Dual Drive Chip Display Module for Large LCD Signal Decay
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Solution Overview
Problem
Large-scale liquid crystal display screens face issues with charge signal decay, leading to unbalanced pixel display and prolonged charge duration, resulting in poor display results due to the increased loading on single drive chips.
Innovation Solution
A display module with two drive chips and a flexible circuit board system, where the first and second drive chips are installed on a display panel with seamlessly connected display regions, receiving synchronization signals from a system main board to drive image content synchronously, reducing the loading on individual drive chips and shortening pixel charge time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single drive chip is used to drive the display region, then the device complexity is reduced, but the charge signal decay increases and display uniformity deteriorates
Solution Approach 1:
The display region is divided into first and second display regions, each driven by a separate drive chip. This segmentation reduces the driving distance for each chip, minimizing charge signal decay and ensuring uniform display quality across the entire screen while maintaining manageable system complexity.
2Area of stationary object
If the screen scale is increased, then the display area is enlarged, but the charge signal decay accelerates and display quality deteriorates
Solution Approach 1:
The enlarged display area is segmented into multiple regions, each with its own drive chip. This allows the large screen to maintain high display quality by ensuring that no single chip has to drive signals across the entire large area, thus preventing excessive charge decay.
Solution Approach 2:
Instead of increasing the driving distance in one dimension, the solution adds another dimension by using multiple drive chips working in parallel. This dimensional approach allows the system to handle large display areas without compromising signal integrity.
3Measurement precision
If the resolution is increased, then the display detail is improved, but the loading on drive chip increases and charge accomplishment duration is prolonged
Solution Approach 1:
The high-resolution display is divided into multiple regions, each handled by a dedicated drive chip. This segmentation distributes the loading across multiple chips, reducing the number of pixels each chip must drive and thereby shortening the charge accomplishment duration while maintaining overall high resolution.
Data Source
AI summary
The present application discloses a display module comprising a flexible circuit board, a first drive chip, a second drive chip and a display panel, and the display panel comprises a first display region and a second display region which are seamlessly connected, and the first drive chip and the second drive chip are installed on the display panel, and the flexible circuit board is electrically connected to a system main board, the first drive chip and the second drive chip, and the first synchronization signal and the second synchronization signal control the first display region and the second display region to synchronously show images. The present application further publishes a liquid crystal display screen. The first drive chip and the second drive chip respectively drive the first display region and the second display region to synchronously output images.