Drive circuit of current driving type panel display

Abstract

The invention relates to a driving circuit related to a kind of current driving plane monitor. It includes: memory capacitance, transmission gate and throttle transistor. The first end of the memory capacitance is coupled to the system voltage; the voltage of the second end is storage voltage. The first output and input ends of the transmission gate are coupled to the storage voltage. The second output and input ends are coupled to the data current source. The first gate electrode of the transmission gate is coupled to the first signal; the second gate electrode is coupled to the second signal. The gate electrode of the transistor is coupled to the storage voltage, the first source electrode and the first drainage electrode are coupled to the system voltage, the second source electrode and first drainage electrode provide the driving current. The invention uses two complementary transistors to form a transmission gate, the transmission gate controls the sampling of data of the storage capacitance, the storage capacitance is reduced, thus the picture element can be operated with a higher frequency, and the resolution of the monitor is upgraded greatly.

Description

technical field [0001] The invention relates to a driving circuit of a flat display, in particular to a driving circuit of a current-driven flat display. Background technique [0002] Stepping into the information age of the 21st century, the interface between human beings and electronic products—displays—has become more and more important as life styles change. With the development of technology generation after generation, the traditional Cathode RayTube (CRT) display can no longer meet the demand. It will be replaced by a flat panel display (FPD) that is thin, light, power-saving, and high-quality, and will become the mainstream of the next-generation display. At present, liquid crystal displays (LCDs) are the majority of flat panel displays. However, liquid crystal displays have disadvantages such as insufficient viewing angles and insufficient response speeds, resulting in afterimage problems when playing animations. At the same time, because the liquid crystal displa...

AI Technical Summary

Problems solved by technology

In order to solve the problems existing in the driving circuit of the current-driven flat panel display, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and there is no suitable structure for general products to solve the problem. The above-mentioned problems are obviously the problems that relevant industry players are eager to solve

Images