DISPLAY PANEL AND DISPLAY APPARATUS

• US 20160313602A1
• Filed: 04/07/2015
• Published: 10/27/2016
• Est. Priority Date: 03/30/2015
• Status: Active Grant

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.), 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
• Granted Patent: US 9,904,101 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133526 Lenses, e.g. microlenses or Fresnel lenses
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: G02F 1/133555 Transflectors
• CPC Class Codes: G02F 1/133567 on the back side

Abstract

A display panel and a display device module are disclosed. A TFT array substrate contained in the display panel includes a second substrate, a pixel electrode layer, a carrier layer, and a reflective layer. The second substrate includes a first region and a second region. A carrier platform contained in the carrier layer is disposed on the pixel electrode layer, in which a position of the carrier platform corresponds with the second region; and a reflection sheet contained in the reflective layer is disposed on the carrier platform, wherein the reflection sheet has a first reflective surface and a second reflective surface. The present invention improves the utilization of light in the backlight module.

Claims

1. A display panel comprising:

a color film substrate, which includes a first substrate, a color film layer and a common electrode layer;

a liquid crystal layer; and

a TFT array substrate, which comprises;

a second substrate including at least a first region and at least a second region;

a pixel electrode layer disposed on the first surface of the second substrate;

a carrier layer including at least one carrier platform disposed on the pixel electrode layer, wherein a position of the carrier platform corresponds with the second region; and

a reflective layer including at least one reflection sheet disposed on the carrier platform, wherein the reflection sheet has a first reflective surface and a second reflective surface and the reflection sheet is configured to reflect a first beam of light and a second beam of light, in which the first beam of light is a beam of light directed from outside the display panel to the first substrate and enters into the reflection sheet, and the second beam of light is a beam of light directed from outside the display panel to the second substrate and enters into the light reflection sheet;

the display panel further comprising;

a first polarizer disposed on the first substrate; and

a second polarizer disposed on the second surface of the second substrate, the second polarizer including at least one hollow zone where the position of the hollow zone corresponds with the second region, the hollow zone being configure to reflect the second beam of light by transmitting the second beam of light through the light reflection sheet;

wherein the pixel electrode layer includes a first electrode and a second electrode, the first electrode is disposed on the first region and the second electrode is disposed on the second region;

wherein the first electrode is configured to apply directly a first electric field force to a first liquid crystal molecules which are located in the first region so that the first liquid crystal molecules deflect; and

wherein the second electrode is configured to apply a second electric field force to a second liquid crystal molecules which are located in the second region through the carrier platform and the reflection sheet so that the second liquid crystal molecules deflect.

2. The display panel according to claim 1, wherein the carrier layer is a transparent or translucent resin layer configured to carry the reflection sheet and transmit the second beam of light.

6. The display panel according to claim 1, wherein the carrier layer is a transparent or translucent resin layer configured to carry the reflection sheet and transmit the second beam of light.

3. A display panel comprising:

a color film substrate, which includes a first substrate, a color film layer, and a common electrode layer;

a liquid crystal layer; and

a TFT array substrate, which comprises;

a second substrate including at least a first region and at least a second region;

a pixel electrode layer disposed on the first surface of the second substrate;

a carrier layer including at least one carrier platform disposed on the pixel electrode layer, wherein a position of the carrier platform corresponds with the second region; and

a reflective layer including at least one reflection sheet disposed on the carrier platform, wherein the reflection sheet has a first reflective surface and a second reflective surface.

4. The display panel according to claim 3, wherein the reflection sheet is configured to reflect a first beam of light and a second beam of light, in which the first beam of light is a beam of light directed from outside the display panel to the first substrate and enters into the reflection sheet as well as the second beam of light is a beam of light directed from outside the display panel to the second substrate and enters into the light reflection sheet.

5. The display panel according to claim 4, wherein the display panel further comprises:

a first polarizer disposed on the first substrate; and

a second polarizer disposed on the second surface of the second substrate, the second polarizer including at least one hollow zone where the position of the hollow zone corresponds with the second region, the hollow zone being configure to reflect the second beam of light by transmitting the second beam of light through the light reflection sheet.

7. The display panel according to claim 3, wherein the pixel electrode layer includes a first electrode and a second electrode, the first electrode being disposed on the first region and the second electrode being disposed on the second region;

the first electrode being configured to apply directly a first electric field force to a first liquid crystal molecules which are located in the first region so that the first liquid crystal molecules deflect;

the second electrode being configured to apply a second electric field force to a second liquid crystal molecules which are located in the second region through the carrier platform and the reflection sheet so that the second liquid crystal molecules deflect.

8. The display panel according to claim 3, wherein the reflection sheet is a metal sheet and both surfaces of the reflection sheet are smooth surfaces, and the two surfaces are respectively the first reflective surface and the second reflective surface.

9. The display panel according to claim 3, wherein the reflection sheet is a double-sided lens including a first transparent dielectric layer, a first reflective coating layer, and a second transparent dielectric layer, the first reflective coating layer being disposed between the first transparent dielectric layer and the second transparent dielectric layer;

wherein the first transparent dielectric layer and the first reflective coating layer constitute a first lens and the first reflective surface associates with the first lens, and the second transparent dielectric layer and the first a reflective coating constitute the second lens and the second reflective surface associates with the second lens; and

the first transparent dielectric layer faces the liquid crystal layer and the second transparent dielectric layer faces the carrier platform.

10. The display panel according to claim 3, wherein the reflection sheet is a single-sided lens including a third transparent dielectric layer and the second reflective coating layer, the second reflective coating layer being disposed between the third transparent dielectric layer and the carrier platform;

wherein the third transparent dielectric layer and the second reflective coating layer constitute a third lens and the first reflective surface associates with the third lens as well as the carrier platform and the second reflective coating layer constitute a fourth lens and the second reflective surface associates with the fourth lens; and

the third transparent dielectric layer faces the liquid crystal layer.

11. The display panel according to claim 3, wherein the second reflective surface of the reflective sheet is an uneven mirror surface and the second reflective surface having an uneven shape is configured to allow more light from the second beam of light to enter into the liquid crystal layer through the second polarizer after the second beam of light is reflected from the reflection sheet.

12. An display device comprising:

a backlight module; and

a display panel which comprises;

a color film substrate, which includes a first substrate, a color film layer and a common electrode layer;

a liquid crystal layer; and

a TFT array substrate, which comprises;

a second substrate including at least a first region and at least a second region;

a pixel electrode layer disposed on the first surface of the second substrate;

a carrier layer including at least one carrier platform disposed on the pixel electrode layer, wherein a position of the carrier platform corresponds with the second region; and

a reflective layer including at least one reflection sheet disposed on the carrier platform, wherein the reflection sheet has a first reflective surface and a second reflective surface.

13. The display device according to, claim 12, wherein the reflection sheet is configured to reflect a first beam of light and a second beam of light, in which the first beam of light is a beam of light directed from outside the display panel to the first substrate and enters into the reflection sheet, and the second beam of light is a beam of light directed from outside the display panel to the second substrate and enters into the light reflection sheet.

14. The display device according to claim 13, wherein the display panel further comprises:

a first polarizer disposed on the first substrate; and

a second polarizer disposed on the second surface of the second substrate, the second polarizer including at least one hollow zone where the position of the hollow zone corresponds with the second region, the hollow zone being configure to reflect the second beam of light by transmitting the second beam of light through the light reflection sheet.

15. The display device according to claim 13, wherein the carrier layer is a transparent or translucent resin layer configured to carry the reflection sheet and transmit the second beam of light.

16. The display device according to claim 12, wherein the pixel electrode layer includes a first electrode and a second electrode, the first electrode is disposed on the first region and the second electrode is disposed on the second region;

the first electrode is configured to apply directly a first electric field force to a first liquid crystal molecules which are located in the first region so that the first liquid crystal molecules deflect;

the second electrode is configured to applying a second electric field force to a second liquid crystal molecules which are located in the second region through the carrier platform and the reflection sheet so that the second liquid crystal molecules deflect.

17. The display device according to claim 12, wherein the reflection sheet is a metal sheet and both surfaces of the reflection sheet are smooth surfaces, and the two surfaces are respectively the first reflective surface and the second reflective surface.

18. The display device according to claim 12, wherein the reflection sheet is a double-sided lens including a first transparent dielectric layer, a first reflective coating layer, and a second transparent dielectric layer, the first reflective coating layer being disposed between the first transparent dielectric layer and the second transparent dielectric layer;

wherein the first transparent dielectric layer and the first reflective coating layer constitute a first lens and the first reflective surface associates with the first lens, and the second transparent dielectric layer and the first a reflective coating constitute the second lens and the second reflective surface associates with the second lens; and

the first transparent dielectric layer faces the liquid crystal layer and the second transparent dielectric layer faces the carrier platform.

19. The display device according to claim 12, wherein the reflection sheet is a single-sided lens including a third transparent dielectric layer and the second reflective coating layer, the second reflective coating layer being disposed between the third transparent dielectric layer and the carrier platform;

wherein the third transparent dielectric layer and the second reflective coating layer constitute a third lens and the first reflective surface associates with the third lens as well as the carrier platform and the second reflective coating layer constitute a fourth lens and the second reflective surface associates with the fourth lens; and

the third transparent dielectric layer faces the liquid crystal layer.

20. The display device according to claim 12, wherein the second reflective surface of the reflective sheet is an uneven mirror surface and the second reflective surface having an uneven shape is configured to allow more light from the second beam of light to enter into the liquid crystal layer through the second polarizer after the second beam of light is reflected from the reflection sheet.