LCD panel and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9507217-B2
Application number	US-201414417078-A
Country	US
Kind code	B2
Filing date	Dec 23, 2014
Priority date	Dec 17, 2014
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

An LCD panel and a manufacturing method thereof are provided, the panel includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate is disposed with a pixel electrode, a TFT and a storage capacitor. The pixel electrode includes a main pixel area and a sub-pixel area. A first color resistance thickness of the main pixel area is greater than a second color resistance thickness of the sub-pixel area. The present invention improves the displaying effect of a large view angle via various color resistances thicknesses.

First claim

What is claimed is:

1. An LCD panel, comprising a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate, wherein the LCD panel further comprises the following on the first substrate:
a pixel electrode comprising at least one main pixel area, at least one sub-pixel area, at least one first transitional pixel area, and at least one second transitional pixel area, wherein a first color resistance thickness of the main pixel area is greater than a second color resistance thickness of the sub-pixel area, the first transitional pixel area is disposed between the main pixel area and the sub-pixel area, a third color resistance thickness of the first transitional pixel area is between the first color resistance thickness and the second color resistance thickness, and the third color resistance thickness is a preset height or has heights in a gradient range, the second transitional pixel area is disposed on one side or two sides of a first through hole and/or a second through hole, and a fourth color resistance thickness of the second transitional pixel area has heights in a gradient range decreasing from the first color resistance thickness or from the second color resistance thickness;
a TFT connected to a data line, a scanning line, and the pixel electrode respectively; and
a storage capacitor connected to the pixel electrode;
wherein the first through hole penetrates from the pixel electrode into the TFT, and a metal layer is laid on a surface of the pixel electrode and the first through hole to form the data line for connecting the data line to the pixel electrode.

2. The LCD panel as claimed in claim 1 , wherein the first transitional pixel area is shaped to be triangular, stepped, or circular arc.

3. The LCD panel as claimed in claim 1 , wherein the second through hole penetrates from the pixel electrode to the storage capacitor, and a metal layer is laid on the surface of the pixel electrode and the second through hole, for connecting the pixel electrode and the storage capacitor.

4. The LCD panel as claimed in claim 3 , wherein the second transitional pixel area is shaped to be triangular, stepped, or circular arc.

5. The LCD panel as claimed in claim 1 , wherein the TFT comprises:
a gate electrode connected to the scanning line;
a source electrode connected to the data line for receiving putted electrons;
a drain electrode connected to the pixel electrode, for outputting the electrons; and
an active layer made by indium gallium zinc oxide, for forming an electric conducting channel.

6. An LCD panel, comprising a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate, wherein the LCD panel further comprises the following on the first substrate:
a pixel electrode comprising at least one main pixel area and at least one sub-pixel area, wherein a first color resistance thickness of the main pixel area is greater than a second color resistance thickness of the sub-pixel area;
a TFT connected to a data line, a scanning line and the pixel electrode respectively; and
a storage capacitor connected to the pixel electrode;
wherein a first through hole is formed on the pixel electrode, the first through hole penetrates from the pixel electrode to the TFT, and a metal layer is laid on a surface of the pixel electrode and the first through hole to form the data line, for connecting the data line to the pixel electrode.

7. The LCD panel as claimed in claim 6 , wherein the pixel electrode further comprises at least one first transitional pixel area disposed between the main pixel area and the sub-pixel area, a third color resistance thickness of the first transitional pixel area is between the first color resistance thickness and the second color resistance thickness, and the third color resistance thickness is a preset height or has heights in a gradient range.

8. The LCD panel as claimed in claim 7 , wherein the first transitional pixel area is shaped to be triangular, stepped, or circular arc.

9. The LCD panel as claimed in claim 6 , wherein a second through hole is formed on the pixel electrode, the second through hole penetrates from the pixel electrode to the storage capacitor, and the metal layer is laid on the surface of the pixel electrode and the second through hole, for connecting the pixel electrode and the storage capacitor.

10. The LCD panel as claimed in claim 9 , wherein the pixel electrode further comprises a second transitional pixel area disposed on one side or two sides of the first through hole and/or the second through hole, a fourth color resistance thickness of the second transitional pixel area has heights in a gradient range decreasing from the first color resistance thickness or from the second color resistance thickness.

11. The LCD panel as claimed in claim 10 , wherein the second transitional pixel area is shaped to be triangular, stepped, or circular arc.

12. The LCD panel as claimed in claim 6 , wherein the TFT comprises:
a gate electrode connected to the scanning line;
a source electrode connected to the data line, for receiving inputted electrons;
a drain electrode connected to the pixel electrode, for outputting the electrons; and
an active layer made by indium gallium zinc oxide, for forming an electric conducting channel.

13. A manufacturing method for an LCD panel, comprising the following steps:
preparing a first substrate;
preparing a TFT, a storage capacitor and a pixel electrode on the first substrate, the pixel electrode comprising at least one main pixel area and at least one sub-pixel area, a first color resistance thickness of the main pixel area is greater than a second color resistance thickness of the sub-pixel area;
preparing a second substrate; and
filling liquid crystal molecules in a gap between the first substrate and the second substrate, for forming a liquid crystal layer;
wherein a first through hole is formed on the pixel electrode, the first through hole penetrates from the pixel electrode to the TFT, and a metal layer is laid on a surface of the pixel electrode and the first through hole to form a data line, for connecting the data line to the pixel electrode.

14. The manufacturing method as claimed in claim 13 , wherein the step of preparing the pixel electrode, further comprises:
preparing at least one first transitional pixel area disposed between the main pixel area and the sub-pixel area, a third color resistance thickness of the first transitional pixel area is formed between the first color resistance thickness and the second color resistance thickness; and/or
preparing at least one second transitional pixel area disposed on two sides of the first through hole between the TFT and the pixel electrode, and/or a second through hole between the storage capacitor and the pixel electrode, a fourth color resistance thickness of the second transitional pixel area has heights in a gradient range decreasing from the first color resistance thickness or from the second color resistance thickness.

Assignees

• Shenzhen China Star Optoelect

Inventors

• Xiong Yuan

Classifications

• H10D86/481

  integrated with passive devices, e.g. auxiliary capacitors · CPC title

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10D86/021

  of multiple TFTs · CPC title

• G02F1/136213 Primary

  Storage capacitors associated with the pixel electrode · CPC title