Display panel and display apparatus

• US 10,642,061 B2
• Filed: 07/06/2017
• Issued: 05/05/2020
• Est. Priority Date: 10/31/2016
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Wang, Wei, Yang, Yafeng, Chen, Xiaochuan, Zhang, Can
• Primary Examiner(s): Cheng, Joe H
• Application Number:
  US15/751,558
• Publication Number:
  US 20190196209A1
• Time in Patent Office: 1,034 Days
• CPC Class Codes: G02B 2027/0134 of stereoscopic type
• CPC Class Codes: G02B 2027/0185 Displaying image at variable distance
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/34 Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
• CPC Class Codes: G02B 30/36 using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
• CPC Class Codes: H04N 13/133 Equalising the characteristics of different image components, e.g. their average brightness or colour balance
• CPC Class Codes: H04N 13/307 using fly-eye lenses, e.g. arrangements of circular lenses
• CPC Class Codes: H04N 13/312 the parallax barriers being placed behind the display panel, e.g. between backlight and spatial light modulator [SLM]
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/344 with head-mounted left-right displays

Abstract

The present disclosure discloses a display panel and a display apparatus. The display panel comprises a first display region and a driving circuit. The first display region comprises at least two sets of display units, each set of display units comprising at least one display unit. All the display units of the first display region are configured to generate light rays that are to be converged onto a same eye of a user. All the display units that belong to a same set of display units are configured to generate light rays that are to be converged onto a same viewpoint of a same eye of the user, and the display unit that belong to different sets of display units are configured to generate light rays that are to be converged respectively onto different viewpoints of a same eye of the user. The driving circuit drives the display units of the at least two sets of display units, so that the at least two sets of display units display pictures representing a same scene to be displayed and viewed at the respective viewpoints.

Claims

1. A display apparatus, which is to be used for near-eye displaying and comprises:

a display panel comprising a first display region, wherein the first display region comprises at least two sets of display units, each set of display units comprising at least one display unit;

all the display units of the first display region are configured to generate light rays that are to be converged onto a same eye of a user, all the display units that belong to a same set of display units are configured to generate light rays that are to be converged onto a same viewpoint of a same eye of the user, and the display units that belong to different sets of display units are configured to generate light rays that are to be converged respectively onto different viewpoints of a same eye of the user; and

a driving circuit, configured to drive the display units of the at least two sets of display units, so that the at least two sets of display units display pictures representing a same scene to be displayed and viewed at the respective viewpoints,

wherein the display panel further comprises a light outputting control layer configured to control colours and directions of the light rays generated by the display units, or to control directions of the light rays generated by the display units,

wherein the display panel comprises four sets of display units, and the four sets display units are so arranged and the light outputting control layer is so configured that a connecting line between two viewpoints among the four viewpoints to which the four sets of display units correspond intersects perpendicularly a connecting line between the other two viewpoints, and the four viewpoints are evenly distributed around an intersection point of the two connecting lines.

2. The display apparatus of claim 1, wherein the at least two sets of display units are so arranged and the light outputting control layer is so configured that, among viewpoints to which the at least two sets of display units correspond, distances between any two adjacent viewpoints are less than 2.5 mm.

3. The display apparatus of claim 2, wherein the driving circuit is configured to produce a driving signal which is to be input into the display units of the at least two sets of display units, so as to drive the display units.

4. The display apparatus of claim 2, wherein the driving circuit is configured to produce picture information according to a scene to be displayed, the picture information comprising information representing colour and brightness of pixels of a picture to be displayed, and information representing display distances of the pixels;

wherein the driving circuit is further configured to produce a driving signal on the basis of the picture information, so as to drive the display units of the at least two sets of display units.

5. The display apparatus of claim 4, wherein the driving circuit is further configured:

to divide the picture to be displayed into several sets of pixels on the basis of the display distances according to the picture information produced;

to determine distances between any two display units belonging to two or more sets of display units employed to display each set of pixels in the two or more sets of display units, according to the display distances of each set of pixels;

to determine the picture to be displayed by the display units of a set of display units, according to the determined distances between any two display units; and

to write a driving signal to which the picture to be displayed corresponds into the display units.

6. The display apparatus of claim 2, wherein the display units of each set of display units are evenly distributed in the first display region.

7. The display apparatus of claim 2, wherein the display panel further comprises a second display region, the light rays generated by the display units of the first display region and of the second display region are emitted respectively into the two eyes of the user, and the first display region and the second display region display respectively binocular parallax pictures representing a same scene to be displayed.

8. The display apparatus of claim 7, wherein the display panel comprises two separate display subpanels, on which the first display region and the second display region are respectively situated;

or, the first display region and the second display region are two display regions of the display panel.

9. The display apparatus of claim 1, wherein the driving circuit is configured to produce a driving signal which is to be input into the display units of the at least two sets of display units, so as to drive the display units.

10. The display apparatus of claim 1, wherein the driving circuit is configured to produce picture information according to a scene to be displayed, the picture information comprising information representing colour and brightness of pixels of a picture to be displayed, and information representing display distances of the pixels;

wherein the driving circuit is further configured to produce a driving signal on the basis of the picture information, so as to drive the display units of the at least two sets of display units.

11. The display apparatus of claim 10, wherein the driving circuit is further configured:

to divide the picture to be displayed into several sets of pixels on the basis of the display distances according to the picture information produced;

to determine distances between any two display units belonging to two or more sets of display units employed to display each set of pixels in the two or more sets of display units, according to the display distances of each set of pixels;

to determine the picture to be displayed by the display units of a set of display units, according to the determined distances between any two display units; and

to write a driving signal to which the picture to be displayed corresponds into the display units.

12. The display apparatus of claim 1, wherein the at least two sets of display units are so arranged and the light outputting control layer is so configured that the viewpoints to which the sets of display units correspond are arranged in an axisymmetric distribution manner, a central radial distribution manner or a helical radial distribution manner.

13. The display apparatus of claim 1, wherein the display units of each set of display units are evenly distributed in the first display region.

14. The display apparatus of claim 1, wherein the display unit comprises two or more pixels, which generate light rays with a same direction.

15. The display apparatus of claim 1, wherein the display panel further comprises a second display region, the light rays generated by the display units of the first display region and of the second display region are emitted respectively into the two eyes of the user, and the first display region and the second display region display respectively binocular parallax pictures representing a same scene to be displayed.

16. The display apparatus of claim 15, wherein the display panel comprises two separate display subpanels, on which the first display region and the second display region are respectively situated;

or, the first display region and the second display region are two display regions of the display panel.

17. A near-eye display device comprising a display apparatus according to claim 1.