Liquid crystal display

Patent metadata

Field	Value
Publication number	US-9812076-B2
Application number	US-201514695765-A
Country	US
Kind code	B2
Filing date	Apr 24, 2015
Priority date	Nov 11, 2014
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A liquid crystal display including: a liquid crystal display including: a first polarizer, a second polarizer, a gate line, a data line, a thin film transistor, a pixel electrode, a first light blocking member, a second light blocking member, a liquid crystal layer, and a common electrode; a color conversion panel including a third light blocking member and a color conversion media layer, the color conversion panel being disposed on the liquid crystal panel; and a backlight assembly configured to supply light to the liquid crystal panel and the color conversion panel, wherein the first light blocking member overlaps the data line, wherein the second light blocking member is disposed between the first light blocking member and the third light blocking member, the third light blocking member overlapping the first light blocking member, and wherein the third light blocking member overlaps the second light blocking member.

First claim

What is claimed is:

1. A liquid crystal display comprising:
a liquid crystal panel comprising a first polarizer, a second polarizer, a gate line, a data line, a thin film transistor, a pixel electrode, a first light blocking member, a second light blocking member, a liquid crystal layer, and a common electrode;
a color conversion panel comprising a third light blocking member and a color conversion media layer, the color conversion panel being disposed on the liquid crystal panel; and
a backlight assembly configured to supply light to the liquid crystal panel and the color conversion panel,
wherein the first light blocking member overlaps the data line,
wherein the second light blocking member is disposed between the first light blocking member and the third light blocking member, the third light blocking member overlapping the first light blocking member, and
wherein the third light blocking member overlaps the second light blocking member.

2. The liquid crystal display of claim 1 , wherein:
the backlight assembly comprises a blue light emitting diode configured to emit blue light;
the color conversion panel further comprises a color conversion substrate, the third light blocking member and the color conversion media layer being disposed on the color conversion substrate; and
the color conversion media layer comprises a red color conversion media layer, a green color conversion media layer, and a transparent layer.

3. The liquid crystal display of claim 2 , wherein:
the liquid crystal panel further comprises:
a first substrate, the first polarizer, the gate line, the data line, the thin film transistor, and the pixel electrode being disposed on the first substrate; and
a second substrate, the second polarizer, the first light blocking member, the second light blocking member, and the common electrode being disposed on the second substrate;

the pixel electrode and the common electrode face each other; and
the liquid crystal layer is disposed between the pixel electrode and the common electrode.

4. The liquid crystal display of claim 3 , wherein:
the gate line and the data line are disposed on a first surface of the first substrate;
the thin film transistor is connected with the gate line and the data line;
the pixel electrode is connected to the thin film transistor; and
the polarizer is provided on a second surface of the first substrate, the second surface opposing the first surface.

5. The liquid crystal display of claim 4 , wherein:
the first light blocking member is disposed on a first surface of the second substrate; and
the common electrode covers the first light blocking member, the common electrode being disposed on the first surface of the second substrate.

6. The liquid crystal display of claim 5 , wherein:
the second light blocking member is disposed on a second surface of the second substrate, the second surface opposing the first surface of the second substrate;
the second polarizer is disposed on the second light blocking member; and
the second polarizer contacts the third light blocking member, the color conversion media layer, and the transparent layer.

7. The liquid crystal display of claim 2 , wherein the liquid crystal panel further comprises a first substrate, the first polarizer, the second polarizer, the gate line, the data line, the thin film transistor, the pixel electrode, the first light blocking member, the second light blocking member, the liquid crystal layer, and the common electrode being disposed on the first substrate.

8. The liquid crystal display of claim 7 , wherein:
the first polarizer is disposed on a first surface of the first substrate;
the gate line and the data line are disposed on a second surface of the first substrate;
the thin film transistor is connected to the gate line and the data line;
the liquid crystal panel further comprises a passivation layer disposed on the thin film transistor; and
the first light blocking member is disposed on the passivation layer.

9. The liquid crystal display of claim 8 , wherein:
the pixel electrode is connected to the thin film transistor;
the common electrode faces the pixel electrode;
the liquid crystal panel further comprises a microcavity disposed between the pixel electrode and the common electrode; and
the liquid crystal layer is disposed in the microcavity.

10. The liquid crystal display of claim 9 , wherein:
the liquid crystal panel further comprises a roof layer covering the microcavity and a capping layer disposed on the microcavity,
the second light blocking member is disposed on the capping layer;
the second polarizer is disposed on the second light blocking member; and
the second polarizer contacts the third light blocking member, the color conversion media layer, and the transparent layer.

11. The liquid crystal display of claim 1 , wherein:
the backlight assembly comprises an ultraviolet ray light emitting diode configured to emit ultraviolet rays,
the color conversion panel further comprises:
a color conversion substrate, the third light blocking member and the color conversion media layer being disposed on the color conversion substrate; and
an ultraviolet ray blocking filter disposed between the color conversion substrate and the third light blocking member and the color conversion media layer; and

the color conversion media layer comprises a red color conversion media layer, a green color conversion media layer, and a blue color conversion media layer.

12. The liquid crystal display of claim 11 , wherein:
the liquid crystal panel further comprises:
a first substrate, the first polarizer, the gate line, the data line, the thin film transistor, and the pixel electrode being disposed on the first substrate; and
a second substrate, the second polarizer, the first light blocking member, the second light blocking member, and the common electrode being disposed on the second substrate;

the pixel electrode and the common electrode face each other; and
the liquid crystal layer is disposed between the pixel electrode and the common electrode.

13. The liquid crystal display of claim 12 , wherein:
the gate line and the data line are disposed on a first surface of the first substrate;
the thin film transistor is connected to the gate line and the data line;
the pixel electrode is connected to the thin film transistor; and
the first polarizer is disposed on a second surface of the first substrate, the second surface opposing the first surface.

14. The liquid crystal display of claim 13 , wherein:
the first light blocking member is disposed on a first surface of the second substrate; and
the common electrode covers the first light blocking member, the common electrode being disposed on the first surface of the second substrate.

15. The liquid crystal display of claim 14 , wherein:
the second light blocking member is disposed on a second surface of the second substrate, the second surface opposing the first surface of the second substrate;
the second polarizer is disposed on the second light blocking member; and
the second polarizer contacts the third light blocking member, the color conversion media layer, and the transparent layer.

16. The liquid crystal display of claim 11 , wherein the liquid crystal panel further comprises a first substrate, the first polarizer, the second polarizer, the gate line, the data line, the thin film transistor, the pixel electrode, the first light blocking member, the second light blocking member, the liquid crystal layer, and the common electrode are disposed on the first substrate.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Kwang Keun
• Kwon Jung Hyun
• Kim Young Min
• Nam Min Ki
• Park Hae Il

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G02F1/133617

  Illumination with ultraviolet light; Luminescent elements or materials associated to the cell · CPC title

• G02F2201/40

  Arrangements for improving the aperture ratio · CPC title

• G02F2201/086

  UV absorbing · CPC title

• G02F2202/36

  Micro- or nanomaterials · CPC title