Vehicle Light-Emitting Display with Linear Glare-Blocking Patterns

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Solution Overview

Problem

Existing display devices in vehicles emit light in specific directions that can interfere with a driver's view, causing glare on the windshield and potentially obstructing the driver's vision at night.

Innovation Solution

A light emitting display device with light blocking linear patterns on its front surface, including a pixel defining layer, color converting layers, and an upper transparent organic layer, designed to prevent light emission in certain directions and maintain front luminance by using specific pattern configurations and materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If light blocking films are used to control light emission direction, then light emission angle can be restricted, but misalignment and reduced transmittance occur

Engineering Contradiction:

Improvelight emission angle controlVSAvoidalignment accuracy

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The light blocking function is segmented into discrete linear patterns rather than using a continuous film. These linear patterns are integrated directly into the display device structure, eliminating alignment issues between separate components while maintaining effective light angle control.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The light blocking linear patterns are merged with the display device structure itself, combining the light blocking function with the display panel. This integration eliminates the need for separate light blocking films and their associated alignment problems.

Inventive Principle:

Principle #5Merging (Combining)

2Object-affected harmful factors

If light blocking films are used to control light emission direction, then glare can be reduced, but transmittance and manufacturing cost are adversely affected

Engineering Contradiction:

Improveglare reductionVSAvoidmanufacturing complexity

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The light blocking function is merged into the display device structure through integrated linear patterns, eliminating the need for separate light blocking films. This reduces manufacturing steps and costs while maintaining effective glare reduction.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The linear patterns serve multiple functions: they block light at specific angles to reduce glare, maintain front luminance, and are integrated into the display structure. This multi-functionality eliminates the need for additional separate components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If light blocking patterns are added to control viewing angle, then device complexity increases, but light emission control is improved

Engineering Contradiction:

Improveviewing angle controlVSAvoidstructure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The light blocking linear patterns are merged with existing display device layers and structures. By integrating the light blocking function into the display panel itself rather than adding separate components, the actual increase in complexity is minimized while achieving effective viewing angle control.

Inventive Principle:

Principle #5Merging (Combining)

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

Prevents light from being emitted in specific directions, reducing glare on the windshield and maintaining front luminance, while eliminating manufacturing issues like misalignment and moiré phenomena, and reducing costs.

Implementation Method 1

light blocking linear patterns disposed on the pixel defining layer and the light emitting layer and extending in a first direction

Methodology Applied

Scientific EffectLight blocking: Absorption (EM radiation)

Implementation Method 2

a color converting layer disposed between the light blocking linear patterns

Methodology Applied

Scientific EffectColor conversion: Photoluminescence

Implementation Method 3

an upper transparent organic layer disposed between the light blocking linear patterns and disposed on the color converting layer

Methodology Applied

Scientific EffectLight transmission: Refraction

Data Source

PatentUS12615927B2Light emitting display device and vehicle including the same

Publication Date: 2026.04.28 SAMSUNG DISPLAY CO LTD

AI summary

According to embodiments, a light emitting display device and a vehicle including the light emitting display device include a light emitting diode disposed on a substrate and including a light emitting layer; a pixel defining layer having an opening corresponding to the light emitting layer; light blocking linear patterns disposed on the pixel defining layer and the light emitting layer and extending in a first direction; a color converting layer disposed between the light blocking linear patterns; and an upper transparent organic layer disposed between the light blocking linear patterns and disposed on the color converting layer.