Flexible Display Temperature Compensation for Uniform Luminance
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Solution Overview
Problem
Existing electronic devices with flexible displays face challenges in maintaining consistent display quality due to temperature variations across different regions, leading to uneven luminance and image quality issues when folded or bent.
Innovation Solution
Incorporating temperature sensors to measure temperatures in separate display regions and a driving controller to generate voltage control signals based on these temperature differences, adjusting initialization voltages to pixels in each region to maintain consistent display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If flexible display is folded or bent to reduce size, then portability is improved, but temperature distribution uniformity deteriorates causing uneven luminance
Solution Approach 1:
The display panel is divided into multiple temperature zones (first display region and second display region) with separate temperature sensors for each region. This segmentation allows independent temperature monitoring and compensation for each zone, resolving the uniformity issue caused by folding-induced thermal gradients.
Solution Approach 2:
Different initialization voltages are applied to different display regions based on their respective temperatures. The first initialization voltage is applied to the first display region while the second initialization voltage is applied to the second display region, allowing each region to be optimized for its local thermal conditions.
2Manufacturing precision
If temperature compensation is implemented with separate sensors and voltages, then display quality uniformity is improved, but device complexity increases
Solution Approach 1:
The voltage generator is designed to generate multiple initialization voltages (first and second initialization voltages) using a unified circuit structure. This multi-functional design allows the same voltage generation mechanism to serve multiple temperature zones, reducing overall system complexity while maintaining display quality uniformity.
Solution Approach 2:
The temperature sensors automatically monitor their respective regions and the driving controller automatically selects appropriate initialization voltages based on temperature readings. This self-service mechanism reduces the need for external intervention and simplifies the control architecture.
Data Source
AI summary
Provided is an electronic device comprising a display panel in which a first display region and a second display region are defined and which has a first pixel and a second pixel, a first temperature sensor which measures a first temperature of the first display region, a second temperature sensor which measures a second temperature of the second display region, a voltage generator which generates a first initialization voltage and a second initialization voltage, and a driving controller. The driving controller may generate a voltage control signal on the basis of the first temperature and the second temperature, and the voltage generator may provide, on the basis of the voltage control signal, the first initialization voltage to the first pixel and the second initialization voltage to the second pixel.