29-4: Image Blurring Induced by Scattering Anti-Glare Layers

Abstract

We introduce the scattering-induced spreading of a narrow linear light source in transmission as an alternative method for characterization of image blurring induced by anti-glare layers. This novel method is compared to the recently presented concept of pixel crosstalk and to the transmissive scatter distribution function of anti-glare layers measured in two different ways. The reduction of transmittance modulation is presented as an additional method for characterization of image blur. The ranking of the results is compared to a generalized haze level of the AG samples as obtained from the transmittance distribution functions measured with two different methods.

53‐1: Reflection Measurements in ISO TC159 SC4 WG2 and IEC TC110

“…by the materials used for the internal black-mask) and that scattering anti-glare layers on top of the LCD front polarizer reduce the negative effects of small aperture light sources while, at the same time, reducing contrast under hemispherical illumination. This apparent contradiction is the reason why scattering anti-glare layers have to be carefully designed and optimized in order to profit from the advantages with still acceptable amounts of negative effetcs [5]. [6].…”

Characterization of electronic displays using CMOS single‐photon avalanche diode image sensors

“…High-performance image sensors (cameras) have been employed for display metrology, especially for Mura, motion blur measurements where single-point sensors cannot be applied. [15][16][17] Meanwhile, current displays are evolving towards HDR, high resolution (4 k and beyond), and high frame rate (>100 Hz). Image sensors with high sensitivity and high frame rate are therefore required for optical characterization of display properties such as dynamic range, gamma curve, flicker, uniformity, and so on.…”

“…High‐performance image sensors (cameras) have been employed for display metrology, especially for Mura, motion blur measurements where single‐point sensors cannot be applied . Meanwhile, current displays are evolving towards HDR, high resolution (4 k and beyond), and high frame rate (>100 Hz).…”

P‐30: Surface Treatment on High Resolution Display with no Visual Sparkle and Excellent Optical Property

“…4 ,5 Based on his former research, Becker introduced the scattering-induced spreading of a narrow linear light source in transmission as an alternative method for evaluation of AG-surface sparkle. 6 Chiang introduced a novel sparkling evaluation method on TFT LCD, showing high linear relationship with human factors and higher degree of consistency than human eye. 7 Figure 1 is the principle of sparkle in the display.…”