CN215576011U

CN215576011U - Liquid crystal display module

Info

Publication number: CN215576011U
Application number: CN202122031288.7U
Authority: CN
Inventors: 卢本劲
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-18
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a liquid crystal display module, which comprises an upper substrate and a lower substrate which are oppositely arranged, wherein the upper surface of the lower substrate is provided with at least one grounding PAD, and the upper substrate is lapped with each grounding PAD through silver paste; the silver thick liquid is including an at least overlap joint portion, an at least climbing portion and an at least extension that connect gradually, and each overlap joint portion and each ground connection PAD one-to-one overlap joint, and each climbing portion is followed the side of going up the base plate climbs to from the ground connection PAD that corresponds the upper surface of going up the base plate, each extension is followed the upper surface edge of going up the base plate extends. The liquid crystal display module can increase the stability of the silver paste for lapping between the upper substrate and the lower substrate, reduce the impedance of the silver paste and improve the electrostatic discharge capacity of the silver paste.

Description

Liquid crystal display module

Technical Field

The utility model relates to a display technology, in particular to a liquid crystal display module.

Background

The liquid crystal display module comprises an upper substrate and a lower substrate which are oppositely arranged, wherein a liquid crystal material is filled between the upper substrate and the lower substrate, and the upper substrate does not have an external circuit, so that static electricity can be gathered in the manufacturing, transporting and using processes. In the prior art, in order to solve the problem of the static electricity of the upper substrate, silver paste is dotted between the upper substrate and the lower substrate, so that the upper substrate is lapped on the grounding PAD of the lower substrate through the silver paste, and then is grounded through the external circuit of the lower substrate, and the static electricity gathered by the upper substrate is released. However, the silver paste at the point between the upper substrate and the lower substrate is point-shaped, and has a small contact area with the upper substrate, poor stability, relatively high impedance, and relatively weak electrostatic discharge capability.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a liquid crystal display module which can increase the stability of silver paste for lapping an upper substrate and a lower substrate, reduce the impedance of the silver paste and improve the electrostatic discharge capacity of the silver paste.

The technical problem to be solved by the utility model is realized by the following technical scheme:

the liquid crystal display module comprises an upper substrate and a lower substrate which are oppositely arranged, wherein at least one grounding PAD is arranged on the upper surface of the lower substrate, and the upper substrate is in lap joint with each grounding PAD through silver paste; the silver thick liquid is including an at least overlap joint portion, an at least climbing portion and an at least extension that connect gradually, and each overlap joint portion and each ground connection PAD one-to-one overlap joint, and each climbing portion is followed the side of going up the base plate climbs to from the ground connection PAD that corresponds the upper surface of going up the base plate, each extension is followed the upper surface edge of going up the base plate extends.

Further, the upper surface of the upper substrate is also provided with a conductive shielding film, and the edge of the conductive shielding film is clamped between the upper substrate and each extension part of the silver paste.

Further, the conductive shielding film is an ITO film or a polarizer with conductive performance.

Furthermore, the polaroid is also used as an upper polaroid of the liquid crystal display module.

Furthermore, a lower polarizer is arranged on the lower surface of the lower substrate.

Furthermore, a circuit board is arranged on one side edge of the lower substrate, and each grounding PAD is lapped to the circuit board through a corresponding routing wire.

Further, the extension portions are connected as a single body.

Furthermore, a display area is formed between the upper substrate and the lower substrate in a surrounding mode through a sealant, and liquid crystal materials are filled between the upper substrate and the lower substrate in the display area.

Furthermore, at least one blocking strip is arranged in a gap between the upper substrate and the lower substrate, and each blocking strip is arranged between the sealant and the lap joint part corresponding to the silver paste.

Furthermore, all the stop bars are connected into a whole.

The utility model has the following beneficial effects: this liquid crystal display module assembly not only passes through when the point silver thick liquid not only make by overlap joint portion and climbing portion the silver thick liquid is followed each ground connection PAD climbing of infrabasal plate extremely the upper surface of upper substrate passes through moreover the extension has enlarged the silver thick liquid with area of contact between the upper substrate makes the stability of silver thick liquid is higher, and the impedance is littleer, and electrostatic discharge ability is better.

Drawings

FIG. 1 is a schematic view of a liquid crystal display module according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of the LCD module shown in FIG. 1;

FIG. 3 is a schematic view of another LCD module according to the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example one

As shown in fig. 1 and 2, a liquid crystal display module includes an upper substrate 2 and a lower substrate 1 disposed opposite to each other, the upper surface of the lower substrate 1 is provided with at least one grounding PAD11, and the upper substrate 2 and each grounding PAD11 are overlapped through silver paste 3; silver thick liquid 3 is including an at least overlap joint portion 31, an at least climbing portion 32 and an at least extension 33 that connect gradually, and each overlap joint portion 31 and each ground connection PAD11 one-to-one overlap joint, and each climbing portion 32 is followed the side of going up base plate 2 climbs to from the ground connection PAD11 that corresponds the upper surface of going up base plate 2, each extension 33 is followed the upper surface edge of going up base plate 2 extends.

This liquid crystal display module not only passes through when some silver thick liquid 3 overlap joint portion 31 and climbing portion 32 make silver thick liquid 3 is followed each ground connection PAD11 climbing of infrabasal plate 1 extremely the upper surface of upper substrate 2 passes through moreover extension 33 has enlarged silver thick liquid 3 with area of contact between the upper substrate 2 makes silver thick liquid 3's stability is higher, and the impedance is littleer, and electrostatic discharge ability is better.

The connecting line of the bridging portion 31 and the climbing portion 32 is parallel to the first direction, the connecting line of the climbing portion 32 and the extending portion 33 is parallel to the second direction, and the first direction is perpendicular to the second direction.

The length of the lap joint part 31 along the first direction is 2.5mm, and the length along the second direction is 2.5 mm; the length of the slope-climbing part 32 in the second direction is 2.5mm, and the length of the part climbing up to the upper surface of the upper substrate 2 in the first direction is 0.5 mm; the extension 33 has a length of 0.5mm in the first direction and a length of 3.5mm in the second direction.

The upper surface of the upper substrate 2 is also provided with a conductive shielding film 8, and the conductive shielding film 8 can shield the liquid crystal display module from external electromagnetic signals so as to prevent the external electromagnetic signals from interfering with the liquid crystal display module; the edge of the conductive shielding film 8 is sandwiched between the upper substrate 2 and each extension 33 of the silver paste 3.

The conductive shielding film 8 may be an ITO film, may be a polarizer with conductivity, and is preferably a polarizer with conductivity, and at this time, the polarizer may also serve as an upper polarizer of the liquid crystal display module.

Meanwhile, a lower polarizer 7 is disposed on the lower surface of the lower substrate 1.

A circuit board 4 is arranged on one side edge of the lower substrate 1, each grounding PAD11 is lapped on the circuit board 4 through a corresponding routing wire 12, and the circuit board 4 is lapped on a main board or a metal casing of a terminal such as a mobile phone, so as to realize grounding; the wiring board 4 is preferably a flexible board.

A display area is formed between the upper substrate 2 and the lower substrate 1 in a surrounding mode through a sealant 9, and a liquid crystal material 6 is filled between the upper substrate 2 and the lower substrate 1 in the display area.

In a preferred scheme, in order to avoid that the silver paste 3 enters into the gap between the upper substrate 2 and the lower substrate 1 and further to corrode the sealant 9 or the circuit of the lower substrate 1 on the non-display area, at least one blocking strip 5 is arranged in the gap between the upper substrate 2 and the lower substrate 1, and each blocking strip 5 is arranged between the sealant 9 and the lap joint part 31 corresponding to the silver paste 3.

Each stop 5 is optimally located at the edge of the upper base plate 2.

Example two

As shown in fig. 3, compared with the first embodiment, the difference of the present embodiment is only that: the extending parts 33 of the silver paste 3 are connected into a whole, and the baffle strips 5 are also connected into a whole.

The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.

Claims

1. The utility model provides a liquid crystal display module assembly, is including relative upper substrate and the infrabasal plate that sets up, the upper surface of infrabasal plate is provided with an at least ground connection PAD, through silver thick liquid overlap joint between upper substrate and each ground connection PAD, a serial communication port, silver thick liquid is including an at least overlap joint portion, an at least climbing portion and an at least extension that connect gradually, and each overlap joint portion and each ground connection PAD one-to-one overlap joint, and each climbing portion is followed the side of upper substrate is followed the ground connection PAD climbing that corresponds extremely the upper surface of upper substrate, each extension is followed the upper surface edge of upper substrate extends.

2. The liquid crystal display module according to claim 1, wherein a conductive shielding film is further disposed on the upper surface of the upper substrate, and an edge of the conductive shielding film is sandwiched between the upper substrate and each extension portion of the silver paste.

3. The liquid crystal display module of claim 2, wherein the conductive shielding film is an ITO film or a polarizer with conductive properties.

4. The liquid crystal display module according to claim 3, wherein the polarizer doubles as an upper polarizer of the liquid crystal display module.

5. The LCD module of any of claims 1-4, wherein a lower polarizer is disposed on the lower surface of the lower substrate.

6. The liquid crystal display module of claim 1, wherein a circuit board is disposed on a side edge of the lower substrate, and each ground PAD is connected to the circuit board via a corresponding trace.

7. The liquid crystal display module of claim 1, wherein the extensions are integrally connected.

8. The liquid crystal display module of claim 1, wherein a display area is formed between the upper substrate and the lower substrate by a sealant, and a liquid crystal material is filled between the upper substrate and the lower substrate in the display area.

9. The liquid crystal display module of claim 8, wherein at least one barrier strip is disposed in the gap between the upper substrate and the lower substrate, and each barrier strip is disposed between the bonding portions of the sealant and the silver paste.

10. The liquid crystal display module of claim 1, wherein the bars are integrally connected.