CN219435163U

CN219435163U - Liquid crystal display module

Info

Publication number: CN219435163U
Application number: CN202320004218.9U
Authority: CN
Inventors: 蔡育林; 苏鹏; 卢本劲
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-07-28
Anticipated expiration: 2033-01-03

Abstract

The utility model relates to the technical field of liquid crystal display, in particular to a liquid crystal display module, which comprises a cover plate, an upper iron frame, an upper polaroid, TBN glass, a lower polaroid and backlight; an upper polaroid and a lower polaroid are respectively arranged on the upper side and the lower side of the TBN glass; the upper polaroid, the TBN glass and the lower polaroid together form a combination body; the combination body is stuck on the backlight; the upper iron frame covers the periphery of the backlight, and the upper iron frame covers the combined body at the same time; the cover plate covers the upper iron frame, and the back surface of the cover plate is plated with an ITO film; the back of the cover plate is stuck and connected with the upper polaroid of the assembly through double-sided adhesive, and the conductive double-sided adhesive is in contact with the upper iron frame for conduction. The utility model is characterized in that; according to the utility model, the original ITO film plated on TBN glass is changed into the ITO film plated on the back of the cover plate, and the ITO film is contacted with the upper iron frame through the cover plate and then directly grounded, so that the total resistance of a conductive path is obviously reduced, and the ESD capability is improved.

Description

Liquid crystal display module

Technical Field

The present utility model relates to the field of liquid crystal display technology, and in particular, to a liquid crystal display module.

Background

ESD (Electro-static discharge) means "electrostatic discharge". ESD has been developed in the middle of the 20 th century to investigate the generation, hazard, protection against static electricity, and the like. Therefore, it is internationally customary to refer to the equipment for electrostatic protection as ESD, and chinese name is electrostatic resistor.

ITO is mainly used for manufacturing liquid crystal displays, flat panel displays, plasma displays, touch screens, electronic papers, organic light emitting diodes, solar cells, antistatic films and transparent conductive films for EMI shielding;

in the prior art, a TBNLCD display screen is sensitive to ESD, so that the problem of ESD needs to be improved by plating ITO, but the TBN plating ITO is generally longer in manufacturing flow, lower in LCD yield and larger in ESD release path resistance, so that the ESD capability is not ideal.

As shown in FIG. 1, the ITO film is plated on TBN glass, and the original TBN surface is plated with a film, so that the ITO film has low resistivity due to long manufacturing flow; in addition, the ITO is connected to the ground through conductive silver paste, the ESD release path is longer, and the total resistance of the conductive path is larger, namely about 100-1MΩ; ESD capability is not ideal.

Disclosure of Invention

The utility model aims at solving the problems in the background technology, and provides a liquid crystal display module, wherein an original ITO film plated on TBN glass is changed into a film plated on the back of a cover plate, and the film is contacted with an upper iron frame through the cover plate and then directly grounded, so that the total resistance of a conductive path is obviously reduced, and the ESD capability is improved.

The technical scheme of the utility model is that the liquid crystal display module comprises a cover plate, an upper iron frame, an upper polaroid, TBN glass, a lower polaroid and a backlight; an upper polaroid and a lower polaroid are respectively arranged on the upper side and the lower side of the TBN glass;

the upper polaroid, the TBN glass and the lower polaroid together form a combination body; the combination body is stuck on the backlight; the upper iron frame covers the periphery of the backlight, and the upper iron frame covers the combined body at the same time; the cover plate covers the upper iron frame, and the back surface of the cover plate is plated with an ITO film; the back of the cover plate is stuck and connected with the upper polaroid of the assembly through double-sided adhesive, and the conductive double-sided adhesive is in contact with the upper iron frame for conduction.

Preferably, the upper iron frame is grounded.

Preferably, the middle part of the upper iron frame is provided with an opening, and the combined body leaks out from the opening.

Preferably, the double-sided adhesive is a conductive double-sided adhesive.

Preferably, the thickness of the ITO film is 0.3-1.1mm.

Preferably, the upper polaroid is adhered and connected with TBN glass through glass cement.

Preferably, the lower polarizer is adhered and connected with TBN glass through glass cement.

Preferably, the resistance of the total conductive path of the display module is 0-100 omega.

Compared with the prior art, the utility model has the following beneficial technical effects: compared with the prior art, the back of the cover plate is plated with the ITO film, and the ITO film is communicated with the upper iron frame through the conductive double-sided adhesive; the upper iron frame is directly grounded, and the resistance of the total conductive path is 0-100 omega; the ESD on the surface can be led out more quickly, and the ESD capacity is effectively improved.

Drawings

FIG. 1 is a schematic diagram of a prior art ITO film coated LCD module;

FIG. 2 is a schematic diagram of a structure of an ITO film coated LCD module according to the present utility model.

Reference numerals: 1. a cover plate; 2. an ITO film; 3. double-sided adhesive; 4. an iron frame is arranged; 5. a polaroid is arranged on the upper surface of the substrate; 6. TBN glass; 7. a lower polarizer; 8. and (3) a backlight.

Detailed Description

Example 1

As shown in fig. 2, the liquid crystal display module provided by the utility model comprises a cover plate 1, an upper iron frame 4, an upper polarizer 5, TBN glass 6, a lower polarizer 7 and a backlight 8; an upper polaroid 5 and a lower polaroid 7 are respectively arranged on the upper side and the lower side of the TBN glass 6;

the upper polaroid 5, the TBN glass 6 and the lower polaroid 7 together form a combination body; the combination is stuck on the backlight 8; the upper iron frame 4 covers the periphery of the backlight 8, and the upper iron frame 4 covers the combined body at the same time; the cover plate 1 is covered on the upper iron frame 4, and the back surface of the cover plate 1 is plated with an ITO film 2; the back of the cover plate 1 is stuck and connected with the upper polaroid 5 of the assembly through the double-sided adhesive 3, and the conductive double-sided adhesive 3 is in contact with the upper iron frame 4 for conduction.

In the embodiment, the ITO film 2 originally plated on the TBN glass 6 is plated on the back of the cover plate 1 instead; the cover plate 1 covers the upper iron frame 4, and the upper iron frame 4 is grounded; in addition, the upper polaroid 5, the TBN glass 6 and the lower polaroid 7 together form a combination body; the double-sided adhesive tape 3 used for connection is a conductive double-sided adhesive tape 3, so that in the actual use process, the ITO film 2 is communicated with the upper iron frame 4 through the periphery of the conductive double-sided adhesive tape 3, and the upper iron frame 4 is connected with the ground; in the prior art, the FPC is connected to the ground through the conductive silver paste, the ESD release path is longer, and the total resistance of the conductive path is larger, namely about 100-1MΩ; after the scheme is adopted, the resistance of the total conductive path is very small and is about 0-100 omega, and the surface ESD can be more rapidly led out, so that the ESD capacity is improved.

Example 2

Unlike the embodiment 1, the middle part of the upper iron frame 4 is provided with an opening, and the assembly leaks out from the opening.

In this embodiment, the upper iron frame 4 protects the entire backlight 8 and the assembly formed by combining the upper polarizer 5, the TBN glass 6 and the lower polarizer 7 together, and meanwhile, the upper iron frame 4 is grounded, so as to facilitate charge transfer and improve ESD capability; in addition, the display effect of the screen is not affected by the opening arranged in the middle of the upper iron frame 4.

Example 3

The liquid crystal display module provided by the utility model is different from the embodiment 1 in that the thickness of the ITO film 2 is 0.3-1.1mm. The upper polaroid 5 is stuck and connected with TBN glass 6 through glass cement. The lower polaroid 7 is in adhesive connection with the TBN glass 6 through glass cement.

In this embodiment, the ITO film 2 is indium tin oxide, which is a substitutional solid solution, transparent brown film or yellow-gray block, and is composed of 90% in ₂ O ₃ And 10% SnO ₂ Is mixed and mainly used for manufacturing liquid crystal displays, flat panel displays and plasmasSub-displays, touch screens, electronic paper, organic light emitting diodes, solar cells, antistatic coatings, transparent conductive coatings for EMI shielding, and various optical coatings. The ITO film has good conductivity and high light transmittance in the visible light region.

In this embodiment, the upper polarizer 5 and the lower polarizer 7 are adhered and connected with the TBN glass 6 through glass cement, so that the integrity of the TBN glass 6 is ensured, and the display effect is not affected.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. A liquid crystal display module comprises a cover plate (1), an upper iron frame (4), an upper polaroid (5), TBN glass (6), a lower polaroid (7) and a backlight (8); an upper polaroid (5) and a lower polaroid (7) are respectively arranged on the upper side and the lower side of the TBN glass (6);

the upper polaroid (5), the TBN glass (6) and the lower polaroid (7) together form a combination body; the combination body is stuck on the backlight (8); the upper iron frame (4) covers the periphery of the backlight (8), and the upper iron frame (4) covers the combined body at the same time; the cover plate (1) is covered on the upper iron frame (4), and is characterized in that the back surface of the cover plate (1) is plated with an ITO film (2); the back of the cover plate (1) is adhered and connected with the upper polaroid (5) of the assembly through the double-sided adhesive (3), and the conductive double-sided adhesive (3) is in contact conduction with the upper iron frame (4).

2. A liquid crystal display module according to claim 1, characterized in that the upper iron frame (4) is grounded.

3. A liquid crystal display module according to claim 1, characterized in that the middle part of the upper iron frame (4) is provided with an opening, and the assembly leaks out from the opening.

4. A liquid crystal display module according to claim 1, characterized in that the double-sided adhesive (3) is a conductive double-sided adhesive (3).

5. A liquid crystal display module according to claim 1, characterized in that the thickness of the ITO film (2) is 0.3-1.1mm.

6. A liquid crystal display module according to claim 1, characterized in that the upper polarizer (5) is attached to the TBN glass (6) by means of a glass glue.

7. A liquid crystal display module according to claim 1, characterized in that the lower polarizer (7) is attached to the TBN glass (6) by means of a glass glue.

8. The liquid crystal display module of claim 1, wherein the resistance of the total conductive path of the display module is 0-100 Ω.