Antireflective Plate for Display Frame Area
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Solution Overview
Problem
Conventional displays face challenges in increasing screen size without escalating manufacturing costs, reducing yield, enlarging drive circuits, and increasing power consumption, while also dealing with external light reflection issues that obscure the view and superimpose it onto the displayed image.
Innovation Solution
The implementation of an antireflective plate that continuously covers both the display area and the frame area, ensuring the optical characteristics of the frame area match those of the display area, thereby obscuring the border between the display and the exterior, and preventing external light reflection, which enhances the apparent display area without increasing the display's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-reflecting layer is disposed on the rear surface of an electro-optic layer to enable light reflection for display, then the display can utilize reflected light for viewing, but external light incident on the viewing side is reflected back by the light-reflecting layer causing the view in front of the display to be superimposed on the displayed image
Solution Approach 1:
A circular polarizer is introduced as an intermediary component between the viewer and the display surface. This polarizer selectively blocks reflected external light while allowing displayed image light to pass through, thereby eliminating the harmful reflection effect without compromising the displayed image visibility
Solution Approach 2:
The circular polarizer changes the polarization state of light passing through it, effectively filtering out reflected external light based on its polarization characteristics while maintaining the transmission of the displayed image light, thus resolving the reflection issue
2Area of stationary object
If the size of the display is increased to provide a larger screen, then more viewing area is available, but manufacturing cost increases, yield reduces, drive circuit size increases, and power consumption increases
Solution Approach 1:
The invention extends the display's visual presence into the frame area by matching optical characteristics, creating an illusion of expanded display area without physically increasing the display panel size. This dimensional extension in the optical domain avoids all the manufacturing challenges associated with physically larger displays
Solution Approach 2:
By matching the optical characteristics (reflectance, color temperature) of the frame area to the display area, the invention creates a visual continuity that makes the frame area appear as part of the display, effectively increasing the apparent display area without physical expansion
3Area of stationary object
If the optical characteristics of the frame area are made to match those of the display area, then the border between the display and exterior is obscured, but this requires precise control of reflectance and other optical properties
Solution Approach 1:
The invention adjusts key optical parameters (reflectance, color temperature) of the frame area to match the display area characteristics. By controlling these specific parameters within certain ranges, the border between display and frame is obscured, creating an expanded apparent display area while maintaining manufacturability
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 solution effectively increases the apparent display area by minimizing light reflection and obscuring the border between the display and the exterior, providing a larger viewing experience without the need for larger components or increased power consumption.
Implementation Method 1
a light-reflecting layer that reflects light emitted from the electro-optic layer to the viewing side of the display device
Implementation Method 2
an antireflective plate continuously covers both of the display area and the frame area and prevents external light, which enters the viewing side of the display device and is reflected by the light-reflecting layer or the frame area, from emerging on the viewing side
Data Source
AI summary
A display device includes the following elements. A display has a display area and includes an electro-optic layer and a light-reflecting layer reflecting light emitted from the electro-optic layer to the viewing side of the display device, the light-reflecting layer being arranged in the display area. A plate-shaped exterior has a frame area including a portion located outside the periphery of the display. An antireflective plate continuously covers both of the display area and the frame area. The antireflective plate prevents external light, which enters the viewing side of the display device and is reflected by the light-reflecting layer or the frame area, from emerging on the viewing side.