Light Emission Control Circuit for OELD Signal Stability
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Solution Overview
Problem
Existing display technologies face challenges in providing a stable light emission control signal for organic electroluminescent displays (OELD), which is crucial for accurate and stable image display.
Innovation Solution
A light emission control circuit comprising a filtering module, a first control module, a second control module, and an output module, which controls the potential of nodes and outputs enable and disable levels of the light emission control signal time-divisionally to stabilize the signal and ensure accurate light emission from pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a light emission control circuit is used to control pixels to emit light, then the display function is achieved, but the stability and accuracy of the light emission control signal may be insufficient
Solution Approach 1:
The light emission control circuit is divided into multiple functional modules: a first control module for controlling the potential of a first node, a second control module for controlling the potential of a second node, and an output module for generating the light emission control signal. This segmentation allows each module to independently optimize its function, improving both signal stability and accuracy without increasing overall system complexity.
2Reliability
If the potential of nodes is controlled to stabilize the light emission control signal, then the stability is improved, but the circuit complexity increases
Solution Approach 1:
The first control module and second control module are integrated within a single light emission control circuit, sharing common structural elements and control mechanisms. This merging approach allows the circuit to achieve stable node potential control while avoiding the complexity of completely separate control systems, as the modules work cooperatively within a unified architecture.
Data Source
AI summary
Provided are a light emission control circuit, a display panel and a display device. The light emission control circuit includes a first control module configured to control the potential of a first node and the potential of a second node according to an input signal of a signal input terminal, a first clock signal of a first clock terminal and a second clock signal of a second clock terminal; a second control module configured to control the potential of a third node under control of the first control module, the first clock signal, the second clock signal, a first level signal of a first level terminal and a second level signal of a second level terminal; an output module configured to control, according to the first level signal and the potential of the first node, a signal output terminal to output the enable level of a light emission control signal.