Novel auxiliary mechanism for attaching high-contrast OCA (optical clear adhesive) to VA (vertical alignment)

Abstract

The utility model relates to the field of display accessories, and discloses a novel high-contrast OCA (Optical Clear Adhesive) laminating VA (Vertical Alignment) auxiliary mechanism, which comprises a backlight source, an FPC (Flexible Printed Circuit) is arranged on the front surface of the backlight source, a COGIC (Chip On Glass Integrated Circuit) is arranged on the front surface of the FPC, an LCD (Liquid Crystal Display) is arranged on the front surface of the backlight source, an OCA double-sided adhesive tape is adhered on the front surface of the LCD, and the OCA double-sided adhesive tape is adhered on the front surface of the backlight source. A glass cover plate is adhered to the front surface of the OCA double-faced adhesive tape, a protection assembly is arranged on the outer wall of the OCA double-faced adhesive tape and comprises silicone oil paper, and a crescent groove is formed in the upper surface of the silicone oil paper. According to the utility model, the LCD and the glass cover plate are adhered through the OCA double-sided adhesive tape, the LCD is a high-contrast VA-mode LCD, the glass cover plate is a black silk-screen glass cover plate with 50% transmittance, and under the cooperation of the LCD and the glass cover plate, a high-brightness backlight source is matched, so that an integrated black display effect can be achieved; and the device better meets the aesthetic requirements of the market.

Description

TECHNICAL FIELD

[0001] The utility model relates to display accessories field especially relates to a novel high contrast OCA lamination VA auxiliary mechanism. BACKGROUND

[0002] In view of the current market diversification, aesthetic demand, the requirement of liquid crystal display screen also gradually increases, in the aesthetic aspect, the display effect of integral black is one of more and more common requirements. Black and white liquid crystal display module and glass cover plate adopt OCA lamination, and it is a relatively common structure of black and white liquid crystal display module, and its process technology is relatively mature.

[0003] But because the base color of black and white module and the black ink of glass cover plate are difficult to be consistent in chroma, this leads to that black and white liquid crystal display module is difficult to achieve the display effect of integral black by using conventional technical solutions.

[0004] And when using OCA to bond black and white liquid crystal display module and glass cover plate, the silicon oil paper on the surface of OCA needs to be torn open, and the traditional silicon oil paper is easy to cause OCA to be raised during the tearing process, thereby affecting the flatness of the subsequent bonding completion.

[0005] Therefore, a novel high contrast OCA lamination VA auxiliary mechanism is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] In order to make up for the above shortcomings, the utility model provides a novel high contrast OCA lamination VA auxiliary mechanism, which aims at improving the problem that the base color of black and white module and the black ink of glass cover plate are difficult to be consistent in chroma, thereby leading to the difficulty in achieving the display effect of integral black.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel high contrast OCA lamination VA auxiliary mechanism, comprising a backlight, a FPC is installed on the front surface of the backlight, a COGIC is installed on the front surface of the FPC, an LCD liquid crystal display is arranged on the front surface of the backlight, an OCA double-sided adhesive tape is bonded on the front surface of the LCD liquid crystal display, a glass cover plate is bonded on the front surface of the OCA double-sided adhesive tape, and a protection assembly is arranged on the outer wall of the OCA double-sided adhesive tape.

[0008] As a further description of the above technical scheme:

[0009] The protection assembly comprises a silicon oil paper, a crescent groove is formed in the upper surface of the silicon oil paper, a connecting block is fixedly connected to one end of the upper surface of the silicon oil paper, a positioning block is fixedly connected to the other end of the upper surface of the silicon oil paper, an antiskid rubber strip is fixedly connected to the upper surface of the connecting block, a protruding block is fixedly connected to the upper surface of the positioning block, and an air slot is formed in the right surface of the connecting block.

[0010] As a further description of the above technical solutions:

[0011] The COGIC is installed on the rear surface of the LCD liquid crystal display, and the front surface of the LCD liquid crystal display is provided with an annular protrusion.

[0012] As a further description of the above technical solutions:

[0013] The rear surface of the OCA double-sided adhesive is bonded at the annular protrusion of the front surface of the LCD liquid crystal display.

[0014] As a further description of the above technical solutions:

[0015] The FPC is installed on the rear surface of the LCD liquid crystal display.

[0016] As a further description of the above technical solutions:

[0017] The silicone oil paper is bonded on the upper surface of the OCA double-sided adhesive, and the silicone oil paper is provided in two groups, and the two groups of silicone oil paper are longitudinally symmetrically distributed with the center line of the OCA double-sided adhesive.

[0018] As a further description of the above technical solutions:

[0019] The silicone oil paper is provided in an annular shape.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, the LCD liquid crystal display and the glass cover plate are attached by the OCA double-sided adhesive, the LCD liquid crystal display is the LCD liquid crystal display of high contrast ratio VA mode, the glass cover plate is the black silk print glass cover plate of 50% transmittance, and the high brightness backlight source is matched under the cooperation of the two, so that the integrated black display effect is achieved, and the device is more in line with the aesthetic demand of the market.

[0022] 2. In the utility model, the cooperation of the protection assembly can greatly reduce the probability of the OCA double-sided adhesive being raised in the tearing process of the silicone oil paper, effectively improve the flatness of the OCA double-sided adhesive bonding, and improve the subsequent installation quality of the device. DRAWINGS

[0023] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 It is a three-dimensional structure split schematic diagram of the backlight source, the FPC, the COGIC, the LCD liquid crystal display, the OCA double-sided adhesive and the glass cover plate in the utility model;

[0025] Figure 3 It is the split schematic diagram of the three-dimensional structure of the silicone oil paper and the OCA double-sided adhesive in the utility model;

[0026] Figure 4 It is the split schematic diagram of the three-dimensional structure of the silicone oil paper, the connecting block and the positioning block in the utility model.

[0027] Legend:

[0028] 1, backlight; 2, FPC; 3, COGIC; 4, LCD liquid crystal display; 5, OCA double-sided adhesive; 6, glass cover plate; 71, silicone oil paper; 72, connecting block; 73, anti-skid adhesive tape; 74, positioning block; 75, protruding block; 701, crescent groove; 702, empty groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Reference Figure 1 - Figure 3 An embodiment provided by the utility model: a novel high-contrast OCA bonding VA auxiliary mechanism, comprising a backlight 1, the backlight 1 is high brightness, which is a LED backlight for providing light source to full bonding semi-finished product, which is prior art, and can be realized by those skilled in the art, since it is prior art, so it is not described too much in this case, the front surface of the backlight 1 is provided with FPC 2, the AK pin of FPC 2 and the backlight 1 is welded, both can realize electrical connection, FPC 2 is a flexible circuit board, the front surface of FPC 2 is provided with COGIC 3, the front surface of the backlight 1 is provided with LCD liquid crystal display 4, the LCD liquid crystal display 4 is high-contrast VA mode LCD liquid crystal display, the LCD liquid crystal display 4, FPC 2 and COGIC 3 are prior art, and can be realized by those skilled in the art, since it is prior art, so it is not described too much in this case, the front surface of the LCD liquid crystal display 4 is bonded with OCA double-sided adhesive 5, OCA double-sided adhesive 5 is an optical adhesive, the front surface of OCA double-sided adhesive 5 is bonded with glass cover plate 6, glass cover plate 6 is 50% transmittance black silk screen glass cover plate, the outer wall of OCA double-sided adhesive 5 is provided with a protection assembly, the protection assembly can realize OCA double-sided adhesive 5 when not in use, and provides oil-proof, moisture-proof and isolation performance for OCA double-sided adhesive 5.

[0031] Reference Figure 3 -Figure 4 The protection assembly comprises a silicone oil paper 71 capable of preventing oil, moisture and impurities, and the upper surface of the silicone oil paper 71 is provided with a crescent groove 701, the silicone oil paper 71 is annular and capable of wrapping the OCA double-sided adhesive tape 5, the two ends of the silicone oil paper 71 are close to each other and capable of forming the crescent groove 701, one end of the upper surface of the silicone oil paper 71 is fixedly connected with a connecting block 72, the other end of the upper surface of the silicone oil paper 71 is fixedly connected with a positioning block 74, the upper surface of the connecting block 72 is fixedly connected with an anti-skid rubber strip 73 capable of preventing skidding, ensuring that the one end of the silicone oil paper 71 is not easy to slide when being torn, and the upper surface of the positioning block 74 is fixedly connected with a protruding block 75, and the right surface of the connecting block 72 is provided with an air slot 702 into which a finger can be inserted.

[0032] With reference to Figure 1 - Figure 3 The COGIC 3 is mounted on the rear surface of the LCD liquid crystal display 4, the front surface of the LCD liquid crystal display 4 is provided with an annular protrusion, the rear surface of the OCA double-sided adhesive tape 5 is bonded to the annular protrusion on the front surface of the LCD liquid crystal display 4, the FPC 2 is mounted on the rear surface of the LCD liquid crystal display 4, the COGIC 3 is a binding type driving chip, the COGIC 3 is bound to the LCD liquid crystal display 4 to realize electrical connection of the two, and one end of the FPC 2 is also bound to the LCD liquid crystal display 4 and electrically connected with the COGIC 3.

[0033] With reference to Figure 3 - Figure 4 The silicone oil paper 71 is bonded to the upper surface of the OCA double-sided adhesive tape 5, the silicone oil paper 71 is provided with two groups, the two groups of silicone oil papers 71 are longitudinally symmetrically distributed with the center line of the OCA double-sided adhesive tape 5, can provide protection for the upper and lower surfaces of the OCA double-sided adhesive tape 5, and the silicone oil paper 71 is annular.

[0034] Working principle: when the device is used, the COGIC 3 is bound to the LCD liquid crystal display 4 by using the ACF film, then one end of the FPC 2 is connected with the LCD liquid crystal display 4 by using the ACF film, and then the COGIC 3 and the FPC 2 are mounted on the LCD liquid crystal display 4.

[0035] Then the finger is inserted into the empty slot 702 to hold the anti-skid rubber strip 73, and the protrusion 75 is pressed with the other hand to ensure the other end of the silicone paper 71 is stable, then the empty slot 702 is torn to lift the one end of the silicone paper 71 from the crescent slot 701, the silicone paper 71 can be gradually torn by moving the anti-skid rubber strip 73, when tearing to the positioning block 74, the protrusion 75 is released, the separation of the silicone paper 71 and the OCA double-sided adhesive 5 is completed, through the cooperation of the above components, the silicone paper 71 can be prevented from pulling the OCA double-sided adhesive 5 to deform the OCA double-sided adhesive 5 in the tearing process, affecting the flatness of the subsequent bonding, then the one end of the silicone paper 71 torn on the OCA double-sided adhesive 5 is adhered to the annular protrusion on the LCD liquid crystal display 4, after adhering, the silicone paper 71 on the other side of the OCA double-sided adhesive 5 is torn in the same way, and the glass cover plate 6 is adhered to the other side of the OCA double-sided adhesive 5, to form a semi-finished product.

[0036] Finally, the AK pin on the backlight 1 is welded on the FPC 2 to realize the electrical integration of the overall module, and the assembly of the device is completed.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A new high-contrast OCA bonding VA auxiliary mechanism, comprising a backlight (1), characterized in that: The front surface of the backlight source (1) is provided with an FPC (2), the front surface of the FPC (2) is provided with a COGIC (3), the front surface of the backlight source (1) is provided with an LCD liquid crystal display (4), the front surface of the LCD liquid crystal display (4) is bonded with an OCA double-sided adhesive (5), the front surface of the OCA double-sided adhesive (5) is bonded with a glass cover plate (6), and the outer wall of the OCA double-sided adhesive (5) is provided with a protection assembly.

2. A novel high-contrast OCA bonding VA auxiliary mechanism according to claim 1, characterized by: The protection assembly comprises a silicone oil paper (71), a crescent groove (701) is formed in the upper surface of the silicone oil paper (71), one end of the upper surface of the silicone oil paper (71) is fixedly connected with a connecting block (72), the other end of the upper surface of the silicone oil paper (71) is fixedly connected with a positioning block (74), the upper surface of the connecting block (72) is fixedly connected with an anti-skid rubber strip (73), the upper surface of the positioning block (74) is fixedly connected with a protruding block (75), and the right surface of the connecting block (72) is provided with a hollow groove (702).

3. A novel high-contrast OCA bonding VA auxiliary mechanism according to claim 1, characterized by: The COGIC (3) is installed on the rear surface of the LCD liquid crystal display (4), and the front surface of the LCD liquid crystal display (4) is provided with an annular protrusion.

4. A novel high-contrast OCA bonding VA auxiliary mechanism according to claim 3, characterized in that: The rear surface of the OCA double-sided adhesive (5) is bonded at the annular protrusion on the front surface of the LCD liquid crystal display (4).

5. A novel high-contrast OCA bonding VA auxiliary mechanism according to claim 1, characterized by: The FPC (2) is installed on the rear surface of the LCD liquid crystal display (4).

6. A novel high-contrast OCA bonding VA auxiliary mechanism according to claim 2, characterized by: The silicone oil paper (71) is bonded on the upper surface of the OCA double-sided adhesive (5), and the silicone oil paper (71) is provided with two groups, and the two groups of silicone oil papers (71) are longitudinally symmetrically distributed with the center line of the OCA double-sided adhesive (5) as the center.

7. A novel high-contrast OCA bonding VA auxiliary mechanism according to claim 2, characterized by: The silicone oil paper (71) is provided in an annular shape.

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