Reference voltage selection device and source driver device and display device using the same
OwnerChien-Hsien Kaoinventor
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Abstract
A reference voltage selection device suitable for a display device comprising a digital to analog converter is provided. The digital to analog converter may include a plurality of input terminals and may be adopted for providing a displaying voltage to the display device. The selection device may include a reference voltage selector for receiving a plurality of basic reference voltages, wherein the reference voltage selector is suitable for selecting a relationship between the basic reference voltages and the input terminals to reduce an error between the displaying voltage and a predetermined standard voltage.
Claims25
A selection device of reference voltage, suitable for a display device comprising a digital to analog converter having a plurality of input terminals suitable for providing a predetermined displaying voltage to the display device, the selection device comprising:
- a reference voltage selector, for receiving a plurality of basic reference voltages and selecting a relationship between the basic reference voltages and the input terminals to reduce an error between the displaying voltage and a predetermined standard voltage.
A source driver device for a display device, comprising:
- a receiving device, for receiving and registering an input data and outputting a plurality of digital data in parallel;
- a digital to analog converter, connected to the receiving device, for receiving and converting the digital data into a plurality of displaying voltages, wherein the digital to analog converter comprises a plurality of input terminals;
- an output buffer, connected to the digital to analog converter, for outputting each of the displaying voltages to a data line;
- and
- a reference voltage selector, for receiving a plurality of basic reference voltages, for selecting a relationship between the basic reference voltages and the input terminals to reduce an error between the displaying voltage and a predetermined standard voltage.
A display device, comprising:
- a panel, comprising a plurality of pixels, wherein each of the pixels comprises a transistor;
- a gate driver, comprising a plurality of scan lines, wherein each of the scan lines is connected to a gate of one of the transistors of the pixels of the liquid crystal panel;
- and
- a source driver, comprising a plurality of data lines, wherein each of the data lines is connected to a source of one of the transistors of the pixels of the liquid crystal panel, the source driver comprises:
- a receiving device, for receiving and registering an input data, and outputting a plurality of digital data in parallel;
- a digital to analog converter, connected to the receiving device, for receiving and converting the digital data into a plurality of displaying voltages, wherein the digital to analog converter comprises a plurality of input terminals;
- an output buffer, connected to the digital to analog converter, for outputting each of the displaying voltages to one of the data lines;
- and
- a reference voltage selector, for receiving a plurality of basic reference voltages, for selecting a relationship between the basic reference voltages and the input terminals to reduce an error between the displaying voltage and a predetermined standard voltage.
Dependencies are inferred from the claim text.