Integrated Display Substrate Reducing Data Lines
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Solution Overview
Problem
Existing flat panel display devices require a large number of data signal lines and integrated circuits, which increases weight, size, and processing complexity, limiting their efficiency and cost-effectiveness.
Innovation Solution
A display apparatus with a 2×2 matrix arrangement of sub-pixels displaying red, green, blue, and white colors, where the scan and data signal lines are formed on the same substrate, reducing the number of data lines and integrated circuits by utilizing a built-in gate driving circuit and data driving circuit integrated onto the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional LCD devices use separate gate driving circuits and data driving circuits with multiple data signal lines, then each sub-pixel can be controlled independently, but the number of data lines and integrated circuits increases, leading to increased weight, size, and processing complexity
Solution Approach 1:
The patent combines the gate driving circuit and data driving circuit into a single integrated circuit formed on the same substrate. This merging reduces the number of separate integrated circuits from multiple to one, while still maintaining the capability to independently control each sub-pixel through the integrated circuit's internal structure that includes scan signal line driving units and data signal line driving units.
Solution Approach 2:
The integrated circuit performs multiple functions by incorporating both gate driving functionality (through scan signal line driving units) and data driving functionality (through data signal line driving units) within a single device. This multi-functional design eliminates the need for separate dedicated circuits for each function, reducing overall system complexity.
2Illumination intensity
If multiple data signal lines are used to supply data signals to each sub-pixel, then complete color display is achieved, but the number of data lines increases, increasing weight and size
Solution Approach 1:
The patent merges the functionality of multiple data signal lines into a reduced number of data signal lines by implementing sharing mechanisms within the integrated circuit. The data signal line driving units are designed to efficiently manage data signal distribution, allowing complete color display capability to be maintained while reducing the physical number of data lines and associated weight.
3Measurement precision
If multiple integrated circuits are used for data driving, then data signal control is precise, but processing complexity and cost increase
Solution Approach 1:
The patent combines multiple data driving integrated circuits into a single integrated circuit that maintains precise data signal control through its internal architecture. The integrated circuit includes data signal line driving units that can precisely control data signals with the same level of accuracy as multiple separate circuits would provide, but with reduced processing complexity and lower cost.
4Reliability
If traditional separate driving circuits are used, then signal transmission is reliable, but the number of components increases, increasing manufacturing cost
Solution Approach 1:
The patent merges separate driving circuits into a single integrated circuit formed on the same substrate, reducing the total number of components that need to be manufactured, assembled, and connected. This integration maintains signal transmission reliability through proper internal circuit design while significantly reducing manufacturing complexity and cost associated with handling multiple separate circuits.
Solution Approach 2:
The integrated circuit embeds multiple functional units (scan signal line driving units and data signal line driving units) within a single circuit structure, similar to nested dolls. This nesting approach allows multiple functional components to be housed within one integrated circuit, reducing the number of external components needed and lowering manufacturing costs while maintaining functional reliability.
Data Source
AI summary
A display apparatus is disclosed. The display apparatus includes: a plurality of scan signal lines and a plurality of data signal lines that cross each other; a plurality of pixels formed at each crossing of the scan signal lines and the data signal lines, wherein each of the pixels includes sub-pixels that display red color, green color, blue color and white color in response to a scan signal from the scan signal lines and a data signal from the data signal lines, wherein the sub-pixels are arranged in a 2×2 matrix; a scan signal driving circuit including a plurality of stages that supplies the scan signal to the scan signal lines; and a data signal driving circuit that supplies the data signal to the data signal lines, wherein the scan signal driving circuit, the pixels, the scan signal lines and the data signal lines are formed on a same substrate.