A prism sheet is an optical component in LCD backlight units that redirects and focuses light to enhance brightness and uniformity.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Haze | <1% | |
| Thickness | 0.062-0.250 mm | |
| Prism Angle | 90-110 degrees | |
| Prism Pitch | 20-50 μm | |
| Transmittance | ≥90% | |
| Surface Hardness | ≥3H pencil hardness | |
| Thermal Stability | -30°C to 85°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A lighting assembly that provides illumination for LCD panels to make the display visible.
A backlight unit is an essential component of LCD display panels that generates and distributes light behind the liquid crystal layer.
Illumination subsystem that provides uniform light to LCD panels for visibility.
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The primary function is to collimate and redirect light from the light guide plate toward the LCD panel, increasing on-axis brightness and improving display uniformity while reducing power consumption.
Yes, prism sheets are commonly used in both CCFL and LED-backlit LCD displays. In LED-backlit units, they help manage the directional characteristics of LED light sources to achieve uniform illumination.
While both are optical films in BLUs, a diffuser sheet scatters light to eliminate hotspots and create uniform illumination, whereas a prism sheet collimates light to enhance brightness in the viewing direction. They often work together in a BLU stack.
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