LCD screen assembly and display device

Abstract

The utility model discloses an LCD screen assembly and a display device, and relates to the technical field of digital screens, the LCD screen assembly comprises a display module, a backlight module and an interaction module which are arranged in a stacked mode, the display module displays images based on light generated by the backlight module, the interaction module is used for receiving or transmitting electromagnetic signals, the interaction module comprises an antenna board, and the antenna board is used for receiving or transmitting electromagnetic signals. A reflective layer is formed on one side, facing the backlight module, of the antenna plate, a magnetic isolation layer is formed on the other side of the antenna plate, and the thickness value of a whole formed by the reflective layer, the antenna plate and the magnetic isolation layer is set to be 0.2-0.4 mm. According to the LCD screen assembly, the overall thickness of the LCD screen assembly can be effectively reduced, and when the LCD screen assembly is used for a digital screen or a tablet computer, the overall thickness can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of digital screens, and in particular to an LCD screen assembly and a display device. Background Art

[0002] The reflective sheet (reflective film) in traditional LCD components is made of PET, PC, PP and other substrates and is embedded below the light guide plate, that is, between the light guide plate and the supporting metal plate. At present, the hand-painted screen or tablet computer has an antenna plate under the reflective sheet (reflective film), and a magnetic isolation sheet is pasted under the antenna plate. However, the reflective sheet, antenna plate and magnetic isolation sheet are manufactured separately and then pasted together. Although this method meets the needs of magnetic isolation and reflection, it also makes the overall thickness of the hand-painted screen or tablet computer thicker, not thin enough, and not convenient to carry. Utility Model Content

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application provides an LCD screen assembly that can effectively reduce the overall thickness of the LCD screen assembly, and when used in a digital screen or a tablet computer, can effectively reduce the overall thickness.

[0004] The embodiment of the present application also provides a display device.

[0005] According to an embodiment of the first aspect of the present application, there is provided an LCD screen assembly, comprising a stacked display module, a backlight module and an interactive module, wherein the display module displays an image based on the light generated by the backlight module, the interactive module is used to receive or transmit electromagnetic signals, and the interactive module comprises an antenna board, wherein a reflective layer is formed on one side of the antenna board facing the backlight module, and a magnetic isolation layer is formed on the other side, and the overall thickness of the reflective layer, the antenna board and the magnetic isolation layer is set to 0.2 mm to 0.4 mm.

[0006] The above-mentioned LCD screen assembly has at least the following beneficial effects: the above-mentioned LCD screen assembly abandons the traditional practice of separately manufacturing the reflective sheet, antenna board, and magnetic isolation sheet, and also abandons the design that the reflective sheet, antenna board, and magnetic isolation sheet are connected by bonding. The reflective layer is directly formed on one side of the antenna board, and the magnetic isolation layer is directly formed on the other side of the antenna board, so that the overall thickness value of the reflective layer, antenna board and magnetic isolation layer is controllable, and the thickness of the LCD screen assembly can be made thinner. When applied to digital screens or tablet computers, the overall thickness can be effectively reduced, making the digital screen or tablet computer lighter and more portable. Furthermore, it can save the use of materials and effectively save costs.

[0007] According to the LCD screen assembly described in the embodiment of the first aspect of the present application, the reflective layer is arranged on the side of the antenna board facing the backlight module by electroplating, etching, printing or high-gloss lamination.

[0008] According to the LCD screen assembly described in the embodiment of the first aspect of the present application, the material of the reflective layer is one of PET, PC, and PP.

[0009] According to the LCD screen assembly described in the embodiment of the first aspect of the present application, the area of ​​the reflective layer is larger than the area of ​​the backlight module.

[0010] According to the LCD screen assembly described in the embodiment of the first aspect of the present application, the magnetic isolation layer is arranged on the side of the antenna board facing away from the backlight module by physical vapor deposition, chemical vapor deposition or electroplating.

[0011] According to the LCD screen assembly described in the embodiment of the first aspect of the present application, the material of the magnetic isolation layer is silicon steel sheet.

[0012] According to the LCD screen assembly described in the first aspect of the present application, the display module includes a first polarizing film, a filter, a color liquid crystal screen and a second polarizing film stacked in sequence, and the second polarizing film is attached to the backlight module.

[0013] According to the LCD screen assembly described in the first embodiment of the present application, the backlight module includes a first diffusion film, a brightness enhancement film, a second diffusion film and a light guide plate stacked in sequence, and the light guide plate is attached to the reflective layer.

[0014] According to the LCD screen assembly described in the embodiment of the first aspect of the present application, the LCD screen assembly also includes a support plate, and the support plate is arranged on a side of the magnetic isolation layer facing away from the antenna board.

[0015] According to an embodiment of the second aspect of the present application, a display device is provided, comprising the LCD screen assembly described above.

[0016] The above-mentioned display device has at least the following beneficial effects: the display device using the above-mentioned LCD screen assembly can effectively reduce the overall thickness of the display device, making the display device thinner and more portable, and further, can save the use of materials and effectively save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 is a schematic diagram of an LCD screen assembly according to an embodiment of the present application;

[0019] Figure 2This is a schematic diagram of an interactive module in an embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of a digital screen in an embodiment of the present application. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0022] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 should not be understood as a limitation on the present application.

[0023] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0025] The digital screen is also called a hand-painted screen or a painting screen. It is generally composed of a digital screen + a stylus + a support frame. It integrates a display and a digital tablet. After connecting to a computer (Windows and Mac), a tablet or a mobile phone, the screen can be expanded to the digital screen, such as drawing software, and then you can use the matching stylus to draw or write directly on the digital screen. Compared with the sense of dislocation that may be caused by the separation of handwriting and display on a digital tablet, the digital screen that directly writes on the screen is what you get, and you can see it directly, which is more like the realism of writing on ordinary paper. At the same time, it also has the characteristics of LED LCD displays such as no radiation and space saving.

[0026] However, the existing digital screens are not yet thin and portable enough, so there is room for further optimization.

[0027] Reference Figure 1 and Figure 2 The present application provides an LCD screen assembly, specifically including a stacked display module, a backlight module and an interactive module. The display module displays images based on the light generated by the backlight module. The interactive module is used to receive or transmit electromagnetic signals. The interactive module 300 includes an antenna board 320. The antenna board 320 has a reflective layer 310 formed on one side facing the backlight module and a magnetic isolation layer 330 formed on the other side. The overall thickness of the reflective layer 310, the antenna board 320 and the magnetic isolation layer 330 is set to 0.2 mm to 0.4 mm.

[0028] The display module includes a first polarizing film 110, a filter 120, a color liquid crystal screen 130 and a second polarizing film 140 stacked in sequence, and the second polarizing film 140 is attached to the backlight module. The color liquid crystal screen 130 is referred to as TFT, which means thin film transistor. Each liquid crystal pixel of the color liquid crystal screen 130 is driven by a thin film transistor integrated behind the pixel, so that the screen information can be displayed at high speed, high brightness and high contrast. It is one of the better LCD color display devices and can be used for display on tablet computers or digital screens.

[0029] The polarizing film can allow light from a specific direction of the backlight module to pass through and filter out light from other directions. The electric field is then used to adjust the rotation angle of the liquid crystal molecules, affecting the polarization direction of the light passing through the LCD screen, thereby controlling the transmission or blocking of light to achieve image display.

[0030] The filter 120 achieves light separation or spectrum adjustment by selectively transmitting or absorbing light at a selected wavelength, which is beneficial to improving the readability of the color LCD screen 130 .

[0031] The backlight module includes a first diffusion film 210 , a brightness enhancement film 220 , a second diffusion film 230 and a light guide plate 240 which are stacked in sequence. The light guide plate 240 is attached to the reflective layer 310 .

[0032] Specifically, the diffusion film is an industrial film. Its basic structure is to coat optical scattering particles on a transparent substrate (such as PET). Through this structure, light is scattered on its surface, thereby achieving a soft and uniform light diffusion effect. The diffusion film mainly plays the role of correcting the diffusion angle in the backlight structure, which can increase the light radiation area, but at the same time reduce the light intensity per unit area, that is, reduce the brightness. This characteristic enables the light source on the light guide plate 240 to become a secondary light source with a larger area, better uniformity and stable color after passing through the diffusion material.

[0033] The working principle of the brightness enhancement film 220 is to repeatedly reflect and transmit light through the superposition of half-wavelength optical phase difference and reflection and transmission of multi-layer thin films, thereby improving the brightness and uniformity of light. The setting of the brightness enhancement film 220 and the diffusion film can make the light emitted by the backlight module more uniform, which is conducive to the high-quality display of the display module.

[0034] In the embodiment of the present application, the light guide plate 240 can be formed using a material that diffuses light, wherein the material that diffuses light has various properties such as light transmittance, heat resistance, chemical resistance, and mechanical strength. Examples of materials that can be used for the diffuse light include polyethylene, polymethyl methacrylate, polyamide, polyimide, polypropylene, polyurethane, etc. The main function of the light guide plate 240 is to convert the point light source emitted by the light source arranged on the side of the light guide plate 240 into a surface light source, and the color LCD screen 130 provides uniform and stable surface light source support.

[0035] The above-mentioned LCD screen assembly abandons the traditional practice of separately manufacturing the reflective sheet, antenna plate, and magnetic isolation sheet, and also abandons the design that the reflective sheet, antenna plate, and magnetic isolation sheet are connected by bonding, and the overall thickness is generally 0.7mm~1.35mm. As an improvement, the present application directly forms the reflective layer 310 on one side of the antenna plate 320, and directly forms the magnetic isolation layer 330 on the other side of the antenna plate 320, so that the overall thickness value of the reflective layer 310, the antenna plate 320 and the magnetic isolation layer 330 can be controlled, and the thickness of the LCD screen assembly can be made thinner. Specifically, the overall thickness value of the reflective layer 310, the antenna plate 320 and the magnetic isolation layer 330 can be controlled within 0.2mm~0.4mm. When applied to a digital screen or a tablet computer, the overall thickness can be effectively reduced, making the digital screen or tablet computer lighter and more portable. Furthermore, it can save the use of materials and effectively save costs.

[0036] Specifically, the reflective layer 310 is formed on the side of the antenna board 320 facing the backlight module by electroplating, etching, printing or high-gloss lamination. The reflective layer 310 is directly formed on the antenna board 320 by electroplating, etching, printing or high-gloss lamination, etc., without considering the deformation after bonding, and can be made thinner while achieving the preset reflective requirements, further reducing the thickness of the entire LCD screen assembly.

[0037] In the embodiment of the present application, the reflective layer 310 is made of one of PET, PC, and PP, and is attached to one side of the antenna board 320 by electroplating, etching, printing, or high-gloss lamination, which is convenient to process and has a more controllable yield.

[0038] It should be noted that the area of ​​the reflective layer 310 should be larger than the area of ​​the backlight module, so as to increase the reflectivity of the light guide plate 240 and thus effectively improve the light transmission efficiency.

[0039] In some embodiments, the magnetic isolation layer 330 is formed on the side of the antenna board 320 facing away from the backlight module by physical vapor deposition, chemical vapor deposition or electroplating. The material of the magnetic isolation layer 330 is preferably a silicon steel sheet, which is formed on the antenna board 320 by physical vapor deposition, chemical vapor deposition or electroplating to form the magnetic isolation layer 330.

[0040] To ensure the structural stability of the entire LCD screen assembly, the LCD screen assembly further includes a support plate 340, which is disposed on the side of the magnetic isolation layer 330 facing away from the antenna plate 320, and the magnetic isolation layer 330 and the support plate 340 are fixed by bonding. The support plate 340 prevents the LCD screen assembly from deforming. The support plate 340 is made of metal.

[0041] The present application also provides a display device, such as Figure 3 As shown, the display device includes a first shell 410 and a second shell 420, the above-mentioned LCD screen assembly is arranged between the first shell 410 and the second shell 420, and the first shell 410 is hollowed out at a position corresponding to the display area of ​​the LCD screen assembly, and the LCD screen assembly is fixed by the snap-fit ​​connection between the first shell 410 and the second shell 420.

[0042] The display device using the above LCD screen assembly can effectively reduce the overall thickness of the display device, making the display device thinner and more portable, and further, can save the use of materials and effectively save costs. The display device here can be a digital screen or a tablet computer.

[0043] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. An LCD screen assembly, characterized in that: It includes a stacked display module, a backlight module and an interaction module, the display module displays images based on the light generated by the backlight module, the interaction module is used to receive or transmit electromagnetic signals, the interaction module includes an antenna board, a reflective layer is formed on one side of the antenna board facing the backlight module, and a magnetic isolation layer is formed on the other side, the overall thickness of the reflective layer, the antenna board and the magnetic isolation layer is set to 0.2mm~0.4mm.

2. The LCD screen assembly according to claim 1, characterized in that: The reflective layer is formed on a side of the antenna board facing the backlight module by electroplating, etching, printing or high-gloss lamination.

3. The LCD screen assembly according to claim 1, characterized in that: The material of the reflective layer is one of PET, PC and PP.

4. The LCD screen assembly according to claim 1, characterized in that: The area of ​​the reflective layer is larger than that of the backlight module.

5. The LCD screen assembly according to claim 1, characterized in that: The magnetic isolation layer is formed on a side of the antenna board facing away from the backlight module by physical vapor deposition, chemical vapor deposition or electroplating.

6. The LCD screen assembly according to claim 1, characterized in that: The material of the magnetic isolation layer is silicon steel sheet.

7. The LCD screen assembly according to claim 1, characterized in that: The display module comprises a first polarizing film, a filter, a color liquid crystal screen and a second polarizing film which are stacked in sequence, and the second polarizing film is attached to the backlight module.

8. The LCD screen assembly according to claim 1, characterized in that: The backlight module comprises a first diffusion film, a brightness enhancement film, a second diffusion film and a light guide plate which are stacked in sequence, and the light guide plate is attached to the reflective layer.

9. The LCD screen assembly according to claim 1, characterized in that: The LCD screen assembly also includes a support plate, and the support plate is arranged on a side of the magnetic isolation layer facing away from the antenna plate.

10. A display device, characterized in that: The LCD screen assembly comprises any one of claims 1 to 9.

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