Display device

A display device that receives data from a higher-level device to display, the display device comprising:

• a drawing data instruction generator that generates a drawing instruction order;
• a receiver that receives data from the higher-level device;
• a variation pattern that varies at regular intervals to be displayed;
• a drawing variation instruction unit that generate a variation pattern selection instruction order that displays the variation pattern to transmit to the drawing data instruction generator;
• a drawing control unit that generates drawing data based on the drawing instruction order transmitted from the drawing data instruction generator;
• a drawing memory that stores the drawing data;
• and
• a display unit that displays the drawing data, wherein
• the drawing data instruction generator receives the variation pattern selection instruction order from the drawing variation instruction unit, and generates a drawing instruction order row including the variation pattern selection instruction order to transmit to the drawing control unit, and
• the drawing control unit generates drawing data including the variation pattern to output to the display unit.

A display device that receives data from a higher-level device to display, the display device comprising:

• a drawing data generating unit;
• a display unit that displays drawing data;
• and
• a comparator that compares whether input signals are coincident, wherein
• the drawing data generating unit includes:
• a receiver that receives data from the higher-level device;
• a drawing control unit that converts the data received from the higher-level device into drawing data;
• a drawing memory that stores the drawing data;
• and
• a data holding unit that temporarily holds input data, wherein
• the display unit includes:
• a display panel;
• and
• a data conversion unit that receives a drive signal that drives the display panel to convert into drawing data,
• one output signal of the drawing data generating unit regarding the drawing data is transmitted to the display unit, and another output signal is transmitted to the data holding unit,
• an output of the data holding unit and an output of the data conversion unit are input to the comparator, and
• the comparator outputs a comparison result as a detection signal outside.