Module structure of liquid crystal display and manufacturing process of module structure

Patent metadata

Field	Value
Publication number	US-2022011622-A1
Application number	US-202117371365-A
Country	US
Kind code	A1
Filing date	Jul 9, 2021
Priority date	Jul 10, 2020
Publication date	Jan 13, 2022
Grant date	—

Abstract

The present disclosure relates to a module structure of a liquid crystal display, the module structure includes a panel glass assembly, a backlight assembly and a display housing retaining wall; an accommodating space formed by the display housing retaining wall accommodates the panel glass assembly and the backlight assembly; the panel glass assembly includes a front glass sheet, a rear glass sheet and a sealant for sealing a liquid crystal accommodating space between the front glass sheet and the rear glass sheet. The module structure is characterized in that, a filling gap is provided between outer peripheral surfaces of the front glass sheet and the rear glass sheet of the panel glass assembly and an inner peripheral surface of the display housing retaining wall facing the outer peripheral surfaces; and a panel edge protective adhesive is filled in the filling gap. The present disclosure also relates to a manufacturing process of the module structure.

First claim

1 . A module structure of a liquid crystal display, the module structure comprising a panel glass assembly, a backlight assembly and a display housing retaining wall;
an accommodating space formed by the display housing retaining wall accommodating the panel glass assembly and the backlight assembly; the panel glass assembly comprising a front glass sheet, a rear glass sheet and a sealant for sealing a liquid crystal accommodating space between the front glass sheet and the rear glass sheet, wherein: a filling gap is provided between outer peripheral surfaces of the front glass sheet and the rear glass sheet of the panel glass assembly and an inner peripheral surface of the display housing retaining wall facing the outer peripheral surfaces; and a panel edge protective adhesive is filled in the filling gap.

2 . The module structure according to claim 1 , wherein:
a liquid crystal display controller is provided on a terminal part of the rear glass sheet; and a terminal part protective adhesive is coated on the terminal part, so that the terminal part protective adhesive completely covers the liquid crystal display controller and a height of the terminal part protective adhesive is equal to or greater than that of an upper surface of the front glass sheet.

3 . The module structure according to claim 2 , wherein:
the terminal part protective adhesive is further coated on the terminal part, so that the terminal part protective adhesive flows over the upper surface of the front glass sheet and so that the terminal part protective adhesive completely covers an edge of the front glass sheet.

4 . The module structure according to claim 3 , wherein:
a waterproof adhesive is coated on the terminal part protective adhesive so that the waterproof adhesive covers an edge of the front glass sheet.

5 . The module structure according to claim 1 , wherein:
an elastic buffering sheet is provided between the backlight assembly and the rear glass sheet, and is attached along an periphery of the rear glass sheet.

6 . The module structure according to claim 1 , wherein:
a size of the filling gap is equal to or greater than 0.5 mm.

7 . The module structure according to claim 1 , wherein:
the panel edge protective adhesive is an ultraviolet curable adhesive.

8 . The module structure according to claim 3 , wherein:
the terminal part protective adhesive is a room temperature vulcanized silicone rubber or an ultraviolet curable adhesive.

9 . A manufacturing process of a module structure of a liquid crystal display, the module structure comprising a panel glass assembly, a backlight assembly and a display housing retaining wall;
an accommodating space formed by the display housing retaining wall accommodating the panel glass assembly and the backlight assembly; the panel glass assembly comprising a front glass sheet, a rear glass sheet and a sealant for sealing a liquid crystal accommodating space between the front glass sheet and the rear glass sheet, wherein: the manufacturing process comprises a module designing stage; in the module designing stage, a filling gap is designed in advance between outer peripheral surfaces of the front glass sheet and the rear glass sheet of the panel glass assembly and an inner peripheral surface of the display housing retaining wall facing the outer peripheral surfaces.

10 . The manufacturing process according to claim 9 , wherein:
the manufacturing process further comprises an attaching stage; in the attaching stage, a flexible circuit board is attached onto the rear glass sheet firstly; a terminal part protective adhesive is then coated on a terminal part of the rear glass sheet, so that a height of the terminal part protective adhesive is equal to or greater than that of an upper surface of the front glass sheet.

11 . The manufacturing process according to claim 10 , wherein:
the manufacturing process further comprises a module assembling stage; an elastic buffering sheet is provided between the backlight assembly and the rear glass sheet and is attached along a periphery of the rear glass sheet; the panel glass assembly is attached in the display housing retaining wall; a panel edge protective adhesive is filled in the filling gap; and the filled, panel edge protective adhesive is cured with ultraviolet radiation.

12 . The manufacturing process according to claim 11 , wherein:
the terminal part protective adhesive is further coated on the terminal part, so that the terminal part protective adhesive flows over the upper surface of the front glass sheet and so that the terminal part protective adhesive completely covers an edge of the front glass sheet.

13 . The manufacturing process according to claim 12 , wherein:
a waterproof adhesive is coated on the terminal part protective adhesive so that the waterproof adhesive covers the edge of the front glass sheet.

14 . The manufacturing process according to claim 9 , wherein:
the filling gap is designed to have a size equal to or greater than 0.5 mm.

15 . The manufacturing process according to claim 11 , wherein:
an ultraviolet curable adhesive is selected as the panel edge protective adhesive.

16 . The manufacturing process according to claim 10 , wherein:
a room temperature vulcanized silicone rubber or an ultraviolet curable adhesive is selected as the terminal part protective adhesive.

Assignees

• Schneider Electric Ind Sas

Inventors

• Fei Weihe
• Wang Zhaocai

Classifications

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• B32B2307/7265

  Non-permeable · CPC title

• B32B2457/202

  LCD, i.e. liquid crystal displays · CPC title