Non-Planar Substrate Display Device for Curved Surface Design

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Solution Overview

Problem

Conventional display devices are limited by flat substrates, restricting their appearance design and display region, which hinders the ability to display images on non-planar surfaces.

Innovation Solution

The use of at least one non-planar substrate in a display device, where one substrate is curved and includes color filters and the other is a thin film transistor substrate, allowing for the accommodation of a liquid crystal layer and enabling image display on both flat and curved surfaces, along with the option of integrating a touch module or organic light emitting diodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If flat substrates are used in display devices, then the manufacturing process is simple and reliable, but the appearance design is restricted and the display region is limited to flat surfaces

Engineering Contradiction:
Improveappearance design flexibilityVSAvoidsubstrate structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies curvature to the substrate by providing a non-planar support substrate (e.g., curved or spherical surfaces) that enables the display device to be mounted on non-planar surfaces. This resolves the contradiction by allowing appearance design flexibility through curved substrates while maintaining manufacturing feasibility through adapted mounting structures.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent transitions from two-dimensional flat substrates to three-dimensional non-planar substrates by providing support substrates with curvature in the third dimension. This enables the display device to conform to curved surfaces and expand design possibilities while maintaining structural integrity through proper substrate support.

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

2Area of stationary object

If flat substrates are used, then the structural integrity is maintained, but the display region is restricted to flat surfaces only

Engineering Contradiction:
Improvedisplay region areaVSAvoidsubstrate shape
Core Design Contradiction:
Area of stationary objectVSShape

Solution Approach 1:

The patent uses non-planar support substrates with curved surfaces to expand the display region beyond flat surfaces. The curved substrates enable the display device to be mounted on non-planar surfaces such as vehicle windshields or curved panels, thereby increasing the effective display area while adapting to various shape requirements.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent creates a universal display device structure that can function on both flat and curved surfaces by providing a flexible mounting system with non-planar support substrates. This multi-functional design allows the same display device to be adapted to different surface geometries, expanding its application scope and display region.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If non-planar substrates are used, then appearance design flexibility and display region are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvedisplay design versatilityVSAvoidsubstrate manufacturing ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent provides non-planar support substrates with predetermined curvature that can be manufactured using standard glass bending or forming techniques. The curvature is integrated into the substrate design rather than requiring complex post-processing, thereby maintaining ease of manufacture while achieving the desired appearance design flexibility and expanded display region.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent incorporates the non-planar shape directly into the substrate manufacturing process by pre-forming the curved surfaces during substrate production. This preliminary action eliminates the need for complex post-manufacturing shaping operations, thereby reducing manufacturing complexity while achieving the desired non-planar geometry for enhanced design versatility.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9721746B2Display device and method for manufacturing the same
Publication Date: 2017.08.01 G TECH OPTOELECTRONICS CORP
  • US9721746B2 patent drawing
  • US9721746B2 patent drawing
  • US9721746B2 patent drawing

AI summary

Display device includes a display panel. The display panel includes a first substrate, a sealant, and, a second substrate fastended to the first substrate via the sealant. At least one of the first substrate and the second substrate is a non-planar substrate including at least two portions correspondingly extending in different planes.