Display Device Thermoelectric Power Generation
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Solution Overview
Problem
As display device technology advances, increasing panel size and resolution lead to higher power consumption, making it urgent to develop techniques for reducing power consumption in display devices like LCDs and LEDs.
Innovation Solution
Incorporating a thermoelectric generation portion that converts heat generated by the signal controller, power supply, and data driver into electrical energy, which is then used to generate auxiliary driving voltages, reducing the reliance on external power sources and lowering overall power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If panel size and resolution are increased, then display quality is improved, but power consumption increases
Solution Approach 1:
The patent converts the waste heat generated by the display device into useful electrical energy through thermoelectric generators. The heat that would normally be dissipated is instead utilized to generate power, directly addressing the power consumption issue while maintaining high resolution and panel size capabilities
2Area of stationary object
If panel size is increased, then display area is improved, but power consumption increases
Solution Approach 1:
The display device becomes self-sufficient by generating its own power through thermoelectric conversion of waste heat. The system uses its own operational heat to power its components, reducing or eliminating the need for external power sources and enabling larger display areas without proportionally increasing power consumption
3Measurement precision
If resolution is increased, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent transforms the energy loss in the form of waste heat into useful electrical energy. This conversion process directly compensates for the increased power consumption associated with higher resolution displays, allowing improved image quality without the expected energy penalty
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The display device can self-generate power, reducing external power consumption and maintaining device operation by utilizing thermoelectrically generated energy to supply necessary voltages, thereby addressing the challenge of increasing power demands with larger and higher resolution displays.
Implementation Method 1
a thermoelectric generation portion (e.g. thermoelectric generator) that generates electrical energy by using heat generated by at least one of the signal controller, the power supply, and the data driver
Data Source
AI summary
A display device and method of operation that provides self-generated power. The device includes: a display portion including a plurality of pixels; a data driver applying a data signal to data lines connected to the plurality of pixels; a signal controller transmitting an image data signal for generation of the data signal to the data driver; a power supply generating a driving voltage for operation of the signal controller and the data driver; a thermoelectric generation portion generating electrical energy by using heat generated by at least one of the signal controller, the power supply, and the data driver; and a converter generating an auxiliary driving voltage that is the same as the driving voltage by using the electrical energy.