Organic EL Panel Brightness Gradient for Depth Perception
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Solution Overview
Problem
Conventional light emitting devices using organic EL panels have a uniform design, which limits their ability to reduce thickness and size while maintaining a visually appealing design, as they lack a sense of depth and three-dimensional appearance.
Innovation Solution
The light emitting device incorporates a plurality of light emitting parts arranged to decrease brightness and area gradually toward a predetermined direction, with increased distances from power supply wiring and the inclusion of non-light emitting parts and a reflector to create a sense of depth, and can consist of multiple organic EL panels electrically connected in series for improved design and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a planar organic EL panel is used as a light source, then the device thickness is reduced, but the design lacks a sense of depth and three-dimensional appearance
Solution Approach 1:
The organic EL panel is divided into multiple light emitting parts with different brightness levels (first through fourth light emitting parts), creating a stepped brightness pattern that generates a sense of depth. This segmentation transforms the uniform planar emission into a structured gradient that simulates three-dimensional appearance while maintaining the thin profile of the organic EL panel.
Solution Approach 2:
Different regions of the organic EL panel are assigned different brightness characteristics. The first light emitting part has highest brightness, followed by progressively dimmer subsequent parts. This local quality variation creates visual depth perception in specific areas of the panel without requiring physical thickness, resolving the contradiction between thinness and three-dimensional appearance.
2Shape
If multiple organic EL panels are used to create depth effect, then design quality improves, but device complexity increases
Solution Approach 1:
Instead of using multiple separate organic EL panels stacked together, the invention segments a single panel into multiple independently controllable light emitting parts. This achieves the depth effect of multiple panels while maintaining the simplicity of a single panel structure, reducing electrical connection complexity and device thickness.
Solution Approach 2:
A single organic EL panel performs multiple functions by having different regions emit at different brightness levels. The panel simultaneously creates the primary light source, the depth effect, and the gradient illumination pattern, eliminating the need for multiple separate panels and their associated electrical connections.
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 configuration allows for a thinner light emitting device that presents a sense of depth to the viewer, enhancing the design while maintaining reduced thickness, and enables miniaturization and cost reduction through series connection of organic EL panels.
Implementation Method 1
a light emitting device using an organic EL (Electro Luminescence)
Data Source
AI summary
The present disclosure relates to a light emitting device using an organic EL. The light emitting device includes an organic EL panel where a plurality of light emitting parts is arranged toward a predetermined direction. The plurality of light emitting parts is configured such that brightness is decreased gradually toward the predetermined direction.