Pixel circuit and driving method thereof, and display apparatus

A technology of pixel circuit and driving method, which is applied in the field of display, and can solve problems such as slowness, reduction of display effect and quality of display devices, and difficulty in accurately writing potentials, etc.

CN104021757APending Publication Date: 2014-09-03BOE TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-09-03

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Abstract

The invention relates to the technical field of display, is applied to manufacturing a display panel, and discloses a pixel circuit and a driving method thereof, and a display apparatus, for reducing a difference between output data and write-in data of an integrated circuit. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, a storage capacitor and a luminescent device.
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Description

technical field

[0001] The present invention relates to the field of display technology, in particular to a pixel circuit, a driving method thereof, and a display device. Background technique

[0002] With the rapid progress of display technology, semiconductor element technology, which is the core of the display device, has also been greatly improved. For existing display devices, Organic Light Emitting Diode (OLED) is a current-type light-emitting device, because of its self-illumination, fast response, wide viewing angle and the ability to be fabricated on flexible substrates, etc. characteristics and are increasingly being used in the field of high-performance displays. OLED can be divided into PMOLED (Passive Matrix Driving OLED, passive matrix driving organic light emitting diode) and AMOLED (Active Matrix Driving OLED, active matrix driving organic light emitting diode) according to the driving method. Response speed, power saving, DC drive for portable devices, wid...

Examples

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The pixel circuit provided by the embodiment of the present invention, such as figure 1 shown, including:

[0029] The first transistor M1, the second transistor M2, the third transistor M3, the fourth transistor M4, the fifth transistor M5, the sixth transistor M6, the seventh transistor M7, the storage capacitor CST and the light emitting device D.

[0030] The gate of the first transistor M1 is connected to the control line Em of the light emitting ...