CN210402172U - Cover plate assembly and electronic equipment - Google Patents

Abstract

The application discloses a cover plate assembly. The cover plate assembly comprises a transparent substrate, a printing layer and a photosensitive layer which are laminated on the same side of the transparent substrate, the transparent substrate comprises a visible area and a frame area positioned at the periphery of the visible area, the printing layer is positioned between the transparent substrate and the photosensitive layer, the projections of the printing layer and the photosensitive layer on the transparent substrate are positioned in the frame area, and the projection of the printing layer on the transparent substrate covers the projection of the photosensitive layer on the transparent substrate; the photosensitive layer emits display light under the excitation of the light with the target wavelength, and the display light penetrates through the printing layer to display the key pattern. The application provides a apron subassembly can cover the button pattern. The application also provides an electronic device comprising the cover plate assembly.

Description

Cover plate assembly and electronic equipment

Technical Field

The application relates to the technical field of electronics, especially, relate to a apron subassembly and electronic equipment.

Background

With the improvement of living standard of people, electronic devices such as mobile phones and the like have become indispensable daily necessities, and in recent years, not only the requirements of consumers on the performance of the electronic devices are higher and higher, but also the requirements on the appearance of the electronic devices are continuously improved. Therefore, manufacturers are constantly improving the appearance of electronic devices in order to catch the eye of the public and gain the consumer's favor.

Electronic devices generally include a cover plate for protecting a body of the electronic device or enhancing an appearance of the electronic device. In the conventional technology, the front key pattern of the electronic equipment is generally hidden in a mode of semi-transparent black or the last printing and hollowing, but the hiding effect is poor, and the key pattern printed on the cover plate in the electronic equipment can be still seen by naked eyes, so that the aesthetic feeling of the appearance of the electronic equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a apron subassembly, the printing layer in the apron subassembly is located between transparent substrate and the photosensitive layer, and the projection of printing layer on transparent substrate covers the projection of photosensitive layer on transparent substrate for the printing layer has covered the button pattern in the photosensitive layer. The application also provides an electronic device comprising the cover plate assembly.

In a first aspect, the present application provides a cover plate assembly. The cover plate assembly comprises a transparent substrate, and a printing layer and a photosensitive layer which are laminated on the same side of the transparent substrate, wherein the transparent substrate comprises a visible area and a frame area which is positioned at the periphery of the visible area, the printing layer is positioned between the transparent substrate and the photosensitive layer, the projections of the printing layer and the photosensitive layer on the transparent substrate are both positioned in the frame area, and the projection of the printing layer on the transparent substrate covers the projection of the photosensitive layer on the transparent substrate;

the photosensitive layer emits display light under the excitation of target wavelength light, and the display light penetrates through the printing layer to display the key pattern.

In one embodiment, the projection of the printed layer on the transparent substrate completely covers the frame area, and the printed layer displays one color under the irradiation of the light source.

In one embodiment, the number of the photosensitive layers is multiple, the number of the target wavelength light is multiple, the multiple photosensitive layers are sequentially stacked on one side of the printing layer away from the transparent substrate, the multiple photosensitive layers emit multiple display lights under excitation of the multiple target wavelength light in a one-to-one correspondence manner, and the multiple display lights penetrate through the printing layer to display multiple key patterns.

In one embodiment, the number of the photosensitive layers is three, and three photosensitive layers are excited by three target wavelength lights in a one-to-one correspondence manner to display the three colors of the display light, where the three target wavelength lights are lights with three wavelengths, namely red, green, and blue.

In one embodiment, a plurality of the target wavelength light includes visible light, and the target wavelength light appears in the same color as the display light.

In one embodiment, the plurality of photosensitive layers includes an infrared activated pigment layer that emits the display light of a first color when excited by infrared wavelength light and an ultraviolet activated pigment layer that emits the display light of a second color when excited by ultraviolet wavelength light; the second color is different from the first color.

In one embodiment, the photosensitive layer is a photosensitive pigment layer having the key pattern.

In a second aspect, the present application provides an electronic device. The electronic device comprises a display panel and the cover plate assembly, wherein the cover plate assembly is attached to the surface of the display panel.

In one embodiment, the electronic device further includes a light emitting component located on a side of the photosensitive layer away from the transparent substrate, the light emitting component being configured to emit light of the target wavelength.

In one embodiment, the electronic device further comprises a housing, and the housing displays the same color under the irradiation of a light source as the printed layer displays under the irradiation of the light source.

In the embodiment of the application, the printing layer in the cover plate assembly is located between the transparent substrate and the photosensitive layer, and the projection of the printing layer on the transparent substrate covers the projection of the photosensitive layer on the transparent substrate, so that the printing layer covers the key pattern in the photosensitive layer. The photosensitive layer penetrates through the printing layer to display the key patterns under the excitation of the target wavelength light, so that the key patterns are displayed in a luminous mode when the electronic equipment needs to display the key patterns, and the key patterns are not shielded by the printing layer when the key patterns do not need to be displayed, so that the purpose of effectively hiding the key patterns is achieved, and the appearance aesthetic feeling of the electronic equipment is improved.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device in a state according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 taken along line A-A;

FIG. 3 is a schematic view of the cover plate assembly of FIG. 2 in a first embodiment;

fig. 4 is a schematic structural diagram of an electronic device in another state according to an embodiment of the present application;

FIG. 5 is a schematic diagram of the electronic device of FIG. 1 showing a key pattern;

FIG. 6 is a schematic diagram of the electronic device shown in FIG. 4 without a key pattern;

FIG. 7 is a schematic structural view of the cover plate assembly shown in FIG. 2 in a second embodiment;

fig. 8 is a schematic view of a third embodiment of the cover plate assembly shown in fig. 2.

Detailed Description

Technical solutions in embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device in a state according to an embodiment of the present disclosure. The embodiment of the application provides an electronic device 100. The electronic device 100 may be a mobile phone, a tablet computer, an e-reader, a notebook computer, a vehicle-mounted device, a wearable device, or the like. In the embodiment of the present application, the electronic device 100 is described as a mobile phone.

The electronic device 100 includes a housing 10 and a display panel 20. The display panel 20 is mounted to the housing 10. The display panel 20 may be a planar panel or a curved panel, and the specific size thereof may be selected according to the requirement, which is not specifically limited in the embodiment of the present application.

Referring to fig. 2, fig. 2 is a schematic cross-sectional view of the structure shown in fig. 1 along line a-a. The electronic device 100 also includes a cover plate assembly 30. The cover plate assembly 30 is attached to the surface of the display panel 20. The cover assembly 30 is attached to a surface of the display panel 20 on one side of the display screen.

It will be appreciated that the cover assembly 30 faces the user when the user is using the electronic device 100. The cover assembly 30 serves to protect the display panel 20, and on the other hand, can print different colors, patterns, and signs, thereby decorating the electronic device 100.

The electronic device 100 further comprises a light emitting assembly 40. The light emitting assembly 40 is used to emit light of a target wavelength. The target wavelength light is visible light or invisible light. The light emitting assembly 40 covers the inside of the cover assembly 30 so that the cover assembly 30 can be irradiated with the target wavelength light emitted from the cover assembly 30.

As shown in fig. 2, in the embodiment of the present application, the light emitting assembly 40 is illustrated as being located at the inner side of the cover assembly 30. In other embodiments, the light emitting assembly 40 can be located in other locations that can illuminate the cover assembly 30, such as the sides of the cover assembly 30. In the embodiment of the present application, the specific position of the light emitting assembly 40 is not limited, and the light emitted from the light emitting assembly 40 can be irradiated to the cover plate assembly 30.

With continued reference to fig. 1 and 2, the cover plate assembly 30 includes a viewing area 301 and a border area 302 located around the viewing area 301. The visible area 301 is a transparent area of the cover member 30, and the frame area 302 is an opaque area of the cover member 30. It is understood that the viewable area 301 includes not only the display area of the electronic device 100, but also a light-transmissive portion of the electronic device 100, for example; a light-transmitting portion of a camera in the electronic apparatus 100, a sound tube in the electronic apparatus 100, and the like.

As shown in fig. 1, in the embodiment of the present application, the position relationship between the visible area 301 and the frame area 302 may be that the frame area 302 completely surrounds the visible area 301, for example: the cover plate assembly 30 is shaped as a rounded rectangle, the viewing area 301 is located in the central region of the rounded rectangle, which is also rectangular in shape, and the bezel area 302 is a rectangular ring rounded around the outer corners of the viewing area 301.

In other embodiments, the position relationship between the visual area 301 and the frame area 302 may also be that the frame area 302 is only located outside part of the visual area 301, for example: the border area 302 is only an area on two opposite sides of the visible area 301, that is, the border area 302 is divided into two parts by the visible area 301. It is understood that, in the embodiment of the present application, a specific positional relationship between the visible area 301 and the border area 302 is not limited.

The cover plate assembly 30 is printed with a key pattern. As shown in fig. 1, a rectangle, a circle, or a triangle can represent a key pattern. The key pattern is located in the border area 302. When the key pattern is excited by the light with the target wavelength, the key pattern with the corresponding color can be lightened. When the key pattern is not excited by the light of the target wavelength, the cover plate assembly 30 does not display the key pattern. Therein, a key pattern can be seen in fig. 1, indicating that the key pattern in fig. 1 is excited by light of the target wavelength and is thereby illuminated.

Further, referring to fig. 1 and 3, fig. 3 is a schematic structural diagram of the cover plate assembly 30 shown in fig. 2 according to a first embodiment. The cover assembly 30 includes a transparent substrate 31, and a printed layer 32 and a photosensitive layer 33 located on the same side of the transparent substrate 31. It is understood that the printed layer 32 and the photosensitive layer 33 are located inside the transparent substrate 31. The glass substrate faces the user when the user uses the electronic device 100.

The transparent substrate 31 is made of a transparent material having a certain hardness, such as: a glass substrate or a plastic substrate. The plastic substrate may be made of polyethylene terephthalate (PET), Polycarbonate (PC), polymethyl methacrylate (PMMA), or the like.

In one embodiment, the transparent substrate 31 is a planar glass substrate. The flat glass substrate is low in processing cost, and the flat substrate is favorable for processing the printing layer 32 and the photosensitive layer 33. In other embodiments, the transparent substrate 31 may be a curved glass substrate, such as: 2.5D glass or 3D glass.

In the process of preparing the cover assembly 30, the printed layer 32 is formed on the frame area 302 of the transparent substrate 31, and the photosensitive layer 33 is formed on the printed layer 32, so that the photosensitive layer 33 is located inside the printed layer 32, and thus, when the cover assembly 30 is mounted on the electronic device 100, a user can directly observe the printed layer 32. It will be appreciated that the print layer 32 is shown in the color of the cover assembly 30 as a whole.

Alternatively, the color of the housing 10 under light source illumination is the same as the color of the printed layer 32 under light source illumination. For example, when the casing 10 is black, the printed layer 32 is also black under the irradiation of sunlight or light, so that the user can see that the whole electronic device 100 is black, and the body is integrated, thereby improving the aesthetic feeling of the appearance of the electronic device 100.

The printing layer 32 is made of a light-shielding material. The photosensitive layer 33 is made of a photosensitive material. The photosensitive layer 33 forms a key pattern 330. The printed layer 32 is located on the side of the photosensitive layer 33 close to the transparent substrate 31. That is, the printed layer 32 is located between the transparent substrate 31 and the photosensitive layer 33. The projections of the printing layer 32 and the photosensitive layer 33 on the transparent substrate 31 are both located in the frame area 302, and the projection of the printing layer 32 on the transparent substrate 31 covers the projection of the photosensitive layer 33 on the transparent substrate 31.

In the embodiment of the present application, the printed layer 32 is located between the transparent substrate 31 and the photosensitive layer 33, and the projection of the printed layer 32 on the transparent substrate 31 covers the projection of the photosensitive layer 33 on the transparent substrate 31, that is, the printed layer 32 blocks the non-excited photosensitive layer 33, so that the printed layer 32 covers the key pattern 330 of the non-excited photosensitive layer 33, thereby improving the aesthetic appearance of the electronic device 100.

Further, please refer to fig. 1, 4 to 6 together, fig. 4 is a schematic structural diagram of the electronic device 100 provided in the embodiment of the present application in another state; FIG. 5 is a schematic diagram of the electronic device 100 shown in FIG. 1 showing a key pattern 330; fig. 6 is a schematic diagram of the electronic device 100 shown in fig. 4 without the key pattern 330. In the electronic device 100 shown in fig. 1 and 5, the light-emitting element 40 is in an on state, and at this time, the key pattern 330 in the photosensitive layer 33 emits light, and the key pattern 330 can be observed. In the electronic device 100 shown in fig. 4 and 6, the light-emitting element 40 is in an off state, and at this time, the key pattern 330 in the photosensitive layer 33 does not emit light, and the key pattern 330 cannot be observed.

The printing layer 32 adopts a printing color pattern (CMYK) that displays colors depending on reflected light. CMYK (Cyan, M: Magenta, Y: Yellow, K: Black) is a color scheme that relies on light reflection. For example, the reader can read the contents of a newspaper because sunlight or light is shone on the newspaper and reflects the contents to the reader's eyes. CMYK is visible when an external light source is required. Thus, the reader is unable to read in a dark room. The CMYK mode is expressed as long as an image is seen on a printed matter. Such as periodicals, magazines, newspapers, brochures, etc., all utilize the CMYK model.

It is understood that the print layer 32 provided in the present application only shows a color under the irradiation of a light source (sunlight or light), and the color shown by the print layer 32 cannot be seen in a dark environment.

The photosensitive layer 33 adopts an RGB mode. The RGB mode is a color mode of light emission. The photosensitive layer 33 emits display light under excitation of light of a target wavelength. The display light shows the key pattern 330 through the printed layer 32. It will be appreciated that the key pattern 330 is illuminated upon excitation by light of a target wavelength, and the key pattern 330 of a color corresponding to the target wavelength is developed through the printed layer 32. That is, the photosensitive layer 33 emits light under excitation of light of a specific wavelength, and does not emit light when the photosensitive layer 33 is not excited.

The light emitting component 40 is located on a side of the photosensitive layer 33 away from the transparent substrate. The light emitting component 40 is located on a side of the photosensitive layer 33 away from the transparent substrate, so that the target wavelength light emitted by the light emitting component 40 can irradiate the photosensitive layer 33. The target wavelength light is visible light or invisible light. The key pattern 330 may display the same color or a different color from the color of the target wavelength light when excited by the target wavelength light.

It can be understood that, as shown in fig. 1 and 5, when the light emitting assembly 40 is turned on, the key pattern 330 in the photosensitive layer 33 is excited by the light of the target wavelength in the light emitting assembly 40 to display a corresponding color, and the user can observe the key pattern 330 emitting light through the printed layer 32. As shown in fig. 4 and 6, when the light emitting assembly 40 is turned off, the key pattern 330 in the photosensitive layer 33 is not activated, the key pattern 330 does not emit light, and the user observes that the color of the cover assembly 30 is the color displayed by the printed layer 32.

In the embodiment of the present application, the printed layer 32 is located between the transparent substrate 31 and the photosensitive layer 33, and the photosensitive layer 33 penetrates through the printed layer 32 to display the key pattern 330 under the excitation of the target wavelength light, so that when the electronic device 100 needs to display the key pattern 330, the key pattern 330 emits light to display, and when the key pattern 330 does not need to be displayed, the key pattern 330 does not emit light and is shielded by the printed layer 32, thereby achieving the purpose of effectively hiding the key pattern 330, and improving the aesthetic appearance of the electronic device 100.

In one embodiment, the projection of the printed layer 32 on the transparent substrate 31 completely covers the frame area 302, and the printed layer 32 displays one color under illumination from a light source. The printed layer 32 can be made to appear in any color of black, white, silver, gold, or the like when irradiated with a light source.

In the embodiment of the present application, the projection of the printed layer 32 on the transparent substrate 31 completely covers the frame area 302, so that when the light emitting assembly 40 is turned off, the electronic device 100 only displays the color of the printed layer 32 under the irradiation of sunlight or light, and the appearance achieves an integrated effect, for example, an integrated black effect, thereby further improving the aesthetic appearance of the electronic device 100.

Further, the photosensitive layer 33 is a photosensitive pigment layer having the key pattern 330. The photosensitive pigment can make the photosensitive layer 33 display the key pattern 330 of a specific color under the excitation of light with a target wavelength.

It is understood that the photosensitive layer 33 is a photosensitive pigment layer having a predetermined pattern, i.e., the different patterns displayed by the cover plate assembly 30 are directly printed by the key pattern 330 in the photosensitive layer 33. The key pattern 330 can be printed by photosensitive ink.

Referring to fig. 7, fig. 7 is a schematic structural diagram of the cover plate assembly 30 shown in fig. 2 according to a second embodiment. The following mainly illustrates differences between the present embodiment and the first embodiment, and most technical contents of the present embodiment that are the same as those of the previous embodiments are not described in detail below.

The number of photosensitive layers 33 is plural. The number of the target wavelength lights is plural. The amount of target wavelength light corresponds to the amount of photosensitive layer 33. The multiple photosensitive layers 33 are sequentially stacked on the side of the printing layer 32 away from the transparent substrate. Each photosensitive layer 33 is provided with a different key pattern 330. The multiple photosensitive layers 33 emit multiple display lights under excitation of multiple target wavelengths in a one-to-one correspondence. The multiple display light displays the multiple key patterns 330 through the printed layer 32.

It is understood that each photosensitive layer 33 forms a different key pattern 330, the key pattern 330 of one color is displayed under the excitation of one wavelength of light, and the wavelength of excitation of each photosensitive layer 33 is different, so that the photosensitive layer 33 displays different key patterns 330 under the excitation of different wavelengths of light.

Accordingly, the photosensitive pigment for printing the key pattern 330 in each photosensitive layer 33 is different, so that each photosensitive layer 33 displays the key pattern 330 with different colors under the irradiation of light with different wavelengths.

In the embodiment of the present application, the photosensitive layer 33 includes a plurality of photosensitive layers 33, the key patterns 330 formed in each photosensitive layer 33 are different, and each photosensitive layer 33 displays different colors of display light under the excitation of different target wavelength light, so that the same position can display a plurality of different colors of key patterns 330, and the electronic device 100 presents a scene in which the plurality of different key patterns 330 are alternated, thereby increasing the appearance decoration of the electronic device 100.

In one embodiment, the number of photosensitive layers 33 is three. As shown in fig. 7, the three photosensitive layers 33 are a first photosensitive layer 331, a second photosensitive layer 332 and a third photosensitive layer 333. The three photosensitive layers 33 are excited by three target wavelength lights in a one-to-one correspondence to emit display lights of three colors. The three kinds of target wavelength light are respectively red, green and blue wavelength light. At this time, the three kinds of target wavelength light are visible light.

It is understood that the light emitting elements 40 within the electronic device 100 are capable of emitting light of three wavelengths, red, green, and blue. The three photosensitive layers 33 are used to display three colors of key patterns 330 by being excited by three wavelengths of light in a one-to-one correspondence. That is, each of the three photosensitive layers 33 displays a key pattern 330 of one color, and the colors displayed by each of the photosensitive layers 33 are different. Among them, the light emitting assembly 40 can employ an LED lamp. The LED lamp can emit light with three wavelengths of red, green and blue. The light emitting assembly 40 can also employ other light emitting devices capable of emitting light of three wavelengths, red, green, and blue. In the embodiment of the present application, the light emitting element 40 is not limited.

In other embodiments, the number of the photosensitive layers 33 can be two, and the light emitting elements 40 can emit light with two visible wavelengths, and the light emitting elements 40 can also emit light with three or more invisible wavelengths. In the second embodiment of the present application, the light emitting element 40 is described as an example of displaying light of three macroscopic wavelengths.

Specifically, the three photosensitive layers 33 include a key pattern 330 in which one photosensitive layer 33 can be excited by red-wavelength light to display one color (red, or other colors), a key pattern 330 in which the other photosensitive layer 33 can be excited by green-wavelength light to display another color (green, or other colors), and a key pattern 330 in which the other photosensitive layer 33 can be excited by blue-wavelength light emitted from the light emitting element 40 to display another color (blue, or other colors).

In the embodiment of the present application, the stacking order of the three photosensitive layers 33 is not limited. In an alternative embodiment, the three photosensitive layers 33 can be stacked in the order of the photosensitive layer 33 excited by red wavelength light, the photosensitive layer 33 excited by green wavelength light, and the photosensitive layer 33 excited by blue wavelength light.

In the embodiment of the present application, the photosensitive layer 33 is made of a material capable of being excited by three common wavelengths of red, green and blue, so that the raw material of the photosensitive layer 33 is more easily available, the cost of the photosensitive layer 33 is reduced, and the cost of the cover plate assembly 30 can be reduced.

Further, the photosensitive layer 33 emits display light with the same color as that displayed by the target wavelength light when excited by the target wavelength light.

For example, one of the three photosensitive layers 33 is excited by red wavelength light to emit red light, so that the cover assembly 30 displays red key patterns 330, the other photosensitive layer 33 is excited by green wavelength light to emit red light, so that the cover assembly 30 displays red green key patterns 330, and the other photosensitive layer 33 is excited by blue wavelength light emitted by the light emitting assembly 40 to emit blue light, so that the cover assembly 30 displays red key patterns 330.

Referring to fig. 8, fig. 8 is a schematic structural view of a cover plate assembly 30 shown in fig. 2 according to a third embodiment. The following mainly describes differences between the present embodiment and the previous embodiments, and most technical contents of the present embodiment that are the same as those of the previous embodiments are not described in detail below.

The multilayer photosensitive layer 33 includes an infrared excited pigment layer 334 and an ultraviolet excited pigment layer 335. The infrared excited pigment layer 334 emits a first color of display light under excitation of infrared wavelength light. The uv-activated pigment layer 335 emits a second color of display light upon excitation by uv-wavelength light. Wherein the second color is different from the first color. It will be appreciated that the photosensitive layer 33 exhibits a different color of key pattern 330 when excited by infrared wavelengths than when excited by ultraviolet wavelengths.

It is understood that, in the present embodiment, the plurality of target wavelengths emitted by the light emitting assembly 40 includes invisible light to the naked eye, for example, infrared wavelength light and ultraviolet wavelength light. When the light emitting component 40 emits infrared light of a certain waveband, the infrared light of the waveband irradiates the photosensitive layer 33, and the infrared excitation pigment layer 334 displays the key pattern 330 of a corresponding color; when the light emitting element 40 emits ultraviolet light, the ultraviolet light irradiates the photosensitive layer 33, and the ultraviolet excitation pigment layer 335 displays another key pattern 330 of a corresponding color.

As shown in fig. 8, the photosensitive layer 33 includes two photosensitive layers, i.e., an infrared excitation pigment layer 334 and an ultraviolet excitation pigment layer 335. In other embodiments, the photosensitive layer 33 can also have three or more layers, wherein the three or more photosensitive layers 33 include an infrared excited pigment layer 334 and an ultraviolet excited pigment layer 335. That is, in other embodiments, the light emitting assembly 40 can emit visible light or invisible light, and the photosensitive layer 33 is formed by combining a plurality of different photosensitive pigments. In the third embodiment of the present application, only two photosensitive layers 33 are illustrated, and the two photosensitive layers 33 are the infrared excitation pigment layer 334 and the ultraviolet excitation pigment layer 335, respectively. Wherein, the infrared excitation pigment and the ultraviolet excitation pigment are both the prior art and can be selected correspondingly according to the requirement.

In the third embodiment of the present application, the light emitting assembly 40 emits two kinds of infrared and ultraviolet light with wavelengths invisible to the naked eye, so that the cover plate assembly 30 can switch two different interfaces, and the interference of the visible light emitted by the light emitting assembly 40 on the image displayed by the display panel 20 can be avoided, thereby improving the quality of the electronic device 100.

In other embodiments, the light emitting assembly 40 can also emit infrared light with a plurality of different wavelength bands or ultraviolet light with a plurality of different wavelength bands, and the number of the photosensitive layers 33 is three or more. The three or more photosensitive layers 33 can emit different display colors corresponding to infrared light of different wave bands or ultraviolet light of different wave bands.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the methods and their core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A cover plate assembly is characterized by comprising a transparent substrate, a printing layer and a photosensitive layer which are laminated on the same side of the transparent substrate, wherein the transparent substrate comprises a visible area and a frame area positioned at the periphery of the visible area, the printing layer is positioned between the transparent substrate and the photosensitive layer, the projections of the printing layer and the photosensitive layer on the transparent substrate are both positioned in the frame area, and the projection of the printing layer on the transparent substrate covers the projection of the photosensitive layer on the transparent substrate;

the photosensitive layer emits display light under the excitation of target wavelength light, and the display light penetrates through the printing layer to display the key pattern.

2. The cover assembly of claim 1, wherein a projection of the printed layer on the transparent substrate completely covers the border area, and the printed layer exhibits a color under illumination by a light source.

3. The cover assembly as claimed in claim 1 or 2, wherein the number of the photosensitive layers is plural, the number of the target wavelength light is plural, the plural photosensitive layers are sequentially stacked on one side of the printing layer away from the transparent substrate, the plural photosensitive layers emit plural kinds of the display light under excitation of the plural target wavelength light in a one-to-one correspondence manner, and the plural kinds of the display light show plural kinds of the key patterns through the printing layer.

4. The cover plate assembly as claimed in claim 3, wherein the number of the photosensitive layers is three, and three of the photosensitive layers are excited by three target wavelength lights to emit the display lights of three colors in a one-to-one correspondence, and the three target wavelength lights are lights of three wavelengths of red, green and blue, respectively.

5. The cover assembly of claim 4, wherein a plurality of the target wavelength light includes visible light, the target wavelength light appearing the same color as the display light.

6. The cover assembly of claim 3, wherein the plurality of photosensitive layers includes an infrared-activated pigment layer that emits the display light of a first color when excited by infrared wavelength light and an ultraviolet-activated pigment layer that emits the display light of a second color when excited by ultraviolet wavelength light; the second color is different from the first color.

7. The cover assembly of any one of claims 4 to 6, wherein the photosensitive layer is a photosensitive pigment layer having the key pattern.

8. An electronic device comprising a display panel and the cover member according to any one of claims 1 to 7, wherein the cover member is attached to a surface of the display panel.

9. The electronic device of claim 8, further comprising a light emitting element positioned on a side of the photosensitive layer remote from the transparent substrate, the light emitting element configured to emit light at the target wavelength.

10. The electronic device of claim 8, further comprising a housing that displays the same color under illumination by a light source as the printed layer displays under illumination by the light source.

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