Impact Absorbing Member for LCD Panel Protection
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Solution Overview
Problem
Liquid crystal display devices in mobile communication terminals are prone to damage from external impacts due to their slim profile and lightweight design, which lacks sufficient impact resistance and is vulnerable to external moisture and dust.
Innovation Solution
Incorporating an impact absorbing member, such as a flexible synthetic resin, between the liquid crystal panel and the mold frame to absorb external impacts and prevent damage, while also blocking external moisture and dust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the substrate thickness is reduced to achieve a slim profile and lightweight design, then the display device becomes more portable and compact, but the impact resistance deteriorates and the panel becomes vulnerable to external impacts and moisture
Solution Approach 1:
A buffer layer is introduced as an intermediary component between the liquid crystal panel and the external environment. This buffer layer absorbs external impacts and prevents direct transmission of forces to the thin substrate, thereby maintaining both the slim profile and impact resistance. The buffer layer acts as a mediator that protects the vulnerable thin panel from external mechanical stresses.
Solution Approach 2:
The buffer layer is positioned beforehand between the liquid crystal panel and the mold frame to provide cushioning protection. This pre-positioned cushioning layer absorbs external impacts before they can reach the fragile substrate, preventing damage in advance while allowing the substrate to remain thin for portability.
2Length of moving object
If the substrate thickness is reduced to achieve a slim profile and lightweight design, then the display device becomes more portable, but the protection against external moisture and dust deteriorates
Solution Approach 1:
The buffer layer serves as an intermediary barrier between the liquid crystal panel and the external environment. This intermediate layer blocks external moisture and dust from directly contacting the thin substrate, thereby maintaining protection against harmful factors while preserving the slim profile.
Solution Approach 2:
A flexible buffer layer in the form of a thin film is used to protect the liquid crystal panel. This thin film provides sufficient protection against moisture and dust while maintaining the overall thinness of the display device, preventing the need to increase substrate thickness.
3Device complexity
If the first polarizer and second polarizer are formed in a size smaller than the substrates, then the device complexity is reduced, but the impact resistance deteriorates as the polarizers become more vulnerable to external impacts
Solution Approach 1:
The buffer layer acts as a protective intermediary that extends the protection scope to include the polarizers. By positioning the buffer layer between the external environment and the polarizers, it absorbs impacts before they can reach these vulnerable components, thereby improving reliability without increasing device complexity.
Solution Approach 2:
The buffer layer is positioned beforehand to provide cushioning protection to the polarizers. This pre-positioned protective layer absorbs external impacts before they can damage the polarizers, thereby improving their impact resistance while maintaining the simplified polarizer size configuration.
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 impact absorbing member effectively prevents damage to the liquid crystal panel from external impacts and shields it from moisture and dust, enhancing the durability and reliability of the display device.
Implementation Method 1
an impact absorbing member 141 formed between the liquid crystal panel and the mold frame
Implementation Method 2
light can be transmitted or blocked depending on an alignment direction of the liquid crystal molecules by optical anisotropy of the liquid crystal
Implementation Method 3
it is possible to control an alignment direction of liquid crystal molecules by artificially applying an electric field to the liquid crystal molecules having directionality and polarization in the molecular arrangement
Data Source
AI summary
Provided is an LCD device. The LCD device includes liquid crystal panel, a mold frame, and an impact absorbing member. The liquid crystal panel has a first substrate, a second substrate, and a liquid crystal layer interposed between the first and second substrates. The liquid crystal panel is seated on the mold frame. The impact absorbing member is formed between the liquid crystal panel and the mold frame.