Invention Grant
- Patent Title: Digital-to-analog conversion circuit and data driver
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Application No.: US16800835Application Date: 2020-02-25
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Publication No.: US11356113B2Publication Date: 2022-06-07
- Inventor: Hiroshi Tsuchi
- Applicant: LAPIS Semiconductor Co., Ltd.
- Applicant Address: JP Yokohama
- Assignee: LAPIS Semiconductor Co., Ltd.
- Current Assignee: LAPIS Semiconductor Co., Ltd.
- Current Assignee Address: JP Yokohama
- Agency: Rabin & Berdo, P.C.
- Priority: JPJP2019-45089 20190312
- Main IPC: G09G5/10
- IPC: G09G5/10 ; H03M1/78 ; H03M1/68 ; H03F3/45 ; G09G3/20

Abstract:
A digital-to-analog conversion circuit includes: a decoder that, if set to a first selection state, selects two different reference voltages from a reference voltage group on the basis of a digital data signal and outputs the two reference voltages as first and second selection voltages, and if set to a second selection state, selects two reference voltages from the reference voltage group in a manner allowing redundancy and outputs the two reference voltages as the first and second selection voltages; and an amplifier circuit that amplifies and outputs a voltage obtained by averaging a combination of the first and second selection voltages with weighting factors set in advance.
Public/Granted literature
- US20200295775A1 DIGITAL-TO-ANALOG CONVERSION CIRCUIT AND DATA DRIVER Public/Granted day:2020-09-17
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