Transparent OLED Display with Dynamic Blind Panel for Outdoor Visibility
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Solution Overview
Problem
Conventional OLED displays using metal mirrors or plates for optical efficiency are not suitable for transparent displays, as they either block backlight or reflect light, limiting their use to controlled light sources and preventing outdoor or multi-light source applications.
Innovation Solution
A display apparatus featuring a transparent OLED panel paired with a blind panel comprising individually drivable micro shutter cells that can reflect or block light, allowing for selective operation modes such as window, transparent display, mirror, and mirror display modes by controlling the position of the cells between 0 to 90 degrees, enabling operation in various lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a metal mirror is disposed on the opposite side of the user to improve optical efficiency, then light emission efficiency is improved, but the display cannot be used in outdoor or multi-light source environments
Solution Approach 1:
The patent applies a dynamic blind panel with individually controllable cells that can switch between different states (open, closed, reflective) based on environmental lighting conditions. This dynamic adjustment allows the display to adapt to various lighting environments including outdoor and multi-light source scenarios while maintaining optimal optical efficiency through active control rather than fixed structural design.
Solution Approach 2:
The patent changes the operational parameters of the display system by introducing a blind panel with cells that can individually adjust their light transmission and reflection properties. By controlling the position and state of each cell, the system can dynamically modify its optical characteristics to suit different lighting conditions, thereby resolving the contradiction between maintaining high optical efficiency and adapting to diverse environments.
2Object-affected harmful factors
If a metal plate is used to block backlight, then light blocking performance is improved, but the display cannot transmit information effectively in transparent mode
Solution Approach 1:
The patent segments the backlight blocking function into individually controllable cells within the blind panel. Instead of using a single metal plate that completely blocks light, the system divides the blocking function across multiple cells that can be independently controlled. This allows selective blocking of backlight in specific regions while maintaining transparency in other regions, thus preventing information loss while still providing effective backlight control where needed.
Solution Approach 2:
The patent applies local quality by enabling different regions of the blind panel to have different optical properties. Individual cells can be set to open, closed, or reflective states based on local requirements, allowing the display to maintain transparency and information transmission capability in areas where it is needed while providing backlight blocking in specific regions where it is required.
3Illumination intensity
If the OLED is used in transparent display mode, then transparency is improved, but the display cannot operate in outdoor or multi-light source environments
Solution Approach 1:
The patent achieves multi-functionality by combining the transparent OLED display with a blind panel that provides multiple operational modes. The blind panel cells can be controlled to create different states: fully open for maximum transparency, fully closed for privacy or outdoor use, or selectively positioned for partial transparency. This universal design allows the display to function effectively across diverse environments including indoor transparent mode, outdoor mode with enhanced contrast, and privacy mode, thereby resolving the contradiction between maintaining transparency and expanding environmental adaptability.
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
The solution allows the OLED display to function effectively in diverse lighting environments, including outdoors and areas with multiple light sources, by selectively controlling light transmission and reflection, enhancing visibility and efficiency.
Implementation Method 1
The cell may include a body which reflects or blocks light
Data Source
AI summary
A display apparatus may be provided that includes: a transparent display panel; a blind panel which is disposed adjacent to the transparent display panel and includes a plurality of cells that are individually drivable; and a controller which changes an operation mode through an on/off of the transparent display panel and a selective drive of a cell included in the blind panel. As a result, the display apparatus according to the embodiment of the present invention is a transparent display apparatus using the OLED. The display apparatus is able to operate without the external environmental constraints and to operate in various modes including the display function.