Semiconductor LED Display Matrix With Reversible Pixel Polarity
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Solution Overview
Problem
Current display devices using semiconductor light emitting elements face challenges in manufacturing due to the need for miniaturization, high initial development costs, and increased complexity with a large number of drivers required for pixel columns and rows, making it difficult to produce flexible and thin displays efficiently.
Innovation Solution
A display device configuration using a base substrate with row and column drivers, where semiconductor light emitting elements are connected in different polar directions, and a modular interposer is used to reduce the number of IC chips and drivers, enabling passive matrix driving with simplified manufacturing and improved yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the size of semiconductor light emitting elements is miniaturized to increase production quantity, then productivity is improved, but device complexity increases making manufacturing difficult
Solution Approach 1:
The invention divides the driving substrate into multiple independent driving substrate modules, each capable of driving a specific region of pixels. This segmentation allows for standardized mass production of smaller modules rather than attempting to manufacture one large complex substrate, thereby resolving the contradiction between miniaturization for productivity and manufacturing complexity.
Solution Approach 2:
Multiple driving substrate modules are arranged in a matrix pattern and connected through signal lines that extend across the substrate. The modules are nested within a larger display structure, allowing individual modules to be manufactured independently and then assembled into the complete display device, reducing overall manufacturing complexity while maintaining high productivity.
2Area of stationary object
If a large screen with many pixel columns and rows is implemented, then area is improved, but the number of drivers increases making the system more complex
Solution Approach 1:
The display screen is divided into multiple regions, with each driving substrate module responsible for driving pixels in a specific region. Instead of using a single large number of drivers for the entire screen, the system uses multiple smaller sets of drivers distributed across modules, reducing the complexity of any single driver unit while maintaining large display area.
Solution Approach 2:
The invention arranges driving substrate modules in a two-dimensional matrix pattern rather than using a linear array of drivers. This spatial distribution across multiple dimensions allows the system to cover large screen areas while keeping each driver unit manageable in size and complexity.
3Reliability
If multiple IC chips are used to drive pixels, then reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
Multiple driving substrate modules are integrated into a unified structure with shared signal lines and coordinated control. By merging the functions of multiple IC chips into a coordinated modular system, the invention maintains the reliability benefits of multiple drivers while reducing overall device complexity through standardized interfaces and unified architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration simplifies the manufacturing process, reduces the number of drivers needed, and enhances process yield, allowing for the production of flexible and thin displays with improved image quality and responsiveness to various display products.
Implementation Method 1
LED (light emitting diode), which is a well-known semiconductor light-emitting element that converts electric current into light
Data Source
AI summary
The present disclosure relates to a display apparatus using a semiconductor light-emitting device, the display apparatus comprising: a base substrate; a row driver which provides 3-state first signals including a high, a ground, and a low signal; a column driver which provides 2-state second signals including a high and a low signal; and a plurality of semiconductor light-emitting devices provided on the base substrate, wherein the plurality of semiconductor light-emitting devices include a first semiconductor light-emitting device and a second semiconductor light-emitting device which are connected to the row driver and the column driver in different pole directions.