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Transparent anti-blue-light filter sheet sized 34.88 by 19.61 inches for 40 inch widescreen display

Guangzhou Goodtouch Electronics Co.,LTD

Guangzhou Goodtouch Electronics Co.,LTD GT-ABF-40 40 Inch Anti Blue Light Screen Filter

SKU CH-W06F-C1T5T

A 40-inch anti-blue-light filter measuring 34.88 by 19.61 inches blocks 400-500 nm wavelengths and adds a scratch-resistant layer for widescreen monitors

  • ColorTransparent
  • Option1 Pack
  • Blocks 400–500 nm blue light for reduced eye strain
  • 7-layer design adds radiation protection and anti-static performance
  • Clear anti-scratch coating shields screen from children and pets
  • Bubble-free double-sided tape install aligns in seconds
  • Fits 40 inch 16:9 displays measuring 886 × 498 mm

40-Inch Anti-Blue Light Filter

The Deyowo GT-ABF-40 is a transparent screen protector designed for 40-inch widescreen monitors and TVs with a 16:9 aspect ratio. It targets users who want to reduce exposure to blue light emitted during extended viewing sessions. The filter also serves as a physical shield against scratches from children or pets. Installation uses pre-applied double-sided tape for a bubble-free fit.

Blocks 400–500 nm Blue Light

The filter covers the 400 nm to 500 nm wavelength range to help relieve eye strain and support better sleep patterns. Its actual dimensions are 34.88 inches (886 mm) wide by 19.61 inches (498 mm) high, so buyers must verify these measurements against their visible screen area before purchase. The seven-layer construction adds anti-static properties alongside the blue-light blocking function. It does not address radiation types outside the specified light spectrum.

Exact 34.88 x 19.61 Inch Fit

Compatibility depends entirely on matching the filter's 34.88-inch width and 19.61-inch height to the monitor's active viewing area, excluding any bezel or frame. The product is made for flat or raised bezels but requires precise alignment during installation. If the screen's viewable area differs from these figures, the filter will not cover it correctly. No other mounting method or size adjustment is provided.

Highlights

  • Blocks 400–500 nm blue light for reduced eye strain
  • 7-layer design adds radiation protection and anti-static performance
  • Clear anti-scratch coating shields screen from children and pets
  • Bubble-free double-sided tape install aligns in seconds
  • Fits 40 inch 16:9 displays measuring 886 × 498 mm

Specifications

BrandDeyowo
ModelGT-ABF-40
ColorTransparent
Option1 Pack

Questions about this item

Will the 34.88 x 19.61 inch filter cover the active area of my 40 inch 16:9 monitor?

Yes, the filter dimensions match a 40 inch 16:9 widescreen; measure your viewable height and width excluding the bezel to confirm.

How can I verify the 400nm-500nm blue light blocking is active after installation?

The filter uses a 7-layer design to block that wavelength range; you should notice reduced eye strain and improved sleep quality during use.

Does the package include the double-sided tape strips or must I buy them separately?

The filter ships with pre-applied double-sided tape on all four edges for bubble-free mounting; no extra adhesive is required.

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