OLED Panel Load Optimization via Dynamic Luminance Control
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Solution Overview
Problem
As the luminance of organic light emitting display devices increases, so does the display panel load, leading to higher power consumption, which existing technologies have not effectively addressed.
Innovation Solution
An organic light emitting display device and method that includes a digital data converter to calculate and adjust the panel load, converting digital video data to optimize peak luminance, using conversion factors to reduce power consumption by limiting peak luminance when the panel load exceeds a certain threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the luminance of the organic light emitting display device is increased, then the display quality is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic luminance adjustment by continuously monitoring panel load and adapting peak luminance values in real-time. The display device transitions from static luminance settings to dynamic control, where luminance parameters are adjusted frame-by-frame based on actual power consumption conditions, resolving the contradiction between maintaining high display quality and reducing power consumption.
Solution Approach 2:
The patent changes the operational parameters of the display device by introducing conversion factors that modify digital video data based on panel load conditions. When panel load exceeds a threshold, the system applies luminance reduction conversion factors to adjust peak luminance values, thereby changing the electrical and optical parameters to reduce power consumption while maintaining acceptable display quality.
2Use of energy by moving object
If the peak luminance is reduced to lower power consumption, then the power consumption decreases, but the contrast ratio may be affected
Solution Approach 1:
The patent applies local quality adjustment by differentiating between different grayscale levels and applying selective luminance reduction. Instead of uniformly reducing all luminance values, the system applies conversion factors that selectively adjust peak luminance while preserving the quality characteristics of low grayscale levels, thereby maintaining contrast ratio while reducing overall power consumption.
Solution Approach 2:
The patent carefully adjusts luminance parameters through conversion factors that modify peak luminance values without compromising the fundamental contrast characteristics. By changing specific luminance parameters in a controlled manner based on panel load thresholds, the system achieves power reduction while preserving the visual quality and contrast ratio that users expect.
Data Source
AI summary
Provided is an organic light emitting display device including: a display panel including data lines, scan lines, and pixels coupled to the data lines and the scan lines; a digital data converter configured to calculate a panel load utilizing digital video data, and to convert the digital video data such that peak luminance of the pixels have a maximum value when the panel load is equal to or less than a limit value; a data driver configured to convert digital conversion data, which has been converted by the digital data converter, into data voltages, and to supply the data voltages to the data lines; and a scan driver configured to provide scan signals to the scan lines.