LCD Image Compensation Using Temperature-Adaptive LUTs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display (LCD) panels face image distortion due to temperature variations, which existing dynamic capacitance compensation technologies do not adequately address, leading to suboptimal response speeds and display quality.
Innovation Solution
A method and apparatus for compensating image data using a look-up table (LUT) that generates compensation data based on temperature values and positions within the display panel, allowing for precise adjustment of liquid crystal molecule orientation to enhance display quality by interpolating between nearest temperature values and using multiple LUTs for different space areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If existing dynamic capacitance compensation technology is used, then response speed of liquid crystal molecules is enhanced, but image distortion due to temperature variations is not adequately addressed
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting compensation values based on temperature variations. The system stores multiple compensation values corresponding to different temperature ranges and selects the appropriate compensation value based on the current temperature, thereby adapting the compensation parameter to maintain image quality across varying temperature conditions while preserving response speed enhancements
Solution Approach 2:
The patent implements dynamics by transitioning from static compensation to dynamic temperature-adaptive compensation. The system continuously monitors temperature and dynamically switches between different compensation values stored in memory, enabling the compensation mechanism to adapt in real-time to temperature changes and maintain optimal image quality without sacrificing response speed
2Reliability
If compensation data is generated using LUT mapped to previous frame data, then temperature-based compensation is achieved, but spatial variations across display panel are not addressed
Solution Approach 1:
The patent applies local quality by dividing the display panel into multiple spatial zones and generating separate compensation data for each zone using multiple LUTs. Each LUT is mapped to a specific spatial area, allowing the system to compensate for both temperature variations and spatial non-uniformities across the display panel, thereby achieving both temperature compensation and display uniformity
3Device complexity
If single LUT is used for compensation, then processing is simplified, but both temperature and spatial variations cannot be compensated simultaneously
Solution Approach 1:
The patent applies segmentation by dividing the compensation function into multiple specialized LUTs, where each LUT handles a specific spatial zone. This segmentation allows the system to simultaneously compensate for both temperature variations and spatial non-uniformities without excessive complexity, as each LUT is optimized for its specific region while collectively providing comprehensive compensation across the entire display panel
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 approach effectively minimizes image distortion and enhances display quality by adapting to temperature changes and spatial variations, improving the response speed and accuracy of liquid crystal molecules, thereby maintaining high image quality across different temperature conditions.
Implementation Method 1
The liquid crystal layer includes liquid crystal molecules which have a physical characteristic such that they may alter the polarization of light passing therethrough
Implementation Method 2
When an electric field is applied to the liquid crystal molecules, an arrangement of the liquid crystal molecules is altered, thereby also altering the orientation of their polarization directions
Data Source
AI summary
A method of compensating image data, the method includes generating a compensation data of an image data in accordance with a temperature value by using a compensation data of a previous frame and a compensation data generated through a look-up table which is mapped with corresponding to a compensation data of a previous frame and a set temperature value which is smaller than and closest to the temperature value or which is greater than and closest to the temperature value among set temperature values.