Micro-pixel Controller Segmentation for Thin Display Modules
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Solution Overview
Problem
Existing display apparatuses, such as LCDs, face limitations in reducing structural complexity and achieving thin thickness due to the requirement of backlight units and liquid crystal layers, whereas self-emissive displays like micro-LEDs offer design freedom and high contrast but require complex circuitry for pixel control.
Innovation Solution
A display module with a thin film transistor circuit configured as a separate chip to drive inorganic light emitting devices, allowing for easier circuit testing and replacement, and featuring micro-pixel controllers arranged in specific periphery areas to control the LEDs, simplifying the manufacturing process and reducing structural complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a backlight unit and liquid crystal layer are used in LCD displays, then light can be supplied and controlled, but structural complexity increases and thin thickness cannot be achieved
Solution Approach 1:
The patent extracts and removes the backlight unit and liquid crystal layer from the display structure, replacing them with self-emissive micro-LED elements that generate their own light. This extraction eliminates the need for complex light supply and control mechanisms, directly reducing structural complexity and enabling thinner display designs.
Solution Approach 2:
The patent replaces the mechanical and optical system of backlight units and liquid crystal switching with a solid-state micro-LED emission system. This substitution eliminates moving parts and complex optical paths, simplifying the overall structure while achieving the same light control function through electrical control of LED elements.
2Adaptability or versatility
If micro-LEDs are used for self-emissive display, then design freedom and high contrast are achieved, but complex circuitry is required for pixel control
Solution Approach 1:
The patent segments the control circuitry into separate driver ICs that are externally connected to the micro-LED array rather than being integrated within each pixel. This segmentation allows the display panel itself to remain simple while placing the complex control functions in separate, manageable circuit modules that can be independently designed and tested.
Solution Approach 2:
The patent introduces driver ICs as intermediary components between the control system and the micro-LED pixels. These driver ICs serve as mediators that handle the complex control signals and simplify the connection to the display panel, reducing the circuit complexity directly at the pixel level while maintaining design freedom.
3Volume of moving object
If circuit components are integrated within the display panel, then compact design is achieved, but circuit testing and replacement become difficult
Solution Approach 1:
The patent segments the circuit components into separate driver ICs that are externally connected to the display panel through standardized interfaces. This segmentation maintains compactness by keeping all components within the overall display assembly while enabling independent testing and replacement of the driver ICs without damaging the display panel itself.
Solution Approach 2:
The patent designs the circuit architecture with preliminary consideration for testing and replacement, creating modular driver ICs with standardized connections that can be easily tested independently before final assembly. This preliminary design approach ensures that future maintenance and repairs can be performed efficiently without disassembling the entire display module.
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 enables more efficient and flexible control of inorganic LEDs, reducing the complexity of the display module's wiring and manufacturing process while maintaining high resolution and contrast, allowing for thinner and more versatile display designs.
Implementation Method 1
each pixel of the plurality of pixels including a plurality of inorganic light emitting diodes (LEDs)
Data Source
AI summary
A display module includes a substrate; a plurality of pixels provided on a surface of the module substrate; a plurality of first micro-pixel controllers provided in spaces between the plurality of pixels, and a plurality of second micro-pixel controllers provided in a periphery area of the upper surface of the module substrate, wherein each of the plurality of first micro-pixel controllers controls two or more pixels of the plurality of pixels, and at least one function performed by the plurality of first micro-pixel controllers is different from at least one function performed by the plurality of second micro-pixel controllers.