Lighting display device having surface light source and display unit

Patent metadata

Field	Value
Publication number	US-9594297-B2
Application number	US-201414573203-A
Country	US
Kind code	B2
Filing date	Dec 17, 2014
Priority date	Jul 9, 2014
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A lighting display device is disclosed in embodiments of the present invention. The lighting display device includes a surface light source type display lamp having a backlight source, a first transparent substrate and a second transparent substrate laminated in sequence in a direction away from the backlight source, a liquid crystal layer disposed between the first transparent substrate and the second transparent substrate, a polarizer disposed on a side of the first transparent substrate facing the backlight source, and pixel units disposed on one of the first transparent substrate and the second transparent substrate, the pixel units being arranged in a matrix and being configured to control rotation of liquid crystal molecules in the liquid crystal layer, and a display unit spaced from the surface light source type display lamp by a set distance, wherein the display unit has a polarization and reflection structure which is configured to cooperate with the polarizer, and is configured to reflect light emitted by the surface light source type display lamp to display.

First claim

What is claimed is:

1. A lighting display device, comprising:
a surface light source type display lamp comprising: a backlight source, a first transparent substrate and a second transparent substrate laminated in sequence in a direction away from the backlight source, a liquid crystal layer disposed between the first transparent substrate and the second transparent substrate, a polarizer disposed on a side of the first transparent substrate facing the backlight source, and, pixel units disposed on one of the first transparent substrate and the second transparent substrate, the pixel units being arranged in a matrix and being configured to control rotation of liquid crystal molecules in the liquid crystal layer, and
a display unit spaced from the surface light source type display lamp by a set distance, wherein the display unit has a polarization and reflection structure which is configured to cooperate with the polarizer and is configured to reflect light emitted by the surface light source type display lamp to display.

2. The lighting display device of claim 1 , wherein:
the polarizer comprises a polarizing sheet.

3. The lighting display device of claim 1 , wherein:
the display unit comprises a reflective polarizing optical film.

4. The lighting display device of claim 1 , wherein:
the display unit comprises a reflective display part, and an analyzer disposed on a side of the reflective display part facing the surface light source type display lamp.

5. The lighting display device of claim 4 , wherein:
the analyzer comprises a polarizing sheet.

6. The lighting display device of claim 5 , wherein:
the reflective display part comprises a reflector layer or reflector surface.

7. The lighting display device of claim 5 , wherein:
the reflective display part comprises a brightness enhancement film.

8. The lighting display device of claim 7 , wherein:
the analyzer and the brightness enhancement film are integrated into one body.

9. The lighting display device of claim 1 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

10. The lighting display device of claim 9 , further comprising:
a base to which both the surface light source type display lamp and the lamp cover are fixed.

11. The lighting display device of claim 9 , wherein:
a polarization direction of the polarizer of the surface light source type display lamp and a polarization direction of the polarization and reflection structure of the display unit are substantially perpendicular to each other.

12. The lighting display device of claim 1 , wherein:
the surface light source type display lamp is disposed separately from the display unit.

13. The lighting display device of claim 2 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

14. The lighting display device of claim 13 , further comprising:
a base to which both the surface light source type display lamp and the lamp cover are fixed.

15. The lighting display device of claim 3 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

16. The lighting display device of claim 4 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

17. The lighting display device of claim 5 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

18. The lighting display device of claim 6 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

19. The lighting display device of claim 7 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

20. The lighting display device of claim 8 , further comprising:
a lamp cover fitted over the surface light source type display lamp.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Wenbo
• Wu Yanbing
• Dong Yefei

Classifications

• G03B21/006

  using LCD's · CPC title

• G03B21/2073 Primary

  Polarisers in the lamp house (peculiar to electronic spatial light modulators H04N9/3197) · CPC title

• G03B21/604

  Polarised screens · CPC title