DISPLAY DEVICE AND DRIVE METHOD THEREFOR

• Main Authors: SUNG JUN-YOUNG, LIM JAE KEUN, KIM JONG KYU
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2020
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PHYSICS; SEALS; SEMICONDUCTOR DEVICES

To provide a display device and a drive method for the same with which it is possible to control the emission of light without separately providing an emission control transistor and an emission control drive unit.SOLUTION: A display device according to one embodiment of the present invention includes pixels, each of the pixels including a first, a second and a third transistor the gate electrode of which is connected to a first node, one electrode is connected to a first power supply line and other electrodes are connected to a second node, a storage capacitor one electrode of which is connected to the first node and other electrodes are connected the second node, and a light-emitting diode the anode of which is connected to the second node and cathode is connected to a second power supply line. The second and third transistors are in a turn-on state in a first period of one frame period, the second transistor is in a turn-off state and the third transistor is in a turn-on state in a second period of the frame period.SELECTED DRAWING: Figure 3 【課題】別途の発光制御トランジスタと発光制御駆動部を備えることなく、発光を制御可能な表示装置及びその駆動方法に関する。【解決手段】本発明の一実施形態による表示装置は、画素を含み、それぞれの画素はゲート電極が第１ノードに接続され、一電極が第１電源線に接続され、他の電極が第２ノードに接続される第１トランジスタと、第２トランジスタと、第３トランジスタと、一電極が上記第１ノードに接続され、他の電極が上記第２ノードに接続されるストレージキャパシタと、アノードが上記第２ノードに接続され、カソードが第２電源線に接続される発光ダイオードと、を含み、上記第２トランジスタ及び上記第３トランジスタは、一フレーム期間の第１期間においてターンオン状態であり、上記フレーム期間の第２期間において、上記第２トランジスタはターンオフ状態であり、上記第３トランジスタはターンオン状態である。【選択図】図３