US 2014/0176617 A1 · ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF

Abstract

Disclosed is an organic light emitting display device. The organic light emitting display device includes a display panel arranged to include a plurality of unit pixels having red, green, blue, and white sub-pixels, a four-color data converter configured to convert input data of red, green, and blue of each unit pixel into data of red, green, blue, and white respectively corresponding to the red, green, blue, and white sub-pixels, and a panel driver configured to accumulate data of each of the sub-pixels at every accumulation period, store the accumulated data in a memory, decide a color correction mode for correcting a color of each unit pixel on the basis of the accumulated data of the white sub-pixel stored in the memory, drive the white sub-pixel of each unit pixel according to the decided color correction mode, and selectively drive the red, green, and blue sub-pixels.

Claims10

Dependent claims

An organic light emitting display device comprising:

a display panel arranged to include a plurality of unit pixels having red, green, blue, and white sub-pixels comprising different organic light emitting elements;
a four-color data converter configured to convert input data of red, green, and blue of each of the plurality of unit pixels into data of red, green, blue, and white respectively corresponding to the red, green, blue, and white sub-pixels of each unit pixel;
and
a panel driver configured to accumulate data of each of the sub-pixels supplied from the four-color data converter at every accumulation period, store the accumulated data in a memory, decide a color correction mode for correcting a color of each unit pixel on the basis of the accumulated data of the white sub-pixel stored in the memory, drive the white sub-pixel of each unit pixel according to the decided color correction mode, and selectively drive the red, green, and blue sub-pixels simultaneously with the driving of the white sub-pixel.

1 more element

A method of driving an organic light emitting display device, including a unit pixel that includes red, green, blue, and white sub-pixels having different organic light emitting elements, the method comprising:

performing an A operation of converting input data of red, green, and blue of the unit pixel into data of red, green, blue, and white respectively corresponding to the red, green, blue, and white sub-pixels of the unit pixel;
performing a B operation of accumulating data of each of the sub-pixels supplied from the four-color data converter at every accumulation period, and storing the accumulated data in a memory;
and
performing a C operation of deciding a color correction mode for correcting a color of the unit pixel on the basis of the accumulated data of the white sub-pixel stored in the memory, driving the white sub-pixel according to the decided color correction mode, and selectively driving the red, green, and blue sub-pixels simultaneously with the driving of the white sub-pixel.

1 more element

Dependencies are inferred from the claim text.

Organic light emitting display device and driving method thereof

Life of this patent

Organic light emitting display device and driving method thereof

Life of this patent

Abstract

Claims10