LCD Supporting Posts with Temperature Sensing and Organic Spheres
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Solution Overview
Problem
Conventional LCD panels face a low yield rate due to poor performance of supporting posts, which require different elastic recovery rates during high-temperature and low-air-pressure tests, making them difficult to test effectively.
Innovation Solution
An LCD device with a temperature sensing driver chip and control electrodes on the supporting posts, along with organic material spheres, allows for controlled height adjustments of the posts based on temperature changes, enhancing their performance and stress tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the elastic recovery rate of supporting posts is increased for high-temperature testing, then the supporting posts can maintain thickness uniformity during thermal expansion, but the supporting posts become difficult to test during low air pressure testing due to excessive rebound
Solution Approach 1:
The supporting post structure is designed with dynamic characteristics that allow it to adapt to different testing conditions. The post can exhibit different elastic recovery behaviors depending on the testing environment, enabling it to maintain thickness uniformity during high-temperature tests while controlling rebound during low air pressure tests.
Solution Approach 2:
The elastic recovery rate of the supporting posts is optimized by adjusting material parameters and structural dimensions. By carefully selecting the elastic modulus, diameter, and height of the supporting posts, the system achieves appropriate stiffness to maintain thickness uniformity during thermal expansion while preventing excessive rebound during low air pressure testing.
2Object-affected harmful factors
If the elastic recovery rate of supporting posts is decreased for low air pressure testing, then the supporting posts can control rebound and prevent layer damage, but the supporting posts fail to maintain thickness uniformity during high-temperature testing
Solution Approach 1:
The supporting post structure is designed with dynamic characteristics that allow it to adapt to different testing conditions. The post can exhibit different elastic recovery behaviors depending on the testing environment, enabling it to maintain thickness uniformity during high-temperature tests while controlling rebound during low air pressure tests.
Solution Approach 2:
The elastic recovery rate of the supporting posts is optimized by adjusting material parameters and structural dimensions. By carefully selecting the elastic modulus, diameter, and height of the supporting posts, the system achieves appropriate stiffness to maintain thickness uniformity during thermal expansion while preventing excessive rebound during low air pressure testing.
3Device complexity
If conventional supporting posts are used without control mechanisms, then the device structure remains simple, but the supporting posts cannot be effectively tested and yield rate decreases
Solution Approach 1:
The supporting posts are designed to automatically adjust their height in response to temperature changes through the integrated temperature sensing driver chip. This self-adjusting mechanism eliminates the need for complex external control systems while ensuring proper support during testing, thereby maintaining thickness uniformity and improving yield rate without significantly increasing device complexity.
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 solution improves the yield rate of LCD panels by ensuring the supporting posts respond appropriately to temperature and stress tests, preventing damage and ensuring proper support for the liquid crystal cell.
Implementation Method 1
a temperature sensing driver chip, wherein the temperature sensing driver chip is configured to sense changes in temperature, and outputs a voltage signal according to the changes in temperature
Implementation Method 2
A side of at least one of the supporting posts is provided with a control electrode, the control electrode is connected to the temperature sensing driver chip and is configured to control heights of the supporting posts
Data Source
AI summary
The disclosure provides a liquid crystal display (LCD) device and a manufacturing method thereof. A temperature sensing driver chip is disposed in the LCD device and can output a voltage signal to a control electrode according to changes in temperature. Therefore, an electric field is formed between the control electrode and a common electrode. Heights of a plurality of supporting posts can be changed by the electric field to control stretching and shrinking of the control electrode, thereby improving performance of the supporting posts. Thus, a plurality of organic material spheres disposed in the supporting posts can improve stress tolerance of the supporting posts, thereby further improving performance of the supporting posts.