Pixel circuit for liquid crystal display using static memory
AssigneeIndustrial Technology Research Institute
InventorsJan-Ruei Lin, Bowen Wang, Shang-Li Chen
Life of this patent
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Abstract
A Pixel Circuit For Liquid Crystal Display Using Static Memory is disclosed, wherein a digital circuit is installed at a pixel of the liquid crystal display (LCD) for processing static image. The digital circuit works with an analog circuit for processing dynamic image. Several multiplexers and static memory are provided to enhance the digital and analog signal processing, for lowering the power consumption so as to accomplish power saving function of a Pixel Circuit For Liquid Crystal Display Using Static Memory.
Claims8
A pixel circuit for a liquid crystal display using a static memory for lowering power consumption by combining an analog and a digital circuit, wherein the circuit comprises:
- a first multiplexer, having a plurality of current switching elements;
- a demultiplexer, having a plurality of current switching elements;
- a static memory, connecting to a scanning line connected to the first multiplexer and the demultiplexer, for storing the digital voltage signals stored in the demultiplexer;
- a thin film transistor, for connecting a scanning line and a data line, acting as a control switch of the circuit;
- a capacitor, connected to the thin film transistor, where analog or digital signals from the data line are stored;
- and
- a switch device, connected to the first multiplexer, the demultiplexer and a liquid crystal unit.
Dependencies are inferred from the claim text.