| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital/analog converter circuit, data driver and display device, wherein DNL deterioration can be prevented by allowing the area to be reduced by reducing the number of reference voltages.SOLUTION: Reference voltages of a reference voltage aggregate are divided into reference voltage groups 20-1 to 20-(zS+1). A decoder 10 is provided correspondingly to each of the reference voltage groups and includes: sub decoders 11-1 to 11-(zS+1) for selecting a reference voltage which is assigned to a column corresponding to a value of a first bit group of an input digital signal, respectively, from the reference voltages of the reference voltage group; and a sub decoder 13 which inputs outputs of the sub decoders and selects first and second voltages, from among the reference voltages selected by the sub decoders, in accordance with a value of a second bit group of the input digital signal. A interpolation circuit 30 inputs the first and second voltages selected by the decoder and outputs voltage level wherein two voltages are interpolated at interpolation ratio of one to one. |
