US 11,836,310 B2
Touch display apparatus and test driving method for the same
Sz-Kai Huang, Taichung (TW); Cheng-Yen Yeh, Taichung (TW); Mu-Kai Kang, Tainan (TW); and Jing-Xuan Chen, Tainan (TW)
Assigned to HannStar Display Corporation, Taipei (TW)
Filed by HannStar Display Corporation, Taipei (TW)
Filed on Oct. 24, 2022, as Appl. No. 18/048,865.
Claims priority of application No. 202111326303.9 (CN), filed on Nov. 10, 2021.
Prior Publication US 2023/0141463 A1, May 11, 2023
Int. Cl. G06F 3/041 (2006.01); G02F 1/1368 (2006.01); G02F 1/1362 (2006.01); G02F 1/1345 (2006.01); G06F 3/044 (2006.01); G09G 3/00 (2006.01); G09G 3/36 (2006.01); G02F 1/1333 (2006.01); G09G 3/32 (2016.01)
CPC G06F 3/0412 (2013.01) [G02F 1/1368 (2013.01); G02F 1/13338 (2013.01); G02F 1/13458 (2013.01); G02F 1/136254 (2021.01); G02F 1/136286 (2013.01); G06F 3/044 (2013.01); G06F 3/0416 (2013.01); G09G 3/006 (2013.01); G09G 3/36 (2013.01); G09G 3/32 (2013.01); G09G 2300/0408 (2013.01); G09G 2300/0413 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0202 (2013.01); G09G 2330/12 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A touch display apparatus having a touch display panel with an active area and a peripheral area, the touch display panel comprising:
a substrate;
a plurality of touch electrodes disposed on the substrate and in the active area;
a plurality of touch sensing lines disposed on the substrate, each touch sensing line electrically connected to a corresponding one of the touch electrodes;
a plurality of dummy touch sensing lines disposed on the substrate, and the dummy touch sensing lines electrically connected with each other;
a plurality of first transistors disposed on the substrate and in the peripheral area, each of the first transistors having a first terminal, a second terminal and a control terminal, the first terminals of the first transistors electrically connected with each other, the second terminal of each of the first transistors electrically connected to a corresponding one of the touch sensing lines, and the control terminals of the first transistors electrically connected with each other; and
a potential line disposed on the substrate and in the peripheral area, the potential line electrically connected to the dummy touch sensing lines.