Dimming Element Integrating Photoelectric Transducers in Display Region

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Solution Overview

Problem

In the design of small-size portable electronic terminals, there is a challenge in minimizing the frame region to maximize the display surface while accommodating elements like image-capturing devices and sensors, as existing display devices struggle to efficiently integrate these components without compromising display visibility and designability.

Innovation Solution

The proposed display device incorporates a structure with an array substrate, pixel, dimming element, and counter substrate, featuring a liquid crystal layer and linear polarizing plates, allowing for the integration of photoelectric transducers within the display region by controlling light transmissivity through the dimming element and pixel elements, thereby reducing the need for a large frame region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the frame region is minimized to maximize display surface, then display visibility and designability are improved, but there is insufficient space to accommodate image-capturing elements and sensors

Engineering Contradiction:

Improvedisplay surface areaVSAvoidintegration of photoelectric transducers

Core Design Contradiction:

Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent merges the display region and the frame region by placing photoelectric transducers (image-capturing elements and sensors) within the display region itself. This allows the frame region to be minimized or eliminated while still accommodating all necessary components, thereby resolving the contradiction between maximizing display surface area and maintaining adaptability for component integration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes the vertical dimension by stacking multiple functional layers (display elements, photoelectric transducers, sensors) within the display region. This three-dimensional arrangement allows multiple components to coexist in a limited area without compromising display surface area, effectively resolving the space constraint contradiction.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If photoelectric transducers are arranged in the frame region, then component integration is achieved, but the display surface area is reduced

Engineering Contradiction:

Improveintegration of photoelectric transducersVSAvoiddisplay surface area

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent combines the functions of the display region and frame region by integrating photoelectric transducers within the display region. This eliminates the need for a separate frame region, thereby maximizing display surface area while maintaining full component integration capability.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If a light-transmitting region is formed in the display region to accommodate elements, then component integration is enabled, but display quality may be compromised

Engineering Contradiction:

Improveintegration of photoelectric transducersVSAvoiddisplay quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies local quality by creating specific light-transmitting regions with controlled optical properties at precise locations within the display region. These localized modifications allow photoelectric transducers to be accommodated without affecting the overall display quality, as only specific areas have altered optical characteristics while the rest of the display maintains full functionality.

Inventive Principle:

Principle #3Local quality

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 a high-quality, full-color display with improved viewing-angle characteristics and allows for precise control of light transmissivity, enhancing designability and display quality while integrating photoelectric transducers within the display region.

Implementation Method 1

The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode

Methodology Applied

Scientific EffectElectro-optic effect: Electro-Optic Effects

Implementation Method 2

The first linear polarizing plate is located under the array substrate and overlaps with the pixel. The second linear polarizing plate is located over the counter substrate and overlaps with the pixel and the dimming element

Methodology Applied

Scientific EffectPolarization: Polarisation

Data Source

PatentUS11686975B2Imaging device having dimming element

Publication Date: 2023.06.27 MAGNOLIA WHITE CORP

AI summary

Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.