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. . Transmissive 2.9-Type nHD (640 × 360) Mobile Phone LCD Module Features Multi-Resolution Support IC, Wide Viewing Angle, and the VSPEC IIITM High-Contrast LCD Mode ACX399AKZ Higher resolution, wider viewing angles, and higher contrast are being demanded more strongly than ever for mobile phone displays. The newly-developed Sony ACX399AKZ is the first mobile phone display to adopt VSPEC III TM, and achieves OLED levels of optical characteristics despite the high resolution of 253 ppi. It also supports the FlatLinkTM *¹ 3G interface and includes a driver IC that provides an automatic backlight brightness control function. *1 FlatLink is a trademark of Texas Instruments Incorporated.

ACX399AKZ . . ■ New LCD mode (VSPEC IIITM) adopted ■ Multi-resolution support IC ■ Automatic backlight brightness control function IC ■ Supports the FlatLinkTM 3G interface * “VSPEC” and are trademarks of Sony Corporation.     New LCD Mode (VSPEC IIITM) Adopted The ACX399AKZ adopts the VSPEC IIITM wide viewing angle mode. This achieves OLED levels of optical characteristics despite the high resolution pixels. The contrast is 1000:1 and the device achieves a viewing angle of 160° in the up/down and/or right/left directions. The response time for intermediate levels is significantly improved, even compared to the existing VSPEC II TM wide viewing angle mode. (See table 2.) Multi-Resolution Support IC Sony developed and includes in the ACX399AKZ an IC that supports the following resolutions: nHD (640 × 360), HVGA (320 × 480), VGA (480 × 640/640 × 480), and WVGA (480 × 800/800 × 480). (See table 3.) This is a highly compatible IC and will contribute to Sony's high-end LCD module products in the future. Automatic Backlight Brightness Control Function IC Sony has adopted this technology, which optimizes the backlight brightness and video signal together according to the displayed image and reduces current consumption without adversely affecting picture quality. (See figure 1.) This can contribute to longer battery life in mobile phones. Supports the FlatLinkTM 3G Interface (CDP) The ACX399AKZ adopts the FlatLinkTM 3G interface, which is a serial transmission technique using high-speed differential signals to support the transmission of the large volumes of data due to the ultrahigh resolution and multicolor display. (See table 1.) Sony also included EMI countermeasures designed using simulation and achieved low EMI characteristics.     •••• Mr. Jisaki •••• We have developed an attractive LCD module product by combining the VSPEC IIITM LCD mode for the first time in a mobile phone device and a highly general newly-developed LCD driver. The main feature of this module is that it achieves optical characteristics equivalent to those of organic EL displays. In addition to the optical characteristics, it features low power consumption and low EMI, and thus is a design that takes end product design into consideration. I strongly recommend that you consider using this module. See all articles with figures and tables. Vol.57

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