DISPLAY APPARATUS

• US 20180284496A1
• Filed: 08/16/2017
• Published: 10/04/2018
• Est. Priority Date: 03/30/2017
• Status: Abandoned Application

• Current Assignee: Chongqing HKC Optoelectronics Technology Co., Ltd. (Shenzhen Huike Investment Holding Co., Ltd.), HKC Corporation Limited (Shenzhen Huike Investment Holding Co., Ltd.)
• Original Assignee: Chongqing HKC Optoelectronics Technology Co., Ltd. (Shenzhen Huike Investment Holding Co., Ltd.), HKC Corporation Limited (Shenzhen Huike Investment Holding Co., Ltd.)
• Inventors: CHEN, Yu-Jen
• Application Number:
  US15/561,698
• Publication Number:
  US 20180284496A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/1334 based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
• CPC Class Codes: G02F 1/13476 in which at least one liquid crystal cell or layer assumes a scattering state
• CPC Class Codes: G02F 1/137 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
• CPC Class Codes: G02F 1/13756 the liquid crystal selectively assuming a light-scattering state G02F1/1334, G02F1/13718 take precedence
• CPC Class Codes: G02F 2201/44 Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
• CPC Class Codes: H01J 17/00 Gas-filled discharge tubes with solid cathode H01J25/00, H01J27/00, H01J31/00 - H01J41/00 , H01J11/00 take precedence; gas filled spark gaps H01T; Marx converters H02M7/26
• CPC Class Codes: H01J 29/00 Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
• CPC Class Codes: H01L 27/156 two-dimensional arrays
• CPC Class Codes: H10K 59/50 OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

Abstract

This application provides a display apparatus, including a display panel, including a plurality of image pixels arranged in arrays; and a liquid crystal dimmer panel, disposed on the display panel, where the liquid crystal dimmer panel has a transparent state and a scattering state, and in the transparent state, the liquid crystal dimmer panel allows an image of the image pixel to be directly viewed from the front side, and in the scattering state, the liquid crystal dimmer panel allows a light emitted by the image pixel to be refracted for adjustment.

Claims

1. A display apparatus, comprising:

a display panel, comprising a plurality of image pixels arranged in arrays; and

a liquid crystal dimmer panel, disposed on the display panel, wherein the liquid crystal dimmer panel has a transparent state and a scattering state, and in the transparent state, the liquid crystal dimmer panel allows an image of the image pixel to be directly viewed from the front side, and in the scattering state, the liquid crystal dimmer panel allows a light emitted by the image pixel to be refracted for adjustment.

2. The display apparatus according to claim 1, wherein a plurality of dimming pixels is disposed on the liquid crystal dimmer panel.

3. The display apparatus according to claim 2, wherein a drive voltage is a drive voltage of each of the dimming pixels on the liquid crystal dimmer panel.

4. The display apparatus according to claim 2, wherein each of the dimming pixels is disposed in a one-to-one correspondence with each image pixel group on the display panel.

5. The display apparatus according to claim 2, wherein each of the dimming pixels is disposed in a one-to-one correspondence with each image pixel in an image pixel group.

6. The display apparatus according to claim 1, wherein a transparent conductive film is disposed on both opposite surfaces of the liquid crystal dimmer panel.

7. The display apparatus according to claim 6, wherein drive voltages of the liquid crystal dimmer panel at locations relative to different image pixel groups are controlled by means of wiring of the transparent conductive film, to control liquid crystal molecules in the liquid crystal dimmer panel to perform viewing angle light energy adjustment.

8. The display apparatus according to claim 1, wherein the display panel is a liquid crystal display (LCD) panel.

9. The display apparatus according to claim 8, wherein a backlight module provides a backlight for the LCD panel.

10. The display apparatus according to claim 9, wherein the backlight is a collimated light illuminating the LCD panel.

11. The display apparatus according to claim 2, further comprising a signal modem, configured to modulate/demodulate a picture signal received by the display apparatus, and a controller electrically connected to the signal modem.

12. The display apparatus according to claim 11, wherein the controller controls a drive voltage of the image pixel of the display panel and a drive voltage of the dimming pixel of the liquid crystal dimmer panel according to the signal modulated/demodulated by the signal modem.

13. The display apparatus according to claim 11, further comprising a human eye tracking apparatus electrically connected to the controller and configured to track and determine a location of an eye of a viewer relative to the display apparatus.

14. The display apparatus according to claim 13, wherein the human eye tracking apparatus is a charge coupled device (CCD) location detection apparatus.

15. The display apparatus according to claim 1, wherein the display panel is an organic light-emitting diode (OLED) display panel.

16. The display apparatus according to claim 1, wherein the display panel is a light-emitting diode (LED) display panel.

17. The display apparatus according to claim 1, wherein the display panel is a plasma display panel (PDP).

18. The display apparatus according to claim 1, wherein the display panel is a field emission display panel.

19. The display apparatus according to claim 1, wherein the display panel is a carbon nanotube display panel, or an e-ink display panel.

20. A display apparatus, comprising:

a display panel, comprising a plurality of image pixels arranged in arrays; and

a liquid crystal dimmer panel, disposed on the display panel, wherein the liquid crystal dimmer panel has a transparent state and a scattering state, and in the transparent state, the liquid crystal dimmer panel allows an image of the image pixel to be directly viewed from the front side, and in the scattering state, the liquid crystal dimmer panel allows a light emitted by the image pixel to be refracted for adjustment, wherein

a plurality of dimming pixels is disposed on the liquid crystal dimmer panel, and a drive voltage is a drive voltage of each of the dimming pixels on the liquid crystal dimmer panel, wherein

a transparent conductive film is disposed on both opposite surfaces of the liquid crystal dimmer panel, and drive voltage of the liquid crystal dimmer panel at locations relative to different image pixel groups are controlled by means of wiring of the transparent conductive film, to control liquid crystal molecules in the liquid crystal dimmer panel to perform viewing angle light energy adjustment.