Method of eliminating black border of display device, display device and detecting device

Patent metadata

Field	Value
Publication number	US-10930224-B2
Application number	US-201816468509-A
Country	US
Kind code	B2
Filing date	Nov 28, 2018
Priority date	Apr 28, 2018
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

The present disclosure provides a method of eliminating a black border of a display device, a display device and a detecting device. The display device includes a cover plate and a display panel, which are configured in a stack; the cover plate includes a light transmissive region and a non-light transmissive region located around the light transmissive region. The display panel includes a display area corresponding to the light transmissive region. The display area includes a first sub-display area and a second sub-display area around the first sub-display area. A size of the display area is greater than a size of the light transmissive region of the cover plate and pixels of the second sub-display area on at least one side are configured to display the same color as the color of the non-light transmissive area.

First claim

What is claimed is:

1. A method of eliminating a black border of a display device, the display device comprising a cover plate and a display panel that are provided in a stack, the cover plate comprising a light transmissive region and a non-light transmissive region located around the light transmissive region and the display panel comprising a display area such that an orthographic projection of the light transmissive region on the display panel falls within the display area, the method comprising the steps of:
configuring the display area to include a first sub-display area and a second sub-display area located around the first sub-display area; and
setting pixels, on at least one side, of the second sub-display area to display a same color as that of the non-light transmissive area,
wherein, before setting the pixels, on the at least one side, of the second sub-display area to display the same color as that of the non-light transmissive area, the method further comprises the following steps:
detecting a pixel location at which an orthographic projection of a boundary of the light transmissive region in the second sub-display area is located,
wherein the detecting the pixel location at which an orthographic projection of the boundary of the light transmissive region in the second sub-display area is located comprises:
detecting a first pixel location where an orthographic projection of a first boundary of the light transmissive region in the second sub-display area is located and a second pixel location where an orthographic projection of a second boundary of the light transmissive region in the second sub-display area is located, the second boundary being opposite to the first boundary, and a direction from the first boundary to the second boundary being a first direction,
wherein the detecting a first pixel location where an orthographic projection of a first boundary of the light transmissive region in the second sub-display area is located and a second pixel location where an orthographic projection of a second boundary of the light transmissive region in the second sub-display area is located comprises:
displaying a scanning test line column by column in the first direction from a side of the display area at the first boundary; during the displaying scanning test line, recording a position corresponding to a time when the scanning test line starts to appear in the light transmissive area as the first pixel location and recording a position corresponding to a time when the scanning test line disappears in the light transmissive area as the second pixel location.

2. The method as claimed in claim 1 , wherein the setting pixels, on at least one side, of the second sub-display area to display a same color as that of the non-light transmissive area comprises:
determining, according to the first pixel location, the second pixel location, and a resolution of the first sub-display area in the first direction, a number of columns of pixels to be processed of the second sub-display area on the first pixel location side and/or of the second pixel location side; and
setting the pixels to be processed of the second sub-display area in the light transmissive region on the first pixel location side and/or on the second pixel location side to display the same color as the color of the non-light transmissive area.

3. The method as claimed in claim 2 wherein the light transmissive region is located at an intermediate position of the display area;
the determining, according to the first pixel location, the second pixel location, and a resolution of the first sub-display area in the first direction, a number of columns of pixels to be processed of the second sub-display area on the first pixel location side and/or the second pixel location side comprises:
calculating, according to the first pixel location and the second pixel location, a number of columns of first pixels to be processed of the second sub-display area, shielded by the non-light transmissive area, on the first pixel location side and/or the second pixel location side, and a number of columns of pixels arranged in the first direction and covered by the light transmissive region;
calculating, according to the number of the columns of the pixels arranged in the first direction and covered by the light transmissive region and the resolution of the first sub-display area in the first direction, a number of columns of second pixels to be processed of the second sub-display area covered by the light transmissive region; and
calculating, according to the number of the columns of the first pixels to be processed of the second sub-display area on the first pixel location side and the number of the columns of the second pixels to be processed, the number of the columns of the pixels to be processed of the second sub-display area on the first pixel location side and/or, according to the number of the columns of the first pixels to be processed of the second sub-display area on the side of the second pixel and the number of the columns of the second pixels to be processed, the number of the columns of the pixels to be processed of the second sub-display area on the second pixel location side.

4. The method as claimed in claim 3 , wherein the number of the columns of the second pixels to be processed is calculated according to the following formula: C=(m−h)/2;
wherein C is the number of the columns of the second pixels to be processed, m is the number of the columns of the pixels covered by the light transmissive region in the first direction, and h is the resolution of the first sub-display area in the first direction.

5. The method as claimed in claim 3 , wherein the number of the columns of the pixels to be processed of the second sub-display area on the first pixel location i side calculated according to the following formula: P1=L1+C; wherein, P1 is the number of the columns of the pixels to be processed of the second sub-display area on the first pixel location side, L1 is the number of the columns of the first pixels to be processed of the second sub-display area on the first pixel location side, and C is the number of the columns of the second pixels to be processed; and/or,
the number of the columns of the pixels to be processed of the second sub-display area on the second pixel location i side calculated according to the following formula: P2=L2+C; wherein P2 is the number of the columns of the pixels to be processed of the second sub-display area on the second pixel location side, L2 is the number of the columns of the first pixels to be processed of the second sub-display area on the second pixel location side, and C is the number of the columns of the second pixels to be processed.

6. The method as claimed in claim 1 , wherein the detecting a pixel location at which an orthographic projection of a boundary of the light transmissive region in the second sub-display area is located further comprises:
detecting a third pixel location at which an orthographic projection of a third boundary of the light transmissive region in the second sub-display area is located and a fourth pixel location at which an orthographic projection of a fourth boundary of the light transmissive region in the second sub-display area is located, the fourth boundary being opposite to the third boundary, a direction from the third boundary to the fourth boundary being a second direction, which is perpendicular to the first direction;
the setting pixels, on at least one side, of the second sub-display area to display a same color as that of the non-light transmissive area further comprises: determining, according to the third pixel location, the fourth pixel location, and a resolution of the first sub-display area in the second direction, a number of columns of pixels to

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wang Boning
• Lv Hongliang
• Yang Ruifeng
• Fan Litao
• Liu Yufei
• Cui Libao
• Yang Huaxu
• Ai Qingnan
• Zhang Fang

Classifications

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G2330/12

  Test circuits or failure detection circuits included in a display system, as permanent part thereof · CPC title

• G09G2320/02

  Improving the quality of display appearance · CPC title

• G09G3/36 Primary

  using liquid crystals · CPC title

• G09G2310/0232

  Special driving of display border areas · CPC title