Display Device Light Blocking Edge Cover for Image Capture Noise
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Solution Overview
Problem
In organic EL display devices with an image capture unit, leaked display light from the display region can incident on the image capture unit, causing light noise in captured images.
Innovation Solution
A display device design that includes a light blocking portion in the second display region, where the image capture unit is located, at the boundary with the first display region, to absorb and prevent leaked display light from entering the image capture unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image capture unit is installed on the back side of the display panel to capture images through the display panel, then the image capture function is achieved, but leaked display light from the periphery enters the image capture unit causing light noise
Solution Approach 1:
A light blocking portion is introduced as an intermediary element between the display region and the image capture unit. This light blocking portion is configured to block leaked display light from reaching the image capture unit, thereby eliminating light noise while preserving the image capture function through the display panel.
Solution Approach 2:
The display panel is segmented into distinct functional regions: a display region for displaying images, a light blocking portion for blocking leaked light, and a region with the image capture unit for capturing images. This segmentation allows each component to perform its specific function without interfering with others, solving the light noise problem while maintaining image capture capability.
2Adaptability or versatility
If a through hole is provided in the non-display region to install electronic components, then the electronic component installation is achieved, but the structural complexity increases
Solution Approach 1:
The light blocking portion serves multiple functions: it blocks leaked display light from entering the image capture unit, and simultaneously acts as a structural support for the electronic component in the through hole. By combining light blocking and component mounting functions into a single element, the structural complexity is reduced while maintaining electronic component installation capability.
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
This design effectively suppresses the incidence of leaked display light on the image capture unit, minimizing light noise in captured images and allowing for clearer image capture.
Implementation Method 1
a light blocking portion is provided in the second display region at a boundary with the first display region
Data Source
AI summary
A display device includes: a base substrate; a thin film transistor layer provided on the base substrate; a light-emitting element layer provided on the thin film transistor layer including a plurality of first electrodes, a common edge cover, a plurality of function layers, and a common second electrode layered in this order; a sealing film provided on the light-emitting element layer; a second display region provided inside a first display region surrounded by the first display region; and an image capture unit provided in the second display region on an opposite side to the thin film transistor layer of the base substrate, wherein a light blocking portion is provided in the second display region at a boundary with the first display region. The light blocking portion is provided in the edge cover, and the edge cover, in the second display region, includes a black colored portion colored black.