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Display module and preparation method and application thereof

A display module and liquid crystal display technology, which is applied in optics, instruments, nonlinear optics, etc., can solve the problems of small bonding area in BM area, difficulty in die-cutting and construction, and improve bonding efficiency , with reworkability, to solve the effect of narrow width

Active Publication Date: 2021-06-25
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The width of the BM area is 0.9mm, the width of the stickable area of ​​the screen is about 0.9mm, and the width of the side sealing edge is about 0.3mm. Considering the appearance, the limit bonding area is about 1.2mm 2 , if conventional PU foam tape is used for lamination, the tape strength of 0.9mm wide cannot meet the strength requirements, die-cutting and molding are difficult and production cannot be constructed
The PU foam glue used in the current full-fit LCD TV is not feasible to bond the 0.9mm screen body in the BM area because of its wide size and weak strength.
[0006] Therefore, developing a display module that requires high adhesive strength, high bonding accuracy and can solve the problem of small bonding area in BM area is currently the Technical problems that urgently need to be solved in the field

Method used

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  • Display module and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A display module, its structural schematic diagram is as follows figure 1 As shown, including LCD display 1 (BOE) and frame 2 (Zhuhai Fuji Intelligent Co., Ltd.);

[0047] The liquid crystal display screen and the frame are connected by black UV glue 3 (one-component polyurethane acrylate glue, Japan SEKISUI) and transparent UV glue 4 (one-component polyurethane acrylate glue, Japan SEKISUI);

[0048] The preparation method includes: applying black UV glue and transparent UV glue on the frame through a screw valve needle automatic dispensing machine with plastic steel needles or stainless steel needles, connecting with the LCD screen, using UV and moisture Curing in a dual-curing manner for 24 hours to obtain the display module;

[0049] The glue line width of the transparent UV glue coated is 0.3mm, and the height of the transparent UV glue coated is 0.5mm; the dispensing speed of the transparent UV glue coated is 50mm / s; the black UV glue coated The glue line width ...

Embodiment 2

[0051] A display module, the structure of which is the same as in Embodiment 1, including a liquid crystal display (BOE) and a frame (Zhuhai Fuji Intelligent Co., Ltd.);

[0052] The liquid crystal display screen and the frame are connected by black UV glue (one-component polyurethane acrylate glue, Japan SEKISUI) and transparent UV glue (one-component polyurethane acrylate glue, Japan SEKISUI);

[0053] The preparation method includes: applying black UV glue and transparent UV glue on the frame through a screw valve needle automatic dispensing machine with plastic steel needles or stainless steel needles, connecting with the LCD screen, using UV and moisture Curing in a dual-curing manner for 24 hours to obtain the display module;

[0054] The glue line width of the transparent UV glue coated is 0.2mm, and the height of the transparent UV glue coated is 0.4mm; the dispensing speed of the transparent UV glue coated is 40mm / s; the black UV glue coated The glue line width of th...

Embodiment 3

[0056] A display module, the structure of which is the same as in Embodiment 1, including a liquid crystal display (BOE) and a frame (Zhuhai Fuji Intelligent Co., Ltd.);

[0057] The liquid crystal display screen and the frame are connected by black UV glue (one-component polyurethane acrylate glue, Japan SEKISUI) and transparent UV glue (one-component polyurethane acrylate glue, Japan SEKISUI);

[0058] The preparation method includes: applying black UV glue and transparent UV glue on the frame through a screw valve needle automatic dispensing machine with plastic steel needles or stainless steel needles, connecting with the LCD screen, using UV and moisture Curing in a dual-curing manner for 24 hours to obtain the display module;

[0059] The glue line width of the transparent UV glue coated is 0.4mm, and the height of the transparent UV glue coated is 0.6mm; the dispensing speed of the transparent UV glue coated is 60mm / s; the black UV glue coated The glue line width of th...

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Abstract

The invention provides a display module and a preparation method and application thereof. The display module comprises a liquid crystal display screen and a frame body, and the liquid crystal display screen and the frame body are connected through UV glue; UV glue is adopted to replace traditional foam glue and is used for bonding the liquid crystal display screen and the frame body, so that the display module can be prepared by dispensing through an automatic precise dispensing machine. The finally obtained display module not only meets the requirements for bonding strength, elongation at break and Shore hardness of a liquid crystal display screen, but also can effectively avoid the problem that a screen body of the display module is fragile in the assembling and repairing processes due to the fact that the adopted UV glue has certain buffering elasticity, and has important research value.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display module and its preparation method and application. Background technique [0002] With the popularity of full-fit LCD TVs without borders, getting rid of the shackles of the borders, achieving a higher screen-to-body ratio, and achieving a true 100% full-screen TV is still a very important technological development trend for full-fit TVs without borders. . The technical development of the BM area (Black matrix, non-display area) of the TV LCD screen from 7.9mm to 5.9mm to 3.5mm to 0.9mm has laid a new foundation for the technical development of the full screen, and the design of the TV frame is becoming more and more Narrow, poses a new challenge to the bonding of the display screen and the frame. [0003] At present, in the TV industry, black PU double-sided foam tape is generally used to attach the display screen of the borderless LCD TV to the metal or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333B05D3/06B05D3/00B05D1/26
CPCG02F1/1333G02F1/133308B05D1/26B05D3/007B05D3/067
Inventor 赵丽
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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