Mitsubishi Electric Corp will release an LCD monitor that it claims enables to comfortably play fast-moving TV games Nov 30, 2010.
By controlling its LED backlight and using a double-speed interpolation technology (frequency: 120Hz), the monitor offers three display modes in accordance with the game to be played. The screen size and pixel count are 23 inches and 1,920 x 1,080 (full HD), respectively. Though there is no manufacturer's suggested retail price, the monitor is expected to be sold at a price of ¥118,000 (approx US$1,419).
To develop the LCD monitor, Mitsubishi Electric classified TV games into three categories and, for each category, set a priority in regard to image quality improvement technologies. The three categories are (1) shooter games, music games and other games in which lags become a serious problem, (2) role-playing games, adventure games and other games that are played for a long period of time and (3) sports games, racing games, action games and other fast-moving games.
Shooter games, music games
As for the first category, if there is a lag between movements such as firing a weapon and beating a drum and screen displays corresponding to the movements, it is a crucial problem. Therefore, Mitsubishi Electric put a priority on reducing the lag. And, for games in the first category, it does not use the double-speed interpolation technology, which can smoothly display movies but takes time to create interpolation images.
Moreover, to address the problem that fast-moving images blur on LCD monitors, the company employed an LED backlight scanning technology, which does not lower luminance much. It is a technology to repeatedly scan the light-emitting part of an LED backlight unit from top down.
Role-playing games, adventure games
For role-playing games and adventure games, the lag between inputs and screen displays is not a big problem. On the other hand, because they are played for long hours, it is important to display smooth images.
Therefore, Mitsubishi Electric used the double-speed interpolation technology with a frequency of 120Hz. It is a technology to smoothly display movies by creating interpolation images and increasing the number of frames. Also, to address the problem that fast-moving images blur on LCD monitors, the company used the same LED backlight scanning technology as used for shooter games and music games.
Sports games, racing games, action games
Because in sports games, racing games and action games, the speeds of moving images are faster than in other types of games, Mitsubishi Electric put priority on reducing residual images. Therefore, it employed an LED backlight blinking technology, which is very effective in reducing residual images.
With the technology, the backlight is lit only in a certain period of time so that the image of the previous frame hardly overlaps on the retina. The moving picture response time (MPRT) is 5.5ms, the company said.
However, because the time during which the LED backlight is off is long, the luminance decreases accordingly. Also, as in the case of shooter games and music games, the double-speed interpolation technology is not used to prevent lags.
It is possible for users to switch among the three modes in accordance with the game to be played. The LCD monitor is equipped with an IPS (in-plane switching) panel with a luminance of 350cd/m2 (in average) and a contrast ratio of 5,000:1.