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News & Events

What is COF IC and how it is differs

In Jul 2019, Bolymin announce EOL for TAB/ TCP Modules due to EOL of IC from original supplier. At the same time, we offered TAB Modules to be replaced with COF (chip-on-film) Modules.

COF and TAB Modules use same controller IC body, yet different package. We are already working with customers to provide samples. 

Lot of customers asked us what COF IC is and how it will be different from TAB/ TCP IC. This article talk about the same.

TAB also known as TCP Vs COF -Packaging  

TAB (Tape Automated Bonding) also known as TCP (tape carrier package) and COF (chip-on-film) are both IC packaging technology and produced by reel to reel method. It utilizes FPC (flexible printed circuit film) for packaging IC chips.

The dimension of COF is similar to that of TAB/ TCP. However:   

  • TCP is a three-layer structure, and COF is a two-layer structure
  • The thickness of COF is thinner compared to TAB/TCP but still it provides higher density and better flexibility and can be easily bent.
  • IF TAB/ TCP require bending, we need to add more slits which not only increase the length but also have higher cost.


 1. What is the replacement for TAB IC?
Ans: TAB IC can be replaced with COF Modules. Bolymin have a ready solution for the same. 

Other News 

2020 Chinese New Year Office Closure Notice

Please be informed that Bolymin will be closed from 23-Jan-2020 to 02-Feb-2020 for Chinese New Year Holiday. Last shipment day before Chinese New Year is 21-Jan-2020 and and first shipment day after Chinese New Year is 4-Feb-2020. Thank you for your kind attention and wish you a Happy & Prosperous New Year!

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Upgrade Monochrome LCD to Color TFT LCD

Bolymin BTC series with a built-in control board is designed to overcome these challenges. It allows a smooth upgrade of 240128 monochrome LCD to 4.3” or 5” TFT LCD or 320240 monochrome LCD to 5.6” Color TFT LCD.

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New Product Release: BC2004H

BC2004H is 20×04 Character COB (Chip on board) LCD Display Module with metal frame. It is a High-Contrast FSTN (Film Compensated STN) and comes with built-in controller SSD1803. It has 4-bit and 8-bit and serial SPI-interface options.

BC2004H offers built-in icons (arrows, timer, message etc.).

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Bolymin TFT Module Coding System

Bolymin offers more than 100 standard TFT Modules in its catalog and also offer customization service. TFT Coding system is designed to help the customer look for the right part number based on their requirements.
Standard TFT sizes range from 0.96” to 10.1”

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LED Display Module

Bolymin – LED Display Module

LEDs are flat panel displays that emit visible light when an electric current passes through the light-emitting diodes. Bolymin LED Display Module consists of LED Display, PCB, IC and it is connected through the SPI interface. Compared to LCD displays LED displays are brighter, have a wider viewing angle and visible from a greater distance. However, the downside is they are resource-hungry.

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