US 12,443,065 B2
Display apparatus
Chih-Hsuan Kuo, Hsin-Chu (TW); Ming-Hsiung Fan, Hsin-Chu (TW); Yi-Cheng Lin, Hsin-Chu (TW); Chin-Lung Chen, Hsin-Chu (TW); Cheng-Wei Zhu, Hsin-Chu (TW); and Chin-Yuan Chang, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Dec. 3, 2023, as Appl. No. 18/527,358.
Claims priority of application No. 202223270554.2 (CN), filed on Dec. 7, 2022.
Prior Publication US 2024/0192538 A1, Jun. 13, 2024
Int. Cl. G02F 1/1333 (2006.01); G02F 1/1347 (2006.01)
CPC G02F 1/13338 (2013.01) [G02F 1/1347 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display apparatus, having a privacy mode and a sharing mode, comprising:
a display panel, configured to provide an image beam;
a privacy liquid crystal module, voltage-controlled to switch the display apparatus between the privacy mode and the sharing mode, wherein the privacy liquid crystal module is disposed on the display panel, and the privacy liquid crystal module is disposed on a transmission path of the image beam; and
a touch sensing module, disposed on a side of the privacy liquid crystal module and configured to generate a touch signal, wherein
when the display apparatus is in the privacy mode, the privacy liquid crystal module is applied with a first voltage;
when the display apparatus is in the sharing mode, the privacy liquid crystal module is applied with a second voltage or a third voltage;
when the display apparatus is in the sharing mode and the touch sensing module generates the touch signal, the display apparatus is maintained in the sharing mode and the privacy liquid crystal module is applied with the second voltage for a predetermined time, after the privacy liquid crystal module is applied with the second voltage for the predetermined time, the privacy liquid crystal module is applied with the third voltage, and the third voltage is less than the second voltage, and the third voltage is less than the first voltage.