Interactive Board Frame Design for Narrow Bezel and High Display Ratio
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Solution Overview
Problem
Current interactive intelligent boards have a wide frame and a smaller effective display area ratio due to the need for a fixing support and middle frame to prevent direct contact between the touch display assembly and optical diaphragm, which affects visual and user experience.
Innovation Solution
The solution involves a frame with a first and second fixing part to secure the touch display assembly and optical diaphragm respectively, eliminating the need for a large adhesive area and middle frame, and incorporating a diffuser plate and luminous assembly to enhance display uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixing support and adhesive bonding are used to secure the glass cover plate, then the glass cover plate is prevented from detachment, but the frame width increases and the effective display area ratio decreases
Solution Approach 1:
The patent extracts and removes the traditional fixing support structure from the design. Instead of using a separate fixing support component, the glass cover plate is directly secured to the frame through adhesive bonding applied at specific positioning areas on the frame's inner wall, eliminating the need for additional structural elements that would consume display area.
Solution Approach 2:
The patent merges the functions of the frame and the fixing support into a single integrated structure. The frame's inner wall directly provides the positioning and fixation function through adhesive bonding areas, combining the structural support and fixation functions that were previously separated into distinct components.
2Reliability
If a middle frame is added to protect the touch display assembly and press the optical diaphragm, then the components are protected and positioned, but the frame width increases and black bands appear affecting visual effects
Solution Approach 1:
The patent extracts and removes the middle frame component from the design. The touch display assembly is protected through alternative means such as precise positioning structures and adhesive bonding arrangements that eliminate the need for an additional protective frame, thereby removing the source of visual black bands.
Solution Approach 2:
Instead of adding a middle frame to protect the touch display assembly from above, the patent inverts the protection approach by using the frame's inner wall structure and adhesive positioning to provide protection from the sides and through precise mechanical restraint, eliminating the need for the traditional middle frame configuration.
3Reliability
If positioning columns are riveted on the backplane to secure the optical diaphragm, then the optical diaphragm is prevented from displacement, but the device complexity and assembly steps increase
Solution Approach 1:
The patent extracts and removes the positioning columns and riveting mechanism from the design. The optical diaphragm is secured through adhesive bonding applied to the frame's inner wall, eliminating the need for mechanical positioning columns and riveting operations, thereby simplifying the overall assembly structure.
Solution Approach 2:
The patent replaces the mechanical riveting system with an adhesive bonding system. Instead of using positioning columns and rivets to secure the optical diaphragm, the invention uses adhesive material applied to specific areas of the frame's inner wall to provide both positioning and fixation, substituting a complex mechanical system with a simpler chemical bonding approach.
Data Source
AI summary
The present disclosure relates to an interactive intelligent board with a first fixing part and a second fixing part spaced apart on an inner wall of the frame. The touch display assembly is fixedly arranged on the first fixing part, while an optical diaphragm, a diffuser plate, a luminous assembly, and a backplane are successively fixedly arranged on a side of the second fixing part away from the first fixing part. The present disclosure avoids a need of a large adhesive area and the need for adding a middle frame for isolation, thereby reducing the frame width and increasing an effective display area ratio.