 1622 and the first color block 1621 of one adjacent lower row, and two second openings 162 are disposed between each third color block 1623 and the first color block 1621 of one adjacent lower row; a pretilt angle α is formed between each second opening and the third direction Y, and the pretilt angle α ranges from: the pretilt angle alpha is more than or equal to 0 degree and less than or equal to 90 degrees.
Further, the corresponding second openings 162 are disposed between every two adjacent first sub-pixels in the same row, and between every two adjacent second sub-pixels and every adjacent third sub-pixel in the same row.
It can be understood that the corresponding second openings 162 are respectively disposed between every two adjacent first color blocks 1621 in the same row, and between every two adjacent second color blocks 1622 and third color blocks 1623 in the same row; that is, the first color blocking blocks 1621 are disposed in the same row or the same column, the second color blocking blocks 1622 and the third color blocking blocks 1623 are disposed in the same row or the same column at intervals, the second opening 162 is disposed between two adjacent first color blocking blocks 1621 in the same row, and the second opening 162 is disposed between two adjacent second color blocking blocks 1622 and third color blocking blocks 1623 in the same row. Referring to fig. 4(b) and 4(c), the second color blocks 1622 and the third color blocks 1623 are located in the same row or the same column and are spaced apart from each other; the first color blocking blocks 1621 are located in the same row or the same column, the second opening 162 is arranged between two adjacent first color blocking blocks 1621 in the same row, and the second opening 162 is arranged between the adjacent second color blocking blocks 1622 in the same row and the third color blocking block 1623. In one embodiment, the second opening is wavy in shape, as shown in detail in fig. 4 (b); in another embodiment, the second opening is rectangular in shape, see fig. 4 (c); the shape of the second opening includes, but is not limited to, wavy lines and rectangles, and also includes one or a combination of more of straight lines, diamonds, ellipses or circles.
Further, the second opening 162 is disposed between each adjacent second sub-pixel and third sub-pixel in the same row and the same column.
It is understood that between each adjacent second color block 1622 and third color block 1623 in the same row and the same column, the corresponding second opening 162 is disposed.
Referring to fig. 4(d), fig. 4(e) and fig. 4(f), the first color blocking block 1621 is located in the same row or the same column, the second color blocking blocks 1622 and the third color blocking blocks 1623 are arranged in the same row or the same column at intervals, the first color blocking block 1621 and the second color blocking blocks 1622 and the third color blocking blocks 1623 are arranged in the same row or the same column at intervals, the second openings 162 are respectively arranged between the two adjacent second color blocking blocks 1622 and the third color blocking blocks 1623, that is, four second openings 162 are uniformly arranged around each second color blocking block 1622, and four second openings 162 are uniformly arranged around each third color blocking block 1623. In one embodiment, the second opening 162 is rectangular in shape, as shown in detail in fig. 4 (d); in one embodiment, the second opening 162 is diamond shaped, as shown in detail in fig. 4 (e); in one embodiment, the second opening 162 is oval in shape, as shown in detail in fig. 4 (f); similarly, the second opening 162 includes, but is not limited to, a rectangle, a diamond, or an ellipse, and further includes one or a combination of a straight line, a wave, and a circle.
Further, in one embodiment, the depth of the second opening 162 is equal to the thickness of the black matrix layer 16.
It is understood that the second opening 162 penetrates through the black matrix layer 16, and the second opening 162 is a through hole; at this time, the second opening 162 may be disposed to reduce, to a maximum extent, an influence of stress generated when the black matrix layer 16 is bent on the display panel 1, so as to improve, to a maximum extent, the bending stress of the display panel 1. Referring to fig. 2, the length of the second opening 162 along the first direction Z, i.e., the height of the second opening 162, is a first height H1, the first height H1 is equal to the thickness of the black matrix layer 16, and in this case, the second opening 162 is a through hole.
In another embodiment, the depth of the second opening 162 is less than the thickness of the black matrix layer 16.
It is understood that the second opening 162 does not penetrate through the black matrix layer 16, and the second opening 162 is a non-through hole; at this time, the second opening 162 can sufficiently ensure that no light is leaked between two adjacent first openings 161, and at the same time, stress generated when the black matrix layer 16 is bent can be reduced to a certain extent, so that the bending stress of the display panel 1 can be improved to a certain extent. Referring to fig. 3, the length of the second opening 162 along the first direction Z, i.e., the height of the second opening 162, is a second height H2, the second height H2 is less than the thickness of the black matrix layer 16, and at this time, the second opening 162 is a non-through hole.
Further, the display panel 1 further includes a metal line, and an orthographic projection of the metal line on the black matrix layer 16 does not overlap with the plurality of second openings 162.
It is understood that the metal lines may be various metal film layers in the display panel 1, such as a gate metal layer, a source drain metal layer, a data line or a scan line, and the like, and the metal lines are preferably a low-reflectivity metal material. The black matrix layer 16 on the same layer as the color resistance layer mainly serves to shield the metal wires in each film layer below the color resistance layer and prevent the metal wires arranged on the lower layer from emitting; and the color resist layer is disposed in the first opening 161 to provide an opening for each of the sub-pixel unit regions so that each of the light emitting layers transmits light. The non-pixel unit area avoids all the metal wires in the display panel 1 so as to prevent the metal wires from being interfered by external light rays and influencing the reaction sensitivity of the metal wires and further influencing the display effect of the display panel 1; the plurality of second openings 162 are disposed on the black matrix layer 16, and an orthogonal projection of each metal line on the black matrix layer 16 avoids the second openings 162, that is, an orthogonal projection of any metal line on the black matrix layer 16 does not overlap any of the second openings 162, or an orthogonal projection of any of the second openings 162 in a film layer where each metal line is located does not overlap any of the metal lines.
Further, the touch layer further includes a trace connected to the plurality of touch electrodes, where the trace includes an opening or a metal trace having a reflectivity lower than that of the touch electrodes, and the metal trace having the opening or the reflectivity lower than that of the touch electrodes faces at least one of the second openings 162.
It can be understood that the touch layer further includes a trace connected to the plurality of touch electrodes, where the trace includes an opening or a metal trace having a reflectivity lower than that of the touch electrodes, and the opening or the metal trace having a reflectivity lower than that of the touch electrodes faces at least one of the second openings 162, so as to ensure the touch performance of the touch layer and reduce the metal lines exposed outside, thereby avoiding the increase of the reflectivity of the display panel 1 after the black matrix layer 16 is patterned. Also, a planarization layer is included in the display panel 1, and the planarization layer should preferably be a black organic photoresist material.
Further, the display panel 1 further includes an encapsulation layer on the plurality of first sub-pixels, the plurality of second sub-pixels, and the plurality of third sub-pixels, and a touch layer 163 on the encapsulation layer 15, where the touch layer 163 includes a plurality of touch electrodes, and the black matrix layer 16 covers the plurality of touch electrodes.
It is understood that the display panel 1 further includes an encapsulation layer 15 on the first sub-pixel, the second sub-pixel and the third sub-pixel, and a touch layer 163 on the encapsulation layer 15, where the touch layer 163 includes a plurality of touch electrodes, and the black matrix layer 16 covers the plurality of touch electrodes. It should be noted that, in order to sufficiently ensure the display effect of the display panel 1, the color resistance layer is disposed corresponding to the sub-pixel unit region, that is, the first sub-pixel unit region is disposed corresponding to the first color resistance layer, the second sub-pixel unit region is disposed corresponding to the second color resistance layer, and the third sub-pixel unit region is disposed corresponding to the third color resistance layer, so that the light transmittance of each sub-pixel unit region is ensured, the same color is adopted between the corresponding color resistance layer and the sub-pixel unit region, and the display effect of the display panel 1 is improved compared with a display panel only provided with a single color resistance layer; the packaging layer 15 is made of transparent material, which may be transparent organic material or transparent inorganic material, and a user may prefer a material with good light transmittance and low price according to actual needs. The touch layer 163 is preferably a low reflective metallic material. Further, the package layer 15 is further provided with the touch layer 163, the touch layer 163 includes a plurality of touch electrodes therein, and similarly, the touch layer 163 also needs to be covered by the black matrix layer 16, so as to prevent the metal of the touch layer 163 from emitting to affect the touch performance of the display panel; it can be understood that, the more the touch electrodes of the touch layer are, the higher the touch sensitivity of the display panel is, and therefore, under the condition that the display panel is reasonably arranged and is convenient to manufacture, the more the number of the touch electrodes is, the higher the touch sensitivity of the display panel is.
Further, as can be seen from fig. 2, the display panel further includes a pixel defining layer 14 and a plurality of sub-pixel unit regions disposed below the encapsulation layer, wherein a light emitting layer of one color is disposed in an opening of each sub-pixel unit region, and the light emitting layer of each color is disposed corresponding to the color resist layer of the same color, that is, the sub-pixel unit regions of the same color correspond to the color resist layers of the same color; the pixel definition layer is disposed corresponding to the black matrix layer 16, and the pixel definition layer 14 may be formed of an organic material such as polyimide, polyamide, benzocyclobutene, acryl resin, or phenol resin, preferably black organic photoresist, so as to substantially shield the metal traces below.
An anode layer 141 is further connected to each of the light emitting layers, the anode layer 141 is electrically connected to a thin film transistor, and the thin film transistor is a driving transistor and is used for controlling the light emitting layer 142 to emit light; the thin film transistor can be a top gate type thin film transistor or a bottom gate type thin film transistor, even a double-gate thin film transistor. Each of the anode layers 141 is electrically connected to the drain 123 of the thin film transistor through a via hole, and the source 122 and the drain 123 of each of the thin film transistors are electrically connected to the doped region of the active layer 121 through a via hole, so that a complete driving circuit is formed between each of the thin film transistors and the anode layers 141 and the light emitting layer 142. The light emitting layer 142 is disposed in the opening of each sub-pixel unit to maximize the light emitting rate of each sub-pixel; the anode layer 141 is disposed under the light emitting layers 142, and two adjacent light emitting layers 142 are spaced apart by the pixel defining layer 14, that is, each light emitting layer 142 is spaced apart by the pixel defining layer 14, and each sub-pixel unit is spaced apart by the pixel defining layer 14.
The application also provides a display device, which comprises the display panel.
The display panel and the display device provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in the present document by applying specific examples, and the description of the above embodiments is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising a display area, wherein the display area comprises a sub-pixel unit area, a non-sub-pixel unit area and a bending area, the display panel comprising:
a plurality of sub-pixels located in the sub-pixel unit region;
the color resistance layer is positioned on the sub-pixels and comprises a plurality of color resistance blocks, wherein each color resistance block is over against the corresponding sub-pixel; and
a black matrix layer including a plurality of first openings and a plurality of second openings, wherein the plurality of first openings are located in the sub-pixel unit area, and each of the color-resist blocks includes a portion located in the first opening;
the plurality of second openings are located in the non-sub-pixel unit area and located in the bending area.
2. The display panel according to claim 1, wherein the second opening has one or more of a linear shape, a wavy shape, a diamond shape, a rectangular shape, an oval shape, and a circular shape.
3. The display panel according to claim 1, wherein the plurality of sub-pixels comprises a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein the plurality of first sub-pixels are arranged in an array, and the plurality of second sub-pixels and the plurality of third sub-pixels are arranged in an array; the second sub-pixels and the third sub-pixels in the same row are alternately arranged; the connecting line of every four first sub-pixels positioned in two adjacent rows and two adjacent columns is quadrilateral, each second sub-pixel is positioned at the center of the corresponding quadrilateral, and each third sub-pixel is positioned at the center of the corresponding quadrilateral.
4. The display panel according to claim 3, wherein each of the second sub-pixels and the third sub-pixels in the same row is provided with the corresponding second opening between the corresponding first sub-pixel in the adjacent row; the plurality of first sub-pixels corresponding to the plurality of second openings corresponding to the plurality of second sub-pixels and the plurality of third sub-pixels in the same row are located on the same side of the plurality of second sub-pixels and the plurality of third sub-pixels in the same row.
5. The display panel according to claim 3, wherein the second openings are disposed between every two adjacent first sub-pixels in the same row and between every two adjacent second sub-pixels and every adjacent third sub-pixels in the same row.
6. The display panel according to claim 3, wherein the second openings are disposed between every two adjacent second sub-pixels and every two adjacent third sub-pixels in the same row and the same column.
7. The display panel according to claim 1, wherein a depth of the second opening is less than or equal to a thickness of the black matrix.
8. The display panel of claim 1, further comprising an encapsulation layer on the plurality of sub-pixels, a touch layer on the encapsulation layer, the touch layer comprising a plurality of touch electrodes, and the black matrix layer covering the plurality of touch electrodes.
9. The display panel according to claim 8, wherein the touch layer further comprises a trace connected to the plurality of touch electrodes, the trace comprises an opening or a metal trace having a reflectivity lower than that of the touch electrodes, and the opening or the metal trace having a reflectivity lower than that of the touch electrodes faces at least one of the second openings.
10. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 9.
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| CN202110353690.9A CN113178459B (en) | 2021-04-01 | 2021-04-01 | Display panel and display device |
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