Display Panel Valley Portion for Component Integration
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Solution Overview
Problem
Display panels face challenges in extending the display area to accommodate electronic components, requiring innovative designs that maintain image quality and functionality while integrating components like cameras or sensors without compromising light transmittance and structural integrity.
Innovation Solution
The display panel incorporates a substrate with a bottom metal layer, a valley portion adjacent to the transmissive area, and a thin-film encapsulation layer including inorganic and organic layers, which allows for the integration of electronic components while ensuring light transmittance and structural integrity by optimizing the layer heights and arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display area is extended to include areas with electronic components, then the functionality and image quality are improved, but the light transmittance and structural integrity may deteriorate
Solution Approach 1:
The display panel is divided into a main display area and a component area, with the component area further segmented into a non-transmissive area (for electronic components) and a transmissive area (for light passage). This segmentation allows the display area to be extended while maintaining proper light transmittance characteristics in the transmissive area, resolving the contradiction between display area extension and light transmittance preservation.
Solution Approach 2:
Different regions of the display panel are assigned different optical properties: the main display area and component transmissive area allow light transmission, while the component non-transmissive area blocks light. This local differentiation of quality enables the display area to be extended to include component areas without compromising overall light transmittance, as only specific local regions maintain transmissive properties.
2Stability of the object's composition
If the valley portion height is increased to prevent encapsulation layer peeling, then the structural integrity is improved, but the manufacturing complexity and space requirements worsen
Solution Approach 1:
Instead of preventing encapsulation layer peeling through complex lateral reinforcement structures, the solution introduces a vertical dimension feature - the valley portion - that extends downward from the surface. This vertical structure allows the encapsulation layer to be deposited over the valley and adhere to the sloped surfaces, preventing peeling through vertical surface area increase rather than complex lateral structures.
3Adaptability or versatility
If electronic components are integrated within the display area, then the functionality is improved, but the manufacturing precision and process difficulty worsen
Solution Approach 1:
The valley portion structure is formed in advance, before the encapsulation layer is deposited. This preliminary formation of the valley structure provides a pre-established geometric reference that guides subsequent layer deposition and alignment processes, making it easier to achieve precise alignment when integrating electronic components within the display area.
Data Source
AI summary
Provided is a display panel including a main display area, a component area having a transmissive area, a peripheral area outside the main display area, a substrate, a bottom metal layer on the substrate, and defining an opening corresponding to the transmissive area, a valley portion adjacent to a boundary between the bottom metal layer and the transmissive area, and a thin-film encapsulation layer on the valley portion, and including an inorganic layer and an organic layer.