Display Driving Circuit Stabilizes Channel Amplifiers
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Solution Overview
Problem
As display panel sizes and resolutions increase, existing display driving circuits face challenges in reducing power consumption, particularly in ensuring sufficient stabilization time for channel amplifiers during horizontal periods, leading to inefficiencies and potential image quality deterioration.
Innovation Solution
The proposed solution involves a display driving circuit with a data comparator that compares pixel data across adjacent lines, determining the operation states of channel amplifiers based on comparison results, and adjusting their enablement before the next horizontal period starts, thereby reducing static current and power consumption while ensuring stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If channel amplifiers are turned off to reduce power consumption, then power consumption is reduced, but stabilization time may be insufficient leading to image quality deterioration
Solution Approach 1:
The patent applies preliminary action by comparing pixel data of adjacent lines in advance during the current horizontal period to determine the operation states of channel amplifiers for the next horizontal period. This allows the system to prepare amplifier enablement decisions before the next horizontal period begins, ensuring sufficient stabilization time while optimizing power consumption based on predicted needs.
2Reliability
If channel amplifiers are enabled early to ensure stabilization time, then image quality is maintained, but power consumption increases due to extended operation periods
Solution Approach 1:
The patent implements dynamics by making the operation state of channel amplifiers adaptive rather than static. The system dynamically adjusts whether amplifiers are enabled or disabled in each horizontal period based on real-time comparison of pixel data from adjacent lines, allowing optimization of power consumption while maintaining image quality only when necessary.
3Loss of energy
If pixel data comparison is performed for all adjacent lines, then optimal power consumption is achieved, but processing time and complexity increase
Solution Approach 1:
The patent applies partial action by performing pixel data comparison selectively rather than exhaustively for all cases. The system compares pixel data of adjacent lines and uses the comparison results to determine amplifier operation states, implementing power optimization only where data patterns indicate opportunity, thus balancing power savings with processing overhead.
Data Source
AI summary
A display driving circuit and a display device including the display driving circuit are disclosed. The display driving circuit includes: a data driver including a first channel amplifier operating based on first pixel data and a second channel amplifier operating based on second pixel data and configured to drive first and second pixels of a display panel based on the first pixel data and the second pixel data of a first line; and a data comparator configured to compare the first pixel data with the second pixel data and determine operation states of the first channel amplifier and the second channel amplifier on a comparison result, before a first horizontal period in which the first pixel and the second pixel are driven.