Data Driver Fan-Out Line Remapping for Display Power and Space
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Solution Overview
Problem
Conventional display devices require multiple data lines to connect to sub-pixels for different colors, leading to increased power consumption and dead space in the display panel due to inefficient data line arrangements.
Innovation Solution
A data driver that applies data voltages to fan-out lines connected to data lines, allowing for a more efficient arrangement where one data line is connected to sub-pixels for one color, reducing power consumption and dead space by remapping input image data based on the structure of pixels and data lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple data lines are used to connect to sub-pixels for different colors, then display coverage and color rendering are improved, but power consumption increases and dead space in the display panel increases
Solution Approach 1:
The patent combines multiple data lines (first color data line, second color data line, third color data line) into a single shared data line structure. The data driver selectively activates specific data lines based on the pixel structure and color requirements, merging the functions of multiple data lines while reducing the total number of physical data lines needed, thereby reducing power consumption and dead space while maintaining display coverage
Solution Approach 2:
The shared data line structure serves multiple functions by being selectively connected to different sub-pixels (first sub-pixels, second sub-pixels, third sub-pixels) depending on the display region and color requirements. The data driver dynamically configures the data line connections to serve different color channels and pixel types, making the data line structure universal and multi-functional
2Area of stationary object
If multiple data lines are used to connect to sub-pixels for different colors, then display coverage and color rendering are improved, but dead space in the display panel increases
Solution Approach 1:
The patent merges multiple data line functions into a shared data line structure, reducing the total number of separate data lines required. This consolidation eliminates the dead space that would otherwise be occupied by multiple separate data line traces and their associated routing structures, while maintaining the ability to drive all sub-pixel types
Solution Approach 2:
The patent utilizes fan-out lines that extend in different spatial directions (first direction, second direction) from the data driver to reach different display regions. This dimensional approach allows efficient routing of data signals to various sub-pixel groups without requiring additional parallel data lines, thereby reducing dead space while maintaining comprehensive coverage
3Use of energy by moving object
If data lines are efficiently arranged to reduce dead space, then power consumption and dead space are reduced, but the complexity of data line arrangement and pixel structure matching increases
Solution Approach 1:
The data driver implements dynamic configuration of data line connections based on the pixel structure and display region requirements. The system adapts the data line activation pattern according to the specific arrangement of first sub-pixels, second sub-pixels, and third sub-pixels, allowing efficient power usage without requiring complex static routing designs
Solution Approach 2:
The patent changes the operational parameters of the data driver to selectively activate different data lines (first color data line, second color data line, third color data line) based on the pixel structure and color requirements. By dynamically adjusting which data lines are active and how they are connected through fan-out lines, the system achieves efficient power consumption without complex physical arrangements
Data Source
AI summary
A display device includes first data lines including first color data lines connected to first sub-pixels, second color data lines connected to second sub-pixels, and third color data lines connected to third sub-pixels, and fan out lines including first fan out lines, second fan out lines alternately arranged with the first fan out lines in a peripheral region, and third fan out lines, a data driver outputting data voltages to the first fan out lines and the second fan out lines connected to the first data lines in a first arrangement according to the first arrangement, and output the data voltages to the third fan out lines connected to the first data lines in a second arrangement according to the second arrangement, and a timing controller remapping input image data based on the first arrangement.