What is LCD spacer?
Spacer supports the two glass panels in a liquid crystal display(LCD). Uniform microspheres are the ideal material used in LCD screens to provide a precision spacing. It will make a flatter LCD screen. If there is no LCD spacer, the panels will dent and make the screen uneven.(see below) Uniform microspheres between glass panels
Requirement of LCD spacer microspheres:
- Spherical microspheres with no agglomeration
- Uniform particle size
- High purity. No liberation of alkaline ions; The content of uranium, thorium and other radioactive elements are less than 0.1 ppb.
- The surface is rich in silicon hydroxyl groups (-SiOH), assuring excellent reaction with silane and titamate coupling agents. It is also possible to bond functional molecules via surface OH groups as a carrier for synthesizing complex particles.
- The microspheres can withstand high temperature. Weight reduction is hardly observed in the temperature range from 200 to 800 ℃ which makes it especially suits for the use in epoxy seals requiring high curing temperatures.
To sum up, our nonporous monodisperse silica microspheres and nonporous crosslinkes PS/DVB microspheres can be the ideal materials for LCD spacer.