Transparent Display Panel Slimmed Bezel via 3D Line Nesting
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Solution Overview
Problem
Transparent display devices face challenges in minimizing bezel thickness and reducing light diffraction, which affects the clarity and visibility of the display.
Innovation Solution
A transparent display panel with a new pixel arrangement structure that includes a bezel with an increased transparent region, achieved by minimizing the area covered by non-transparent lines and avoiding parallel regularity and periodicity of transmissive regions to reduce light diffraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-transparent and thick lines are disposed on the bezel to supply data voltage or power voltage, then electrical resistance is reduced, but the transparent region area is reduced and the bezel cannot be slimmed
Solution Approach 1:
The patent transitions from planar 2D line arrangements to a 3D multi-layer structure. Conductive lines are disposed at different heights (first through fourth heights) above the substrate, allowing electrical connections to pass through the bezel region without blocking the transparent area when viewed from the front. This vertical stacking enables slim bezel design while maintaining electrical functionality.
Solution Approach 2:
Multiple conductive lines are nested vertically within the bezel region at different heights. The first, second, third, and fourth conductive lines are stacked in the vertical direction, with each line serving specific electrical functions. This nesting allows efficient use of the limited bezel space while maintaining low electrical resistance and high transparency.
2Ease of manufacture
If parallel regularity and periodicity of transmissive regions are maintained, then manufacturing is simplified, but light diffraction occurs and clarity is reduced
Solution Approach 1:
The patent introduces asymmetric and aperiodic arrangements of transmissive regions within the pixel structure. Instead of uniform periodic patterns, the transmissive regions are positioned with varied spacing and orientations, disrupting the regularity that causes diffraction while maintaining manufacturability through standard photolithography processes.
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 enhances the transparency of the bezel, allowing for a slimmer design while minimizing light diffraction, thereby improving the clarity and visibility of the transparent display device.
Implementation Method 1
a transmissive region TA that transmits light from the light-emitting region EA
Implementation Method 2
when diffraction of light occurs in the transparent display device, a haze value increases. As a result, clarity or visibility of the transparent display device may be reduced
Data Source
AI summary
A transparent display panel and a transparent display device including the same are disclosed. The transparent display panel includes a display region and a non-display region. The display region includes a plurality of light-emitting regions, a plurality of transmissive regions, a plurality of line regions spaced from each other and arranged in one direction, and a plurality of pixel circuit regions electrically connected to the light-emitting regions respectively to drive the light-emitting regions. Alternately-arranged adjacent line regions include alternately-arranged adjacent VSS voltage connection line and VDD voltage connection line, respectively. Thus, a new pixel arrangement structure that may increase or maximize a transparent area of a bezel and reduce or minimize a haze value without reducing transmittance of the display region may be realized.