Display Panel Signal Terminal Columns for Wiring Simplification
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Solution Overview
Problem
Display panels with under-screen photosensitive elements face chaotic circuit connections, which complicate automatic wiring and reduce the screen-to-body ratio due to the need for complex jumper connections between pixel driving circuits and light-emitting elements.
Innovation Solution
The display panel design includes a first display area with pixel driving circuits and light-emitting elements in the transition area, where signal output and input terminals are strategically arranged to limit wiring chaos, allowing for integral and unbroken connection lines that avoid cross-extensions and bridging at intersections, facilitating automatic wiring and improving light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If under-screen photosensitive elements are used to increase screen-to-body ratio, then screen-to-body ratio is improved, but circuit connection mode becomes chaotic and automatic wiring is difficult
Solution Approach 1:
The display panel is divided into distinct functional areas: a first display area containing pixel driving circuits and light-emitting elements, and a second display area containing only light-emitting elements. This segmentation organizes the chaotic circuit connections by separating the control functions from the display functions, making automatic wiring feasible while maintaining a high screen-to-body ratio
Solution Approach 2:
Signal terminal columns are introduced as intermediary structures between the pixel driving circuits and the light-emitting elements. These terminal columns provide standardized connection interfaces that simplify the circuit connection mode and facilitate automatic wiring, while still achieving the under-screen display configuration for high screen-to-body ratio
2Ease of manufacture
If signal output and input terminals are arranged to limit wiring chaos, then automatic wiring is facilitated, but light transmittance may be affected
Solution Approach 1:
The terminal columns are designed with localized functionality - they provide signal connection in specific regions without interfering with the overall light transmission path. The terminal columns are positioned and dimensioned to minimize their impact on light transmittance while providing sufficient connection capability for automatic wiring
Solution Approach 2:
The patent utilizes the vertical dimension (thickness direction) to route signal terminals and connection wirings, separating them from the primary light transmission plane. This dimensional separation allows the terminals to be arranged for easy wiring without blocking the light path, thus maintaining both automatic wiring capability and light transmittance
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a first display area including a display light-transmission area, a display transition area, a plurality of first pixel driving circuits located in the display transition area, a plurality of first light-emitting elements, a plurality of signal terminal columns arranged in a second direction, and a plurality of connection wirings extending integrally in the first direction. A signal terminal column includes a plurality of signal output terminals and a plurality of signal input terminals arranged in the first direction, a signal output terminal is electrically connected with an output terminal of a first pixel driving circuit, and a signal input terminal of is electrically connected to at least one light-emitting element, and the signal output terminal and the signal input terminal are electrically connected through a connection wiring.