Flexible Display Module Multi-Directional Wire Routing

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Solution Overview

Problem

The display areas of existing wearable devices are small, making them inadequate for effective touch operations by users.

Innovation Solution

A display module comprising a flexible OLED display screen and a flexible printed circuit board, where the display screen has sides electrically connected in different directions to the circuit board, allowing wires to be led out from both sides, reducing the peripheral area and expanding the display area, improving concentricity and heat dissipation, and enhancing user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If wires are led out from one side of the display screen, then the connection is simple, but the peripheral area is large and the display area is reduced

Engineering Contradiction:
Improvedisplay areaVSAvoidconnection structure
Core Design Contradiction:
Area of moving objectVSDevice complexity

Solution Approach 1:

The patent transitions from a single-sided wire connection to a multi-directional connection structure. Wires are led out from both the first side and the second side of the display screen in different directions, utilizing spatial dimensionality to reduce the peripheral area occupied by wires and increase the display area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The connection structure is segmented into multiple independent wire paths. Instead of all wires exiting from one side, the wires are divided into groups that exit from different sides of the display screen, distributing the connection load and reducing peripheral area occupation.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If wires are concentrated on one side, then the connection is simple, but the concentricity is poor and heat dissipation is affected

Engineering Contradiction:
ImproveconcentricityVSAvoidwire layout
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent employs asymmetric wire distribution where wires are strategically positioned on different sides of the display screen rather than symmetrically concentrated on one side. This asymmetric layout improves concentricity by balancing the weight and thermal distribution around the display center.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

Different regions of the display module are assigned different wire connection qualities. Wires are led out from specific sides based on local requirements for heat dissipation and concentricity, rather than using a uniform connection approach throughout.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12089324B2Display module and wearable device
Publication Date: 2024.09.10 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12089324B2 patent drawing
  • US12089324B2 patent drawing
  • US12089324B2 patent drawing

AI summary

The disclosure provides a display module and a wearable device. The display module includes a flexible display screen and a flexible printed circuit board. The flexible display screen includes a first side in a first direction and a second side in a second direction, the first side and the second side being each electrically connected to the flexible printed circuit board; and the flexible printed circuit board includes a first functional circuit and a second functional circuit, the first side being connected to the first functional circuit, and the second side being connected to the second functional circuit. The first direction is different from the second direction.