Display Panel Protrusion Recess for Driver Chip Placement
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Solution Overview
Problem
Conventional display panels struggle to meet the increasing demand for full-screen display technology due to insufficient space for electrical components, leading to issues like poor electrical properties and improperly sealed liquid crystal cells.
Innovation Solution
The display panel design includes protrusions on the non-display region with a recess between them, allowing the driver chip to be positioned between the display and non-display regions, and a flexible circuit board bent within the recess, maintaining a narrow non-display region and enhancing electrical connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the non-display region is compressed to increase screen-to-body ratio, then the screen-to-body ratio is improved, but the space for electrical components becomes insufficient
Solution Approach 1:
The flexible circuit board transitions from a planar configuration to a three-dimensional bent structure, utilizing the Z-direction (thickness dimension) by bending along the recess. This dimensional transition allows the circuit board to accommodate electrical components in a compact footprint while maintaining adequate spacing, effectively resolving the contradiction between minimizing display region area and maximizing component accommodation space.
Solution Approach 2:
The driver chip is positioned within the non-display region and nested between the display region and the bent flexible circuit board. This nesting arrangement allows multiple functional elements (display region, driver chip, circuit board) to occupy overlapping or adjacent spatial zones efficiently, maximizing the utilization of the compressed non-display region without compromising component functionality.
2Area of stationary object
If the driver chip is positioned close to the display region to save space, then the space utilization is improved, but compression-related defects occur
Solution Approach 1:
The recess in the array substrate acts as an intermediary spatial zone that separates the driver chip from the display region while accommodating the bent flexible circuit board. This intermediary structure provides mechanical isolation and stress relief, preventing compression forces from being transmitted to the driver chip and liquid crystal cells, thereby maintaining electrical properties and sealing quality while achieving compact space utilization.
3Device complexity
If the flexible circuit board is laid flat to simplify structure, then the structural complexity is reduced, but the screen-to-body ratio decreases
Solution Approach 1:
The flexible circuit board employs a dynamic bent configuration rather than a static flat layout. The bending along the recess allows the circuit board to adapt to the compact display panel geometry, achieving a high screen-to-body ratio while maintaining electrical connectivity. This dynamic structure optimizes space utilization without significantly increasing manufacturing complexity.
Data Source
AI summary
The disclosure provides a display panel and a display device. In an array substrate of the display panel, at least two protrusions are defined on a side of a non-display region away from a display region to form an extending portion. A recess is defined between adjacent protrusions. A driver chip is disposed in a space between a periphery of a display region and a periphery of a non-display region. Distances between the driver chip, the periphery of the display region, and the periphery of the non-display region are increased. A bending section of a flexible circuit board is disposed in the recess. As a result, width of the non-display region will not be increased.