Double-vision display system

• US 9,645,405 B2
• Filed: 05/17/2011
• Issued: 05/09/2017
• Est. Priority Date: 05/18/2010
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Wu, Yanbing
• Primary Examiner(s): Werner, David N
• Application Number:
  US13/109,252
• Publication Number:
  US 20110285834A1
• Time in Patent Office: 2,184 Days
• Field of Search: 348 58
• CPC Class Codes: G02B 27/28 for polarising used in stereoscopes G02B30/25
• CPC Class Codes: G02B 27/286 for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another G02B5/3083 takes precedence; light guide coupling means utilising polarising elements G02B6/34
• CPC Class Codes: G02B 27/288 Filters employing polarising elements, e.g. Lyot or Solc filters G02B5/3016 takes precedence
• CPC Class Codes: G02B 30/25 using polarisation techniques
• CPC Class Codes: G02F 1/1343 Electrodes reflective electrodes G02F1/133553
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134372 for fringe field switching [FFS] where the common electrode is not patterned
• CPC Class Codes: H04N 13/337 using polarisation multiplexing
• CPC Class Codes: H04N 2013/403 the images being monoscopic

Abstract

A double-vision display system comprises: a display displaying by periodically switching in at least two images or displaying region-alternately and simultaneously the at least two images in an array area according to inputted video streaming; a polarization modulation device disposed in front of the display and modulating emitted light of the at least two images into kinds of polarized light having different polarization directions; and at least two pairs of polarization spectacles, polarization direction of each pair of polarization spectacles being the same as the polarization direction of one kind of the polarized light.

Claims

1. A double-vision display system, comprising:

a display displaying by displaying region-alternately and simultaneously the at least two images in an array area according to inputted video streaming;

a polarization modulation device disposed in front of the display and modulating emitted light of the at least two images into kinds of polarized light having different polarization directions; and

at least two pairs of polarization spectacles, polarization direction of each pair of polarization spectacles being the same as the polarization direction of one kind of the polarized light,

wherein

the polarization modulation device includes;

a polarizer,

a first transparent substrate, and

a second transparent substrate,

wherein the polarizer is disposed between the display and the first transparent substrate and modulates emitted light of the display into polarized emitted light,

the second transparent substrate is disposed at a side opposite to the polarizer of the first transparent substrate,

two transparent conductive films are respectively formed on opposite surfaces of the first transparent substrate and the second transparent substrate,

two alignment films are further respectively arranged on opposite surfaces of the two transparent conductive films, and

a liquid crystal layer is filled between the two alignment films and liquid crystal in the liquid crystal layer is periodically twisted in synchronism with periodically switching in the at least two images of the display under driving of a switching signal supplied to the transparent conductive films;

from the first transparent substrate side, the polarization modulation device comprising the first transparent substrate, the transparent conductive film, the alignment film, the liquid crystal layer, the alignment film, the transparent conductive film and the second transparent substrate in this order,

wherein the two transparent conductive films respectively formed on the opposite surfaces of the first transparent substrate and the second transparent substrate are plane-shaped,

wherein the two transparent conductive films continuously cover the opposite surfaces of the first transparent substrate and the second transparent substrate, respectively,

wherein the display displays region-alternately and simultaneously the at least two images in a matrix form of a block shape,

wherein in each row of display regions of the display, the at least two images are displayed region-alternately and simultaneously, and in each column of the display regions of the display, the at least two images are displayed region-alternately and simultaneously,

wherein the display is a liquid crystal display, the liquid crystal display includes an array substrate and a color filter substrate bonded together, the polarizer of the polarization modulation device is directly used as an upper polarizer on the color filter substrate, the liquid crystal display and the polarization modulation device share the polarizer.

2. The double-vision display system as claimed in claim 1, wherein the display displays two images, and the polarized light having different polarization directions comprises first polarized emitted light and second polarized emitted light corresponding to the two images, respectively.

3. The double-vision display system as claimed in claim 2, wherein the first polarized emitted light and the second polarized emitted light are two kinds of linearly polarized lights having the polarization directions perpendicular to each other, respectively, or the first polarized emitted light and the second polarized emitted light are a left-hand elliptically polarized light and a right-hand elliptically polarized light having opposite polarization directions, respectively.

4. The double-vision display system as claimed in claim 1, further comprising:

a video streaming hybrid encoding device, connected with the display and hybrid encoding all kinds of video streaming provided to the display such that the display displays by periodically switching in the at least two images or displays region-alternately and simultaneously the at least two images in the array region based on hybrid encoded video streaming.

5. The double-vision display system as claimed in claim 1, wherein the display comprises a liquid crystal display, a plasma display panel or an organic light emitting diode display.