Measurement device for measuring gray-to-gray response time
AssigneeMStar Semiconductor, Inc.
InventorsTsung-Yi Tsai, Tsung-Yu Tsai, Yi-Fan Chen
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Abstract
The present invention discloses a measurement device for measuring the gray-to-gray response time. The measurement device is capable of precisely measuring the gray-to-gray response time of an LCD. According to a video signal comprising a synchronous message, the measurement device obtains the initial time and the final time of each gray-to-gray response time interval in the transition of LCD luminance, so as to achieve synchronous measurement of the LCD gray-to-gray response time.
Claims18
A measurement device for measuring a gray-to-gray response time of a liquid crystal display (LCD), the measurement device comprising:
- a signal generating unit for generating a video signal comprising a synchronous message;
- a data processing unit coupled to the signal generating unit for recording the synchronous message and controlling the LCD to generate an optic signal according to the video signal;
- and
- a data acquisition unit coupled to the data processing unit for converting the optic signal into a digital data so that the data processing unit measures the gray-to-gray response time of the LCD according to the synchronous message and the digital data.
A measurement device for measuring a gray-to-gray response time of a liquid crystal display (LCD), the measurement device comprising:
- a micro-controller for generating a sampling command capable of being synchronized with a synchronous message according to a video signal comprising the synchronous message;
- a scaler for performing a scaling operation on the video signal so as to control the LCD to generate an optic signal;
- a data acquisition unit for processing a signal recording information of the optic signal so as to output an electric signal;
- and
- an analog-to-digital converter for converting the electric signal into a digital data according to the sampling command,
- wherein the microcontroller measures the gray-to-gray response time of the LCD according to the synchronous message and the digital data.
Dependencies are inferred from the claim text.