Test circuit for digital to analog converter in liquid crystal display driver
First Claim
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1. A test device for testing a digital to analog converter, comprising:
- a gamma reference unit for generating a plurality of analog signals different from each other;
a temporary storing unit for generating a plurality of digital signals different from each other;
a decoder for selecting one of the plurality of analog signals or one of the plurality of digital signals in response to a digital code signal; and
a switching unit for controlling a connection between the decoder and the gamma reference unit and between the decoder and the temporary storing unit according to an operation mode.
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Abstract
A test device for testing a digital to analog converter includes a gamma reference unit for generating a plurality of analog signals different from each other; a temporary storing unit for generating a plurality of digital signals different from each other; a decoder for selecting one of the plurality of analog signals or one of the plurality of digital signals in response to a digital code signal; and a switching unit for controlling a connection between the decoder and the gamma reference unit and between the decoder and the temporary storing unit according to an operation mode.
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Citations
8 Claims
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1. A test device for testing a digital to analog converter, comprising:
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a gamma reference unit for generating a plurality of analog signals different from each other;
a temporary storing unit for generating a plurality of digital signals different from each other;
a decoder for selecting one of the plurality of analog signals or one of the plurality of digital signals in response to a digital code signal; and
a switching unit for controlling a connection between the decoder and the gamma reference unit and between the decoder and the temporary storing unit according to an operation mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification