Top-Emission OLED Panel Layout for Narrow-Bezel Gate Integration
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Solution Overview
Problem
Conventional display panels face challenges in minimizing frame width, especially in high-resolution OLED products, due to the difficulty in integrating the gate driving circuit within the limited display area without occupying valuable space.
Innovation Solution
The organic electroluminescence display panel incorporates a gate driving circuit and pixel driving circuits within the display area, with top emission type light-emitting units spanning over the data lines to cover all circuits, allowing for an overlap of the gate driving circuit's projection with the light-emitting units' projection on the substrate, thereby eliminating the need for a frame and achieving an ultra-narrow or frameless design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the gate driving circuit is moved from the frame area to the display area to narrow the frame, then the frame width is reduced, but the display area becomes insufficient to accommodate both the pixel driving circuits and the gate driving circuit in high-resolution OLED products
Solution Approach 1:
The patent applies dimensionality change by allowing the light-emitting units to extend in the vertical direction (stacked structure with multiple sub-pixels per pixel unit) and by utilizing the overlapping projection area between the gate driving circuit and light-emitting units. This enables the gate driving circuit to be disposed in the display area without increasing the horizontal frame width, effectively resolving the space conflict in high-resolution displays
Solution Approach 2:
The patent implements nesting by placing the gate driving circuit within the projection area of the light-emitting units. The gate driving circuit is nested under the light-emitting units in the vertical stacking direction, allowing both components to coexist in the display area without occupying additional horizontal space, thus maintaining narrow frame width while accommodating complex circuitry
2Length of stationary object
If the gate driving circuit is disposed in the display area, then the frame can be narrowed or eliminated, but the wiring space for both gate and pixel driving circuits becomes insufficient
Solution Approach 1:
The patent segments the display area into multiple functional zones: pixel driving circuit regions, gate driving circuit regions, and light-emitting unit regions. By segmenting the circuit layout and assigning specific areas for different circuit functions within the display area, sufficient wiring space is ensured for both pixel and gate driving circuits while maintaining the overall compact design
Solution Approach 2:
The patent utilizes the vertical dimension through stacked sub-pixel structures and multi-layer circuit routing. This allows wiring to be distributed across multiple vertical layers and horizontal zones, providing adequate wiring space for complex circuits without increasing the horizontal frame width
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 ensures sufficient wiring space for both gate and pixel driving circuits, allowing for a more compact display design with reduced frame width, suitable for high-resolution OLED products.
Implementation Method 1
organic electroluminescence display panel... top emission type light-emitting units
Data Source
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AI summary
The present disclosure relates to an organic electroluminescence display panel, a fabricating method thereof, and a corresponding display device. The organic electroluminescence display panel includes: a base substrate including a display area; a gate driving circuit and a plurality of pixel driving circuits located in the display area; and a plurality of top emission type of light-emitting units located in the display area. An orthographic projection of the gate driving circuit on the base substrate at least partially overlaps with an orthographic projection of the plurality of top emission type of light-emitting units on the base substrate.