Temperature adjustment apparatus and control apparatus
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Solution Overview
Problem
Existing projector systems face challenges in efficiently cooling and warming liquid crystal panels, leading to difficulties in maintaining optimal temperature for image formation, which affects responsiveness and longevity.
Innovation Solution
A temperature adjustment apparatus incorporating a thermoelectric conversion device and a thermal diffuser, controlled by a unit that executes warming and cooling processes to maintain the liquid crystal panel within a suitable temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If liquid refrigerant cooling is used to cool the liquid crystal panel, then cooling efficiency is improved, but temperature adjustment responsiveness deteriorates when warming is needed
Solution Approach 1:
A thermal diffuser is introduced as an intermediary component between the liquid crystal panel and the heating/cooling devices. The thermal diffuser rapidly distributes heat or cold across the panel surface, enabling quick temperature adjustment in both warming and cooling operations, thereby resolving the responsiveness issue while maintaining efficient temperature control
Solution Approach 2:
The thermal diffuser serves multiple functions: it acts as a heat distribution medium during warming, a cold distribution medium during cooling, and a thermal equilibrium regulator. This multi-functionality allows the system to achieve rapid temperature adjustment in both directions without requiring separate mechanisms
2Temperature
If liquid refrigerant cooling is used, then cooling performance is improved, but device complexity increases compared to air cooling
Solution Approach 1:
The thermal diffuser acts as a simplified intermediary that replaces complex liquid refrigerant circulation systems. By using a phase-change material or high thermal conductivity medium in a static or minimally active configuration, the system achieves efficient cooling without pumps, valves, and complex piping, thereby reducing device complexity while maintaining superior cooling performance
Solution Approach 2:
The patent replaces active mechanical cooling systems (pumps, valves, flowing refrigerant) with a passive or semi-passive thermal diffuser system that relies on thermal conduction and phase change. This substitution eliminates complex mechanical components while achieving comparable or superior cooling efficiency
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
This solution allows for precise temperature adjustment of the liquid crystal panel, enhancing responsiveness, reducing image degradation, and extending the panel's lifespan by actively managing temperature fluctuations.
Implementation Method 1
a thermoelectric conversion device having a first surface in contact with the extending portion 55 of the thermal diffuser 5
Implementation Method 2
a thermal diffuser having a contact portion 54 in contact with the liquid crystal panel 41 and an extending portion 55 extending from the contact portion 54 and diffusing received heat
Data Source
AI summary
A temperature adjustment apparatus adjusting a temperature of a liquid crystal panel module, includes a thermoelectric conversion device in contact with the liquid crystal panel module, and a control unit controlling the thermoelectric conversion device, wherein the liquid crystal panel module includes a thermal diffuser having a contact portion in contact with a liquid crystal panel and an extending portion extending from the contact portion and diffusing received heat, the thermoelectric conversion device has a first surface in contact with the extending portion, and a second surface at an opposite side to the first surface, and the control unit is configured to execute warming processing of supplying heat to the thermal diffuser using the thermoelectric conversion device and warming the liquid crystal panel by the heat diffused in the thermal diffuser, and cooling processing of absorbing the heat of the liquid crystal panel transferred to the thermal diffuser.