DISPLAY DEVICE AND DISPLAY WALL HAVING ALIGNMENT UNIT, METHOD FOR ASSEMBLING SAME

• US 20150077682A1
• Filed: 12/19/2013
• Published: 03/19/2015
• Est. Priority Date: 09/17/2013
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: HUNG, YI
• Application Number:
  US14/134,067
• Publication Number:
  US 20150077682A1
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133322 Mechanical guidance or alignment of LCD panel support components
• CPC Class Codes: G02F 1/13336 Combining plural substrates to produce large-area displays, e.g. tiled displays
• CPC Class Codes: Y10T 29/49769 Using optical instrument [excludes mere human eyeballing]

Abstract

A display device includes a housing, a display panel mounted in the housing, and at least one aligning unit. The housing includes at least one pair of opposite sidewalls, each sidewall defines at least one light hole corresponding to the light hole defined in the opposite sidewall. Each aligning unit includes an optical fiber and two collimating lenses, one collimating lens is arranged between and aligned with one end of the optical fiber and one light hole, the other collimating lens is arranged between and aligned with the other end of the optical fiber and one other light hole corresponding to the one light hole.

Claims

1. A display device comprising:

a housing comprising at least one pair of opposite sidewalls, each sidewall defining at least one light hole corresponding to the light hole defined in the opposite sidewall;

a display panel mounted in the housing; and

at least one aligning unit, each aligning unit comprising an optical fiber and two collimating lenses, one collimating lens being arranged between and aligned with one end of the optical fiber and one light hole, the other collimating lens being arranged between and aligned with the other end of the optical fiber and one other light hole corresponding to the one light hole.

2. The display device of claim 1, wherein the at least one pair of opposite sidewalls comprises two pair of opposite sidewalls, one of the two pair of opposite sidewalls are connected to the other one of the two pair of opposite sidewalls.

3. The display device of claim 2, wherein in each sidewall, the at least one light hole comprises two light holes adjacent to two ends of the sidewall.

4. The display device of claim 1, wherein in each pair of opposite sidewalls, a size of one sidewall is identical to a size of the other sidewall.

9. A method for manufacturing a display wall, comprising:

providing a plurality of display devices as claimed in claim 1;

assembling two of the plurality of display devices together;

aligning at least one light source with at least one of the light hole defined in the sidewall of one of the two display device opposite to the other one of the two display device, and aligning at least one photo sensor with at least one of the light hole defined in the sidewall of the other one of the two display device opposite to the one of the two display device;

adjusting location of the other one of the two display device relative to the one of the two display device until a light intensity detected by the at least one photo sensor becomes a biggest value; and

repeating the step of assembling two of the plurality of display devices together to the step of adjusting location of the other one of the two display device relative to the one of the two display device until all the plurality of display devices are assembled together.

10. The method of claim 9, wherein in each display device, the at least one pair of opposite sidewalls comprises two pair of opposite sidewalls, one of the two pair of opposite sidewalls are connected to the other one of the two pair of opposite sidewalls;

and wherein in each side wall, the at least one light hole comprises two light holes adjacent to two ends of the sidewall.

11. The method of claim 10, wherein the at least one light source comprises two light sources aligned with two light holes defined in the sidewall of one of the two display device opposite to the other one of the two display device, and the at least one photo sensor comprises two photo sensors aligned with two light hole defined in the sidewall of the other one of the two display device opposite to the one of the two display device.

12. The method of claim 11, wherein adjusting location of the other one of the two display device relative to the one of the two display device until a light intensity detected by the at least one photo sensor becomes a biggest value comprises:

fixing the one of the two display devices, adjusting a location of the other one of the two display devices along a direction parallel to the two adjacent sidewalls of the two display devices until a light intensity detected by one of the two photo sensors becomes a biggest value; and

fixing the one of the two display devices and one end of the other one of the two display devices adjacent to the one of the two photo sensors, and adjusting a location of an other end of the other one of the two display devices until a light intensity detected by the other one of the two photo sensors becomes a biggest value.

13. The method of claim 9, wherein the at least one light source is a laser source.

5. A display wall comprising:

a plurality of display devices arranged in an array, each display device comprising;

a housing comprising at least one pair of opposite sidewalls, each sidewall defining at least one light hole corresponding to the light hole defined in the opposite sidewall;

a display panel mounted in the housing; and

at least one aligning unit, each aligning unit comprising an optical fiber and two collimating lenses, one collimating lens being arranged between and aligned with one end of the optical fiber and one light hole, the other collimating lens being arranged between and aligned with the other end of the optical fiber and one other light hole corresponding to the one light hole;

wherein

the light holes in adjacent sidewalls of two adjacent the display devices are aligned with each other.

6. The display wall of claim 5, wherein in each display device, the at least one pair of opposite sidewalls comprises two pair of opposite sidewalls, one of the two pair of opposite sidewalls are connected to the other one of the two pair of opposite sidewalls.

7. The display wall of claim 6, wherein in each side wall, the at least one light hole comprises two light holes adjacent to two ends of the sidewall.

8. The display wall of claim 5, wherein in each pair of opposite sidewalls, a size of one sidewall is identical to a size of the other sidewall.