Charge Sharing Time Adjustment for Display Panel Power Efficiency
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Solution Overview
Problem
Existing display panel technologies face challenges in reducing power consumption, as uniform charge sharing times across pixels can lead to insufficient voltage levels, resulting in suboptimal power efficiency, especially in large LCD TVs with increasing size and power consumption demands.
Innovation Solution
A method to dynamically adjust charge sharing times for each pixel group based on its location relative to the source driver, with longer times for closer pixel groups and shorter times for farther ones, allowing for flexible power management and adaptation to different panel loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uniform charge sharing time is applied to all pixels, then device complexity is reduced, but power consumption increases and voltage levels become insufficient for some pixels
Solution Approach 1:
The pixel array is divided into multiple pixel groups (e.g., first pixel group, second pixel group, third pixel group) along the row direction. Each pixel group is assigned a different charge sharing time value, allowing optimized power consumption for each segment based on its distance from the source driver, rather than applying a uniform time to all pixels.
Solution Approach 2:
Different charge sharing time values are applied to different spatial locations of the pixel array. Pixels closer to the source driver (first pixel group) receive longer charge sharing times, while pixels farther away (second and third pixel groups) receive progressively shorter times, matching the local electrical characteristics and reducing overall power consumption.
2Reliability
If charge sharing time is increased for pixels far from source driver, then voltage level sufficiency is improved, but power consumption increases
Solution Approach 1:
The charge sharing time parameter is varied across different pixel groups based on their position relative to the source driver. By changing this temporal parameter spatially, the patent ensures sufficient voltage levels for distant pixels without uniformly increasing power consumption across the entire display panel.
3Use of energy by moving object
If charge sharing time is decreased for pixels close to source driver, then power consumption is reduced, but voltage level may become excessive
Solution Approach 1:
The patent applies different charge sharing time values to different pixel groups based on their local electrical characteristics. Pixels closer to the source driver are assigned shorter charge sharing times to prevent excessive voltage, while maintaining adequate voltage for pixels farther away, thus achieving local optimization of both power consumption and voltage control.
Data Source
AI summary
The present disclosure provides methods, apparatuses, and non-transitory computer-readable mediums for setting charge sharing times, which may be adaptable to a display panel. In some embodiments, the apparatus includes a pixel array and a source driver configured to drive each column of the pixel array. In some embodiments, a setting method of charge sharing times includes grouping a plurality of pixels of a pixel array in a row direction to form a plurality of pixel groups. The setting method further includes setting a charge sharing time of each pixel group of the plurality of pixel groups according to a quantity of pixel groups in the plurality of pixel groups. A charge sharing time of a pixel group located closest to a source driver in the pixel array is greater than a charge sharing time of a pixel group located farthest from the source driver in the pixel array.