CN-121999694-A - Electronic device and detection method thereof

CN121999694ACN 121999694 ACN121999694 ACN 121999694ACN-121999694-A

Abstract

The invention provides an electronic device and a detection method thereof. The electronic device comprises a panel and a circuit board. The panel comprises a substrate, a first signal transmission line, a control line, a plurality of first common voltage lines, a plurality of first switch assemblies and a driving chip. The substrate includes an active region and a peripheral region adjacent to the active region. The first signal transmission line and the control line are arranged in the peripheral area. The first common voltage line is disposed in the active region. The first switch assembly is coupled between a first common voltage line and a first signal transmission line. In the display stage, the circuit board provides a first voltage to the first switch component through the control line, so that the first common voltage line is coupled with the first signal transmission line. In the sensing stage, the driving chip provides a sensing signal to the first common voltage line, and the circuit board provides a second voltage to the first switch component through the control line, so that the first common voltage line is not coupled with the first signal transmission line.

Inventors

PENG JIEZHONG
GAO WEISHENG
Ou Yidan

Assignees

群创光电股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241104

Claims (10)

1. An electronic device having a display phase and a sensing phase, the electronic device comprising: a panel, comprising: a substrate including an active region and a peripheral region adjacent to the active region; A first signal transmission line arranged in the peripheral region; A control line arranged in the peripheral region; A plurality of first common voltage lines disposed in the active region; A plurality of first switch components coupled between the first common voltage lines and the first signal transmission line, and A driving chip coupled to the first common voltage lines, and A circuit board coupled to the control line, Wherein, in the display stage, the circuit board provides a first voltage to the plurality of first switch components through the control line, so that the plurality of first common voltage lines are coupled with the first signal transmission line, In the sensing stage, the driving chip provides a sensing signal to the plurality of first common voltage lines, and the circuit board provides a second voltage to the plurality of first switch components through the control line, so that the plurality of first common voltage lines are not coupled with the first signal transmission line.
2. The electronic device of claim 1, wherein the panel further comprises a second signal transfer line disposed in the peripheral region and coupled to the circuit board, and a plurality of second common voltage lines disposed in the active region.
3. The electronic device of claim 2, wherein, in a top view, one of the plurality of second common voltage lines is located between adjacent two of the plurality of first common voltage lines.
4. The electronic device of claim 2, wherein the plurality of second common voltage lines are coupled to the second signal transfer line during the display phase and are not coupled to the second signal transfer line during the sensing phase.
5. The electronic device of claim 2, wherein the panel further comprises a plurality of connection pads disposed on the substrate, the plurality of first common voltage lines and the plurality of second common voltage lines being coupled to the driving chip through the plurality of connection pads.
6. The electronic device of claim 5, wherein the plurality of connection pads, the first signal transmission line, the second signal transmission line, and the control line are adjacent to a first side of the active region in a top view.
7. The electronic device of claim 6, wherein the first signal transmission line, the second signal transmission line and the control line have a portion overlapping the driving chip, respectively.
8. The electronic device of claim 2, wherein the panel further comprises a first common electrode and a second common electrode disposed in the active region, the first common electrode being adjacent to the second common electrode, the first common electrode being coupled to one of the plurality of first common voltage lines through a plurality of first vias, and the second common electrode being coupled to one of the plurality of second common voltage lines through a plurality of second vias.
9. A method for detecting an electronic device, comprising: providing a panel, wherein the panel comprises a first common voltage line, a second common voltage line, a control line, a first switch assembly, a second switch assembly, a first signal transmission line and a second signal transmission line; providing a first voltage to the first switch assembly and the second switch assembly through the control line, so that the first common voltage line is coupled to the first signal transmission line, and the second common voltage line is coupled to the second signal transmission line; Providing a first test voltage to the first signal transmission line and a second test voltage to the second signal transmission line, so that the panel displays a test pattern; Judging whether the test pattern accords with a default pattern or not; generating a test normal message when the test pattern is determined to match the default pattern, and When the test pattern is judged to be not consistent with the default pattern, a detection error message is generated.
10. The method of claim 9, wherein the panel further comprises a first common electrode and a second common electrode, the first common electrode is adjacent to the second common electrode, the first common electrode is coupled to the first common voltage line through a plurality of first vias, and the second common electrode is coupled to the second common voltage line through a plurality of second vias.

Description

Electronic device and detection method thereof Technical Field The present invention relates to an electronic device, and more particularly, to an electronic device and a detection method thereof. Background In known sensing display devices there is a configuration of partitioned common electrodes. The partitioned common electrode may take the role of receiving and providing a common voltage during the display phase. In the sensing phase, the partitioned common electrode may be a sensing electrode for sensing capacitance difference. However, the partitioned common electrodes in the sensing display device cannot be shorted with each other, otherwise the sensing function of the sensing display device may be affected. Therefore, a new design is needed which can ameliorate the aforementioned problems. Disclosure of Invention The embodiment of the invention provides an electronic device, which is provided with a display stage and a sensing stage. The electronic device comprises a panel and a circuit board. The panel comprises a substrate, a first signal transmission line, a control line, a plurality of first common voltage lines, a plurality of first switch assemblies and a driving chip. The substrate includes an active region and a peripheral region adjacent to the active region. The first signal transmission line is arranged in the peripheral area. The control line is arranged in the peripheral area. The first common voltage line is disposed in the active region. The first switch assembly is coupled between a first common voltage line and a first signal transmission line. The driving chip is coupled with a first common voltage line. The circuit board is coupled with the control line. In the display stage, the circuit board provides a first voltage to the first switch component through the control line, so that the first common voltage line is coupled with the first signal transmission line. In the sensing stage, the driving chip provides a sensing signal to the first common voltage line, and the circuit board provides a second voltage to the first switch component through the control line, so that the first common voltage line is not coupled with the first signal transmission line. The embodiment of the invention provides a detection method of an electronic device, which comprises the following steps. A panel is provided, wherein the panel includes a first common voltage line, a second common voltage line, a control line, a first switch assembly, a second switch assembly, a first signal transfer line, and a second signal transfer line. The first voltage is provided to the first switch assembly and the second switch assembly through the control line, so that the first common voltage line is coupled to the first signal transmission line, and the second common voltage line is coupled to the second signal transmission line. Providing a first test voltage to the first signal transmission line and a second test voltage to the second signal transmission line, so that the panel displays the test pattern. And judging whether the test pattern accords with the default pattern. When the test pattern is judged to be consistent with the default pattern, a detection normal message is generated. When the test pattern is judged not to be consistent with the default pattern, detection error information is generated. Drawings In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below, wherein: Fig. 1 is a schematic diagram of an electronic device according to an embodiment of the invention. Fig. 2 is a schematic diagram of an electronic device according to another embodiment of the invention. Fig. 3 is a schematic diagram of an electronic device according to another embodiment of the invention. Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the invention. Fig. 5 is a cross-sectional view of the active region of fig. 4. Fig. 6 is a schematic diagram of a circuit layout of a first signal transmission line, a second signal transmission line, a control line and a circuit board according to an embodiment of the invention. Fig. 7 is a schematic diagram of a circuit layout of a first signal transmission line, a second signal transmission line, a control line, a first switch assembly, a second switch assembly and a circuit board according to an embodiment of the invention. Fig. 8 is a flowchart of a detection method of an electronic device according to an embodiment of the invention. Reference numerals: 100,200,300,400: electronic device 110,210,310,410 Panel 120 Substrate 121 Active area 122 Peripheral region 123 First side 124 Second side 130,220 First signal transmission line 132,222 Control lines 134 First common voltage line 140 Drive chip 150 Circuit board 160,224 Second Signal Transmission line 162 Second common voltage line 170,194,196,198,710,712 Connecting pad 180 Fir