Liquid crystal display screen with cover plate provided with steps

Abstract

The utility model discloses a liquid crystal display screen with a cover plate provided with steps, which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid and the cover plate which are sequentially overlapped from bottom to top, the cover plate comprises step glass and boss glass, the step glass is arranged above the upper polaroid, the boss glass is arranged above the lower polaroid, and the boss glass is arranged above the lower polaroid. The boss glass is arranged above the step glass, optical cement is arranged between the step glass and the boss glass, and the step glass and the boss glass are arranged in a staggered mode to form a step. The cover plate comprises the two pieces of glass, namely the step glass and the boss glass, the step glass and the boss glass are arranged in a staggered mode to form the step, and the step glass and the boss glass are pasted and fixed through the optical cement, so that the cost of manufacturing two pieces of common glass and then fixing the two pieces of common glass through the optical cement is far lower than that of manufacturing one piece of cover plate glass with the step; the production cost can be effectively reduced, 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 screen with a cover plate having steps. Background Art

[0002] At present, due to the needs of product assembly design, the surface glass protection cover is often designed as a boss type. Some products require a glass cover and a boss with a large depth. It is too difficult to directly CNC mold a piece of glass, and the yield and efficiency are relatively low. This directly leads to a significant increase in the production cost of LCD screens and reduces the competitiveness of products. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design a cover plate with steps with high yield and efficiency, so as to reduce production costs and improve product competitiveness.

[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 with a cover plate with steps, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence from bottom to top, the cover plate includes a step glass and a convex glass, the step glass is arranged above the upper polarizer, the convex glass is arranged above the step glass, optical glue is arranged between the step glass and the convex glass, and the step glass and the convex glass are staggered to form steps.

[0006] As a preferred implementation of the liquid crystal display screen with a cover plate having steps provided by the utility model, the step glass and the boss glass have different widths.

[0007] As a preferred implementation of the liquid crystal display screen with a cover plate having steps provided by the utility model, the width of the step glass is greater than the width of the boss glass.

[0008] As a preferred implementation of the liquid crystal display screen with a cover plate having steps provided by the utility model, the optical glue is a colorless and transparent optical glue.

[0009] As a preferred embodiment of the liquid crystal display screen with a cover plate with a step provided by the utility model, 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, and 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.

[0010] As a preferred implementation of the liquid crystal display screen with a cover plate having a step provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.

[0011] As a preferred implementation of the liquid crystal display screen with a cover plate having a step provided by the utility model, the buffer glue is silicone glue.

[0012] As a preferred implementation of the liquid crystal display screen with a cover plate step provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.

[0013] As a preferred implementation of the liquid crystal display screen with a cover plate having steps provided by the utility model, the upper surface of the lower substrate and the side surface of the protrusion are rough surfaces.

[0014] As a preferred implementation of the liquid crystal display screen with a cover plate having steps provided by the utility model, the rough surface is a frosted surface or a diamond knurling.

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

[0016] Since the cover plate includes two pieces of glass, namely the step glass and the boss glass, the step glass and the boss glass are staggered to form a step, and the step glass and the boss glass are fixed by optical glue, the cost of making two pieces of ordinary glass and then fixing them by optical glue is much lower than making a cover glass with a step, which can effectively reduce production costs and improve product competitiveness. 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 structural schematic diagram of a liquid crystal display screen with a cover plate having steps.

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

[0020] Figure 3 This is a schematic diagram of the structure of Example 2.

[0021] Description of Figure Numbers:

[0022] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; cover plate 5; step glass 51; boss glass 52; optical adhesive 53;

[0023] Protrusion 21; Buffer rubber 6. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] The utility model provides a liquid crystal display screen with a cover plate with steps, which comprises a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, the cover plate comprises a step glass and a convex glass, the step glass is arranged above the upper polarizer, the convex glass is arranged above the step glass, optical glue is arranged between the step glass and the convex glass, and the step glass and the convex glass are staggered to form a step.

[0028] Since the cover plate includes two pieces of glass, namely the step glass and the boss glass, the step glass and the boss glass are staggered to form a step, and the step glass and the boss glass are fixed by optical glue, the cost of making two pieces of ordinary glass and then fixing them by optical glue is much lower than making a cover glass with a step, which can effectively reduce production costs and improve product competitiveness.

[0029] 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.

[0030] Example 1

[0031] See also Figure 1 and Figure 2 , a liquid crystal display screen with a cover plate 5 having a step provided by the utility model, comprising a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4 and a cover plate 5 which are sequentially stacked from bottom to top, the cover plate 5 comprising a step glass 51 and a boss glass 52, the step glass 51 being arranged above the upper polarizer 4, the boss glass 52 being arranged above the step glass 51, an optical glue 53 being arranged between the step glass 51 and the boss glass 52, the step glass 51 and the boss glass 52 being staggered to form a step. Since the cover plate 5 comprises two pieces of glass, namely the step glass 51 and the boss glass 52, the step glass 51 and the boss glass 52 are staggered to form a step, and the step glass 51 and the boss glass 52 are glued and fixed by the optical glue 53, the cost of making two pieces of ordinary glass and then fixing them by the optical glue 53 is much lower than that of making a cover plate 5 glass with a step, which can effectively reduce the production cost and improve the competitiveness of the product.

[0032] Furthermore, the staggered arrangement of the step glass 51 and the boss glass 52 referred to in the present invention may mean that the step glass 51 and the boss glass 52 are respectively arranged at two different positions; or the center points of the step glass 51 and the boss glass 52 are at the same position, but the widths of the step glass 51 and the boss glass 52 are different.

[0033] Further, the center positions of the step glass 51 and the boss glass 52 are the same, and the width of the step glass 51 is greater than the width of the boss glass 52. In other embodiments, the width of the step glass 51 may be less than the width of the boss glass 52.

[0034] Furthermore, the optical adhesive 53 is colorless and transparent optical adhesive 53 .

[0035] Example 2

[0036] See also Figure 3As a further optimization scheme of Example 1, in this embodiment, the lower substrate 2 is longer than the upper substrate 3 and extends outward, and the edge of the upper surface of the lower substrate 2 extending outward is provided with a protrusion 21, and the upper surface of the lower substrate 2 is provided with a buffer glue 6 between the protrusion 21 and the upper substrate 3, and the buffer glue 6 abuts against the cover plate 5. Since the edge of the lower substrate 2 is provided with a protrusion 21, the protrusion 21 can limit the flow of the buffer glue 6, so that the shape of the buffer glue 6 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. Thereby preventing the LCD screen from being unable to be assembled with the casing. In addition, the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the lower substrate 2 is avoided, and the LCD screen is prevented from displaying abnormally.

[0037] Furthermore, the upper surface of the protrusion 21 is flush with the upper surface of the upper substrate 3 to further limit the flow of the buffer glue 6, so that the shape of the buffer glue 6 is easy to control without overflowing glue or incomplete glue dispensing.

[0038] Furthermore, the buffer glue 6 is silicone glue.

[0039] Furthermore, a chamfer is provided between the protrusion 21 and the lower substrate 2 so that the buffer glue 6 can more easily fill the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3. The protrusion 21 with a chamfer can make the buffer glue 6 flow more smoothly into the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3 so that bubbles are less likely to appear.

[0040] Furthermore, the upper surface of the lower substrate 2 and the side surfaces of the protrusions 21 are rough surfaces to improve the fixing effect of the buffer glue 6 .

[0041] Furthermore, the rough surface is a frosted surface or a diamond knurling surface to further improve the fixing effect of the buffer glue 6.

[0042] 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.

[0043] 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 with a cover plate having a step, characterized in that: It includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence from bottom to top. The cover plate includes a step glass and a convex glass. The step glass is arranged above the upper polarizer, and the convex glass is arranged above the step glass. Optical glue is arranged between the step glass and the convex glass. The step glass and the convex glass are staggered to form a step.

2. The LCD display with a cover plate having a step according to claim 1, characterized in that: The step glass and the boss glass have different widths.

3. The LCD display with a cover plate having a step according to claim 2, characterized in that: The width of the step glass is greater than the width of the boss glass.

4. The LCD display with a cover plate having a step according to claim 1, characterized in that: The optical glue is colorless and transparent.

5. The LCD display with a cover plate having a step according to claim 1, characterized in that: The lower substrate is longer than the upper substrate and extends outwards, a protrusion is arranged on the edge of the upper surface of the lower substrate extending outwards, a buffer glue is arranged on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

6. The LCD display with a cover plate having a step according to claim 5, characterized in that: An upper surface of the protrusion is flush with an upper surface of the upper substrate.

7. The liquid crystal display screen with a cover plate having a step according to claim 5, characterized in that: The buffer glue is silicone glue.

8. The LCD display with a stepped cover according to claim 5, characterized in that: A rounded corner is arranged between the protrusion and the lower substrate.

9. The liquid crystal display screen with a cover plate having a step according to claim 5, characterized in that: The upper surface of the lower substrate and the side surfaces of the protrusion are rough surfaces.

10. The liquid crystal display screen with a cover plate having a step according to claim 9, characterized in that: The rough surface is a frosted surface or a diamond knurled surface.

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