Display Source Driver Shift Register Segmentation
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Solution Overview
Problem
Conventional source driving circuits for display panels require additional connecting wires to adjust for different horizontal resolutions, leading to increased circuit layout area and reduced flexibility, as they need to configure dummy channels to support various display panel resolutions.
Innovation Solution
A driving system with a timing controller that generates two start pulses, allowing the source driving circuit to classify shift registers into series and transmit these pulses at specific times to optimize the use of output channels, eliminating the need for physical connecting wires between shift registers and enabling adaptive support for multiple display panel resolutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional connecting wires are disposed between different shift registers to configure dummy channels, then the source driving circuit can support different horizontal resolutions, but the circuit layout area increases and layout flexibility decreases
Solution Approach 1:
The shift register circuit is divided into multiple independent shift registers that can be selectively activated. Instead of using physical connecting wires to skip shift registers, the invention segments the circuit into functional units that can be independently controlled through signal timing, reducing the need for additional physical connections.
Solution Approach 2:
The invention dynamically controls the activation and deactivation of shift registers through timing signals. By adjusting the timing of start pulses and clock signals, the system can dynamically configure which shift registers are active, allowing adaptation to different horizontal resolutions without physical reconfiguration or additional wires.
2Adaptability or versatility
If additional connecting wires are disposed between different shift registers to configure dummy channels, then the source driving circuit can support different horizontal resolutions, but the layout flexibility is reduced
Solution Approach 1:
The shift register circuit is designed with universal functionality to support multiple horizontal resolutions. The same physical circuit structure can be configured for different resolutions by controlling which shift registers are activated through timing signals, making the circuit multi-functional without requiring additional physical connections for each resolution mode.
3Productivity
If dummy channels are configured to match the display panel resolution, then the output channels are efficiently utilized, but additional connecting wires are required increasing circuit complexity
Solution Approach 1:
The invention changes the operational parameters of the shift register circuit by controlling the timing and activation of different shift registers. By adjusting which shift registers are active and when they are clocked, the system can match the number of active output channels to the display panel resolution, achieving efficient channel utilization through parameter control rather than physical reconfiguration.
Data Source
AI summary
The driving system for driving a display panel includes a timing controller and a source driving circuit. The source driving circuit includes a plurality of output channels and a plurality of shift registers respectively corresponding to the output channels. The plurality of shift registers are classified into a plurality of shift register series, among which a first shift register series includes a first shift register being as one end and a second shift register being as the other end, and a second shift register series includes a third shift register being as one end and a fourth shift register being as the other end. The timing controller is connected to the first shift register, the second shift register, the third shift register, and the fourth shift register, and transmits a first start pulse to the first shift register and a second start pulse to the third shift register.