Three-dimensional display apparatus and three-dimensional display method

• US 10,419,743 B2
• Filed: 01/29/2015
• Issued: 09/17/2019
• Est. Priority Date: 12/11/2014
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectric Technology Co. Ltd. (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Wang, Huan, Shin, Mookeun
• Primary Examiner(s): Nguyen, Chanh D
• Assistant Examiner(s): Kiyabu, Karin
• Application Number:
  US14/608,846
• Publication Number:
  US 20160173860A1
• Time in Patent Office: 1,692 Days
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/30 involving parallax barriers
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/315 the parallax barriers being time-variant
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/383 for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes

Abstract

Embodiments of the present invention provide a three-dimensional display apparatus and a three-dimensional display method, the three-dimensional display apparatus comprising: a display device, including a plurality of pixels arranged in an array and being capable of emitting light of first and second spectrum groups; a parallax barrier, including a plurality of first and second narrow band filters arranged alternately, wherein the plurality of first narrow band filters are pervious to the light of the first spectrum group but block the light of the second spectrum group, and the plurality of second narrow band filters are pervious to the light of the second spectrum group but block the light of the first spectrum group, the first and second spectrum groups not overlapping each other. Thus, the three-dimensional display apparatus and method can increase the number of viewing points and enhance freedom degree of stereoscopic viewing.

Claims

1. A three-dimensional display apparatus, comprising:

a display device, including a plurality of pixels arranged in an array and being capable of emitting light of a first spectrum group and light of a second spectrum group;

a parallax barrier, including a plurality of first narrow band filters and a plurality of second narrow band filters arranged alternately, wherein an interval is provided between each first narrow band filter of the plurality of first narrow band filters and each second narrow band filter of the plurality of second narrow band filters adjacent to each other, and a black matrix is disposed in each of the intervals between each adjacent first and second narrow band filters,

wherein the plurality of first narrow band filters are pervious to the light of the first spectrum group but block the light of the second spectrum group, and the plurality of second narrow band filters are pervious to the light of the second spectrum group but block the light of the first spectrum group, the first spectrum group and the second spectrum group not overlapping each other,

wherein in one time period, the three-dimensional display apparatus only emits the light of the first spectrum group or the light of the second spectrum group,

wherein the light of the first spectrum group is configured to be utilized to simultaneously display a left eye image and a right eye image which constitute a three-dimensional image, the light of the second spectrum group is configured to be utilized to simultaneously display another left eye image and another right eye image which constitute another three-dimensional image,

wherein a viewing point region toward which the light of the first spectrum group emits after exiting from the three-dimensional display apparatus is different from a viewing point region toward which the light of the second spectrum group emits after exiting from the three-dimensional display apparatus, so that viewers positioned in different viewing point regions will see different three-dimensional images which are made respectively by the light of the first spectrum group and the light of the second spectrum group; and

a backlight unit, including a first light source and a second light source, the first light source being configured to emit the light of the first spectrum group, and the second light source being configured to emit the light of the second spectrum group, the first light source and the second light source are different from each other, the different three-dimensional images which are seen by different viewers which are positioned in different viewing point regions are respectively formed by light emitted from the first light source and the second light source different from each other, a three-dimensional image seen by a viewer in one viewing point region is formed only by light emitted from one of the first light source and the second light source, and a three-dimensional image seen by a viewer in another viewing point region is formed only by another of the first light source and the second light source.

2. The three-dimensional display apparatus according to claim 1, wherein the display device further comprises:

a display panel, including the plurality of pixels and receiving light emitted by the backlight unit to display an image.

3. The three-dimensional display apparatus according to claim 2, wherein the first light source includes a plurality of first solid-state lasers emitting light of different spectra, the second light source includes a plurality of second solid-state lasers emitting light of different spectra, and the plurality of first solid-state lasers and the plurality of second solid-state lasers are juxtaposed.

4. The three-dimensional display apparatus according to claim 2, wherein the first light source includes a plurality of first light emitting diodes emitting light of different spectra, and the second light source includes a plurality of second light emitting diodes emitting light of different spectra, the plurality of first light emitting diodes and the plurality of second light emitting diodes are juxtaposed.

5. The three-dimensional display apparatus according to claim 1, wherein the display device is an organic light emitting display device, and the plurality of pixels include a plurality of first pixels and a plurality of second pixels, wherein the plurality of first pixels emit the light of the first spectrum group, and the plurality of second pixels emit the light of the second spectrum group.

6. The three-dimensional display apparatus according to claim 1, wherein each of the plurality of first narrow band filters and the plurality of second narrow band filters is a dichroic filter.

7. The three-dimensional display apparatus according to claim 1, wherein each of the plurality of first narrow band filters and the plurality of second narrow band filters includes:

a color selecting retarder stack, including N>

=2 retardation films;

an input polarizer, disposed on a light entering side of the color selecting retarder stack; and

an output polarizer, disposed on a light exiting side of the color selecting retarder stack.

8. The three-dimensional display apparatus according to claim 1, further comprising:

a controller, configured to control the display device to emit the light of the first spectrum group or the light of the second spectrum group.

9. The three-dimensional display apparatus according to claim 8, wherein the controller is configured to control the display device to emit the light of the first spectrum group or the light of the second spectrum group according to a control signal input by an operator.

10. The three-dimensional display apparatus according to claim 1, further comprising:

a head tracer, configured to detect a position of a viewer'"'"'s head.

11. The three-dimensional display apparatus according to claim 10, wherein the head tracer comprises:

an imaging unit, configured to capture an image of the viewer'"'"'s head; and

a determining unit, configured to determine a position of the viewer'"'"'s head according to the image captured by the imaging unit.

12. The three-dimensional display apparatus according to claim 10, wherein the head tracer further includes:

a signal generating part, configured to output a control signal according to the position of the viewer'"'"'s head detected by the head tracer, to control the display device to emit the light of the first spectrum group or the light of the second spectrum group.

13. The three-dimensional display apparatus according to claim 10, further comprising:

a control module, configured to receive the position of the viewer'"'"'s head detected by the head tracer and output a control signal, to control the display device to emit the light of the first spectrum group or the light of the second spectrum group.

14. The three-dimensional display apparatus according to claim 1, wherein the display device emits the light of the first spectrum group in a first time period of a display period of each frame of image, and emits the light of the second spectrum group in a second time period of the display period of each frame of image.

15. A three-dimensional display method for use in the three-dimensional display apparatus according to claim 1, the three-dimensional display method comprising:

receiving left-eye image data and right-eye image data for displaying one frame of image; and

controlling the display device to emit light of the first spectrum group or light of the second spectrum group to display a left-eye image and a right-eye image according to a design requirement.

16. The three-dimensional display method according to claim 15, wherein the controlling the display device to emit light of the first spectrum group or light of the second spectrum group to display the left-eye image and the right-eye image according to the design requirement, comprises:

controlling the display device to emit the light of the first spectrum group in a first time period of a display period of each frame of image, and

controlling the display device to emit the light of the second spectrum group in a second time period of the display period of each frame of image.

17. The three-dimensional display method according to claim 15, wherein the controlling the display device to emit light of the first spectrum group or light of the second spectrum group to display the left-eye image and the right-eye image according to the design requirement, comprises:

adopting a controller to output a control signal, to control the display device to emit the light of the first spectrum group to display the left-eye image and the right-eye image or to emit the light of the second spectrum group to display the left-eye image and the right-eye image.

18. The three-dimensional display method according to claim 17, wherein the adopting the controller to output the control signal, to control the display device to emit the light of the first spectrum group or to emit the light of the second spectrum group, comprises:

detecting a position of a viewer'"'"'s head; and

when the viewer'"'"'s head is in a first position, outputting the control signal by the controller to control the display device to emit the light of the first spectrum group, and when the viewer'"'"'s head is in a second position, outputting the control signal by the controller to emit the light of the second spectrum group.

19. The three-dimensional display method according to claim 17, wherein the adopting the controller to output the control signal, to control the display device to emit the light of the first spectrum group or to emit the light of the second spectrum group, comprises:

outputting the control signal by the controller according to an input of an operator to control the display device to emit the light of the first spectrum group or to emit the light of the second spectrum group.