US 12,293,034 B2
Display device with source driver having dummy terminals or common potential terminals
Chi-Cheng Chen, Hsin-Chu (TW); and Chun-Fan Chung, Hsin-Chu (TW)
Assigned to AUO CORPORATION, Hsin-Chu (TW)
Filed by AUO Corporation, Hsin-Chu (TW)
Filed on Dec. 15, 2023, as Appl. No. 18/540,948.
Claims priority of application No. 112114587 (TW), filed on Apr. 19, 2023.
Prior Publication US 2024/0353941 A1, Oct. 24, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); H05K 1/02 (2006.01)
CPC G06F 3/0412 (2013.01) [G06F 3/044 (2013.01); H05K 1/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device, comprising:
an in-cell touch display panel comprising:
a plurality of touch sensing electrodes separated from one another;
a plurality of touch sensing pins electrically connected to the plurality of touch sensing electrodes;
a plurality of pixel electrodes; and
a plurality of source pins electrically connected to the plurality of pixel electrodes;
a flexible printed circuit board comprising:
a plurality of dummy pads;
a plurality of touch sensing leads electrically connected to the plurality of dummy pads and the plurality of touch sensing pins of the in-cell touch display panel;
a plurality of input pads;
a plurality of output pads; and
a plurality of output signal leads electrically connected to the plurality of output pads and the plurality of source pins of the in-cell touch display panel; and
a source driver comprising:
a plurality of input terminals electrically connected to the plurality of input pads of the flexible printed circuit board;
a plurality of output terminals electrically connected to the plurality of output pads of the flexible printed circuit board; and
a plurality of dummy terminals electrically connected to the plurality of dummy pads of the flexible printed circuit board, wherein the plurality of dummy terminals is floating or electrically connected to one another,
wherein the source driver does not comprise a touch sensing terminal.