Liquid crystal display screen

Abstract

The utility model discloses a liquid crystal display screen which comprises a backlight module, a lower polaroid, a liquid crystal box, an upper polaroid and a cover plate, the lower polaroid, the liquid crystal box, the upper polaroid and the cover plate are sequentially arranged above the backlight module in a stacked mode from bottom to top, a touch film key is pasted and fixed on the lower surface of the cover plate, the upper polaroid is fully attached to the cover plate through first optical cement, and the lower polaroid is attached to the cover plate through second optical cement. The first optical cement is provided with a receding part avoiding the touch control film keys, and the lower polaroid and the upper polaroid are each provided with a hollowed-out part avoiding the touch control film keys. Due to the fact that the touch control thin film keys are pasted and fixed to the lower surface of the cover plate, the cover plate can achieve the touch control key function, the function is added for the extra area, and waste is reduced. The touch film key and the display module share a backlight source, and a key backlight source of a client side is omitted.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen. Background Art

[0002] The size of some display module products is inconsistent with customer needs. Customers can use the company's existing large-size display modules, and the actual display area can be set through software, which can save the cost of opening new molds. In this case, because the actual size of the display module is larger than the display size, the extra area can be used to add other functions to reduce waste. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to add other functions to the extra area to reduce waste.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen, which includes a backlight module and a lower polarizer, a liquid crystal box, an upper polarizer and a cover plate which are stacked in sequence from bottom to top above the backlight module, a touch film button is pasted and fixed to the lower surface of the cover plate, the upper polarizer and the cover plate are fully bonded to each other through a first optical adhesive, the first optical adhesive is provided with a avoiding portion avoiding the touch film button, and the lower polarizer and the upper polarizer are both provided with a hollowed-out portion avoiding the touch film button.

[0006] As a preferred implementation of the liquid crystal display screen provided by the utility model, the touch film key is adhered and fixed to the cover plate by transparent double-sided adhesive or second optical adhesive.

[0007] As a preferred implementation of the liquid crystal display screen provided by the utility model, the combined height of the touch film key and the transparent double-sided adhesive or the second optical adhesive is 0.15 mm.

[0008] As a preferred implementation of the liquid crystal display screen provided by the utility model, the thickness of the first optical adhesive is 0.2 mm.

[0009] As a preferred implementation of the liquid crystal display screen provided by the utility model, a ring groove is opened on the lower surface of the cover plate, the ring groove is located in the non-visible area, and the first optical adhesive is arranged in the area enclosed by the ring groove.

[0010] As a preferred implementation of the liquid crystal display screen provided by the utility model, the cross-sectional shape of the annular groove is a trapezoid.

[0011] As a preferred implementation of the liquid crystal display screen provided by the utility model, the cross-sectional shape of the annular groove is an isosceles trapezoid.

[0012] As a preferred implementation of the liquid crystal display screen provided by the utility model, the annular groove is an open groove which is wide outside and narrow inside.

[0013] As a preferred implementation of the liquid crystal display screen provided by the utility model, the depth of the annular groove is 0.1 mm.

[0014] As a preferred embodiment of the liquid crystal display screen provided by the utility model, the inner surface of the annular groove is provided with a surface treatment layer for improving the surface roughness.

[0015] The utility model has the following beneficial effects:

[0016] Since the touch film key is fixed on the lower surface of the cover plate, the cover plate can realize the touch key function, adding functions to the extra area to reduce waste; and the first optical adhesive is provided with a avoiding portion to avoid the touch film key to avoid affecting the full fit, and the lower polarizer and the upper polarizer are both provided with a hollowing portion to avoid the touch film key, so that the light emitted by the backlight module can pass through, and the upper and lower polarizers are only hollowed out in the touch film key area, which has no effect on the protection of the liquid crystal box. After the upper and lower polarizers are hollowed out, the upper and lower polarizers will not affect the luminous flux incident from the backlight source. The touch film key and the display module share the backlight source, eliminating the key backlight source of the client; the backlight module emits light evenly, and the touch film key area also eliminates diffusion materials such as diffusion film or diffusion ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The present invention is a schematic structural diagram of a liquid crystal display screen provided by the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram of the improved structure at the middle cover.

[0020] Description of Figure Numbers:

[0021] Backlight module 1; lower polarizer 2; liquid crystal box 3; upper polarizer 4; cover plate 5; touch film key 6; first optical adhesive 7; transparent double-sided adhesive or second optical adhesive 8; annular groove 51. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0024] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] The utility model provides a liquid crystal display screen, which comprises a backlight module and a lower polarizer, a liquid crystal box, an upper polarizer and a cover plate which are sequentially stacked and arranged above the backlight module from bottom to top, a touch film button is pasted and fixed to the lower surface of the cover plate, the upper polarizer and the cover plate are fully bonded to each other through a first optical adhesive, the first optical adhesive is provided with a avoiding portion avoiding the touch film button, and the lower polarizer and the upper polarizer are both provided with a hollowing portion avoiding the touch film button.

[0026] Since the touch film key is fixed on the lower surface of the cover plate, the cover plate can realize the touch key function, adding functions to the extra area to reduce waste; and the first optical adhesive is provided with a avoiding portion to avoid the touch film key to avoid affecting the full fit, and the lower polarizer and the upper polarizer are both provided with a hollowing portion to avoid the touch film key, so that the light emitted by the backlight module can pass through, and the upper and lower polarizers are only hollowed out in the touch film key area, which has no effect on the protection of the liquid crystal box. After the upper and lower polarizers are hollowed out, the upper and lower polarizers will not affect the luminous flux incident from the backlight source. The touch film key and the display module share the backlight source, eliminating the key backlight source of the client; the backlight module emits light evenly, and the touch film key area also eliminates diffusion materials such as diffusion film or diffusion ink.

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0028] See also Figure 1 , is a liquid crystal display screen provided by the utility model, which includes a backlight module 1 and a lower polarizer 2, a liquid crystal box 3, an upper polarizer 4 and a cover plate 5 which are sequentially stacked and arranged above the backlight module 1 from bottom to top, a touch film button 6 is pasted and fixed to the lower surface of the cover plate 5, the upper polarizer 4 and the cover plate 5 are fully bonded to each other through a first optical adhesive 7, the first optical adhesive 7 is provided with a avoiding portion avoiding the touch film button 6, and the lower polarizer 2 and the upper polarizer 4 are both provided with a hollowing portion avoiding the touch film button 6. Since the touch film key 6 is fixedly attached to the lower surface of the cover plate 5, the cover plate 5 can realize the touch key function, adding functions to the extra area to reduce waste; and the first optical adhesive 7 is provided with a avoiding portion to avoid the touch film key 6 to avoid affecting the full fit, and the lower polarizer 2 and the upper polarizer 4 are both provided with a hollowing portion to avoid the touch film key 6, so that the light emitted by the backlight module 1 can pass through, and the upper and lower polarizers 2 are only hollowed out in the touch film key 6 area, which has no effect on the protection of the liquid crystal box 3. After the upper and lower polarizers 2 are hollowed out, the upper and lower polarizers 2 will not affect the luminous flux incident from the backlight source. The touch film key 6 shares the backlight source with the display module, eliminating the key backlight source of the client; the backlight module 1 emits light evenly, and the touch film key 6 area also eliminates diffusion materials such as diffusion film or diffusion ink.

[0029] Furthermore, the touch film key 6 is adhered and fixed to the cover plate 5 by means of a transparent double-sided adhesive or a second optical adhesive 8 .

[0030] Furthermore, the combined height of the touch film button 6 and the transparent double-sided adhesive or the second optical adhesive 8 is 0.15 mm, the thickness of the first optical adhesive 7 is 0.2 mm, and the thickness of the first optical adhesive 7 is greater than the combined height of the touch film button 6 and the transparent double-sided adhesive or the second optical adhesive 8. After the first optical adhesive 7 is hollowed out at the position corresponding to the touch film button 6, it will not affect the full fit of the module.

[0031] See also Figure 2 As a further optimization scheme of Example 1, in this embodiment, an annular groove 51 is opened on the lower surface of the cover plate 5, and the annular groove 51 is located in the non-visible area. The first optical adhesive 7 is coated in the area enclosed by the annular groove 51, that is, the annular groove 51 is arranged around the first optical adhesive 7. When the first optical adhesive 7 is coated, the excess first optical adhesive 7 can overflow into the annular groove 51, so as to prevent the first optical adhesive 7 from overflowing to other areas.

[0032] Furthermore, the cross-sectional shape of the annular groove 51 is a trapezoid. More preferably, the cross-sectional shape of the annular groove 51 is an isosceles trapezoid. The annular groove 51 is an open groove that is wide on the outside and narrow on the inside, so that the first optical adhesive 7 can stay in the annular groove 51 after entering the annular groove 51, so as to avoid the first optical adhesive 7 overflowing to other areas.

[0033] Furthermore, the depth of the annular groove 51 is 0.1 mm, so as to provide sufficient overflow space for the first optical adhesive 7 to prevent the first optical adhesive 7 from overflowing to other areas.

[0034] Furthermore, the inner surface of the annular groove 51 is provided with a surface treatment layer for improving the surface roughness, so that the first optical adhesive 7 can be better adhered to the annular groove 51 and prevent the first optical adhesive 7 from overflowing to other areas.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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 the present invention can be understood according to specific circumstances.

[0036] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display screen, characterized in that: It includes a backlight module and a lower polarizer, a liquid crystal box, an upper polarizer and a cover plate which are stacked in sequence from bottom to top on the backlight module. A touch film button is pasted and fixed on the lower surface of the cover plate. The upper polarizer and the cover plate are fully bonded to each other through a first optical adhesive. The first optical adhesive is provided with a avoiding portion avoiding the touch film button. Both the lower polarizer and the upper polarizer are provided with a hollowing portion avoiding the touch film button.

2. The liquid crystal display screen according to claim 1, characterized in that: The touch film key is adhered and fixed to the cover plate by transparent double-sided adhesive or second optical adhesive.

3. The liquid crystal display screen according to claim 2, characterized in that: The combined height of the touch film key and the transparent double-sided adhesive or the second optical adhesive is 0.15 mm.

4. The liquid crystal display screen according to claim 1, characterized in that: The thickness of the first optical adhesive is 0.2 mm.

5. The liquid crystal display screen according to claim 1, characterized in that: An annular groove is formed on the lower surface of the cover plate, the annular groove is located in the non-visible area, and the first optical adhesive is arranged in the area enclosed by the annular groove.

6. The liquid crystal display screen according to claim 5, characterized in that: The cross-sectional shape of the annular groove is a trapezoid.

7. The liquid crystal display screen according to claim 6, characterized in that: The cross-sectional shape of the annular groove is an isosceles trapezoid.

8. The liquid crystal display screen according to claim 5, characterized in that: The annular groove is an open groove which is wide outside and narrow inside.

9. The liquid crystal display screen according to claim 5, characterized in that: The depth of the annular groove is 0.1 mm.

10. The liquid crystal display screen according to claim 5, characterized in that: The inner surface of the annular groove is provided with a surface treatment layer for improving the surface roughness.

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