Panel Cover Design Eliminates Top Chassis in Display Devices

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Solution Overview

Problem

Conventional display devices often have a thick structure due to the use of a top chassis, which can lead to increased stress on the display panel and light leakage issues, while also making the device bulkier and less lightweight.

Innovation Solution

A display device design that eliminates the top chassis by using a panel cover with a groove portion to securely hold the display panel, featuring a polymer resin material for the panel cover and mold frame, and a backlight unit with a light source unit and optical sheets to provide illumination, allowing for a slim and lightweight construction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a top chassis is used to support the display panel, then structural strength is improved, but device thickness increases

Engineering Contradiction:
Improvestructural strengthVSAvoiddevice thickness
Core Design Contradiction:
StrengthVSLength of stationary object

Solution Approach 1:

The patent removes the traditional top chassis component from the display device structure. Instead of using a separate top chassis to support the display panel, the invention integrates the support function into the panel cover itself, which is formed as a single piece with bending portions that directly engage with the display panel edges, thereby eliminating the need for additional thickness-consuming components.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the functions of the top chassis and the side covers into a single integrated panel cover structure. The panel cover includes a body portion and bending portions that work together as a unified structure to both support the display panel and provide lateral coverage, merging what were traditionally separate components into one element.

Inventive Principle:
Principle #5Merging (Combining)

2Stability of the object's composition

If a top chassis is used to hold the display panel, then panel stability is improved, but device weight increases

Engineering Contradiction:
Improvepanel stabilityVSAvoiddevice weight
Core Design Contradiction:
Stability of the object's compositionVSWeight of stationary object

Solution Approach 1:

The invention extracts and removes the heavy top chassis component from the device structure. The panel cover is designed to provide sufficient mechanical support and stability for the display panel through its geometric configuration and material properties alone, without requiring the additional weight of a traditional top chassis.

Inventive Principle:
Principle #2Taking out (Extraction)

3Object-generated harmful factors

If a top chassis is used to support the display panel, then light leakage prevention is improved, but device complexity increases

Engineering Contradiction:
Improvelight leakageVSAvoiddevice complexity
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent eliminates the top chassis component that was previously needed to prevent light leakage. The integrated panel cover design with its bending portions creates sufficient structural engagement with the display panel to seal the edges and prevent light leakage, achieving the same protective function with a simpler overall structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges the light leakage prevention function into the basic structure of the panel cover itself. The bending portions of the panel cover naturally create a sealing interface with the display panel edges, integrating the light shielding function into the primary structural component rather than requiring separate light-blocking elements.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9606385B2Display device
Publication Date: 2017.03.28 SAMSUNG DISPLAY CO LTD
  • US9606385B2 patent drawing
  • US9606385B2 patent drawing
  • US9606385B2 patent drawing

AI summary

A display device includes a display panel, a panel cover, and a backlight unit. The display panel is configured to display an image on a front surface thereof. The panel cover covers an edge of the display panel. The backlight unit is configured to provide a light to the display panel. The panel cover includes a first portion disposed on the front surface of the display panel, a second portion bent and extending from the first portion to face a side surface of the display panel, and a third portion bent and extending from the second portion. The third portion is disposed on a rear surface of the display panel to be substantially in parallel to the first portion.