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CN-115620350-B - Electronic device

CN115620350BCN 115620350 BCN115620350 BCN 115620350BCN-115620350-B

Abstract

The invention discloses an electronic device, which comprises a panel, a plurality of signal lines, a plurality of sub-pixels, a plurality of biological sensing units, a first switch unit and a second switch unit. The panel has a working area and a peripheral area. The plurality of signal lines are arranged on the panel and are provided with a first signal line and a second signal line. The plurality of sub-pixels are arranged in the working area and are provided with first sub-pixels and second sub-pixels. The plurality of biological sensing units are arranged in the working area and are provided with first biological sensing units. The first switch unit is arranged in the peripheral area and is electrically connected to the first sub-pixel through a first signal line. The second switch unit is arranged in the peripheral area and is electrically connected to the second sub-pixel through a second signal line. The first biological sensing unit is electrically connected to the first signal line, and a first time period when the first switch unit is turned on is longer than a second time period when the second switch unit is turned on.

Inventors

  • ZHANG GUISHENG
  • WU GUORONG
  • CHEN BAIYANG
  • YAO YIAN
  • JIAN CHUANZHI
  • LI SHUFEN
  • LIAO XIAOFENG

Assignees

  • 群创光电股份有限公司

Dates

Publication Date
20260505
Application Date
20210714

Claims (9)

  1. 1. An electronic device, comprising: a panel having a working area and a peripheral area; A plurality of signal lines arranged on the panel and having a first signal line and a second signal line; a plurality of sub-pixels arranged in the working area and provided with a first sub-pixel and a second sub-pixel; the biological sensing units are arranged in the working area and are provided with a first biological sensing unit; A first switch unit disposed in the peripheral region and electrically connected to the first sub-pixel via the first signal line, and A second switch unit disposed in the peripheral region and electrically connected to the second sub-pixel via the second signal line, The first biological sensing unit is electrically connected to the first signal line, and a first time period when the first switch unit is turned on is longer than a second time period when the second switch unit is turned on.
  2. 2. The electronic device of claim 1, wherein the first signal line is a signal read line of the first biosensing unit.
  3. 3. The electronic device of claim 1, wherein the first sub-pixel is a blue sub-pixel, a red sub-pixel, or a green sub-pixel.
  4. 4. The electronic device of 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 comprises a touch signal line, the first touch unit is electrically connected to the touch signal line, and the first biosensing unit is electrically connected to the touch signal line.
  5. 5. The electronic device of claim 4, wherein the touch signal line provides a fixed voltage when the electronic device is in a biosensing state, and provides a wavy voltage when the electronic device is in a touch state.
  6. 6. The electronic device of claim 1, further comprising an insulating layer overlapping the first biosensing unit, the insulating layer having a circular arc shape.
  7. 7. The electronic device of claim 6, further comprising a light shield disposed on the insulating layer and partially overlapping the first biosensing unit.
  8. 8. An electronic device, comprising: a panel having a working area and a peripheral area; a plurality of signal lines arranged on the panel and provided with a touch signal line; a plurality of touch units disposed in the working area and having a first touch unit, and A plurality of biological sensing units arranged in the working area and provided with a first biological sensing unit, The first touch control unit is electrically connected to the touch control signal line, and the first biological sensing unit is electrically connected to the touch control signal line; When the electronic device is in a biological sensing state, the touch control signal line provides a fixed voltage, and when the electronic device is in a touch control state, the touch control signal line provides a wavy voltage.
  9. 9. The electronic device of claim 8, further comprising an insulating layer overlapping the first biosensing unit, the insulating layer having a circular arc shape.

Description

Electronic device Technical Field The present invention relates to an electronic device, and more particularly, to an electronic device including a panel and a biosensing unit. Background In recent years, technologies for integrating a panel and a biosensing unit into an electronic product have been actively developed, for example, fingerprint recognition can be applied to a display such as a smart phone or a tablet computer. However, when the fingerprint recognition element is located in the display panel, the fingerprint recognition element and the conductive wires may affect the aperture ratio of the pixel, especially the high resolution display. Disclosure of Invention One of the objectives of the present invention is to provide an electronic device, in which part of the devices can share signal lines, so as to reduce the number of metal wires, the number of layers and/or the number of holes required for layer transfer, or reduce the ratio of the area of the non-transparent portion, so as to achieve the purpose of combining the fingerprint identification function and the high aperture ratio. An embodiment of the invention provides an electronic device, which includes a panel, a plurality of signal lines, a plurality of sub-pixels, a plurality of biosensing units, a first switch unit and a second switch unit. The panel has a working area and a peripheral area. The plurality of signal lines are arranged on the panel and are provided with a first signal line and a second signal line. The plurality of sub-pixels are arranged in the working area and are provided with first sub-pixels and second sub-pixels. The plurality of biological sensing units are arranged in the working area and are provided with first biological sensing units. The first switch unit is arranged in the peripheral area and is electrically connected to the first sub-pixel through a first signal line. The second switch unit is arranged in the peripheral area and is electrically connected to the second sub-pixel through a second signal line. The first biological sensing unit is electrically connected to the first signal line, and a first time period when the first switch unit is turned on is longer than a second time period when the second switch unit is turned on. An embodiment of the invention further provides an electronic device, which includes a panel, a plurality of signal lines, a plurality of touch units, and a plurality of biosensing units. The panel has a working area and a peripheral area. The plurality of signal lines are arranged on the panel and are provided with touch signal lines. The plurality of touch units are arranged in the working area and are provided with first touch units. The plurality of biological sensing units are arranged in the working area and are provided with first biological sensing units. The first touch control unit is electrically connected to the touch control signal line, and the first biological sensing unit is electrically connected to the touch control signal line. Drawings Fig. 1 is a schematic top view of an electronic device according to an embodiment of the invention. Fig. 2 is an enlarged partial top view of the area a of fig. 1. Fig. 3 is a schematic diagram of a partial amplifying circuit structure of the region B in fig. 1. Fig. 4 is a schematic signal cycle diagram of a switch unit according to an embodiment of the invention. Fig. 5 is a schematic top view and a partially enlarged schematic top view of an electronic device according to an embodiment of the invention. Fig. 6 is a schematic top view of a partial area of a signal line, a sub-pixel and a bio-sensing unit according to an embodiment of the invention. Fig. 7 is a schematic circuit diagram of the biological sensing unit shown in fig. 5. Fig. 8 is a schematic partial cross-sectional view of a signal line of an electronic device according to an embodiment of the invention. Fig. 9 is a schematic diagram of waveforms of signals of elements of an electronic device according to an embodiment of the invention. Fig. 10 is a schematic partial cross-sectional view of an electronic device according to an embodiment of the invention. Reference numerals illustrate 100-panels; 102-working area; 104-a peripheral region; 110-multiplexing-de-signal area, 120-fanout area, 130-display gate drive unit, 140-sensing gate drive unit, 150-junction area, 160-substrate, 170-buffer layer, 175-bottom light shielding layer, 200-signal line, 202-source line, 210-first signal line, 211-connection element, 220-second signal line, 230-third signal line, 240-touch signal line, 241-junction electrode, 250-voltage source signal line, 300-subpixel, 310-first subpixel, 320-second subpixel, 330-third subpixel, 400-biosensing unit, 410-first biosensing unit, 500-touch unit, 510-first touch unit, 520-contact hole, 600, 610, 620, 630, 640, 650, 660, 670, 680, 690-insulation layer, 700-light shielding cover, A, B, C-area, BL-second signal line, clock-gate signal cycle line,