Pulse signal combining circuit, display panel and display device
A pulse signal and display panel technology, applied to static indicators, instruments, etc., can solve the problems of complex OLED pixel structure, reduced effective light-emitting area of OLED, and difficult realization of single pulse of multi-pulse gate drive signal, etc.
Active Publication Date: 2016-08-24
BOE TECH GRP CO LTD
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Problems solved by technology
However, in the prior art, using a unit circuit to generate multi-pulse gate drive signals is currently difficult to achieve based on the principle of single pulse
However, if a large-sized OLED display panel can only use a gate drive circuit that generates a single-pulse gate drive signal, more TFTs (thin film transistors, thin film transistors) need to be added for pixel drive, resulting in a complex OLED pixel structure and effective OLED. Reduced light emitting area
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[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0037] The transistors used in all embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the gate, one of the poles is called the source and the other is called the drain. In specific implementation, the transistor may be an n-type transistor or a p-type...
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The invention provides a pulse signal combining circuit, a display panel and a display device. The pulse signal combination circuit is used to combine N input pulse signals that are valid in each display cycle sequentially, and N is an integer greater than 1. The pulse signal combination circuit includes N output control units and pulse signal output terminals. The nth output control unit, the first control terminal is connected to the nth input pulse signal, the second control terminal is connected to the n+1th input pulse signal, and the output terminal is connected to the output terminal of the pulse signal, which is used for each display period. During the time period after the n input pulse signal is valid for the first time and before the n+1th input pulse signal is valid for the first time, control to output the nth input pulse signal to the pulse signal output terminal; n is a positive integer smaller than N. The present invention can utilize the existing single-pulse signal generating circuit to realize multi-pulse output directly by adding an OR unit, and realize lossless combination of multiple single-pulse signals.
Description
Technical field [0001] The present invention relates to the field of display technology, in particular to a pulse signal combining circuit, a display panel and a display device. Background technique [0002] In an OLED (Organic Light-Emitting Diode) display panel, due to the need of pixel compensation, a multi-pulse gate drive signal formed by combining multiple time-sharing effective single-pulse drive signals with different pulse widths is required. However, in the prior art, using one unit circuit to generate a multi-pulse gate drive signal is currently difficult to achieve based on the principle of a single pulse. If a large-size OLED display panel can only use a gate drive circuit that generates a single pulse gate drive signal, the pixel drive needs to add more TFTs (thin film transistors), which results in a complex pixel structure for the OLED, and OLED is effective. The light-emitting area is reduced. Summary of the invention [0003] The main purpose of the present inv...
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IPC IPC(8): G09G3/3208
CPCG09G3/3266G09G3/3225G09G2230/00G09G2300/0809G09G2310/0213G09G2310/0218
Inventor 李全虎宋琛
Owner BOE TECH GRP CO LTD