IT&E Materials

A World Class Competitive R&D Center

Based on
Differentiated Core Materials and
Process Technologies in
High-Tech Electronics Sector

In the field of IT&E Materials, we commercialized core materials for OLED and 3D FPR on the basis of design and synthesis technology for various organic/inorganic materials and processing technology such as stretching and pressing. We also developed the light source which has a 80 lm/W level of light-emitting efficiency, and it allowed an advancement in OLED lighting applications while developing cost competitive commercialization technologies. Apart from these achievements we made in Display technologies, we are constantly researching non-Display area as well, such as cathode materials for automobiles which have high power, capacity and reliability.

Materials for Post-LCD/Circuit Board/Semiconductor

Materials for LCD

Polarizer
Recently demands for thin-film transistor liquid crystal displays (TFT-LCD) have dramatically increased, not just for PC monitors and laptop computers, but also for flat screen TVs and mobile phones. In TFT-LCDs, pixels are switched on and off by the thin-film transistor-induced alignment of liquid crystals. A polarizer plays a central role in TFT-LCDs by acting as an optical shutter controlling the amount of light through an each pixel. A polarizer converts unpolarized light from a backlight unit into linearly polarized light, which can be easily manipulated by changing the alignment of the liquid crystals to turn the pixels on and off. Thus, the optical properties of polarizers play a crucial role in determining the image quality of TFT-LCD.

As one of the world's best and largest polarizer manufactures, LG Chem offers world-class quality and robust products. Polarizers produced by LG Chem exhibit high transmittance and polarizability. Our product has high thermal durability required by modern IT products including: personal digital assistance (PDA), GPS navigator, and camcorder.
  • polarizer for LCD display
Light Shaping Film for LCD
Generally, a TFT-LCD consists of a back light unit (BLU) and a panel containing pixel information. Discrete light from BLU becomes more continuous and uniformly spread throughout the panel because the light shaping film (LSF) is located in front of the BLU. The light shaped by the LSF is collimated towards the viewers allowing brighter images with increased contrast due to the recycling of light that is otherwise wasted. Diffusion, collimation and recycling of the backlight by the LSF result in slimmer, lighter and more efficient LCDs. Global consumption of energy can be reduced by reducing the number of lamps and increasing battery life.
  • luminance enhancement film for LCD display
3D FPR(Film Patterned Retarder)
The famous 3D movie, AVATAR made a great impact on the 3D display market. 3D TV is gaining popularity since it provides images without flickering and rids of troublesome battery recharging. In order to make a polarized 3D TV, an optical film called FPR (Film Patterned Retarder) must be attached on a TV screen to convert polarization states of images. LG Chem is the first in commercializing the FPR. LG Chem's FPR is ten times thinner and 20 times lighter than the glass based Arisawa's glass patterned retarder and can be easily mass-produced.

LG Chem has developed various key technologies such as novel photo-aligning polymers, non-contact type roll to roll continuous patterning and management of dimensional stability of FPR, resulting in superior performance 3D display..
  • schematic diagram of 3D
Glass for Display
Non-alkaline display substrate glass, which is a key material for TFT-LCD and OLED used in TVs, monitors, and portable communication devices, requires a sophisticated technology for producing thinner glasses highly flat surface and also requires extremely high quality and process control as compared to the production of conventional soda-lime window glass. With an increase in size, higher resolution of flat-panel display and a sharp increase of OLED industry result in a high demand of thin glasses under 0.5 mm of thickness with the improvement of surface quality and thermal stability of glass at high temperature.

LG Chem, Ltd. is currently commercially producing TFT-LCD substrate glasses. R&D division is performing various researches related to the defect analysis, composition and batch control, optimization of process materials, and process simulation with its own glass melting facilities and analysis instruments in order to improve the production yield. Also, R&D division is developing new glasses such as IT cover glass and solar glass.
  • process for LCD glass
  • LCD product

Related Fields

Related Fields
Chemical Engineering Rheology, Application and Processing of Polymer
Chemistry Inorganic Synthesis, Organic synthesis, Polymer Synthesis, Coating/Vacuum Deposition
Physics Optics, Photonics
Materials Engineering Electronic Materials, Surface Treatment, Inorganic Materials, Metal
Textile Engineering Dyes, Polymer Composite Materials
Industrial Engineering Polymer Materials
  • Contact : mswonsik@lgchem.com.com

Materials for Post-LCD/Circuit Board/Semiconductor

Materials for Circuit Board/Semiconductor

Flexible CCL(Copper Clad Laminate)
FCCL(Flexible Copper Clad Laminate) is one of the key components in mobile phones, digital cameras, PDAs, and LCD modules. It is composed of copper foil and insulating polyimide film without adhesives in between. Performance of mobile devices can be improved by thin and thermally stable FCCLs. LG Chem's FCCL shows very high peel strength, flexibility and uniformity by own polyimide formulations and continuous curing technology.
  • circuit material CCL
IC Package
Prepreg and CCL for IC Package Substrates
As for PCB substrate materials, prepregs and copper clad laminates (CCL) have been studied. Prepreg is made of glass fiber and thermally curable resins whereas CCL is manufactured by depositing copper thin films on the prepreg followed by thermal curing. The prepreg and CCL are used in memory chips, microprocessors and memory cards in computers, mobile phones and other multimedia applications. LG Chem has continuously developed materials and provided solutions for customers meeting their demands for miniaturized, highly integrated and muti-functional products.
  • copper substrate
DAF & DFSR
DAF(Die Attached Film)
DAF, composed of a wafer dicing tape and a die bonding tape, is an integrated functional film used in the semiconductor packaging process. DAF has a structure in which an epoxy based die bonding tape is laminated on a dicing tape. The dicing tape is composed of a highly expandable base film and a UV-reactive pressure sensitive adhesive. It has a wide processing window in dicing and pick-up processes because it shows easy pick-up and less burr, and shows high adhesion strength and high reliability, which enables the DAF to be applicable to multi-chip package without void issues.
  • This is a schematic diagram of die attached film production such as die bonding, UV exposure,  wafer lamination, wafer sawing and so on

DFSR(Dry Film type photosensitive Solder Resist)
Solder Resist(SR) is an insulating ink that covers the surface of printed wiring boards and protects the circuit pattern. DFSR is dry film type of solder resist. One of the main roles of SR is to prevent the solder from adhering to unnecessary parts when components are mounted on the board. It also acts as a permanent protective coating, protecting the circuit pattern from dust, heat, and moisture while insulating the board's circuitry. DFSR has excellent surface roughness compared to the conventional SR-ink, showing promising advantageous in mounting components on the board in high density and also in controlling warpage of thin core package.

  • This is an image of dry film type photosensitive solder resist

Related Fields

Related Fields
Chemical Engineering Rheology, Application and Processing of Polymer
Chemistry Inorganic Synthesis, Organic synthesis, Polymer Synthesis, Coating/Vacuum Deposition
Physics Optics, Photonics
Materials Engineering Electronic Materials, Surface Treatment, Inorganic Materials, Metal
Textile Engineering Dyes, Polymer Composite Materials
Industrial Engineering Polymer Materials
  • Contact : mswonsik@lgchem.com.com

Materials for Green Energy

Next Generation Lighting

OLED Lighting
OLED technology, along with LED lighting, is considered the leading next generation lighting due to its ‘eco-friendly green growth’ material and energy efficiency. With the advantage of being easy on eyes compared to the LED light, this new (lighting) technology is optimized for the main indoor lighting. OLED lighting is a highly versatile technology with numerous potential applications including ambient and technical lightings as well as signage and vehicle applications. Contrary to the existing bulb, bar, and point light source, various lighting design can be created with OLED technology. The application of plastic substrate gives a high potential to OLEDs to emerge as a new lighting source for flexible flat lighting, which would allow diversities in applications with no restraints in space utilization. LG Chem is conducting a research to create lighting panels by taking advantage of being the leading producer of OLED materials.
  • OLED lighting

Related Fields

Related Fields
Chemical Engineering Rheology, Application and Processing of Polymer
Chemistry Inorganic Synthesis, Organic synthesis, Polymer Synthesis, Coating/Vacuum Deposition
Physics Optics, Photonics
Materials Engineering Electronic Materials, Surface Treatment, Inorganic Materials, Metal
Textile Engineering Dyes, Polymer Composite Materials
Industrial Engineering Polymer Materials
  • Contact : mswonsik@lgchem.com.com

Materials for Green Energy

Materials for Photovoltaic Module

Back Sheet for Solar Cell
The functions of backsheets for photovoltaic modules include physical protection of the cell, vapor barrier, and electrical insulation for the purpose of good operation of the cell for more than 25 years. Therefore, backsheet materials must have superior UV resistance and weather resistance, in addition to having a high vapor barrier property, high electrical properties, and high mechanical properties during their service period. The most popular backsheet is a tri-laminate structure of PVF film / PET film / PVF film, which is commonly referred as TPT. Based on our material technology and coating technology, we are developing backsheet solutions, providing customers with differentiated values in terms of higher functionality, higher performance, and lower price.
  • This is a structural diagram of photovoltaic which consists of back sheet, metal paste, encapsulant and so on

Related Fields

Related Fields
Chemical Engineering Rheology, Application and Processing of Polymer
Chemistry Inorganic Synthesis, Organic synthesis, Polymer Synthesis, Coating/Vacuum Deposition
Physics Optics, Photonics
Materials Engineering Electronic Materials, Surface Treatment, Inorganic Materials, Metal
Textile Engineering Dyes, Polymer Composite Materials
Industrial Engineering Polymer Materials
  • Contact : mswonsik@lgchem.com.com

Materials for Green Energy

Materials for Battery

Battery Separator
Battery separators are microporous polymeric membranes that protect anode and cathode while allowing electrolytes to pass through in a cell. Wet type separators are produced by TIPS (thermally induced phase separation) for small rechargeable batteries, and dry type separators are produced only by stretching through row lamellar structured crystalline polymers for large sized rechargeable batteries for EVs(Electric vehicle) Optimally structured highly crystalline polymers and proper diluents are essential for both good mechanical properties and three dimensionally microporous structures of separators depending on specific applications. Basic understanding of phase separation, control of crystalline structure, film stretching are required.
  • separator for lithium ion rechargeable battery

Related Fields

Related Fields
Chemical Engineering Rheology, Application and Processing of Polymer
Chemistry Inorganic Synthesis, Organic synthesis, Polymer Synthesis, Coating/Vacuum Deposition
Physics Optics, Photonics
Materials Engineering Electronic Materials, Surface Treatment, Inorganic Materials, Metal
Textile Engineering Dyes, Polymer Composite Materials
Industrial Engineering Polymer Materials
  • Contact : mswonsik@lgchem.com.com