Modular Pixel Array for High Aperture Ratio Displays
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Solution Overview
Problem
Current multimedia devices face challenges in achieving high aperture ratio, compactness, low power consumption, and easy maintenance due to the complexity and cost of manufacturing thin-film transistors on glass substrates, which also limits the repairability and uniformity of pixel units in display panels.
Innovation Solution
A pixel array design incorporating a display medium module with at least two pairs of electrodes and an active switching element, where the active switching element is electrically connected to the electrodes to control the display medium, and a connecting module with conductors to integrate the active switching element with the display medium module, allowing for independent assembly and repair of pixel units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If thin-film transistors are directly formed on glass substrate, then display function is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
The pixel unit is divided into separate functional modules: glass substrate with electrode, display medium, and thin-film transistor assembly. These modules can be manufactured independently and then assembled, reducing overall manufacturing complexity while maintaining functionality.
Solution Approach 2:
The thin-film transistor is extracted from the glass substrate and formed as a separate component. This allows the TFT to be manufactured using standard semiconductor processes on a separate substrate, then transferred and assembled with the display medium module, simplifying the overall manufacturing process.
2Ease of manufacture
If thin-film transistors are directly formed on glass substrate, then display function is achieved, but manufacturing cost increases
Solution Approach 1:
By segmenting the pixel unit into separate modules that can be manufactured using existing standard processes and then assembled, the invention reduces the need for expensive specialized manufacturing equipment and processes, thereby lowering manufacturing costs.
Solution Approach 2:
Extracting the TFT from the glass substrate allows it to be manufactured using mature semiconductor fabrication processes on separate substrates, which are then assembled with the display medium module. This approach leverages existing manufacturing capabilities and reduces overall production costs.
3Ease of repair
If pixel units are integrally formed with glass substrate, then structural integrity is maintained, but repairability decreases
Solution Approach 1:
The pixel unit is segmented into replaceable modules including the display medium module and TFT assembly that can be independently manufactured and assembled. When a pixel fails, only the defective module needs to be replaced rather than the entire glass substrate, significantly improving repairability.
Solution Approach 2:
The design allows defective pixel modules to be discarded and replaced with new or refurbished modules. The modular architecture enables easy recovery and reuse of functional components, reducing waste and improving sustainability.
4Manufacturing precision
If more thin-film transistors and capacitors are added for OLED display medium, then display quality improves, but aperture ratio decreases
Solution Approach 1:
By separating the TFT control circuitry from the pixel aperture area and assembling them as independent modules, the invention maximizes the aperture area while maintaining the necessary control elements. The segmented architecture allows optimal positioning of electronic components outside the light-emitting region.
Solution Approach 2:
The invention moves the TFT and capacitor components to a different spatial dimension or plane, assembling them separately from the display medium module. This dimensional separation allows the aperture area to be maximized while still incorporating all necessary control elements in the overall pixel structure.
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 design enhances the aperture ratio, reduces manufacturing complexity and costs, improves repairability, and enables more efficient power management, while maintaining high display quality and flexibility.
Implementation Method 1
light display is generated by adding the electric field to move the carrier, resulting in electrons and the hole carrier recombination phenomenon
Implementation Method 2
The active switching element is electrically connected to first electrodes for allowing the first electrodes and the second electrodes to change a state of the display medium
Data Source
AI summary
A pixel array includes a display medium module, an active switching element, and a connecting module. Each display medium module includes two pairs of electrodes and a display medium. Each pair of electrodes has a first electrode and a second electrode. The display medium is disposed between first electrodes and second electrodes. The active switching element is electrically connected to the first electrodes for allowing the first electrodes and the second electrodes to change a state of the display medium. The connecting module is integrated with the display medium module to electrically connect the active switching element to the first electrodes via conductors of the connecting module.