Electro-Optical Display Structure for Camera Light Shielding

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Solution Overview

Problem

Light emitted from the backlight unit of an electro-optical device leaks towards the camera module, degrading its performance.

Innovation Solution

The electro-optical device incorporates a transparent region with a bezel and a cap made of different materials, where the bezel covers the lower side of the backlight unit and the cap covers the lateral side, preventing light leakage to the camera module.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the camera module is mounted in the electro-optical device with the backlight unit provided below the panel, then the camera module can be integrated into the device structure, but light emitted from the backlight unit leaks toward the camera module causing degradation of camera characteristics

Engineering Contradiction:

Improveintegration of camera moduleVSAvoidlight leakage to camera module

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

A light-shielding member is introduced as an intermediary component between the backlight unit and the camera module. This member specifically blocks light from reaching the camera module while allowing the backlight to illuminate the display area, thus resolving the contradiction between integration and light leakage prevention

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The electro-optical device is segmented into distinct functional zones: a display region with the backlight unit and panel, and a transparent region with the camera module. The light-shielding member creates a clear separation between these zones, preventing harmful light interaction while maintaining both functions

Inventive Principle:

Principle #1Segmentation

2Reliability

If a light-shielding member is added to prevent light leakage, then camera module performance is improved, but device structure becomes more complex

Engineering Contradiction:

Improvecamera module performanceVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The light-shielding member is merged with existing structural components of the electro-optical device, such as the bezel or frame structure. By combining the light-shielding function with existing structural elements rather than adding a completely separate component, the design prevents light leakage while minimizing increases in structural complexity

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12443063B2Electro-optical device and electronic equipment

Publication Date: 2025.10.14 MAGNOLIA WHITE CORP

AI summary

A display device which is an electro-optical device includes a panel including a first substrate, a second substrate, and a liquid crystal layer and having a display region, a transparent region provided inside the display region, and a frame region provided between the transparent region and the display region. A backlight unit is provided below the panel so as not to overlap with the transparent region. A bezel is provided below the backlight unit so as not to overlap with the transparent region. A cover member is provided above the second substrate so as to overlap with the transparent region. Also, a cap film made of a material different from that of the bezel covers at least a lateral side of the backlight unit in the frame region.