Three-Foldable Display Camera Preview Control

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Solution Overview

Problem

The challenge lies in determining the optimal locations for cameras with different resolutions on a three-foldable display device and controlling the preview interface effectively when either camera is activated, especially when the cameras are located on the same side of the device, as existing technologies do not clearly define these aspects.

Innovation Solution

A three-foldable display device is designed with a processor that controls the cameras and screens, where the first camera with higher resolution is placed on one body and the second camera with lower resolution on another, and the processor determines the screen for displaying the preview interface based on the activated camera, ensuring efficient use of screen area according to the image resolution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If two cameras with different resolutions are located on the same side of the display device, then the device structure is simplified and manufacturing is easier, but it becomes unclear where to locate the cameras and how to display preview interfaces

Engineering Contradiction:
Improvecamera placement simplicityVSAvoidcamera location definition
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent applies local quality by assigning different functions to different regions of the display device. The first camera (high resolution) is placed in a first region and its preview is displayed in a first area, while the second camera (low resolution) is placed in a second region with its preview displayed in a second area. This regional differentiation resolves the ambiguity of camera placement and preview display locations when cameras are on the same side.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If high resolution camera images are displayed on large screen areas, then image quality is improved, but screen space for other functions is reduced

Engineering Contradiction:
Improveimage resolution qualityVSAvoidavailable screen area
Core Design Contradiction:
Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent segments the display screen into multiple independent preview areas. The first preview area displays images from the first camera and the second preview area displays images from the second camera. This segmentation allows high resolution images to be displayed in dedicated areas without occupying the entire screen, thus preserving screen space for other functions while maintaining image quality.

Inventive Principle:
Principle #1Segmentation

3Area of stationary object

If low resolution camera images are displayed on small screen areas, then screen space is preserved for other functions, but image quality deteriorates

Engineering Contradiction:
Improveavailable screen areaVSAvoidimage resolution quality
Core Design Contradiction:
Area of stationary objectVSMeasurement precision

Solution Approach 1:

The patent applies local quality by matching camera resolution with appropriate display areas. The second camera (low resolution) displays its preview in a second area that is smaller than the first area, which is appropriate for low resolution content. This prevents waste of screen space while maintaining acceptable image quality for the intended use case.

Inventive Principle:
Principle #3Local quality

4Ease of operation

If the preview interface location is dynamically controlled based on activated camera, then user convenience is improved, but control complexity increases

Engineering Contradiction:
Improvepreview display convenienceVSAvoidprocessor control logic
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by pre-defining the correspondence between cameras and preview display areas. The processor is configured to display the first camera's preview in the first area and the second camera's preview in the second area. This predetermined arrangement simplifies the control logic while still providing dynamic adaptation based on which camera is activated, improving user convenience without excessive complexity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9013458B2Display device and method for controlling the same
Publication Date: 2015.04.21 LG ELECTRONICS INC
  • US9013458B2 patent drawing
  • US9013458B2 patent drawing
  • US9013458B2 patent drawing

AI summary

A display device and a method for controlling the same are disclosed. More specifically, a three-foldable display device and a method for controlling the same are disclosed, wherein the three-foldable display device has two cameras at previously set locations with different resolutions different from each other and controls a location for providing a preview interface in accordance with an activated one of the two cameras.