Display panel and display device

Abstract

This application discloses a display panel and a display device. The display panel includes a blind hole area and a display area surrounding the blind hole area. The display panel also includes a substrate, a cover plate, and a light-transmitting support structure. The light-transmitting support structure is located on the substrate and is at least partially located between the substrate and the cover plate in the blind hole area. Compared to the case where only a cover plate and a substrate are provided, the distance between the light-transmitting support structure and the cover plate in the blind hole area is smaller. When the cover plate deforms, the light-transmitting support structure can provide a certain amount of support, thereby reducing the concavity of the cover plate.

Description

Technical Field

[0001] This application belongs to the field of display equipment technology, and particularly relates to display panels and display devices. Background Technology

[0002] Currently, as the functional requirements of display devices gradually increase, some display devices employ the method of setting blind holes, embedding optical components under the display panel to achieve certain functions. For example, some display devices implement facial recognition by adding cameras, while others implement power-off functionality by adding infrared detection devices. However, the cover plate at the blind hole location is prone to concavity, which can lead to different optical path differences at the blind hole location, thus potentially causing the camera to lose focus. Utility Model Content

[0003] The purpose of this application is to provide a display panel and display device that aims to solve the problem of camera inability to focus caused by the different optical path differences at the blind hole positions due to the recessed blind hole in traditional solutions.

[0004] A first aspect of this application provides a display panel, the display panel including a blind hole area and a display area surrounding the blind hole area, the display panel further including: a substrate, a cover plate and a light-transmitting support structure; The light-transmitting support structure is located on the substrate and is at least partially located between the substrate and the cover plate in the blind hole area.

[0005] In one embodiment, the light-transmitting support structure includes a first light-transmitting insulating layer, a color resist layer, and a second light-transmitting insulating layer; The first light-transmitting insulating layer, the color resist layer, and the second light-transmitting insulating layer are sequentially stacked on the substrate in a direction away from the substrate.

[0006] In one embodiment, the color resist layer includes a red color resist layer.

[0007] In one embodiment, the light-transmitting support structure further includes at least one first support column; The first end of the first support column is fixed to the surface of the cover plate near the substrate, and the second end of the first support column is fixed to the second light-transmitting insulating layer. The first support column is perpendicular to the cover plate.

[0008] In one embodiment, the display panel further includes a pixel structure layer; The pixel structure layer is disposed on the side surface of the substrate near the cover plate; The sum of the thicknesses of the first light-transmitting insulating layer, the color resist layer, and the second light-transmitting insulating layer is equal to the thickness of the pixel structure layer.

[0009] In one embodiment, the light-transmitting support structure includes a metal wiring layer and at least one second support column; The metal trace layer is disposed on the side surface of the substrate near the cover plate; The first end of the second support column is fixed to the surface of the cover plate near the substrate, and the second end of the second support column is fixed to the metal trace layer. The second support column is perpendicular to the cover plate.

[0010] In one embodiment, the metal trace layer includes a plurality of first metal traces and a plurality of second metal traces; Each of the first metal traces is disposed on the side surface of the substrate near the cover plate and extends along a first direction parallel to the substrate. Each of the first metal traces is arranged at intervals along a second direction parallel to the substrate. Each of the second metal traces is disposed on the first metal trace and extends along the second direction, with each of the second metal traces being arranged at intervals along the first direction.

[0011] In one embodiment, the display panel further includes a light-transmitting plate, which is attached to the surface of the cover plate away from the substrate, and the light-transmitting plate covers the blind hole area.

[0012] A second aspect of this application provides a display device, including the display panel as described above.

[0013] In one embodiment, the display device further includes an optical element fixed to the side of the substrate of the display panel away from the cover plate of the display panel. The optical element is used to obtain light from the side of the cover plate away from the substrate through a light transmission path located in the blind hole area of ​​the display panel.

[0014] The beneficial effects of this application embodiment compared with the prior art are: compared with the case of only having a cover plate and a substrate, the distance between the light-transmitting support structure set in the blind hole area and the cover plate is smaller. When the cover plate deforms, the light-transmitting support structure can provide a certain support, thereby reducing the concavity of the cover plate.

[0015] The first light-transmitting insulating layer, the color resist layer, and the second light-transmitting insulating layer can be constructed by laying out insulating materials and color filter materials while constructing the pixel structure layer, thus completing the construction of the light-transmitting support structure without adding any additional process steps, thereby forming the light-transmitting support structure at a lower manufacturing cost. Attached Figure Description

[0016] Figure 1A cross-sectional schematic diagram of a display panel provided in an embodiment of this application; Figure 2 This is another cross-sectional schematic diagram of a display panel provided in one embodiment of this application; Figure 3 Another cross-sectional schematic diagram of a display panel provided in an embodiment of this application; Figure 4 A top view of a first support column provided in an embodiment of this application; Figure 5 Another cross-sectional schematic diagram of a display panel provided in an embodiment of this application; Figure 6 This is a top view of a metal trace layer provided in an embodiment of this application; Figure 7 A schematic diagram of a display device provided in an embodiment of this application; Figure 8 This is a cross-sectional schematic diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In existing technologies, the film layer stacking at the blind aperture location of a display panel differs significantly from that in the display area. The display area has a large number of film layers and is supported by support pillars, while the blind aperture location lacks corresponding support, resulting in a higher risk of deformation of the cover glass at the blind aperture location. When the cover glass becomes concave, it will affect the operation of the optical devices that obtain light through the blind aperture, thus affecting the focusing of the optical devices.

[0022] Figure 1 A schematic diagram of a display panel according to an embodiment of this application is shown. For ease of explanation, only the parts relevant to this embodiment are shown, and the details are as follows: A display panel 10 includes a blind hole area 20 and a display area 30 surrounding the blind hole area 20.

[0023] It is understandable that, compared to the blind aperture area 20, the display area 30 of the display panel 10 includes a pixel structure layer 100.

[0024] The pixel structure layer 100 is disposed on the side surface of the substrate 300 near the cover plate 400.

[0025] When the display panel 10 is a liquid crystal panel, the pixel structure layer 100 may specifically include structures such as thin film transistors and light filter layers, which can be used to transmit driving electrical signals and filter light.

[0026] Meanwhile, the display area 30 of the display panel 10 also includes a polarizer 200, all of which are located within the display area 30.

[0027] Specifically, during the fabrication of the display panel 10, a polarizing film covering the blind hole area and the display area can be constructed first, and then the polarizing film of the blind hole area 20 can be hollowed out to obtain a light-transmitting blind hole.

[0028] The display panel 10 also includes: a substrate 300, a cover plate 400, and a light-transmitting support structure 500.

[0029] The light-transmitting support structure 500 is fixed on the substrate 300 and is at least partially located between the substrate 300 and the cover plate 400 in the blind hole area 20.

[0030] Compared to the case where only a cover plate 400 and a substrate 300 are provided, the distance between the light-transmitting support structure 500 provided in the blind hole area 20 and the cover plate 400 is smaller. When the cover plate 400 deforms, the light-transmitting support structure 500 can provide some support for the cover plate 400, reduce the deformation range of the cover plate 400, and thus reduce the concavity of the cover plate 400.

[0031] It should be noted that when the display panel 10 is a liquid crystal panel, liquid crystal material is also filled between the substrate 300 and the cover plate 400.

[0032] In some embodiments, the materials of the substrate 300 and the cover plate 400 may specifically include light-transmitting materials such as glass and resin, and this embodiment does not limit them.

[0033] In one embodiment, such as Figure 2 As shown, the light-transmitting support structure 500 includes a first light-transmitting insulating layer 510, a color resist layer 520, and a second light-transmitting insulating layer 530.

[0034] The first light-transmitting insulating layer 510, the color resist layer 520, and the second light-transmitting insulating layer 530 are sequentially stacked on the substrate 300 in a direction away from the substrate 300.

[0035] It should be noted that during the construction of the pixel structure layer 100 of the LCD panel, insulating materials are usually used to form corresponding insulating structures to cover and isolate the semiconductor structures and conductive traces in the pixel structure layer 100. At the same time, color filter materials are also used to form color group structures for filtering.

[0036] In this embodiment, the first light-transmitting insulating layer 510, the color resist layer 520, and the second light-transmitting insulating layer 530 can be laid flat using insulating materials and color filter materials while constructing the pixel structure layer 100, thus completing the construction of the light-transmitting support structure 500. The light-transmitting support structure 500 can be formed with minimal manufacturing cost without adding additional process steps.

[0037] By constructing a light-transmitting support structure 500, the distance between the cover plate 400 and the second light-transmitting insulating layer 530 can be reduced to 3μm~4μm, which is close to the distance between the cover plate 400 and the pixel structure layer 100 in the display area 30. When the cover plate 400 deforms, the degree of deformation of the display area 30 and the blind hole area 20 is similar, thereby preventing the cover plate 400 of the blind hole area 20 from being recessed.

[0038] In one embodiment, the color resist layer 520 includes a red color resist layer.

[0039] In the case where only infrared light needs to pass through the blind aperture region 20, the commonly used infrared sensors typically use infrared light with a wavelength of 850nm for infrared identification, and the red color resist layer has sufficient transmittance for infrared light of this wavelength to meet the requirements.

[0040] In one embodiment, such as Figure 3 , Figure 4 As shown, the light-transmitting support structure 500 also includes at least one first support column 540.

[0041] The first end of the first support column 540 is fixed to the surface of the cover plate 400 near the substrate 300, and the second end of the first support column 540 is fixed to the second light-transmitting insulating layer 530.

[0042] The first support column 540 is perpendicular to the cover plate 400.

[0043] The addition of the first support column 540 can further strengthen the support for the cover plate 400 and reduce the sagging of the cover plate 400.

[0044] The specific number and cross-sectional shape of the first support column 540 can be set according to actual needs, and this embodiment does not limit them.

[0045] In some embodiments, a plurality of first support columns 540 are arranged in a certain matrix. By reasonably configuring the diameter of the first support columns 540 and the spacing between the first support columns 540, the cover plate 400 can be supported without the first support columns 540 affecting the overall light transmittance of the blind hole area 20.

[0046] In one embodiment, the sum of the thicknesses of the first light-transmitting insulating layer 510, the color resist layer 520, and the second light-transmitting insulating layer 530 is equal to the thickness of the pixel structure layer 100.

[0047] When the cover plate 400 deforms, the deformation degree of the display area 30 and the blind hole area 20 is similar, thereby preventing the cover plate 400 of the blind hole area 20 from being recessed.

[0048] In one embodiment, such as Figure 5 , Figure 6 As shown, the light-transmitting support structure 500 includes a first light-transmitting insulating layer 510, a metal wiring layer 550, and at least one second support column 560.

[0049] The first light-transmitting insulating layer 510 and the metal trace layer 550 are sequentially stacked on the side surface of the substrate 300 near the cover plate 400 in a direction away from the substrate 300.

[0050] The first end of the second support post 560 is fixed to the surface of the cover plate 400 near the substrate 300, and the second end of the second support post 560 is fixed to the metal trace layer 550.

[0051] The second support column 560 is perpendicular to the cover plate 400.

[0052] The specific number and cross-sectional shape of the second support column 560 can be set according to actual needs, and this embodiment does not limit them.

[0053] The first light-transmitting insulating layer 510 and the metal wiring layer 550 can serve as the mounting platform for the second support column 560. The second support column 560 can support the cover plate 400 and prevent the cover plate 400 from sinking.

[0054] In one embodiment, the metal trace layer 550 includes a plurality of first metal traces 551 and a plurality of second metal traces 552.

[0055] Each first metal trace 551 is disposed on the surface of the substrate 300 near the cover plate 400, and extends along a first direction parallel to the substrate 300. The first metal traces 551 are arranged sequentially at intervals along a second direction parallel to the substrate 300. The first direction and the second direction intersect.

[0056] Each second metal trace 552 is disposed on the first metal trace 551 and extends along the second direction. Each second metal trace 552 is arranged sequentially at intervals along the first direction.

[0057] The first metal trace 551 and the second metal trace 552 can be arranged in the form of a light filter grid to meet the light transmission requirements of the blind hole area 20.

[0058] In some embodiments, the first direction is perpendicular to the second direction.

[0059] In some embodiments, the second support post 560 can be fixed to the overlapping portion of the first metal trace 551 and the second metal trace 552 to ensure the support strength of the second support post 560.

[0060] In one embodiment, such as Figure 2 As shown, the display panel 10 also includes a reinforcing light-transmitting plate 600, which is attached to the side of the cover plate 400 away from the substrate 300 and covers the cover plate 400 of the blind hole area 20.

[0061] The reinforced light-transmitting plate 600 can further enhance the compressive strength of the cover plate 400 in the blind hole area 20 and reduce the dent of the cover plate 400.

[0062] Specifically, the reinforced light-transmitting panel 600 can be made of materials such as glass or resin. The reinforced light-transmitting panel 600 can be adhered to the cover plate 400 using UV-cured adhesive.

[0063] Figure 7 A schematic diagram of a display device according to an embodiment of this application is shown. For ease of explanation, only the parts relevant to this embodiment are shown, and the details are as follows: A display device 40 includes a display panel 10 as described in any of the above embodiments.

[0064] Since the display device 40 includes the display panel 10 of any of the above embodiments, the display device 40 has the beneficial effects of the display panel 10 of any of the above embodiments, which will not be repeated here.

[0065] In some embodiments, the display device 40 may specifically be a smart device such as a television, mobile phone, or computer.

[0066] In one embodiment, such as Figure 8 As shown, the display device 40 also includes an optical element 700, which is fixed on the side of the substrate 300 away from the cover plate 400. The optical element 700 is used to obtain light from the side of the cover plate 400 away from the substrate 300 through the light transmission path located in the blind hole area 20.

[0067] An optical device 700 disposed on one side of the substrate 300 can obtain light from the other side of the display panel 10 through the blind hole area 20 on the display panel 10, so as to realize the corresponding function of the optical device 700.

[0068] Specifically, the optical device 700 may include infrared sensors, cameras, etc.

[0069] From the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0070] It should be understood that the apparatuses and methods disclosed in the several embodiments provided in this application can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of modules or units is only a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components being combined or integrated into another device. In addition, some features may be omitted or not performed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms.

[0071] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units. That is, it can be located in one place or distributed in multiple different locations. Depending on the actual needs, some or all of the units can be selected to achieve the purpose of this solution.

[0072] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit; they can also exist physically separately; or some units can be integrated into one unit while others exist physically separately. The integrated units described above can be implemented in hardware or as software functional units.

[0073] It should be noted that all or part of the above embodiments provided in this application (e.g., part or all of any feature) can be arbitrarily combined or combined with each other.

[0074] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, characterized by, The display panel includes a blind hole area and a display area surrounding the blind hole area, and the display panel also includes: a substrate, a cover plate and a light-transmitting support structure; The light-transmitting support structure is located on the substrate and is at least partially located between the substrate and the cover plate in the blind hole area; The light-transmitting support structure includes a first light-transmitting insulating layer, a color resist layer, and a second light-transmitting insulating layer. The first light-transmitting insulating layer, the color resist layer, and the second light-transmitting insulating layer are sequentially stacked on the substrate in a direction away from the substrate.

2. The display panel as described in claim 1, characterized in that, The color resist layer includes a red color resist layer.

3. The display panel as described in claim 1, characterized in that, The light-transmitting support structure also includes at least one first support column; The first end of the first support column is fixed to the surface of the cover plate near the substrate, and the second end of the first support column is fixed to the second light-transmitting insulating layer. The first support column is perpendicular to the cover plate.

4. The display panel as described in claim 1, characterized in that, The display area includes a pixel structure layer; The pixel structure layer is disposed on the side surface of the substrate near the cover plate; The sum of the thicknesses of the first light-transmitting insulating layer, the color resist layer, and the second light-transmitting insulating layer is equal to the thickness of the pixel structure layer.

5. The display panel as described in claim 1, characterized in that, The light-transmitting support structure includes a first light-transmitting insulating layer, a metal wiring layer, and at least one second support column; The first light-transmitting insulating layer and the metal trace layer are sequentially stacked on the surface of the substrate near the cover plate in a direction away from the substrate. The first end of the second support column is fixed to the surface of the cover plate near the substrate, and the second end of the second support column is fixed to the metal trace layer. The second support column is perpendicular to the cover plate.

6. The display panel as described in claim 5, characterized in that, The metal trace layer includes a plurality of first metal traces and a plurality of second metal traces; Each of the first metal traces is disposed on the side surface of the substrate near the cover plate and extends along a first direction parallel to the substrate. Each of the first metal traces is arranged at intervals along a second direction parallel to the substrate; wherein the first direction and the second direction intersect. Each of the second metal traces is disposed on the first metal trace and extends along the second direction, with each of the second metal traces being arranged at intervals along the first direction.

7. The display panel as described in any one of claims 1 to 6, characterized in that, The display panel also includes a light-reinforcing plate, which is attached to the surface of the cover plate away from the substrate and covers the cover plate of the blind hole area.

8. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 7.

9. The display device as claimed in claim 8, characterized in that, The display device further includes an optical element fixed to the side of the substrate of the display panel away from the cover plate of the display panel. The optical element is used to obtain light from the side of the cover plate away from the substrate through the light transmission path located in the blind hole area of ​​the display panel.

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