Transparent Display Pixel Layout With Masked Connection Lines
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Solution Overview
Problem
Display devices face failures and visibility issues due to lines in areas where images are displayed and light transmits, particularly when optical devices overlap the display panel.
Innovation Solution
The display device incorporates a design with a non-display area and a display area, featuring a first and second area with different light transmittances, where a transistor and anode electrode of one pixel are in the first area, and the anode electrode of another pixel is in the second area. A connection line electrically connects the anode electrode and transistor, with at least part of the connection line covered by an anti-reflection layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If optical devices are located in the front face of the display device to eliminate the hole, then the display area is widened, but the optical devices may overlap the display panel causing visibility issues and failures
Solution Approach 1:
The patent moves the optical device from the front face (2D plane) to the back side of the display panel, utilizing the third dimension (depth) to resolve the conflict between display area and reliability. This spatial repositioning eliminates overlap issues while maintaining full display area.
Solution Approach 2:
The patent introduces a reflective layer as an intermediary between the optical device and the display panel. This reflective layer redirects light paths, allowing the optical device to function from the back side while still interacting with the display area, thus resolving the contradiction between placement location and functionality.
2Reliability
If connection lines are placed in the display area to connect transistor and anode electrode, then electrical connection is achieved, but the lines become visible and cause aesthetic issues
Solution Approach 1:
The patent extracts the connection line from the display area and relocates it to the non-display area. This separation removes the visible lines from the display region, eliminating aesthetic issues while maintaining electrical functionality through alternative routing paths.
Solution Approach 2:
The patent applies a reflective layer with specific optical properties to the connection line, changing its optical characteristics to match the surrounding display area. This makes the connection line less visible or invisible by blending its reflectivity and color properties with the display background.
3Illumination intensity
If the reflective layer is applied to cover the connection line, then line visibility is reduced, but the manufacturing complexity increases
Solution Approach 1:
The patent designs the reflective layer to serve multiple functions simultaneously: it acts as a reflective element for optical devices, a protective layer for connection lines, and a cosmetic layer to mask visible lines. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in manufacturing complexity.
Solution Approach 2:
The patent combines the reflective layer formation with existing manufacturing processes by integrating it into the same deposition or coating step used for other display layers. This merging of processes reduces the total number of manufacturing steps and minimizes the increase in manufacturing complexity.
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 or prevents failures caused by lines in the display area while making them less visible, enhancing the display's functionality and aesthetic appeal.
Implementation Method 1
at least a part of the connection line is in at least one of the first area and the second area, and is covered by an anti-reflection layer
Data Source
AI summary
A display device is provided. A display device includes a non-display area where no image is displayed, and a display area where images are displayed, and including a first area and a second area having different light transmittances, and a first pixel and a second pixel, wherein a transistor and an anode electrode of the first pixel are in the first area, wherein an anode electrode of the second pixel is in the second area, and a transistor of the second pixel is outside the second area, wherein the anode electrode and the transistor of the second pixel are electrically connected by a connection line, and wherein at least a part of the connection line is in at least one of the first area and the second area, and is covered by an anti-reflection layer.