Cover plate, display device and electronic equipment

Abstract

The utility model relates to the technical field of display, particularly provides a cover plate, a display device and electronic equipment, and aims to solve the technical problem of poor hiding effect of an existing optical hole. In order to achieve the purpose, the cover plate comprises a body, the shading area and the light-transmitting area are arranged on the body, and the shading area surrounds the light-transmitting area; the at least one hole is formed in the shading area and exposes the body; the first material layer and the second material layer are sequentially stacked on the exposed body; wherein the overall reflectivity of the first material layer and the second material layer is a first reflectivity, the reflectivity of the shading area is a second reflectivity, and the absolute value of the difference between the first reflectivity and the second reflectivity is smaller than a preset threshold value. In this way, the brightness of the opening area is close to that of the surrounding shading area, the opening hiding effect is improved, and therefore the integrated black effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of display, and specifically provides a cover plate, a display device and an electronic device. Background Art

[0002] With the development of electronic products, users have higher and higher requirements for hiding optical holes.

[0003] The color difference between the ink printed at the existing optical holes and the material of the surrounding light-shielding area is large, resulting in poor hiding effect of the optical holes. Summary of the Utility Model

[0004] In order to overcome the above defects, this application is proposed to provide a solution to or at least partially solve the technical problem of poor hiding effect of existing optical holes. This application provides a cover plate, a display device and an electronic device.

[0005] In a first aspect, this application provides a cover plate, which includes:

[0006] A body;

[0007] A light-shielding area and a light-transmitting area provided on the body, wherein the light-shielding area surrounds the light-transmitting area;

[0008] At least one opening provided in the light-shielding area, exposing the body;

[0009] A first material layer and a second material layer sequentially stacked on the exposed body;

[0010] Wherein, the overall reflectivity of the first material layer and the second material layer is a first reflectivity, the reflectivity of the light-shielding area is a second reflectivity, and the absolute value of the difference between the first reflectivity and the second reflectivity is less than a preset threshold.

[0011] In an embodiment of this application, the reflectivity of the first material layer is greater than the reflectivity of the second material layer.

[0012] In an embodiment of this application, the first material layer is a varnish layer and the second material layer is an ink layer.

[0013] In an embodiment of this application, the absolute value of the difference between the overall thickness of the first material layer and the second material layer and the thickness of the light-shielding area is within a first preset range.

[0014] In an embodiment of this application, the absolute value of the difference between the thickness of the first material layer and the thickness of the second material layer is within a second preset range.

[0015] In an embodiment of this application, the material of the body is glass.

[0016] In one embodiment of the present application, a photoresist is provided in the light-shielding area.

[0017] In one embodiment of the present application, the number of the openings is 1.

[0018] In a second aspect, a display device is provided, which includes:

[0019] a sensor;

[0020] a display module;

[0021] the cover plate described in any one of the foregoing;

[0022] wherein the sensor is correspondingly installed with the opening in the cover plate.

[0023] In a third aspect, an electronic device is provided, which includes the foregoing display device.

[0024] One or more of the above technical solutions of the present application have at least one or more of the following

[0025] beneficial effects:

[0026] The cover plate in the present application includes: a body; a light-shielding area and a light-transmitting area provided on the body, wherein the light-shielding area surrounds the light-transmitting area; at least one opening provided in the light-shielding area to expose the body; a first material layer and a second material layer sequentially stacked on the exposed body; wherein, the overall reflectivity of the first material layer and the second material layer is a first reflectivity, the reflectivity of the light-shielding area is a second reflectivity, and the absolute value of the difference between the first reflectivity and the second reflectivity is less than a preset threshold. By sequentially stacking the first material layer and the second material layer in the opening area, and the overall reflectivity of the first material layer and the second material layer is basically the same as the reflectivity of the light-shielding area, the brightness of the opening area is close to that of the surrounding light-shielding area, improving the opening hiding effect, thereby achieving the integrated black effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Referring to the accompanying drawings, the disclosure of the present application will become easier to understand. It is easy for those skilled in the art to understand that: these drawings are only for illustrative purposes and are not intended to limit the protection scope of the present application. In addition, similar numbers in the drawings are used to represent similar components, where:

[0028] Figure 1 is a top view of the cover plate in an embodiment of the present application;

[0029] Figure 2 is a cross-sectional view of the cover plate along line AA in Figure 1 in an embodiment of the present application;

[0030] Figure 3It is a schematic diagram of the reflection of ambient light by an existing cover plate;

[0031] Figure 4 It is a schematic diagram of the reflection of ambient light by a cover plate in an embodiment of the present application;

[0032] Figure 5 It is a reflection curve graph after adding a varnish layer in an embodiment of the present application;

[0033] Figure 6 It is a schematic structural diagram of a display device in an embodiment of the present application. Detailed implementation manners

[0034] The following describes some implementation manners of the present application with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present application and are not intended to limit the protection scope of the present application.

[0035] In the description of the present application, "module" and "processor" may include hardware, software, or a combination of both. A module may include a hardware circuit, various suitable sensors, communication ports, memories, and may also include a software part, such as program code, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, in hardware, or in a combination of both. The non-transitory computer-readable storage medium includes any suitable medium for storing program code, such as magnetic disks, hard disks, optical discs, flash memories, read-only memories, random access memories, and so on. The term "A and / or B" represents all possible combinations of A and B, such as only A, only B, or A and B. The term "at least one A or B" or "at least one of A and B" has a meaning similar to "A and / or B" and may include only A, only B, or A and B. The singular terms "a" and "this" may also include the plural form.

[0036] Currently, there is a large color difference between the ink printed at the traditional optical hole and the material of the surrounding light-shielding area, resulting in a poor hiding effect of the optical hole.

[0037] For this reason, the present application proposes a cover plate, a display device, and an electronic device.

[0038] Such as Figure 1 And Figure 2As shown in the figure, in the embodiment of the present application, the cover plate 1 includes a body 10, a light-shielding area 20 and a light-transmitting area 30 provided on the body 10, wherein the light-shielding area 20 surrounds the light-transmitting area; at least one opening 201 provided in the light-shielding area 20 to expose the body 10; and a first material layer 202 and a second material layer 203 stacked in sequence on the exposed body 10; wherein the overall reflectivity of the first material layer 202 and the second material layer 203 is defined as the first reflectivity, and the reflectivity of the light-shielding area 20 is defined as the second reflectivity, and the absolute value of the difference between the first reflectivity and the second reflectivity is less than a preset threshold.

[0039] The preset threshold is a reflectivity threshold obtained in advance through experiments, and can be specifically adjusted adaptively according to different usage scenarios. For example, as long as the brightness difference ΔE between the overall brightness of the first material layer 202 and the second material layer 203 and the brightness of the light-shielding area is less than 2.5, the effect can be achieved.

[0040] The overall reflectivity refers to the comprehensive reflection ability of the incident ambient light after the first material layer 202 and the second material layer 203 are combined together.

[0041] The absolute value of the difference between the first reflectivity and the second reflectivity being less than the preset threshold indicates that the difference between the overall reflectivity of the first material layer 202 and the second material layer 203 and the reflectivity of the light-shielding area 20 is within the preset threshold range, thereby ensuring the consistency of the overall visual effect and effectively hiding the opening area.

[0042] By laminating the first material layer and the second material layer in the opening area, and the overall reflectivity of the first material layer and the second material layer being basically the same as the reflectivity of the light-shielding area, the brightness of the opening area is close to that of the surrounding light-shielding area, improving the opening hiding effect, thereby achieving the integrated black effect.

[0043] In a specific embodiment of the present application, the reflectivity of the first material layer 202 is greater than the reflectivity of the second material layer 203.

[0044] Adopting the reflectivity of the first material layer 202 being greater than the reflectivity of the second material layer 203 is beneficial to improving the reflection effect of ambient light, making the brightness of the opening area close to that of the surrounding light-shielding area, and improving the opening hiding effect.

[0045] In a specific embodiment of the present application, the first material layer 202 is a varnish layer, and the second material layer 203 is an ink layer.

[0046] Specifically, the first material layer 202 can be a varnish layer with a high reflectivity, and the material of the varnish can be resin or benzene ring. The second material layer 203 can be ink. Exemplarily, the second material layer 203 can be IR (Infrared filtering, IR) ink.

[0047] As shown Figure 3 in the figure, for the existing cover plate, R1 is the light that enters the human eye after the ambient light is reflected by the main body, R2 is the light that enters the human eye after the ambient light is reflected by the light-shielding area, and R3 is the light that enters the human eye after the ambient light is reflected by the ink. Since the color difference between the ink printed at the opening and the photoresist in the surrounding area is large, the amount of light that enters the human eye after the ambient light is reflected by the light-shielding area is greater than the amount of light that enters the human eye after the ambient light is reflected by the ink. Through actual measurement, it can be known that the brightness difference between the ink and the surrounding photoresist is 4-5. At this time, the brightness difference ΔE < 2.5 cannot be achieved, that is, the effective hiding of the optical hole cannot be achieved theoretically.

[0048] In this embodiment, as Figure 4 shown, R1 is the light that enters the human eye after the ambient light is reflected by the main body, R2 is the light that enters the human eye after the ambient light is reflected by the light-shielding area, R4 is the light that enters the human eye after the ambient light is reflected by the first material layer 202 (varnish), and R5 is the light that enters the human eye after the ambient light is reflected by the second material layer 203 (ink). By printing a layer of varnish between the main body and the ink, the amount of ambient light reflected by the varnish and the ink as a whole is basically close to the amount of ambient light reflected by the light-shielding area, thereby achieving a similar brightness, and finally realizing the effective hiding effect of the appearance opening area.

[0049] The material of the varnish is organic materials such as resin and benzene ring, which is similar to the ink and has good adhesion to glass. In addition, the varnish itself has a high transmittance and does not affect the final hole transmittance specification requirements.

[0050] Exemplarily, Figure 5 is a schematic diagram of the reflection curve after printing a layer of varnish under the ink in an embodiment of the present application, where the abscissa is the wavelength and the ordinate is the reflectance.

[0051] By comparing Figure 5 the two curves in the figure, it can be seen that in all wavelength ranges, the reflectance of the reflection curve (solid line) after adding the varnish is higher than that of the conventional IR reflection curve (dashed line), which indicates that adding the varnish does improve the reflectance at the opening. Since the reflectance is positively correlated with the brightness value (L value), after adding the varnish, the L value at the opening will also increase accordingly, making the L value at the opening closer to that of the surrounding area, which helps to improve the color difference problem between the two and is beneficial to improving the hiding effect of the opening.

[0052] By setting a varnish with a higher reflectance under the ink, it is beneficial to improve the reflection effect of the ambient light and enhance the hiding effect of the opening.

[0053] Specifically, the varnish can be screen-printed at the opening in a thermosetting manner, specifically by printing the varnish first and then the ink.

[0054] In a specific embodiment of the present application, the absolute value of the difference between the overall thickness of the first material layer 202 and the second material layer 203 and the thickness of the light-shielding region 20 is within a first preset range.

[0055] The first preset range can be a numerical range obtained in advance through experiments, and can be specifically adjusted adaptively according to the actual usage scenario, and no specific limitation is made thereto. For example, as long as the brightness difference ΔE between the overall brightness of the first material layer 202 and the second material layer 203 and the brightness of the light-shielding region is < 2.5, the effect can be achieved.

[0056] Exemplarily, the overall thickness of the first material layer 202 and the second material layer 203 can be slightly greater than the thickness of the light-shielding region 20.

[0057] By setting the absolute value of the difference between the overall thickness of the first material layer 202 and the second material layer 203 and the thickness of the light-shielding region 20 within the first preset range, the opening area can be better hidden.

[0058] In a specific embodiment of the present application, the absolute value of the difference between the thickness of the first material layer 202 and the thickness of the second material layer 203 is within a second preset range.

[0059] The second preset range can be a numerical range obtained in advance through experiments, and can be specifically adjusted adaptively according to the actual usage scenario, and no specific limitation is made thereto. For example, as long as the brightness difference ΔE between the overall brightness of the first material layer 202 and the second material layer 203 and the brightness of the light-shielding region is < 2.5, the effect can be achieved.

[0060] Exemplarily, the thickness of the first material layer 202 can be greater than the thickness of the second material layer 203, or the thickness of the first material layer 202 can also be less than the thickness of the second material layer 203.

[0061] By setting the absolute value of the difference between the thickness of the first material layer 202 and the thickness of the second material layer 203 within the second preset range, the opening area can be better hidden.

[0062] In a specific embodiment of the present application, the material of the body is glass, which improves the light transmittance and durability.

[0063] In a specific embodiment of the present application, except for the opening, a photoresist, such as a black matrix, is provided in the light-shielding region.

[0064] By providing a photoresist in the light-shielding region, the light-shielding effect can be enhanced and the display quality can be improved.

[0065] In a specific embodiment of the present application, the number of openings is 1.

[0066] Furthermore, the present application provides a display device. AsFigure 6 As shown, the display device includes a cover plate 1, a display module 2, and a sensor 3 as described in the foregoing embodiments, wherein the sensor 3 is correspondingly installed corresponding to the opening 201 in the cover plate 1.

[0067] Specifically, the sensor 3 may be an infrared sensor or an image sensor. The infrared sensor may be a distance sensor and / or a light sensor to perform distance detection and / or detection of the brightness of the external environment by using the reflection of infrared rays. The image sensor may be a camera or the like, and no specific limitation is made thereto.

[0068] In one embodiment, the display module 2 is only used for displaying images and does not include any touch function. It has a simple structure and low cost, and can be applied to display products that only require a display function without interaction requirements.

[0069] In another embodiment, the display module 2 may further include a touch layer, so that the display module can not only display images but also implement a touch function.

[0070] In addition, as Figure 6 shown, the display device may further include a housing 4 to protect the display device.

[0071] Furthermore, the present application provides an electronic device, and the electronic device includes the display device in the foregoing embodiments.

[0072] So far, the technical solutions of the present application have been described in conjunction with the specific embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principle of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present application.

Claims

1. A cover plate, characterized in that, The cover plate includes: A body; A light-shielding area and a light-transmitting area provided on the body, wherein the light-shielding area surrounds the light-transmitting area; At least one opening provided in the light-shielding area to expose the body; A first material layer and a second material layer sequentially stacked on the exposed body; Wherein, the overall reflectivity of the first material layer and the second material layer is a first reflectivity, the reflectivity of the light-shielding area is a second reflectivity, and the absolute value of the difference between the first reflectivity and the second reflectivity is less than a preset threshold.

2. The cover plate according to claim 1, characterized in that, The reflectivity of the first material layer is greater than the reflectivity of the second material layer.

3. The cover plate according to claim 1, characterized in that, The first material layer is a varnish layer, and the second material layer is an ink layer.

4. The cover plate according to claim 1, characterized in that, The absolute value of the difference between the overall thickness of the first material layer and the second material layer and the thickness of the light-shielding area is within a first preset range.

5. The cover plate according to claim 1, wherein The absolute value of the difference between the thickness of the first material layer and the thickness of the second material layer is within a second preset range.

6. The cover plate according to claim 1, wherein The material of the body is glass.

7. The cover plate according to claim 1, wherein, The light-shielding area is provided with photoresist.

8. The cover plate according to claim 1, characterized in that, The number of the openings is 1.

9. A display device, characterized in that, The display device includes: A sensor; A display module; The cover plate according to any one of claims 1 to 8; Wherein, the sensor is correspondingly installed with the opening in the cover plate.

10. An electronic device, characterized in that, The electronic device includes the display device according to claim 9.

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