Flexible Bank Design for Display Panel Fixing
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Solution Overview
Problem
Display devices with narrow frame designs experience light leakage and uneven brightness due to the limited intervals between the plastic frame and the display panel, which are exacerbated by thermal expansion and contraction, leading to suboptimal display effects.
Innovation Solution
A display module design featuring a supporting frame with a flexible bank that protrudes from the sidewall, having slits and a hole to reduce lateral pressure on the display panel, thereby minimizing light leakage and stress caused by thermal changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the plastic frame is used to fix the display panel, then the display panel is securely fixed, but light leakage and uneven brightness occur due to lateral pressing force
Solution Approach 1:
The supporting frame is segmented into a rigid sidewall portion and a flexible bank portion. The bank is separated from the sidewall by a gap, allowing it to move independently. This segmentation enables the frame to provide both stable fixing and accommodate panel expansion/contraction without generating harmful lateral pressing forces that cause light leakage.
Solution Approach 2:
The bank is designed as a dynamic component that can move outward relative to the sidewall. When the display panel expands due to temperature changes, the bank moves outward to accommodate the expansion, reducing lateral pressing force. This dynamic adjustment prevents light leakage while maintaining fixing stability.
2Area of stationary object
If the narrow frame design is used to increase display area, then the space occupied by frames is reduced, but the interval between frame and panel becomes even smaller, worsening light leakage
Solution Approach 1:
The supporting frame is divided into a fixed sidewall and a movable bank separated by a gap. This segmentation allows the bank to move outward when needed, providing sufficient clearance even in narrow frame designs. The display area can be maximized while the bank's movement capability prevents light leakage by accommodating panel expansion without excessive lateral pressing.
Solution Approach 2:
The bank is designed with flexible characteristics, allowing it to deform and move outward. This flexibility enables the narrow frame design to maintain adequate intervals between the frame and panel during thermal expansion, preventing light leakage while maximizing the display area.
3Strength
If the rigid frame structure is used to maintain structural strength, then the frame provides stable support, but stress on the display panel increases due to thermal expansion and contraction
Solution Approach 1:
The supporting frame is segmented into a rigid sidewall for structural strength and a flexible bank for stress relief. The gap between them allows the bank to move independently, accommodating thermal expansion and contraction of the display panel. This reduces stress on the panel while the sidewall maintains overall frame strength.
Solution Approach 2:
The bank's position parameter changes dynamically in response to thermal expansion. When the panel expands, the bank moves outward, changing the interval between the frame and panel. This parameter change accommodates thermal effects and reduces stress on the display panel while maintaining frame strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The flexible bank design reduces light leakage and stress on the display panel, enhancing the display's uniform brightness and reliability by minimizing contact between the supporting frame and the panel, thus improving the overall display performance.
Implementation Method 1
the bank has flexibility to move outward and can reduces lateral pressing force exerted on the display module by the supporting frame when the display panel is pressed by the supporting frame
Implementation Method 2
end surfaces of the display panel may be in contact with the plastic frame and further laterally pressed by the plastic frame when ambient temperature or internal temperature change due to the operation of the display device
Data Source
AI summary
A display module of the present invention is provided, which includes a supporting frame and a display panel. The supporting frame has a sidewall and a bank, wherein the bank protrudes from an outer side of a supporting surface of the sidewall toward a direction away from the supporting surface. Slits are formed at two sides of the bank by down-cutting, and a hole is formed on the sidewall below the bank. The display panel is disposed on the supporting frame; a bottom surface of the display panel is supported by the supporting surface, and the bank faces an end surface of the display panel.