Calibrating circuit and calibrating method for display panel
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United States of America Patent
Stats
-
Sep 5, 2017
Grant Date -
Oct 27, 2016
app pub date -
Apr 21, 2015
filing date -
Apr 21, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit and a calibrating method are provided. A pixel sensor senses a terminal voltage of a driving transistor during a sensing period. A calibration sensor senses a first predetermined voltage and a second predetermined voltage during a calibration period. An amplifying circuit amplifies the terminal voltage according to a gain, and amplifies the first predetermined voltage and the second predetermined voltage according to the gain. An analog to digital converter converts the amplified terminal voltage into a digital code, and converts the amplified first predetermined voltage into a first digital code and converts the amplified second predetermined voltage into a second digital code. A gain adjusting circuit adjusts the gain according to the first digital code and the second digital code. Accordingly, the gain of the amplifying circuit is calibrated.
First Claim
Family
International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- H03M:CODING, DECODING OR CODE CONVERSION, IN GENERAL
- H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
- G09G:ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING....
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- G06F:ELECTRIC DIGITAL DATA PROCESSING
- H03F:AMPLIFIERS
- [Classification Symbol]
- [Patents Count]
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