Liquid crystal driving circuit and load driving circuit

A liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising:

• a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data;
• a shift register configured to output a shift pulse obtained by successively shifting a pulse signal;
• a plurality of first latch circuits configured to latch said digital grayscale data in synchronization with the shift pulse outputted from each output terminal of said shift register;
• a second latch circuit configured to latch respective outputs of said plurality of first latch circuits substantially at the same timing;
• a decoder configured to generate a decode signal based on an output of said second latch circuit;
• an output selection circuit configured to output a desired analog voltage for each of said plurality of signal lines based on an output of said decoder;
• and
• a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside,
• wherein each of said first latch circuits comprises at least latch sections corresponding to a maximum grayscale number, and
• the number of said latch sections brought to an enable state is set to be variable based on an output signal of said grayscale mode signal.