Liquid Crystal Panel Incident Light Control Area for Camera Integration

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Solution Overview

Problem

Electronic devices with integrated liquid crystal panels and cameras face challenges in capturing clear images due to the interference of light from the liquid crystal panel's illumination area with the camera's light-sensitive components.

Innovation Solution

The electronic device incorporates a liquid crystal panel with an incident light control area that includes an annular line and control electrodes, allowing light to be selectively passed through to the camera while maintaining image display functionality, using a configuration that includes a display area, a non-display area, and a light-shielding layer to manage light transmission effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the liquid crystal panel and camera are located on the same surface side, then the device integration is improved, but light from the illumination area interferes with the camera's light-sensitive components

Engineering Contradiction:
Improvedevice integrationVSAvoidlight interference
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The liquid crystal panel is divided into a display area and an incident light control area. The incident light control area is further segmented into multiple regions with different light transmissivity characteristics, allowing selective control of light transmission to the camera while maintaining display functionality in other areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the liquid crystal panel are assigned different optical properties. The incident light control area has specific light transmissivity characteristics that allow controlled light passage to the camera, while the display area maintains its display optimization. This local differentiation resolves the conflict between integration and light interference.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If the incident light control area uses multiple annular lines and control electrodes, then light transmission control precision is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvelight transmission control precisionVSAvoidstructure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Multiple annular lines and control electrodes are integrated into a unified control structure within the incident light control area. The control electrodes are arranged in specific patterns that combine multiple functions into a single integrated system, achieving precise light transmission control without proportionally increasing structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The control structure extends into the vertical dimension with multiple layers of electrodes and insulating films. This three-dimensional arrangement allows precise control of light transmission through stacked configurations, achieving high precision control while compactly organizing the complex structure in the vertical direction.

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

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 configuration enables clear image capture by the camera while ensuring optimal light transmission for the liquid crystal panel's display area, enhancing the device's ability to control light transmissivity and improve image quality.

Implementation Method 1

The liquid crystal panel includes a display area and an incident light control area. The camera overlaps the incident light control area. The incident light control area includes an annular line and a control electrode connected to the annular line.

Methodology Applied
Scientific EffectLiquid crystal optical modulation: Liquid Crystals

Data Source

PatentUS11789321B2Electronic device
Publication Date: 2023.10.17 MAGNOLIA WHITE CORP
  • US11789321B2 patent drawing
  • US11789321B2 patent drawing
  • US11789321B2 patent drawing

AI summary

According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area and an incident light control area. The camera overlaps the incident light control area. The incident light control area includes an annular line and a control electrode connected to the annular line. The annular line includes a first annular line and a second annular line disposed to be in contact with an inside of the first annular line.