Lg display co., ltd. (20240203325). MICRO-LED PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME simplified abstract
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MICRO-LED PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME
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MICRO-LED PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240203325 titled 'MICRO-LED PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME
The patent application describes a micro-LED pixel circuit that improves the response speed and minimizes luminance decrease at low gray-scale levels in PWM operations.
- Driving transistor generates current path
- Emission transistor turns on in response to emission signal
- Micro-LED emits light based on current flow
- Precharge transistor biases anode electrode with precharge voltage before emission signal
Potential Applications: - Display technology - Lighting systems - Wearable technology
Problems Solved: - Slow response speed of micro-LEDs - Luminance decrease at low gray-scale levels
Benefits: - Improved response speed - Minimized luminance decrease - Enhanced performance in PWM operations
Commercial Applications: Title: Advanced Micro-LED Display Technology for High-Performance Applications This technology can be used in high-end displays, lighting systems, and wearable devices to enhance visual performance and energy efficiency.
Questions about Micro-LED Pixel Circuit: 1. How does the precharge transistor improve the performance of the micro-LED in PWM operations? The precharge transistor biases the anode electrode with a precharge voltage before emission, improving response speed and minimizing luminance decrease.
2. What are the key components of the micro-LED pixel circuit and how do they work together to enhance performance? The driving transistor, emission transistor, micro-LED, and precharge transistor work together to generate a current path, emit light, and bias the anode electrode with a precharge voltage, improving overall performance.
Original Abstract Submitted
a micro-led pixel circuit includes a driving transistor configured to generate a current path; an emission transistor configured to be turned on in response to an emission signal to generate the current path with the driving transistor; a micro-led configured to emit light based on a magnitude of a current flowing in the current path; and a precharge transistor configured to bias an anode electrode of the micro-led with a precharge voltage in response to a precharge signal, wherein the precharge signal is enabled before the emission signal is enabled, thereby biasing an anode electrode of a micro-led with a precharge voltage before emission in a pwm operation of the micro-led, and improving a response speed of the micro-led and minimizing luminance decrease at the low gray-scale.
