Array Substrate Data Line Segmentation for Fast Reset
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Solution Overview
Problem
Existing liquid crystal spatial light modulators face issues with low frame rate and poor display effect due to large IC load and slow charging speed during global pixel voltage reset in 3D holographic display systems.
Innovation Solution
An array substrate with a driving method that includes a reset stage where a first data line is connected to a second data line with different drive voltages, allowing for rapid reset, and a display stage where the first data line is disconnected to enable progressive scanning and charging of pixel electrodes, reducing IC load and charging time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If global pixel voltage reset is performed in existing liquid crystal spatial light modulators, then pixel electrodes can be reset to a reference voltage, but the IC load becomes large and charging speed becomes slow
Solution Approach 1:
The patent divides the data lines into multiple groups, where each group contains multiple data lines that are electrically connected to each other during the reset stage. This segmentation allows the reset operation to be performed in parallel across multiple data line groups, significantly reducing the IC load and charging time while maintaining reliable pixel voltage reset.
2Speed
If data lines are electrically connected during reset stage, then charging speed increases, but the display effect becomes poor
Solution Approach 1:
The patent dynamically switches the electrical connection state of data lines based on the operating stage. During the reset stage, data lines in the same group are electrically connected to enable fast charging. During the display stage, the electrical connection is turned off to prevent interference between data lines and ensure good display effect. This dynamic switching resolves the contradiction between charging speed and display quality.
3Loss of time
If multiple data lines are electrically connected in the same group, then reset time is reduced, but the complexity of data line arrangement increases
Solution Approach 1:
The patent segments data lines into multiple groups based on their spatial arrangement in the display array. By organizing data lines into groups that are electrically connected during reset, the patent reduces reset time while maintaining a relatively simple and systematic data line arrangement structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach accelerates the reset process, improving frame rates and display efficiency by reducing the load on the driver chip and enabling faster charging of pixel electrodes.
Implementation Method 1
At the reset stage, the first data line is configured to be electrically connected to the second data line
Implementation Method 2
the plurality of data lines are configured to charge connected pixel electrodes
Data Source
AI summary
An array substrate includes pixel electrodes arranged in an array, a plurality of scan lines extending along the row direction of the array and arranged along the column direction of the array and a plurality of data lines extending along the column direction and arranged along the row direction. One group of data lines includes a first data line and a second data line. The loaded drive voltage of the first data line and the loaded drive voltage of the second data line are different in the same frame. The driving process of one frame includes a reset stage and a display stage. At the reset stage, the first data line is connected to the second data line. At the display stage, the first data line is disconnected from the second data line.