Display panel

Patent metadata

Field	Value
Publication number	US-2017235196-A1
Application number	US-201715499781-A
Country	US
Kind code	A1
Filing date	Apr 27, 2017
Priority date	Feb 9, 2015
Publication date	Aug 17, 2017
Grant date	—

Abstract

A display panel including a first substrate, a second substrate and a display medium is provided. The first substrate includes a base substrate, a gate, an active layer, a source, a drain, and a shielding structure. The gate is disposed on the base substrate. The active layer is electrically insulated from and disposed correspondingly to the gate. The source and the drain are electrically connected to the active layer. The shielding structure is disposed on the active layer and overlaps with at least part of the active layer. The shielding structure includes a metal layer and a metal oxide or metal nitride layer. The shielding structure is electrically insulated from the source. The display medium is disposed between the first substrate and the second substrate.

First claim

What is claimed is:

1 . A display panel, comprising:
a first substrate, comprising:
a base substrate;
a gate disposed on the base substrate;
an active layer electrically insulated from and disposed correspondingly to the gate;
a source and a drain electrically connected to the active layer; and
a shielding structure disposed on the active layer, wherein the shielding structure overlaps with at least part of the active layer and comprises a metal layer and a metal oxide or metal nitride layer, and wherein the shielding structure is electrically insulated from the source;
a second substrate; and a display medium disposed between the first substrate and the second substrate.

2 . The display panel according to claim 1 , wherein the first substrate further comprises:
a first protection layer disposed between the source and the shielding structure.

3 . The display panel according to claim 1 , wherein the second substrate comprises a light-shielding matrix, and the light-shielding matrix comprises:
a plurality of first light-shielding portions; and a plurality of first opening portions exposed by the plurality of first light-shielding portions, wherein the plurality of first light-shielding portions are disposed at intervals and extend along a first direction, and at least part of a vertical projection of the active layer on the second substrate overlaps with the first opening portion.

4 . The display panel according to claim 2 , wherein the first substrate further comprises:
a planarization layer disposed on the first protection layer.

5 . The display panel according to claim 4 , wherein the first substrate further comprises:
a via penetrating the planarization layer and the first protection layer to expose a surface of the drain; and a first electrode, wherein at least part of the first electrode is disposed in the via, such that the first electrode is electrically connected to the surface of the drain.

6 . The display panel according to claim 5 , wherein the second substrate comprises a light-shielding matrix, and the light-shielding matrix comprises:
a plurality of first light-shielding portions; a plurality of second light-shielding portions; and a plurality of second opening portions exposed by the plurality of first light-shielding portions and the plurality of second light-shielding portions, wherein the plurality of first light-shielding portions are disposed at intervals and extend along a first direction, the plurality of second light-shielding portions extend along a second direction different from the first direction, at least one of the plurality of second light-shielding portions has a bar portion and a protrusion protruded from a side of the bar portion, the protrusion shields the via, and at least part of a vertical projection of the active layer on the second substrate overlaps with the second opening portion.

7 . The display panel according to claim 1 , wherein the metal oxide or metal nitride layer comprises an electrode.

8 . The display panel according to claim 1 , wherein the metal oxide or metal nitride layer is formed of a material comprising indium tin oxide or indium zinc oxide.

9 . The display panel according to claim 1 , wherein the metal layer is formed of a material selected from the group consisting of aluminum, molybdenum, chromium, nickel, copper, iron, neodymium, an alloy thereof, and a mixture thereof.

10 . The display panel according to claim 1 , wherein the metal oxide or metal nitride layer is not in contact with the metal layer.

11 . The display panel according to claim 10 , wherein the metal oxide or metal nitride layer is at a bottom side of the metal layer.

12 . The display panel according to claim 10 , wherein the metal oxide or metal nitride layer is at a top side of the metal layer.

13 . The display panel according to claim 1 , wherein the metal oxide or metal nitride layer is in contact with the metal layer.

14 . The display panel according to claim 13 , wherein the metal oxide or metal nitride layer is at a bottom side of the metal layer.

15 . The display panel according to claim 13 , wherein the metal oxide or metal nitride layer is at a top side of the metal layer.

Assignees

• Innolux Corp

Inventors

• Lai Hsiao-Ping
• Lu Chao-Liang
• Yan Tzu-Min
• Hsieh Tsau-Hua

Classifications

• G02F1/136227

  Through-hole connection of the pixel electrode to the active element through an insulation layer · CPC title

• G02F2201/123

  pixel · CPC title

• G02F1/1362

  Active matrix addressed cells {(G02F1/134336, G02F1/134363 take precedence)} · CPC title

• G02F1/136209 Primary

  Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title

• G02F2201/121

  common or background · CPC title