Double-Sided Display With Sliding Housings And Flexible Screens

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Solution Overview

Problem

Existing double-sided display devices have limited flexibility in adjusting screen area and a restricted application range, only allowing for full or half screen usage.

Innovation Solution

A double-sided display device with a housing comprising sliding first and second housings, each equipped with a flexible screen that can be wound and unwound to adjust the display area, driven by a flexible screen drive part and a housing drive part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single flexible screen is used with bending structure, then the screen area can be adjusted between full and half display, but the flexibility and application range are limited

Engineering Contradiction:
Improvescreen area adjustment flexibilityVSAvoidhousing structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The housing is divided into first and second housings that can slide relative to each other, and the flexible screen is segmented into display portion and wound portion. This segmentation allows independent control of display area by sliding the housings, enabling multiple display configurations beyond simple half/full display.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic adjustment of display area through sliding mechanisms that allow the housings to move relative to each other. The flexible screen dynamically transitions between displayed and wound states based on the sliding position, enabling continuous adjustment of display area rather than fixed configurations.

Inventive Principle:
Principle #15Dynamics

2Area of moving object

If the flexible screen is wound in the housing, then the display area is reduced, but the mechanism for controlling winding and unwinding increases device complexity

Engineering Contradiction:
Improvedisplay areaVSAvoidscreen drive mechanism complexity
Core Design Contradiction:
Area of moving objectVSDevice complexity

Solution Approach 1:

The housing drive part and flexible screen drive part are integrated into a unified system where the sliding of housings simultaneously controls both the mechanical configuration and the screen winding/unwinding. This merging reduces the need for separate control mechanisms and simplifies the overall drive system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flexible screen drive part automatically winds or unwinds the screen based on the sliding motion of the housings. The system self-regulates the screen configuration according to the housing position, eliminating the need for independent control mechanisms and reducing overall device complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4006887B1Double-sided display apparatus
Publication Date: 2025.04.09 WINGTECH TECH (SHENZHEN) CO LTD
  • EP4006887B1 patent drawingFigure 1
  • EP4006887B1 patent drawingFigure 2
  • EP4006887B1 patent drawingFigure 3

AI summary

A double-sided display device belongs to the technical field of display, and includes a housing (1) including a first housing (11) and a second housing (12) slidingly connected with the first housing (11); a first flexible screen (2) having a first display surface facing one side, one end of the first flexible screen (2) being connected in the first housing (11) and the other end being wound in the second housing (12); a second flexible screen (3) arranged opposite to the first flexible screen (2) and having a second display surface facing the other side, one end of the second flexible screen (3) being fixed in the second housing (12), and the other end being wound in the first housing (11); and a flexible screen drive part (5), the flexible screen drive part (5) being configured for driving winding parts of the first flexible screen (2) and the second flexible screen (3) to wind when the second housing (12) slides relative to the first housing (11), so as to change a display area.