Display system comprising an image sensor

Patent metadata

Field	Value
Publication number	US-2019051709-A1
Application number	US-201816058776-A
Country	US
Kind code	A1
Filing date	Aug 8, 2018
Priority date	Aug 11, 2017
Publication date	Feb 14, 2019
Grant date	—

Abstract

A display system including a display screen having first and second display sub-pixels where each first display sub-pixel includes a first light-emitting component emitting a first radiation and covered with a first colored filter and first conductive tracks and where each second display sub-pixel includes a second light-emitting component emitting a second radiation and covered with a second colored filter and second conductive tracks. The display system further includes an image sensor detecting the first or second radiation or a third radiation. The first display sub-pixels include first elements absorbing the first radiation and the second radiation and covering the first conductive tracks. The first absorbing elements and/or the first colored filter delimit a first passageway along the stacking direction for the first, second, or third radiation.

First claim

What is claimed is:

1 . A display and detection system comprising a display screen comprising a stack of layers along a stacking direction and comprising first and second display sub-pixels, each first display sub-pixel comprising a first light-emitting component capable of emitting a first radiation and covered with a first colored filter and first electrically-conductive tracks, each second display sub-pixel comprising a second light-emitting component capable of emitting a second radiation and covered with a second colored filter and second electrically-conductive tracks, the first colored filter being capable of letting through the first radiation and of blocking the second radiation, the second colored filter being capable of letting through the second radiation and of blocking the first radiation, the display and detection system further comprising an image sensor covered with the display screen and capable of detecting the first radiation, the second radiation, or a third radiation,
wherein: the first electrically-conductive tracks are made of
a material absorbing the first radiation and the second radiation; or
the first electrically-conductive tracks are transparent for the first radiation and the second radiation; or
at least the first display sub-pixels comprise first elements absorbing the first radiation and the second radiation and covering the first electrically-conductive tracks, and
wherein, for each first display sub-pixel, the first absorbing elements, the first colored filter, and/or the first electrically-conductive tracks delimit at least one first passageway along the stacking direction for the first radiation, the second radiation, or the third radiation.

2 . The display and detection system of claim 1 , wherein, for each first display sub-pixel, the entire surface of the first display sub-pixel is covered with the first absorbing elements and the first colored filter.

3 . The display and detection system of claim 1 , comprising at least one dielectric layer interposed between the first absorbing elements and the first electrically-conductive tracks.

4 . The display and detection system of claim 1 , wherein the first absorbing elements are in contact with the first electrically-conductive tracks.

5 . The display and detection system of claim 1 , wherein the image sensor is capable of detecting the second radiation and wherein the first absorbing elements comprise third colored filters capable of letting through the second radiation and of blocking the first radiation.

6 . The display and detection system of claim 1 , wherein the image sensor is capable of detecting the third radiation and wherein the first absorbing elements comprise fourth colored filters capable of letting through the third radiation and of blocking the first and second radiations.

7 . The display and detection system of claim 6 , wherein the first elements absorb the third radiation.

8 . The display and detection system of claim 1 , wherein the second display sub-pixels comprise second elements absorbing the first radiation and the second radiation and covering the second electrically-conductive tracks.

9 . The display and detection system of claim 8 , wherein the second absorbing elements and/or the second colored filter delimit at least one second passageway for the second radiation.

10 . The display and detection system of claim 9 , wherein the second passageway is covered with a fifth colored filter capable of letting through the second radiation.

11 . The display and detection system of claim 1 , further comprising an angular filter capable of blocking incident rays having an incidence relative to a direction orthogonal to a surface of the angular filter greater than a threshold and of letting through at least certain incident rays having an incidence relative to a direction orthogonal to the surface smaller than the threshold.

12 . The display and detection system of claim 11 , wherein the first absorbing elements form the angular filter.

Assignees

• Isorg

Inventors

• Puszka Agathe
• Chable Quentin
• Bouthinon Benjamin

Classifications

• G06F3/0421

  by interrupting or reflecting a light beam, e.g. optical touch-screen · CPC title

• H01L27/3234 Primary

  Electricity · mapped topic

• G06K9/0004

  Physics · mapped topic

• H01L27/322

  Electricity · mapped topic

• H01L27/323

  Electricity · mapped topic