Receiving Container Buffer Recesses for LCD Substrate Impact Protection

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Solution Overview

Problem

Thin glass substrates in small or middle-sized LCD devices are prone to damage, particularly at the corners where the driver chip is mounted, due to their reduced thickness and increased fragility.

Innovation Solution

A receiving container design with buffer recesses and supporting portions is implemented to absorb external impacts, separating the corners of the lower and upper substrates from the container's base surfaces, thereby reducing damage to the LCD panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the glass substrate thickness is reduced to make the device thinner, then the device thickness is reduced, but the glass substrate becomes more fragile and prone to damage

Engineering Contradiction:
Improvedevice thicknessVSAvoidglass substrate strength
Core Design Contradiction:
Length of moving objectVSStrength

Solution Approach 1:

The patent applies beforehand cushioning by providing buffer recesses at the corners of the receiving container before the glass substrate can be damaged. These recesses create a cushioning effect that absorbs impact forces, allowing the use of thinner glass substrates without compromising their strength during transportation and handling.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent uses the buffer recesses as an intermediary structure between the external impact and the glass substrate. This intermediary element absorbs and distributes the impact force, protecting the thin glass substrate from direct damage while enabling the device to maintain its reduced thickness.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the glass substrate is made thinner to reduce device size, then the device becomes smaller, but the corner regions become more susceptible to damage

Engineering Contradiction:
Improvedevice volumeVSAvoidcorner region reliability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent applies local quality by providing buffer recesses specifically at the corner regions where damage is most likely to occur, rather than uniformly throughout the entire container. This localized protection strategy addresses the specific vulnerability of corner regions while maintaining the overall compact design of the device.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The buffer recesses are pre-formed at the corner regions to provide beforehand cushioning against potential impacts. This advance preparation ensures that when the device is subjected to external forces during transportation or handling, the corner regions are already protected, maintaining reliability despite the reduced substrate thickness.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Strength

If buffer recesses are added to protect the substrates, then damage resistance is improved, but the container structure becomes more complex

Engineering Contradiction:
Improveimpact resistanceVSAvoidcontainer structure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the buffer protection into discrete corner-specific recesses rather than creating a complex overall structural change. Each corner receives targeted protection through individual buffer recesses, simplifying the design compared to a comprehensive reinforcement structure while effectively improving impact resistance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The buffer recesses are localized to specific corner regions rather than being distributed throughout the entire container structure. This localized approach minimizes the added complexity to the container design while providing effective protection where it is most needed, balancing impact resistance with structural simplicity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS7821594B2Receiving container, display device having the same and a method thereof
Publication Date: 2010.10.26 SAMSUNG DISPLAY CO LTD
  • US7821594B2 patent drawing
  • US7821594B2 patent drawing
  • US7821594B2 patent drawing

AI summary

A receiving container includes first to third sidewalls, first and second buffer recesses and a supporting portion. The first sidewall faces shorter first sides of the lower and upper substrates. The second and third sidewalls are connected to end portions of the first sidewall and face each other. The first buffer recesses are disposed in the first and second sidewalls at a region where the first and second sidewalls meet each other, and in the first and third sidewalls where the first and third sidewalls meet each other. The supporting portion is extended from inner surfaces of the first, second and third sidewalls and supports edge portions of the lower substrate. The second buffer recesses are disposed in the supporting portion and at a region of the supporting portion, which corresponds to corners of the lower substrate.