LCD Pixel Layout Reduces Data Driver Chips
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Solution Overview
Problem
The high manufacturing cost and difficulty in integrating data driving circuit chips into liquid crystal displays (LCDs) necessitate a reduction in the number of data driving circuit chips used in LCDs.
Innovation Solution
The design incorporates a substrate with gate lines, data lines, thin film transistors, and pixel electrodes arranged in a matrix, where adjacent pixels in a column are connected to different data lines, and includes storage electrode lines that overlap with pixel electrodes, reducing the need for multiple data driving circuit chips by optimizing the layout and integration of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple data driving circuit chips are used to control data lines, then the data driving capability is sufficient, but the manufacturing cost increases and integration difficulty increases
Solution Approach 1:
The patent combines multiple data driving circuit functions into a single integrated chip that can control multiple data lines simultaneously. This merging approach reduces the total number of chips from multiple separate data driving circuit chips to one unified chip, thereby lowering manufacturing costs while maintaining sufficient data driving capability through the integrated design.
Solution Approach 2:
The integrated data driving circuit chip is designed with multi-functional capability to control multiple data lines (e.g., DL1-DL4) through a single chip. This universal design allows one chip to perform the functions that previously required multiple separate chips, reducing both cost and complexity while maintaining full data driving capability across all lines.
2Reliability
If multiple data driving circuit chips are mounted on the panel, then data line control is achieved, but the integration difficulty increases
Solution Approach 1:
By merging multiple data driving circuit functions into a single integrated chip, the patent reduces the number of components that need to be mounted and interconnected on the panel. This consolidation simplifies the integration process, reduces connection points, and lowers the overall device complexity while maintaining reliable control over all data lines through the unified chip architecture.
3Ease of manufacture
If data driving circuit chips are mounted on flexible circuit film, then integration is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent consolidates multiple data driving circuit chips into one integrated chip, which can then be mounted on the flexible circuit film as a single component. This merging reduces the total number of chips and mounting operations required, thereby reducing manufacturing costs while maintaining the integration benefit of using flexible circuit film for the data driving circuit.
Data Source
AI summary
A liquid crystal display includes a substrate, a plurality of gate lines formed on the substrate, a plurality of data lines intersecting the plurality of gate lines, a plurality of thin film transistors connected to the plurality of gate lines and the plurality of data lines, and a plurality of pixel electrodes connected to the plurality of thin film transistors and arranged in a matrix, wherein each of the pixel electrodes includes a first side parallel to each gate line and a second side being shorter than the first side, the second side being formed next to the first side, wherein the plurality of pixel electrodes that are adjacent to each other in a column direction are connected to different data lines from each other.