Organic Light Emitting Display Wiring Layout for Screen Area
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Solution Overview
Problem
The existing organic light emitting display apparatus has a significant dead space for wiring on the panel, which reduces the screen size and necessitates a method to effectively minimize this space to achieve a larger screen.
Innovation Solution
The apparatus includes a panel with a screen portion and a non-screen portion, featuring first and second wiring portions on opposite sides of the panel, connected via a film substrate to a main board, allowing for separate connections of gate lines, data lines, and driving power lines, thereby reducing the width occupied by wiring and enhancing screen size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wirings are disposed on the display panel to connect electrodes to electric power, then the display apparatus can function properly, but the dead space occupied by wirings increases and the screen size is reduced
Solution Approach 1:
The patent divides the wiring connections into multiple separate wiring portions (first wiring portion, second wiring portion, third wiring portion, fourth wiring portion) disposed at different locations on the non-screen portion. This segmentation allows each wiring portion to be independently routed to different sides of the screen portion, distributing the wiring space requirements and reducing the overall dead space occupation on any single area.
Solution Approach 2:
The patent utilizes the non-screen portion surrounding the screen portion as an additional dimensional space for routing wirings. By extending wiring paths into the non-screen area and connecting to pad portions at opposite sides of the screen portion, the design moves wiring connections from a two-dimensional plane constraint to a three-dimensional spatial arrangement, effectively reducing the wiring footprint on the active display area.
2Area of stationary object
If the dead space for wiring is reduced to increase screen size, then the screen area is improved, but the wiring connection structure becomes more complex
Solution Approach 1:
The film substrate serves multiple functions: it acts as the base for the display panel, provides the mounting surface for pad portions, and facilitates the connection between the main board and the wiring portions. The pad portions themselves serve dual purposes as both connection terminals for the wiring portions and as interfaces for mounting the film substrate, thereby reducing the need for additional separate connection structures.
Solution Approach 2:
The patent introduces pad portions as intermediary elements between the wiring portions and the main board. These pad portions simplify the connection structure by providing standardized connection points that can be easily interfaced with the main board, reducing the complexity of direct wiring-to-board connections while maintaining reliable electrical connections.
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 configuration effectively reduces the dead space occupied by wiring, enabling a larger screen size by separating the wiring portions and directly connecting data and driving power lines to pad portions, thus minimizing the non-screen portion's width.
Implementation Method 1
When voltages are applied to the anode and the cathode, holes injected from the anode and electrons injected from the cathode are recombined in the emission layer to generate excitons, and light is emitted and thus images are displayed while excitons drop from an excited state to a ground state.
Data Source
AI summary
An organic light emitting display apparatus capable of reducing a dead space for arranging wirings in a panel. The organic light emitting display apparatus includes: a panel including a screen portion on which images are displayed and a non-screen portion surrounding the screen portion; a first wiring portion and a second wiring portion formed on different locations of the non-screen portion to be connected to pixel wirings on the screen portion; and a film substrate including a plurality of connection portions connected to the first wiring portion and the second wiring portion. Thus, the dead space that is formed on the non-screen portion of the panel for forming the wirings may be effectively reduced.