Combined LCD module

Abstract

The utility model discloses a combined LCD (Liquid Crystal Display) module, which comprises a protective cover plate with a plurality of display areas; the liquid crystal display screens are attached to the lower surface of the protective cover plate, and one liquid crystal display screen corresponds to one display area; the small polaroids are attached to the lower surfaces of the corresponding liquid crystal display screens respectively, and one small polaroid corresponds to one liquid crystal display screen; and the large polaroid is attached to the upper surface of the protective cover plate and covers all the display areas. According to the combined LCD module, the attaching process can be reduced, and the display consistency can be improved.

Description

Technical Field

[0001] The utility model relates to display technology, in particular to a combined LCD module. Background Art

[0002] In some industrial control equipment, one industrial control host needs to control multiple production equipment at the same time. This requires setting up multiple LCD screens on the industrial control host to display the control interfaces of different production equipment respectively. Multiple LCD screens share a protective cover.

[0003] For example, a Chinese patent with patent number CN202320636041.4 discloses a display device, including: a display component and a shell component; the display component includes a first display panel, a second display panel and a third display panel, the first display panel and the third display panel are both TFT liquid crystal screens or AMOLED screens, the second display panel is arranged between the first display panel and the third display panel, and the first display panel, the second display panel and the third display panel are arranged in parallel; the shell component includes a cover plate and a protective shell, three independent mounting grooves are arranged in the protective shell, the cover plate and the mounting grooves respectively form three independent accommodating cavities, and the first display panel, the second display panel and the third display panel are respectively arranged in the three independent accommodating cavities.

[0004] However, the upper and lower surfaces of the liquid crystal display screen need to be respectively bonded with an upper polarizer and a lower polarizer. In the prior art, each liquid crystal display screen is first bonded with the upper polarizer and the lower polarizer respectively, and then all the liquid crystal displays are bonded to the protective cover plate. There are too many bonding steps, which affects the production efficiency. Moreover, the upper polarizers of different liquid crystal displays cannot be completely consistent, and the display effects will be different. Utility Model Content

[0005] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a combined LCD module, which can reduce the lamination process and improve the display consistency.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] A combined LCD module, comprising:

[0008] A protective cover having multiple display areas;

[0009] A plurality of liquid crystal display screens are attached to the lower surface of the protective cover plate, and one liquid crystal display screen corresponds to one display area;

[0010] A plurality of small polarizers are respectively attached to the lower surfaces of corresponding liquid crystal display screens, and one small polarizer corresponds to one liquid crystal display screen;

[0011] A large polarizer is attached to the upper surface of the protective cover and covers the entire display area.

[0012] Furthermore, the protection cover plate also has a non-display area, which is located on the periphery of each display area and separates each display area.

[0013] Furthermore, the combined LCD module further includes a light shielding layer, which is disposed on the lower surface of the protection cover plate, and corresponds to the non-display area.

[0014] Furthermore, the light-shielding layer is a black ink layer.

[0015] Furthermore, the large polarizer also covers the non-display area.

[0016] Furthermore, the combined LCD module further includes a first large adhesive layer, and the large polarizer is adhered to the upper surface of the protective cover plate through the first large adhesive layer.

[0017] Furthermore, the combined LCD module also includes a second large adhesive layer, and each liquid crystal display screen is adhered to the lower surface of the protective cover plate through the second large adhesive layer.

[0018] Furthermore, the combined LCD module also includes a plurality of small adhesive layers, and each small polarizer is respectively adhered to the lower surface of the corresponding liquid crystal display screen through the corresponding small adhesive layer.

[0019] Furthermore, the liquid crystal display screen includes an upper substrate, a liquid crystal material layer and a lower substrate. The upper substrate and the lower substrate are relatively fitted and sealed. A sealed cavity is provided between the upper substrate and the lower substrate, and the liquid crystal material layer is filled in the sealed cavity.

[0020] Furthermore, the combined LCD module also includes a plurality of backlight sources, which are respectively attached to the lower surfaces of the corresponding lower polarizers, and one backlight source corresponds to one liquid crystal display screen.

[0021] The utility model has the following beneficial effects: the combined LCD module of the utility model integrates a plurality of liquid crystal display screens on the same protective cover plate, a corresponding small polarizing film is bonded to the lower surface of each liquid crystal display screen as the lower polarizing film of each liquid crystal display screen, and the large polarizing film is bonded to the upper surface of the protective cover plate as the upper polarizing film common to all liquid crystal display screens, and the upper polarizing film only needs to be bonded once, which greatly reduces the bonding process of the upper polarizing film; at the same time, since all liquid crystal display screens share the large polarizing film as the upper polarizing film, the display difference caused by the difference of the upper polarizing film can be avoided, and the display consistency is improved; moreover, the large polarizing film bonded to the upper surface of the protective cover plate can reduce the reflectivity of the protective cover plate to ambient light, and play an anti-glare effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a stacking structure diagram of the combined LCD module provided by the utility model.

[0023] Figure 2 This is a front schematic diagram of the combined LCD module provided by the utility model.

[0024] Figure 3 This is a stacking structure diagram of a liquid crystal display screen in a combined LCD module provided by the utility model. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, 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 having 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 limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 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 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 one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0029] like Figure 1 and 2 As shown, a combined LCD module includes:

[0030] A protective cover 100 having a plurality of display areas 110;

[0031] A plurality of liquid crystal display screens 200 are attached to the lower surface of the protective cover plate 100 , and one liquid crystal display screen 200 corresponds to one display area 110 ;

[0032] A plurality of small polarizers 300 are respectively attached to the lower surfaces of the corresponding liquid crystal display screens 200, and one small polarizer 300 corresponds to one liquid crystal display screen 200;

[0033] The large polarizer 400 is attached to the upper surface of the protection cover 100 and covers the entire display area 110 .

[0034] The combined LCD module of the utility model integrates a plurality of liquid crystal display screens 200 on the same protective cover plate 100, and a corresponding small polarizer 300 is bonded to the lower surface of each liquid crystal display screen 200 as the lower polarizer of each liquid crystal display screen 200, and the large polarizer 400 is bonded to the upper surface of the protective cover plate 100 as the upper polarizer common to all liquid crystal display screens 200, and the upper polarizer only needs to be bonded once, which greatly reduces the bonding process of the upper polarizer; at the same time, since all liquid crystal display screens 200 share the large polarizer 400 as the upper polarizer, the display difference caused by the difference of the upper polarizer can be avoided, and the display consistency is improved; moreover, the large polarizer 400 bonded to the upper surface of the protective cover plate 100 can reduce the reflectivity of the protective cover plate 100 to ambient light, and play an anti-glare effect.

[0035] When preparing the combined LCD module, each small polarizer 300 is firstly attached to the lower surface of the corresponding liquid crystal display screen 200, as the lower polarizer of each liquid crystal display screen 200, and then each liquid crystal display screen 200 is attached to the lower surface of the protective cover plate 100, and finally the large polarizer 400 is attached to the upper surface of the protective cover plate 100, as the upper polarizer common to all liquid crystal display screens 200.

[0036] The protective cover 100 further has a non-display area 120 , which is located on the periphery of each display area 110 and separates each display area 110 ; the large polarizer 400 also covers the non-display area 120 .

[0037] The combined LCD module further includes a light shielding layer 500, which is disposed on the lower surface of the protective cover plate 100 and corresponds to the non-display area 120. The light shielding layer 500 mainly defines the range of each display area 110 and shields the non-display area 120 to prevent the display light of each liquid crystal display screen 200 from leaking from the non-display area 120.

[0038] In this embodiment, the light shielding layer 500 is a black ink layer. When the light shielding layer 500 is a black ink layer, the large polarizer 400 attached to the upper surface of the protective cover 100 can also reduce the color difference between the display area 110 and the non-display area 120 of the protective cover 100 in the screen-off state, because the large polarizer 400 can make the color of the display area 110 of the protective cover 100 darker and closer to the ink color of the black ink layer in the screen-off state after reducing the reflectivity of the protective cover 100 to ambient light.

[0039] The combined LCD module also includes a first large adhesive layer 600, a second large adhesive layer 700 and a plurality of small adhesive layers 800. The large polarizer 400 is bonded to the upper surface of the protective cover plate 100 through the first large adhesive layer 600, each liquid crystal display screen 200 is bonded to the lower surface of the protective cover plate 100 through the second large adhesive layer 700, and each small polarizer 300 is bonded to the lower surface of the corresponding liquid crystal display screen 200 through the corresponding small adhesive layer 800.

[0040] In this embodiment, the first large adhesive layer 600, the second large adhesive layer 700 and each small adhesive layer 800 are all OCA adhesive. OCA adhesive, which stands for Optically Clear Adhesive, is a special adhesive specially used for bonding transparent optical components. It is a kind of pressure-sensitive adhesive with high light transmittance (total light transmittance>99%), high adhesion, strong weather resistance, UV resistance and other characteristics. After curing, it has extremely high bonding strength and low elastic modulus of the adhesive layer, so that it shrinks and deforms less after curing, can effectively reduce the reflection loss of light and improve the contrast of the image.

[0041] like Figure 3 As shown, the liquid crystal display screen 200 includes an upper substrate 210, a liquid crystal material layer 220, a lower substrate 230, an RGB color film and a TFT circuit layer. The upper substrate 210 and the lower substrate 230 are relatively fitted and sealed. There is a sealed cavity between the upper substrate 210 and the lower substrate 230, and the liquid crystal material layer 220 is filled in the sealed cavity.

[0042] In this embodiment, the upper substrate 210 is a color filter substrate, and an RGB color filter is disposed on its lower surface. The upper substrate 210 is an array substrate, and a TFT array circuit is disposed on its upper surface.

[0043] Preferably, the combined LCD module further comprises a plurality of backlight sources (not shown in the figure), which are respectively attached to the lower surface of the corresponding lower polarizer, and one backlight source corresponds to one liquid crystal display screen 200. Each backlight source is used to provide display backlight for the corresponding liquid crystal display panel.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A combined LCD module, characterized in that: include: A protective cover having multiple display areas; A plurality of liquid crystal display screens are attached to the lower surface of the protective cover plate, and one liquid crystal display screen corresponds to one display area; A plurality of small polarizers are respectively attached to the lower surfaces of corresponding liquid crystal display screens, and one small polarizer corresponds to one liquid crystal display screen; A large polarizing film is attached to the upper surface of the protective cover plate and covers the entire display area.

2. The combined LCD module according to claim 1, characterized in that: The protection cover plate also has a non-display area, which is located on the periphery of each display area and separates each display area.

3. The combined LCD module according to claim 2, characterized in that: The combined LCD module further includes a light shielding layer, which is disposed on the lower surface of the protection cover plate and corresponds to the non-display area.

4. The combined LCD module according to claim 3, characterized in that: The light-shielding layer is a black ink layer.

5. The combined LCD module according to any one of claims 2 to 4, characterized in that: The large polarizer also covers the non-display area.

6. The combined LCD module according to claim 1, characterized in that: The combined LCD module further includes a first large adhesive layer, and the large polarizer is attached to the upper surface of the protective cover plate through the first large adhesive layer.

7. The combined LCD module according to claim 1, characterized in that: The combined LCD module further comprises a second large adhesive layer, and each liquid crystal display screen is adhered to the lower surface of the protective cover plate through the second large adhesive layer.

8. The combined LCD module according to claim 1, characterized in that: The combined LCD module also includes a plurality of small adhesive layers, and each small polarizer is respectively attached to the lower surface of the corresponding liquid crystal display screen through the corresponding small adhesive layer.

9. The combined LCD module according to claim 1, characterized in that: The liquid crystal display screen comprises an upper substrate, a liquid crystal material layer and a lower substrate. The upper substrate and the lower substrate are relatively fitted and sealed. A sealed cavity is provided between the upper substrate and the lower substrate. The liquid crystal material layer is filled in the sealed cavity.

10. The combined LCD module according to claim 1, characterized in that: The combined LCD module also includes a plurality of backlight sources, which are respectively attached to the lower surfaces of the corresponding lower polarizers, and one backlight source corresponds to one liquid crystal display screen.

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