LCD Sub-Pixel Grouping for Driving Module Power Reduction
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Solution Overview
Problem
The three-gate technology used in LCD panels increases the operating frequency of the driving module, leading to higher power consumption and a risk of damaging the module, while also increasing the cost of the panel.
Innovation Solution
Grouping 2n rows of sub-pixels into two sub-pixel groups and alternating the driving sequence between odd and even rows or columns to reduce the frequency of data signal level jumps, thereby reducing the operating frequency and power consumption of the driving module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If three-gate technology is used to reduce LCD panel cost and increase data transmission speed, then charging time is shortened to 1/3 of original, but operating frequency of driving module increases three times leading to increased power consumption and risk of damaging the module
Solution Approach 1:
The patent divides the display panel into multiple virtual pixels by segmenting the sub-pixels into different groups (first sub-pixel group and second sub-pixel group). This segmentation allows the driving module to update only certain groups at different frequencies, thereby reducing the overall operating frequency and power consumption while maintaining the fast response benefits of three-gate technology in specific regions.
2Ease of manufacture
If three-gate technology is used to reduce LCD panel cost, then manufacturing efficiency is improved, but operating frequency of driving module increases leading to increased power consumption and potential module damage
Solution Approach 1:
The patent implements periodic action by updating different sub-pixel groups at different time intervals. The first sub-pixel group is updated at a higher frequency while the second sub-pixel group is updated at a lower frequency, creating a periodic update pattern that reduces the average operating frequency and power consumption, thereby improving module reliability and reducing damage risk while maintaining manufacturing efficiency.
3Adaptability or versatility
If gamma correction is applied to achieve wide viewing angle, then viewing angle is increased through diffuse reflection-like effect, but level jump frequencies of data signals are greatly increased leading to increased power consumption
Solution Approach 1:
The patent segments the sub-pixels into different groups that can be updated independently. By updating only certain sub-pixel groups at full resolution while others are updated at lower frequencies or with simplified data signals, the patent reduces the overall level jump frequency of data signals while maintaining the gamma correction benefits for wide viewing angle in the segmented regions.
Data Source
AI summary
The present application is a display panel driving method, a driving device and a display device. The method comprises: forming 2n rows of sub-pixels in a display panel into a sub-pixel group, and dividing the sub-pixel group into a first sub-pixel group and a second sub-pixel group using a grouping method. The display panel comprises pixel units arranged in an array; each pixel unit comprises sub-pixels of at least three colors, and the sub-pixels of each color comprises sub-pixels of a first type and sub-pixels of a second type; and the sub-pixels of the first type and the sub-pixels of the second type are arranged at intervals along the row direction and the column direction of the pixel unit arrangement, and the data signal levels of the two provided by a driving module thereof are different.