Under-Display Pixel Layout for Camera Overlap Image Quality
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Solution Overview
Problem
The display quality of organic EL display devices is deteriorated in areas overlapping with a camera due to light emission from pixels interfering with light transmission for imaging.
Innovation Solution
Arranging sub-pixels at different intervals in overlapping and non-overlapping areas to optimize light transmission and prevent display quality degradation, using masks tailored for each area to ensure correct light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixels are arranged in a regular grid pattern across the entire display area, then manufacturing is simple and consistent, but display quality deteriorates in areas overlapping with the camera due to light emission interfering with light transmission
Solution Approach 1:
The patent applies local quality by implementing different pixel arrangements in different regions: a first pixel arrangement in the first area and a second pixel arrangement in the second area. This allows each region to be optimized for its specific function - the first area for display quality and the second area for camera light transmission - thereby resolving the contradiction between manufacturing simplicity and display quality in overlapping regions.
2Area of stationary object
If the display area is extended to overlap with the camera area, then the overall display area increases, but light emission from pixels in the overlapping area interferes with light transmission to the imaging device
Solution Approach 1:
The patent segments the display panel into a first area and a second area with different pixel arrangements. The second area, which overlaps with the camera, uses a pixel arrangement optimized for light transmission, reducing light emission interference while maintaining the extended display area benefit.
Solution Approach 2:
Different pixel arrangements are applied to different regions: the first area uses one arrangement type while the second area (overlapping with camera) uses another arrangement type optimized for light transmission, thereby resolving the interference issue in the overlapping region while maintaining extended display area.
3Device complexity
If a single pixel arrangement is used across the entire display panel, then device complexity is low, but display quality and light transmission cannot be simultaneously optimized for both display and camera functions
Solution Approach 1:
The patent implements local quality by using different pixel arrangements in different regions of the display panel. The first pixel arrangement in the first area optimizes for display quality, while the second pixel arrangement in the second area optimizes for light transmission to the camera, thereby achieving simultaneous optimization of both functions without significantly increasing device complexity.
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
Improves display quality by preventing dot and stripe patterns, ensuring consistent color expression, and enhancing light transmission to the camera while maintaining image clarity.
Implementation Method 1
organic electroluminescent (EL) elements
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a display panel on which a first pixel including a first light emitting element which emits light of a first color, a second pixel including a second light emitting element which emits light of a second color, and a third pixel including a third light emitting element which emits light of a third color are arranged, and an imaging device receiving light through the display panel. At least one of the first to third pixels which overlap with the imaging device in planar view is arranged with an interval different from an interval of the first to third pixels which do not overlap with the imaging device in planar view.