ELECTRONIC APPARATUS

• US 20190325814A1
• Filed: 03/21/2019
• Published: 10/24/2019
• Est. Priority Date: 04/19/2018
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: CHANG, Chi-Liang, HSU, Yi-Hua
• Granted Patent: US 11,164,509 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2300/0421 Structural details of the set of electrodes
• CPC Class Codes: G09G 2310/0221 with use of split matrices G09G3/3644 and G09G3/3666 take precedence
• CPC Class Codes: G09G 2310/0232 Special driving of display border areas
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2320/0242 Compensation of deficiencies in the appearance of colours
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 3/006 Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: G09G 3/36 using liquid crystals

Abstract

An electronic apparatus includes a first display panel and a second display panel. The first display panel includes first light-emitting elements, a first edge, and a first left region. The second display panel includes second light-emitting elements, a second edge adjacent to the first edge, and a first right region. The difference between the average brightness of the first light-emitting elements located in the first left region of the first display panel and the average brightness of the second light-emitting elements located in the first right region of the second display panel is from 0% to 20%.

Claims

1. An electronic apparatus, comprising:

a first display panel comprising a plurality of first light-emitting elements, a first edge, and a first left region;

a second display panel comprising a plurality of second light-emitting elements, a second edge, and a first right region, wherein the second edge is adjacent to the first edge;

wherein a difference between an average brightness of the first light-emitting elements in the first left region and an average brightness of the second light-emitting elements in the first right region is in a range from 0% to 20%.

2. The electronic apparatus as claimed in claim 1, wherein the first left region is a region between the first edge and a first boundary parallel to the first edge, and a distance between the first boundary and the first edge is equal to one-half a width or a length of the first display panel.

3. The electronic apparatus as claimed in claim 1, wherein a difference between an X-axis chromaticity coordinate of the first light-emitting elements in the first left region and an X-axis chromaticity coordinate of the second light-emitting elements in the first right region is in a range from 0 to 0.01, or a difference between a Y-axis chromaticity coordinate of the first light-emitting elements in the first left region and a Y-axis chromaticity coordinate of the second light-emitting elements in the first right region is in a range from 0 to 0.01.

4. The electronic apparatus as claimed in claim 1, wherein the area of the first left region may be substantially equal to the area of the first right region.

5. The electronic apparatus as claimed in claim 1, wherein the first display panel further comprises a second left region, and the second display panel further comprises a second right region,

wherein an area of the second left region is less than an area of the first left region, and an area of the second right region is less than an area of the first right region,

wherein a difference between an average brightness of the first light-emitting elements in the second left region and an average brightness of the second light-emitting elements in the second right region is in a range from 0% to 14%.

6. The electronic apparatus as claimed in claim 5, wherein a difference between an X-axis chromaticity coordinate of the first light-emitting elements in the second left region and an X-axis chromaticity coordinate of the second light-emitting elements in the second right region is in a range from 0 to 0.008, and a difference between a Y-axis chromaticity coordinate of the first light-emitting elements in the second left region and a Y-axis chromaticity coordinate of the second light-emitting elements in the second right region is in a range from 0 to 0.008.

7. The electronic apparatus as claimed in claim 5, wherein the second left region is a region between the first edge and a second boundary parallel to the first edge, and a distance between the second boundary and the first edge is equal to one-third a width or a length of the first display panel.

8. The electronic apparatus as claimed in claim 5, wherein the area of the second left region is less than or equal to two-thirds of the area of the first left region, and the area of the second right region is less than or equal to two-thirds of the area of the first right region.

9. The electronic apparatus as claimed in claim 5, wherein the area of the second left region may be substantially equal to the area of the second right region.

10. The electronic apparatus as claimed in claim 5, wherein the first display panel further comprises a third left region, and the second display panel further comprises a third right region,

wherein an area of the third left region is less than an area of the second left region, and an area of the third right region is less than an area of the second right region,

wherein the difference between an average brightness of the first light-emitting elements in the third left region and an average brightness of the second light-emitting elements in the third right region is in a range from 0% to 10%.

11. The electronic apparatus as claimed in claim 10, wherein a difference between an X-axis chromaticity coordinate of the first light-emitting elements in the third left region and an X-axis chromaticity coordinate of the second light-emitting elements in the third right region is in a range from 0 to 0.006, and a difference between a Y-axis chromaticity coordinate of the first light-emitting elements in the third left region and a Y-axis chromaticity coordinate of the second light-emitting elements in the third right region is in a range from 0 to 0.006.

12. The electronic apparatus as claimed in claim 10, wherein the third left region is a region between the first edge and a third boundary parallel to the first edge, and a distance between the third boundary and the first edge is equal to one-quarter a width or a length of the first display panel.

13. The electronic apparatus as claimed in claim 10, wherein the area of the third left region is less than or equal to three-quarters of the area of the second left region, and the area of the third right region is less than or equal to three-quarters of the area of the second right region.

14. The electronic apparatus as claimed in claim 10, wherein the area of the third left region may be substantially equal to the area of the third right region.

15. The electronic apparatus as claimed in claim 1, wherein a low-reflection material is disposed between the first edge and the second edge, and a reflectivity of the low-reflection material is in a range from 0% to 10%.

16. The electronic apparatus as claimed in claim 1, wherein a low-reflection material is disposed between the first edge and the second edge, and a difference between a reflectivity of the low-reflection material and a reflectivity of a surface of the first display panel is in a range from 0% to 10%.

17. The electronic apparatus as claimed in claim 1, wherein the plurality of first light-emitting elements comprise one of the first light-emitting elements adjacent to the first edge, the plurality of second light-emitting elements comprise one of the plurality of second light-emitting elements adjacent to the second edge, and a pitch between two adjacent first light-emitting elements of the plurality of first light-emitting elements is defined as a first pitch, a pitch between the one of the first light-emitting elements and the one of the second light-emitting elements is defined as a second pitch, and a ratio of the second pitch to the first pitch is in a range from 0.7 to 1.3.

18. The electronic apparatus as claimed in claim 1, wherein the first display panel further comprises a first shading material disposed between the plurality of first light-emitting elements, and the second display panel further comprises a second shading material disposed between the plurality of second light-emitting elements.

19. The electronic apparatus as claimed in claim 1, further comprising:

a first electrical connector disposed on a rear surface of the first display panel;

a second electrical connector disposed on a rear surface of the second display panel;

a connection cable connected to the first electrical connector and the second electrical connector.

20. The electronic apparatus as claimed in claim 1, further comprising a housing, wherein the first display panel and the second display panel are arranged on the housing, and the first edge is adjacent to or in contact with the second edge.