Multi-layer high transparency display for light field generation

• US 10,554,962 B2
• Filed: 07/13/2017
• Issued: 02/04/2020
• Est. Priority Date: 02/07/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Perdices-Gonzalez, Sergio, Sadi, Sajid, Post, Ernest Rehmatulla
• Primary Examiner(s): Wills-Burns, Chineyere D
• Application Number:
  US15/649,587
• Publication Number:
  US 20170310956A1
• Time in Patent Office: 936 Days
• Field of Search: 345 5
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2300/0456 with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/066 for control of contrast
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/002 to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/2092 Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3225 using an active matrix
• CPC Class Codes: G09G 3/3446 with more than two electrodes controlling the modulating element
• CPC Class Codes: G09G 3/348 based on the deformation of a fluid drop, e.g. electrowetting
• CPC Class Codes: G09G 3/36 : using liquid crystals
• CPC Class Codes: H04N 13/31 : using parallax barriers
• CPC Class Codes: H04N 13/324 : Colour aspects
• CPC Class Codes: H04N 13/363 : using image projection screens volumetric display H04N13/388
• CPC Class Codes: H04N 13/366 : using viewer tracking
• CPC Class Codes: H04N 13/388 : Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
• CPC Class Codes: H04N 13/398 : Synchronisation thereof; Control thereof

Abstract

A display device can include a first display configured to produce an image and a plurality of transparent displays. Each of the plurality of transparent displays can be configured to produce a slice of the image to provide depth and a three-dimensional effect to the image, or at least one of the plurality of transparent displays can be configured to block, diffuse, or scatter light associated with the image produced by the first display so that different ones of a plurality of users see different content derived from the image produced by the first display. Each of the transparent displays can be substantially transparent. Further, at least one of the plurality of transparent displays can be made using Smectic A liquid crystals.

Claims

1. A display device, comprising:

a first display configured to produce an image; and

a plurality of transparent displays in front of the first display;

wherein at least one of the plurality of transparent displays is configured to block, diffuse, or scatter light associated with the image produced by the first display so that different ones of a plurality of users in front of the plurality of transparent displays see different content derived from the image produced by the first display;

wherein each of the transparent displays is substantially transparent; and

a spacer configured to provide variable spacing between at least one of the first display and a selected transparent display of the plurality of transparent displays consecutive with the first display, or two consecutive transparent displays of the plurality of transparent displays, wherein the spacer is configured to adjust an amount of scattering, produced by the selected transparent display or one of the two consecutive transparent displays, of the image from the first display.

2. The display device of claim 1, wherein each display includes a plurality of electronically controllable pixels.

3. The display device of claim 2, further comprising:

a sensor configured to generate sensor information, wherein at least one pixel of the plurality of pixels of at least one of the displays is adjusted based, at least in part, upon the sensor information.

4. The display device of claim 3, wherein the sensor information specifies a distance of a user of the plurality of users to the display device and the at least one pixel of the plurality of pixels is adjusted based upon the distance.

5. The display device of claim 3, wherein the sensor information specifies a location of a selected user of the plurality of users relative to the display device and the at least one pixel of the plurality of pixels is adjusted based upon a viewing angle of the selected user determined using the location to adjust a parallax barrier implemented by at least one of the plurality of transparent displays.

6. The display device of claim 3, wherein:

the sensor information specifies a number of the plurality of users detected within a predetermined distance of the display device and selected pixels of the plurality of pixels are adjusted based, at least in part, upon the number of the plurality of users so that each user of the plurality of users sees different content;

or

the sensor information specifies an attribute of a selected user of the plurality of users and selected pixels of the plurality of pixels of at least one of the displays are adjusted, based at least in part, upon the attribute of the selected user.

7. The display device of claim 1, wherein at least one of the plurality of transparent displays is made using Smectic A liquid crystals.

8. The display device of claim 1,

wherein at least another one of the plurality of transparent displays is configured to produce a slice of the image to provide depth and a three-dimensional effect to the image.

9. The display device of claim 8, wherein the spacer is configured to modify a spatial resolution of the three-dimensional effect.

10. The display device of claim 1, wherein the spacer is configured to modify a viewing cone for the different ones of the plurality of users seeing the different content.

11. The display device of claim 1, wherein each of the plurality of transparent displays includes a plurality of partially emissive pixels, wherein each partially emissive pixel includes an addressable region and a clear region.

12. The display device of claim 2, wherein the first display is an emissive display and each transparent display of the plurality of transparent displays is a non-emissive display.

13. The display device of claim 12, wherein:

at least one pixel of the plurality of pixels of at least one of the non-emissive displays includes dye;

or

at least one of the plurality of pixels of at least one of the non-emissive displays does not include dye and appears substantially white;

or

at least one pixel of the plurality of pixels of at least one of the non-emissive displays includes dye in particles, liquid crystal droplets, or liquid crystals of the non-emissive display.

14. The display device of claim 12, wherein:

each non-emissive display is at least 90 percent transparent; and

the emissive display is a liquid-crystal display, a light-emitting diode display, a light enhanced layer, or an organic light-emitting diode display.

23. The method of claim 13, wherein the spacer is configured to modify a spatial resolution of the three-dimensional effect.

15. A method, comprising:

providing a first display configured to produce an image;

providing a plurality of transparent displays in front of the first display;

wherein at least another one of the plurality of transparent displays is configured to block, diffuse, or scatter light associated with the image produced by the first display so that different ones of a plurality of users in front of the plurality of transparent displays see different content derived from the image produced by the first display;

wherein each of the transparent displays is substantially transparent; and

providing a spacer configured to provide variable spacing between at least one of the first display and a selected transparent display of the plurality of transparent displays consecutive with the first display, or two consecutive transparent displays of the plurality of transparent displays, wherein the spacer is configured to adjust an amount of scattering, produced by the selected transparent display or one of the two consecutive transparent displays, of the image from the first display.

16. The method of claim 15, wherein each display includes a plurality of electronically controllable pixels.

17. The method of claim 16, further comprising:

providing a sensor configured to generate sensor information, wherein at least one pixel of the plurality of pixels of at least one of the displays is adjusted based, at least in part, upon the sensor information.

18. The method of claim 17, wherein the sensor information specifies a distance of a user of the plurality of users to a display device including the first display and the plurality of transparent displays, and the at least one pixel of the plurality of pixels is adjusted based upon the distance.

19. The method of claim 17, wherein the sensor information specifies a location of a selected user of the plurality of users relative to a display device including the first display and the plurality of transparent displays, and the at least one pixel of the plurality of pixels is adjusted based upon a viewing angle of the selected user determined using the location to adjust a parallax barrier implemented by at least one of the plurality of transparent displays.

20. The method of claim 17, wherein:

the sensor information specifies a number of the plurality of users detected within a predetermined distance of a display device including the first display and the plurality of transparent displays, and selected pixels of the plurality of pixels are adjusted based, at least in part, upon the number of the plurality of users so that each user of the plurality of users sees the different content;

or

the sensor information specifies an attribute of a selected user of the plurality of users and selected pixels of the plurality of pixels of at least one of the displays are adjusted based, at least in part, upon the attribute of the selected user.

21. The method of claim 15, wherein at least one of the plurality of transparent displays is made using Smectic A liquid crystals.

22. The method of claim 15,

wherein at least another one of the plurality of transparent displays is configured to produce a slice of the image to provide depth and a three-dimensional effect to the image.

24. The method of claim 15, wherein the spacer is configured to modify a viewing cone for the different ones of the plurality of users seeing the different content.

25. The method of claim 15, wherein each of the plurality of transparent displays includes a plurality of partially emissive pixels, wherein each partially emissive pixel includes an addressable region and a clear region.

26. The method of claim 16, wherein the first display is an emissive display and each transparent display of the plurality of transparent displays is a non-emissive display.

27. The method of claim 26, wherein:

each non-emissive display is at least 90 percent transparent; and

the emissive display is a liquid-crystal display, a light-emitting diode display, a light enhanced layer, or an organic light-emitting diode display.

28. The method of claim 26, wherein:

at least one pixel of the plurality of pixels of at least one of the non-emissive displays includes dye;

or

at least one of the plurality of pixels of at least one of the non-emissive displays does not include dye and appears substantially white;

or

at least one pixel of the plurality of pixels of at least one of the non-emissive displays includes dye in particles, liquid crystal droplets, or liquid crystals of the non-emissive display.

29. A method, comprising:

displaying an image using a first display;

blocking, diffusing, or scattering light associated with the image produced by the first display using at least one of a plurality of transparent displays in front of the first display so that different ones of a plurality of users in front of the plurality of transparent displays see different content derived from the image produced by the first display;

wherein each of the plurality of transparent displays is substantially transparent; and

providing, using a spacer, variable spacing between at least one of the first display and a selected transparent display of the plurality of transparent displays consecutive with the first display, or two consecutive transparent displays of the plurality of transparent displays, wherein the spacer is configured to adjust an amount of scattering, produced by the selected transparent display or one of the two consecutive transparent displays, of the image from the first display.

30. The method of claim 29, wherein each display includes a plurality of electronically controllable pixels, the method further comprising:

adjusting an appearance of at least one pixel of the plurality of electronically controllable pixels of at least one of the displays based, at least in part, upon sensor information.

31. The method of claim 30, wherein:

the sensor information specifies distance of a user of the plurality of users to a display device including the first display and the plurality of transparent displays, wherein the at least one pixel of the plurality of electronically controllable pixels of the at least one of the displays is adjusted based, at least in part, upon the distance;

or

the sensor information specifies a number of the plurality of users detected within a predetermined distance of a display device including the first display and the plurality of transparent displays, wherein selected pixels of the plurality of electronically controllable pixels of the at least one of the displays are adjusted based, at least in part, upon the number of the plurality of users so that each user of the plurality of users sees the different content, or

the sensor information specifies an attribute of a selected user of the plurality of users, wherein the selected pixels of the plurality of electronically controllable pixels of at least one of the displays based are adjusted based, at least in part, upon the attribute of the selected user.

32. The method of claim 29, wherein

at least one of the plurality of transparent displays is made using Smectic A liquid crystals.

33. The method of claim 29, wherein

the spacer is configured to modify a viewing cone for the different ones of the plurality of users seeing the different content.

34. The method of claim 29, wherein at least another one of the plurality of transparent displays is configured to produce a slice of the image to provide depth and a three-dimensional effect to the image.