Display Panel Front Frame and PCB Shell Structural Integration
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Solution Overview
Problem
Display panels with extreme aspect ratios, such as 20:1 to 24:1, face challenges in maintaining stability and strength due to their elongated shape, which can lead to structural weaknesses and potential damage from external forces.
Innovation Solution
The display panel incorporates a front frame engaged with a printed circuit board protective shell, featuring a bending design in the connecting plates and reinforcing ribs on the backplane, along with an optimized screw arrangement to enhance structural integrity, and a closed, continuous I-shaped reinforcing rib structure in the printed circuit board protective shell to secure the front frame and backplane, ensuring stability and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display panel uses an extreme aspect ratio (20:1 to 24:1), then the display panel achieves a large screen area and meets market demands, but the structural strength and stability deteriorate due to the elongated shape
Solution Approach 1:
The front frame is divided into multiple segments including first and second front frame portions extending in the length direction, and third and fourth front frame portions extending in the width direction. This segmentation allows each portion to be optimized independently for strength while maintaining the overall large aspect ratio structure.
Solution Approach 2:
The connecting plates incorporate bending designs with specific bent depths (1.4 mm) to create curved structural elements. These curved portions enhance the structural strength by distributing stress more effectively compared to straight rigid connections, particularly important for maintaining stability in the elongated display panel.
2Area of stationary object
If the display panel uses an extreme aspect ratio (20:1 to 24:1), then the display panel achieves a large screen area and meets market demands, but the stability deteriorates due to the elongated shape
Solution Approach 1:
The front frame is integrated with the printed circuit board protective shell through engagement structures including first and second connecting plates that extend toward the protective shell. This merging of structural components creates a unified assembly that enhances overall stability. Additionally, the backplane connects to both the front frame and middle frame, further consolidating the structural integrity of the entire display panel assembly.
Solution Approach 2:
The bending design in the connecting plates with optimized bent depths creates curved engagement structures that provide better mechanical interlocking between the front frame and protective shell. These curved portions resist deformation more effectively than straight connections, maintaining stability in the elongated structure.
3Strength
If reinforcing structures are added to enhance strength, then the structural strength improves, but the device complexity increases
Solution Approach 1:
The connecting plates serve multiple functions: they connect the front frame to the protective shell, provide structural reinforcement through their bending design, and facilitate assembly through engagement structures. The backplane similarly serves as both a support structure and a connection element between the front frame and middle frame. This multi-functionality reduces the need for separate reinforcing components.
Solution Approach 2:
The reinforcing structure utilizes the width direction dimension by incorporating third and fourth front frame portions that extend perpendicular to the main length direction. This three-dimensional framing approach provides structural support without adding excessive complexity in the primary plane, effectively distributing stresses across multiple dimensions.
Data Source
AI summary
A display panel includes: a front frame and a printed circuit board protective shell. The front frame includes a first front frame portion and a second front frame portion extending in a length direction of the display panel; and a third front frame portion and a fourth front frame portion extending in a width direction of the display panel; wherein the first front frame portion and the second front frame portion are disposed oppositely; and the third front frame portion and the fourth front frame portion are disposed oppositely, and connected between the first front frame portion and the second front frame portion. The printed circuit board protective shell is engaged with the first front frame portion and the second front frame portion to form an integral structure.