US 12,481,183 B2
Anti-peep module and anti-peep display device including the same
Chia-Yu Liu, Tainan (TW); Ding-Wei Liu, Kaohsiung (TW); Shu-Chan Hsiao, Tainan (TW); Yen-Chung Chen, Taichung (TW); and Cheng-Yen Yeh, Taichung (TW)
Assigned to HANNSTAR DISPLAY CORPORATION, Taipei (TW)
Filed by HANNSTAR DISPLAY CORPORATION, Taipei (TW)
Filed on Sep. 3, 2024, as Appl. No. 18/822,572.
Claims priority of application No. 112151314 (TW), filed on Dec. 28, 2023.
Prior Publication US 2025/0216710 A1, Jul. 3, 2025
Int. Cl. G02F 1/133 (2006.01); G02F 1/13 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01)
CPC G02F 1/13306 (2013.01) [G02F 1/1323 (2013.01); G02F 1/1337 (2013.01); G02F 1/134309 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An anti-peep module, comprising:
an anti-peep element comprising a liquid crystal layer, a first anti-peep electrode layer and a second anti-peep electrode layer, wherein the liquid crystal layer is located between the first anti-peep electrode layer and the second anti-peep electrode layer;
a temperature sensor adapted to sense an ambient temperature, wherein the temperature sensor comprises a thermistor;
a voltage adjustment circuit coupled to the temperature sensor; and
a driving circuit coupled to the voltage adjustment circuit and the anti-peep element;
wherein when the ambient temperature is a first ambient temperature and the anti-peep element operates in an anti-peep mode, the thermistor has a first resistance value, the voltage adjustment circuit outputs a first control signal to the driving circuit according to the first resistance value of the thermistor, the driving circuit outputs a first driving voltage to the anti-peep element according to the first control signal; when the ambient temperature is a second ambient temperature and the anti-peep element operates in the anti-peep mode, the thermistor has a second resistance value, the voltage adjustment circuit outputs a second control signal to the driving circuit according to the second resistance value of the thermistor, the driving circuit outputs a second driving voltage to the anti-peep element according to the second control signal, wherein the first ambient temperature is greater than the second ambient temperature, the first resistance value is different from the second resistance value, the first control signal is different from the second control signal, and an absolute value of the first driving voltage is less than an absolute value of the second driving voltage.