Patents by Inventor CHIEN-HE LAI

CHIEN-HE LAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for control of electrochromic device
    Patent number: 9335602
    Abstract: A method for control of electrochromic devices is revealed. First a duty cycle of PWM is changed to a preset Q value according to a signal detected by a detector while the electrochromic device is switched to the colored state. The Q value represents electric charge that corresponds to colored-state transmittance. Then turn off the PWM. Thus the response time for coloration and the transmittance of the electrochromic device are maintained within a preset range, without being affected by ambient temperature, setting time and aging of the materials used. Thus the electrochromic device is more convenient to use and having more practical value.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 10, 2016
    Assignee: Tintable Kibing Co., Ltd.
    Inventors: Yi-Wen Chung, Chien-He Lai
  • METHOD FOR CONTROL OF ELECTROCHROMIC DEVICE
    Publication number: 20160026059
    Abstract: A method for control of electrochromic devices is revealed. First a duty cycle of PWM is changed to a preset Q value according to a signal detected by a detector while the electrochromic device is switched to the colored state. The Q value represents electric charge that corresponds to colored-state transmittance. Then turn off the PWM. Thus the response time for coloration and the transmittance of the electrochromic device are maintained within a preset range, without being affected by ambient temperature, setting time and aging of the materials used. Thus the electrochromic device is more convenient to use and having more practical value.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: YI-WEN CHUNG, CHIEN-HE LAI