Display Panel Under-Screen Camera Integration
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Solution Overview
Problem
Conventional electronic devices with notches or holes for integrating front cameras and other photosensitive elements are not truly full-screen, as these areas cannot be used for display.
Innovation Solution
A display panel design with a first display area of higher light transmittance for image display, a second display area of lower light transmittance for under-screen integration of photosensitive components, and a transitional area between them, optimized through specific electrode and nucleation inhibiting layer configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If notches or holes are provided on the display screen for integrating front cameras and photosensitive elements, then photosensitive components can be integrated, but the display area is reduced and the full-screen effect is compromised
Solution Approach 1:
The patent implements under-screen integration by nesting the photosensitive component assembly beneath the display panel. The support plate with photosensitive components is positioned in the cavity between the substrate and the light-emitting elements, allowing the display panel to maintain its full front surface for display while housing photosensitive elements underneath. This nesting approach eliminates the need for notches or holes, achieving true full-screen display while integrating cameras and sensors.
Solution Approach 2:
The patent transitions from a two-dimensional surface integration (notches/holes on the screen surface) to a three-dimensional volumetric integration (cavity beneath the display panel). By utilizing the vertical space and cavity structure underneath the display, the photosensitive components are accommodated in a different spatial dimension, allowing the front surface to remain completely dedicated to display purposes.
2Adaptability or versatility
If a light-transmitting area is created for under-screen integration, then photosensitive components can receive external light, but display effectiveness and uniformity deteriorate due to light transmittance differences
Solution Approach 1:
The patent applies local quality by creating a transitional display area with intermediate light transmittance between the high light-transmitting under-screen area and the normal display area. This gradual transition in optical properties across different zones of the display panel reduces abrupt visual boundaries and minimizes display stripes, thereby maintaining overall display uniformity while enabling under-screen component integration.
Solution Approach 2:
The transitional display area acts as an intermediary zone that mediates between the light-transmitting under-screen area and the normal display area. This intermediate region with moderate light transmittance smooths the optical transition, preventing sharp visual discontinuities and reducing display artifacts, thus maintaining display quality while facilitating under-screen integration.
3Adaptability or versatility
If the light transmittance of the display area is increased for under-screen integration, then photosensitive components can function effectively, but display brightness and contrast are reduced
Solution Approach 1:
The patent segments the display panel into distinct functional zones: a light-transmitting under-screen area with optimized light transmittance for photosensitive component operation, a transitional area with intermediate properties, and a normal display area with standard brightness characteristics. This segmentation allows each zone to be optimized for its specific function while maintaining overall display quality through careful design of the transitions between zones.
Data Source
AI summary
A display panel, a method for manufacturing a display panel, and a display device. The display panel includes: a substrate; and a pixel definition layer located on the substrate. The pixel definition layer includes isolation structures and pixel openings; and a nucleation inhibiting layer including first inhibiting units. A first orthographic projection of each of the first inhibiting units on the pixel definition layer covers corresponding one of the pixel openings in the transitional display area; and common electrodes including a first common electrode and a second common electrode, a second orthographic projection of the first common electrode on the pixel definition layer covers the first display area and at least part of an area except for the first orthographic projections in the transitional display area.