Bent Circuit Module Layout for Slim Bezel Display Panels
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Solution Overview
Problem
Conventional display devices struggle to achieve a thin design due to the increased thickness caused by folding the external control circuit board behind the backlight module, which contradicts the goal of narrow bezels or frameless designs.
Innovation Solution
The display device incorporates a circuit connection module with a bending section that connects to the display panel's bottom surface, allowing the circuit bearing portion to be partially connected near the first end, and a supporting block that extends alongside the circuit bearing portion, reducing overall thickness and providing structural support to prevent bending and collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the external control circuit board is folded to the back of the backlight module, then the width of the bottom frame is reduced, but the overall thickness of the display device increases
Solution Approach 1:
The circuit board is bent along a bending line to change its spatial arrangement from a flat layout to a three-dimensional configuration. The first portion remains at the bottom surface while the second portion extends to the side surface, utilizing vertical and lateral dimensions to resolve the space conflict between frame width and device thickness.
Solution Approach 2:
The circuit board is divided into two distinct portions: a first portion that remains substantially planar at the bottom surface, and a second portion that is bent at an angle to extend toward the side surface. This segmentation allows each portion to serve different functions while collectively solving the spatial constraint problem.
2Length of moving object
If the circuit board is made thinner to reduce device thickness, then the device becomes thinner, but the display panel becomes more susceptible to breaking under external force
Solution Approach 1:
A supporting block is pre-installed on the inner side of the display panel at the location corresponding to the first portion of the circuit board. This supporting block acts as a cushioning element that absorbs and distributes external forces before they can reach and break the display panel, providing protective reinforcement without adding significant thickness.
3Reliability
If the supporting block is added to protect the display panel, then the display panel is protected from bending, but the device complexity increases
Solution Approach 1:
The supporting block is integrated with the circuit board assembly rather than being a separate, independently mounted component. The supporting block is positioned to work in conjunction with the bent circuit board structure, merging the support function with the existing circuit board layout to minimize additional complexity.
Data Source
AI summary
A display device includes a display panel, a circuit connection module, and a supporting block. The display panel has a first end and a bottom surface. The circuit connection module has a connecting end, a circuit bearing portion, and a bending section between the connecting end and the circuit bearing portion. The connecting end is connected to the display panel at the first end while the bending section bends to make the circuit bearing portion connect to the bottom surface near the first end. The supporting block is arranged with the circuit bearing portion in an extending direction of the first end, and are at least partially connected to the portion of the bottom surface near the first end.