Screen frame and laser projection display device

Solution Overview

Problem

Current laser projection screens face challenges in accurate alignment and efficient assembly due to difficulties in aligning connectors and side frames, leading to potential misplacement and uneven seams, which complicates the assembly process and reduces user experience.

Innovation Solution

A screen frame design featuring side frames connected by connectors with telescopic engaging members and receiving grooves, allowing for easy positioning and snapping into place, facilitated by fasteners, enabling efficient assembly even for users without experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional connectors and side frames are used without positioning features, then the assembly structure is simple, but accurate alignment and efficient assembly cannot be achieved

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The connector is pre-provided with an engaging member (such as a positioning protrusion or guide feature) before assembly occurs. This preliminary feature guides the connector into proper alignment with the receiving groove on the side frame, enabling accurate positioning and efficient assembly without requiring complex alignment procedures during the assembly process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The engaging member on the connector acts as an intermediary element that mediates between the connector and the side frame. It facilitates the connection by providing a predefined interface (such as a positioning protrusion that fits into a corresponding groove or hole) that enables accurate alignment and simplifies the assembly process, allowing users without experience to assemble the screen frame easily.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If connectors require precise manual alignment, then assembly can be accurate, but the assembly process becomes complicated and time-consuming

Engineering Contradiction:
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The connector is designed with self-aligning features such as engaging members (positioning protrusions, guide edges, or snap-fit elements) that automatically guide the connector into correct alignment with the side frame's receiving groove during assembly. This self-service mechanism eliminates the need for manual measurement and adjustment, ensuring accurate alignment while simplifying the assembly process for users of any skill level.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10918228B2Screen frame and laser projection display device
Publication Date: 2021.02.16
  • US10918228B2 patent drawing
  • US10918228B2 patent drawing
  • US10918228B2 patent drawing

AI summary

Provided are a screen frame and a laser projection display device. The screen frame includes a plurality of side frames that are connected end to end, where a joint of each two of the plurality of side frames is provided with at least two connectors and receiving grooves corresponding to the at least two connectors in a one to one manner, and the at least two connectors have inserting portions extendable into the receiving grooves, at least one inserting portion of the inserting portions is provided with a telescopic engaging member, and a side wall of a receiving groove which is corresponding to an inserting portion having the engaging member is provided with a receiving hole corresponding to the engaging member; the engaging member is configured to extend into the receiving hole for positioning; and the inserting portions are connected to side walls of the receiving grooves by fasteners.