Dummy-Pixel Non-Display Areas for Camera and Sensor Integration

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Solution Overview

Problem

Existing display apparatuses face challenges in integrating additional functionalities such as cameras and sensors within the display area without compromising the display performance, particularly due to the need for miniaturization and bending capabilities.

Innovation Solution

Incorporation of dummy pixels in non-display areas that do not emit light, connected via emission control and power supply lines, along with driver circuits and data lines, to facilitate the integration of electronic elements like cameras and sensors while maintaining display functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional functionalities such as cameras and sensors are integrated within the display area, then the versatility of the display apparatus is enhanced, but the display performance may be compromised due to space constraints and miniaturization requirements

Engineering Contradiction:
ImproveversatilityVSAvoiddisplay performance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The display area is segmented into active display regions and non-display areas, allowing different functionalities to be distributed across different zones. Electronic elements like cameras and sensors are placed in non-display areas, while dummy pixels are strategically positioned to maintain display performance in active regions without compromising versatility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes the vertical dimension by implementing multiple layers including pixel circuits, emission layers, and non-display areas at different heights. This multi-layered approach allows electronic elements to be integrated in three-dimensional space without interfering with the two-dimensional display performance, thereby enhancing versatility while maintaining reliability.

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

2Area of moving object

If the display unit is miniaturized to support various functions, then the proportion of the display unit in the electronic apparatus increases, but the structural integrity and bending capabilities become more challenging to maintain

Engineering Contradiction:
Improvedisplay unit proportionVSAvoidstructural integrity
Core Design Contradiction:
Area of moving objectVSStrength

Solution Approach 1:

The patent employs flexible substrates and thin-film structures for the display unit, allowing it to maintain structural integrity while being miniaturized. The use of flexible materials enables the display to bend at predetermined angles without compromising strength, supporting various functions while increasing the display unit's proportion in the electronic apparatus.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The display structure is designed with dynamic characteristics, allowing it to bend and flex at predetermined angles. This dynamic design enables the miniaturized display unit to maintain structural integrity under various mechanical stresses while supporting multiple functions, thereby increasing its proportion in the electronic apparatus without sacrificing strength.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If dummy pixels are added in non-display areas to facilitate integration of electronic elements, then the versatility is improved, but the device complexity increases due to additional emission control lines and power supply lines

Engineering Contradiction:
Improveintegration capabilityVSAvoidline complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the functionality of dummy pixels with the integration of electronic elements in non-display areas. By combining the roles of dummy pixels (which maintain display performance) with the housing of electronic elements (cameras, sensors), the design reduces overall complexity. Emission control lines and power supply lines are routed to serve both the dummy pixels and the electronic elements, thereby improving integration capability without proportionally increasing line complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12446308B2Display apparatus including dummy pixels in a non-display area
Publication Date: 2025.10.14 SAMSUNG DISPLAY CO LTD
  • US12446308B2 patent drawing
  • US12446308B2 patent drawing
  • US12446308B2 patent drawing

AI summary

A display apparatus includes: a substrate including: a first region; a second region; a first non-display area surrounding the first region and the second region; and a display area surrounding at least a portion of an outline of the first non-display area; a plurality of dummy pixels at the first non-display area, and to not emit light; a plurality of emission control lines connected to at least one of the plurality of dummy pixels; and a plurality of power supply lines to supply a driving voltage to the plurality of dummy pixels, respectively. One of the plurality of power supply lines is electrically connected to one of the plurality of emission control lines, and one of the plurality of power supply lines is connected to one of the plurality of dummy pixels.