Display Panel Transmissive Area for Under-Display Sensors
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Solution Overview
Problem
Existing display panels face challenges in integrating components like cameras or sensors while maintaining a large display area, as these components often require overlapping with the display area.
Innovation Solution
A display panel structure is introduced, featuring a transmissive area that allows light or sound to pass through, with components such as cameras or sensors arranged beneath the display panel in this area. The panel includes a substrate with a polymer resin, pixel circuits with thin-film transistors, light-emitting diodes, a bottom metal layer with openings for transmissive areas, and a protective layer with openings that overlap the bottom metal layer's openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If components such as cameras or sensors are arranged in the display panel to provide various functions, then the functionality of the display panel is improved, but the display area is reduced
Solution Approach 1:
The patent moves components from the planar display area into the third dimension by placing them beneath the display panel in a transmissive area. This vertical relocation allows components to coexist with the display area without occupying lateral space, thereby maintaining full display area while adding functional capabilities.
Solution Approach 2:
The patent introduces a transmissive area with specific optical properties as an intermediary zone between the display area and the component layer beneath. This transmissive area allows light to pass through while providing a dedicated space for components, effectively mediating between the conflicting requirements of display area and component integration.
2Adaptability or versatility
If components are arranged to overlap the display area, then the functionality is improved, but the transparency of the display panel is compromised
Solution Approach 1:
The patent applies different optical qualities to different regions: the display area maintains full transparency for optimal display performance, while the transmissive area beneath it is designed with specific light transmission properties to accommodate components. This localized differentiation allows each region to optimize its primary function without compromising the other.
Solution Approach 2:
By relocating components to the transmissive area beneath the display panel rather than overlapping the display area, the patent separates the optical path from the component placement space. This dimensional separation preserves the transparency of the display area while still enabling component integration in the underlying transmissive region.
Data Source
AI summary
Provided are a display panel and an electronic apparatus including the display panel. The display panel includes a substrate including a polymer resin; first and second pixel circuits each including a thin-film transistor, a first light-emitting diode connected to the first pixel circuit and located in a first display area; a second light-emitting diode connected to the second pixel circuit and located in a sub-display area of a second display area, a bottom metal layer in the second display area and between the substrate and the second pixel circuit; and a protective layer between the substrate and the bottom metal layer and corresponding to the first and second display areas, wherein the bottom metal layer includes a first opening in a transmissive area, and the protective layer includes a second opening in the transmissive area and overlapping the first opening of the bottom metal layer.