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Ink droplet volume calibration method, calibration system thereof, and printing device

A calibration method and calibration system technology, which is applied in volume measurement testing/calibration, volume measurement instrument/method, printing, etc., can solve the problems of error and low measurement accuracy, and achieve the goal of improving measurement accuracy and accurately measuring ink drop volume Effect

Inactive Publication Date: 2016-04-06
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a method for calibrating the volume of ink droplets and its calibration system and printing equipment, which are used to solve the problem of low measurement accuracy caused by optical measurement methods used in the prior art to measure ink droplet volume formation errors

Method used

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  • Ink droplet volume calibration method, calibration system thereof, and printing device
  • Ink droplet volume calibration method, calibration system thereof, and printing device
  • Ink droplet volume calibration method, calibration system thereof, and printing device

Examples

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Embodiment 1

[0070] image 3 It is a flow chart of a method for calibrating the volume of an ink drop provided by Embodiment 1 of the present invention. like image 3 As shown, the calibration method of the ink droplet volume includes:

[0071] Step 1001, calculate the first volume of the ink drop according to the mass and density of the ink drop.

[0072] In this embodiment, before the step of calculating the first volume of the ink drop according to the mass and density of the ink drop includes: obtaining the total mass of the multiple ink drops; obtaining the total number of the multiple ink drops; and obtaining the density of the ink drop. Optionally, the step of calculating the first volume of ink droplets according to the mass and density of ink droplets includes: calculating the total volume of multiple ink droplets according to the total mass and density of multiple ink droplets; The volume and total count calculate the first volume of the ink drop. Specifically, the total mass...

Embodiment 2

[0079] Figure 4 It is a schematic structural diagram of an ink droplet volume calibration system provided by Embodiment 2 of the present invention. like Figure 4 As shown, the ink drop volume calibration system includes a first calculation unit 101, a first calibration unit 102 and a first acquisition unit 103, and the first calculation unit 101 is used to calculate the first ink drop volume according to the mass and density of the ink drop. Volume; the first calibration unit 102 is used to calibrate the preset measurement parameters of the optical measurement method according to the first volume, and the optical measurement method calculates the volume of the ink drop by fitting and processing the ink drop image; the first acquisition unit Step 103 is used to obtain the second volume of the ink drop according to the measured parameter after calibration. The technical solution provided in this embodiment combines the weighing measurement method with the optical measurement...

Embodiment 3

[0086] This embodiment provides a printing device, including the ink droplet volume calibration system provided in Embodiment 2. For details, please refer to the description of Embodiment 2, which will not be repeated here.

[0087]In the printing device provided in this embodiment, the ink drop volume calibration system calculates the first volume of the ink drop according to the mass and density of the ink drop, and calibrates the preset measurement parameters of the optical measurement method according to the first volume. The optical measurement method calculates the volume of the ink drop by fitting and processing the image of the ink drop, and obtains the second volume of the ink drop according to the measured parameters after calibration. The technical solution provided in this embodiment combines the weighing measurement method with the optical measurement method, and calibrates the measurement parameters of the optical measurement method according to the results of the...

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Abstract

The invention discloses an ink droplet volume calibration method, a calibration system thereof, and a printing device. The ink droplet volume calibration method calculates the first volume of ink droplets according to ink droplet quality and density; according to the first volume, the preset measuring parameters of an optical measurement method are calibrated; the optical measurement method calculates the volume of ink droplets through a fitting processing ink droplet image mode; the second volume of ink droplets is obtained according to calibrated measuring parameters. In the technical scheme, a weighing measurement method and the optical measurement method are combined, and the measuring parameters of the optical measurement method are calibrated according to the result of the weighing measurement method, thereby improving ink droplet volume measurement precision. In addition, specific to different ink droplets, different optical fitting parameters are provided in the embodiment, thereby realizing accurate measurement of ink droplet volumes.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for calibrating the volume of an ink droplet, a calibrating system thereof, and a printing device. Background technique [0002] Inkjet printing technology is to print ink droplets into pixels through printing nozzles. Using inkjet printing technology to make OLED display products has the advantages of high material utilization rate and short production time. Therefore, the use of inkjet printing technology to produce OLED display products has been valued by more and more manufacturers, and has become the development focus of each manufacturer. However, inkjet printing technology requires relatively high printing position accuracy and ink drop volume accuracy. If the printing position accuracy is not enough, the ink drop cannot enter the pixel. If the ink drop volume accuracy is not enough, the display will appear uneven. Case. Therefore, being able to accurately meas...

Claims

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Application Information

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IPC IPC(8): B41J2/045B41J2/01
CPCB41J2/01B41J2/04535B41J2/0456B41J2/04586G01F22/00G01F25/0092
Inventor 赵德江王浩
Owner BOE TECH GRP CO LTD
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