Mirror OLED Reflective Member Layout for Uniform Bezel Reflectivity
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Solution Overview
Problem
Existing organic light emitting display devices with mirror and touch functions face issues in maintaining consistent reflectivity between the display area and peripheral areas due to differences in reflective member design, leading to a non-uniform reflective appearance.
Innovation Solution
Incorporating a reflective member with a first reflective portion in the display area and a second reflective portion in the peripheral area, both with strategically designed openings to match in shape, size, and reflectivity, and a light-blocking pattern to ensure consistent reflectivity, along with a thin film encapsulation layer for flexibility and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a reflective member is disposed in both the display area and peripheral area with different designs, then the display area can achieve light emission function, but the reflectivity between display area and peripheral area becomes inconsistent
Solution Approach 1:
The reflective member is designed with different opening patterns in different areas: the display area has a first opening pattern optimized for light emission, while the peripheral area has a second opening pattern optimized for reflection. This local differentiation allows each area to have optimal performance for its specific function while maintaining overall reflectivity consistency through careful design of the opening patterns and their distributions.
2Device complexity
If the reflective member is made as a single integrated structure, then manufacturing is simplified, but the reflectivity uniformity between display and peripheral areas deteriorates
Solution Approach 1:
The reflective member is segmented into multiple regions with different opening patterns: a first opening pattern in the display area and a second opening pattern in the peripheral area. This segmentation allows each region to be optimized for its specific function while remaining part of an integrated structure, thus maintaining both manufacturing simplicity and reflectivity uniformity.
3Adaptability or versatility
If openings are formed in the reflective member, then light emission and reflection functions are enabled, but the structural integrity and uniformity of the reflective member is reduced
Solution Approach 1:
Different opening patterns are applied to different areas: the display area uses a first opening pattern that allows light emission while the peripheral area uses a second opening pattern that optimizes reflection. The opening sizes, shapes, and distributions are carefully controlled in each area to maintain structural integrity while enabling the required optical functions.
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 approach enables the creation of a bezel-less mirror organic light emitting display with uniform reflectivity, enhanced flexibility, and integration of touch functionality, addressing the inconsistency in reflective appearance and improving manufacturing efficiency.
Implementation Method 1
a first reflective member positioned in both the display area and the peripheral area. The first reflective member includes a first opening formed in a light-emitting region of the display area and a second opening formed in the peripheral area
Data Source
AI summary
An organic light emitting display device includes a substrate comprising a display area and a peripheral area and a first reflective member positioned in both the display area and the peripheral area. The first reflective member includes a first opening formed in a light-emitting region of the display area and a second opening formed in the peripheral area. The second reflective portion has openings having the same shape as openings formed in the first reflective portion. Thus, a reflectivity of the first reflective portion may be substantially the same as a reflectivity of the second reflective portion, and the first reflective portion and the second reflective portion may be perceived as an integral reflective member. Therefore, a bezel-less mirror organic light emitting display device may be manufactured.