Display device

Patent metadata

Field	Value
Publication number	US-12300124-B2
Application number	US-202217925033-A
Country	US
Kind code	B2
Filing date	Nov 9, 2022
Priority date	Oct 19, 2022
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

The present disclosure provides a display device. The display device includes a rotating light bar and a driving unit. The driving unit is connected to a center point of the rotating light bar, and the rotating light bar is configured to rotate with the center point of the rotating light bar as an axis. The rotating light bar includes light emitting device groups arranged along a width direction of the rotating light bar, each of the light emitting device groups includes light emitting devices arranged along a length direction of the rotating light bar, and the light emitting devices in two adjacent ones of the light emitting device groups are staggered in the length direction of the rotating light bar.

First claim

What is claimed is:

1. A display device, comprising:
a light bar; and
a driving unit connected to the light bar,
wherein the light bar comprises a plurality of light emitting device groups arranged along a width direction of the light bar, each of the light emitting device groups comprises a plurality of light emitting devices arranged along a length direction of the light bar, and the plurality of light emitting devices in any two adjacent ones of the light emitting device groups are staggered in the length direction of the light bar;
the light bar comprises a first axis line parallel to the length direction of the light bar, and the plurality of light emitting device groups comprise a first light emitting device group disposed on the first axis line, a second light emitting device group disposed on a side of the first light emitting device group, and a third light emitting device group disposed on a side of the first light emitting device group away from the second light emitting device group; and
in the width direction of the light bar, a distance between the first light emitting device group and the second light emitting device group is equal to a distance between the first light emitting device group and the third light emitting device group.

2. The display device according to claim 1 , wherein the light bar further comprises a second axis line intersecting the first axis line vertically, and an intersection point of the first axis line and the second axis line is defined as a center origin; and
wherein on a side of the second axis line, a distance between an nth one of the light emitting devices arranged from the center origin along the length direction of the light bar and the center origin is n*a, n is zero or a positive integer, and a is a distance between one of the light emitting devices closest to the center origin and the center origin.

3. The display device according to claim 2 , wherein a length of each of the light emitting devices in the length direction of the light bar is less than the distance between the one of the light emitting devices closest to the center origin and the center origin.

4. The display device according to claim 1 , wherein the display device further comprises at least two light bars located on a same plane, the at least two light bars are crossed with center points coincident, and the driving unit is connected to the at least two light bars.

5. The display device according to claim 1 , wherein the display device further comprises at least two light bars located on at least two parallel planes respectively, the at least two light bars on the at least two parallel planes are connected to the driving unit; and
wherein in a top view direction of the display device, at least two light bars arranged on two adjacent parallel planes respectively are crossed.

6. The display device according to claim 5 , wherein in a normal direction of the at least two parallel planes, a depth of an imaging space of the display device satisfies: D 2 =(N−1)*D 1 , wherein D 1 is a distance between the two adjacent parallel planes, D 2 is the depth of the imaging space of the display device, and N is a quantity of parallel planes.

7. The display device according to claim 6 , wherein a quantity of light bars satisfies: 1≤x<πL 2 /4LW, x is the quantity of the light bars, L is a length of each of the light bars, and W is a width of each of the light bars.

8. The display device according to claim 1 , wherein the driving unit comprises a rotating telescopic shaft and a driving member, and the rotating telescopic shaft is configured to rotate by driving of the driving member; and
wherein a center point of the light bar is vertically connected to the rotating telescopic shaft, and the rotating telescopic shaft is retractable in a direction perpendicular to the light bar.

9. The display device according to claim 8 , wherein in an extension direction of the rotating telescopic shaft, a depth of an imaging space of the display device is less than or equal to a telescopic value of the rotating telescopic shaft.

10. The display device according to claim 9 , wherein the display device further comprises at least two light bars located on at least two parallel planes respectively, and center points of the at least two light bars on the at least two parallel planes are arranged in a same straight line and are rotationally connected to the driving unit; and
wherein in the extension direction of the rotating telescopic shaft, the depth of the imaging space of the display device satisfies: (N−1)*D 1 ≤D 2 ≤(N−1)*D 1 +D 3 , N is a quantity of parallel planes, D 1 is a distance between two adjacent parallel planes, D 2 is the depth of the imaging space of the display device, and D 3 is the telescopic value of the rotating telescopic shaft.

11. A display device, comprising:
a light bar; and
a driving unit connected to the light bar,
wherein the light bar comprises a plurality of light emitting device groups arranged along a width direction of the light bar, each of the light emitting device groups comprises a plurality of light emitting devices arranged along a length direction of the light bar, the plurality of light emitting devices in any two adjacent ones of the light emitting device groups are staggered in the length direction of the light bar, and the plurality of light emitting devices of the light bar are centrosymmetric with respect to a center point of the light bar.

12. The display device according to claim 11 , wherein the display device further comprises at least two light bars located on at least two parallel planes respectively, and the at least two light bars on the at least two parallel planes are connected to the driving unit; and
wherein in a top view direction of the display device, at least two light bars arrange on two adjacent parallel planes respectively are crossed.

13. The display device according to claim 12 , wherein in a normal direction of the at least two parallel planes, a depth of an imaging space of the display device satisfies: D 2 =(N−1)*D 1 , wherein D 1 is a distance between the two adjacent parallel planes, D 2 is the depth of the imaging space of the display device, and N is a quantity of the parallel planes.

14. The display device according to claim 13 , wherein a quantity of light bars satisfies: 1≤x<πL 2 /4LW, x is the quantity of the light bars, L is a length of each of the light bars, and W is a width of each of the light bars.

15. The display device according to claim 14 , wherein the driving unit comprises a rotating telescopic shaft and a driving member, and the rotating telescopic shaft is configured to rotate by driving of the driving member; and
wherein the center point of the light bar is vertically connected to the rotating telescopic shaft, and the rotating telescopic shaft is retractable in a direction perpendicular to the light bar.

16. The display device according to claim 15 , wherein in an extension direction of the rotating telescopic shaft, the depth of the imaging space of the display device is less than or equal to a telescopic value of the rotating telescopic shaft.

17. The display device according to claim 16 , wherein the display device further comprises at least two light bars located on at least two parallel planes respectively, and center points of the at least two light bars on the at least two parallel planes are arranged in a same straight line and are rotationally connected to the driving unit; and
wherein in the extension direction of the rotating telescopic shaft, the depth of the imaging space of the

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Chen Yunni
• Liu Fancheng
• Zha Guowei
• Li Zhifu

Classifications

• G09F13/30 Primary

  with moving light sources, e.g. rotating luminous tubes · CPC title

• G09F19/12 Primary

  using special optical effects · CPC title

• G09F9/37

  being movable elements (G09F9/302 takes precedence) · CPC title

• G09G3/00

  Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes · CPC title

• G02B30/52

  the three-dimensional [3D] volume being constructed from a stack or sequence of two-dimensional [2D] planes, e.g. depth sampling systems · CPC title