Flexible Display Panel With Segmented Curved-Surface Regions

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Solution Overview

Problem

Existing display devices lack the ability to provide versatile and intuitive display capabilities on non-planar surfaces, such as curved surfaces, and often suffer from power inefficiencies and structural instability when bent.

Innovation Solution

A display panel with a flexible substrate and multiple display regions, including a first, second, and third display region, each aligned along different sides of a housing with curved surfaces, and utilizing oxide or polycrystalline silicon transistors to maintain functionality and reduce power consumption, along with a driver circuit system to manage signal output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible substrate with multiple display regions is used to enable curved surface display, then display versatility is improved, but device complexity increases

Engineering Contradiction:
Improvedisplay versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display panel is divided into multiple independent display regions (first, second, third display regions) that can be independently controlled by separate driver circuits. This segmentation allows each region to be optimized for specific functions while maintaining overall system flexibility and adaptability to curved surfaces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention extends display from traditional flat 2D surfaces to curved 3D surfaces by wrapping the flexible substrate around curved housing surfaces. This dimensional transition enables display on side surfaces and creates immersive viewing experiences while maintaining image quality across varying angles.

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

2Use of energy by moving object

If oxide or polycrystalline silicon transistors are used to reduce power consumption, then energy efficiency is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvepower consumptionVSAvoidmanufacturing precision
Core Design Contradiction:
Use of energy by moving objectVSManufacturing precision

Solution Approach 1:

The patent employs oxide semiconductor transistors and polycrystalline silicon transistors which have fundamentally different electrical characteristics from conventional transistors. These materials enable ultra-low leakage current and high on/off ratios, dramatically reducing power consumption while maintaining stable operation across the flexible substrate's varying conditions.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If the substrate is designed with a notch portion to accommodate curved surfaces, then adaptability to curved surfaces is improved, but structural stability may worsen

Engineering Contradiction:
Improvecurved surface adaptabilityVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The invention uses a flexible substrate that can be bent and conform to curved surfaces without cracking or delaminating. The flexible nature of the substrate allows it to absorb mechanical stress from bending while maintaining the integrity of the integrated circuits and display elements, thus preserving structural stability during curvature transitions.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS20250284447A1Display panel and electronic device
Publication Date: 2025.09.11 SEMICON ENERGY LAB CO LTD
  • US20250284447A1 patent drawing
  • US20250284447A1 patent drawing
  • US20250284447A1 patent drawing

AI summary

An electronic device including a housing, a display panel with a flexible substrate, and a flexible printed circuit, in which the housing comprises a flat surface and a side surface comprising a curved region, the display panel comprises a first region that overlaps with the flat surface and a second region that overlaps with the side surface, the display panel comprises a convex portion that comprises a region overlapping with a flexible printed circuit, and the display panel comprises a display portion in the first region and the second region.