Cover plate semi-transparent display device

Abstract

The invention relates to a cover plate semi-transparent display device. The device comprises a cover plate, a black ink layer is arranged on the surface of one side of the cover plate, and a first transmission area is formed in the area without the black ink layer; the transmission function layer is attached to the side, provided with the black ink layer, of the cover plate, the transmission function layer comprises an optical adhesive film and a light homogenizing piece, and the optical adhesive film is attached to the light homogenizing piece; wherein a semi-transparent structure is arranged on the transmission function layer, and the semi-transparent structure and the first transmission area are matched with each other to form a semi-transparent display area. By transferring the semi-transparent structure from the cover plate to the transparent functional layer, the common appearance defects of ink shrinkage, oil accumulation, color difference, black spots, white spots and the like in the traditional screen printing process are effectively avoided, and the yield and the display quality of products are improved.

Description

Technical Field

[0001] The present application relates to the technical field of display screens, and in particular to a cover plate semi-transparent display device. Background Art

[0002] With the rapid development of electronic display technology, the application scenarios of display screens are becoming increasingly diverse, and the requirements for display effects are becoming higher and higher. As an important component of the display screen, the glass cover plate needs to meet specific visual effect requirements while protecting the display screen. Among them, the semi-transparent display technology of the cover plate pattern has gradually become a hot spot for research and application. This technology can hide the pattern when not in use and display the pattern when needed, thereby improving the overall aesthetics and user experience of the display screen.

[0003] In the prior art, the semi-transparent display of the cover plate pattern is mainly achieved by screen printing semi-transparent ink on the cover plate surface. Screen printing technology is a traditional printing process that transfers ink to the cover plate surface through a screen to form a semi-transparent pattern. However, this technology has many problems in practical applications, which limits its wide application in the field of high-end display screens.

[0004] First, screen printing semi-transparent ink is prone to appearance defects during the printing process. For example, the ink may shrink during the drying process, resulting in uneven pattern edges and affecting the display effect. In addition, the ink may accumulate during the screen printing process, forming defects such as different colors or black spots and white spots, which seriously affect the appearance quality of the product. These problems can be alleviated by strictly controlling the process parameters in small-area pattern printing, but these problems are particularly prominent when large-area pattern printing, resulting in a significant decrease in product yield. Secondly, the limitations of the screen printing process make it difficult to achieve a gradient effect in the color of the pattern. In modern display design, the gradient effect of the pattern (such as the transition from dark to light color) is an important means to enhance visual beauty. However, due to its process characteristics, traditional screen printing technology is difficult to achieve such a complex color transition, which limits the flexibility and diversity of display design. In addition, in traditional technology, semi-transparent black ink is usually screen-printed on the cover plate, and a uniform light sheet is used on the back to control the switch of the LED to display and hide the pattern. Although this method can meet the functional requirements of pattern hiding and displaying to a certain extent, in actual production, the complexity of the silk screen printing process and the strict environmental requirements make it difficult to ensure its stability and consistency in large-scale production.

[0005] Therefore, there is an urgent need for an improved solution that can effectively solve the above problems, so as to improve the yield and quality of pattern display and meet the diverse needs of modern display screens for pattern display. Summary of the invention

[0006] Based on this, it is necessary to provide a cover plate semi-transparent display device to address the problems of appearance defects, low yield, insufficient flexibility in pattern design, and poor mass production of large-area printing caused by silk-screen printing of semi-transparent ink on the cover plate.

[0007] A cover plate semi-transparent display device comprises: a cover plate, wherein a black ink layer is arranged on a surface of one side of the cover plate, and an area where the black ink layer is not arranged forms a first transmission area; a transmission functional layer, wherein the transmission functional layer is adhered to the side of the cover plate where the black ink layer is arranged, and the transmission functional layer comprises an optical adhesive film and a light-distributing sheet, and the optical adhesive film is adhered to the light-distributing sheet; wherein a semi-transparent structure is arranged on the transmission functional layer, and the semi-transparent structure cooperates with the first transmission area to form a semi-transparent display area.

[0008] In one embodiment, the semi-permeable structure of the transmissive functional layer includes at least one of the following:

[0009] A semi-transparent ink layer is provided on the light homogenizing sheet, and the semi-transparent ink layer is provided on the front side or the back side of the light homogenizing sheet;

[0010] The semi-transparent structure is the optical adhesive film, and the optical adhesive film is a semi-transparent optical adhesive film;

[0011] The semi-transparent structure is the light-distributing sheet, and the light-distributing sheet is a semi-transparent light-distributing sheet.

[0012] In one embodiment, a black ink layer is disposed on the light homogenizing sheet, and the black ink layer on the light homogenizing sheet is disposed on the side where the optical adhesive film and the light homogenizing sheet are bonded, and the area on the light homogenizing sheet where the black ink layer is not disposed forms a second transmission area.

[0013] In one of the embodiments, the black ink layer disposed on the light homogenizing sheet partially blocks the first transmission area.

[0014] In one embodiment, the semi-permeable structure of the permeable functional layer further comprises at least one of the following:

[0015] A semi-permeable ink layer disposed on the second permeable area;

[0016] The semi-transparent structure is the optical adhesive film, the optical adhesive film is a semi-transparent optical adhesive film, and the second transmission area is covered by the semi-transparent optical adhesive film;

[0017] The semi-transparent structure is the light homogenizer, the light homogenizer is a semi-transparent light homogenizer, and the second transparent area is covered by the optical adhesive film.

[0018] In one embodiment, the thickness of the optical adhesive film is 0.1 mm-0.5 mm.

[0019] In one embodiment, the thickness of the black ink layer and the semi-transparent ink layer is 0.003 mm-0.008 mm.

[0020] In one embodiment, the semi-transparent colors of the semi-transparent ink layer, the semi-transparent optical adhesive film and the semi-transparent light-homogenizing sheet are semi-transparent black, semi-transparent blue, semi-transparent yellow and semi-transparent green.

[0021] In one embodiment, the transmittance of the semi-transparent ink layer, the semi-transparent optical adhesive film and the semi-transparent light-homogenizing sheet is 3-10%.

[0022] In one of the embodiments, the cover plate semi-transparent display device further includes an LED backlight module, and the LED backlight module cooperates with the cover plate and the transparent functional layer to achieve hiding and display of the semi-transparent display area.

[0023] The above-mentioned cover plate semi-transparent display device effectively avoids the appearance defects caused by the traditional silk-screen printing process by transferring the semi-transparent effect from silk-screen printing on the cover plate to the transparent functional layer. It can also meet the needs of modern display screens for diversified designs, while significantly improving the mass production of large-area printing, providing a new solution for the development of cover plate semi-transparent display technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a cover plate semi-transparent display device in the prior art.

[0025] Figure 2 This is a schematic diagram of the cover plate semi-transparent display device in Example 1 provided in the present application.

[0026] Figure 3 This is a schematic diagram of the cover plate semi-transparent display device in the second embodiment provided in the present application.

[0027] Figure 4 This is a schematic diagram of the cover plate semi-transparent display device in Example 3 provided in the present application.

[0028] Figure 5 This is a schematic diagram of the cover plate semi-transparent display device in the fourth embodiment provided in the present application.

[0029] Figure 6 This is a schematic diagram of the cover plate semi-transparent display device in Example 5 provided in the present application.

[0030] Figure 7 This is a schematic diagram of the cover plate semi-transparent display device in Example 6 provided in the present application.

[0031] The reference numerals in the specific implementation manner are as follows:

[0032] 10. Cover plate; 11. Black ink layer; 12. First transmission area; 13. Double-sided tape;

[0033] 20. Transmission functional layer; 21. Optical adhesive film; 22. Light homogenizer; 23. Semi-transmission ink layer; 24. Second transmission area. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, 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 implementation method.

[0040] The existing technology uses screen printing of semi-transparent ink on the cover plate, and a light-distributing film on the back to realize the display and hiding of the display area by controlling the switch of the light-emitting diode (LED). Although this method can meet the hiding and display function requirements of the display area to a certain extent, in actual production, the screen printing process is complex and has strict environmental requirements, making it difficult to ensure its stability and consistency in large-scale production. Especially when printing ink on a large area, the printing quality of the semi-transparent ink has a significant impact on the final display effect, making mass production more difficult.

[0041] See also Figure 1 , Figure 1 A schematic diagram of a cover plate semi-transparent display device in the prior art is shown. The device includes a cover plate 10, a black ink layer 11, a semi-transparent ink layer 23, a light-distributing sheet 22, and a double-sided adhesive tape 13. A black ink layer 11 is provided on one side of the cover plate 10 of the device, and a first transmission area 12 is formed in an area where the black ink layer 11 is not provided, and a screen-printed semi-transparent ink layer 23 is provided on the first transmission area 12. The light-distributing sheet 22 is attached to the side of the cover plate 10 where the black ink layer 11 is provided, and the light-distributing sheet 22 is attached to the cover plate 10 through a double-sided adhesive tape 13. The device also includes an LED backlight module provided on the back, and the display and hiding of the first transmission area 12 can be realized by controlling the switch of the LED. However, when the traditional silk-screen semi-transparent ink technology prints ink over a large area, it is easy to have appearance defects such as different colors, black spots and white spots caused by ink shrinkage and oil accumulation, and these problems will seriously affect the display effect and the yield of the product. With the increase of the printing area, these problems will become more prominent, resulting in a significant decrease in the product yield and poor mass production.

[0042] The cover plate semi-transparent display device provided by the present application effectively avoids the appearance defects caused by the traditional silk-screen printing process by transferring the semi-transparent effect from the silk-screen printing on the cover plate to the transparent functional layer. The semi-transparent structure is arranged on the transparent functional layer of the present application. By attaching the transparent functional layer to the side of the black ink layer set on the cover plate, the display area is hidden and displayed, the product yield is improved, and mass production is achieved. When printing on a large area, the present application can significantly improve the yield and quality of the product, and at the same time meet the needs of modern display screens for diversified designs, such as achieving a gradient effect of pattern color, etc., providing a reliable technical guarantee for the mass production of large-area cover plate semi-transparent display technology.

[0043] Embodiment 1:

[0044] See also Figure 2 , Figure 2 The schematic diagram of the cover plate semi-transparent display device in the first embodiment of the present application is shown. The cover plate semi-transparent display device provided by the present application includes a cover plate 10 and a transmission function layer 20. A black ink layer 11 is provided on one side of the surface of the cover plate 10, and the area without the black ink layer 11 forms a first transmission area 12. The transmission function layer 20 is attached to the side of the cover plate 10 where the black ink layer 11 is provided. The transmission function layer 20 includes an optical adhesive film 21 and a light homogenizing sheet 22, and the optical adhesive film 21 is attached to the light homogenizing sheet 22. Among them, a semi-transparent structure is provided on the transmission function layer 20, and the semi-transparent structure cooperates with the first transmission area 12 to form a semi-transparent display area.

[0045] In the first embodiment, the semi-transparent structure is a semi-transparent ink layer 23 disposed on the light homogenizing sheet 22 .

[0046] Optionally, the semi-transparent ink layer 23 can be disposed on the front or back side of the light-distributing sheet 22. Figure 2 It is shown that the semi-transparent ink layer 23 is arranged on the reverse side of the light-distributing sheet 22. The semi-transparent ink layer 23 can also be arranged at the joint of the light-distributing sheet 22 and the optical adhesive film 21, that is, on the front side of the light-distributing sheet 22.

[0047] Optionally, the semi-transparent ink layer 23 is spray-printed on the light-distributing sheet 22. The spray-printing technology avoids the problems of ink shrinkage and oil accumulation in the traditional screen printing process, thereby improving the yield and quality of the product.

[0048] Embodiment 2:

[0049] See also Figure 3 , Figure 3The schematic diagram of the cover plate semi-transparent display device in the second embodiment of the present application is shown. The cover plate semi-transparent display device provided by the present application includes a cover plate 10 and a transmission function layer 20. A black ink layer 11 is provided on one side of the surface of the cover plate 10, and the area without the black ink layer 11 forms a first transmission area 12. The transmission function layer 20 is attached to the side of the cover plate 10 where the black ink layer 11 is provided. The transmission function layer 20 includes an optical adhesive film 21 and a light homogenizing sheet 22, and the optical adhesive film 21 is attached to the light homogenizing sheet 22. Among them, a semi-transparent structure is provided on the transmission function layer 20, and the semi-transparent structure cooperates with the first transmission area 12 to form a semi-transparent display area.

[0050] In the second embodiment, the semi-transparent structure is an optical adhesive film 21 , and the optical adhesive film 21 is configured as a semi-transparent optical adhesive film in the second embodiment.

[0051] By using the semi-transparent optical adhesive film 21 , it is avoided to directly print the semi-transparent ink layer 23 on the cover plate 10 , thereby improving the display effect and the product yield.

[0052] Embodiment three:

[0053] See also Figure 4 , Figure 4 A schematic diagram of a cover plate semi-transparent display device in the third embodiment of the present application is shown. A cover plate semi-transparent display device provided by the present application includes a cover plate 10 and a transmission function layer 20. A black ink layer 11 is provided on one side of the surface of the cover plate 10, and a first transmission area 12 is formed in an area where the black ink layer 11 is not provided. The transmission function layer 20 is attached to the side of the cover plate 10 where the black ink layer 11 is provided. The transmission function layer 20 includes an optical adhesive film 21 and a light homogenizing sheet 22, and the optical adhesive film 21 is attached to the light homogenizing sheet 22. Among them, a semi-transparent structure is provided on the transmission function layer 20, and the semi-transparent structure cooperates with the first transmission area 12 to form a semi-transparent display area.

[0054] In the third embodiment, the semi-transparent structure is a light homogenizer 22 , and the light homogenizer 22 is configured as a semi-transparent light homogenizer in the third embodiment.

[0055] By using a semi-transparent light-homogenizing sheet, direct printing of the semi-transparent ink layer 23 on the cover plate 10 is avoided, the product yield is improved, and the diversified design requirements of modern display screens are met.

[0056] Embodiment 4:

[0057] See also Figure 5 , Figure 5A schematic diagram of a cover plate semi-transparent display device in the fourth embodiment of the present application is shown. A cover plate semi-transparent display device provided by the present application includes a cover plate 10 and a transmission function layer 20. A black ink layer 11 is provided on one side of the cover plate 10, and a first transmission area 12 is formed in an area where the black ink layer 11 is not provided. The transmission function layer 20 is attached to the side of the cover plate 10 where the black ink layer 11 is provided. The transmission function layer 20 includes an optical adhesive film 21 and a light homogenizing sheet 22, and the optical adhesive film 21 is attached to the light homogenizing sheet 22. Among them, a semi-transparent structure is provided on the transmission function layer 20, and the semi-transparent structure cooperates with the first transmission area 12 to form a semi-transparent display area.

[0058] A black ink layer 11 is also provided on the light homogenizing sheet 22, and the black ink layer 11 is provided on the side where the optical adhesive film 21 and the light homogenizing sheet 22 are bonded. The area on the light homogenizing sheet 22 where the black ink layer 11 is not provided forms a second transmission area 24, and the black ink layer 11 provided on the light homogenizing sheet 22 partially blocks the first transmission area 12. Since the black ink layer 11 provided on the light homogenizing sheet 22 partially blocks the first transmission area 12, the actual semi-transparent display area is the second transmission area 24.

[0059] In the fourth embodiment, the semi-permeable structure is a semi-permeable ink layer 23 disposed on the second permeable area 24 .

[0060] By printing the black ink layer 11 on the light-distributing sheet 22 , the screen printing area on the cover plate 10 is reduced, the printing yield is improved, and a guarantee is provided for mass production.

[0061] Embodiment five:

[0062] See also Figure 6 , Figure 6 The schematic diagram of the cover plate semi-transparent display device in the fifth embodiment of the present application is shown. The cover plate semi-transparent display device provided by the present application includes a cover plate 10 and a transmission function layer 20. A black ink layer 11 is provided on one side of the surface of the cover plate 10, and the area without the black ink layer 11 forms a first transmission area 12. The transmission function layer 20 is attached to the side of the cover plate 10 where the black ink layer 11 is provided. The transmission function layer 20 includes an optical adhesive film 21 and a light homogenizing sheet 22, and the optical adhesive film 21 is attached to the light homogenizing sheet 22. Among them, a semi-transparent structure is provided on the transmission function layer 20, and the semi-transparent structure cooperates with the first transmission area 12 to form a semi-transparent display area.

[0063] A black ink layer 11 is also provided on the light homogenizing sheet 22, and the black ink layer 11 is provided on the side where the optical adhesive film 21 and the light homogenizing sheet 22 are bonded. The area on the light homogenizing sheet 22 where the black ink layer 11 is not provided forms a second transmission area 24, and the black ink layer 11 provided on the light homogenizing sheet 22 partially blocks the first transmission area 12. Since the black ink layer 11 provided on the light homogenizing sheet 22 partially blocks the first transmission area 12, the actual semi-transparent display area is the second transmission area 24.

[0064] In the fifth embodiment, the semi-transparent structure is an optical adhesive film 21 . The optical adhesive film 21 is configured as a semi-transparent optical adhesive film in the fifth embodiment, and the second transparent area 24 is covered by the semi-transparent optical adhesive film.

[0065] The fifth embodiment combines a semi-transparent optical adhesive film with a black ink layer 11 printed on the light homogenizing sheet 22, thereby reducing the screen printing area on the cover plate 10 and further improving the display effect and printing yield of the product.

[0066] Embodiment six:

[0067] See also Figure 7 , Figure 7 The schematic diagram of the cover plate semi-transparent display device in the sixth embodiment of the present application is shown. The cover plate semi-transparent display device provided by the present application includes a cover plate 10 and a transmission function layer 20. A black ink layer 11 is provided on one side of the surface of the cover plate 10, and the area without the black ink layer 11 forms a first transmission area 12. The transmission function layer 20 is attached to the side of the cover plate 10 where the black ink layer 11 is provided. The transmission function layer 20 includes an optical adhesive film 21 and a light homogenizing sheet 22, and the optical adhesive film 21 is attached to the light homogenizing sheet 22. Among them, a semi-transparent structure is provided on the transmission function layer 20, and the semi-transparent structure cooperates with the first transmission area 12 to form a semi-transparent display area.

[0068] A black ink layer 11 is also provided on the light homogenizing sheet 22, and the black ink layer 11 is provided on the side where the optical adhesive film 21 and the light homogenizing sheet 22 are bonded. The area on the light homogenizing sheet 22 where the black ink layer 11 is not provided forms a second transmission area 24, and the black ink layer 11 provided on the light homogenizing sheet 22 partially blocks the first transmission area 12. Since the black ink layer 11 provided on the light homogenizing sheet 22 partially blocks the first transmission area 12, the actual semi-transparent display area is the second transmission area 24.

[0069] In the sixth embodiment, the semi-transparent structure is a light homogenizer 22 . The light homogenizer 22 is configured as a semi-transparent light homogenizer in the sixth embodiment, and the second transparent area 24 is covered by the optical adhesive film 21 .

[0070] Embodiment 6 By printing a black ink layer 11 on the semi-transparent light-homogenizing sheet, the screen printing area on the cover plate 10 is reduced, thereby improving the visual beauty and design flexibility of the display screen.

[0071] All of the above implementations circumvent the defects of traditional silk-screen printing processes by transferring the semi-transparent structure from the cover plate to the transparent functional layer. The original technology directly screen-prints semi-transparent ink on the surface of the cover plate, which is prone to display problems such as discoloration, black spots / white spots due to ink shrinkage and oil accumulation. By moving the semi-transparent structure to the transparent functional layer, such appearance defects can be significantly reduced, and the product yield can be improved. The effect of this application scheme in large-area printing applications is more significant. The above implementations simplify the production process and enhance design flexibility. The transparent functional layer can adopt a pre-processed semi-transparent structure (such as a semi-transparent optical film or a semi-transparent light-dispersing film), and there is no need to perform complex ink printing on the cover plate, reducing process steps and precision dependence. In addition, this application saves production costs while improving mass production. The modular design of the transparent functional layer (such as a light-dispersing film) supports standardized production, which can reduce dependence on the processing accuracy of the cover plate and reduce production losses; and the material replacement of the semi-transparent structure (such as using a semi-transparent light-dispersing film instead of ink printing) can further reduce material costs and process complexity, providing a stable and efficient technical path for large-scale mass production.

[0072] According to some embodiments of the present application, optionally, the thickness of the optical adhesive film is 0.1 mm-0.5 mm.

[0073] According to some embodiments of the present application, optionally, the thickness of the black ink layer is 0.003 mm-0.008 mm. Preferably, the thickness of the black ink layer is ≤0.006 mm.

[0074] According to some embodiments of the present application, optionally, the thickness of the semi-permeable ink layer is 0.003 mm-0.008 mm. Preferably, the thickness of the semi-permeable ink layer is ≤0.006 mm.

[0075] According to some embodiments of the present application, the semi-transparent colors of the semi-transparent ink layer, the semi-transparent optical adhesive film and the semi-transparent light homogenizing sheet can be selected according to actual display requirements. Preferably, the semi-transparent colors of the semi-transparent ink layer, the semi-transparent optical adhesive film and the semi-transparent light homogenizing sheet are semi-transparent black, semi-transparent blue, semi-transparent yellow and semi-transparent green.

[0076] According to some embodiments of the present application, optionally, the transmittance of the semi-permeable ink layer is 3-10%.

[0077] According to some embodiments of the present application, optionally, the transmittance of the semi-transparent optical adhesive film is 3-10%.

[0078] According to some embodiments of the present application, optionally, the transmittance of the semi-transparent light homogenizing sheet is 3-10%.

[0079] By adjusting the transmittance (3%-10%), color (black, blue, yellow, green) and thickness parameters of the semi-transparent ink layer, optical film and light-homogenizing sheet, complex visual effects such as color gradient and multi-color matching can be easily achieved, breaking through the technical limitations of traditional silk screen printing.

[0080] According to some embodiments of the present application, optionally, the cover plate semi-transparent display device also includes an LED backlight module, and the LED backlight module cooperates with the cover plate and the transmissive functional layer to achieve hiding and display of the semi-transparent display area.

[0081] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0082] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A cover plate semi-transparent display device, characterized in that: include: A cover plate, wherein a black ink layer is disposed on one surface of the cover plate, and an area without the black ink layer forms a first transmission area; A transmissive functional layer, the transmissive functional layer is attached to the side of the cover plate where the black ink layer is provided, the transmissive functional layer comprises an optical adhesive film and a light-distributing sheet, the optical adhesive film is attached to the light-distributing sheet; wherein, A semi-transparent structure is disposed on the transmission functional layer, and the semi-transparent structure cooperates with the first transmission area to form a semi-transparent display area.

2. A cover plate semi-transparent display device according to claim 1, characterized in that: The semi-permeable structure of the permeable functional layer includes at least one of the following: A semi-transparent ink layer is provided on the light homogenizing sheet, and the semi-transparent ink layer is provided on the front side or the back side of the light homogenizing sheet; The semi-transparent structure is the optical adhesive film, and the optical adhesive film is a semi-transparent optical adhesive film; The semi-transparent structure is the light-distributing sheet, and the light-distributing sheet is a semi-transparent light-distributing sheet.

3. The cover plate semi-transparent display device according to claim 1, characterized in that: A black ink layer is disposed on the light homogenizing sheet, and the black ink layer on the light homogenizing sheet is disposed on a side where the optical adhesive film and the light homogenizing sheet are bonded, and a second transmission area is formed in an area on the light homogenizing sheet where the black ink layer is not disposed.

4. A cover plate semi-transparent display device according to claim 3, characterized in that: The black ink layer disposed on the light homogenizing sheet partially blocks the first transmission area.

5. The cover plate semi-transparent display device according to claim 4, characterized in that: The semi-permeable structure of the permeable functional layer further comprises at least one of the following: A semi-permeable ink layer disposed on the second permeable area; The semi-transparent structure is the optical adhesive film, the optical adhesive film is a semi-transparent optical adhesive film, and the second transmission area is covered by the semi-transparent optical adhesive film; The semi-transparent structure is the light homogenizer, the light homogenizer is a semi-transparent light homogenizer, and the second transparent area is covered by the optical adhesive film.

6. The cover plate semi-transparent display device according to claim 1, characterized in that: The thickness of the optical adhesive film is 0.1 mm-0.5 mm.

7. A cover plate semi-transparent display device according to claim 2 or 5, characterized in that: The thickness of the black ink layer and the semi-transparent ink layer is 0.003mm-0.008mm.

8. A cover plate semi-transparent display device according to claim 2 or 5, characterized in that: The semi-transparent colors of the semi-transparent ink layer, the semi-transparent optical adhesive film and the semi-transparent light-homogenizing sheet are semi-transparent black, semi-transparent blue, semi-transparent yellow and semi-transparent green.

9. A cover plate semi-transparent display device according to claim 2 or 5, characterized in that: The transmittance of the semi-transparent ink layer, the semi-transparent optical adhesive film and the semi-transparent light-homogenizing sheet is 3-10%.

10. The cover plate semi-transparent display device according to claim 1, characterized in that: The cover plate semi-transparent display device also includes an LED backlight module, and the LED backlight module cooperates with the cover plate and the transparent functional layer to achieve hiding and display of the semi-transparent display area.

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