Display Module Circuit Board Layout for Narrow Side Bezels
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Solution Overview
Problem
Display modules have wide side bezels due to the placement of driving chips and flexible printed circuits, which affect the visual effect.
Innovation Solution
The display module design includes a driving circuit board with a receiving structure that allows the driving chip to pass through an opening in the circuit board body, reducing the bezel width by optimizing the placement of the driving chip and flexible printed circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving chip and flexible printed circuit are placed on the side bezel area, then the driving function is achieved, but the side bezel width increases affecting visual effect
Solution Approach 1:
The patent moves the driving chip from the traditional side bezel placement to a position that passes through the circuit board body via a receiving structure. This spatial reconfiguration in the thickness dimension allows the driving chip to be positioned within or through the circuit board rather than occupying side bezel space, thereby reducing the side bezel width while maintaining driving functionality
Solution Approach 2:
The receiving structure is formed within the circuit board body, creating a nested configuration where the driving chip is housed inside or passes through the circuit board structure. This nesting approach integrates the driving chip into the existing circuit board volume, eliminating the need for additional side bezel space
Data Source
AI summary
A display module includes a display panel, a driving circuit board, a flexible printed circuit and a driving chip. The driving circuit board includes a circuit board body and at least one bonding component. The circuit board body has a first main surface and a second main surface opposite to each other. A bonding component is located on the first main surface. The circuit board body is provided with at least one receiving structure therein. A receiving structure has at least an opening in the first main surface. The driving chip is installed on the flexible printed circuit, and is located on a side of the flexible printed circuit proximate to the driving circuit board. An orthographic projection of the driving chip on a first reference plane is located inside an orthographic projection of the opening on the first reference plane.