Analysis of trace metal elements in liquid crystals

Depending on the panel size, it is possible to analyze using different ICP-AES/MS devices!

We will introduce a case where ICP measurement was conducted using panels before and after reliability testing, and quantification was performed. The liquid crystal molecules in an LCD are oriented within the panel, and the display is controlled by changes in the orientation state of the liquid crystal due to voltage. When ionic substances, such as metal elements, are present inside the panel, the liquid crystal does not operate correctly, leading to display defects. It is known that ionic substances can increase due to contamination during manufacturing or long-term use, making it important to quantify and understand them as part of panel quality. Metal ions can be quantitatively analyzed using ICP analysis, and depending on the differences in pretreatment methods and detection sensitivity, ICP-AES/MS is used selectively. [Analysis Content] ■ Comparison of metal element content using ICP-AES analysis ■ Comparison of metal element content using ICP-MS analysis *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

We provide comprehensive support for customers facing reliability issues with overseas manufactured LCD displays, from reliability testing to failure analysis and material analysis.

Unreliable LCD displays are causing problems in the market. At Aites, we solve our customers' reliability issues by conducting reliability testing design and visual inspections before and after testing, leveraging our extensive experience and state-of-the-art equipment. Furthermore, we provide support from failure mode classification to failure analysis and material analysis.

• Other analytical equipment

A clear explanation of Aites' technological capabilities analyzed from molecular structures, accompanied by diagrams and tables!

This document introduces an example of an analytical method for molecular structure analysis. It includes structural analysis using IR and Raman for liquid crystal polymers (LCP), TIC data from GC-MS analysis of low molecular weight liquid crystals (for LCD), as well as detected substances, presented with figures and tables. For analysis at the quantum level, please consult the technical group "Aites," known for their extensive expertise. 【Contents (excerpt)】 ■ Liquid Crystal Polymers (LCP) ■ Structural analysis of LCP (fully aromatic polyamide) ■ Structural analysis using IR ■ Structural analysis using Raman ■ Structural analysis using XPS (ESCA) *For more details, please refer to the PDF document or feel free to contact us.

• others

Comparison of components in liquid crystal panels using gas chromatography-mass spectrometry (GC-MS) is published!

This document introduces a comparison of components in PC monitors and digital clocks using gas chromatography-mass spectrometry (GC-MS). Liquid crystal displays contain small organic substances (liquid crystal molecules). These have evolved into molecular structures suitable for product characteristics due to technological innovations. Our company clarifies these differences at the molecular level using GC-MS, allowing us to confirm that the liquid crystal molecules are appropriate for their intended use and to check for the presence of impurities. [Contents] ■ Comparison of components in PC monitors and digital clocks using GC-MS ■ Case studies of GC-MS analysis of liquid crystal components We compared the number of components and characteristics of segment-type liquid crystal displays (digital clocks) and color TFT liquid crystal displays (PC monitors). *For more details, please refer to the PDF document or feel free to contact us.

• Other services and technologies

Check the quality status of LCD components and products! We will analyze the structures of the LCD panel using our analytical methods and expertise!

At AITES, we conduct quality analysis of LCD components/products, confirming the quality status of products based on our expertise in LCD technology. The target panels include SEG-LCD, AM-LCD (a-Si TFT / LTPS TFT), OLED for automotive, monitors, mobile devices, and more. We perform quality analysis using our analytical methods on the various structures of liquid crystal panels. 【Analysis Details (Excerpt)】 <Reliability/Lighting Tests> ■ Classification - Reliability Testing - Lighting Inspection ■ Analytical Methods - Oven Drive Testing - Visual Inspection *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

We will narrow down the defective areas through lighting confirmation, panel disassembly, and optical microscope observation!

We provide a defect diagnosis menu for LCD panels, from confirming defects to identifying causes and conducting detailed defect analysis. In the initial analysis, we perform a status check (lighting test), panel disassembly, and optical microscope observation, tailored to the defect symptoms. In the detailed analysis, we propose suitable methods such as surface analysis, cross-sectional analysis, and component analysis based on the diagnosis results from the initial analysis. It is also possible to speculate on the defect occurrence mechanism, including narrowing down the production processes that caused the defects. 【Analysis Content】 ■ Initial Analysis - Conducted based on the status check (lighting test), panel disassembly, and optical microscope observation, tailored to the defect symptoms. - Narrowing down from broad areas such as cell panels and surrounding circuits to finer details. ■ Detailed Analysis (additional analysis fees apply) - Proposing suitable methods such as surface analysis, cross-sectional analysis, and component analysis based on the diagnosis results from the initial analysis. - Speculating on the defect occurrence mechanism, including narrowing down the production processes that caused the defects. *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

We detect and analyze the atomic emission that occurs when an atom returns from an excited state to its ground state!

In ICP emission spectroscopic analysis, multiple metal elements contained in a sample can be detected simultaneously. This document introduces examples of the analysis of trace metal elements contained in liquid crystals. It includes the principles and overview of ICP-AES analysis as well as measurement examples. Please feel free to contact us regarding the sample state or the elements to be analyzed. [Contents] ■ Principles and overview of ICP-AES analysis ■ Measurement example: Qualitative analysis of metal elements in liquid crystal panels using ICP-AES *For more details, please refer to the PDF document or feel free to contact us.

• Analysis and prediction system

We introduce case studies of comparative analysis conducted through chemical analysis, such as GC-MS analysis and ICP-AES analysis!

In the event of a display failure on a liquid crystal panel, it is necessary to clarify the cause in order to prevent recurrence. This document presents a case study comparing panel A, which exhibited display unevenness due to temperature stress, and panel B, which showed no display issues, through chemical analysis. Aites can investigate the cause through chemical analysis of the liquid crystal interior when initial analyses, such as observations, do not reveal any issues. We can also propose analytical methods tailored to the samples and objectives beyond the techniques mentioned here. [Contents] ■ Reliability testing (80°C / dry conditions / 1000 hours) ■ Liquid crystal GC-MS analysis ■ Metal element ICP-AES analysis within the liquid crystal ■ Summary *For more details, please refer to the PDF document or feel free to contact us.

• Analysis and prediction system

We can perform good product characteristic measurements for performance verification, as well as defective characteristic measurements and reliability evaluations!

Our company is capable of conducting performance verification through good characteristic measurements, defective characteristic measurements, and reliability evaluations for specific TFTs in LCD panels. In the "Electrical Characteristic Measurement of TFTs at Various Temperatures," we can disassemble the monitor in display mode and perform electrical characteristic measurements on the pixel TFTs within the panel. In the "DC Bias Stress Test," we apply an arbitrary DC bias to the Gate and Drain and measure the Vth shift when stress is applied to the TFT, thereby confirming reliability. 【Features】 <Electrical Characteristic Measurement of TFTs at Various Temperatures> ■ Electrical characteristic measurements can be performed on the pixel TFTs within the panel. ■ Measurements can be conducted before and after annealing, under light exposure, heating, or cooling conditions. ■ From the measurement results, indicators such as Ion, Ioff, Vth, and mobility can be calculated. ■ Confirmation of actual values in good product analysis and clarification of defect causes can be performed. *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection

Rich in equipment and expertise! We will elucidate the molecular structures of various materials through chemical equipment analysis!

There are various types of liquid crystal materials, including low molecular weight compounds used in LCD panels and high molecular weight polymers used in printed circuit boards and electronic components. We will introduce examples of analyzing the molecular structures of these low molecular weight liquid crystals and high molecular weight liquid crystals (LCP). Our company, equipped with a wealth of devices and expertise, can handle reliability testing and analytical analysis not only for liquid crystal materials but also for various other materials. Please feel free to consult us regarding the understanding of molecular structures of imported goods and materials, as well as troubleshooting issues. 【Case Study Content】 ■ Molecular structure analysis using FT-IR ■ Understanding of surface functional groups (molecular groups) through XPS (ESCA) analysis ■ Example of LCD liquid crystal material analysis using GC-MS *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment
• Measurement and Analysis Equipment

We propose analytical methods tailored to materials and purposes! Here are examples of chemical analysis for each component, such as liquid crystals and sealing materials.

Liquid crystal displays use various organic materials, including liquid crystals, sealing materials, encapsulants, and polarizers. Considering the material properties and degradation mechanisms of each component from a chemical perspective is important for product evaluation and failure analysis. This document presents examples of chemical analyses for the components of liquid crystal displays. [Examples of Chemical Analysis] - FT-IR: Principal component analysis - EDX: Elemental analysis - GCMS: Liquid crystal component analysis - HS-GCMS: Outgassing analysis (degradation analysis), among others *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection
• Measurement and Analysis Equipment
• Other services and technologies

Hotron Inc. has launched its new product, the "Vehicle Count Sensor CCS3"! This product is a ceiling-mounted sensor that combines infrared and radar technology. It reliably detects vehicles in both directions with a single unit, accommodating traffic during congestion and vehicle passing, thus achieving efficient occupancy management in large parking lots. Additionally, it can be utilized for exit warning purposes in addition to vehicle counting, contributing to the safe and smooth operation of parking facilities. 'Features' - Improved detection performance against changes in road surface during rainy weather by using both infrared and radar. - Equipped with IP67 waterproof and dustproof performance, making it effective even in salt damage areas. - Various settings can be configured from a dedicated app (for Android devices), with current settings easily visible at a glance. - The base dimensions are the same as the previous model "CCS2," allowing for smooth replacement of existing equipment. *For more details, please refer to the product information, catalog download, or contact us.*

From measurement instruments to point cloud processing and analysis software, the latest solutions come together! We propose numerous cutting-edge technologies and products that solve on-site challenges in a one-stop manner. It's not just about seeing; it's about experiencing, consulting, and bringing it back to the field. At the venue, we will showcase the latest measurement instruments and solutions, including 3D laser scanners, handheld 3D scanners, LiDAR drones, and 3DGS (Gaussian Splatting). Additionally, we will announce surprise new products!

We have updated the article on the website of the semi-custom system construction "Select Beam." When planning factories, logistics warehouses, and stores, "system construction" has become an effective means of achieving cost reduction and shortening construction periods. The rationality of system construction through thorough standardization is very high, and it is adopted in many projects. However, due to the differing characteristics of each manufacturer, many business owners find themselves wondering, "Which manufacturer is suitable for our plans?" and "Is it really optimal compared to conventional methods?" In this article, we will compare and introduce the basic knowledge of the advantages and disadvantages of system construction, as well as recommend manufacturers by purpose in a ranking format. ■ Semi-Custom System Construction "Select Beam" This is a unique method by Sakura Structure, and it is a "third option" that is less expensive than system construction. It is the most suitable method for low-rise long-span buildings such as stores, warehouses, factories, and logistics facilities, as well as high-rise buildings like hotels.

"Because the ground is poor, we have no choice but to use a structural slab." Such fixed notions of "over-design" unnecessarily drive up construction costs. In large space buildings such as warehouses, factories, and stores, the choice of floor slab type is one of the most significant variables affecting construction costs. What is important is to compare and verify the advantages and risks of each type, and to derive the optimal solution that is "suitable for the purpose" for the entire building. By reading this content, you will understand the following points: - Characteristics of the five main construction methods with different support forms - Recommended situations for adoption - Cost comparison examples of floor slabs "I am struggling with the dilemma of floor settlement risks and costs on weak ground." "I want to know the optimal solution for the site without being tied to a specific construction method." Construction companies and general contractor representatives facing such issues are encouraged to take a look.

Our company will be exhibiting at the "Hokuriku Technology Exchange Techno Fair 2026." Dates: October 23rd, 10:00 AM - 5:00 PM October 24th, 10:00 AM - 4:00 PM Venue: Fukui Prefectural Industrial Hall We look forward to your visit.