Signal Controlling Device for Display Driving Synchronization
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Solution Overview
Problem
Ultra-high resolution display apparatuses face issues with image matching due to poor synchronization of scanning driving signals caused by differences in line resistances, leading to suboptimal image quality.
Innovation Solution
A signal controlling device that segments image data signals into two sets for even and odd-numbered column pixels, with a pixel array driver and data drivers synchronized through triggering signals to ensure simultaneous power supply to pixel units, addressing the synchronization issue and improving image matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If two chips are used to transmit data signals for ultra-high resolution display, then the data transmission capacity is improved, but the synchronization of scanning driving signals deteriorates due to line resistance differences
Solution Approach 1:
The pixel array is divided into two sets of column pixels (even-numbered and odd-numbered columns), with each set connected to a separate data driver chip. This segmentation allows independent data transmission channels while maintaining synchronized control through the shared scanning signal, resolving the contradiction between increased data capacity and signal synchronization.
2Productivity
If two sets of scanning driving signals are used to control pixel units, then the data signal charging capability is improved, but the time synchronization between signals deteriorates
Solution Approach 1:
Both data driver chips share a common scanning signal source and use the same pixel array driving signal to control the timing of data output. This merging of control signals ensures that both sets of pixel units are switched on and charged simultaneously, maintaining time synchronization while improving overall charging capability through parallel operation.
3Adaptability or versatility
If line resistance differences exist in the circuit, then the circuit design flexibility is improved, but the scanning signal synchronization deteriorates
Solution Approach 1:
A synchronization control mechanism is introduced as an intermediary between the scanning signal source and the two data driver chips. This intermediary ensures that both chips receive and respond to the scanning signal simultaneously, compensating for the effects of line resistance differences and maintaining synchronization despite circuit design flexibility.
Data Source
AI summary
The present disclosure relates to a display driving device, a display apparatus, a display driving method and a signal controlling device. The signal controlling device includes a scanning signal controlling device configured to output a scanning signal that initiates a scanning of a pixel array, and an image data segmenting device configured to receive the scanning signal and a data signal representing a frame of image from a data source, and to segment the data signal in response to the scanning signal to output a first set of image data signals and a second set of image data signals. The first set of image data signals comprises data information of a first set of column pixels in the frame of image and the second set of image data signals comprises data information of a second set of column pixels in the frame of image.