Information
146 Cheomdansaneop-ro, Daesowon-myeon, Cheongju, Chungcheongbuk-do, South Korea
+82 43-842-1988
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Overview
- Summary
- KOYJ Co., Ltd. is a specialized functional component material company primarily engaged in the manufacturing of optical films and light guide plates for displays. The company secures competitiveness in the LCD backlight unit core material market through its proprietary ultra-precision coating and patterning technologies. Recently, it has been expanding into new business areas by developing anode material additives for secondary batteries and SOC materials for semiconductor ultra-fine processes. The company is also focusing its capabilities on developing technologies related to electric vehicle electronic components and OLEDs.KOYJ Co., Ltd. is a specialized functional component material company primarily engaged in the manufacturing of optical films and light guide plates for displays. The company secures competitiveness in the LCD backlight unit core material market through its proprietary ultra-precision coating and patterning technologies. Recently, it has been expanding into new business areas by developing anode material additives for secondary batteries and SOC materials for semiconductor ultra-fine processes. The company is also focusing its capabilities on developing technologies related to electric vehicle electronic components and OLEDs.
- Key Products/Technologies
- **Optical Films**: The company offers a diverse product line of functional films, including prism films, high-hardness hard-coating films, optical protective films, antistatic agents, and barrier films. It possesses the capability to produce differentiated products by applying its proprietary coating solution formulation technology and customized coating techniques tailored to the characteristics of film substrates. Prism sheets are core components that enhance display brightness by concentrating light in a vertical direction. Diffuser sheets play a role in evenly distributing light across the LCD front surface, increasing brightness and concealing fine patterns.**Optical Films**: The company offers a diverse product line of functional films, including prism films, high-hardness hard-coating films, optical protective films, antistatic agents, and barrier films. It possesses the capability to produce differentiated products by applying its proprietary coating solution formulation technology and customized coating techniques tailored to the characteristics of film substrates. Prism sheets are core components that enhance display brightness by concentrating light in a vertical direction. Diffuser sheets play a role in evenly distributing light across the LCD front surface, increasing brightness and concealing fine patterns.
- **Light Guide Plates (LGPs)**: KOYJ holds technology to maximize light efficiency by collecting light from the side light source of the backlight unit (BLU) and directing it to the front. It has the capability to implement ultra-slim LGPs with a thickness of 0.3T and form fine patterns at a 40㎛ level. The company utilizes a thermal transfer method for simultaneous double-sided pattern coating, differentiating itself from conventional printing and laser cutting methods. This technology enhances market responsiveness through faster production speeds and flexible pattern design capabilities.**Light Guide Plates (LGPs)**: KOYJ holds technology to maximize light efficiency by collecting light from the side light source of the backlight unit (BLU) and directing it to the front. It has the capability to implement ultra-slim LGPs with a thickness of 0.3T and form fine patterns at a 40㎛ level. The company utilizes a thermal transfer method for simultaneous double-sided pattern coating, differentiating itself from conventional printing and laser cutting methods. This technology enhances market responsiveness through faster production speeds and flexible pattern design capabilities.
- **Semiconductor Materials**: The company has developed Self-Crosslinking SOC (Spin-On Carbon) precursor technology, essential for 3D NAND and high-stacking processes in semiconductors. This technology fundamentally resolves issues of gas generation and impurities during high-temperature processes, achieving an ultra-high purity environment. It demonstrates approximately 95% etching resistance compared to conventional ACL (Amorphous Carbon Layer) and less than 2.5% weight loss during high-temperature bake processes above 400℃. Maintaining coating uniformity of less than 1% across the entire wafer surface ensures stable performance in contact hole and gap-fill processes.**Semiconductor Materials**: The company has developed Self-Crosslinking SOC (Spin-On Carbon) precursor technology, essential for 3D NAND and high-stacking processes in semiconductors. This technology fundamentally resolves issues of gas generation and impurities during high-temperature processes, achieving an ultra-high purity environment. It demonstrates approximately 95% etching resistance compared to conventional ACL (Amorphous Carbon Layer) and less than 2.5% weight loss during high-temperature bake processes above 400℃. Maintaining coating uniformity of less than 1% across the entire wafer surface ensures stable performance in contact hole and gap-fill processes.
- **Secondary Battery Materials**: KOYJ is pursuing new business in the nano metal oxide field, specifically for anode material additives in secondary batteries. Through a technology licensing agreement with KAIST, the company is securing competitiveness in this new secondary battery material business.**Secondary Battery Materials**: KOYJ is pursuing new business in the nano metal oxide field, specifically for anode material additives in secondary batteries. Through a technology licensing agreement with KAIST, the company is securing competitiveness in this new secondary battery material business.
- Core Advantages
- **Proprietary Ultra-Precision Coating and Patterning Technology**: KOYJ has expanded its business in the optical film sector and achieved continuous growth through its unique ultra-precision ultra-thin film coating technology. The proprietary coating solution formulation technology, which involves directly blending coating solutions according to the characteristics of film substrates, is a key factor in its production cost and quality competitiveness.**Proprietary Ultra-Precision Coating and Patterning Technology**: KOYJ has expanded its business in the optical film sector and achieved continuous growth through its unique ultra-precision ultra-thin film coating technology. The proprietary coating solution formulation technology, which involves directly blending coating solutions according to the characteristics of film substrates, is a key factor in its production cost and quality competitiveness.
- **High-Efficiency Light Guide Plate Manufacturing Technology**: The company's development of an extrusion patterning process enables the creation of ultra-slim light guide plates with a thickness of 0.3T and fine patterns at a 40㎛ level. This technological capability maximizes light uniformity and transmission efficiency, while simultaneously achieving product weight reduction and slimness, representing a distinctive strength.**High-Efficiency Light Guide Plate Manufacturing Technology**: The company's development of an extrusion patterning process enables the creation of ultra-slim light guide plates with a thickness of 0.3T and fine patterns at a 40㎛ level. This technological capability maximizes light uniformity and transmission efficiency, while simultaneously achieving product weight reduction and slimness, representing a distinctive strength.
- **Innovative Material Development for Semiconductor Ultra-Fine Processes**: The Self-Crosslinking SOC precursor technology induces reactions solely through the polymer's intrinsic structure, without external cross-linking agents or catalysts, thereby preventing the generation of chemical impurities. Its ability to create a high-purity environment and provide stable performance even at high temperatures above 400℃ positions it as a core solution in the next-generation memory market.**Innovative Material Development for Semiconductor Ultra-Fine Processes**: The Self-Crosslinking SOC precursor technology induces reactions solely through the polymer's intrinsic structure, without external cross-linking agents or catalysts, thereby preventing the generation of chemical impurities. Its ability to create a high-purity environment and provide stable performance even at high temperatures above 400℃ positions it as a core solution in the next-generation memory market.
- **Stable Customer Network and New Business Expansion**: Based on accumulated technology and experience in optical films and light guide plates, KOYJ has established long-term trust relationships with major clients such as LG Chem and SKC. Furthermore, through collaboration with KAIST, the company is securing new growth engines in secondary battery materials and next-generation display fields, diversifying its business portfolio.**Stable Customer Network and New Business Expansion**: Based on accumulated technology and experience in optical films and light guide plates, KOYJ has established long-term trust relationships with major clients such as LG Chem and SKC. Furthermore, through collaboration with KAIST, the company is securing new growth engines in secondary battery materials and next-generation display fields, diversifying its business portfolio.
- **Production Efficiency and Cost Advantage**: The company achieves enhanced productivity and cost competitiveness through a coating speed 50% faster than competitors and a mass production yield of 97%. It possesses proprietary stirring and blending technology and UV curing device development technology, enabling low-temperature film curing and high-speed coating.**Production Efficiency and Cost Advantage**: The company achieves enhanced productivity and cost competitiveness through a coating speed 50% faster than competitors and a mass production yield of 97%. It possesses proprietary stirring and blending technology and UV curing device development technology, enabling low-temperature film curing and high-speed coating.
- Target Industrie
- **Display Industry**: Supply of essential optical films (prism sheets, diffuser sheets) and light guide plates for LCD and OLED display backlight units (BLU). Specifically, its technology is applied to diffusion lenses for direct-lit flat panel lighting devices in TFTLCD TVs and monitors. Optical films are also applied to various electronic device displays, including mobile phones, tablets, notebooks, and monitors.**Display Industry**: Supply of essential optical films (prism sheets, diffuser sheets) and light guide plates for LCD and OLED display backlight units (BLU). Specifically, its technology is applied to diffusion lenses for direct-lit flat panel lighting devices in TFTLCD TVs and monitors. Optical films are also applied to various electronic device displays, including mobile phones, tablets, notebooks, and monitors.
- **Semiconductor Industry**: Supply of next-generation SOC (Spin-On Carbon) precursor materials required for ultra-fine semiconductor processes, such as 3D NAND and high-stacking processes. The company provides key solutions that enhance yield and mass production stability in high aspect ratio pattern processes.**Semiconductor Industry**: Supply of next-generation SOC (Spin-On Carbon) precursor materials required for ultra-fine semiconductor processes, such as 3D NAND and high-stacking processes. The company provides key solutions that enhance yield and mass production stability in high aspect ratio pattern processes.
- **Secondary Battery Industry**: New entry into the nano metal oxide field, which involves anode material additives for secondary batteries, including related material development and supply. This expansion contributes to the growth of environmentally friendly vehicles, representing an eco-friendly business area.**Secondary Battery Industry**: New entry into the nano metal oxide field, which involves anode material additives for secondary batteries, including related material development and supply. This expansion contributes to the growth of environmentally friendly vehicles, representing an eco-friendly business area.
- **LED Lighting Industry**: Development and supply of LED lighting devices and diffusion lenses for LED flat panel lighting devices. The company's high-angle lens patent technology contributes to enhancing lighting efficiency.**LED Lighting Industry**: Development and supply of LED lighting devices and diffusion lenses for LED flat panel lighting devices. The company's high-angle lens patent technology contributes to enhancing lighting efficiency.
- **Electric Vehicle Electronic Components Industry**: Expansion of business into the future mobility industry through research and development of electric vehicle electronic components.**Electric Vehicle Electronic Components Industry**: Expansion of business into the future mobility industry through research and development of electric vehicle electronic components.
- Major Markets
- China, Taiwan, Malaysia, IndonesiaChina, Taiwan, Malaysia, Indonesia
- United StatesUnited States
- Certifications/Patents
- **Patents**: Acquired patents related to 'high-emission angle lenses' (technology for increasing the emission angle of LED light). Holds patents for optical film manufacturing devices. Acquired patents related to 'index matching films and their manufacturing methods'. Filed domestic, Chinese, and U.S. patents for pattern shapes that enhance light efficiency in the light guide plate sector. Secured 5 domestic patents related to Self-Crosslinking SOC precursor technology, with an additional international PCT patent and one new patent currently being filed. A total of 57 patent applications and 37 registrations (including 11 acquired).**Patents**: Acquired patents related to 'high-emission angle lenses' (technology for increasing the emission angle of LED light). Holds patents for optical film manufacturing devices. Acquired patents related to 'index matching films and their manufacturing methods'. Filed domestic, Chinese, and U.S. patents for pattern shapes that enhance light efficiency in the light guide plate sector. Secured 5 domestic patents related to Self-Crosslinking SOC precursor technology, with an additional international PCT patent and one new patent currently being filed. A total of 57 patent applications and 37 registrations (including 11 acquired).
- **Certifications and Awards**: Obtained ISO 14001 environmental management system certification. Designated as a top-tier venture company in Chungcheongbuk-do in 2012. Awarded as an excellent employment company in Chungcheongbuk-do in 2013. Designated as an excellent small and medium-sized enterprise by the Chungbuk Regional Small and Medium Business Administration. Received the '5 Million Dollar Export Tower' award in 2012. Received the '10 Million Dollar Export Tower' award in 2015.**Certifications and Awards**: Obtained ISO 14001 environmental management system certification. Designated as a top-tier venture company in Chungcheongbuk-do in 2012. Awarded as an excellent employment company in Chungcheongbuk-do in 2013. Designated as an excellent small and medium-sized enterprise by the Chungbuk Regional Small and Medium Business Administration. Received the '5 Million Dollar Export Tower' award in 2012. Received the '10 Million Dollar Export Tower' award in 2015.
Introduction
Location
146 Cheomdansaneop-ro, Daesowon-myeon, Cheongju, Chungcheongbuk-do, South Korea
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