Display Circuit Device for Seamless Color Monochrome Mode Switching
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Solution Overview
Problem
Existing display technologies require significant modifications and data rate changes when switching between color and monochrome display modes, necessitating additional serial-parallel conversion circuits and increased LVDS communication speed in monochrome mode.
Innovation Solution
A circuit device with an interface unit, data processing unit, and drive unit that processes and drives display data across multiple color component channels, allowing for seamless switching between color and monochrome modes without altering the data transfer rate, using a single circuit device for both configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data rate is tripled for monochrome display mode, then monochrome display can be achieved using same circuit device, but LVDS communication speed must be increased and control complexity increases
Solution Approach 1:
The patent segments the pixel structure into three subpixels (R, G, B) that can be independently controlled. In monochrome mode, each subpixel receives the same data, effectively tripling the data throughput without changing the physical communication interface speed. This segmentation allows the system to achieve monochrome display capability while maintaining compatibility with the existing LVDS communication rate.
Solution Approach 2:
The patent implements dynamic mode switching capability where the circuit device can adaptively change between color and monochrome display modes. The source driver dynamically adjusts its operation to drive either three subpixels per pixel in color mode or three pixels per data channel in monochrome mode, enabling versatility without requiring fixed hardware configurations or speed changes.
2Adaptability or versatility
If serial-parallel conversion circuit is added for monochrome display, then data can be processed correctly, but device complexity increases
Solution Approach 1:
The source driver is designed with universal functionality to handle both color and monochrome display modes using the same hardware architecture. The driver can interpret incoming data streams differently based on the selected mode: in color mode it processes data for three subpixels, while in monochrome mode it replicates the data to three output channels. This multi-functionality eliminates the need for separate serial-parallel conversion circuits for monochrome operation.
Solution Approach 2:
Instead of adding complex serial-parallel conversion circuitry to handle monochrome data, the patent inverts the approach by having the source driver directly output the same data to multiple channels. Rather than converting serial data to parallel through additional circuits, the system uses the existing parallel output structure to broadcast the monochrome signal to all three subpixel channels, simplifying the overall circuit design.
Data Source
AI summary
A circuit device includes an interface unit that receives pieces of display data RD, GD, and BD, a data processing unit that performs data processing on the pieces of display data RD, GD, and BD, and a drive unit that drives a display panel based on display data from the data processing unit. The data processing unit performs data processing in which the display data RD that has been input to a first color component input channel of the interface unit is set to a first color component channel, a second color component channel, and a third color component channel of the same pixel. The drive unit drives the display panel based on the display data set in the first color component channel, the second color component channel, and the third color component channel.