ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND DRIVING METHOD THE SAME

• Main Authors: KANG, CHANG HEON, KWON, MARDIN
• Format: Patent
• Language: English; Korean
• Published: 07.10.2014
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; PHYSICS; SEALS

The present invention relates to an OLED display device and a driving method thereof, and each of a plurality of pixels comprising a light emitting element and a pixel driving circuit driving the light emitting element, wherein the pixel driving circuit includes: a driving switching element serially connected between a high potential voltage supply line and a low potential voltage supply line together with the light emitting element; a first switching element connecting a data line to a first node in response to an initializing signal; a second switching element connecting the first node to a second node connected to a driving switching device gate in response to a first scan signal; a third switching element connecting the first node to a third node connected to a drain of the driving switching element in response to a second scan signal; a fourth switching element connecting the third node to an anode of the light emitting element in response to a light emitting signal; a first capacitor connected between the high potential voltage supply line and the second node; and a second capacitor connected between the data line and the first node.