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公开(公告)号：US20230410702A1
公开(公告)日：2023-12-21
申请号：US18239725
申请日：2023-08-29
发明人： Jun Young KO , Tae Joon Kim , Eun Sol Seo , Yu Jin Sin , Jun Seong Lee , Jae Woo Choi
IPC分类号： G09G3/00 , G06F3/041 , G09G3/3233
CPC分类号： G09G3/006 , G06F3/0412 , G09G3/3233 , G09G2330/10 , G09G2330/021 , G06F3/0416 , G09G2300/0819 , G06F3/0446
摘要： An apparatus for inspecting a display device including a touch sensor may include: a power source generator configured to generate a pixel voltage of the display device; and a variable impedance circuit electrically connected to an output terminal of the power source generator, wherein the variable impedance circuit may include: a variable resistance circuit electrically connected to the power source generator and an output terminal of the variable impedance circuit, and including resistors connected in parallel with each other; and a variable capacitor circuit electrically connected to the power source generator and a ground voltage source.
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公开(公告)号：US11769430B2
公开(公告)日：2023-09-26
申请号：US17831330
申请日：2022-06-02
发明人： Jun Young Ko , Tae Joon Kim , Eun Sol Seo , Yu Jin Sin , Jun Seong Lee , Jae Woo Choi
IPC分类号： G09G3/00 , G06F3/041 , G09G3/3233 , G06F3/044
CPC分类号： G09G3/006 , G06F3/0412 , G09G3/3233 , G06F3/0416 , G06F3/0446 , G06F2203/04111 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2330/021 , G09G2330/10
摘要： A method for inspecting a display device (which includes a pixel electrode and a touch sensor overlapping the pixel electrode) includes: adjusting an impedance value of a variable impedance circuit of an inspection apparatus according to a model of the display device; driving a power source generator of the inspection apparatus; supplying a pixel voltage to the pixel electrode through an output terminal connected to the variable impedance circuit; driving the touch sensor; and detecting a defect related to the pixel electrode based on sensing signals output from the touch sensor.
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