Micro-LED Display Panel Transparent Plate Driver Placement
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Solution Overview
Problem
Conventional display panels with micro-LEDs face challenges in power transferring efficiency and manufacturing complexity, particularly in achieving uniform brightness and color accuracy due to differences in light source characteristics.
Innovation Solution
A display panel design featuring a TFT substrate with strategically positioned connection pads and a transparent plate that includes additional connection pads and drivers, allowing for improved power transfer and control of micro-LEDs, with the driver disposed on the transparent plate's outer edge to enhance power distribution and reduce manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the driver is disposed adjacent to the TFT substrate, then the manufacturing complexity is reduced, but the power transferring efficiency may be compromised
Solution Approach 1:
The transparent plate serves as an intermediary component between the driver and the TFT substrate. It includes connection pads on both its first surface (facing the TFT substrate) and second surface (facing the driver), enabling electrical connection while maintaining spatial separation. This mediator approach allows the driver to be disposed adjacent to rather than directly on the TFT substrate, simplifying manufacturing while preserving power transfer efficiency through the connection pad interface.
2Loss of energy
If connection pads are disposed on the transparent plate, then the power transfer is improved, but the device structure becomes more complex
Solution Approach 1:
The transparent plate performs multiple functions: it serves as a structural support element, an optical element (allowing light transmission), and an electrical connection interface through its connection pads. By integrating these multiple functions into a single component, the design improves power transfer efficiency without proportionally increasing device complexity, as the connection pads are incorporated into the existing transparent plate structure rather than adding separate connection components.
3Power
If the driver is disposed on the outer edge region of the transparent plate, then the power distribution is enhanced, but the area available for other components is reduced
Solution Approach 1:
The driver is disposed on the outer edge region of the transparent plate, utilizing the peripheral area rather than consuming central display area. This spatial arrangement in the edge region provides adequate space for power distribution traces and connection pads while maintaining the central area for the TFT substrate and display elements. The connection pads are strategically positioned at the intersection of the transparent plate and driver, optimizing power transfer without compromising display area.
Data Source
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AI summary
A display panel is provided. The display panel may include a plurality of light emitting diodes (LEDs); a thin film transistor (TFT) substrate configured to include a first connection pad and on which the plurality of LEDs are disposed, the plurality of LEDs being disposed in a predetermined region of an upper surface of the TFT substrate, and the first connection pad being disposed in another region of the upper surface of the TFT substrate and electrically connected to each of the plurality of LEDs; a transparent plate configured to be disposed on the TFT substrate and include a second connection pad, and a driver configured to be electrically connected to the second connection pad and be disposed in an outer region of the transparent plate.