Display Panel Structure With Transmission Area and Peripheral Pixel Circuits
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Solution Overview
Problem
Existing display panels face challenges in integrating additional functions within the display area while maintaining a reduced thickness and weight, and there is a need to enhance the integration of components that require light or sound transmission without compromising display quality.
Innovation Solution
A display panel design with distinct areas for different light-emitting elements, including a transmission area, and a peripheral area with specific conductive bus lines and sub-pixel circuits to accommodate components that require light or sound transmission, while maintaining display functionality and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional functions are integrated within the display area, then the functionality is enhanced, but the display resolution and light transmittance are compromised
Solution Approach 1:
The display panel is divided into distinct regions: a display area for high-resolution imaging and a peripheral area for additional functions. The transmission area within the peripheral area is specifically designed for components requiring light transmission, separating these functions spatially to maintain display quality while enabling enhanced functionality.
Solution Approach 2:
The patent extends the display structure into a third dimension by creating a peripheral area adjacent to the display area, allowing additional functions to be integrated without occupying display space. This dimensional expansion enables the transmission area to be positioned where it can serve both functional and optical purposes without compromising the display resolution.
2Weight of stationary object
If the display panel thickness is reduced, then the weight is decreased, but the structural strength and component integration are compromised
Solution Approach 1:
The peripheral area is designed with different structural characteristics than the display area. The transmission area includes specific structural features such as openings in the inorganic insulating layer and pixel-defining layer that accommodate components requiring light transmission while maintaining overall panel strength through localized structural optimization.
Solution Approach 2:
The patent employs composite layer structures including buffer layers, inorganic insulating layers, planarization layers, and pixel-defining layers with light-shielding materials. These composite structures provide both mechanical strength and functional properties (light transmission, electrical insulation) within a reduced thickness profile.
3Adaptability or versatility
If components requiring light transmission are integrated, then the functionality is enhanced, but the display quality is compromised
Solution Approach 1:
The display area is segmented from the peripheral area, and within the peripheral area, a transmission area is created specifically for components requiring light transmission. This spatial segmentation ensures that light transmission components do not interfere with the display quality in the display area while still enabling enhanced functionality.
Solution Approach 2:
The transmission area acts as an intermediary zone between the display area and external components. It provides a dedicated space where light transmission components can be integrated without directly impacting the display area, serving as a buffer zone that maintains display quality while enabling additional functionality.
4Adaptability or versatility
If the bending area is positioned in the peripheral area, then the flexibility is enhanced, but the structural stability is compromised
Solution Approach 1:
The display panel is segmented into a stable display area and a flexible peripheral area containing the bending area. This segmentation allows the bending area to be positioned where flexibility is needed while maintaining the structural stability of the display area, as the bending area is isolated in the peripheral region away from the display components.
Solution Approach 2:
The peripheral area where the bending area is located is designed with different structural properties than the display area. The inorganic insulating layer and pixel-defining layer are configured with openings and different thicknesses in the peripheral area to accommodate bending while maintaining structural integrity in the display area.
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
The design allows for enhanced integration of additional components that require light or sound transmission, while maintaining high display resolution and flexibility, enabling a cohesive image display across multiple areas with improved light transmittance and conductivity.
Implementation Method 1
the first conductive line may include a metal material, and the second conductive line may include transparent conducting oxide
Implementation Method 2
the second conductive line may have a higher light transmittance than the first conductive line
Data Source
AI summary
A display panel includes: a display area including: a first display area having a plurality of first light-emitting elements; a second display area having a plurality of second light-emitting elements and a transmission area; and a third display area having a plurality of third light-emitting elements; a peripheral area at an outer side of the display area and comprising a bending area; a plurality of first sub-pixel circuits in the first display area and electrically connected to the plurality of first light-emitting elements, respectively; a plurality of second sub-pixel circuits electrically connected to the plurality of second light-emitting elements, respectively; and a plurality of third pixel circuits electrically connected to the plurality of third light-emitting elements, respectively, wherein the plurality of second sub-pixel circuits are in the peripheral area, and the bending area is between the plurality of second sub-pixel circuits and the display area.