LIQUID CRYSTAL DISPLAYS AND THE VERTICAL ALIGNMENT LIQUID CRYSTAL PANELS THEREOF

• US 20160363827A1
• Filed: 06/17/2015
• Published: 12/15/2016
• Est. Priority Date: 06/15/2015
• Status: Abandoned Application

• Current Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: XIE, Chang
• Application Number:
  US14/761,114
• Publication Number:
  US 20160363827A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134318 having a patterned common electrode
• CPC Class Codes: G02F 1/134381 Hybrid switching mode, i.e. for applying an electric field with components parallel and orthogonal to the substrates

Abstract

The present disclosure relates to a liquid crystal display and the vertical alignment liquid crystal panel thereof. The liquid crystal panel includes a first substrate having at least one pixel electrode and at least one common electrode, and a second substrate having at least one twisted electrode. The twisted electrode corresponds to one of the common electrode and the pixel electrodes. When being applied with the voltage, a tilt electrical field is formed between the twisted electrode and the common electrode such that the vertically aligned liquid crystals are controlled to reorientate. In this way, the dark stripes of the liquid crystal panel may be eliminated so as to enhance the transmission rate.

Claims

1. A vertical alignment liquid crystal panel, comprising:

a first substrate, a second substrate opposite to the first substrate, and positive liquid crystals between the first substrate and the second substrate, the first substrate comprising at least one pixel electrode and at least one common electrode, the common electrode and the pixel electrode are stripe-like structures arranged along a surface of the first substrate, and the common electrode and the pixel electrode are spaced apart from each other, the second substrate comprising at least one stripe-like twisted electrodes arranged along the surface of the second substrate, and the twisted electrodes being spaced apart from each, the twisted electrode being configured to be corresponding to the common electrode, when the common electrode, the pixel electrode, and the twisted electrode being applied with a voltage, a horizontal electrical field being formed between the common electrode and the pixel electrode and a tilt electrical field being formed between the twisted electrode and the common electrode such that the vertically aligned liquid crystals are controlled to reorientate by the horizontal electrical field and the tilt electrical field.

2. The liquid crystal panel as claimed in claim 1, wherein the voltage being applied to the twisted electrode and the common electrode are the same.

3. The liquid crystal panel as claimed in claim 1, wherein the voltage being applied to the twisted electrode and the common electrode are different.

4. A vertical alignment liquid crystal panel, comprising:

a first substrate, a second substrate opposite to the first substrate, and positive liquid crystals between the first substrate and the second substrate, the first substrate comprising at least one pixel electrode and at least one common electrode, the second substrate comprising at least one twisted electrodes arranged along the surface of the second substrate, the twisted electrode being configured to be corresponding to one of the common electrode and the pixel electrode, and when the common electrode, the pixel electrode, and the twisted electrode being applied with a voltage, a tilt electrical field being formed between the twisted electrode and the corresponding common electrode or the corresponding pixel electrodes such that the vertically aligned liquid crystals are controlled to reorientate.

5. The liquid crystal panel as claimed in claim 4, wherein the twisted electrode is configured to be corresponding to the common electrode, when the common electrode, the pixel electrode, and the twisted electrode being applied with the voltage, a horizontal electrical field is formed between the common electrode and the pixel electrode and a tilt electrical field is formed between the twisted electrode and the common electrode such that the vertically aligned liquid crystals are controlled to reorientate by the horizontal electrical field and the tilt electrical field.

6. The liquid crystal panel as claimed in claim 5, wherein the voltage being applied to the twisted electrode and the common electrode are the same.

7. The liquid crystal panel as claimed in claim 5, wherein the voltage being applied to the twisted electrode and the common electrode are different.

8. The liquid crystal panel as claimed in claim 4, wherein the twisted electrode is configured to be corresponding to the pixel electrode, when the common electrode, the pixel electrode, and the twisted electrode being applied with the voltage, a horizontal electrical field is formed between the common electrode and the pixel electrode and a tilt electrical field is formed between the twisted electrode and the pixel electrode such that the vertically aligned liquid crystals are controlled to reorientate by the horizontal electrical field and the tilt electrical field.

9. The liquid crystal panel as claimed in claim 8, wherein the voltage being applied to the twisted electrode and the common electrode are the same.

10. The liquid crystal panel as claimed in claim 8, wherein the voltage being applied to the twisted electrode and the common electrode are different.

11. The liquid crystal panel as claimed in claim 4, wherein the common electrode and the pixel electrode are stripe-like structures arranged along a surface of the first substrate, and the common electrode and the pixel electrode are spaced apart from each other, and the second substrate comprises at least one stripe-like twisted electrodes arranged along the surface of the second substrate.

12. The liquid crystal panel as claimed in claim 4, wherein the liquid crystals are positive liquid crystals.

13. A liquid crystal display (LCD), comprising:

a first substrate, a second substrate opposite to the first substrate, and positive liquid crystals between the first substrate and the second substrate, the first substrate comprising at least one pixel electrode and at least one common electrode, the second substrate comprising at least one twisted electrodes, the twisted electrode being configured to be corresponding to one of the common electrode and the pixel electrode, and when the common electrode, the pixel electrode, and the twisted electrode being applied with a voltage, a tilt electrical field being formed between the twisted electrode and the corresponding common electrode or the corresponding pixel electrodes such that the vertically aligned liquid crystals are controlled to reorientate.

14. The LCD as claimed in claim 13, wherein the twisted electrode is configured to be corresponding to the common electrode, when the common electrode, the pixel electrode, and the twisted electrode being applied with the voltage, a horizontal electrical field is formed between the common electrode and the pixel electrode and a tilt electrical field is formed between the twisted electrode and the common electrode such that the vertically aligned liquid crystals are controlled to reorientate by the horizontal electrical field and the tilt electrical field.

15. The LCD as claimed in claim 13, wherein the twisted electrode is configured to be corresponding to the pixel electrode, when the common electrode, the pixel electrode, and the twisted electrode being applied with the voltage, a horizontal electrical field is formed between the common electrode and the pixel electrode and a tilt electrical field is formed between the twisted electrode and the common electrode such that the vertically aligned liquid crystals are controlled to reorientate by the horizontal electrical field and the tilt electrical field.

16. The LCD as claimed in claim 13, wherein the voltage being applied to the twisted electrode and the common electrode are the same.

17. The LCD as claimed in claim 13, wherein the voltage being applied to the twisted electrode and the common electrode are different.

18. The LCD as claimed in claim 13, wherein the common electrode and the pixel electrode are stripe-like structures arranged along a surface of the first substrate, and the common electrode and the pixel electrode are spaced apart from each other, the second substrate comprising at least one stripe-like twisted electrodes arranged along the surface of the second substrate, and the twisted electrodes being spaced apart from each.

19. The LCD as claimed in claim 13, wherein the liquid crystals are positive liquid crystals.