Electronic device

Patent metadata

Field	Value
Publication number	US-12483646-B2
Application number	US-202217840536-A
Country	US
Kind code	B2
Filing date	Jun 14, 2022
Priority date	Jul 14, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

An electronic device includes a panel having a working area and a peripheral area, signal lines, sub-pixels, bio-sensor units, a first switch unit and a second switch unit. The signal lines are disposed on the panel and have a first signal line and a second signal line. The sub-pixels and the bio-sensor units are disposed in the working area. The sub-pixels have a first sub-pixel and a second sub-pixel. The bio-sensor units have a first bio-sensor unit which is electrically connected to the first signal line. The first switch unit and the second switch unit are disposed in the peripheral area and respectively electrically connected to the first sub-pixel and the second sub-pixel through the first signal line and the second signal line. A first time period that the first switch unit is turned on is longer than a second time period that the second switch unit is turned on.

First claim

What is claimed is:

1 . An electronic device, comprising:
a panel having a working area and a peripheral area; a plurality of signal lines disposed on the panel and having a first signal line and a second signal line; a plurality of sub-pixels disposed in the working area and having a first sub-pixel and a second sub-pixel; a plurality of bio-sensor units disposed in the working area and having a first bio-sensor unit; a first switch unit disposed in the peripheral area and electrically connected to the first sub-pixel through the first signal line; and a second switch unit disposed in the peripheral area and electrically connected to the second sub-pixel through the second signal line, wherein the first bio-sensor unit is electrically connected to the first signal line, and a first time period that the first switch unit is turned on is longer than a second time period that the second switch unit is turned on.

2 . The electronic device according to claim 1 , wherein the first signal line is a signal readout line of the first bio-sensor unit.

3 . The electronic device according to claim 2 , wherein the first signal line is a data line of the first sub-pixel, and the second signal line is a data line of the second sub-pixel.

4 . The electronic device according to claim 1 , wherein the first sub-pixel is a blue sub-pixel, a red sub-pixel or a green sub-pixel.

5 . The electronic device according to claim 4 , wherein the first sub-pixel is one of a blue sub-pixel, a red sub-pixel and a green sub-pixel, and the second sub-pixel is another one of the blue sub-pixel, the red sub-pixel and the green sub-pixel.

6 . The electronic device according to claim 1 , further comprising a plurality of touch units disposed in the working area and having a first touch unit, wherein the plurality of signal lines further comprise a touch signal line, the first touch unit is electrically connected to the touch signal line, and the first bio-sensor unit is electrically connected to the touch signal line.

7 . The electronic device according to claim 6 , wherein the touch signal line provides a constant voltage when the electronic device is in a bio-sensing state, and the touch signal line provides a waveform voltage when the electronic device is in a touch state.

8 . The electronic device according to claim 6 , wherein the touch signal line is at least partially overlapped with the first signal line in a top-view direction of the electronic device.

9 . The electronic device according to claim 1 , further comprising an insulating layer overlapped with the first bio-sensor unit, wherein the insulating layer has an arc-shaped profile.

10 . The electronic device according to claim 9 , wherein the insulating layer is disposed around the first bio-sensor unit and surrounds the first bio-sensor unit.

11 . The electronic device according to claim 9 , further comprising a light shielding cover disposed on the insulating layer and partially overlapped with the first bio-sensor unit.

12 . The electronic device according to claim 11 , further comprising a backlight unit, wherein the panel is disposed on the backlight unit.

13 . The electronic device according to claim 12 , further comprising a connection electrode electrically connected to the first bio-sensor unit and disposed between the first bio-sensor unit and the backlight unit, wherein the light shielding cover and the connection electrode have the same potential.

14 . An electronic device, comprising:
a panel having a working area and a peripheral area; a plurality of signal lines disposed on the panel and having a touch signal line; a plurality of touch units disposed in the working area and having a first touch unit; and a plurality of bio-sensor units disposed in the working area and having a first bio-sensor unit, wherein the first touch unit is electrically connected to the touch signal line, and the first bio-sensor unit is electrically connected to the touch signal line.

15 . The electronic device according to claim 14 , wherein the touch signal line provides a constant voltage when the electronic device is in a bio-sensing state, and the touch signal line provides a waveform voltage when the electronic device is in a touch state.

16 . The electronic device according to claim 14 , further comprising an insulating layer overlapped with the first bio-sensor unit, wherein the insulating layer has an arc-shaped profile.

17 . The electronic device according to claim 16 , wherein the insulating layer is disposed around the first bio-sensor unit and surrounds the first bio-sensor unit.

18 . The electronic device according to claim 16 , further comprising a light shielding cover disposed on the insulating layer and partially overlapped with the first bio-sensor unit.

19 . The electronic device according to claim 18 , further comprising a backlight unit, wherein the panel is disposed on the backlight unit.

20 . The electronic device according to claim 19 , further comprising a connection electrode electrically connected to the first bio-sensor unit and disposed between the first bio-sensor unit and the backlight unit, wherein the light shielding cover and the connection electrode have the same potential.

Assignees

• Innolux Corp

Inventors

• CHANG Kuei-Sheng
• Wu Kuo-Jung
• Chen Po-Yang
• Yao I-An
• Chien Chuan-Chi
• Li Shu-Fen
• Liao Hsiao-Feng

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06V40/1318 Primary

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• H04M2250/22

  including a touch pad, a touch sensor or a touch detector · CPC title

• H04M1/026

  Details of the structure or mounting of specific components · CPC title

• H04M1/22 Primary

  Illumination; Arrangements for improving the visibility of characters on dials · CPC title