Liquid crystal display panel and preparation method thereof

Patent metadata

Field	Value
Publication number	US-9703146-B2
Application number	US-201414533160-A
Country	US
Kind code	B2
Filing date	Nov 5, 2014
Priority date	Dec 5, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

The present invention relates to a liquid crystal display panel and a preparation method thereof. The liquid crystal display panel comprises: a first substrate having a display area and a sealant area, wherein the sealant area surrounds the display area; a second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and a sealant frame disposed on the sealant area of the first substrate, wherein the sealant frame includes a plurality of corner portions and a plurality of strip portions, wherein the adjacent strip portions intersect at one of the corner portions; and these corner portions includes a plurality of first corner portions and a plurality of second corner portions. Each of the first corner portion includes an arcuate peripheral edge adjacent to the display area, and each of the second corner portion includes an angular peripheral edge adjacent to the display area.

First claim

What is claimed is:

1. A liquid crystal display panel, comprising:
a first substrate having a display area and a sealant area, wherein the sealant area surrounds the display area;
a second substrate;
a liquid crystal layer disposed between the first substrate and the second substrate; and
a sealant frame disposed on the sealant area of the first substrate, wherein the sealant frame includes a plurality of corner portions and a plurality of strip portions, the adjacent strip portions intersect at one of the corner portions, and the corner portions includes a plurality of first corner portions and a plurality of second corner portions; wherein each of the first corner portion includes an arcuate peripheral edge adjacent to the display area, and each of the second corner portion includes an angular peripheral edge adjacent to the display area,
wherein a distance between the display area and the strip portion simultaneously connected to two of the first corner portions is larger than that between the display area and the strip portion simultaneously connected to the first corner portion and the second corner portion.

2. The liquid crystal display panel as claimed in claim 1 , wherein the angular peripheral edge includes a first peripheral edge and a second peripheral edge, and an angle included between the first peripheral edge and the second peripheral edge is substantially 90°.

3. The liquid crystal display panel as claimed in claim 1 , further comprising at least one spacer disposed on the first substrate or the second substrate and located between the display area and one of the second corner portions.

4. The liquid crystal display panel as claimed in claim 1 , wherein the first substrate includes at least one slit corresponding to one of the second corner portions.

5. A preparation method of a liquid crystal display panel, comprising the following steps:
(A) providing a first substrate having a display area and a sealant area surrounding the display area, wherein the display area has a first edge and a second edge connecting to the first edge;
(B) applying a first sealant on the sealant area along the first edge of the display area to form a plurality of strip portions and a plurality of first corner portions connecting the adjacent strip portions;
(C) applying a second sealant on the sealant area along the second edge of the display area to form at least one strip portion; and
(D) laminating a second substrate on the first substrate to dispose the first sealant and the second sealant between the first substrate and the second substrate,
wherein the first sealant and the second sealant intersect to form two second corner portions, each first corner portion respectively includes an arcuate peripheral edge adjacent to the display area, and each second corner portion respectively includes an angular peripheral edge adjacent to the display area, and
wherein a distance between the display area and the strip portion simultaneously connected to two of the first corner portions is larger than that between the display area and the strip portion simultaneously connected to the first corner portion and the second corner portion.

6. The preparation method as claimed in claim 5 , wherein the step (C) is performed before the step (B).

7. The preparation method as claimed in claim 5 , further comprising a step (E) after the step (D): cutting the first substrate and the second substrate along with the strip portions connecting to the two second corner portions.

8. The preparation method as claimed in claim 5 , wherein the angular peripheral edge includes a first peripheral edge and a second peripheral edge, and an angle included between the first peripheral edge and the second peripheral edge is substantially 90°.

9. The preparation method as claimed in claim 5 , further comprising a step (C 1 ) after the step (C): disposing a liquid crystal layer between the first substrate and the second substrate.

10. A liquid crystal display panel, comprising:
a first substrate having a display area and a sealant area, wherein the sealant area surrounds the display area;
a second substrate;
a liquid crystal layer disposed between the first substrate and the second substrate; and
a sealant frame disposed on the sealant area of the first substrate, wherein the sealant frame includes a plurality of corner portions and a plurality of strip portions, the adjacent strip portions intersect at one of the corner portions, and the corner portions includes a plurality of first corner portions and a plurality of second corner portions; wherein each of the first corner portion includes an arcuate peripheral edge adjacent to the display area, and each of the second corner portion includes an angular peripheral edge adjacent to the display area,
wherein a distance between the display area and the strip portion simultaneously connected two of the first corner portions is larger than that between the display area and the strip portion simultaneously connected two of the second corner portions.

11. The liquid crystal display panel as claimed in claim 10 , wherein the angular peripheral edge includes a first peripheral edge and a second peripheral edge, and an angle included between the first peripheral edge and the second peripheral edge is substantially 90°.

12. The liquid crystal display panel as claimed in claim 10 , further comprising at least one spacer disposed on the first substrate or the second substrate and located between the display area and one of the second corner portions.

13. The liquid crystal display panel as claimed in claim 10 , wherein the first substrate includes at least one slit corresponding to one of the second corner portions.

Assignees

• Innolux Corp

Inventors

• Wu Shih-Hsiung
• Lai Jui-Chu
• Sun Lung-Sheng
• Chang Chih-Hua

Classifications

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/1341

  Filling or closing of cells · CPC title