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

Abstract

Embodiments of the present invention provide a ramp signal generating circuit and a signal generator, an array substrate and a display device, and relate to the field of electronic technology. The ramp signal generating circuit includes: a first shift register, a second shift register with a bidirectional scanning function, The voltage drop unit and the acquisition unit; the voltage drop unit is connected to the power input terminal and the ground terminal respectively; the first shift register is connected to the voltage drop unit and is used to control the voltage drop unit to perform step-by-step continuous voltage measurement on the voltage input to the power input terminal. reduce; the acquisition unit has an output end, and the acquisition unit is connected to the voltage drop unit; the second shift register is connected to the acquisition unit, and is used to control the acquisition unit to collect and output the continuously changing voltage output by the voltage drop unit through bidirectional scanning. Such a slope signal generating circuit can reduce the area of ​​the slope signal generating circuit and improve the linearity of the slope 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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