Liquid Crystal Display Device

A liquid crystal display device comprising:

• a first liquid crystal display panel;
• a second liquid crystal display panel;
• a drive circuit which is mounted on the first liquid crystal display panel;
• output terminals which are mounted on the first liquid crystal display panel and to which signals outputted from the drive circuit are supplied;
• and
• connection lines which connect the output terminals and the second liquid crystal display panel,
• wherein the drive circuit includes a booster circuit part, and
• the booster circuit part is capable of changing an operational mode thereof in response to an external signal.

A liquid crystal display device comprising:

• a first liquid crystal display panel;
• a second liquid crystal display panel;
• a drive circuit which is mounted on the first liquid crystal display panel,
• output terminals which are mounted on the first liquid crystal display panel and to which signals outputted from the drive circuit are supplied;
• and
• connection lines which connect the output terminals and the second liquid crystal display panel,
• wherein the drive circuit includes a gray scale voltage generating part,
• the gray scale voltage generating part includes a plurality of amplifying circuits which output a plurality of gray scale voltages, and
• the drive circuit stops the operation of the amplifying circuits other than the amplifying circuits which output the maximum gray scale voltage and the minimum gray scale voltage among the plurality of amplifying circuits during a non-display period of the first liquid crystal display panel or the second liquid crystal display panel.

A liquid crystal display device comprising:

• a first liquid crystal display panel;
• a second liquid crystal display panel;
• a drive circuit which is mounted on the first liquid crystal display panel;
• output terminals which are mounted on the first liquid crystal display panel and to which signals outputted from the drive circuit are supplied;
• and
• connection lines which connect the output terminals and the second liquid crystal display panel,
• wherein the drive circuit includes a gray scale voltage generating part,
• the gray scale voltage generating part includes a resistance voltage dividing circuit which divides a maximum gray scale voltage and a minimum gray scale voltage so as to output gray scale voltages other than the maximum gray scale voltage and the minimum gray scale voltage, and
• the drive circuit separates the resistance voltage dividing circuit from the maximum gray scale voltage and the minimum gray scale voltage during a non-display period of the first liquid crystal display panel or the second liquid crystal display panel.