Display Mux Block Layout for Narrow Bezel and Lower Power
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Solution Overview
Problem
Existing display devices face challenges in integrating components efficiently while maintaining low power consumption, particularly in reducing the bezel size and optimizing data line connections.
Innovation Solution
The display device incorporates a mux block with output control transistors that selectively connect data lines, allowing for reduced power consumption and improved integration by alternating data voltage application through transistors, thereby optimizing the placement of data drivers and mux blocks to minimize bezel size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple output control transistors are used to selectively connect data lines, then data voltage application control is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent merges the functions of multiple output control transistors into a single shared transistor that can selectively connect different data lines to different data voltage sources. This single transistor replaces what would traditionally require multiple transistors, reducing device complexity while maintaining the adaptability to apply different data voltages to different data lines as needed.
Solution Approach 2:
The single output control transistor is designed to perform multiple functions by selectively connecting different data lines to different data voltage sources based on control signals. This universal transistor can serve the role of multiple specialized transistors would traditionally be needed, reducing overall device complexity while maintaining full functionality.
2Reliability
If data driver and mux block are placed close to display panel, then signal transmission is improved, but bezel size increases
Solution Approach 1:
The patent positions the data driver and mux block in the vertical dimension (second positioning direction) rather than horizontally adjacent to the display panel. This vertical arrangement allows the components to be spaced apart in the horizontal direction, reducing the bezel width, while maintaining close proximity through vertical stacking or positioning, thereby preserving signal transmission quality.
3Reliability
If output control signal activation period is extended, then data voltage application reliability is improved, but power consumption increases
Solution Approach 1:
The output control transistor operates with periodic activation, turning on only during the activation period when data voltage application is needed and turning off during the inactivation period. By extending the activation period, the patent ensures reliable data voltage application, while the periodic nature of the operation (compared to continuous operation) helps manage power consumption by limiting the transistor's active state to only when necessary.
Data Source
AI summary
A display device includes a display panel including a plurality of pixels, a gate driver which outputs a gate signal to the display panel, a data driver which generates a data voltage applied to the display panel and a mux block which outputs the data voltage to the display panel. The mux block includes an output control transistor including a control electrode receiving an output control signal, a first electrode connected to a first data line and a second electrode connected to a second data line.