Display device

Abstract

The application relates to a display device. The display device comprises a display panel, an optical assembly, an upper polarizing plate, a first optical adhesive layer, a first transparent adhesive layer, a first hardening layer and a soft transparent film. The display panel has a light transmission area. The optical assembly is located below the display panel and overlaps the light transmission area of the display panel in the vertical direction. The upper polarizing plate is located above the display panel. The first optical adhesive layer is located on the upper polarizing plate. The first transparent adhesive layer is located in the upper polarizing plate and the first optical adhesive layer, and the first transparent adhesive layer overlaps the light transmission area of the display panel in the vertical direction. The first hardening layer is located on the first optical adhesive layer and the first transparent adhesive layer. The soft transparent film is located on the hardening layer and the first optical adhesive layer. Such a display device can reduce the area occupied by the optical assembly, and is beneficial to the design of narrow frame, lightness and thinness and the like.

Description

Technical Field

[0001] This application relates to a display device. Background Technology

[0002] In modern electronic devices, optical components (such as camera lenses) are often mounted near the display device. For example, the front camera of mobile devices like smartphones and laptops is typically mounted on the screen bezel. This hinders the design of narrow bezels and the pursuit of thinness in mobile devices because the placement of the optical components limits the display area. For instance, mounting the front camera of a mobile device like a smartphone within the screen bezel requires the bezel to occupy a certain area to accommodate the lens, image sensor, and other related components, thus limiting the screen size. Summary of the Invention

[0003] Therefore, it is necessary to provide a display device that addresses the problem of mounting optical components (such as camera lenses) in a position adjacent to the display device, which is detrimental to the narrow bezel design and thinness of mobile devices.

[0004] This application provides a display device, including:

[0005] The display panel has a light-transmitting area;

[0006] An optical component is located below the display panel and overlaps with the light-transmitting area of ​​the display panel in the vertical direction;

[0007] The upper polarizing plate is located above the display panel;

[0008] The first optical adhesive layer is located on the upper polarizing plate;

[0009] A first transparent adhesive layer is located between the upper polarizing plate and the first optical adhesive layer, wherein the first transparent adhesive layer overlaps with the light-transmitting area of ​​the display panel in the vertical direction;

[0010] A first hardening layer is located on the first optical adhesive layer and the first transparent adhesive layer, wherein the top surface of the first hardening layer is planar, and the first hardening layer is formed directly on the first optical adhesive layer and the first transparent adhesive layer, such that the bottom surface of the first hardening layer contacts the first optical adhesive layer and the first transparent adhesive layer; and

[0011] A soft, transparent film is located on the first hardened layer and the first optical adhesive layer.

[0012] In some embodiments, the display panel includes:

[0013] lower base plate;

[0014] The second transparent adhesive layer is located on the lower substrate and overlaps with the first transparent adhesive layer in the vertical direction;

[0015] A liquid crystal layer is located on the lower substrate;

[0016] A sealant layer is located between the second transparent adhesive layer and the liquid crystal layer;

[0017] A first light-shielding layer is located on the liquid crystal layer, the second transparent adhesive layer, and the sealant layer, and has an opening, wherein the opening of the first light-shielding layer overlaps with the optical component in the vertical direction, and the opening defines the light-transmitting area of ​​the display panel; and

[0018] The upper substrate is located on the first light-shielding layer.

[0019] In some embodiments, a second light-shielding layer is located between the first hardened layer and the soft transparent film, and has an opening, wherein the opening of the second light-shielding layer overlaps with the opening of the first light-shielding layer in the vertical direction.

[0020] In some embodiments, the opening of the second light-shielding layer is larger than the opening of the first light-shielding layer.

[0021] In some embodiments, the width of the second transparent adhesive layer is more than 2 millimeters greater than the width of the first transparent adhesive layer.

[0022] In some embodiments, a second hardened layer is located on the soft transparent film.

[0023] In some embodiments, the lower polarizer is located below the display panel; and

[0024] The second optical adhesive layer is located between the display panel and the upper polarizing plate.

[0025] In some embodiments, an adhesion layer is located between the optical component and the display panel, wherein the material of the adhesion layer includes transparent adhesive and infrared ink.

[0026] In some embodiments, the width of the first hardened layer is at least 3 millimeters greater than the width of the first transparent adhesive layer.

[0027] In some embodiments, the optical components include a camera, an infrared camera, and a time-of-flight camera.

[0028] In the technical solution of this application, since the optical components are located at the bottom of the display panel, the area occupied by the optical components can be reduced, which is beneficial for designs such as narrow bezels and thinness. In addition, the light-transmitting area of ​​the display panel above the optical components and the first transparent adhesive layer can serve as a transparent protective mirror covering the optical components, thus serving both protective and decorative functions, without the need to add a glass cover or other structures to the optical components. Attached Figure Description

[0029] Figure 1 A cross-sectional view of a display device according to an embodiment of this application is shown.

[0030] Figure 2 A cross-sectional view of a display device according to another embodiment of this application is shown.

[0031] Figure 3 A cross-sectional view of a display device according to another embodiment of this application is shown.

[0032] Figure label:

[0033] Display devices 100, 100a, 100b

[0034] Display panel 110

[0035] Lower base plate 111

[0036] Second transparent adhesive layer 112

[0037] Liquid crystal layer 113

[0038] Sealant layer 114

[0039] First light-shielding layer 115

[0040] Upper base plate 116

[0041] Optical components 120

[0042] Adhesion layer 122

[0043] Upper polarizing plate 130

[0044] Lower polarizing plate 132

[0045] First optical adhesive layer 140

[0046] Second optical adhesive layer 142

[0047] First transparent adhesive layer 150

[0048] First hardened layer 160

[0049] Second hardening layer 162

[0050] Soft transparent film 170

[0051] Second light-shielding layer 180

[0052] Openings 01, 02

[0053] Transparent area T. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0056] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0060] First, it is necessary to explain the technical content of the comparative examples in this application and the problems faced by the comparative examples.

[0061] Please refer to Figure 1 , Figure 1A cross-sectional view of a display device 100 according to an embodiment of this application is shown. The display device 100 includes a display panel 110, an optical component 120, an upper polarizing plate 130, a first optical adhesive layer 140, a first transparent adhesive layer 150, a first hardened layer 160, and a flexible transparent film 170. The display panel 110 has a light-transmitting area T. The optical component 120 is located below the display panel 110 and overlaps with the light-transmitting area T of the display panel 110 in the vertical direction. The optical component 120 may be a camera, an infrared camera, or a time-of-flight camera, and is not intended to limit this application. The upper polarizing plate 130 is located on the display panel 110. The first optical adhesive layer 140 is located on the upper polarizing plate 130. The first transparent adhesive layer 150 is located between the upper polarizing plate 130 and the first optical adhesive layer 140, wherein the first transparent adhesive layer 150 overlaps with the light-transmitting area T of the display panel 110 in the vertical direction. In this embodiment, the first transparent adhesive layer 150 is slightly wider than the light-transmitting area T. The first hardened layer 160 is located on the first optical adhesive layer 140 and the first transparent adhesive layer 150, wherein the top surface of the first hardened layer 160 is planar, and the first hardened layer 160 is directly formed on the first optical adhesive layer 140 and the first transparent adhesive layer 150, so that the bottom surface of the first hardened layer 160 directly contacts the first optical adhesive layer 140 and the first transparent adhesive layer 150. A flexible transparent film 170 is located on the first hardened layer 160 and the first optical adhesive layer 140. The flexible transparent film 170 may have surface treatments such as low reflection (LR), anti-reflection (AR), anti-glare (AF), anti-fogging (AG), and hardening.

[0062] In this embodiment, the first transparent adhesive layer 150 is formed by glue dispensing, and the first hardened layer 160 can be formed by processes such as spraying, impregnation, roller coating, vapor deposition, or sputtering. The material of the first hardened layer 160 includes polymers such as silica, polyacrylates, organic solvents (ketones), esters, and alcohols. Because the first transparent adhesive layer 150 is formed by glue dispensing, the glue dispensing amount may be difficult to control, resulting in unevenness in the first transparent adhesive layer 150. For example, the bottom surface of the first transparent adhesive layer 150 may be concave or convex. The first hardened layer 160 prevents the flexible transparent film 170 from being affected by the unevenness formed by the first transparent adhesive layer 150 during the glue dispensing process, thereby improving the flatness of the display device 100 and increasing the deformation resistance of the flexible transparent film 170.

[0063] In this embodiment, the display device 100 further includes a lower polarizer 132 and a second optical adhesive layer 142. The lower polarizer 132 is located below the display panel 110. The second optical adhesive layer 142 is located between the display panel 110 and the upper polarizer 130, that is, the upper polarizer 130 is located between the first optical adhesive layer 140 and the second optical adhesive layer 142. The first optical adhesive layer 140 and the second optical adhesive layer 142 can be formed by attaching optical film.

[0064] In this embodiment, the display panel 110 includes a lower substrate 111, a second transparent adhesive layer 112, a liquid crystal layer 113, a sealant layer 114, a first light-shielding layer 115, and an upper substrate 116. The second transparent adhesive layer 112 is located on the lower substrate 111 and overlaps with the first transparent adhesive layer 150 in the vertical direction. The second transparent adhesive layer 112 may be slightly wider than the first transparent adhesive layer 150. The liquid crystal layer 113 is located on the lower substrate 111. The sealant layer 114 is located between the second transparent adhesive layer 112 and the liquid crystal layer 113. The first light-shielding layer 115 is located on the second transparent adhesive layer 112, the liquid crystal layer 113, and the sealant layer 114, and has an opening O1. The opening O1 overlaps with the optical component 120 in the vertical direction, and the opening O1 defines the light-transmitting area T of the display panel 110. That is, the optical component 120, the second transparent adhesive layer 112, the opening O1, and the first transparent adhesive layer 150 overlap in the vertical direction. In this embodiment, the first transparent adhesive layer 150, the second transparent adhesive layer 112, the first hardened layer 160, the optical component 120, and the sealant layer 114 are all located in the non-display area of ​​the display device 100.

[0065] In this embodiment, the display device 100 further includes an adhesion layer 122. The adhesion layer 122 is located between the optical component 120 and the lower substrate 111 of the display panel 110 (that is, between the optical component 120 and the lower substrate 111), wherein the material of the adhesion layer 122 includes transparent adhesive and infrared ink, etc.

[0066] In some embodiments, the width of the second transparent adhesive layer 112 is at least 2 mm wider than the width of the first transparent adhesive layer 150. In some embodiments, the width of the first transparent adhesive layer 150 is at least 0.5 mm wider than the width of the opening O1 of the first light-shielding layer 115. In some embodiments, the width of the first hardening layer 160 is at least 3 mm wider than the width of the first transparent adhesive layer 150.

[0067] In some embodiments, the first transparent adhesive layer 150, the second transparent adhesive layer 112, and the flexible transparent film 170 have a transmittance greater than 90% and a haze less than 1%. In one embodiment, the sealant layer 114 is transparent. In another embodiment, the sealant layer 114 is opaque.

[0068] In the aforementioned display device 100, since the optical component 120 is located at the bottom of the display panel 110, the area occupied by the optical component 120 in the electronic device on which the display device 100 is installed can be reduced, which is beneficial for designs such as narrow bezels and thinness. In addition, the light-transmitting area T and the first transparent adhesive layer 150 of the display panel 110 located above the optical component 120 can serve as a transparent protective lens covering the optical component 120, thus integrating the functions of protecting the optical component 120 and decoration, without the need to add a glass cover or other structures to the optical component 120.

[0069] Please refer to Figure 2 , Figure 2 A cross-sectional view of a display device 100a according to another embodiment of this application is shown. The display device 100a includes a display panel 110, an optical assembly 120, an upper polarizing plate 130, a first optical adhesive layer 140, a first transparent adhesive layer 150, a first hardening layer 160, and a flexible transparent film 170. The difference between the display device 100a and the display device 100 is that the display device 100a further includes a second hardening layer 162. The second hardening layer 162 is located on the flexible transparent film 170. That is, the first hardening layer 160 and the second hardening layer 162 are located on opposite sides of the flexible transparent film 170. This increases the deformation resistance of the flexible transparent film 170 in the display device 100a.

[0070] Please refer to Figure 3 , Figure 3 A cross-sectional view of a display device 100b according to another embodiment of this application is shown. The display device 100b includes a display panel 110, an optical assembly 120, an upper polarizing plate 130, a first optical adhesive layer 140, a first transparent adhesive layer 150, a first hardened layer 160, and a flexible transparent film 170. The display device 100b differs from the display device 100 in that it further includes a second light-shielding layer 180. The second light-shielding layer 180 is located between the first hardened layer 160 and the flexible transparent film 170. The second light-shielding layer 180 has an opening O2, which overlaps vertically with the opening O1 of the first light-shielding layer 115. In this embodiment, the opening O2 of the second light-shielding layer 180 is larger than the opening O1 of the first light-shielding layer 115, and the width of the opening O2 is smaller than the width of the first transparent adhesive layer 150. In this way, the second light-shielding layer 180 can cover up defects in the first transparent adhesive layer 150, such as bubbles and dirt, thereby improving the yield of the production display device 100b.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display device, characterized in that, include: The display panel has a light-transmitting area; An optical component is located below the display panel and overlaps with the light-transmitting area of ​​the display panel in the vertical direction; The upper polarizing plate is located above the display panel; The first optical adhesive layer is located on the upper polarizing plate; A first transparent adhesive layer is located between the upper polarizing plate and the first optical adhesive layer, wherein the first transparent adhesive layer overlaps with the light-transmitting area of ​​the display panel in the vertical direction; A first hardening layer is located on the first optical adhesive layer and the first transparent adhesive layer, wherein the top surface of the first hardening layer is a plane, and the first hardening layer is directly formed on the first optical adhesive layer and the first transparent adhesive layer, such that the bottom surface of the first hardening layer contacts the first optical adhesive layer and the first transparent adhesive layer. as well as A flexible transparent film is located on the first hardened layer and the first optical adhesive layer, wherein in the vertical direction, the first hardened layer is located within the projection plane of the flexible transparent film, and the flexible transparent film and the first optical adhesive layer do not overlap with the portion of the first hardened layer.

2. The display device according to claim 1, characterized in that, The display panel includes: lower base plate; The second transparent adhesive layer is located on the lower substrate and overlaps with the first transparent adhesive layer in the vertical direction; A liquid crystal layer is located on the lower substrate; A sealant layer is located between the second transparent adhesive layer and the liquid crystal layer; A first light-shielding layer is located on the liquid crystal layer, the second transparent adhesive layer, and the sealant layer, and has an opening, wherein the opening of the first light-shielding layer overlaps with the optical component in the vertical direction, and the opening defines the light-transmitting area of ​​the display panel; and The upper substrate is located on the first light-shielding layer.

3. The display device according to claim 2, characterized in that, Also includes: A second light-shielding layer is located between the first hardened layer and the soft transparent film, and has an opening, wherein the opening of the second light-shielding layer overlaps with the opening of the first light-shielding layer in the vertical direction.

4. The display device according to claim 3, characterized in that, The opening of the second light-shielding layer is larger than the opening of the first light-shielding layer.

5. The display device according to claim 2, characterized in that, The width of the second transparent adhesive layer is more than 2 millimeters greater than the width of the first transparent adhesive layer.

6. The display device according to claim 1, characterized in that, Also includes: The second hardened layer is located on the soft transparent film.

7. The display device according to claim 1, characterized in that, Also includes: The lower polarizer is located below the display panel; and The second optical adhesive layer is located between the display panel and the upper polarizing plate.

8. The display device according to claim 1, characterized in that, Also includes: An adhesion layer is located between the optical component and the display panel, wherein the material of the adhesion layer includes transparent adhesive and infrared ink.

9. The display device according to claim 1, characterized in that, The width of the first hardened layer is more than 3 millimeters greater than the width of the first transparent adhesive layer.

10. The display device according to claim 1, characterized in that, The optical component is a camera.

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