Display Assembly Driver Channel Matching for Signal Stability
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Solution Overview
Problem
Current stacked screen display technologies face issues with signal transmission due to suspended output channels in driver chips, leading to signal radiation and oscillation, which affects the display effect and increases costs by wasting output channels and requiring more driver chips.
Innovation Solution
A display assembly with a dimming array and pixel array driven by separate driver chips, where the number of output channels in the first driver chip matches the dimming units, and the second driver chip matches the sub-pixels, ensuring all output channels are utilized and reducing signal radiation by connecting each channel directly to its corresponding dimming or sub-pixel units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate driver chips are used for dimming array and pixel array with matched output channels, then signal transmission stability is improved, but device complexity increases
Solution Approach 1:
The patent divides the display system into two independent driving modules: a first driver chip for the dimming array and a second driver chip for the pixel array. This segmentation allows each driver chip to have a precisely matched number of output channels to its corresponding array, eliminating suspended channels and preventing signal radiation and oscillation, thereby improving signal transmission stability.
2Loss of substance
If output channels are fully utilized without suspension, then cost is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent changes the parameter of output channel quantity for both driver chips to match the actual needs of the dimming array and pixel array. By setting the number of output channels equal to the number of columns in each array respectively, all channels are fully utilized without suspension, reducing waste while the matching design simplifies the precision requirements for channel allocation.
3Stability of the object's composition
If each output channel connects to corresponding units directly, then signal oscillation is prevented, but connection complexity increases
Solution Approach 1:
The patent segments the connection structure into two independent sets: one set connecting the first driver chip's output channels to the dimming array columns, and another set connecting the second driver chip's output channels to the pixel array columns. This segmented connection approach ensures direct correspondence between channels and units, preventing signal oscillation while organizing connections in a systematic manner.
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 configuration improves the display effect by preventing signal oscillation, reduces the number of driver chips needed, and lowers costs by fully utilizing output channels, enhancing the efficiency and quality of signal transmission in medium-sized and large-sized stacked screen display products.
Implementation Method 1
A light transmittance of each dimming unit in the dimming array is controlled by controlling a rotation angle of liquid crystals in the dimming unit
Data Source
AI summary
A display assembly, a display device and a driving method for the display assembly are provided. The display assembly includes: a dimming array (10) and a pixel array (20) stacked together; wherein the dimming array (10) includes a plurality of dimming units (101) arranged in an array; the pixel array (20) includes a plurality of pixel units (201) arranged in an array; each dimming unit (101) corresponds to at least one pixel unit (201), and different dimming units (101) correspond to different pixel units (201), respectively. The display assembly further includes: a first driver chip (102) configured to drive the dimming array (10). The number of output channels of the first driver chip (102) is equal to the number of columns of dimming units (101) in the dimming array (10), and each output channel of the first driver chip (102) is connected to one column of dimming units (101).