Transparent Display GIP Region Transmissive Area Optimization
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Solution Overview
Problem
Transparent display devices face challenges in maximizing the transmissive region area within the GIP region due to the presence of non-transparent and thick lines for voltage application, which limits the slimming of the bezel and reduces transmittance, while also causing a yellowish phenomenon.
Innovation Solution
A transparent display panel design where the GIP region acts as a transmissive region, with GIP input and output signal lines constituting different layers and no bank layer is formed on the GIP circuit region, allowing for increased spacing between signal lines and eliminating the need for non-transparent thick lines in the bezel, thereby enhancing transmittance and reducing the yellowish effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-transparent thick lines are disposed in the bezel for voltage application, then electrical connection is ensured, but the transmissive region area decreases and bezel slimming is limited
Solution Approach 1:
The patent applies dimensionality change by moving voltage application lines from the planar bezel region into the third dimension through contact holes penetrating the substrate. This allows electrical connections to be established without occupying lateral space in the bezel, thereby preserving the transmissive region area while ensuring proper voltage delivery to the GIP circuit region.
Solution Approach 2:
The patent extracts the voltage application function from the traditional bezel location and relocates it to the GIP circuit region itself. By using contact holes to deliver voltages (VDD, VSS, REF) directly to the circuit region, the design eliminates the need for non-transparent thick lines in the bezel, thus maximizing the transmissive region area.
2Length of stationary object
If GIP transistor circuit and signal lines are arranged closely together, then bezel slimming is achieved, but transmissive region area in GIP region decreases
Solution Approach 1:
The patent utilizes vertical stacking in the third dimension to arrange GIP transistor circuits and signal lines. By placing components at different heights through multiple layers and contact holes, the design achieves compact integration without reducing the lateral transmissive region area, thus maintaining both thin bezel and adequate transparency.
Solution Approach 2:
The patent implements a nested structure where the GIP circuit region is integrated within the transparent substrate layering system. Contact holes penetrate through multiple layers to connect circuit elements, allowing compact arrangement of transistors and signal lines while preserving the overall transparent appearance and region area.
3Reliability
If non-transparent thick line covers upper portion of GIP region, then voltage application is ensured, but transmission area cannot be secured
Solution Approach 1:
The patent extracts the voltage application function from the upper bezel region and relocates contact holes directly to the GIP circuit region. This allows voltage delivery (VDD, VSS, REF) without requiring non-transparent thick lines to cover the upper portion of the GIP region, thereby securing full transmission area while maintaining proper voltage application.
Solution Approach 2:
The patent uses contact holes as intermediary structures to deliver voltages from external sources to the GIP circuit region. These contact holes serve as the mediating mechanism that enables voltage application without requiring large non-transparent regions, thus preserving the transmission area while ensuring reliable voltage delivery.
Data Source
AI summary
In a transparent display panel, a GIP region acts as a transmissive region, thereby increasing or maximizing a transmissive area in the GIP region. To this end, a line for VSS voltage application is disposed in a display region. Thus, a non-transparent thick line for applying the VSS voltage is not disposed in an upper portion of a GIP circuit region. Thus, a transparent bezel in which the GIP region acts as the transmissive region is implemented. Further, a GIP input signal line region and a GIP output signal line region constitute different layers, thereby to maximize a spacing between GIP input signal lines, resulting in increasing or maximizing a transmissive area in the GIP circuit region.