WO2019169648A1 - 喷墨打印机及其打印方法 - Google Patents

喷墨打印机及其打印方法 Download PDF

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Publication number
WO2019169648A1
WO2019169648A1 PCT/CN2018/078772 CN2018078772W WO2019169648A1 WO 2019169648 A1 WO2019169648 A1 WO 2019169648A1 CN 2018078772 W CN2018078772 W CN 2018078772W WO 2019169648 A1 WO2019169648 A1 WO 2019169648A1
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Prior art keywords
printing
compensation
organic electroluminescent
volume
sub
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PCT/CN2018/078772
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English (en)
French (fr)
Inventor
郝鹏
吴元均
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深圳市华星光电半导体显示技术有限公司
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Priority to US15/775,064 priority Critical patent/US10406807B1/en
Publication of WO2019169648A1 publication Critical patent/WO2019169648A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
    • H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
    • H10K71/135—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an inkjet printer and a printing method thereof.
  • OLED Organic Light-Emitting Diode
  • the film formation of an organic electroluminescent device generally includes an evaporation process and a solution process.
  • the evaporation process has been widely used in the manufacture of small-sized display panels.
  • Solution processes include ink jet printing, nozzle coating, spin coating, screen printing, etc., where ink jet printing is considered an important method for manufacturing large size display panels.
  • the main steps in inkjet printing to prepare OLEDs include:
  • each sub-pixel OLED layer In order to ensure the uniformity of the entire light-emitting area of the screen, the thickness of each sub-pixel OLED layer needs to be the same, that is, it is required to ensure that the volume of the organic electroluminescent solution injected in each sub-pixel is the same during the printing process, and can be formed after the OLED film is formed. Compensate for the difference in thickness of the OLED film.
  • nozzles of 8 picoliters to 12 picoliters are used.
  • the drop precision of each drop of the print head is large, and the volume of droplets ejected between different nozzles of the same print head cannot be guaranteed. It is completely consistent, and the droplet volume deviation of the usual different nozzles is within ⁇ 10%. Therefore, improving the deviation of the droplet volume between the sub-pixels becomes the most direct method for improving the brightness unevenness of the screen.
  • an ink jet printer for preparing an organic electroluminescence device, the inkjet printer comprising a print control device, a main printing device, a volume detecting device, and a compensation printing device;
  • the printing control device is configured to control a primary printing device to perform initial printing of the organic electroluminescent solution, and control the compensation printing device to perform compensation printing of the organic electroluminescent solution;
  • the main printing device includes a main print head for performing initial printing of the organic electroluminescent solution
  • the volume detecting device is configured to detect a volume of the organic electroluminescent solution in the sub-pixel after the initial printing of the organic electroluminescent solution, and generate volume data to be transmitted to the printing control device;
  • the compensation printing device includes a compensation print head for compensating printing of the organic electroluminescent solution
  • the print size of the main print head is 8 picoliters to 12 picoliters, and the print size of the compensating printhead is less than or equal to 1 picoliter.
  • the print control apparatus includes a first driving module, a data processing module, and a second driving module;
  • the first driving module is configured to perform initial printing of the organic electroluminescent solution according to a printing requirement of the organic electroluminescent solution
  • the data processing module is configured to generate a sub-pixel compensation table by using the sub-pixel position and the compensation volume that need to be compensated after receiving the volume data;
  • the second driving module is configured to perform compensation printing of the organic electroluminescent solution according to the sub-pixel compensation printing table.
  • the compensation printing prints the sub-pixels of which the organic electroluminescent solution is insufficient in volume.
  • the volume detecting means is disposed rearward of the substrate moving direction when the primary print head performs the initial printing.
  • the volume detecting means immediately performs the detection of the volume of the organic electroluminescent solution in the sub-pixel while the main print head is printed.
  • the print control device drives the main printing device to perform the first printing by a spindle.
  • a printing method of an organic electroluminescent device comprising:
  • Step S10 providing an inkjet printer, the inkjet printer comprising a print control device, a main printing device, a volume detecting device, and a compensation printing device;
  • Step S20 the main printing device performs initial printing on the sub-pixel above the substrate, and the volume detecting device detects the volume of the first-time printed organic electroluminescent solution performed in the sub-pixel, and generates Volume data is transmitted to the print control device; wherein the primary print device includes a primary printhead;
  • Step S30 the compensation printing device performs compensation printing on the sub-pixel according to the control of the printing control device to eliminate the volume deviation of the organic electroluminescent solution caused by the initial printing.
  • the volume detecting means is disposed rearward of the substrate moving direction when the primary print head performs the initial printing.
  • the step S30 specifically includes:
  • Step S301 After receiving the volume data, the print control device generates a sub-pixel compensation table by using the sub-pixel position and the compensation volume that need to be compensated;
  • Step S302 After receiving the sub-pixel compensation table, the compensation printing device performs compensation printing on the sub-pixel according to the sub-pixel compensation table.
  • an ink jet printer for preparing an organic electroluminescence device, the inkjet printer comprising a print control device, a main printing device, a volume detecting device, and a compensation printing device;
  • the printing control device is configured to control a primary printing device to perform initial printing of the organic electroluminescent solution, and control the compensation printing device to perform compensation printing of the organic electroluminescent solution;
  • the main printing device includes a main print head for performing initial printing of the organic electroluminescent solution
  • the volume detecting device is configured to detect a volume of the organic electroluminescent solution in the sub-pixel after the initial printing of the organic electroluminescent solution, and generate volume data to be transmitted to the printing control device;
  • the compensation printing device includes a compensation printhead for compensating printing of the organic electroluminescent solution.
  • the print control apparatus includes a first driving module, a data processing module, and a second driving module;
  • the first driving module is configured to perform initial printing of the organic electroluminescent solution according to a printing requirement of the organic electroluminescent solution
  • the data processing module is configured to generate a sub-pixel compensation table by using the sub-pixel position and the compensation volume that need to be compensated after receiving the volume data;
  • the second driving module is configured to perform compensation printing of the organic electroluminescent solution according to the sub-pixel compensation printing table.
  • the compensation printing prints the sub-pixels of which the organic electroluminescent solution is insufficient in volume.
  • the volume detecting means is disposed rearward of the substrate moving direction when the primary print head performs the initial printing.
  • the volume detecting means immediately performs the detection of the volume of the organic electroluminescent solution in the sub-pixel while the main print head is printed.
  • the print control device drives the main printing device to perform the first printing by a spindle.
  • An advantage of the present invention is to provide an ink jet printer and a printing method thereof, which are provided for detecting a printing solution immediately after initial printing by setting a volume detecting device and a compensating printing device in an ink jet printer.
  • the printing solution is compensated for printing, thereby ensuring the uniformity of the organic electroluminescent device film layer to improve the display efficiency of the screen.
  • FIG. 1 is a schematic structural view of an inkjet printer according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a print control apparatus according to an embodiment of the present invention.
  • FIG. 3 is a schematic flow chart of a method for printing an organic electroluminescent device according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a specific process of step S30 in the embodiment of FIG. 3 according to the present invention.
  • the printing method of the inkjet printer and the organic electroluminescent device in the printing process of the organic electroluminescent device, the printing volume deviation of the organic electroluminescent solution between different sub-pixels is large, thereby causing uneven brightness of the screen.
  • the problem is to propose an ink jet printer and a printing method thereof, and this embodiment can improve the defect.
  • FIG. 1 is a schematic structural view of an inkjet printer according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a printing control device according to an embodiment of the present invention
  • the present invention provides an inkjet printer 1 for preparing an organic electroluminescent device, the inkjet printer comprising a print control device 11, a main printing device 12, a volume detecting device 14, and a compensation printing device 13;
  • the printing control device 11 is configured to control the primary printing device 12 to perform initial printing of the organic electroluminescent solution, and control the compensation printing device 13 to perform compensation printing of the organic electroluminescent solution;
  • the print control device 11 includes a first driving module 111, a data processing module 112, and a second driving module 113;
  • the first driving module 111 is configured to perform initial printing of the organic electroluminescent solution according to a printing requirement of the organic electroluminescent solution;
  • the data processing module 112 is configured to generate a sub-pixel compensation table by using the sub-pixel position and the compensation volume that need to be compensated after receiving the volume data;
  • the second driving module 113 is configured to perform compensation printing of the organic electroluminescent solution according to the sub-pixel compensation printing table.
  • the main printing device 12 includes a main print head for performing initial printing of the organic electroluminescent solution
  • the volume detecting device 14 is configured to detect a volume of the organic electroluminescent solution in the sub-pixel after the initial printing of the organic electroluminescent solution, and generate volume data to be transmitted to the printing control device 11.
  • the invention compensates for the shortage of the first printing by compensating the printing, and can effectively compensate the sub-pixels which are insufficiently printed in the solution volume in the initial printing, thereby improving the uniformity of the organic electroluminescent device.
  • the organic electroluminescent solution is printed in the sub-pixel, the sub-pixel is located on the upper surface of the substrate 2, and the printing direction of the inkjet printer on the substrate 2 is as shown in FIG.
  • the compensation printing device 13 includes a compensation printhead for compensating printing of the organic electroluminescent solution.
  • the compensation printing prints the sub-pixels that are insufficient in volume of the organic electroluminescent solution.
  • the volume detecting device 14 is disposed at the rear of the main printing head when the initial printing is performed with respect to the moving direction of the substrate, so that the volume detecting device can be printed after the main print head is printed. The print effect is immediately detected, and the relevant data is quickly transferred to the print control device 11.
  • the printing specification of the main print head is 8 picoliters to 12 picoliters, and the print specification of the compensation printhead is less than or equal to 1 picoliter, and the specification of the compensation printhead is set to be much smaller than the specification of the main printhead, It is effective enough to improve the accuracy of the compensation printing, thereby improving the efficiency of compensating printing.
  • the print control device 11 drives the main printing device 12 to perform the initial printing through a spindle. It can be obtained that the print control device 11 also drives the compensation printing device 13 to perform the compensation printing through a spindle.
  • the spindle rotates and shifts the position to perform the conversion of the first printing and the compensation printing, thereby improving the conversion efficiency of the two printing modes.
  • a printing method of an organic electroluminescent device comprising:
  • Step S10 providing an inkjet printer, the inkjet printer comprising a print control device, a main printing device, a volume detecting device, and a compensation printing device;
  • Step S20 the main printing device performs initial printing on the sub-pixel above the substrate, and the volume detecting device detects the volume of the first-time printed organic electroluminescent solution performed in the sub-pixel, and generates Volume data is transmitted to the print control device; wherein the primary print device includes a primary printhead;
  • Step S30 the compensation printing device performs compensation printing on the sub-pixel according to the control of the printing control device to eliminate the volume deviation of the organic electroluminescent solution caused by the initial printing.
  • volume detecting device is disposed rearward of the substrate moving direction when the primary print head performs the initial printing.
  • the step S30 specifically includes:
  • Step S301 After receiving the volume data, the print control device generates a sub-pixel compensation table by using the sub-pixel position and the compensation volume that need to be compensated;
  • Step S302 After receiving the sub-pixel compensation table, the compensation printing device performs compensation printing on the sub-pixel according to the sub-pixel compensation table.
  • the working principle of the printing method of the organic electroluminescent device in this embodiment is consistent with the principle of the inkjet printer. For details, refer to the working principle of the inkjet printer, and details are not described herein.
  • the present invention provides an ink jet printer and a printing method thereof, by setting a volume detecting device and a compensating printing device in an ink jet printer, detecting a printing solution immediately after initial printing, and compensating for a printing solution to be compensated Printing, thereby ensuring the uniformity of the organic electroluminescent device film layer, to improve the display efficiency of the screen.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种喷墨打印机及其打印方法，该喷墨打印机包括打印控制装置（11）、主打印装置（12）、体积检测装置（14）以及补偿打印装置（13）；所述体积检测装置（14）能够在主打印装置（12）进行初次打印后，立刻检测出所需要补偿的打印溶液体积和打印位置，进而通过补偿打印装置（13）对需补偿的打印溶液进行补偿打印。该喷墨打印机及其打印方法能够确保有机电致发光器件膜层的均一性，以提高屏幕的显示效率。

Description

喷墨打印机及其打印方法 技术领域
本发明涉及显示技术领域，具体涉及一种喷墨打印机及其打印方法。
 背景技术
有机电致发光器件（Organic Light-Emitting Diode, OLED）以其自发光、全固态、高对比度等优点，成为近年来最具潜力的新型显示器件。
有机电致发光器件的成膜一般包括蒸镀制程和溶液制程。蒸镀制程已经广泛应用于在小尺寸显示面板的制造中。溶液制程包括喷墨打印、喷嘴涂覆、旋涂、丝网印刷等，其中喷墨打印被认为是用于制造大尺寸显示面板的重要方法。
喷墨打印制备OLED的主要步骤包括：
（1）将精准体积的液滴滴落在制定位置以及基板的像素开口内；
（2）通过真空减压干燥将液滴干燥成薄膜；
（3）加热退火处理，以提升所得OLED的薄膜品质。
为了保证屏幕全部发光区的均匀性，需要每个子像素OLED层的厚度相同，即需要在打印过程中保证每个子像素中注入的有机电致发光溶液的体积相同，可能够在形成OLED膜后，补偿成OLED膜的厚度差异。
在目前的主流喷墨打印喷头中，采用8皮升至12皮升规格的喷嘴，其中，打印头的每滴滴落精度偏差较大，无法保证同一打印头不同喷嘴之间吐出的液滴体积完全一致，通常的不同喷嘴吐出的液滴体积偏差范围在±10%，因此，改善子像素之间液滴体积的偏差，成为改善屏幕亮度不均最直接的方法。
为了保证打印在子画素内液滴体积的一致性和精确性，目
前亟需一种改善子像素之间液滴体积的偏差的方法。
 技术问题
在有机电致发光器件的打印过程中，不同子像素之间有机电致发光溶液打印体积偏差较大，进而导致屏幕亮度不均的问题。
 技术解决方案
为实现上述目的，本发明提供的技术方案如下：
根据本发明的一个方面，本发明提供了一种喷墨打印机，用于制备有机电致发光器件，所述喷墨打印机包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
所述打印控制装置用于控制主打印装置进行所述有机电致发光溶液的初次打印，并控制所述补偿打印装置进行所述有机电致发光溶液的补偿打印；
所述主打印装置包括主打印头，所述主打印头用于进行所述有机电致发光溶液的初次打印；
所述体积检测装置用于在所述有机电致发光溶液的初次打印后，检测子像素中所述有机电致发光溶液的体积，并生成体积数据传输给所述打印控制装置；
所述补偿打印装置包括补偿打印头，所述补偿打印头用于对所述有机电致发光溶液进行补偿打印；
其中，所述主打印头的打印规格为8皮升至12皮升，所述补偿打印头的打印规格小于或等于1皮升。
根据本发明一优选实施例，所述打印控制装置包括第一驱动模块、数据处理模块、第二驱动模块；
所述第一驱动模块用于根据所述有机电致发光溶液的打印需求进行所述有机电致发光溶液的初次打印；
所述数据处理模块用于在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
所述第二驱动模块用于根据所述子像素补偿打印表格进行所述有机电致发光溶液的补偿打印。
根据本发明一优选实施例，在所述初次打印后，所述补偿打印对所述有机电致发光溶液体积不足的所述子像素进行打印。
根据本发明一优选实施例，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
根据本发明一优选实施例，在所述主打印头打印完毕的同时所述体积检测装置立即进行所述子像素中所述有机电致发光溶液的体积的检测。
根据本发明一优选实施例，所述打印控制装置通过主轴带动所述主打印装置进行所述初次打印。
根据本发明的另一个方面，提供了一种有机电致发光器件的打印方法，包括：
步骤S10、提供一喷墨打印机，所述喷墨打印机包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
步骤S20、所述主打印装置对基板上方的子像素进行初次打印，所述体积检测装置对所述子像素中进行的所述初次打印的所述有机电致发光溶液的体积进行检测，并生成体积数据传输给所述打印控制装置；其中，所述主打印装置包括主打印头；
步骤S30、所述补偿打印装置根据所述打印控制装置的控制对所述子像素进行补偿打印，以消除所述初次打印导致的所述有机电致发光溶液的体积偏差。
根据本发明一优选实施例，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
根据本发明一优选实施例，所述步骤S30具体包括：
步骤S301、所述打印控制装置在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
步骤S302、所述补偿打印装置在接收到所述子像素补偿表格后，根据所述子像素补偿表格对所述子像素进行补偿打印。
根据本发明的又一个方面，本发明提供了一种喷墨打印机，用于制备有机电致发光器件，所述喷墨打印机包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
所述打印控制装置用于控制主打印装置进行所述有机电致发光溶液的初次打印，并控制所述补偿打印装置进行所述有机电致发光溶液的补偿打印；
所述主打印装置包括主打印头，所述主打印头用于进行所述有机电致发光溶液的初次打印；
所述体积检测装置用于在所述有机电致发光溶液的初次打印后，检测子像素中所述有机电致发光溶液的体积，并生成体积数据传输给所述打印控制装置；
所述补偿打印装置包括补偿打印头，所述补偿打印头用于对所述有机电致发光溶液进行补偿打印。
根据本发明一优选实施例，所述打印控制装置包括第一驱动模块、数据处理模块、第二驱动模块；
所述第一驱动模块用于根据所述有机电致发光溶液的打印需求进行所述有机电致发光溶液的初次打印；
所述数据处理模块用于在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
所述第二驱动模块用于根据所述子像素补偿打印表格进行所述有机电致发光溶液的补偿打印。
根据本发明一优选实施例，在所述初次打印后，所述补偿打印对所述有机电致发光溶液体积不足的所述子像素进行打印。
根据本发明一优选实施例，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
根据本发明一优选实施例，在所述主打印头打印完毕的同时所述体积检测装置立即进行所述子像素中所述有机电致发光溶液的体积的检测。
根据本发明一优选实施例，所述打印控制装置通过主轴带动所述主打印装置进行所述初次打印。
 有益效果
本发明的优点是，提供了一种喷墨打印机及其打印方法，通过在将体积检测装置和补偿打印装置设置在喷墨打印机中，在初次打印后立即对打印溶液进行检测，对需补偿的打印溶液进行补偿打印，进而确保有机电致发光器件膜层的均一性，以提高屏幕的显示效率。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中喷墨打印机的结构示意图；
图2为本发明实施例中打印控制装置的结构示意图；
图3为本发明实施例有机电致发光器件打印方法的流程示意图；
图4为本发明图3实施例中步骤S30的具体流程示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对喷墨打印机及有机电致发光器件的打印方法中，因有机电致发光器件的打印过程中，不同子像素之间有机电致发光溶液打印体积偏差较大，进而导致屏幕亮度不均的问题，而提出了一种喷墨打印机及其打印方法，本实施例能够改善该缺陷。
下面结合附图和具体实施例对本发明做进一步的说明：
图1为本发明实施例中喷墨打印机的结构示意图；图2为本发明实施例中打印控制装置的结构示意图；
本发明提供了一种喷墨打印机1，用于制备有机电致发光器件，所述喷墨打印机包括打印控制装置11、主打印装置12、体积检测装置14以及补偿打印装置13；
所述打印控制装置11用于控制主打印装置12进行所述有机电致发光溶液的初次打印，并控制所述补偿打印装置13进行所述有机电致发光溶液的补偿打印；
如图2所示，所述打印控制装置11包括第一驱动模块111、数据处理模块112、第二驱动模块113；
所述第一驱动模块111用于根据所述有机电致发光溶液的打印需求进行所述有机电致发光溶液的初次打印；
所述数据处理模块112用于在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
所述第二驱动模块113用于根据所述子像素补偿打印表格进行所述有机电致发光溶液的补偿打印。
所述主打印装置12包括主打印头，所述主打印头用于进行所述有机电致发光溶液的初次打印；
所述体积检测装置14用于在所述有机电致发光溶液的初次打印后，检测子像素中所述有机电致发光溶液的体积，并生成体积数据传输给所述打印控制装置11。
本发明通过补偿打印来弥补初次打印的不足，能有有效的弥补初次打印中溶液体积打印不足的子像素，进而提高有机电致发光器件的均一性。
具体的，所述有机电致发光溶液被打印在所述子像素中，所述子像素位于基板2上表面，所述喷墨打印机在所述基板2上的打印方向如图1所示。
所述补偿打印装置13包括补偿打印头，所述补偿打印头用于对所述有机电致发光溶液进行补偿打印。
在本发明一实施例中，在所述初次打印后，所述补偿打印对所述有机电致发光溶液体积不足的所述子像素进行打印。
进一步的，如图1所示，所述体积检测装置14设置在所述主打印头进行所述初次打印时相对基板移动方向的后方，这样就能够在主打印头打印后，所述体积检测装置14立即检测打印效果，快速的将相关数据传输到所述打印控制装置11。
其中，所述主打印头的打印规格为8皮升至12皮升，所述补偿打印头的打印规格小于或等于1皮升，通过设置补偿打印头的规格远小于主打印头的规格，更够有效的提高补偿打印的精度，进而提升补偿打印的效率。
通常的，所述打印控制装置11通过主轴带动所述主打印装置12进行所述初次打印，可以得到的是，所述打印控制装置11也是通过主轴带动所述补偿打印装置13进行所述补偿打印，所述主轴通过伸缩换位的方式，来进行初次打印和补偿打印的转换，进而提高两种打印方式的转换效率。
如图3和图4所示，根据本发明的另一个方面，提供了一种有机电致发光器件的打印方法，包括：
步骤S10、提供一喷墨打印机，所述喷墨打印机包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
步骤S20、所述主打印装置对基板上方的子像素进行初次打印，所述体积检测装置对所述子像素中进行的所述初次打印的所述有机电致发光溶液的体积进行检测，并生成体积数据传输给所述打印控制装置；其中，所述主打印装置包括主打印头；
步骤S30、所述补偿打印装置根据所述打印控制装置的控制对所述子像素进行补偿打印，以消除所述初次打印导致的所述有机电致发光溶液的体积偏差。
进一步的，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
所述步骤S30具体包括：
步骤S301、所述打印控制装置在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
步骤S302、所述补偿打印装置在接收到所述子像素补偿表格后，根据所述子像素补偿表格对所述子像素进行补偿打印。
本实施例中有机电致发光器件的打印方法的工作原理跟所述喷墨打印机的原理一致，具体可参考所述喷墨打印机的工作原理，此处不再做赘述。
本发明提供了一种喷墨打印机及其打印方法，通过在将体积检测装置和补偿打印装置设置在喷墨打印机中，在初次打印后立即对打印溶液进行检测，对需补偿的打印溶液进行补偿打印，进而确保有机电致发光器件膜层的均一性，以提高屏幕的显示效率。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围。

Claims (15)

  1. 一种喷墨打印机，用于制备有机电致发光器件，其包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
    所述打印控制装置用于控制主打印装置进行所述有机电致发光溶液的初次打印，并控制所述补偿打印装置进行所述有机电致发光溶液的补偿打印；
    所述主打印装置包括主打印头，所述主打印头用于进行所述有机电致发光溶液的初次打印；
    所述体积检测装置用于在所述有机电致发光溶液的初次打印后，检测子像素中所述有机电致发光溶液的体积，并生成体积数据传输给所述打印控制装置；
    所述补偿打印装置包括补偿打印头，所述补偿打印头用于对所述有机电致发光溶液进行补偿打印；
    其中，所述主打印头的打印规格为8皮升至12皮升，所述补偿打印头的打印规格小于或等于1皮升。
  2. 根据权利要求1所述的喷墨打印机，其中，所述打印控制装置包括第一驱动模块、数据处理模块、第二驱动模块；
    所述第一驱动模块用于根据所述有机电致发光溶液的打印需求进行所述有机电致发光溶液的初次打印；
    所述数据处理模块用于在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
    所述第二驱动模块用于根据所述子像素补偿打印表格进行所述有机电致发光溶液的补偿打印。
  3. 根据权利要求2所述的喷墨打印机，其中，在所述初次打印后，所述补偿打印对所述有机电致发光溶液体积不足的所述子像素进行打印。
  4. 根据权利要求1所述的喷墨打印机，其中，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
  5. 根据权利要求1所述的喷墨打印机，其中，在所述主打印头打印完毕的同时所述体积检测装置立即进行所述子像素中所述有机电致发光溶液的体积的检测。
  6. 根据权利要求1所述的喷墨打印机，其中，所述打印控制装置通过主轴带动所述主打印装置进行所述初次打印。
  7. 一种有机电致发光器件的打印方法，其包括：
    步骤S10、提供一喷墨打印机，所述喷墨打印机包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
    步骤S20、所述主打印装置对基板上方的子像素进行初次打印，所述体积检测装置对所述子像素中进行的所述初次打印的所述有机电致发光溶液的体积进行检测，并生成体积数据传输给所述打印控制装置；其中，所述主打印装置包括主打印头；
    步骤S30、所述补偿打印装置根据所述打印控制装置的控制对所述子像素进行补偿打印，以消除所述初次打印导致的所述有机电致发光溶液的体积偏差。
  8. 根据权利要求7所述的打印方法，其中，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
  9. 根据权利要求7所述的打印方法，其中，所述步骤S30具体包括：
    步骤S301、所述打印控制装置在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
    步骤S302、所述补偿打印装置在接收到所述子像素补偿表格后，根据所述子像素补偿表格对所述子像素进行补偿打印。
  10. 一种喷墨打印机，用于制备有机电致发光器件，其包括打印控制装置、主打印装置、体积检测装置以及补偿打印装置；
    所述打印控制装置用于控制主打印装置进行所述有机电致发光溶液的初次打印，并控制所述补偿打印装置进行所述有机电致发光溶液的补偿打印；
    所述主打印装置包括主打印头，所述主打印头用于进行所述有机电致发光溶液的初次打印；
    所述体积检测装置用于在所述有机电致发光溶液的初次打印后，检测子像素中所述有机电致发光溶液的体积，并生成体积数据传输给所述打印控制装置；
    所述补偿打印装置包括补偿打印头，所述补偿打印头用于对所述有机电致发光溶液进行补偿打印。
  11. 根据权利要求10所述的喷墨打印机，其中，所述打印控制装置包括第一驱动模块、数据处理模块、第二驱动模块；
    所述第一驱动模块用于根据所述有机电致发光溶液的打印需求进行所述有机电致发光溶液的初次打印；
    所述数据处理模块用于在接收所述体积数据后，将需要补偿的所述子像素位置及补偿体积生成子像素补偿表格；
    所述第二驱动模块用于根据所述子像素补偿打印表格进行所述有机电致发光溶液的补偿打印。
  12. 根据权利要求10所述的喷墨打印机，其中，在所述初次打印后，所述补偿打印对所述有机电致发光溶液体积不足的所述子像素进行打印。
  13. 根据权利要求10所述的喷墨打印机，其中，所述体积检测装置设置在所述主打印头进行所述初次打印时相对基板移动方向的后方。
  14. 根据权利要求10所述的喷墨打印机，其中，在所述主打印头打印完毕的同时所述体积检测装置立即进行所述子像素中所述有机电致发光溶液的体积的检测。
  15. 根据权利要求10所述的喷墨打印机，其中，所述打印控制装置通过主轴带动所述主打印装置进行所述初次打印。
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