Slope signal generating circuit and signal generator, array substrate and display device

Abstract

A ramp signal generation circuit and a signal generator, an array substrate and a display device. The ramp signal generation circuit comprises: a voltage reducing unit (13) which is connected to a power source input end (Vref) and a grounding end, respectively; a first shift register (11) which is connected to the voltage reducing unit (13) and used for controlling the voltage reducing unit (13) to stepwise and continuously reduce voltages input by the power source input end (Vref); a collection unit (14) which is provided with an output end (Vo) and is connected to the voltage reducing unit (13); and a second shift register (12) which is connected to the collection unit (14) and used for controlling the collection unit (14) to collect and output the continuously changed voltages output by the voltage reducing unit (13). Such a ramp signal generation circuit can reduce the area of a ramp signal generation circuit, thereby improving the degree of linearity of a ramp signal.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a ramp signal generating circuit and signal generator, an array substrate and a display device. Background technique [0002] With the continuous development of electronic technology, people not only have strict requirements on the appearance and quality of electronic products, but also pay more attention to the price and practicality of products. [0003] In order to meet the needs of the public, SOG (System on Glass) technology has been widely used in existing electronic products. SOG refers to the integration of drivers and system circuits on the substrate. The emergence of this technology provides great convenience for product production and design. Development Personnel only need to simulate the TFT-based system circuit, and it can be implemented through a certain process, which greatly reduces the production cost of electronic products. In addition, the highly integrate...

AI Technical Summary

Problems solved by technology

[0005] In existing display panels, there are usually various modules on the array substrate that need to be driven by ramp signals, including digital-to-analog converters. It is still difficult to effectively integrate ramp signal generators with SOG technology at this stage. The additional slope signal generator will greatly increase the area of ​​the driving circuit, which limits the further miniaturization of the display device.

On the other hand, it is difficult for existing ramp signal generators to effectively generate a ramp signal output with good linearity, which will greatly limit the quality of display device products

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