Display panel, display device and manufacturing method
By setting staggered first and second prism layers and spacer layers in the flexible touch display panel, the problem of horizontal stripe defects caused by the difference in reflectivity is solved, and uniform reflection of light in the light-emitting surface area is achieved, thus improving the display effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2022-03-17
- Publication Date
- 2026-04-28
AI Technical Summary
Existing flexible touch display panels suffer from horizontal stripe defects under strong light due to the difference in reflectivity between the touch emitting and receiving electrodes.
A first prism layer and a second prism layer are disposed on the side of the touch component away from the light-emitting component, and a spacer layer is disposed between the two. The vertices of the first prism and the second prism are disposed opposite to each other, and the vertex of the second prism is misaligned with the vertex of the first prism when projected onto the substrate.
This reduces the horizontal stripe defects caused by differences in reflectivity, achieves uniform reflection of light in the light-emitting surface area, and improves the display effect.
Smart Images

Figure CN116795229B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of semiconductor technology, and more particularly to a display panel, a display device, and a method for manufacturing it. Background Technology
[0002] Flexible Multiple Layer On Cell (FMLOC) technology can place the touch electrode layer inside the flexible touch substrate. This type of flexible touch substrate is thinner and has a narrower bezel, making it easier to bend or even roll. In addition, it has a better optical display effect. Therefore, this flexible touch substrate is widely used in the field of touch display.
[0003] In touch display products, due to differences in metal mesh wiring, there are differences in reflectivity between the two areas of the touch transmitting electrode (TX) and the touch receiving electrode (RX), resulting in horizontal stripe defects with the same arrangement shape as TX and RX appearing under strong light. Summary of the Invention
[0004] This invention provides a display panel, a display device, and a manufacturing method to improve the problem of horizontal lines in existing touch panel technology.
[0005] This invention provides a display panel, comprising: a substrate, a light-emitting component, a touch component, a first prism layer, a spacer layer, and a second prism layer sequentially stacked on one side of the substrate; wherein the refractive index of the spacer layer is higher than that of the first prism layer and higher than that of the second prism layer;
[0006] The first prism layer includes a plurality of first prisms, and the second prism layer includes a plurality of second prisms. The vertices of the first prisms and the second prisms are arranged opposite each other, and the vertices of both prisms face the spacer layer. The orthographic projection of the vertices of the second prisms onto the substrate is misaligned with the orthographic projection of the vertices of the first prisms onto the substrate.
[0007] In one possible implementation, the vertex of the second prism, in its orthographic projection onto the substrate, is located at the intersection of the orthographic projections of two adjacent first prisms onto the substrate.
[0008] In one possible implementation, the touch component includes a plurality of first touch electrodes and second touch electrodes extending along a first direction and alternately arranged along a second direction; each first touch electrode includes a plurality of first touch electrode blocks arranged sequentially along the first direction; adjacent first touch electrode blocks are electrically connected through a first bridging portion; each second touch electrode is an integral structure.
[0009] The first prism is a strip extending along the first direction and arranged sequentially along the second direction, and a plurality of the first prisms are closely arranged along the second direction; the second prism is a strip extending along the first direction and arranged sequentially along the second direction; a plurality of the second prisms are closely arranged along the second direction.
[0010] In one possible implementation, the width of the orthographic projection of the first touch electrode onto the substrate in the second direction is the same as the width of the orthographic projection of the second touch electrode onto the substrate in the second direction.
[0011] The maximum width of the first prism's orthogonal projection onto the substrate in the second direction is the same as the maximum width of the second prism's orthogonal projection onto the substrate in the second direction.
[0012] In one possible implementation, the maximum width of the orthographic projection of the first touch electrode onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the first prism onto the substrate in the second direction, and the orthographic projection of the first touch electrode onto the substrate coincides with the orthographic projection of the first prism onto the substrate.
[0013] Alternatively, the width of the orthographic projection of the first touch electrode onto the substrate in the second direction is an integer multiple of the maximum width of the orthographic projection of the first prism onto the substrate in the second direction, and the orthographic projection of the first touch electrode onto the substrate covers an integer number of the orthographic projections of the first prism onto the substrate.
[0014] In one possible implementation, the touch component includes a plurality of third touch electrodes extending along a second direction and arranged sequentially along a first direction, and a plurality of fourth touch electrodes extending along the first direction and arranged sequentially along the second direction.
[0015] The third touch electrode includes a plurality of third sub-touch electrode blocks arranged sequentially along the second direction, and each of the third sub-touch electrode blocks of the same third touch electrode is an integral structure; the fourth touch electrode includes fourth sub-touch electrode blocks arranged sequentially along the first direction, and adjacent fourth sub-touch electrode blocks are electrically connected through a second bridging portion.
[0016] In one possible implementation, the third sub-touch electrode block is rectangular, and the fourth sub-touch electrode block is rectangular; the width of the third sub-touch electrode block projected onto the substrate in the second direction is smaller than the width of the fourth sub-touch electrode block projected onto the substrate in the second direction.
[0017] The first prism includes a strip-shaped first sub-prism and a second sub-prism extending along the first direction and alternately arranged along the second direction; the second prism includes a strip-shaped third sub-prism and a fourth sub-prism extending along the first direction and alternately arranged along the second direction.
[0018] The maximum width of the orthographic projection of the third sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the second sub-prism onto the substrate in the second direction. The maximum width of the orthographic projection of the fourth sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the first sub-prism onto the substrate in the second direction.
[0019] In one possible implementation, the maximum width of the orthographic projection of the second sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the fourth sub-touch electrode block onto the substrate in the second direction; the orthographic projection of the second sub-prism onto the substrate coincides with the orthographic projection of the fourth touch electrode onto the substrate.
[0020] The maximum width of the orthographic projection of the first sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the third sub-touch electrode block onto the substrate in the second direction; the orthographic projection of the first sub-prism onto the substrate coincides with the region where the orthographic projections of the plurality of third sub-touch electrode blocks between two adjacent fourth touch electrodes are located on the substrate.
[0021] In one possible implementation, the second prism has the same cross-sectional shape as the first prism in the cross-sectional shape perpendicular to the substrate and parallel to the second direction.
[0022] The first prism has a triangular, semi-circular, or semi-elliptical cross-sectional shape perpendicular to the substrate and parallel to the second direction.
[0023] In one possible implementation, the third sub-touch electrode block is rhomboid, and the fourth sub-touch electrode block is rhomboid;
[0024] The first prism is block-shaped; the second prism is block-shaped; the center of the second prism's orthographic projection on the substrate coincides with the convergence point of the four adjacent first prisms on the substrate.
[0025] In one possible implementation, the first prism includes a first sub-prism block and a second sub-prism block;
[0026] The orthographic projection of the first sub-prism block on the substrate coincides with the orthographic projection of the third sub-touch electrode on the substrate; the orthographic projection of the second sub-prism block on the substrate coincides with the orthographic projection of the fourth touch electrode block on the substrate.
[0027] In one possible implementation, the shape of the second prism is the same as the shape of the first prism;
[0028] The first prism is in the shape of a square pyramid, a hemisphere, or a semi-ellipsoid.
[0029] In one possible implementation, the spacer layer includes a first sub-spacer layer and a second sub-spacer layer located on the side of the first sub-spacer layer away from the touch member, wherein the refractive index of the first sub-spacer layer is the same as that of the second sub-spacer layer;
[0030] The surface of the first sub-spacer layer facing the first prism layer has a complementary shape to the surface shape of the first prism layer.
[0031] The surface of the second sub-spacer layer facing the second prism layer is complementary to the surface of the second prism layer.
[0032] In one possible implementation, the display panel further includes a cover plate located on the side of the second prism layer opposite to the spacer layer.
[0033] In one possible implementation, the second prism layer is attached to the cover plate and is a separate structure from the cover plate.
[0034] In one possible implementation, the second prism layer and the cover plate are an integral structure.
[0035] In one possible implementation, the refractive index of the first prism layer is the same as that of the second prism layer.
[0036] This invention also provides a display device, including the display panel provided in this invention embodiment.
[0037] This invention also provides a method for manufacturing a display panel as described in this invention, comprising:
[0038] A light-emitting component and a touch component are sequentially formed on one side of a substrate.
[0039] A first adhesive layer is coated on the side of the touch component away from the light-emitting component, and the first adhesive layer is patterned to form a first prism layer including a plurality of first prisms;
[0040] A spacer layer is coated on the side of the first prism layer opposite to the touch component;
[0041] A cover plate having a second prism layer is attached to the side of the spacer layer opposite to the first prism layer.
[0042] In one possible implementation, the step of attaching a cover plate having a second prism layer to the side of the spacer layer opposite to the first prism layer includes:
[0043] A second prism layer comprising a plurality of second prisms is formed on one side of the cover plate;
[0044] The side of the cover plate having the second prism layer is attached to the spacer layer.
[0045] The beneficial effects of the embodiments of the present invention are as follows: In the embodiments of the present invention, a first prism layer, a second prism layer, and a spacer layer located between the first prism layer and the second prism layer are provided on the side of the touch component away from the light-emitting component. The vertices of the first prism and the second prism are arranged opposite each other. The orthographic projection of the vertex of the second prism onto the substrate is misaligned with the orthographic projection of the vertex of the first prism onto the substrate. This allows light to pass through the first prism, the spacer layer, and the second prism, so that in each area of the light-emitting surface, there are both reflected light from the first touch electrode and reflected light from the second touch electrode. This reduces the horizontal stripe defects caused by the difference in reflection between the areas where the first touch electrode and the second touch electrode are located. Attached Figure Description
[0046] Figure 1 This is one of the cross-sectional schematic diagrams of a display panel provided in an embodiment of the present invention;
[0047] Figure 2A One of the top views of a touch component with a first prism layer stacked on it, provided in an embodiment of the present invention;
[0048] Figure 2B This is one of the top views of the touch component provided in an embodiment of the present invention;
[0049] Figure 2C This is one of the top views of the first prism layer provided in an embodiment of the present invention;
[0050] Figure 2D This is one of the top views of the second prism layer provided in an embodiment of the present invention;
[0051] Figure 3 One of the schematic diagrams provided in an embodiment of the present invention shows that a plurality of first prisms are disposed in the area where a first touch electrode is located;
[0052] Figure 4A This is a second cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention;
[0053] Figure 4BA second top view schematic diagram of a touch component with a first prism layer stacked on it, provided in an embodiment of the present invention;
[0054] Figure 4C A second top view of the touch component provided in an embodiment of the present invention;
[0055] Figure 4D This is a second top view of the first prism layer provided in an embodiment of the present invention;
[0056] Figure 4E This is a second top view of the second prism layer provided in an embodiment of the present invention;
[0057] Figure 5 A schematic diagram showing that the cross-section of the first prism provided in an embodiment of the present invention is circular;
[0058] Figure 6 A second schematic diagram showing that a plurality of first prisms are disposed in the area where a first touch electrode is located, as provided in an embodiment of the present invention;
[0059] Figure 7A This is the third cross-sectional schematic diagram of the display panel provided in an embodiment of the present invention;
[0060] Figure 7B A third top view schematic diagram of a touch component with a first prism layer stacked on top, provided in an embodiment of the present invention;
[0061] Figure 7C The third top view schematic diagram of the touch component provided in the embodiment of the present invention;
[0062] Figure 7D This is the third top view schematic diagram of the first prism layer provided in the embodiment of the present invention;
[0063] Figure 7E This is the third top view schematic diagram of the second prism layer provided in the embodiment of the present invention;
[0064] Figure 8 This is the fourth cross-sectional schematic diagram of the display panel provided in the embodiment of the present invention;
[0065] Figure 9 This is the fifth cross-sectional schematic diagram of the display panel provided in the embodiment of the present invention;
[0066] Figure 10 This is the sixth cross-sectional schematic diagram of the display panel provided in the embodiment of the present invention;
[0067] Figure 11 This is the seventh cross-sectional schematic diagram of the display panel provided in the embodiment of the present invention;
[0068] Figure 12 This is the eighth schematic cross-sectional view of the display panel provided in the embodiment of the present invention;
[0069] Figure 13 This is one of the schematic diagrams of the display panel manufacturing process provided in the embodiments of the present invention;
[0070] Figure 14 This is the second schematic diagram of the display panel manufacturing process provided in an embodiment of the present invention. Detailed Implementation
[0071] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0072] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.
[0073] As used herein, “approximately” or “substantially the same” includes the stated value and means within an acceptable range of deviations from the specific value, as determined by a person skilled in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., limitations of the measurement system). For example, “substantially the same” may mean a difference relative to the stated value within one or more standard deviations, or within ±30%, 20%, 10%, or 5%.
[0074] In the accompanying drawings, the thicknesses of layers, films, panels, regions, etc., are enlarged for clarity. Exemplary embodiments are described herein with reference to cross-sectional views that are schematic diagrams of idealized embodiments. Thus, deviations from the shapes shown in the drawings will be expected as a result of, for example, manufacturing techniques and / or tolerances. Therefore, the embodiments described herein should not be construed as limited to the specific shapes of the regions shown herein, but rather include deviations in shape caused, for example, by manufacturing processes. For example, regions illustrated or described as flat may typically have rough and / or non-linear characteristics. Furthermore, sharp corners illustrated may be rounded. Thus, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the precise shapes of the regions, nor are they intended to limit the scope of the claims.
[0075] To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.
[0076] See Figure 1 This invention provides a display panel, comprising: a substrate 1, a light-emitting component 2, a touch component 3, a first prism layer 41, a spacer layer 43, and a second prism layer 42, which are sequentially stacked on one side of the substrate 1; wherein the refractive index of the spacer layer 43 is higher than that of the first prism layer 41 and higher than that of the second prism layer 42; specifically, the touch component 3 may include a first touch electrode 31 and a second touch electrode 32;
[0077] The first prism layer 41 includes a plurality of first prisms 410, and the second prism layer 42 includes a plurality of second prisms 420. The vertices of the first prisms 410 and the second prisms 420 are arranged opposite each other, and the vertices are all facing the spacer layer 43. The orthographic projection of the vertices of the second prisms 420 onto the substrate 1 is misaligned with the orthographic projection of the vertices of the first prisms 410 onto the substrate 1.
[0078] In this embodiment of the invention, a first prism layer 41, a second prism layer 42, and a spacer layer 43 are disposed on the side of the touch component 3 away from the light-emitting component 2. The vertices of the first prism 410 and the second prism 420 are arranged opposite each other. The orthographic projection of the vertex of the second prism 420 onto the substrate 1 is misaligned with the orthographic projection of the vertex of the first prism 410 onto the substrate 1. This allows light to pass through the first prism 41, the spacer layer 43, and the second prism 42, resulting in both reflected light from the first touch electrode 31 and reflected light from the second touch electrode 32 in various regions of the light-emitting surface (e.g., ...). Figure 1 As shown by the arrows, where the dashed arrows represent the reflected light from the first touch electrode 31 and the solid arrows represent the reflected light from the second touch electrode 32, this can reduce the horizontal stripe defects caused by the difference in reflection in the areas where the first touch electrode 31 and the second touch electrode 32 are located.
[0079] In one possible implementation, combined with Figure 1 As shown, the orthographic projection of the vertex of the second prism 420 onto the substrate 1 is located at the intersection of the orthographic projections of two adjacent first prisms 410 onto the substrate 1. In this embodiment of the invention, the orthographic projection of the vertex of the second prism 420 onto the substrate 1 is located at the intersection of the orthographic projections of two adjacent first prisms 410 onto the substrate 1, which can ensure the best uniformity of the reflected light from the first touch electrode 31 and the second touch electrode 32 in various regions of the light-emitting surface.
[0080] In one possible implementation, combined with Figure 1 , Figure 2A , Figure 2B , Figure 2C and Figure 2D As shown, where, Figure 2A This is a top view of a touch component with a first prism layer stacked on top. Figure 2B This is a top view of the touch control component. Figure 2C This is a top view of the first prism layer. Figure 2D This is a top view of the second prism layer. Figures 2A-2D The cross-sectional diagram along the dashed line BB1 can be represented as follows: Figure 1 As shown; the touch component 3 includes a plurality of first touch electrodes 31 and second touch electrodes 32 extending along a first direction A1 and alternately arranged along a second direction A2; each first touch electrode 31 includes a plurality of first touch electrode blocks 310 arranged sequentially along the first direction A1; adjacent first touch electrode blocks 310 are electrically connected through a first bridging portion 61; each second touch electrode 32 is an integral structure, the first touch electrode 31 and the second touch electrode 32 can be understood as forming a plurality of hollow blocks in an entire electrode layer, the first touch electrode blocks 310 are set in the hollow blocks, and a plurality of second touch electrodes 32 are formed in an entire electrode layer without the hollow blocks; the first prism 410 is a strip extending along the first direction A1 and arranged sequentially along the second direction A2, and the plurality of first prisms 410 are closely arranged along the second direction A2; the second prism 420 is a strip extending along the first direction A1 and arranged sequentially along the second direction A2, and the plurality of second prisms 420 are closely arranged along the second direction A2.
[0081] Specifically, the first touch electrode 31 and the second touch electrode 32 can be distributed on the same layer and insulated from each other. The first bridging part 61 can be located on a different layer from the first touch electrode 31, with a first insulating layer separating them. Specifically, the first bridging part 61 can electrically connect adjacent first touch electrode blocks 310 through a through-hole penetrating the first insulating layer. It should be noted that... Figure 1To more clearly illustrate the relationship between the touch component and the first prism layer and the second prism layer, the first insulating layer and the first bridging layer where the first bridging portion 61 is located are not shown. However, the present invention is not limited thereto. In specific implementations, the display panel may also be provided with the first insulating layer and the first bridging layer where the first bridging portion 61 is located.
[0082] In specific implementation, the first touch electrode 31 can be a touch emitting electrode, and the second touch electrode 32 can be a touch receiving electrode; alternatively, the first touch electrode 31 can also be a touch receiving electrode, and the second touch electrode 32 can be a touch emitting electrode. The first touch electrode 31 and the second touch electrode 32 can be insulated from each other. Specifically, the first touch electrode 31 can be composed of a grid of metal lines, and the second touch electrode 32 can be composed of metal grid lines. Each grid can be provided with one or more sub-pixels. Specifically, the first touch electrode 31 and the second touch electrode 32 can be different. For example, they can have different overall shapes, different line widths of the grid lines, different internal patterns, or one of the first touch electrode 31 and the second touch electrode 32 may have broken lines in some areas of the grid, thereby causing the first touch electrode 31 and the second touch electrode 32 to have differences in reflected light.
[0083] In one possible implementation, combined with Figure 1 and Figure 2B As shown, the width e1 of the orthogonal projection of the first touch electrode 31 onto the substrate 1 in the second direction A2 can be the same as the width e3 of the orthogonal projection of the second touch electrode 32 onto the substrate 1 in the second direction A2.
[0084] In one possible implementation, combined with Figure 1 , Figure 2C and Figure 2D As shown, the maximum width e2 of the orthographic projection of the first prism 410 onto the substrate in the second direction A2 is the same as the maximum width e4 of the orthographic projection of the second prism 420 onto the substrate in the second direction A2. It can be understood that, since the second prism 420 needs to be staggered with the first prism 410, the second prism 420 at the edge portion of the second prism layer 42 (such as...) Figure 2D The width of the uppermost and lowermost second prisms 410 in the second direction A2 can be smaller than the width of the inner second prism 420 in the second direction A2.
[0085] In one possible implementation, combined with Figure 1 As shown, the width e1 of the orthographic projection of the first touch electrode 31 onto the substrate 1 in the second direction A2 is the same as the maximum width e2 of the orthographic projection of the first prism 410 onto the substrate 1 in the second direction A2; combined with Figure 1 , Figure 2A and Figure 2B As shown, the orthographic projection of the first touch electrode 31 onto the substrate 1 coincides with the orthographic projection of the first prism 410 onto the substrate 1. That is, one first touch electrode 31 can be correspondingly provided with one first prism 410.
[0086] In one possible implementation, combined with Figure 3 As shown, the width e1 of the orthographic projection of the first touch electrode 31 onto the substrate 1 in the second direction A2 is an integer multiple of the maximum width e2 of the orthographic projection of the first prism 410 onto the substrate 1 in the second direction A2. The orthographic projection of the first touch electrode 31 onto the substrate 1 covers an integer number of the orthographic projections of the first prisms 410 onto the substrate 1. That is, one first touch electrode 31 can correspond to multiple first prisms 410. For example, one first touch electrode 31 can correspond to two first prisms 410; another example, one first touch electrode 31 can correspond to three first prisms 410; another example, one first touch electrode 31 can correspond to four first prisms 410; another example, one first touch electrode 31 can correspond to five first prisms 410.
[0087] In specific implementation, the first touch electrode 31 and the second touch electrode 32 can also be as follows: Figure 2B Other shapes and arrangements not shown are not limited to this invention. As long as there is a difference in the reflected light between the first touch electrode 31 and the second touch electrode 32, the first prism layer 41, the spacer layer 43, and the second prism layer 42 provided in the embodiment of the present invention can be provided on the side of the touch component 3 away from the light-emitting component 2 to improve the problems caused by the difference in reflection.
[0088] Specifically, for example, in one possible implementation, combining Figures 4A-4E As shown, where, Figure 4A This is a cross-sectional schematic diagram of a display panel. Figure 4B This is a top view of a touch component with a first prism layer stacked on top. Figure 4C This is a top view of the touch control component. Figure 4D This is a top view of the first prism layer. Figure 4E This is a top view of the second prism layer. Figures 4B-4E The cross-sectional diagram along the dashed line CC1 can be represented as follows: Figure 4A As shown; Figure 4CAs shown, the touch component 3 includes a plurality of third touch electrodes 33 extending along the second direction A2 and arranged sequentially along the first direction A1, and a plurality of fourth touch electrodes 34 extending along the first direction A1 and arranged sequentially along the second direction A2; the third touch electrode 33 includes a plurality of third sub-touch electrode blocks 330 arranged sequentially along the second direction A2, and each third sub-touch electrode block 330 of the same third touch electrode 33 is an integral structure; the fourth touch electrode 34 includes fourth sub-touch electrode blocks 340 arranged sequentially along the first direction A1, and adjacent fourth sub-touch electrode blocks 340 are electrically connected through the second bridging portion 62.
[0089] Specifically, the third touch electrode 33 and the fourth touch electrode 34 can be on the same layer and made of the same material, while the second bridging portion 62 can be located on a different layer from the fourth touch electrode 34, with a second insulating layer separating them. Specifically, the second bridging portion 62 can electrically connect adjacent fourth sub-touch electrode blocks 340 through a through-hole penetrating the second insulating layer. It should be noted that... Figure 4A To more clearly illustrate the relationship between the touch component and the first prism layer and the second prism layer, the second insulating layer and the second bridging layer where the second bridging portion 62 is located are not shown. However, the present invention is not limited thereto. In specific implementations, the display panel may also be provided with a second insulating layer and a second bridging layer where the second bridging portion 62 is located.
[0090] In one possible implementation, such as Figure 4A and Figure 4C As shown, the third sub-touch electrode block 330 is rectangular, and the fourth sub-touch electrode block 340 is rectangular; the width e5 of the orthographic projection of the third sub-touch electrode block 330 onto the substrate 1 in the second direction A2 is smaller than the width e6 of the orthographic projection of the fourth sub-touch electrode block 340 onto the substrate 1 in the second direction A2; as shown... Figure 4D and Figure 4E As shown, the first prism 410 includes a strip-shaped first sub-prism 411 and a second sub-prism 412 extending along the first direction A1 and alternately arranged along the second direction A2; the second prism 420 includes a strip-shaped third sub-prism 421 and a fourth sub-prism 422 extending along the first direction A1 and alternately arranged along the second direction A2; the maximum width e81 of the orthographic projection of the third sub-prism 421 onto the substrate 1 in the second direction A2 is the same as the maximum width e72 of the orthographic projection of the second sub-prism 412 onto the substrate 1 in the second direction A2, and the maximum width e82 of the orthographic projection of the fourth sub-prism 422 onto the substrate 1 in the second direction A2 is the same as the maximum width e71 of the orthographic projection of the first sub-prism 411 onto the substrate 1 in the second direction A2.
[0091] In one possible implementation, combined with Figure 4A , Figure 4B , Figure 4C , Figure 4D and Figure 4E As shown, the maximum width e72 of the orthographic projection of the second sub-prism 412 onto the substrate 1 in the second direction A2 is the same as the maximum width e6 of the orthographic projection of the fourth sub-touch electrode block 340 onto the substrate 1 in the second direction A2; the orthographic projection of the second sub-prism 412 onto the substrate 1 coincides with the orthographic projection of the fourth touch electrode 340 onto the substrate 1; the maximum width e71 of the orthographic projection of the first sub-prism 411 onto the substrate 1 in the second direction A2 is the same as the maximum width e5 of the orthographic projection of the third sub-touch electrode block 330 onto the substrate 1 in the second direction A2; the orthographic projection of the first sub-prism 411 onto the substrate 1 coincides with the region where the orthographic projections of the multiple third sub-touch electrode blocks 330 between two adjacent fourth touch electrodes 34 are located on the substrate 1.
[0092] In one possible implementation, the width e5 of the orthographic projection of the third sub-touch electrode block 330 onto the substrate 1 in the second direction A2 can be equal to the width e6 of the orthographic projection of the fourth sub-touch electrode block 340 onto the substrate 1 in the second direction A2. Specifically, the first prism layer 41 can be provided with a plurality of first prisms 410 arranged closely with equal width in the second direction A2. The area where the plurality of third sub-touch electrode blocks 330 are located between each fourth touch electrode 34 or adjacent fourth touch electrodes 34 is covered by one or more first prisms 410. The second prism layer can be provided with a plurality of closely arranged second prisms 420 that are the same width as the first prisms 410 in the second direction A2, and the vertices of the second prisms 420 are staggered with the vertices of the first prisms 410. In another possible implementation, the width e5 of the orthographic projection of the third sub-touch electrode block 330 onto the substrate 1 in the second direction A2 is not equal to the width e6 of the orthographic projection of the fourth sub-touch electrode block 340 onto the substrate 1 in the second direction A2. Specifically, the first prism layer 41 can be provided with a plurality of first prisms 410 arranged closely with equal width in the second direction A2. The area where the plurality of third sub-touch electrode blocks 330 are located between each fourth touch electrode 34 or adjacent fourth touch electrodes 34 is covered by one or more first prisms 410. The second prism layer can be provided with a plurality of closely arranged second prisms 420 that are the same width as the first prisms 410 in the second direction A2, and the vertices of the second prisms 420 are staggered with the vertices of the first prisms 410.
[0093] In one possible implementation, the cross-section of the second prism 420 perpendicular to the substrate 1 and parallel to the second direction A2 has the same shape as the cross-section of the first prism 410 perpendicular to the substrate 1 and parallel to the second direction A2; the cross-section of the first prism 410 perpendicular to the substrate 1 and parallel to the second direction A2 is triangular, such as... Figure 1 or Figure 4AAs shown; or, the first prism 410 has a semi-circular cross-sectional shape perpendicular to the substrate 1 and parallel to the second direction A2, as shown. Figure 5 or Figure 6 As shown; or, the first prism 410 has a semi-elliptical cross-sectional shape in a cross-section perpendicular to the substrate 1 and parallel to the second direction A2.
[0094] In one possible implementation, combined with Figures 7A-7E As shown, where, Figure 7A This is a cross-sectional schematic diagram of a display panel. Figure 7B This is a top view of a touch component with a first prism layer stacked on top. Figure 7C This is a top view of the touch control component. Figure 7D This is a top view of the first prism layer. Figure 7E This is a top view of the second prism layer. Figures 7B-7E The cross-sectional diagram along the dashed line DD1 can be represented as follows: Figure 7A As shown; Figure 7C As shown, the touch component 3 includes multiple third touch electrodes 33 extending along the second direction A2 and arranged sequentially along the first direction A1, and multiple fourth touch electrodes 34 extending along the first direction A1 and arranged sequentially along the second direction A2. Each third touch electrode 33 includes multiple third sub-touch electrode blocks 330 arranged sequentially along the second direction A2, with each third sub-touch electrode block 330 of the same third touch electrode 33 forming an integral structure. Each fourth touch electrode 34 includes fourth sub-touch electrode blocks 340 arranged sequentially along the first direction A1, with adjacent fourth sub-touch electrode blocks 340 electrically connected via a second bridging portion 62. Specifically, the third sub-touch electrode blocks 340 and the fourth sub-touch electrode blocks 440 are rhomboid in shape; the first prism 410 is block-shaped; the second prism 420 is block-shaped; the center O1 of the orthographic projection of the second prism 420 onto the substrate 1 coincides with the convergence point O2 of the four adjacent first prisms 410 on the substrate 1. Specifically, the first prism layer 41 may include a plurality of closely arranged first prisms 410, each first prism 410 corresponding to cover a third sub-touch electrode block 330 or a fourth touch electrode block 430. The second prism layer 42 may include a plurality of closely arranged second prisms 420. Among the first prisms 410 and second prisms 420 located in the same row, the orthographic projection of the vertex of the second prism 420 onto the substrate 1 is located between the orthographic projections of the vertices of two adjacent first prisms 410 onto the substrate 1.
[0095] In one possible implementation, such as Figure 7B and Figure 7DAs shown, the first prism 410 includes a first sub-prism block 413 and a second sub-prism block 414; the orthographic projection of the first sub-prism block 413 on the substrate 1 coincides with the orthographic projection of the third sub-touch electrode 330 on the substrate 1; the orthographic projection of the second sub-prism block 414 on the substrate 1 coincides with the orthographic projection of the fourth touch electrode block 430 on the substrate 1.
[0096] In one possible implementation, the shape of the second prism 420 is the same as that of the first prism 410; the shape of the first prism 410 is a square pyramid, a hemisphere, or a semi-ellipsoid.
[0097] In one possible implementation, see Figure 8 As shown, the spacer layer 43 includes a first sub-spacer layer 431 and a second sub-spacer layer 432 located on the side of the first sub-spacer layer 431 away from the touch member 3. The refractive index of the first sub-spacer layer 431 is the same as that of the second sub-spacer layer 432. The surface of the first sub-spacer layer 431 facing the first prism layer 41 is complementary to the surface shape of the first prism layer 41. The surface of the second sub-spacer layer 432 facing the second prism layer 42 is complementary to the surface of the second prism layer 42. In a specific implementation, after forming the first prism layer 41, a planarization layer can be covered on the surface of the first prism layer 41 as the first sub-spacer layer 431. After forming the second prism layer 42 on the surface of the cover plate 5, another planarization layer can be covered on the side of the second prism layer 42 away from the cover plate as the second sub-spacer layer 432. Then, the display substrate having the first sub-spacer layer 431 and the cover plate having the second sub-spacer layer 432 are bonded together to form the spacer layer 43 including the first sub-spacer layer 431 and the second sub-spacer layer 432. Specifically, spacer layer 43 may further include a third sub-spacer layer located between the first sub-spacer layer 431 and the second sub-spacer layer 432, for bonding the first sub-spacer layer 431 and the second sub-spacer layer 432. Specifically, the refractive index of the third sub-spacer layer is equal to the refractive index of both the first sub-spacer layer 431 and the second sub-spacer layer 432.
[0098] In one possible implementation, combined with Figure 1 As shown, the display panel also includes a cover plate 5 located on the side of the second prism layer 42 opposite to the spacer layer 43.
[0099] In one possible implementation, combined with Figure 1 and Figure 8 As shown, the second prism layer 42 is attached to the cover plate 5 and is an independent structure from the cover plate 5.
[0100] In one possible implementation, combined with Figures 9-12As shown, the second prism layer 42 and the cover plate 5 are an integral structure. In this embodiment of the invention, the second prism layer 42 and the cover plate 5 are an integral structure, and the second prism layer 42 can be formed directly by etching on the surface of the cover plate 5, which can simplify the manufacturing process of the display panel.
[0101] In one possible implementation, the refractive index of the first prism layer 41 is the same as that of the second prism layer 42. Specifically, the materials of the first prism layer 41 and the second prism layer 42 can be optical adhesive (OC adhesive), and the refractive index range can be 1.4 to 1.55, specifically, for example, 1.5.
[0102] Specifically, the material of the spacer layer 43 can also be (OC glue), and the refractive index range can be 1.6 to 1.75, specifically, for example, it can be 1.7.
[0103] Based on the same inventive concept, embodiments of the present invention also provide a display device, including a display panel as provided in embodiments of the present invention.
[0104] Based on the same inventive concept, embodiments of the present invention also provide a method for manufacturing a display panel as provided in embodiments of the present invention, see [link to relevant documentation]. Figure 13 As shown, it includes:
[0105] Step S100: A light-emitting component and a touch component are sequentially formed on one side of a substrate.
[0106] Step S200: Apply a first adhesive layer to the side of the touch component away from the light-emitting component, and pattern the first adhesive layer to form a first prism layer including multiple first prisms.
[0107] Step S300: Coat a spacer layer on the side of the first prism layer away from the touch component;
[0108] Step S400: Attach a cover plate with a second prism layer to the side of the spacer layer facing away from the first prism layer.
[0109] In one possible implementation, see Figure 14 As shown, regarding step S400, attaching a cover plate having a second prism layer to the side of the spacer layer facing away from the first prism layer includes:
[0110] Step S401: Form a second prism layer comprising a plurality of second prisms on one side of the cover plate;
[0111] Step S402: Adhere the side of the cover plate with the second prism layer to the spacer layer.
[0112] Specifically, after completing the touch component 3, a prism with a triangular cross-section (lens1, serving as the first prism layer 41) is prepared on the touch component 3 using low-refractive OC adhesive (refractive index 1.4-1.55, preferably 1.5). Then, a high-refractive OC layer (refractive index 1.6-1.75, preferably 1.7, serving as the spacer layer 43) is applied. On the inner side of the cover plate 5, a lens2 (serving as the second prism layer 42) with a shape and position complementary to lens1 is prepared using low-refractive OC adhesive. That is, the orthographic projection of the centroid of the cross-section of lens2 is located at the intersection of the bottom edges of two adjacent lenses1. Finally, the cover plate 5 with lens2 is attached to the high-refractive OC.
[0113] The beneficial effects of this embodiment of the invention are as follows: In this embodiment, a first prism layer 41, a second prism layer 42, and a spacer layer 43 located between the first prism layer 41 and the second prism layer 42 are provided on the side of the touch component 3 away from the light-emitting component 2. The vertices of the first prism 410 and the second prism 420 are arranged opposite each other. The orthographic projection of the vertex of the second prism 420 onto the substrate 1 is misaligned with the orthographic projection of the vertex of the first prism 410 onto the substrate 1. This allows light to pass through the first prism 41, the spacer layer 43, and the second prism 42, resulting in both reflected light from the first touch electrode 31 and reflected light from the second touch electrode 32 in various regions of the light-emitting surface (e.g., ...). Figure 1 As shown by the arrows (where the dashed arrows represent the reflected light from the first touch electrode 31 and the solid arrows represent the reflected light from the second touch electrode 32), this reduces the horizontal stripe defects caused by the difference in reflection between the areas where the first touch electrode 31 and the second touch electrode 32 are located.
[0114] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A display panel, characterized in that, include: A substrate, wherein a light-emitting component, a touch component, a first prism layer, a spacer layer, and a second prism layer are sequentially stacked on one side of the substrate; wherein the refractive index of the spacer layer is higher than that of the first prism layer and higher than that of the second prism layer. The first prism layer includes a plurality of first prisms, and the second prism layer includes a plurality of second prisms. The vertices of the first prisms and the second prisms are arranged opposite each other, and the vertices are all facing the spacer layer. The orthographic projection of the vertices of the second prisms onto the substrate is misaligned with the orthographic projection of the vertices of the first prisms onto the substrate.
2. The display panel as described in claim 1, characterized in that, The vertex of the second prism is located at the intersection of the orthographic projections of two adjacent first prisms onto the substrate.
3. The display panel as described in claim 1, characterized in that, The touch component includes a plurality of first touch electrodes and second touch electrodes extending along a first direction and alternately arranged along a second direction; each first touch electrode includes a plurality of first touch electrode blocks arranged sequentially along the first direction; adjacent first touch electrode blocks are electrically connected through a first bridging portion; each second touch electrode is an integral structure; The first prism is a strip extending along the first direction and arranged sequentially along the second direction, and a plurality of the first prisms are closely arranged along the second direction; the second prism is a strip extending along the first direction and arranged sequentially along the second direction; a plurality of the second prisms are closely arranged along the second direction.
4. The display panel as described in claim 3, characterized in that, The width of the first touch electrode's orthogonal projection onto the substrate in the second direction is the same as the width of the second touch electrode's orthogonal projection onto the substrate in the second direction. The maximum width of the first prism's orthogonal projection onto the substrate in the second direction is the same as the maximum width of the second prism's orthogonal projection onto the substrate in the second direction.
5. The display panel as described in claim 4, characterized in that, The maximum width of the orthographic projection of the first touch electrode onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the first prism onto the substrate in the second direction, and the orthographic projection of the first touch electrode onto the substrate coincides with the orthographic projection of the first prism onto the substrate. Alternatively, the width of the orthographic projection of the first touch electrode onto the substrate in the second direction is an integer multiple of the maximum width of the orthographic projection of the first prism onto the substrate in the second direction, and the orthographic projection of the first touch electrode onto the substrate covers an integer number of the orthographic projections of the first prism onto the substrate.
6. The display panel as described in claim 1, characterized in that, The touch component includes a plurality of third touch electrodes extending along a second direction and arranged sequentially along a first direction, and a plurality of fourth touch electrodes extending along the first direction and arranged sequentially along the second direction. The third touch electrode includes a plurality of third sub-touch electrode blocks arranged sequentially along the second direction, and each of the third sub-touch electrode blocks of the same third touch electrode is an integral structure; the fourth touch electrode includes fourth sub-touch electrode blocks arranged sequentially along the first direction, and adjacent fourth sub-touch electrode blocks are electrically connected through a second bridging portion.
7. The display panel as described in claim 6, characterized in that, The third sub-touch electrode block is rectangular, and the fourth sub-touch electrode block is rectangular; the width of the third sub-touch electrode block projected onto the substrate in the second direction is smaller than the width of the fourth sub-touch electrode block projected onto the substrate in the second direction. The first prism includes a strip-shaped first sub-prism and a second sub-prism extending along the first direction and alternately arranged along the second direction; the second prism includes a strip-shaped third sub-prism and a fourth sub-prism extending along the first direction and alternately arranged along the second direction. The maximum width of the orthographic projection of the third sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the second sub-prism onto the substrate in the second direction. The maximum width of the orthographic projection of the fourth sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the first sub-prism onto the substrate in the second direction.
8. The display panel as described in claim 7, characterized in that, The maximum width of the second sub-prism's orthographic projection onto the substrate in the second direction is the same as the maximum width of the fourth sub-touch electrode block's orthographic projection onto the substrate in the second direction. The orthographic projection of the second sub-prism onto the substrate coincides with the orthographic projection of the fourth touch electrode onto the substrate. The maximum width of the orthographic projection of the first sub-prism onto the substrate in the second direction is the same as the maximum width of the orthographic projection of the third sub-touch electrode block onto the substrate in the second direction; the orthographic projection of the first sub-prism onto the substrate coincides with the region where the orthographic projections of the plurality of third sub-touch electrode blocks between two adjacent fourth touch electrodes are located on the substrate.
9. The display panel as described in claim 3 or 7, characterized in that, The second prism has the same cross-sectional shape as the first prism in the cross-sectional shape perpendicular to the substrate and parallel to the second direction. The first prism has a triangular, semi-circular, or semi-elliptical cross-sectional shape that is perpendicular to the substrate and parallel to the second direction.
10. The display panel as claimed in claim 6, characterized in that, The third sub-touch electrode block is rhomboid, and the fourth sub-touch electrode block is rhomboid; The first prism is block-shaped; the second prism is block-shaped; the center of the second prism's orthographic projection on the substrate coincides with the convergence point of the four adjacent first prisms on the substrate.
11. The display panel as claimed in claim 10, characterized in that, The first prism includes a first sub-prism block and a second sub-prism block; The orthographic projection of the first sub-prism block on the substrate coincides with the orthographic projection of the third sub-touch electrode on the substrate; the orthographic projection of the second sub-prism block on the substrate coincides with the orthographic projection of the fourth touch electrode block on the substrate.
12. The display panel as claimed in claim 11, characterized in that, The shape of the second prism is the same as that of the first prism; The first prism is in the shape of a square pyramid, a hemisphere, or a semi-ellipsoid.
13. The display panel as claimed in claim 1, characterized in that, The spacer layer includes a first sub-spacer layer and a second sub-spacer layer located on the side of the first sub-spacer layer away from the touch component, wherein the refractive index of the first sub-spacer layer is the same as the refractive index of the second sub-spacer layer. The surface of the first sub-spacer layer facing the first prism layer has a complementary shape to the surface shape of the first prism layer. The surface of the second sub-spacer layer facing the second prism layer is complementary to the surface of the second prism layer.
14. The display panel as claimed in claim 1, characterized in that, The display panel also includes a cover plate located on the side of the second prism layer opposite to the spacer layer.
15. The display panel as claimed in claim 14, characterized in that, The second prism layer is attached to the cover plate and is an independent structure from the cover plate.
16. The display panel as claimed in claim 14, characterized in that, The second prism layer and the cover plate are an integral structure.
17. The display panel as claimed in claim 1, characterized in that, The refractive index of the first prism layer is the same as that of the second prism layer.
18. A display device, characterized in that, Includes the display panel as described in any one of claims 1-17.
19. A method for manufacturing a display panel as described in any one of claims 1-17, characterized in that, include: A light-emitting component and a touch component are sequentially formed on one side of a substrate. A first adhesive layer is coated on the side of the touch component away from the light-emitting component, and the first adhesive layer is patterned to form a first prism layer including a plurality of first prisms; A spacer layer is coated on the side of the first prism layer opposite to the touch component; A cover plate having a second prism layer is attached to the side of the spacer layer opposite to the first prism layer.
20. The manufacturing method as described in claim 19, characterized in that, The method of attaching a cover plate having a second prism layer to the side of the spacer layer opposite to the first prism layer includes: A second prism layer comprising a plurality of second prisms is formed on one side of the cover plate; The side of the cover plate having the second prism layer is attached to the spacer layer.
Citation Information
Patent Citations
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