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. . Transmissive LED Backlit 7.54 cm (3.0-Type) LCD Module Features the 3:2 Aspect Ratio Used by 35mm Film and Digital Single-Lens Reflex Cameras and Achieves an Extremely Wide Viewing Angle ACX405AKM The ACX405AKM is a 7.54 cm 3:2 aspect ratio active matrix panel module with a built-in low-temperature polysilicon transistor driver with a dedicated backlight. This module adopts the Sony-developed VSPEC III™ wide viewing angle technology, which has been well-received in the digital still camera display market and achieves ultrafine pixels with 1.03M dots (720 × RGB × 480) with the same 3:2 aspect ratio as the images taken by 35mm film cameras and digital single-lens reflex cameras. This module also improves the viewing angle from diagonal directions over current VSPEC III™ models.

ACX405AKM . . ■ 3:2 aspect ratio and ultrafine pixels with 1.03M dots (287 ppi) ■ Wide viewing angle of 160° in all directions (VSPEC III™) ■ Improved ambient light viewability due to a design that emphasized brightness ■ Minimal changes in whiteness with gradation ■ Backlight light blocking design * is a trademark of Sony Corporation.     3:2 Aspect Ratio and Ultrafine Pixels with 1.03M Dots (287 ppi) The ACX405AKM has the same 3:2 aspect ratio as that of 35mm film cameras and digital single-lens reflex cameras. The number of pixels displayed is 720(H) × RGB × 480(V), and it achieves ultrafine pixels with a resolution of 287 ppi based on a pixel pitch of 29.5 (H) × 88.5 (V) µm, and thus provides smooth and attractive image display. Wide Viewing Angle of 160° in All Directions (VSPEC III™) Sony has improved the viewing angle in this display over current models using VSPEC III™ (wide viewing angle LCD mode adopted) in the diagonal directions, and this panel achieves a viewing angle of 160°(CR >100) in all directions. (See figure 2.) Viewing angle and chromaticity variations have been reduced compared to current models, and attractive image display is maintained even as the viewing angle is changed. (See figure 3.) Improved Ambient Light Viewability Due to a Design that Emphasized Brightness Sony adopted a high-brightness design that focused on viewing under outdoor conditions as a result, the ACX405AKM achieves a module brightness of 620 cd/m2 by adopting a high transmittivity design, a 50% NTSC color gamut, and a high brightness LED. Also, viewability in outdoor conditions is improved by the combination of the high-brightness design mentioned above and suppressing the majority of the interconnects that reflect ambient light within the pixels. Minimal Changes in Whiteness with Gradation Compared to the earlier model, in which the whiteness would shift with gradations, in the ACX405AKM, the changes with gradation are held to an absolute minimum by design optimizations. Backlight Light Blocking Design At the same time as being a high-brightness design, Sony adopted technologies for thoroughly blocking light from the backlight so that extraneous light cannot be seen from gaps in the frame. (See figure 4.)       •••• Mr. Itogawa•••• This is a new concept product that adopts a new aspect ratio. Compared to current products, this new device achieves significantly improved visibility characteristics (contrast and color shift). While there were aspects that presented severe technological difficulties and development was not easy, the project members overcame these many difficulties through their efforts and we were able to create a product that achieved all of its original design specifications. I strongly urge you to look into the high picture quality 3:2 aspect ratio ACX405AKM. See all articles with figures and tables. Vol.60

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