Liquid crystal display device

A liquid crystal display device comprising:

• a display section having a predetermined applied voltage-brightness characteristic about an applied voltage to a liquid crystal and a brightness;
• and
• a driver circuit for driving the display section;
• wherein the driver circuit generates output voltages whose number is equal to a predetermined gray level number M based on reference voltages, and selects one of the output voltages and outputs the selected one to the display section in response to an inputted image signal, thereby displaying an image on an M-level gray scale from a 0 level as a lowest level to an (M−1) level as a highest level;
• the applied voltage-brightness characteristic of the display section comprises a zero brightness change region where brightness change responsive to change of the applied voltage to the liquid crystal is approximately zero, and an imaginary reference voltage lower than the reference voltage corresponding to the lowest level is located in the zero brightness change region;
• and
• the reference voltage corresponding to a next higher level to the lowest level, which is higher than the lowest level by one, is set to be lower than the imaginary reference voltage and is set in such a way that a brightness at the next higher level is higher than a brightness at the lowest level by a predetermined brightness difference.

A liquid crystal display device is provided, which comprises:

• a display section having a predetermined applied voltage-brightness characteristic about an applied voltage to a liquid crystal and a brightness;
• and
• a driver circuit for driving the display section;
• wherein the driver circuit generates Output voltages whose number is equal to a predetermined gray level number M based on reference voltages, and selects one of the output voltages and outputs the selected one to the display section in response to an inputted image signal, thereby displaying an image on a M-level gray scale from a 0 level as a lowest level to a (M−1) level as a highest level;
• the applied voltage-brightness characteristic of the display section comprises a first zero brightness change region and a second zero brightness region, where brightness changes responsive to change of the applied voltage to the liquid crystal are approximately zero, respectively;
• the reference voltage corresponding to the highest level is located in the first zero brightness change region, and an imaginary reference voltage which is lower than the reference voltage corresponding to the lowest level is located in the second zero brightness change region;
• the reference voltage corresponding to a next lower level to the highest level, which is lower than the highest level by one, is set in such a way that a brightness at the next lower level is lower than a brightness at the highest level by a first predetermined brightness difference;
• and
• the reference voltage corresponding to a next higher level to the lowest level, which is higher than the lowest level by one, is set in such a way that a brightness at the next higher level is higher than a brightness at the lowest level by a second predetermined brightness difference.