Multiplexing Circuit Dynamic Transistor Channel Ratio
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Solution Overview
Problem
Existing display technologies face challenges in dynamically adjusting frame rates, leading to power consumption issues and flickering at low frame rates, as the width-to-length ratio of transistor channels in multiplexing circuits is fixed, limiting adaptability to different display scenarios.
Innovation Solution
The proposed multiplexing circuit incorporates multiple switching units with controllable switches, allowing for simultaneous or selective activation of switches to optimize the width-to-length ratio of transistor channels, enabling flexible frame rate adjustments without causing low-frequency flickering and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the width to length ratio of transistor channel in multiplexing circuit is designed to be small for low frame rate display, then power consumption is reduced, but the display flickers at low frame rates
Solution Approach 1:
The patent implements dynamic adjustment of the width to length ratio of transistor channels in the multiplexing circuit based on the current frame rate. When frame rate changes (e.g., from 60Hz to 30Hz or 90Hz), the system dynamically reconfigures the transistor channel dimensions to optimize both power consumption and display stability for the specific frame rate being used, rather than using a fixed design
2Productivity
If the width to length ratio of transistor channel is changed to large design for high frame rate displaying, then high frame rate is achieved, but the low frame rate display flickers and consumes more power
Solution Approach 1:
The system dynamically adjusts transistor channel width to length ratio according to the required frame rate. For high frame rates (90Hz, 120Hz), larger ratios are used to ensure sufficient signal strength and smooth display. For low frame rates (30Hz), smaller ratios are used to minimize power consumption while maintaining acceptable display quality, eliminating the need to maintain large ratios continuously
3Productivity
If the width to length ratio of transistor channel is changed to large design for high frame rate displaying, then high frame rate is achieved, but the low frame rate display flickers
Solution Approach 1:
The patent implements dynamic reconfiguration of transistor channel dimensions based on operating conditions. When switching between different frame rates, the system adjusts the width to length ratio to match the specific requirements of each mode, ensuring stable display performance at both high and low frame rates without the flickering issues that occur with fixed large-ratio designs
4Adaptability or versatility
If fixed width to length ratio is used in multiplexing circuit, then device complexity is reduced, but adaptability to different display scenarios is limited
Solution Approach 1:
The patent introduces dynamic adjustability to the multiplexing circuit by enabling reconfiguration of transistor channel width to length ratios. This allows the same hardware circuit to adapt to different frame rate requirements (30Hz, 60Hz, 90Hz, 120Hz) and display scenarios, providing versatility without requiring multiple dedicated circuits for each frame rate
Solution Approach 2:
The system changes physical parameters (transistor channel width and length) based on operating conditions. By adjusting these geometric parameters dynamically, the circuit achieves different electrical characteristics suitable for various frame rates, transforming a fixed-parameter device into an adaptive one
Data Source
AI summary
A multiplexing circuit is provided. The multiplexing circuit includes a first multiplexing unit. The first multiplexing unit is configured to receive a signal at a first output end of a source driving circuit of a display and configured to transmit the signal to a pixel of the display. The first multiplexing unit includes a first switching unit configured to control transmitting of the signal to a first sub-pixel of a first pixel of the display. The first switching unit includes a first switch and a second switch. Both the first switch and the second switch are electrically connected between the first output end and the first sub-pixel of the first pixel. The first switch and the second switch are configured to simultaneously turn on or turn on only one to transmit the signal to the first sub-pixel of the first pixel.