The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 30, 2023

Filed:

Sep. 28, 2020
Applicants:

Ordos Yuansheng Optoelectronics Co., Ltd., Inner Mongolia, CN;

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Jingwei Hou, Beijing, CN;

Peirong Huo, Beijing, CN;

Li Wang, Beijing, CN;

Xin Zhao, Beijing, CN;

Jingyi Xu, Beijing, CN;

Xiaojie Wang, Beijing, CN;

Jianyun Xie, Beijing, CN;

Wulijibaier Tang, Beijing, CN;

Yanhao Sun, Beijing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1362 (2006.01); G02F 1/133 (2006.01); G02F 1/1333 (2006.01); G06F 3/041 (2006.01); G02F 1/1335 (2006.01); G06F 3/044 (2006.01); G06F 3/045 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01);
U.S. Cl.
CPC ...
G02F 1/136218 (2021.01); G02F 1/13306 (2013.01); G02F 1/13338 (2013.01); G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G06F 3/044 (2013.01); G06F 3/045 (2013.01); G06F 3/0412 (2013.01); G02F 1/1368 (2013.01); G02F 1/13439 (2013.01); G06F 2203/04107 (2013.01);
Abstract

The application discloses a touch display device, including a liquid crystal display panel, a touch electrode, and a backlight module on a light incident side of the liquid crystal display panel. The backlight module includes a metal back plate. The touch display device further includes a shielding electrode on a side of the touch electrodes facing the backlight module, both the shielding electrode and the metal back plate are grounded. The touch electrode and the shielding electrode form a capacitor, and the product of a capacitance value of the capacitor and a resistance value of the shielding electrode is smaller than a pulse width of touch signals applied to the touch electrodes.


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