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Data driving circuit, driving method and display device

A technology of data-driven circuits and sub-circuits, applied in static indicators, instruments, etc., can solve the problems of doubling the area and increasing the cost, and achieve the effects of reducing the area, ensuring the accuracy, and reducing the cost

Active Publication Date: 2022-04-15
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The DAC (Digital to Analog Converter, digital-to-analog converter) has an exponential relationship between the area and the number of bits, so increasing the number of bits of the DAC means doubling the area and increasing the cost

Method used

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  • Data driving circuit, driving method and display device
  • Data driving circuit, driving method and display device
  • Data driving circuit, driving method and display device

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. Note that an embodiment may be embodied in many different forms. Those skilled in the art can easily understand the fact that the means and contents can be changed into various forms without departing from the gist and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited only to the contents described in the following embodiments. In the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined arbitrarily with each other.

[0026] In the drawings, the size of each component, the thickness of a layer, or a region is sometimes exaggerated for the sake of clarity. Therefore, one aspect of the present disclosure is not necessarily limited to...

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Abstract

This paper discloses a data driving circuit, a driving method and a display device. The data drive circuit includes: a voltage regulation sub-circuit and a DAC sub-circuit; the voltage regulation sub-circuit is respectively connected to the first control signal terminal, the high voltage output terminal and the low voltage output terminal; configured to respond to the first control signal terminal provided The first control signal outputs a first voltage at the high voltage output end, and outputs a second voltage at the low voltage output end; wherein, the voltage difference between the first voltage and the second voltage is a fixed value, and the first voltage and the second voltage The voltage has the same voltage variation under the control of the first control signal; the DAC sub-circuit is respectively connected to the high voltage output terminal, the low voltage output terminal, the second control signal terminal and the voltage output terminal, and is configured to control the second control signal The digital signal represented by the signal is converted into a corresponding voltage signal and output to the voltage output terminal. The data driving circuit provided in this paper can ensure the accuracy of the digital-to-analog conversion circuit and reduce the circuit area.

Description

technical field [0001] This article relates to but not limited to the field of display technology, and in particular relates to a data driving circuit, a driving method and a display device. Background technique [0002] In recent years, AMOLED (Active-matrix organic light-emitting diode, active-matrix organic light-emitting diode) is more and more used in TVs, flat panels and other devices. Compared with other display technologies, AMOLED has the advantages of ultra-thin, wide viewing angle, low power consumption, fast response and vivid colors. [0003] With the development of high-definition television technology, the requirements for display performance are getting higher and higher. Due to the deviation of TFT (Thin Film Transistor, thin film transistor) process, parameters such as threshold voltage and electron mobility of each driving transistor may not be completely consistent, resulting in non-uniform display. Therefore, in AMOLED-based pixel design, compensation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225G09G3/3275
CPCG09G3/3225G09G3/3275
Inventor 王糖祥杨飞
Owner BOE TECH GRP CO LTD