Display Device Independent Power Source Segmentation
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Solution Overview
Problem
Display devices face challenges in reducing power consumption, particularly due to heat loss, which existing technologies have not adequately addressed.
Innovation Solution
The display device incorporates a buffer power generator that adjusts the voltage of independent high and low voltage power sources based on grayscale values for each pixel, minimizing heat loss by optimizing the voltage differences between the power sources and data voltages, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed voltage power sources are used for all amplifiers, then device complexity is reduced, but power consumption increases due to heat loss
Solution Approach 1:
The power source system is segmented into multiple independent low voltage power sources (VSS1, VSS2, VSS3, VSS4) and high voltage power sources (VDD1, VDD2, VDD3, VDD4), each dedicated to specific amplifiers. This segmentation allows each power source to be optimized independently for its associated amplifier's voltage swing requirements, reducing overall power consumption and heat loss while maintaining manageable device complexity through modular organization.
Solution Approach 2:
The patent implements dynamic voltage swing optimization by allowing each amplifier to operate with optimized voltage ranges determined by its dedicated power sources. The buffer power generators dynamically adjust voltage levels based on grayscale values and pixel requirements, enabling adaptive power consumption that reduces heat loss while maintaining display performance.
2Loss of energy
If independent power sources are used for each amplifier, then power consumption is reduced by minimizing heat loss, but device complexity increases
Solution Approach 1:
The patent merges the functionality of multiple power sources into integrated buffer power generators that can serve multiple amplifiers. The buffer power generators combine voltage regulation, grayscale conversion, and power distribution functions, reducing the overall complexity of managing independent power sources while maintaining the benefits of optimized voltage swings for each amplifier.
Solution Approach 2:
The buffer power generators are designed with multi-functionality, serving as both voltage regulators and grayscale converters while also functioning as power distribution nodes. This universal design reduces the need for separate dedicated components for each amplifier, thereby reducing device complexity while maintaining independent power source benefits.
3Use of energy by moving object
If optimized voltage swings are implemented for each amplifier, then power consumption is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent implements parameter changes by allowing voltage swing parameters to be optimized for each amplifier based on its specific requirements. The buffer power generators adjust voltage levels, current parameters, and timing characteristics to match each amplifier's optimal operating conditions, reducing power consumption while using standard manufacturing processes that can accommodate these parameter variations.
Data Source
AI summary
A display device includes a first amplifier and second data amplifier connected to a first data line and second data line, to a first high voltage power source and second high voltage power source and to a first low voltage power source and second low voltage power source, respectively, a first pixel and second pixel each having a data input terminal connected to the first data line and second data line, respectively. The first high voltage power source and the first low voltage power source determine an upper limit and a lower limit of an output voltage of the first amplifier, respectively, the second high voltage power source and the second low voltage power source determine an upper limit and a lower limit of an output voltage of the second amplifier, respectively, and the first low voltage power source and second low voltage power source are independent power sources.