Transparent Display Driving Circuit Mode Switching

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Solution Overview

Problem

Transparent displays face challenges in maintaining contrast and clarity when ambient light brightness is high, leading to reduced image quality and blurred feature edges.

Innovation Solution

A transparent display device with a driving circuit that controls both the display unit and transparency controlling unit through different modes, allowing for adjustable light intensity and transmittance to match ambient light conditions, ensuring optimal display effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the transparency controlling unit is driven in a high transmittance mode, then the ambient light transmission is improved, but the image contrast deteriorates

Engineering Contradiction:

Improveambient light transmissionVSAvoidimage contrast

Core Design Contradiction:

Illumination intensityVSLoss of information

Solution Approach 1:

The patent implements dynamic driving modes for the transparency controlling unit, switching between a first driving mode (high transmittance) for ambient light transmission and a second driving mode (low transmittance) for image display, allowing the system to adapt its transparency characteristics based on operational requirements

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The display device is segmented into functionally independent units: a display unit for image content and a transparency controlling unit for background transparency, each driven by independent driving circuits that can operate in different modes simultaneously, enabling spatial and functional segmentation of transparency control

Inventive Principle:

Principle #1Segmentation

2Loss of information

If the transparency controlling unit is driven in a low transmittance mode, then the image contrast is improved, but the ambient light transmission deteriorates

Engineering Contradiction:

Improveimage contrastVSAvoidambient light transmission

Core Design Contradiction:

Loss of informationVSIllumination intensity

Solution Approach 1:

The system dynamically switches between two driving modes for the transparency controlling unit: a first mode that maximizes ambient light transmission and a second mode that maximizes image contrast, allowing optimal performance to be selected based on the current operational context

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Different regions of the display device can operate in different driving modes simultaneously through independent control of the display unit and transparency controlling unit, allowing local optimization where image display regions use low transmittance while ambient light transmission regions use high transmittance

Inventive Principle:

Principle #3Local quality

3Device complexity

If a single driving mode is used for both display unit and transparency controlling unit, then the device complexity is reduced, but the adaptability to different display conditions deteriorates

Engineering Contradiction:

Improvedriving circuit configurationVSAvoiddisplay mode adaptability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The transparency controlling unit serves multiple functions by being capable of operating in different driving modes: it can function as a high-transmittance window when driven in the first mode and as a display background when driven in the second mode, making the same hardware component universally adaptable to different operational requirements

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11335232B2Display device

Publication Date: 2022.05.17 INNOLUX CORP

AI summary

A display device is provided. The display device includes a display unit, a transparency controlling unit, and a driving circuit. The driving circuit is coupled to the display unit and the transparency controlling unit. The driving circuit drives the display unit and the transparency controlling unit in different modes. Therefore, the display device may provide a transparent display function.