Pixel compensation circuit, compensation method, and display device
A compensation circuit and compensation method technology, applied in static indicators, instruments, etc., can solve problems such as non-uniformity of thin film transistors, complex structure of AMOLED pixel compensation circuit, etc., and achieve the effect of improving influence and reducing load
Active Publication Date: 2020-11-27
BOE TECH GRP CO LTD +1
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Problems solved by technology
So far, the structure of the AMOLED pixel compensation circuit is relatively complicated, and due to the limitation of the process level, it is easy to cause the non-uniformity of the parameters such as the threshold voltage Vth and the mobility K of the thin film transistor
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[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0038] Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities ...
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The invention relates to a pixel compensation circuit, a method and a display device, and relates to the field of display technology. The pixel compensation circuit includes: a driving transistor and an OLED light-emitting element; the first switching element transmits an initialization signal to the control terminal of the driving transistor in response to a reset signal; the second switching element transmits a data signal to the first terminal of the driving transistor in response to a scanning signal; The third switching element transmits the data signal to the first terminal of the coupling capacitor in response to the scanning signal, and the second terminal of the coupling capacitor is connected to the first power signal terminal; the fourth switching element is connected to the control terminal and the second terminal of the driving transistor in response to the scanning signal; The fifth switch element transmits the first power supply signal to the first terminal of the drive transistor in response to the control signal; the sixth switch element transmits the output current of the drive transistor to the OLED light-emitting element in response to the control signal; the storage capacitor is connected between the first power supply signal terminal and the first terminal of the drive transistor. between the control terminals of the drive transistor. The present disclosure can improve the uniformity of OLED light emitting brightness.
Description
technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a pixel compensation circuit, a compensation method, and a display device. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display, as a current-mode light-emitting device, has the advantages of self-luminescence, fast response, wide viewing angle, and can be fabricated on a flexible substrate, and is widely used in the field of high-performance display. According to the driving method, 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). Among them, AMOLED displays have the advantages of low manufacturing cost, high response speed, power saving, DC drive for portable devices, and wide operating temperature range, and are expected to become the next generation of fl...
Claims
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IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G3/3233G09G2320/0223G09G2300/0819G09G2300/0861G09G2300/0852G09G2320/045G09G3/3225G09G2320/0204
Inventor 韩龙
Owner BOE TECH GRP CO LTD