Display Substrate Segmentation for Sensor Integration

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Solution Overview

Problem

Display devices face challenges in designing thinner and lighter forms while maintaining functionality and image quality, particularly in integrating additional features like sensors or cameras without compromising resolution or light transmittance.

Innovation Solution

A display device with a substrate featuring a first display area for primary image rendering and a second display area with embedded transmission areas for auxiliary functions, where the pixel structure and light transmittance are optimized to accommodate components like sensors or cameras, ensuring improved light transmittance and image quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a second display area with transmission area is added to integrate sensors or cameras, then functionality and versatility are improved, but device complexity increases

Engineering Contradiction:
ImprovefunctionalityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display device is divided into a first display area for main display and a second display area for auxiliary functions including transmission areas. This segmentation allows integration of sensors or cameras in the second display area without affecting the primary display functionality, thereby improving versatility while managing complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second display area serves multiple functions: it can display auxiliary information and simultaneously provide transmission areas for sensors or cameras. This multi-functionality approach allows a single structural addition to enhance versatility without requiring separate components for each function

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

2Measurement precision

If pixel density is increased to maintain resolution, then image quality is improved, but light transmittance decreases

Engineering Contradiction:
ImproveresolutionVSAvoidlight transmittance
Core Design Contradiction:
Measurement precisionVSIllumination intensity

Solution Approach 1:

Different display areas have different functional requirements. The first display area maintains high pixel density for quality display, while the second display area includes transmission areas with optimized pixel structures that prioritize light transmittance for sensor/camera functionality. Each area has locally optimized properties suited to its specific function

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Instead of uniformly increasing pixel density across the entire display, the patent applies high pixel density only where needed for quality display (first display area), while using a different pixel structure in the second display area that allows partial transmission. This partial application of high pixel density maintains overall resolution while preserving necessary light transmittance

Inventive Principle:
Principle #16Partial or excessive action

3Adaptability or versatility

If display area is expanded to include second display area, then functionality is improved, but manufacturing precision requirements increase

Engineering Contradiction:
ImprovefunctionalityVSAvoidmanufacturing precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The display device is divided into a first display area for main display and a second display area for auxiliary functions including transmission areas. This segmentation allows integration of sensors or cameras in the second display area without affecting the primary display functionality, thereby improving versatility while managing complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs different pixel structures in different display areas. The first display area uses a first pixel structure optimized for display quality, while the second display area uses a second pixel structure with transmission areas optimized for sensor/camera integration. This parameter change in pixel structure across different areas enables functional expansion while managing manufacturing complexity through standardized modular designs

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11288998B2Display device having a first display area and a second display area having a transmission area
Publication Date: 2022.03.29 SAMSUNG DISPLAY CO LTD
  • US11288998B2 patent drawing
  • US11288998B2 patent drawing
  • US11288998B2 patent drawing

AI summary

A display device includes: a substrate including a first display area and a second display area including a transmission area; first pixels in the first display area; and second pixels in the second display area, wherein a distance between a first sub-pixel from among the first pixels, the first sub-pixel being adjacent to a boundary area between the first display area and the second display area, and a second sub-pixel from among the second pixels, the second sub-pixel being adjacent to the boundary area, is set to a certain value.