IP Library Granted Patent US 9,891,465
Granted Patent B2
US 9,891,465 · App. 14/876,641 · Granted Feb 13, 2018

Liquid crystal display apparatus and method of manufacturing the same

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Quick Facts
Patent No.
US 9,891,465
App. No.
14/876,641
Granted
Feb 13, 2018
Kind
B2
Abstract

Provided is a liquid crystal display (LCD) apparatus including: a first substrate including a first region realizing an image and a second region which transmits external light; a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a first polarizer arranged on a surface of the first substrate; and a second polarizer arranged between the second substrate and the liquid crystal layer and comprising a first polarization region positioned in the first region and a second polarization region positioned in the second region and having a polarization axis different from a polarization axis of the first polarization region.

Claims (21)

1. A liquid crystal display (LCD) apparatus comprising:

a first substrate comprising a first region realizing an image and a second region which transmits external light;

a second substrate facing the first substrate;

a liquid crystal layer disposed between the first substrate and the second substrate;

a first polarizer arranged on a surface of the first substrate; and

a second polarizer arranged between the second substrate and the liquid crystal layer and comprising a first polarization region positioned in the first region and a second polarization region positioned in the second region and having a polarization axis different from a polarization axis of the first polarization region.

2. The LCD apparatus of claim 1 , wherein a polarization axis of the first polarization region is substantially perpendicular to a polarization axis of the second polarization region.

3. The LCD apparatus of claim 2 , wherein the polarization axis of the first polarizer is substantially parallel to the polarization axis of the second polarization region.

4. The LCD apparatus of claim 2 , wherein the second polarizer comprises a wire-grid polarizer (WGP).

5. The LCD apparatus of claim 1 , wherein the second polarizer comprises a region where the first polarization region overlaps the second polarization region.

6. The LCD apparatus of claim 5 , wherein the region where the first polarization region overlaps the second polarization region corresponds to a boundary line between the first region and the second region.

7. The LCD apparatus of claim 5 , further comprising color filters respectively arranged in a first sub-pixel, a second sub-pixel, and a third sub-pixel and converting incident light into different colored light, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are included in the first region.

8. The LCD apparatus of claim 7 , wherein the region where the first polarization region overlaps the second polarization region corresponds to a region between the color filters.

9. The LCD apparatus of claim 7 , wherein the color filters are arranged between the second polarizer and the liquid crystal layer.

10. The LCD apparatus of claim 1 , wherein the first region and the second region are alternately arranged in one direction.

11. The LCD apparatus of claim 1 , wherein the first region and the second region are arranged in a checkered pattern.

12. The LCD apparatus of claim 1 , further comprising a pixel electrode and a common electrode which generate an electric field in the liquid crystal layer,

wherein the pixel electrode is not arranged in the second region.

13. The LCD apparatus of claim 1 , further comprising a light guide panel arranged on a surface opposite to a surface of the first substrate which faces the second substrate, and a light source unit configured to emit light toward the light guide panel.

14. The LCD apparatus of claim 13 , wherein the light source unit is arranged to face a side surface of the light guide panel, and

the light guide panel is formed of a material which transmits light.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2022
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 060778/0432 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 6, 2015
From: CHONG, JOONGGUN; KIM, HYUNGJUNE; LEE, HYONGCHEOL; IM, WANSOON; HWANG, JONGHAK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 036740/0804 →