Display panel

Patent metadata

Field	Value
Publication number	US-9522513-B2
Application number	US-201514666191-A
Country	US
Kind code	B2
Filing date	Mar 23, 2015
Priority date	Apr 29, 2014
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

A display panel is provided. The display panel comprises a first substrate, a second substrate and a sealant. The first substrate has a display area. The second substrate is opposite to the first substrate. The sealant is disposed between the first substrate and the second substrate, and surrounds and encloses the display area. The sealant comprises a plurality of node portions and a plurality of strip portions. The maximum width of the node portion is larger than the width of the strip portion. The node portions include a first node portion. The first node portion and two strip portions adjacent thereto form a first angle facing the display area. The first angle is larger than 90 degree.

First claim

What is claimed is:

1. A display panel, comprising:
a first substrate having a display area, and a border area adjacent to the display area, surrounding an edge of the display area and extending to an edge of the first substrate;
a second substrate opposite to the first substrate;
a sealant disposed between the first substrate and the second substrate, wherein the sealant surrounds and encloses the display area, the sealant comprises a plurality of node portions and a plurality of strip portions, a maximum width of each node portion is larger than a width of each strip portion, and each node portion is interposed at a junction between two adjacent strip portions;
a flat layer disposed on the first substrate, wherein the flat layer disposed on the border area has an opening exposing the first substrate, and the sealant is disposed in the opening; and
a transparent electrode layer disposed on the flat layer, wherein the opening has an inner edge adjacent to the transparent electrode layer, and a distance from the inner edge to an edge of the transparent electrode layer is between 10 μm and 100 μm;
wherein the node portions include a first node portion, the first node portion and two strip portions adjacent thereto form a first angle facing the display area, and the first angle is larger than 90 degrees.

2. The display panel according to claim 1 , wherein the node portions include a second node portion, the second node portion and two strip portions adjacent thereto form a second angle facing the display area, and the second angle is smaller than the first angle.

3. The display panel according to claim 2 , wherein a maximum width of the first node portion which is at a vertex of the first angle is smaller than a maximum width of the second node portion which is at a vertex of the second angle.

4. The display panel according to claim 1 , wherein the display area has a geometric center, and a distance from the geometric center to each node portion is larger than a vertical distance from the geometric center to the strip portions adjacent to the node portion.

5. The display panel according to claim 1 , wherein each strip portion is a straight line segment.

6. The display panel according to claim 1 , wherein a width of the sealant is larger than a width of the opening.

7. The display panel according to claim 1 , wherein in the border area, a height of part of the flat layer adjacent to the display area is larger than a height of part of the flat layer adjacent to the edge of the first substrate.

8. The display panel according to claim 1 , wherein the opening has an outer edge away from the transparent electrode layer, and a distance from the inner edge to the outer edge is between 150 μm and 400 μm.

9. The display panel according to claim 1 , wherein the opening has an outer edge away from the transparent electrode layer, and the sealant covers part of the flat layer that is adjacent to the outer edge.

10. A display panel, comprising:
a first substrate having a display area;
a second substrate opposite to the first substrate; and
a sealant disposed between the first substrate and the second substrate, wherein the sealant surrounds and encloses the display area, the sealant comprises a plurality of node portions and a plurality of strip portions, a maximum width of each node portion is larger than a width of each strip portion, and each node portion is interposed at a junction between two adjacent strip portions;
wherein the node portions include a first node portion, the first node portion and two strip portions adjacent thereto form a first angle facing the display area, and the first angle is larger than 90 degrees;
wherein the display area has a concave arc edge concaving toward a geometric center of the display area, the node portions include a third node portion corresponding to the concave arc edge, the third node portion and two strip portions adjacent thereto form a third angle facing the display area, and the third angle is larger than 180 degrees.

11. The display panel according to claim 10 , wherein the display area has, an acute angle, the sealant corresponding to the acute angle shape has a plurality of sub-node portions, and a maximum width of each sub-node portion is larger than the maximum width of the node portion.

12. A display panel, comprising:
a first substrate having a display area and a border area adjacent to the display area, surrounding an edge of the display area and extending to an edge of the first substrate;
a second substrate opposite to the first substrate;
a flat layer disposed on the first substrate, wherein the flat layer disposed on the border area has an opening exposing the first substrate, and the sealant is disposed in the opening; and
a sealant disposed between the first substrate and the second substrate, wherein the sealant surrounds and encloses the display area, the sealant comprises a plurality of node portions and a plurality of strip portions, a maximum width of each node portion is larger than a width of each strip portion, and each node portion is interposed at a junction between two adjacent strip portions;
wherein the node portions include a first node portion, the first node portion and two strip portions adjacent thereto form a first angle facing the display area, and the first angle is larger than 90 degrees;
wherein in the border area, a height of part of the flat layer adjacent to the display area is larger than a height of part of the flat layer adjacent to the edge of the first substrate.

Assignees

• Innolux Corp

Inventors

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

Classifications

• B32B2307/412

  Transparent · CPC title

• B32B3/266 Primary

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• B32B7/14

  applied in spaced arrangements, e.g. in stripes · CPC title

• B32B2307/206

  Insulating · CPC title

• B32B2457/20

  Displays, e.g. liquid crystal displays, plasma displays · CPC title