1. Field of the Invention
The present invention relates to an apparatus for automatically adjusting display parameters, and more particularly to an apparatus for automatically adjusting display parameters relying on visual performance and its method.
2. Description of the Related Art
Vision is the primary navigating system of human body, which provides 80% to 90% information for a human in his whole life. The improvement of visual technologies affects human activities and performance in all aspects. As the exponential growth of demands in present social education and working, human vision system works in a more difficult environment. Computer becomes a primary solution to provide service and information, the population of using computers in working, family, shopping and news reading grows rapidly, and also the services and information provided from computers increasingly grow. As the exploding growth of the use of the computers and other visual information gathering activities, the demands of visual systems grows greatly. Visual Display Terminal (VDT) is the primary medium for human to communicate with the computer, and Cathode Ray Tube (CRT) is the most popular VDT. But CRT is restrained in portable products due to its bulkiness and other disadvantages. Flat Panel Display (FPD) already overcomes a lot of drawbacks of CRT and associates with a notebook and word processor in many working fields. As such, FPD becomes an electronic device the modern people use every day. However, the display parameter settings, like brightness and contrast, can not meet each user's demands. The user's visual performance is reduced as time for using the display increases, even bringing serious visual fatigue.
Generally the display parameter adjustment is for the purpose of reducing power consumption. The power supply or backlight is turned on or turned off depending on whether or not the display is being used. Otherwise, the intensity of the backlight is adjusted in accordance with the environmental illumination so as to save power. Alternatively, the display parameters are manually adjusted depending on the individual favor. However, this is not most appropriate for human eyes.
Accordingly, it is desired to develop a display whose display parameters can be adjusted at any time in accordance with an individual visual demand.