Abstract: The present invention discloses a respiratory mask to connect a user and a breathing tube for receiving a first gas and releasing a second gas, so as to provide an user's respiratory system to exchange gas. It comprises a main part, an air chamber exchange part, an insert and a clamping part. The main part provides a first, second, and third openings that are communicated each other. The first opening connects to the breathing tube to receive the first gas from the breathing tube. The air chamber exchange part provides an exhaust assembly to relieve pressure according to an internal air pressure of the air chamber exchange part. The insert connects to the user's nose so as to direct the first gas to the user or direct the second gas from the user to the air chamber exchange part. The clamping part connects to the user's mouth.

Abstract: A method for correcting color characteristics of a flat panel display comprises the steps of using a signal generating device to generate an input signal to the display and a color measurement instrument to measure color displayed by the display to obtain an output value; obtaining corrected color characteristic values necessary for the display to display a target output value Txyz through the relation of an inverse function RGB=f?1(XYZ) between the input signal RGB and output value XYZ, and storing the corrected color characteristic values and an identification code of the display into a storage medium. The corrected color characteristic values are downloaded to a hard disk of a computer from the storage medium according to the identification code; and the computer uses a driver of the display to activate the flat panel display to display a corrected color according to the corrected color characteristic values.

Abstract: A method for correcting color characteristics of a flat panel display comprises the steps of using a signal generating device to generate an input signal to the display and a color measurement instrument to measure color displayed by the display to obtain an output value; obtaining corrected color characteristic values necessary for the display to display a target output value Txyz through the relation of an inverse function RGB=f?1(XYZ) between the input signal RGB and output value XYZ, and storing the corrected color characteristic values and an identification code of the display into a storage medium. The corrected color characteristic values are downloaded to a hard disk of a computer from the storage medium according to the identification code; and the computer uses a driver of the display to activate the flat panel display to display a corrected color according to the corrected color characteristic values.