Liquid crystal display module capable of reducing chromatic aberration between printing ink area and visual area

Abstract

The utility model discloses a liquid crystal display module capable of reducing chromatic aberration between a printing ink area and a visual area, which comprises a liquid crystal display (LCD) module and a cover plate arranged above the LCD module, a plurality of grooves are formed on the upper surface of the cover plate through etching, a plastic layer is covered above the cover plate, the plastic layer is embedded in the plurality of grooves, and the cover plate is provided with a plurality of grooves. An ink layer is arranged on the lower surface of the cover plate located in the non-visual area, the cover plate and the LCD module are fully attached through optical cement, and the optical cement is gray optical cement. The optical cement is gray optical cement and is thick, so that the viscosity can be ensured by adding a large amount of pigment, the gray level of the optical cement is further improved, an optical film and an attaching step do not need to be added, the gray level of the optical cement is easy to manufacture and grasp, the chromatic aberration between a printing ink area and a visual area of the liquid crystal display module is reduced, and the color difference between the printing ink area and the visual area of the liquid crystal display module is reduced. And the integrated black effect is improved, and the competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display module capable of reducing the color difference between an ink area and a viewing area. Background Art

[0002] Since the all-black car display screen looks more high-end, many car display screens like to use it. However, due to the different refractive indices of the ink area and the visible area of ​​the car display screen, it is difficult to achieve the all-black effect. The existing technology usually adopts a gray or black optical film attached to the surface of the cover plate to improve the grayscale of the viewing area, thereby achieving the effect of improving the all-black effect. However, this method requires adding an optical film, and the grayscale of the optical film is difficult to control. Adding too much pigment to a thin optical film will lead to reduced adhesion performance, which may cause the optical film to fall off. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to reduce the color difference between the ink area and the viewing area of ​​the liquid crystal display module.

[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 module that reduces the color difference between the ink area and the viewing area, comprising an LCD module and a cover plate arranged above the LCD module, wherein the upper surface of the cover plate is formed with a plurality of grooves by etching, the upper part of the cover plate is covered with a plastic layer, and the plastic layer is embedded in the plurality of the grooves, and the lower surface of the cover plate located in the non-visible area is provided with an ink layer, and the cover plate and the LCD module are fully bonded by optical glue, and the optical glue is gray optical glue.

[0006] As a preferred implementation of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the material of the optical glue is carbon powder optical glue.

[0007] As a preferred implementation of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the shape of the groove is square or circular.

[0008] As a preferred implementation of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the groove is a closing groove that is narrow on the outside and wide on the inside.

[0009] As a preferred implementation of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the cross-sectional shape of the groove is an isosceles trapezoid.

[0010] As a preferred embodiment of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the LCD module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

[0011] As a preferred implementation of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.

[0012] As a preferred implementation of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, the buffer glue is silicone glue.

[0013] As a preferred embodiment of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.

[0014] As a preferred embodiment of the liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.

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

[0016] Since the optical glue is gray and thick, adding more pigments can ensure viscosity, thereby improving the grayscale of the optical glue. There is no need to add an optical film or increase the attachment steps. The grayscale of the optical glue is easy to produce and control, thereby reducing the color difference between the ink area and the viewing area of ​​the liquid crystal display module, improving the integrated black effect, and improving the competitiveness of the product. 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 utility model provides a schematic structural diagram of a liquid crystal display module for reducing the color difference between the ink area and the viewing area.

[0019] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the middle cover and the plastic layer.

[0020] Figure 3 for Figure 1 Schematic diagram of the improved structure of the cover plate.

[0021] Figure 4 This is a schematic diagram of the structure of Example 2.

[0022] Description of Figure Numbers:

[0023] LCD module 100; cover plate 1; groove 11; plastic layer 2; ink layer 12; optical glue 3;

[0024] Lower polarizer 4; lower substrate 5; upper substrate 6; upper polarizer 7; protrusion 51; buffer glue 52. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] The utility model provides a liquid crystal display module for reducing the color difference between an ink area and a viewing area, comprising an LCD module and a cover plate arranged above the LCD module, wherein a plurality of grooves are formed on the upper surface of the cover plate by etching, a plastic layer is covered on the upper surface of the cover plate, and the plastic layer is embedded in the plurality of grooves, an ink layer is arranged on the lower surface of the cover plate located in a non-viewing area, and the cover plate and the LCD module are fully bonded by optical glue, and the optical glue is gray optical glue.

[0029] Since the optical glue is gray and thick, adding more pigments can ensure viscosity, thereby improving the grayscale of the optical glue. There is no need to add an optical film or increase the attachment steps. The grayscale of the optical glue is easy to produce and control, thereby reducing the color difference between the ink area and the viewing area of ​​the liquid crystal display module, improving the integrated black effect, and improving the competitiveness of the product.

[0030] 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.

[0031] Example 1

[0032] See also Figures 1 to 3 , a liquid crystal display module for reducing the color difference between the ink area and the viewing area provided by the utility model, comprising an LCD module 100 and a cover plate 1 arranged above the LCD module 100, wherein the upper surface of the cover plate 1 is formed with a plurality of grooves 11 by etching, the upper surface of the cover plate 1 is covered with a plastic layer 2, and the plastic layer 2 is embedded in the plurality of the grooves 11, and the lower surface of the cover plate 1 located in the non-visible area is provided with an ink layer 12, and the cover plate 1 and the LCD module 100 are fully bonded by an optical glue 3, and the optical glue 3 is a gray optical glue 3. Since the optical glue 3 is a gray optical glue 3, the thickness of the optical glue 3 is relatively thick, and the viscosity can be ensured by adding more pigments, thereby improving the gray scale of the optical glue 3, and there is no need to add an optical film or an additional attachment step, and the gray scale of the optical glue 3 is easy to manufacture and master, thereby reducing the color difference between the ink area and the viewing area of ​​the liquid crystal display module, improving the integrated black effect, and improving the competitiveness of the product.

[0033] The upper surface of the cover plate 1 is covered with a plastic layer 2, and a plurality of grooves 11 are formed downwardly on the upper surface of the cover plate 1 by etching, and a portion of the lower surface of the plastic layer 2 is embedded in each groove 11. Since the surface of the groove 11 formed by etching has a certain degree of roughness, the plastic layer 2 can be tightly bonded to the groove 11 to prevent the cover plate 1 and the plastic layer 2 from falling off. Since the upper part of the cover plate 1 is covered with a plastic layer 2, and a plurality of grooves 11 are formed on the upper surface of the cover plate 1 by etching, and the plastic layer 2 can be embedded in the interior of the plurality of grooves 11, the grooves 11 formed by etching make the inner surface of the grooves 11 have a certain degree of roughness, and the surface of the grooves 11 with a certain degree of roughness can improve the bonding force between the grooves 11 and the plastic layer 2, thereby reducing the possibility of separation of the grooves 11 and the plastic layer 2. When the liquid crystal display module collides or falls, the plastic layer 2 on the upper surface of the cover plate 1 can directly withstand the external force, thereby preventing the external force from directly acting on the cover plate 1. Since the plastic layer 2 can absorb most of the energy, the remaining external force is very weak when it acts on the cover plate 1, thereby effectively reducing the risk of the cover plate 1 being broken or damaged; and when the liquid crystal display module is acted upon by an external force, even if the external force is large, it will only damage the plastic layer 2 on the upper surface of the cover plate 1, and will not directly damage the cover plate 1, thereby preventing the cover plate 1 from being damaged and causing the liquid crystal display module to be unable to be used normally, thereby bringing a better user experience to users and improving the anti-fall ability of the liquid crystal display module.

[0034] Furthermore, the material of the optical glue 3 is carbon powder optical glue 3, which is synthesized by mixing the optical glue 3 and carbon powder, and the color of the optical glue 3 can be adjusted by adding carbon powder to the original liquid of the optical glue 3. According to the amount added, the transmittance of the water glue can be controlled. When we need an integrated black effect, we can adjust the appropriate transmittance according to the color of the ink to achieve the integrated black effect.

[0035] Furthermore, the shape of the groove 11 can be square or circular, and the cross-sectional shape of the groove 11 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 11 is an isosceles trapezoid, and the groove 11 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 11 can allow the plastic layer 2 to be tightly embedded in the groove 11, thereby preventing the groove 11 from separating from the plastic layer 2, thereby preventing the cover plate 1 from falling off from the plastic layer 2. The elongated groove 11 can increase the fitting portion between the plastic layer 2 and the groove 11, thereby increasing the fitting strength between the groove 11 and the plastic layer 2.

[0036] Example 2

[0037] See also Figure 4As a further optimization scheme of Example 1, in this embodiment, the LCD module 100 includes a lower polarizer 4, a lower substrate 5, an upper substrate 6 and an upper polarizer 7 which are sequentially stacked from bottom to top. The lower substrate 5 is longer than the upper substrate 6 and extends outward. The edge of the upper surface of the lower substrate 5 extending outward is provided with a protrusion 51. The upper surface of the lower substrate 5 is provided with a buffer glue 52 between the protrusion 51 and the upper substrate 6. The buffer glue 52 abuts against the cover plate 1. Since the edge of the lower substrate 5 is provided with a protrusion 51, the protrusion 51 can limit the flow of the buffer glue 52, so that the shape of the buffer glue 52 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. Thereby preventing the liquid crystal display screen from being unable to be assembled with the casing. Thereby avoiding the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the lower substrate 5, and preventing the abnormal display of the liquid crystal display screen.

[0038] Furthermore, the upper surface of the protrusion 51 is flush with the upper surface of the upper substrate 6 to further limit the flow of the buffer glue 52, so that the shape of the buffer glue 52 is easy to control and there will be no overflow of glue or incomplete glue dispensing.

[0039] Furthermore, the buffer glue 52 is silicone glue.

[0040] Furthermore, a chamfer is provided between the protrusion 51 and the lower substrate 5 so that the buffer glue 52 can more easily fill the space between the protrusion 51 on the upper surface of the lower substrate 5 and the upper substrate 6. The protrusion 51 with a chamfer can allow the buffer glue 52 to flow more smoothly into the space between the protrusion 51 on the upper surface of the lower substrate 5 and the upper substrate 6, making it less likely for bubbles to appear.

[0041] Furthermore, the upper surface of the lower substrate 5 and the side surfaces of the protrusions 51 are rough surfaces to improve the fixing effect of the buffer glue 52 .

[0042] Furthermore, the rough surface is a frosted surface or a diamond knurled surface to further improve the fixing effect of the buffer glue 52 .

[0043] 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.

[0044] 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 module for reducing the color difference between the ink area and the viewing area, characterized in that: It includes an LCD module and a cover plate arranged above the LCD module, wherein a plurality of grooves are formed on the upper surface of the cover plate by etching, a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves, an ink layer is arranged on the lower surface of the cover plate located in a non-visible area, and the cover plate and the LCD module are fully bonded by optical glue, and the optical glue is gray optical glue.

2. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 1, characterized in that: The material of the optical adhesive is carbon powder optical adhesive.

3. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 1, characterized in that: The shape of the groove is square or circular.

4. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 1, characterized in that: The groove is a closing groove which is narrow outside and wide inside.

5. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 4, characterized in that: The cross-sectional shape of the groove is an isosceles trapezoid.

6. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 1, characterized in that: The LCD module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

7. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 6, characterized in that: An upper surface of the protrusion is flush with an upper surface of the upper substrate.

8. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 6, characterized in that: The buffer glue is silicone glue.

9. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 6, characterized in that: A rounded corner is arranged between the protrusion and the lower substrate.

10. The liquid crystal display module for reducing the color difference between the ink area and the viewing area according to claim 6, characterized in that: A rounded corner is arranged between the protrusion and the lower substrate.

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