Disclosed are an optical filter including a near infrared absorption layer on a polymer film. The polymer film has a* of about -5.0 to about +5.0 and b* of about - 5.0 to about +5.0 in a color coordinate expressed by a CIE Lab color space. The near infrared absorption layer may be configured to transmit light in a visible region and to selectively absorb at least one part of light in a near infrared region. The near infrared absorption layer includes a first near infrared absorption material including a copper phosphate ester compound and a second near infrared absorption material including at least two different organic dyes. The second near infrared absorption material has a maximum absorption wavelength (λmax) in a wavelength region of about 650 nm to about 1200 nm. An electronic device may include the optical filter.
本发明公开了一种光学滤光片,包括聚合物薄膜上的近红外吸收层。聚合物薄膜在用 CIE Lab 色彩空间表示的色坐标中,a*约为-5.0 至约 +5.0,b*约为-5.0 至约 +5.0。近红外吸收层可配置为透射可见光区域的光,并选择性地吸收近红外区域的至少一部分光。近红外吸收层包括第一近红外吸收材料(包括
磷酸铜酯化合物)和第二近红外吸收材料(包括至少两种不同的有机
染料)。第二近红外吸收材料的最大吸收波长(λmax)在约 650 纳米到约 1200 纳米的波长区域内。电子设备可包括滤光片。