Patent ID: 8610643

Claim:
A display device, comprising: a display panel assembly; a driving unit which drives the display panel assembly; and a serial peripheral interface which receives an external driving signal, controls the driving unit, and comprises a plurality of registers, wherein the plurality of registers is divided into at least two blocks, wherein the driving signal comprises a serial data input signal, which comprises a block selecting bit as a single bit and data bits, wherein the block selecting bit is configured to select one block of the at least two blocks allowing the data bits to be applied to the registers associated with the selected one block, and wherein when the block selecting bit is a first predetermined binary value, the data bits are recognized as block address bits which indicate an address of the one block, and when the block selecting bit is a second predetermined binary value different from the first predetermined binary value, the data bits are recognized as command bits which control the driving unit, wherein the display panel assembly comprises a pixel comprising a switching element; and the driving unit comprises: a driving voltage generator which generates driving voltages which drive the display panel assembly, a gate driver which generates a gate signal based on one of the driving voltages and applies the gate signal to the switching element, a gray voltage generator which generates a gray voltage based on one of the driving voltages, a data driver which generates a data voltage based on the gray voltage and applies the generated data voltage to the switching element, and a signal controller which controls at least one of the driving voltage generator, the gate driver, the gray voltage generator, and the data driver, and wherein the at least two blocks comprise a first block and a second block and a command bit input to the first block comprises data which controls the signal controller and a command bit input to the second block comprises data which controls the generation of the driving voltages.