DISPLAY DRIVING INTEGRATED CIRCUIT AND METHOD FOR DETERMINING WIRE CONFIGURATION OF THE SAME

摘要

A display driving IC and a method for determining wire configuration thereof are provided to enhance quality of the display driving IC by detecting foreign substances having high resistance between reference voltage wires. A display driving IC(Integrated Circuit) includes a gray scale display reference voltage generating circuit(23), a D/A(Digital to Analog) converter(21), and n reference voltage wires. The gray scale display reference voltage generating circuit generates gray scale display reference voltages with n gray scales. The D/A converter converts display data to an analog signal based on the gray scale display reference voltages. The n reference voltage wires are arranged in parallel and supply the respective gray scale display reference voltages to the D/A converter. The n reference voltage wires are arranged such that the adjacent two reference voltage wires have a voltage difference equal to or greater than two gray scales.