Movable Reflective Member for Display Luminance Uniformity

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Solution Overview

Problem

Full screen displays face a luminance difference issue due to overlapping areas with embedded devices like cameras, causing user dissatisfaction as the image quality varies between transparent and opaque emission zones.

Innovation Solution

A display apparatus with a movable reflective member between the display panel and auxiliary member to overlap specific areas, reflecting light and reducing luminance differences between transparent and opaque emission zones, enhancing user satisfaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If an additional device is arranged inside the main body to achieve full screen display, then design satisfaction is improved, but luminance difference occurs between overlap area and other areas

Engineering Contradiction:
Improvefull screen displayVSAvoidluminance uniformity
Core Design Contradiction:
ShapeVSIllumination intensity

Solution Approach 1:

A reflective member is introduced as an intermediary component between the auxiliary member and the display panel. This reflective member redirects light that would otherwise be blocked by the auxiliary member, converting it into useful light that exits through the overlap area. This mediator approach resolves the luminance difference by adding a light redirection mechanism without changing the fundamental full-screen layout.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The solution introduces a spatial dimension by positioning the reflective member at an angle between the display panel and the auxiliary member. Instead of addressing the luminance issue in the same plane, the reflective member uses a different spatial dimension (angled light path) to redirect light, thereby achieving uniform luminance across the display area while maintaining the full-screen configuration.

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

2Illumination intensity

If a reflective member is arranged to reflect light, then luminance difference is reduced, but device complexity increases

Engineering Contradiction:
Improveluminance uniformityVSAvoidstructure complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The reflective member is designed with movable capability, allowing it to dynamically adjust its position or angle. This dynamic feature enables the system to optimize light reflection based on different operating conditions while maintaining a relatively simple structural configuration. The movability provides flexibility without requiring complex multi-component mechanisms.

Inventive Principle:
Principle #15Dynamics

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

The solution effectively minimizes luminance differences between emission zones, providing uniform image quality and user satisfaction by reflecting light from the reflective member, thus addressing the issue of varying image quality in full screen displays.

Implementation Method 1

light emitted from the display panel toward the inside of the main body may be reflected in the outside

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS11925060B2Display with movable reflective member
Publication Date: 2024.03.05 LG DISPLAY CO LTD
  • US11925060B2 patent drawing
  • US11925060B2 patent drawing
  • US11925060B2 patent drawing

AI summary

A display apparatus includes a display panel having a first area and a second area, a main body supporting the display panel, an auxiliary member arranged in the main body, and a reflective member arranged between the auxiliary member and the display panel, wherein the reflective member may movably be provided to overlap the first area or the second area. Therefore, light emitted from the display panel toward the inside of the main body may be reflected in the outside, and a luminance difference between the first area and the second area of the display panel may be prevented from occurring, whereby a user's satisfaction for an image may be enhanced.