Timing Controllers for Display Data Loss Prevention
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Solution Overview
Problem
High-resolution displays with alternately connected pixels and adjacent data lines experience data loss at the boundary between adjacent blocks due to the lack of efficient data communication and alignment between timing controllers.
Innovation Solution
A display device comprising a display panel with multiple timing controllers, where a second timing controller includes a memory for storing image data on a per-line basis, a transfer signal generating unit to create pulsed data transfer signals, and a data communication unit for rearranging and communicating image data with an adjacent first timing controller to prevent data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple timing controllers are used to drive high-resolution displays, then driving speed and display resolution are improved, but data loss occurs at block boundaries due to lack of data communication between controllers
Solution Approach 1:
The patent introduces a data communication unit as an intermediary mechanism between adjacent timing controllers. This unit enables the transfer of image data from one timing controller to another, ensuring that pixels at block boundaries receive correct data from the appropriate timing controller, thereby preventing data loss while maintaining high-speed driving capability
Solution Approach 2:
The display panel is divided into multiple blocks, each driven by a separate timing controller. This segmentation allows independent high-speed driving of each block while the data communication unit bridges the segments to prevent data loss at boundaries, resolving the contradiction between segmentation benefits and boundary data integrity
2Productivity
If pixels are alternately connected with adjacent data lines, then display efficiency is improved, but data loss occurs at block boundaries between adjacent blocks
Solution Approach 1:
The data communication unit acts as a mediator that transfers image data between timing controllers. When pixels are alternately connected across block boundaries, this intermediary ensures that the correct image data reaches the appropriate timing controller, preventing data loss while maintaining the efficiency benefits of alternate connection
Solution Approach 2:
The patent implements preliminary data transfer between timing controllers before the display refresh cycle completes. By preparing and transferring image data in advance through the data communication unit, the system ensures that boundary pixels receive correct data without disrupting the alternate connection driving scheme
Data Source
AI summary
A display device includes a display panel, a first timing controller, and a second timing controller. The display panel includes a first block and a second block adjacent to the first block, with a data line positioned between the first block and the second block. The first block includes a first column of pixels, and the second block includes a second column of pixels. The first and second columns of pixels are alternately connected to the data line. The first timing controller is configured to receive first image data corresponding to the first block. A second timing controller is configured to receive second image data corresponding to the second block. The first timing controller is configured to transfer at least part of the first mage data to the second timing controller.