Display Device Sorting Gate Lines by Gray Scale Voltage
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Solution Overview
Problem
Liquid crystal display devices experience high power consumption due to voltage switching frequency, especially when displaying overload images, which can lead to excessive heat and potential damage to the driving chip.
Innovation Solution
A display method that reorders the scanning of gate lines based on gray scale voltage levels, reducing voltage switching frequency by sorting image data according to gray scale voltage from high to low, and determining if an image is an overload image by assessing the ratio of sub-pixels with significant gray-scale value differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If progressive scanning is used to display images, then the display device can show complete images frame by frame, but the voltage switching frequency increases leading to high power consumption
Solution Approach 1:
The patent applies preliminary action by sorting row image data according to gray scale voltage before scanning. The controller sorts the row image data in ascending or descending order of gray scale voltage and generates corresponding sorting labels. This preliminary sorting allows the display device to scan rows with similar voltage levels together, reducing voltage switching frequency and power consumption while still displaying complete images frame by frame.
2Manufacturing precision
If voltage switching frequency is increased to display overload images, then the image detail is improved, but the power consumption increases excessively causing heat and potential chip damage
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the scanning order based on gray scale voltage parameters. Instead of fixed progressive scanning, the controller changes the scanning sequence to match the sorted order of gray scale voltages. This parameter adjustment reduces voltage switching frequency when displaying overload images, thereby reducing power consumption and preventing heat-related damage while preserving image detail quality.
Data Source
AI summary
The present application discloses a display method and a display device, the display method includes analyzing and acquiring the gray scale voltage corresponding to the row image data in the image data by receiving the image data of the image to be displayed, sorting the row image data according to the gray scale voltage and generating the sorting label, sequentially scanning the display device by the sorting label of the gate lines to display the image to be displayed. This method can reduce the voltage switching frequency, thereby reducing the power consumption of the display device.