Invention Application
- Patent Title: DIGITAL LIGHT MODULATOR CONFIGURED FOR ANALOG CONTROL
- Patent Title (中): 配置用于模拟控制的数字光调制器
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Application No.: US13939803Application Date: 2013-07-11
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Publication No.: US20150015616A1Publication Date: 2015-01-15
- Inventor: Edward Buckley , Fahri Yaras , Ilias Pappas
- Applicant: Pixtronix, Inc.
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
This disclosure provides systems, methods and apparatus for providing analog control for operating the states of a light modulator in a pixel. In one aspect, a pixel circuit can be coupled to the light modulator, and can control the duration for which the light modulator is operated in an open or closed state based on an analog data voltage. In some implementations, the pixel circuit includes a voltage controlled current source (VCCS), which draws a current of a magnitude that is based on the magnitude of the data voltage. The current drawn by the VCCS can be used to control a charge and a voltage on an actuation capacitor coupled to the light modulator. The rate of change of the voltage on the actuation capacitor, and the duration for which the light modulator is maintained in a particular state, is a function of the data voltage applied to the VCCS.
Public/Granted literature
- US09082340B2 Digital light modulator configured for analog control Public/Granted day:2015-07-14
Information query
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