INKJET PRINTING

The Inkjet technology is in the spotlight once again due to the display era. Since Inkjet technology advanced technologically, it allows to indicate high resolution figures that affects th electronic industries such as semiconductors and display. In manufacturing display, the Inkjet technology is vigorously researching on reducing the cost of work process and is verifying its technological suitability. OLEDNET’S ‘Inkjet Printing’ report includes the most current display Inkjet technologies’ latest status and the industry trend.

Currently, the display enterprises LCD, PDP, and OLED are facing the pressure of price deflation due to heavy competition in display markets. Therefore, low prime cost method development is seriously requested in many enterprises. The “Inkjet Printing Technique” research is being raised to break through the problem. Inkjet printing has an advantage in large area display working process field and it is vigorously developing among many enterprises. In OLED field, processing the work applying the organic compound, manufacturing the color filter in LCD, and newly working on emitter manufacture in FED are now being examined for the apply.

If Inkjet printing work is applied on display flat board, the amount of work process required is reduced by realizing the pattering that leads to unnecessary use of mask. Also, it facilitates applying large substrate by using the moving stage or head. Considering the case of photo and plating workings, it leads to 10% less in material usability which it makes possible to acquire higher material usability. Also, the facility of in-line work process realization allows the improvement of mass production and the simplification of work process and realization of compact equipment brings the benefit of reducing the prime costs.

This report includes all aspects of Inkjet techniques from the basics to most recent status. It will be a useful report on fields where Inkjet associated information is needed.

1. WHY INKJET PRINTING? ??????????????????????????????????????????????????????????4
2. INKJET TECHNIQUE ?????????????????????????????????????????????????????????????????5
2.1 INKJET HEAD TECHNIQUE VARIETY ?????????????????????????????????????6
2.2 INKJET’S INK TECHNIQUE CLASSFICATION ???????????????????????????9
2.3 LIMITS OF INKJET TECHNIQUE? ??????????????????????????????????????????12
3. INKJET EQUIPMENT AND ENTERPRICES ???????????????????????????????????13
3.1 MAIN INKJET HEAD ENTERPRICES ??????????????????????????????????????13
3.1.1 Dimatix????????????????????????????????????????????????????????????????????????????13
3.1.2 Konica?Minolta ???????????????????????????????????????????????????????????????15
3.1.3 Photondays ????????????????????????????????????????????????????????????????????16
3.1.4 Samsung General Technology Institute ?????????????????????????????????17
3.1.5 Toshiba Tec. ???????????????????????????????????????????????????????????????????18
3.1.6 Xaar ??????????????????????????????????????????????????????????????????????????????20
3.2 MAIN INKJET EQUIPMENT ENTERPRISES ?????????????????????????????22
3.2.1 Litrex ?????????????????????????????????????????????????????????????????????????????22
3.2.2 OTB ??????????????????????????????????????????????????????????????????????????????24
3.2.3 Xennia ???????????????????????????????????????????????????????????????????????????26
4. INKJET PRINTING WORK TECHNIQUE AND STATUS ?????????????????27
4.1 ESSENTIAL INKJET WORKING TECHNIQUE ???????????????????????????28
4.2 Volume control technique ??????????????????????????????????????????????????????28
4.2.1 drop size control ??????????????????????????????????????????????????????????????29
4.2.2 drop volume control ?????????????????????????????????????????????????????????30
4.3 placement control technique ??????????????????????????????????????????????????31
4.4 Morphological Control technique ???????????????????????????????????????????32
5. WORK PROCESS OF FLAT BOARD DISPLAY
AND APPLYING INKJET PRINTING TECHNOLOGY ????????????????????????33
5.1 OLED AND INKJET PRINTING METHOD ???????????????????????????????35
5.1.1 MICROMOLECULE OLED STRUCTURE
USING INKJET PRINTING ??????????????????????????????????????????????????????????36
5.1.2 OLED’S INKJET TECHNIQUE DEVELOPMENT STATUS????????37
a. CDT (Cambridge Display Technology)???????????????????????????????????37
b. Osram ?????????????????????????????????????????????????????????????????????????????38
c. Philips ?????????????????????????????????????????????????????????????????????????????39
d. Samsung Electronics ??????????????????????????????????????????????????????????40
e. Seiko-Epson ?????????????????????????????????????????????????????????????????????41
5.1.3 OLED’S INKJET PRINTING MATERIALS
AND ENTERPRICE STATUS ???????????????????????????????????????????????????????44
a. Hole Injection Material ???????????????????????????????????????????????????????44
b. Emitting Material ???????????????????????????????????????????????????????????????46
c. MAIN INKJET MATERIAL ENTERPICES STATUS ?????????????????47
5.2 LCD INKJET PRINTING TECHNIQUE??????????????????????????????????????48
5.3 PDP AND OTHER DISPLAY INKJET PRINTING
TECHNOLOGY ??????????????????????????????????????????????????????????????????????????49
5.4 RFID INKJET PRINTING TECHNIQUE?????????????????????????????????????50
5.5 PCB MANUFACTURE TECHNOLOGY
USING INKJET PRINTING ???????????????????????????????????????????????????????????51
5.6 PRINTABLE TFT MANUFACTURE TECHNIQUE ?????????????????????52
6. ENTERPICE LIST ????????????????????????????????????????????????????????????????????54

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