The new TFT LCD module enables switching of viewing angle from wide to narrow in accordance with display contents, use and application of the LCD.
NEC LCD Technologies has realized the new LCD module by its own unique value integrated TFT-LCD (VIT) technology, along with the addition of a new viewing angle-switching control on the polarizer adjacent to the backlight system. The angle-switching control enables the light from the backlight system to be switched from a diffused pattern to a straight pattern by control signals, allowing easy switching of the viewing angle mode from that of wide to narrow.
Recently, the use of industrial automatic processing equipment incorporating LCDs, such as ATMs and ticketing machines, has been increasing dramatically in public spaces like stores, hotels and airports. In addition, security concerns have escalated with the increased possibility of information being viewed by third party bystanders, and countermeasures such as the use of film to limit the screen viewing angle have been adopted. Meanwhile, LCDs are increasingly being used to display public information and advertisements when terminals are not in use to enhance business model value. However, due to the films used on display screens, such public information can only be viewed by the person actually using the terminal.
This has brought about a need for LCD devices that address two divergent needs - secure viewing of personal information achieved by a narrow angle mode and broad viewing of public information realized by a wide angle mode. Various new technologies have been introduced to address this need; however, none fully prevents the viewing of personal information while also allowing broad display of public information.
The new LCD module will be displayed at FPD International 2007, which is being held at the Pacifico Yokohama, Japan, from October 24 - 26.