Parallel Electrode Lead-Out Wires for Full-Screen Display
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Solution Overview
Problem
The display effect is compromised due to the increased width of the side edge or bonding interface between PMOLED and AMOLED display panels when lead-out wires are led out from the side edge of the PMOLED in notched areas, affecting the full-screen display and image rendering.
Innovation Solution
The implementation of electrode lead-out wires that extend in parallel with the second electrodes, allowing them to be led out from the edge of the PMOLED display panel not connected to the AMOLED, with a signal shielding layer and light-transmitting or light-blocking pixel definition layers to minimize interference and enhance display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lead-out wires are led out from the side edge of the PMOLED display panel, then the electrodes can be connected, but the width of the side edge and bonding interface increases, compromising the full-screen display effect
Solution Approach 1:
The patent changes the spatial arrangement by extending lead-out wires in parallel with the second electrodes rather than perpendicular to them. This dimensional reconfiguration allows the wires to be routed along the edge without increasing the side edge width, as they follow the same direction as the electrode patterns already present at the boundary.
Solution Approach 2:
The lead-out wires serve multiple functions: they provide electrical connection for the first electrodes, extends in parallel with second electrodes to minimize width increase, and work in conjunction with the pixel definition layer to manage light transmission. This multi-functionality resolves the contradiction by achieving electrode connection without sacrificing display quality.
2Manufacturing precision
If the pixel definition layer blocks light, then image clarity improves, but light transmittance to photosensitive devices decreases
Solution Approach 1:
The pixel definition layer is designed with spatially varying properties: it has light-blocking characteristics in display areas to ensure image clarity, while maintaining light-transmitting properties in camera areas to allow photosensitive devices to function. This local differentiation resolves the contradiction by providing both image clarity and light transmittance where needed.
Solution Approach 2:
The display panel is segmented into different functional areas: display areas with light-blocking pixel definition layers for image rendering, and camera areas with light-transmitting pixel definition layers for photosensitive device operation. This segmentation allows simultaneous achievement of image clarity and light transmittance in different regions.
Data Source
AI summary
A display screen includes a first display area and a second display area that are adjacent to each other. The first display area is connected to the second display area. The display screen further includes a first display panel and a second display panel. The first display panel includes a first substrate, a first electrode layer formed on the first substrate, a first pixel definition layer formed on the first electrode layer, a second electrode layer formed on the first pixel definition layer, and electrode lead-out wires. The first electrode layer includes first electrodes. The first electrode is adjacent to the second display panel. The second electrode layer includes second electrodes. The second electrodes respectively intersect across the first electrodes. The electrode lead-out wires are respectively connected with the first electrodes, and respectively extend in parallel with the second electrodes in the same direction.