Curved display device

Patent metadata

Field	Value
Publication number	US-2016202579-A1
Application number	US-201514982766-A
Country	US
Kind code	A1
Filing date	Dec 29, 2015
Priority date	Jan 8, 2015
Publication date	Jul 14, 2016
Grant date	—

Abstract

A curved display device may include a pixel electrode, a transistor, a curved light blocking member, and a light blocking portion. The transistor may be electrically connected to the pixel electrode. The curved light blocking member may overlap the transistor. The light blocking portion may be directly connected to the curved light blocking member and may be perpendicular to a geometric radius of curvature associated with the curved light blocking member.

First claim

What is claimed is:

1 . A curved display device comprising:
a pixel electrode; a first thin film transistor, which is electrically connected to the pixel electrode; a first curved light blocking member, which overlaps the first thin film transistor; and a light blocking portion, which is directly connected to the first curved light blocking member and is perpendicular to a first geometric radius of curvature associated with the first curved light blocking member.

2 . The curved display device of claim 1 , wherein the light blocking portion is perpendicular to the first curved light blocking member in a plan view of the curved display device.

3 . The curved display device of claim 1 , further comprising:
a second pixel electrode; a second thin film transistor, which is electrically connected to the second pixel electrode, wherein the first thin film transistor is oriented according to a first geometric plane, wherein the second thin film transistor is oriented according to a second geometric plane, wherein the second geometric plane is different from the first geometric plane and is not parallel to the first geometric plane, and wherein the first curved light blocking member overlaps both the first thin film transistor and the second thin film transistor.

4 . The curved display device of claim 1 , further comprising a second thin film transistor,
wherein the pixel electrode includes a first subpixel electrode and a second subpixel electrode, wherein the first thin film transistor is electrically connected to the first subpixel electrode, wherein the second thin film transistor is electrically connected to the second subpixel electrode, and wherein the first curved light blocking member covers both the first thin film transistor and the second thin film transistor.

5 . The curved display device of claim 4 , wherein the first subpixel electrode is aligned with the second subpixel electrode in a direction perpendicular to a second geometric radius of curvature associated with the first curved light blocking member.

6 . The curved display device of claim 4 , wherein the first thin film transistor overlaps the first curved light blocking member in an extending direction of a second geometric radius of curvature associated with the first curved light blocking member.

7 . The curved display device of claim 4 , wherein the first subpixel electrode receives a first voltage, wherein the second subpixel receives a second voltage, wherein a value of the second voltage is unequal to a value of the first voltage.

8 . The curved display device of claim 1 , further comprising a curved gate line, which is electrically connected to a gate electrode of the first thin film transistor and overlaps the first curved light blocking member.

9 . The curved display device of claim 1 , further comprising:
a second thin film transistor, a second curved light blocking member, which overlaps the second thin film transistor, wherein the pixel electrode includes a first subpixel electrode and a second subpixel electrode, wherein the first thin film transistor is electrically connected to the first subpixel electrode, and wherein the second thin film transistor is electrically connected to the second subpixel electrode.

10 . The curved display device of claim 9 , wherein at least one of the first subpixel electrode and the second subpixel electrode is positioned between the first thin film transistor and the second thin film transistor in a plan view of the curved display device.

11 . The curved display device of claim 9 , wherein the second curved light blocking member is parallel to the first curved light blocking member.

12 . The curved display device of claim 9 , wherein a first side of the first subpixel electrode is parallel to the first curved light blocking member in a plan view of the curved display device, wherein a second side of the first subpixel electrode is parallel to the light blocking portion in the plan view of the curved display device, and wherein the first side of the first subpixel electrode is longer than the second side of the first subpixel electrode.

13 . The curved display device of claim 9 , further comprising:
a first curved data line, which is electrically connected to a source electrode of the first thin film transistor and overlaps the first curved light blocking member; and a second curved data line, which is electrically connected to a source electrode of the second thin film transistor and overlaps the second curved light blocking member.

14 . The curved display device of claim 9 , further comprising a gate line, which is electrically connected to a gate electrode of the first thin film transistor and overlaps the light blocking portion.

15 . The curved display device of claim 9 , wherein the light blocking portion is positioned between the first thin film transistor and the second thin film transistor in a plan view of the curved display device.

16 . The curved display device of claim 1 , further comprising:
a first driver, which is configured to generate a first set of signals for a first portion of the curved display device; and a second driver, which is configured to generate a second set of signals for a second portion of the curved display device, wherein the first curved light blocking member is positioned between the first driver and the second driver in a plan view of the curved display device.

17 . The curved display device of claim 1 , further comprising:
a first driver, which is configured to generate a first set of signals for a first portion of the curved display device; and a second driver, which is configured to generate a second set of signals for a second portion of the curved display device, wherein the first curved light blocking member is aligned with the first driver in a direction in a plan view of the curved display device and is not aligned with the second driver in the direction in the plan view of the curved display device.

18 . A curved display device comprising:
a substrate, which is bent with respect to a first direction; a first thin film transistor; a pixel electrode electrically connected to the first thin film transistor; and a light blocking member disposed on the substrate and comprising a first light blocking portion, wherein the first light blocking portion extends in the first direction in a plan view of the curved display device and overlaps the first thin film transistor.

19 . The curved display device of claim 18 , further comprising:
a gate line electrically connected to a gate electrode of the first thin film transistor; and a data line electrically connected to a source electrode of the first thin film transistor, wherein the first light blocking portion overlaps at least one of the gate line and the data line.

20 . The curved display device of claim 19 , further comprising a second thin film transistor, wherein the first thin film transistor is electrically connected to a first subpixel electrode of the pixel electrode, wherein the second thin film transistor is electrically connected to a second subpixel electrode of the pixel electrode, wherein the light blocking member further comprises a second light blocking portion, and wherein the second light blocking extends perpendicular to the first light blocking portion in the plan view of the curved display device and is positioned between the first thin film transistor and the second thin film transistor in the plan view of the curved

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Jong-Keun
• Son Jeong Man
• Lee Jin Young
• Ye Dong Hee

Classifications

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F2001/134345

  Physics · mapped topic

• G02F1/13624

  having more than one switching element per pixel · CPC title

• G02F1/134309

  characterised by their geometrical arrangement · 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