A device, system and method for measuring ink droplet volume
A technology of ink drop and volume, applied in printing and other directions, can solve the problems of low calculation accuracy and difficulty, and achieve the effect of accurate and precise calculation
Active Publication Date: 2020-10-09
HEFEI BOE ZHUOYIN TECH CO LTD +1
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Problems solved by technology
But for such a small ink drop, it is very difficult to accurately measure the volume of the ink drop. In the prior art, the ink drop can be directly photographed by a CCD (charge-coupled device image sensor), and then the volume of the ink drop is calculated by the photo. However, the calculation accuracy of this method is low, so how to improve the accuracy of calculating the volume of ink droplets is a technical problem that those skilled in the art need to solve urgently
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[0043] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, a kind of device, system and method for measuring the volume of ink droplets proposed according to the present invention will be specifically implemented Mode, structure, feature and effect thereof are as follows in detail.
[0044] On the one hand, if Figure 1 to Figure 6 As shown, the embodiment of the present invention also provides a device for measuring the volume of an ink drop, which includes: a charging chamber 2, the charging chamber 2 is used to be arranged opposite to the nozzle 52 so that the ink droplets ejected from the nozzle 52 enter the charging chamber 2 , and is used to make the ink drop with a preset charge; the electric field chamber 3, the electric field chamber 3 is connected with the charging chamber 2, and a deflection electr...
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The invention discloses a device, a system and a method for measuring the volume of an ink droplet, and relates to the technical field of display to achieve the purpose of improving the precision of calculating the volume of the ink droplet. According to the main technical scheme, the device comprises a charging cavity which is used for being arranged opposite to a nozzle so that ink droplets jetted by the nozzle can enter the charging cavity and can carry preset charges; an electric field cavity which is communicated with the charging cavity, wherein a deflection electric field is formed in the electric field cavity and used for deflecting the ink drops; an acquisition component which is arranged in the electric field cavity and used for acquiring a first distance of the ink droplet moving along a line perpendicular to the electric field in the deflection electric field and a second distance of the ink droplet moving along the electric field in the electric field; and a processing circuit which is connected with the acquisition component, and used for calculating the volume of the ink droplet according to the first distance and the second distance of the ink droplet, the charge quantity of the preset charge and the electric field intensity of the deflection electric field. The device is mainly used for measuring the ink droplet volume.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a device, system and method for measuring ink drop volume. Background technique [0002] Organic electroluminescence (Organic light-emitting diodes, OLED) display panel is a display device that is packaged and molded using organic materials, which has the advantages of low operating voltage, fast response speed, high luminous efficiency, wide viewing angle and wide operating temperature. It is beneficial to the thinning, low power consumption and curved surface design of the display device. Compared with LCD, organic electroluminescent device (OLED) has the advantages of self-luminescence, fast response, wide viewing angle, high brightness, bright color, light and thin, etc., and is considered to be the next generation display technology. [0003] OLED film-forming methods mainly include evaporation process and solution process. The evaporation process is relatively mature in ...
Claims
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IPC IPC(8): B41J2/045B41J2/01
CPCB41J2/01B41J2/0456
Inventor 王辉锋甘静
Owner HEFEI BOE ZHUOYIN TECH CO LTD