Display module and display device

Abstract

The present invention discloses a display module and a display device. The display module and the display device include a display area and a non-display area; the non-display area includes at least two high light transmittance areas and a wiring area; the display module and the display device also include: a display panel, a cover plate, a light shielding layer, a signal wiring and a visual compensation layer; wherein the light shielding layer includes at least two first hollow parts; the first hollow parts correspond to the high light transmittance areas one by one; the vertical projection of the high light transmittance areas on the plane where the cover plate is located is located within the vertical projection of the first hollow part on the plane where the cover plate is located; wherein the part where the vertical projection of the signal wiring on the plane where the cover plate is located and the vertical projection of the light shielding layer on the plane where the cover plate is located do not overlap is the first division, and the part where the vertical projection of the visual compensation layer on the plane where the cover plate is located and the vertical projection of the light shielding layer on the plane where the cover plate is located do not overlap is the second division; the vertical projection of the light shielding layer on the plane where the cover plate is located is located in the surrounding area of ​​the vertical projection of the first division on the plane where the cover plate is located and the vertical projection of the second division on the plane where the cover plate is located.

Description

[0001] This application is a divisional application with the application date of December 23, 2020, application number 202011545826.8, and the name of the invention being “A display module and display device”. Technical Field

[0002] The embodiments of the present invention relate to the field of display technology, and in particular to a display module and a display device. Background Art

[0003] Display panels with a high screen-to-body ratio are becoming more and more popular among consumers. Currently, in order to increase the screen-to-body ratio of a display panel, a hollow area is usually added to the display area of ​​the display panel, and a camera module is installed in this area.

[0004] In order to prevent unnecessary light leakage from affecting the performance of the camera set in the hollow area, a circle of light shielding layer is usually set on the cover plate to effectively block the light around the hollow area to improve the camera quality of the camera module. However, the light shielding layer cannot completely block the signal wiring between the display area and the hole area. As a result, the area with exposed signal wiring and the area without signal wiring reflect and / or absorb external light differently, which leads to uneven display and affects the display effect of the display panel. Summary of the invention

[0005] Embodiments of the present invention provide a display module and a display device, which can improve the display uniformity of the display module.

[0006] In a first aspect, an embodiment of the present invention provides a display module, the display module comprising: a display area and a non-display area; the display area surrounds the non-display area; the non-display area comprises at least two high light transmittance areas and a wiring area surrounding the high light transmittance areas;

[0007] Also included: a display panel;

[0008] A cover plate, located on one side of the display panel;

[0009] A light shielding layer is located on a side of the cover plate close to the display panel and located in the non-display area; wherein the light shielding layer includes at least two first hollow portions; the first hollow portions correspond to the high light transmittance areas one by one; the vertical projection of the high light transmittance areas on the plane where the cover plate is located is located within the vertical projection of the first hollow portions on the plane where the cover plate is located;

[0010] A signal routing line is located in the wiring area;

[0011] A visual compensation layer, located in the wiring area;

[0012] The vertical projection of the light shielding layer on the plane where the cover plate is located does not overlap with the vertical projection of the signal line on the plane where the cover plate is located, and the vertical projection of the light shielding layer on the plane where the cover plate is located does not overlap with the vertical projection of the visual compensation layer on the plane where the cover plate is located;

[0013] The portion where the vertical projection of the signal line on the plane where the cover plate is located does not overlap with the vertical projection of the light shielding layer on the plane where the cover plate is located is the first subdivision, and the portion where the vertical projection of the visual compensation layer on the plane where the cover plate is located does not overlap with the vertical projection of the light shielding layer on the plane where the cover plate is located is the second subdivision;

[0014] The vertical projection of the light shielding layer on the plane where the cover plate is located is located in the surrounding area of ​​the vertical projection of the first section on the plane where the cover plate is located and the vertical projection of the second section on the plane where the cover plate is located.

[0015] In a second aspect, an embodiment of the present invention further provides a display device, which includes: the display module described in the first aspect.

[0016] The display module and display device provided by the embodiments of the present invention, by setting a shading layer on the side of the cover plate close to the display panel, shielding the light around the high-light-transmittance area through the shading layer, preventing unnecessary light leakage from affecting the performance of the photosensitive device set in the high-light-transmittance area, and the vertical projection of the high-light-transmittance area on the plane where the cover plate is located is located within the vertical projection of the first hollow portion on the plane where the cover plate is located. In this way, it is avoided that the shading layer cannot completely cover the area of ​​the wiring area close to the high-light-transmittance area due to process errors, so that unnecessary light leakage through this area affects the performance of the photosensitive device set in the high-light-transmittance area; in addition, this embodiment sets a visual compensation layer in the wiring area, and the setting of the visual compensation layer makes it possible for the light reflected from the shading layer around the human eye to be consistent when the same external ambient light is incident on the display panel, thereby avoiding the problem of visual difference between the area where the signal wiring is exposed and the area where the signal wiring is not exposed in the prior art, thereby causing uneven display. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a top view structure of a display module provided by the prior art;

[0018] Figure 2 yes Figure 1 Cross-section along CC' direction;

[0019] Figure 3 yes Figure 1 A schematic diagram of a top view of the structure of a display panel in a display module;

[0020] Figure 4 yes Figure 1 A schematic diagram of a top view of the structure of a cover plate in a display module;

[0021] Figure 5 is a schematic diagram of a top view structure of a display module provided by an embodiment of the present invention;

[0022] Figure 6 is a schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention;

[0023] Figure 7 is a schematic diagram of a top view of a cover plate provided by an embodiment of the present invention;

[0024] Figure 8 is a schematic diagram of a top view of a polarizer provided by an embodiment of the present invention;

[0025] Fig. 9 is a schematic diagram of a top view of another polarizer provided by an embodiment of the present invention;

[0026] Fig.10 is a schematic diagram of a top view structure of another display module provided by an embodiment of the present invention;

[0027] Fig.11 is a schematic diagram of a top view of another polarizer provided by an embodiment of the present invention;

[0028] Fig.12 is a schematic diagram of a top view of another polarizer provided by an embodiment of the present invention;

[0029] Fig.13 is a schematic diagram of a top view structure of another display module provided by an embodiment of the present invention;

[0030] Fig.14 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention;

[0031] Fig.15 is a schematic diagram of a partial film layer structure of a display module provided by an embodiment of the present invention;

[0032] Fig.16 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention;

[0033] Fig.17 is a schematic diagram of a top view structure of another display module provided by an embodiment of the present invention;

[0034] Fig.18 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention;

[0035] Fig.19 is a schematic diagram of a partial film layer structure of another display module provided by an embodiment of the present invention;

[0036] Fig. 20 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention;

[0037] Fig.21 is a schematic diagram of a partial film layer structure of another display module provided by an embodiment of the present invention;

[0038] Fig. 22 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention;

[0039] Fig.23 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention;

[0040] Fig.24 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be fully described below in combination with the drawings in the embodiments of the present invention through specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work fall within the protection scope of the present invention.

[0042] Figure 1 It is a schematic diagram of a top view structure of a display module in the prior art. Figure 2 yes Figure 1 Cross-section along CC' direction, Figure 3 yes Figure 1 A schematic diagram of a top view structure of a display panel in a display module, Figure 4 yes Figure 1 A schematic diagram of the top view structure of the cover plate in the display module is shown in FIG. Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the display module 100' includes a display area AA' and a non-display area BB', the non-display area BB' includes at least two high light transmittance areas BD' and a wiring area BC' surrounding the high light transmittance area BD'; the display module 100' also includes: a display panel 10', a signal wiring 20' is arranged at a position of the display panel 10' corresponding to the wiring area BC'; a cover plate 30', located on one side of the display panel 10'; a light shielding layer 50', located on a side of the cover plate 30' close to the display panel 10' and located in the non-display area BB', and a polarizer 40' located between the cover plate 30' and the display panel 10'; wherein the light shielding layer 50' includes at least two first hollow portions BE'; the first hollow portions BE' correspond to the high light transmittance areas BD' one by one, and the setting of the first hollow portions BE' ensures that the camera module arranged in the high light transmittance area BD' works normally, and at the same time, the light shielding layer 50' blocks the light around the high light transmittance area BD' to prevent unnecessary light leakage from affecting the performance of the camera arranged in the high light transmittance area BD'.

[0043] However, since the size of the light shielding layer 50' set on the cover plate 30' cannot be changed at will, and in order to avoid the light shielding layer 50' blocking the sub-pixels in the display area AA' due to process errors, when the light shielding layer 50' is set, the light shielding layer 50' will be a certain distance away from the display area AA', so that the signal line 20' will be partially exposed and cannot be blocked by the light shielding layer 50'. For example, the width of the exposed signal line 20' is 200μm. Figure 2 When at a viewing angle of 0 degrees, the external ambient light I0 is incident on the cover plate 30', and after being refracted and absorbed by the polarizer 40' and the like, reaches the area of ​​the display panel 10' where the signal wiring 20' is not set. After a certain dispersion, the reflected light I3 passes through the cover plate 30' and the polarizer 40' and is refracted as I4 to enter the human eye; similarly, when the same ambient light I0 reaches the signal wiring 20', since the signal wiring 20' is black, the absorption and / or reflectivity of light is different from that of the area where the signal wiring 20' is not set, and the reflected light I6 that finally reaches the human eye will be, for example, much smaller than I4, causing the human eye to see a visual difference that the signal wiring 20' is darker than the area where the signal wiring 20' is not set; this leads to uneven display and affects the display effect of the display panel.

[0044] Based on the above problems, an embodiment of the present invention provides a display module, comprising: a display area and a non-display area; the display area surrounds the non-display area; the non-display area includes at least two high-light-transmittance areas and a wiring area surrounding the high-light-transmittance area; the display module also includes: a display panel; a cover plate, located on one side of the display panel; a shading layer, located on the side of the cover plate close to the display panel and located in the non-display area; wherein the shading layer includes at least two first hollow portions; the first hollow portions correspond to the high-light-transmittance areas one by one; the vertical projection of the high-light-transmittance area on the plane where the cover plate is located is located within the vertical projection of the first hollow portions on the plane where the cover plate is located; a signal routing line is located in the wiring area; a visual compensation layer is located in the wiring area; wherein the shading layer is located on the cover plate The vertical projection of the plane and the vertical projection of the signal wiring on the plane where the cover plate is located at least partially do not overlap, and the vertical projection of the shading layer on the plane where the cover plate is located and the vertical projection of the visual compensation layer on the plane where the cover plate are located at least partially do not overlap; and the part where the vertical projection of the signal wiring on the plane where the cover plate is located and the vertical projection of the shading layer on the plane where the cover plate are located do not overlap is the first division, and the part where the vertical projection of the visual compensation layer on the plane where the cover plate is located and the vertical projection of the shading layer on the plane where the cover plate are located do not overlap is the second division; the vertical projection of the shading layer on the plane where the cover plate is located is located in the surrounding area of ​​the vertical projection of the first division on the plane where the cover plate and the vertical projection of the second division on the plane where the cover plate are located.

[0045] By adopting the above technical scheme, a shading layer is arranged on the side of the cover plate close to the display panel, and the shading layer is used to block the light around the high-light-transmittance area to prevent unnecessary light leakage from affecting the performance of the photosensitive device arranged in the high-light-transmittance area, and the vertical projection of the high-light-transmittance area on the plane where the cover plate is located is located within the vertical projection of the first hollow portion on the plane where the cover plate is located. In this way, it is avoided that the shading layer cannot completely cover the area of ​​the wiring area close to the high-light-transmittance area due to process errors, so that unnecessary light leakage through this area affects the performance of the photosensitive device arranged in the high-light-transmittance area; in addition, this embodiment arranges a visual compensation layer in the wiring area, and the setting of the visual compensation layer makes it possible for the light reflected from the shading layer to the human eye to be consistent when the same external ambient light is incident on the display panel, thereby avoiding the problem of uneven display caused by only exposing the signal wiring in the prior art, resulting in visual differences between the area where the signal wiring is exposed and the area where the signal wiring is not exposed.

[0046] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Figure 5 is a schematic diagram of a top view structure of a display module provided by an embodiment of the present invention, Figure 6is a schematic diagram of a top view structure of a display panel provided by an embodiment of the present invention, Figure 7 is a schematic diagram of a top view of a cover plate provided by an embodiment of the present invention, such as Figure 5 , Figure 6 and Figure 7 As shown, the display module 100 provided by the embodiment of the present invention includes: a display area AA and a non-display area BB; the display area AA surrounds the non-display area BB; the non-display area BB includes at least two high light transmittance areas BD and a wiring area BC surrounding the high light transmittance area BD; the display module 100 also includes: a display panel 10; a cover plate 30, located on one side of the display panel 10; a light shielding layer 50, located on a side of the cover plate 30 close to the display panel 10 and located in the non-display area BB; wherein the light shielding layer 50 includes at least two first hollow portions BE; the first hollow portions BE correspond to the high light transmittance areas BD one by one; the high light transmittance areas BD are arranged in a plurality of patterns; the light shielding layer 50 is provided with ... The vertical projection of the area BD on the plane where the cover plate 30 is located is located within the vertical projection of the first hollow portion BE on the plane where the cover plate 30 is located; the signal line 20 is located in the wiring area BC; the visual compensation layer 60 is located in the wiring area BC; wherein the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located and the vertical projection of the signal line 20 on the plane where the cover plate 30 is located at least partially do not overlap, and the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located and the vertical projection of the visual compensation layer 60 on the plane where the cover plate 30 is located at least partially do not overlap; and the vertical projection of the signal line 20 on the plane where the cover plate 30 is located The portion where the shadow and the vertical projection of the shading layer 50 on the plane where the cover plate 30 are located do not overlap is the first sub-portion 21, that is, although the shading layer 50 can block part of the non-display area BB to prevent unnecessary light leakage from affecting the performance of the camera set in the high light transmittance area BD, it can be seen from the above content that the size of the shading layer 50 set on the cover plate 30 cannot be changed at will, and in order to avoid process errors that cause the shading layer 50 to block sub-pixels in the display area AA, when the shading layer 50 is set, the shading layer 50 will be at a certain distance from the display area AA, which will cause the signal The portion of the wiring 20 that is partially exposed and cannot be blocked by the shading layer 50 is the first division 21; the portion where the vertical projection of the visual compensation layer 60 on the plane where the cover plate 30 is located and the vertical projection of the shading layer 50 on the plane where the cover plate 30 is located do not overlap is the second division 61, that is, due to the coverage of the shading layer 50, only a portion of the visual compensation layer 60 is exposed, and this portion is the second division; the vertical projection of the shading layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the first division 21 on the plane where the cover plate 30 is located and the vertical projection of the second division 61 on the plane where the cover plate 30 is located.

[0048] The so-called wiring area BC is the area of ​​the non-display area BB except the high light transmittance area BD, specifically including the area where the signal wiring 20 is set, the area between the area where the signal wiring 20 is set and the display area AA, the width H1 of this area can be 40μm, for example, the area BF between two adjacent high light transmittance areas BD, and the area BH between the area where the signal wiring 20 is set and the high light transmittance area BD. Among them, in order to facilitate the design of sub-pixels in the display panel 10, the area BF between two adjacent high light transmittance areas BD is also provided with sub-pixels, but the sub-pixels in this area are not displayed.

[0049] The wiring area BC is arranged around the high light transmittance area BD, that is, the wiring area BC is located at the periphery of the high light transmittance area BD, and forms a closed shape at the periphery of the high light transmittance area BD. The vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the first branch 21 on the plane where the cover plate 30 is located and the vertical projection of the second branch 61 on the plane where the cover plate 30 is located, that is, the shape formed by the vertical projection of the first branch 21 on the plane where the cover plate 30 is located and the vertical projection of the second branch 61 on the plane where the cover plate 30 is located is located outside the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located, and forms a continuous and closed shape at the periphery of the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located.

[0050] The signal line 20 in this embodiment is a line that provides corresponding signals to the internal structure of the display panel 10 to enable it to work normally. The signal line 20 may include, for example, a touch line, a data line, a scan line, etc. This embodiment does not specifically limit the type of the signal line 20.

[0051] Specifically, the display panel 10 is protected by setting the cover plate 30 to prevent water and oxygen from corroding the internal structure of the display panel 10. A light shielding layer 50 is set on the side of the cover plate 30 close to the display panel 10, and the vertical projection of the high light transmittance area BD on the plane where the cover plate 30 is located is located within the vertical projection of the first hollow portion BE of the light shielding layer 50 on the plane where the cover plate 30 is located, that is, the light around the high light transmittance area BD can be shielded by the light shielding layer 50 to prevent unnecessary light leakage from affecting the performance of the photosensitive device set in the high light transmittance area BD, and avoid the process error causing the light shielding layer 50 to fail to completely cover the area of ​​the wiring area BC close to the high light transmittance area BD, so that unnecessary light leakage passes through this area and affects the performance of the camera set in the high light transmittance area BD.

[0052] Specifically, since the first section 21 of the signal wiring 20 is exposed, the light at the position where the first section 21 is exposed and the area where the signal wiring is not exposed reflect and / or absorb the external light differently, resulting in visual differences. Therefore, in this embodiment, a visual compensation layer 60 is provided to make the reflection and / or absorption of external light around the shading layer 50 tend to be consistent. In this way, the problem of only exposing the first section 21 in the prior art, resulting in visual differences between the area where the first section 21 is exposed and the area where the signal wiring is not provided, affecting the display uniformity, is avoided.

[0053] Optionally, the reflectivity of the visual compensation layer 60 is A, the reflectivity of the signal wiring 20 is B, and 0<|AB| / B≤50%. For example, it is 12%, 25% and 50%, etc. By setting the relationship between the reflectivity of the visual compensation layer 60 and the reflectivity of the signal wiring 20 to 0<|AB| / B≤50%, it can be ensured that the reflection and / or absorption of the external light around the light shielding layer 50 tends to be consistent.

[0054] Optionally, the material of the visual compensation layer 60 may be the same as that of the signal trace 20; or, the material of the visual compensation layer 60 may include, for example, a mixture of carbon black powder and antistatic liquid or a metal ink material, wherein the metal ink material may be, for example, a combination of silver, copper and oxides, and the display uniformity effect may be achieved by adjusting the ratio between silver, copper and oxides. It should be noted that the material of the visual compensation layer 60 includes but is not limited to the above examples, and those skilled in the art may select the material of the visual compensation layer 60 according to actual conditions.

[0055] In actual configuration, there are many ways to configure the specific position and shape of the visual compensation layer. A typical example is described in detail below, and the following content does not limit the present invention.

[0056] Optionally, the display module further includes a polarizer, which is disposed between the cover plate and the display panel; and the visual compensation layer is disposed on the polarizer.

[0057] The polarizer can prevent ambient light from entering the metal layer of the display panel and then being reflected, thereby affecting the display. In this embodiment, the visual compensation layer is disposed on the polarizer to avoid the problem of corrosion of the metal layer inside the display panel when preparing the visual compensation layer.

[0058] When the visual compensation layer is disposed on the polarizer, there are also many ways to configure the shape and position of the visual compensation layer on the polarizer.

[0059] For example, Figure 8 is a schematic diagram of a top view of a polarizer provided by an embodiment of the present invention, and further see Figure 5 , Figure 6 , Figure 7 and Figure 8 , the shape of the visual compensation layer 60 is a gourd shape, at this time, only a part of the visual compensation layer 60 is exposed, and the exposed part is the second sub-portion 61. In addition, since the vertical projection of the first sub-portion 21 on the plane where the cover plate 30 is located does not overlap with the vertical projection of the second sub-portion 61 on the plane where the cover plate 30 is located, the second sub-portion 61 of the visual compensation layer 60 and the first sub-portion of the signal wiring 20 are not covered by the light shielding layer 50 at this time, that is, the part of the non-display area BB of the display module 100 that can reflect and / or absorb ambient light is the first sub-portion 21 and the second sub-portion 61. At the same time, since the vertical projection of the shading layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the first section 21 on the plane where the cover plate 30 is located and the vertical projection of the second section 61 on the plane where the cover plate 30 is located, that is, the figure formed by the exposed first section 21 and the second section 61 surrounds the shading layer 50, the reflection and / or absorption of external light around the shading layer 50 tends to be consistent, avoiding the problem in the prior art that only the first section 21 is exposed, resulting in visual differences between the area where the first section 21 is exposed and the area where no signal routing is set, affecting the display uniformity.

[0060] For example, Fig. 9 is a schematic diagram of a top view structure of another polarizer provided by an embodiment of the present invention, such as Fig. 9 As shown, Figure 8 The difference is, Fig. 9 The visual compensation layer 60 is only partially provided. Figure 8 In the visual compensation layer 60 shown, only the exposed second portion 61 reflects and / or absorbs external light, while most of it is covered by the light shielding layer 50 . Therefore, the visual compensation layer 60 set in this embodiment is the exposed second portion 61 . At the same time, since the vertical projection of the first division 21 on the plane where the cover plate 30 is located does not overlap with the vertical projection of the second division 61 on the plane where the cover plate 30 is located, the exposed portion of the non-display area BB of the display module 100 that can reflect and absorb ambient light is the first division 21 and the second division 61. Moreover, since the vertical projection of the shading layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the first division 21 on the plane where the cover plate 30 is located and the vertical projection of the second division 61 on the plane where the cover plate 30 is located, that is, the pattern formed by the exposed first division 21 and the second division 61 surrounds the shading layer 50. In this way, the reflection and / or absorption of external light around the shading layer 50 tends to be consistent. In this way, the problem of only exposing the first division 21 in the prior art, resulting in visual differences between the area where the first division 21 is exposed and the area where no signal routing is set, affecting the display uniformity, is avoided.

[0061] For example, Fig.10is a top view structural diagram of another display module provided by an embodiment of the present invention, Fig.11 is a schematic diagram of a top view structure of another polarizer provided by an embodiment of the present invention, such as Fig.10 and Fig.11 As shown, the visual compensation layer 60 is located on the polarizer 40 and in the step line area BC, and the shape profile of the visual compensation layer 60 is the same as the shape profile of the light shielding layer 50. Among them, the visual compensation layer 60 includes a second hollow portion BI, the second hollow portion BI corresponds to the high light transmittance area BD one by one, and the aperture of the second hollow portion BI is larger than the aperture of the first hollow portion BE. The setting of the second hollow portion BI ensures that the camera module set in the high light transmittance area BD works normally. At the same time, since the shape profile of the visual compensation layer 60 is the same as the shape profile of the light shielding layer 50, when preparing the visual compensation layer, the process difficulty is reduced and the preparation efficiency of the display module 100 is improved. Since the vertical projection of the first subsection 21 on the plane where the cover plate 30 is located is located within the vertical projection of the second subsection 61 on the plane where the cover plate 30 is located; the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the second subsection 61 on the plane where the cover plate 30 is located. That is, the exposed first subdivision 21 of the signal wiring 20 is shielded by the second subdivision 61 of the visual compensation layer 60, and only the second subdivision 61 of the visual compensation layer 60 is exposed, and the light shielding layer 50 is located in the surrounding area of ​​the second subdivision 61. Since the light shielding layer 50 is surrounded by only the second subdivision 61, the second subdivision 61 reflects and absorbs the external light in the same manner, so that the reflection and / or absorption of the external light by the light shielding layer 50 is consistent, thus avoiding the problem in the prior art that only the first subdivision 21 is exposed, resulting in a visual difference between the area where the first subdivision 21 is exposed and the area where the signal wiring is not set, which affects the display uniformity.

[0062] For example, Fig.12 is a schematic diagram of a top view structure of another polarizer provided by an embodiment of the present invention, such as Fig.12 As shown, Fig.11 The difference is, Fig.12 The visual compensation layer 60 is only partially provided. Fig.11 When the visual compensation layer 60 is shown, only the exposed second section 61 is functional, and most of it will be covered by the shading layer 50 and will not function. Therefore, the visual compensation layer 60 set in this embodiment is the exposed second section 61. Similarly, at this time, the part of the non-display area BB of the display module 100 that is exposed and can reflect and absorb ambient light is the second section 61, and the vertical projection of the shading layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the second section 61 on the plane where the cover plate 30 is located, that is, the pattern surrounded by the exposed second section 61 surrounds the shading layer 50. In this way, the reflection and / or absorption of external light around the shading layer 50 tends to be consistent.

[0063] It should be noted that the shape of the visual compensation layer 60 includes but is not limited to the above examples, and those skilled in the art can set it according to the actual situation of the product, as long as the visual compensation layer 60 can be set so that the reflection and / or absorption of external light around the shading layer 50 tends to be consistent.

[0064] Optionally, when the visual compensation layer is located on the polarizer, the visual compensation layer is set on the side of the polarizer away from the display panel, and then an adhesive layer is set on the side of the polarizer where the visual compensation layer is set, and the cover plate and the polarizer are bonded together through the adhesive layer. At the same time, the visual compensation layer set on the polarizer can also be flattened, thereby avoiding the problem that when the visual compensation layer is located on the side of the polarizer close to the display panel, the polarizer is uneven, affecting the display effect of the display module and the stability of the display module.

[0065] The above example takes the visual compensation layer being set on the polarizer as an example. The following will specifically introduce the specific film layer and specific shape of the visual compensation layer located on the display panel when the visual compensation layer is set in the display panel. The display panel may be a liquid crystal display panel or an organic light emitting diode display panel. In order to more conveniently and clearly describe the subsequent solutions, the display panel is an organic light emitting diode display panel as an example. The following contents do not limit the present application.

[0066] Optionally, the display panel includes at least one metal layer; the signal routing and the visual compensation layer are located on the same metal layer.

[0067] For example, Fig.13 is a top view structural diagram of another display module provided by an embodiment of the present invention, Fig.14 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention, Fig.15 FIG. 1 is a schematic diagram of a partial film structure of a display module provided by an embodiment of the present invention. Fig.13 , Fig.14 and Fig.15As shown, the display panel 10 provided in the embodiment of the present invention may include a first metal layer M1, a second metal layer M2, a third metal layer M3 and an insulating layer arranged between the metal layers. The display panel 10 also includes a base substrate 11, a driving circuit 12 and an organic light-emitting unit 13 which are stacked in sequence, and also includes a touch electrode 14 located on the side of the organic light-emitting unit 13 away from the driving circuit 12. Among them, the signal wiring 20 of this embodiment is a touch wiring. The first metal layer M1 includes a gate 121 and a scan line of the driving circuit 12 (not shown in the figure); the second metal layer M2 includes a first electrode 122, a second electrode 123 and a data line (not shown in the figure) of the driving circuit 12, wherein the first electrode 122 is a source electrode and the second electrode 123 is a drain electrode, or the first electrode 122 is a drain electrode and the second electrode 123 is a source electrode; the third metal layer M3 includes a touch electrode 14, a touch wiring and a visual compensation layer 60. When the visual compensation layer 60 is arranged in the same layer as the touch wiring, the shape of the visual compensation layer 60 may be, for example, a gourd shape (such as Fig.14 ), at this time, only a portion of the visual compensation layer 60 is exposed, and the exposed portion is the second portion 61. In addition, since the vertical projection of the first portion 21 on the plane where the cover plate 30 is located does not overlap with the vertical projection of the second portion 61 on the plane where the cover plate 30 is located, at this time, the portion of the non-display area BB of the display module 100 that is exposed and can reflect and / or absorb ambient light is the first portion 21 and the second portion 61. Furthermore, since the material of the visual compensation layer 60 and the touch line are prepared in the same steps and with the same material, the reflection and absorption of the external ambient light by the exposed second section 61 of the visual compensation layer 60 and the exposed first section 21 of the touch line are the same, so that the reflection and / or absorption of the external light around the light shielding layer 50 tends to be consistent. In this way, the problem in the prior art that only the first section 21 is exposed, resulting in a visual difference between the area where the first section 21 is exposed and the area where the signal line is not set, affecting the display uniformity, is avoided. At the same time, the visual compensation layer 60 can be prepared at the same time as the touch line is prepared, without setting the visual compensation layer 60 separately, thereby simplifying the process steps and improving the preparation efficiency of the display module 100.

[0068] For example, Fig.16 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention, such as Fig.16 As shown, Fig.14 The difference is, Fig.16Only a part of the visual compensation layer 60 is provided. That is, the visual compensation layer 60 provided in this embodiment is the exposed second subdivision 61. Similarly, since the vertical projection of the first subdivision 21 on the plane where the cover plate 30 is located does not overlap with the vertical projection of the second subdivision 61 on the plane where the cover plate 30 is located, the exposed part of the non-display area BB of the display module 100 that can reflect and / or absorb ambient light is the first subdivision 21 and the second subdivision 61. And since the material of the visual compensation layer 60 and the touch wiring are prepared in the same step and the same material, the reflection and absorption of the external ambient light by the exposed second subdivision 61 of the visual compensation layer 60 and the exposed first subdivision 21 of the touch wiring are the same, so that the reflection and / or absorption of the external light around the light shielding layer 50 tends to be consistent.

[0069] It should be noted that Fig.13 , Fig.14 , Fig.15 and Fig.16 The signal line 20 is a touch line, and the visual compensation layer 60 is set on the same layer as the touch line as an example, but it does not constitute a limitation of the present application. In other optional embodiments, the signal line 20 can also be a scan line, and the first metal layer M1 includes the scan line and the visual compensation layer 60; or, the signal line 20 is a data line, and the second metal layer M2 includes the data line and the visual compensation layer 60, etc.

[0070] It should also be noted that Fig.15 The touch control electrode is provided separately as an example, but it does not constitute a limitation to the present application. In other optional embodiments, the touch control electrode can also be provided in the same layer as the cathode in the organic light emitting unit 13, that is, the cathode is reused as the touch control electrode.

[0071] Those skilled in the art will appreciate that in order to clearly illustrate the shape of the visual compensation layer 60, Fig.14 and Fig.16 Only the visual compensation layer 60 and the signal wiring 20 are simply shown, but in practice the organic light emitting diode display panel also includes other signal lines and devices, etc., which are not shown here.

[0072] Optionally, the display panel includes at least two metal layers; the signal wiring and the visual compensation layer are located in different metal layers.

[0073] For example, Fig.17 is a top view structural diagram of another display module provided by an embodiment of the present invention, Fig.18 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention, Fig.19 FIG. 1 is a schematic diagram of a partial film structure of a display module provided by an embodiment of the present invention. Fig.17 , Fig.18 and Fig.19As shown, the display panel 10 provided in the embodiment of the present invention may include a first metal layer M1, a second metal layer M2, a third metal layer M3 and an insulating layer arranged between the metal layers. The display panel 10 also includes a base substrate 11, a driving circuit 12 and an organic light-emitting unit 13 which are stacked in sequence, and also includes a touch electrode 14 located on the side of the organic light-emitting unit 13 away from the driving circuit 12. Among them, the signal wiring 20 of this embodiment is a data line. The first metal layer M1 includes a gate 121 and a scan line (not shown in the figure) of the driving circuit 12; the second metal layer M2 includes a first electrode 122, a second electrode 123 and a data line of the driving circuit 12, wherein the first electrode 122 is a source electrode and the second electrode 123 is a drain electrode, or the first electrode 122 is a drain electrode and the second electrode 123 is a source electrode; the third metal layer M3 includes a touch electrode 14 and a visual compensation layer 60. When the visual compensation layer 60 is arranged in the same layer as the touch electrode 14, the shape of the visual compensation layer 60 may be, for example, a gourd shape (such as Fig.18 ), and because the vertical projection of the first sub-section 21 on the plane where the cover plate 30 is located does not overlap with the vertical projection of the second sub-section 61 on the plane where the cover plate 30 is located, the exposed part of the non-display area BB of the display module 100 that can reflect and / or absorb ambient light is the first sub-section 21 and the second sub-section 61. And because the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the first sub-section 21 on the plane where the cover plate 30 is located and the vertical projection of the second sub-section 61 on the plane where the cover plate 30 is located, that is, the exposed first sub-section 21 and the second sub-section 61 surround the light shielding layer 50, so that the reflection and / or absorption of the external light around the light shielding layer 50 tends to be consistent; at the same time, when preparing the touch wiring, the visual compensation layer 60 can be prepared at the same time, without setting the visual compensation layer 60 separately, simplifying the process steps and improving the preparation efficiency of the display module 100.

[0074] For example, Fig. 20 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention, such as Fig. 20 As shown, Fig.18 The difference is, Fig. 20Only a part of the visual compensation layer 60 is provided. That is, the visual compensation layer 60 provided in this embodiment is the exposed second sub-portion 61. Similarly, since the vertical projection of the first sub-portion 21 on the plane where the cover plate 30 is located does not overlap with the vertical projection of the second sub-portion 61 on the plane where the cover plate 30 is located, the exposed part of the non-display area BB of the display module 100 that can reflect and / or absorb ambient light is the first sub-portion 21 and the second sub-portion 61. And since the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the first sub-portion 21 on the plane where the cover plate 30 is located and the vertical projection of the second sub-portion 61 on the plane where the cover plate 30 is located, that is, the figure surrounded by the exposed first sub-portion 21 and the second sub-portion 61 surrounds the light shielding layer 50, so that the reflection and / or absorption of external light around the light shielding layer 50 tends to be consistent.

[0075] For example, Fig.21 is a schematic diagram of a partial film layer structure of another display module provided by an embodiment of the present invention, Fig. 22 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present invention, such as Fig.21 and Fig. 22 As shown, the shape profile of the visual compensation layer 60 is the same as the shape profile of the light shielding layer 50. The visual compensation layer 60 includes a second hollow portion BI, which corresponds to the high light transmittance area BD one by one, and the aperture of the second hollow portion BI is larger than the aperture of the first hollow portion BE. The setting of the second hollow portion BI ensures that the camera module set in the high light transmittance area BD works normally. At the same time, since the shape profile of the visual compensation layer 60 is the same as the shape profile of the light shielding layer 50, the process difficulty is reduced when preparing the visual compensation layer, and the preparation efficiency of the display module 100 is improved. The vertical projection of the first subsection 21 on the plane where the cover plate 30 is located is located within the vertical projection of the second subsection 61 on the plane where the cover plate 30 is located; the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the second subsection 61 on the plane where the cover plate 30 is located. That is, the exposed first subdivision 21 of the signal wiring 20 is shielded by the second subdivision 61 of the visual compensation layer 60, and only the second subdivision 61 of the visual compensation layer 60 is exposed, and the light shielding layer 50 is located in the surrounding area of ​​the second subdivision 61. Since the light shielding layer 50 is surrounded by only the second subdivision 61, the second subdivision 61 reflects and absorbs the external light in the same manner, so that the reflection and / or absorption of the external light by the light shielding layer 50 is consistent, thus avoiding the problem in the prior art that only the first subdivision 21 is exposed, resulting in a visual difference between the area where the first subdivision 21 is exposed and the area where the signal wiring is not set, which affects the display uniformity.

[0076] For example, Fig.23 is a schematic diagram of a top view structure of another polarizer provided by an embodiment of the present invention, such as Fig.23As shown, Fig. 22 The difference is, Fig.23 Only a part of the visual compensation layer 60 is provided. That is, the visual compensation layer 60 provided in this embodiment is the exposed second sub-portion 61. Similarly, at this time, the part of the non-display area BB of the display module 100 that is exposed and can reflect and absorb ambient light is the second part 61, and the vertical projection of the light shielding layer 50 on the plane where the cover plate 30 is located is located in the surrounding area of ​​the vertical projection of the second sub-portion 61 on the plane where the cover plate 30 is located, that is, the pattern surrounded by the exposed second part 61 surrounds the light shielding layer 50, so that the reflection and / or absorption of external light around the light shielding layer 50 tends to be consistent.

[0077] It should be noted that Figure 17-Figure 23 The signal trace 20 is used as a data line, and the visual compensation layer 60 is set on the same layer as the touch electrode 14 as an example, but it does not constitute a limitation to the present application. Those skilled in the art can set the position and shape of the visual compensation layer 60 according to product requirements.

[0078] It should also be noted that Fig.19 and Fig.21 The touch control electrode is provided separately as an example, but it does not constitute a limitation to the present application. In other optional embodiments, the touch control electrode can also be provided in the same layer as the cathode in the organic light emitting unit 13, that is, the cathode is reused as the touch control electrode.

[0079] Those skilled in the art will appreciate that in order to clearly illustrate the shape of the visual compensation layer 60, Fig.18 and Fig. 20 Only the visual compensation layer 60 and the signal trace 20 are shown briefly. Fig. 22 and Fig.23 Only the visual compensation layer 60 is shown briefly. However, in practice, the organic light emitting diode display panel also includes other signal lines and devices, which are not shown here.

[0080] On the basis of the above solution, when the vertical projection of the first sub-part on the plane where the cover plate is located does not overlap with the vertical projection of the second sub-part on the plane where the cover plate is located, optionally, continue to refer to Figure 5 , Fig.13 and Fig.17 , along the first direction, the width H3 of the first sub-portion 21 is the same as the width H2 of the second sub-portion 61; wherein the first direction is perpendicular to the connecting line of the centers of the two adjacent high light transmittance areas BD. When the width H3 of the first sub-portion 21 is the same as the width H2 of the second sub-portion 61, the first sub-portion 21 and the second sub-portion 61 have the same absorption and reflection of the external ambient light, thus further reducing the visual difference caused by the different absorption and reflection of the external ambient light by the area where the first sub-portion 21 is exposed and the area where the signal wiring is not set.

[0081] In addition, the high-transmittance area BD can be either a through hole that runs through the entire display module in the thickness direction; or it can be a blind hole that runs through part of the film layer, that is, without affecting the function of the device installed inside it, for example, when a camera is installed in the high-transmittance area BD, in order to meet the requirements for the transmittance of the high-transmittance area BD during the operation of the camera, only the colored film layer or the film layer that has a greater impact on the transmittance is removed, and the transparent film layer is not removed or only part of the transparent film layer is retained. The present invention does not impose specific restrictions on this.

[0082] Based on the same inventive concept, an embodiment of the present invention further provides a display device. The display device includes the display panel described in any embodiment of the present invention. Therefore, the display device provided by the embodiment of the present invention has the corresponding beneficial effects of the display panel provided by the embodiment of the present invention, which will not be repeated here. Exemplarily, the display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and a vehicle-mounted display device, which is not limited by the embodiment of the present invention.

[0083] For example, Fig.24 Schematic diagram of a display device provided by an embodiment of the present invention. Fig.24 As shown, the display device 200 includes the display module 100 in the above embodiment. Among them, the high light transmittance area in the display module 100 is correspondingly provided with a camera.

[0084] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display module, characterized in that: include: Display area and non-display area; The display area surrounds the non-display area; The non-display area includes at least two high light transmittance areas and a wiring area surrounding the high light transmittance areas; Also included: a display panel; A cover plate, located on one side of the display panel; A light shielding layer is located on a side of the cover plate close to the display panel; wherein the light shielding layer includes at least two first hollow portions; and the first hollow portions correspond to the high light transmittance areas one by one; A signal routing line is located in the wiring area; A visual compensation layer, located in the wiring area; The vertical projection of the light shielding layer on the plane where the cover plate is located does not overlap with the vertical projection of the signal line on the plane where the cover plate is located, and the vertical projection of the light shielding layer on the plane where the cover plate is located does not overlap with the vertical projection of the visual compensation layer on the plane where the cover plate is located; The portion where the vertical projection of the signal line on the plane where the cover plate is located does not overlap with the vertical projection of the light shielding layer on the plane where the cover plate is located is the first subdivision, and the portion where the vertical projection of the visual compensation layer on the plane where the cover plate is located does not overlap with the vertical projection of the light shielding layer on the plane where the cover plate is located is the second subdivision; The vertical projection of the light shielding layer on the plane where the cover plate is located is located in the surrounding area of ​​the vertical projection of the first section on the plane where the cover plate is located and the vertical projection of the second section on the plane where the cover plate is located.

2. The display module according to claim 1, characterized in that: The reflectivity of the visual compensation layer is A, the reflectivity of the signal wiring is B, and 0<|AB| / B≤50%.

3. The display module according to claim 1, characterized in that: The visual compensation layer is located on a side of the signal wiring close to the cover plate; the vertical projection of the first sub-section on the plane where the cover plate is located is located within the vertical projection of the second sub-section on the plane where the cover plate is located; The vertical projection of the light shielding layer on the plane where the cover plate is located is located in the surrounding area of ​​the vertical projection of the second section on the plane where the cover plate is located.

4. The display module according to claim 1, characterized in that: A vertical projection of the first section on the plane where the cover plate is located does not overlap with a vertical projection of the second section on the plane where the cover plate is located.

5. The display module according to claim 4, characterized in that: Along a first direction, the width of the first section is the same as the width of the second section; The first direction is perpendicular to a connecting line between centers of two adjacent high light transmittance areas.

6. The display module according to any one of claims 1 to 5, characterized in that: Also included is a polarizer, disposed between the cover plate and the display panel; The visual compensation layer is arranged on the polarizer.

7. The display module according to claim 6, characterized in that: The visual compensation layer is located on a side of the polarizer away from the display panel.

8. The display module according to any one of claims 1-2 or 4-5, characterized in that: The display panel includes at least one metal layer; the signal wiring and the visual compensation layer are located in the same metal layer.

9. The display module according to any one of claims 1 to 5, characterized in that: The display panel includes at least two metal layers; the signal wiring and the visual compensation layer are located in different metal layers respectively.

10. The display module according to any one of claims 1, characterized in that: The material of the visual compensation layer is the same as that of the signal trace; or, The material of the visual compensation layer includes a mixture of carbon black powder and antistatic liquid or a metal ink material.

11. The display module according to any one of claims 1, characterized in that: A sub-pixel is also arranged in the area between two adjacent light-transmitting areas.

12. The display module according to any one of claims 1, characterized in that: The signal line includes one or more of a touch line, a data line, and a scan line.

13. The display module according to any one of claims 1, characterized in that: The visual compensation layer includes a second hollow portion, the second hollow portion corresponds to the high light transmittance area one by one, and the aperture of the second hollow portion is larger than the aperture of the first hollow portion.

14. A display device, characterized in that: Comprising a display module as described in any one of claims 1-13.

15. The display device according to claim 14, characterized in that: A camera is correspondingly arranged in the high light transmittance area.

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