IP Library Granted Patent US 10,473,983
Granted Patent B2
US 10,473,983 · App. 15/818,021 · Granted Nov 12, 2019

Display panel

Inventors: Masafumi Hirata (Hyogo, JP); Nagatoshi Kurahashi (Hyogo, JP)
Assignee: Panasonic Liquid Crystal Display Co., Ltd.
G02F1/1339G02F1/133512G02F1/136286G02F2201/123G02F2201/50G02F2201/56G02F2202/023
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Quick Facts
Patent No.
US 10,473,983
App. No.
15/818,021
Granted
Nov 12, 2019
Kind
B2
Abstract

A display panel has a variant external shape. The display panel includes a first substrate, a second substrate disposed opposite to the first substrate, liquid crystal sealed between the first substrate and the second substrate, a seal made of a photosetting material, the seal being provided outside a display region, the seal being used to seal the liquid crystal by bonding the first substrate and the second substrate together, and a metallic pattern provided in the first substrate or the second substrate, including a plurality of slits through which light with which the seal is irradiated passes. The plurality of slits are formed along the external shape of the display panel in at least a portion corresponding to a variant portion of the display panel.

Claims (20)

1. A display panel having a variant external shape, the display panel comprising:

a first substrate;

a second substrate disposed opposite to the first substrate;

liquid crystal sealed between the first substrate and the second substrate;

a seal made of a photosetting material, the seal being provided outside a display region, the seal being used to seal the liquid crystal by bonding the first substrate and the second substrate together; and

a metallic pattern provided on the first substrate or the second substrate, the metallic pattern including a plurality of slits through which light with which the seal is irradiated passes,

wherein the display panel has a variant portion, a first non-variant portion, and a second non-variant portion disposed in an outer region of the display panel, the variant portion being disposed between the first non-variant portion and the second non-variant portion along an external shape of the display panel,

the metallic pattern includes a first metallic pattern in the variant portion, a second metallic pattern in the first non-variant portion, and a third metallic pattern in the second non-variant portion, the first metallic pattern being formed along the external shape of the variant portion of the display panel from a first boundary between the variant portion and the first non-variant portion to a second boundary between the variant portion and the second non-variant portion,

the plurality of slits including first slits in the variant portion, second slits in the first non-variant portion, and third slits in the second non-variant portion, the first slits being formed in the first metallic pattern along the external shape of the variant portion of the display panel from the first boundary to the second boundary, and

the metallic pattern overlaps with the seal at the variant portion of the display panel in plan view.

2. The display panel according to claim 1 ,

wherein the variant portion of the display panel and the first slits in the first metallic pattern are formed into an arc shape, and

the first slits are formed such that a central position of a circle in the variant portion of the display panel is substantially matched with a central position of a circle in each of the first slits.

3. The display panel according to claim 1 , wherein the metallic pattern is provided on the first substrate, and irradiated with the light from a rear surface side of the first substrate.

4. The display panel according to claim 3 , wherein the first substrate includes a plurality of data lines, a plurality of gate lines, and a plurality of pixel electrodes, and the second substrate includes a black matrix.

5. The display panel according to claim 1 , wherein a common voltage is supplied to the metallic pattern.

6. The display panel according to claim 1 , wherein a part of the metallic pattern is exposed from the seal at the portion corresponding to the variant portion of the display panel.

7. The display panel according to claim 6 , wherein the part of metallic pattern contacts an alignment film.

8. The display panel according to claim 1 , wherein the metallic pattern is different from a data line.

9. The display panel according to claim 1 , wherein the metallic pattern is different from a gate line.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 064292/0775 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 13, 2018
From: HIRATA, MASAFUMI; KURAHASHI, NAGATOSHI
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 044919/0039 →
Priority Claims (1)
JP 2015-103131 · May 20, 2015 · national
Continuity (2)
Continuation PCTJP2016001071 · Feb 26, 2016
Related Publication 20180074353A1 · Mar 15, 2018