Transparent Display Camera Shutter Synchronization

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Solution Overview

Problem

Image capturing apparatuses face interference due to light-leakage properties at the bottom surface of transparent display panels, preventing clear image capture.

Innovation Solution

The apparatus synchronizes the shutter time of a camera with the period when the transparent display panel displays a black image, ensuring the camera captures images during periods when the panel is in a transmissive state, either through simultaneous emission with active voltage (SEAV) or progressive emission (PE) driving modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the camera continuously captures images through the transparent display panel, then image capture frequency is improved, but image quality deteriorates due to light-leakage interference from the display panel

Engineering Contradiction:
Improveimage capture frequencyVSAvoidimage quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The display panel alternates between displaying images and displaying black screens at regular intervals. The camera captures images only during the black screen periods when light leakage is minimized, creating a periodic capture pattern that eliminates interference while maintaining continuous operation

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system预先 schedules the black screen periods and synchronizes camera capture timing in advance. The driver controls the display panel to enter black screen mode before the camera captures images, ensuring optimal capture conditions are prepared beforehand

Inventive Principle:
Principle #10Preliminary action

2Illumination intensity

If the display panel continuously emits light to maintain visibility, then display performance is improved, but image capture quality deteriorates due to ongoing light-leakage interference

Engineering Contradiction:
Improvedisplay brightnessVSAvoidimage capture quality
Core Design Contradiction:
Illumination intensityVSManufacturing precision

Solution Approach 1:

The display panel operates in periodic cycles, alternating between bright display mode and black screen mode. During black screen periods, the panel stops emitting light to eliminate interference with camera capture, while maintaining overall display functionality through continuous cycling

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The display panel dynamically adjusts its emission state based on operational requirements. It switches between high brightness for display visibility and zero brightness for camera capture, adapting its illumination characteristics in real-time according to the current operational phase

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach allows for clear image capture without interference, improving image quality and reducing software correction time for light-leakage issues, enabling smoother video telephony and enhanced image resolution.

Implementation Method 1

synchronizing a shutter time with a period when the transparent displays panel display a black image

Methodology Applied
Scientific EffectLight blocking: Absorption (EM radiation)

Data Source

PatentUS10057541B2Image-capturing and display apparatus and photographing method using the same
Publication Date: 2018.08.21 SAMSUNG DISPLAY CO LTD
  • US10057541B2 patent drawing
  • US10057541B2 patent drawing
  • US10057541B2 patent drawing

AI summary

In an image capturing apparatus and a photographing method using the same, the image capturing apparatus comprises: a transparent display panel; and a camera facing a bottom surface of the transparent display panel for synchronizing a shutter time with a period when the transparent display panel displays a black image, and for capturing an image positioned in front of the transparent display panel, thereby capturing a clear image without interference between images due to light-leakage property.