Display Device Circuit Board Overlap Reducing Peripheral Thickness
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Solution Overview
Problem
Existing display devices face challenges in reducing the width of the peripheral area adjacent to the display area while also minimizing the overall thickness of the device at the peripheral area.
Innovation Solution
The display device incorporates a circuit board with a first area overlapping the display panel and a second area not overlapping the panel, with electronic components placed in the second area. This configuration, combined with a flexible circuit film bent towards the back surface of the display panel, allows for a reduction in the width and thickness of the peripheral area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are mounted on a printed circuit board (PCB) within a display device, then the functionality of the display device is improved, but the overall thickness of the display device at the peripheral area increases
Solution Approach 1:
The patent positions electronic components in the second area of the circuit board that does not overlap the display panel along the thickness direction, utilizing the non-overlapping spatial dimension to accommodate components without increasing the overall device thickness at the peripheral area
Solution Approach 2:
The circuit board is divided into a first area overlapping the display panel and a second area not overlapping the display panel, allowing different functional zones to be separated spatially - the first area for connection and the second area for electronic components
2Area of stationary object
If the width of the peripheral area is reduced to increase screen-to-body ratio, then the display area occupancy is improved, but the thickness of the display device at the peripheral area increases due to various elements disposed facing the back surface
Solution Approach 1:
The patent utilizes the thickness direction to separate the circuit board into overlapping and non-overlapping areas relative to the display panel, allowing peripheral elements to be arranged in the non-overlapping second area without increasing the device thickness at the peripheral area
Solution Approach 2:
The first area of the circuit board overlaps with the display panel in the thickness direction, nesting the circuit board structure within the existing display panel volume rather than extending the peripheral area outward
Data Source
AI summary
A display device including a display panel, a circuit board connected to the display panel, and a flexible circuit film which connects the display panel to the circuit board, the flexible circuit film being bendable. The circuit board includes an electronic component, a first area at which the circuit board is connected to the flexible circuit film, and a second area which is adjacent to the first area and corresponds to the electronic component. The flexible circuit film which is bent disposes the first area of the circuit board overlapping the display panel, together with both the second area of the circuit board and the electronic component non-overlapping the display panel, along a thickness direction of the display device.