US 11,754,867 B1
Privacy device and privacy display apparatus
Guang-Shiung Chao, Tainan (TW); Hsuan-Chen Liu, Kaohsiung (TW); and Ling-Chih Kao, New Taipei (TW)
Assigned to HannStar Display Corporation, Taipei (TW)
Filed by HannStar Display Corporation, Taipei (TW)
Filed on Feb. 21, 2023, as Appl. No. 18/171,663.
Claims priority of application No. 202210237811.8 (CN), filed on Mar. 11, 2022.
Int. Cl. G02F 1/13 (2006.01); G02F 1/1343 (2006.01); G02F 1/1345 (2006.01); G02F 1/1333 (2006.01); G02F 1/1339 (2006.01)
CPC G02F 1/1323 (2013.01) [G02F 1/1339 (2013.01); G02F 1/13452 (2013.01); G02F 1/133345 (2013.01); G02F 1/134309 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A privacy device having a display area and a non-display area, wherein the privacy device comprises:
a first substrate;
a first privacy electrode disposed on the first substrate, wherein a first portion of the first privacy electrode is in the display area, and a second portion of the first privacy electrode is in the non-display area;
a first pad and a second pad disposed on the first substrate, wherein the first pad and the second pad are in the non-display area and coupled to the first privacy electrode;
a first connection electrode disposed on the first substrate and in the non-display area, wherein the first connection electrode is electrically insulated from the first privacy electrode;
a third pad and a fourth pad disposed on the first substrate, wherein the third pad and the fourth pad are in the non-display area and coupled to the first connection electrode, and the first pad and the second pad are disposed between the third pad and the fourth pad;
a second substrate;
a liquid-crystal layer disposed between the first substrate and the second substrate;
a second privacy electrode disposed on a surface of the second substrate facing the liquid-crystal layer, wherein a first portion of the second privacy electrode is in the display area, and a second portion of the second privacy electrode is in the non-display area; and
a sealant disposed between the first substrate and the second substrate, wherein the sealant comprises a plurality of conductors, and the first connection electrode, the sealant, and the second portion of the second privacy electrode overlap with each other along a direction perpendicular to a top surface of the first substrate.