OLED industry continued its technological and industralization growth in 2005. Although it showed a lower growth rate than expected in industralization field but it showed a incredible growth rate in technological field, which means the importance of OLED in the display industry is gradually increasing. To explain this situation, many display exhibitions were held all around the world in 2005. This report provides OLED industry trend by examining main exhibitions’ trend held during 2005.

In 2005, OLED associated enterprises displayed their research results in a display exhibition around many cities. The growth of OLED markets was continuous in 2005, and the markets were led by Rep. of Korea, Taiwan, and Japan enterprises.

A total of 23 OLED panel enterprises attended the exhibition in 2005 showing their 112 panels. Of these enterprises three were from Rep. of Korea, nine were from Japan, and seven were from Taiwan. According to OLEDNET’S research result, of the 112 panels, 38 panel products were from AMOLED and 74 panel products were from PMOLED. Tens of AMOLED panels were displayed as well as their year 2006 mass production panel models.

The largest international display exhibition SID’05 held place in Boston during May and 451 essays were presented. Of these essays, 25% Korean, 22% U.S., 20% Japanese, and 10% Taiwanese were presented showing that the research is developing mainly concentrated on these four countries. In the FPD TAIWAN 2005 held in Taiwan during June, including Taiwan, Rep. of Korea, and Japan and other FPD associated enterprises attended the exhibition. In Korea’s largest display academy as well as an exhibition, IMID 2005, 145 enterprises from eight countries attended the show with 15,000 spectators writing a history of being the largest exhibition throughout the generation in that time. The great last display festival FPD international 2005 was held in Pacific Yokohama, Japan. A total of 356 worldwide display associated enterprises attended the show which had to use the entire market as the festival place.

This reports describes the OLED’S main products and techniques displayed in main display exhibition shows in year 2005. It provides a sight of current OLED industry enterprises in year 2005 by clearly organizing the products from each enterprise.

1.1 AMOLED Development status ?????????????????????????????????5
1.2 PMOLED Development status ?????????????????????????????????9
1.3 Displayed OLED Panel Distribution ???????????????????????????10
2. MAIN EXHIBITIONS SCHEDULE ???????????????????????????????????12
3. OLED PANEL EXHIBITION ENTERPRISES ????????????????????????13
? LG Electronics ???????????????????????????????????????????????????????13
? Samsung Electronics ??????????????????????????????????????????????15
? Samsung SDI ?????????????????????????????????????????????????????????17
? NIPPON SEIKI (OPTREX, ADEON) ????????????????????????????21
? HITACHI DISPLAY ????????????????????????????????????????????????22
? FUJI ELECTRIC. ?????????????????????????????????????????????????????23
? ROHM ?????????????????????????????????????????????????????????????????24
? TDK ????????????????????????????????????????????????????????????????????25
? TMD ??????????????????????????????????????????????????????????????????? 26
? TOHOKU PIONEER/ ELDIS ????????????????????????????????????? 27
? TOPPAN PRINTING ???????????????????????????????????????????????29
? SONY ?????????????????????????????????????????????????????????????????? 29
? AUO ??????????????????????????????????????????????????????????????????? 30
? CMEL ??????????????????????????????????????????????????????????????????32
? CPT ???????????????????????????????????????????????????????????????????? 33
? OPTO TECH ????????????????????????????????????????????????????????? 34
? RITDISPLAY ???????????????????????????????????????????????????????? 35
? TOPPOLY ???????????????????????????????????????????????????????????? 37
? UNIVISION ?????????????????????????????????????????????????????????? 38
? CDT ?????????????????????????????????????????????????????????????????????41
? KODAK ??????????????????????????????????????????????????????????????? 42
? OSRAM OPTO SEMICONDUCTORS ?????????????????????????44
? THOMSON ???????????????????????????????????????????????????????????45
4. PANEL ENTERPRISE LIST ???????????????????????????????????????????????46


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
4.1 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
5.1 OLED AND INKJET PRINTING METHOD ???????????????????????????????35
USING INKJET PRINTING ??????????????????????????????????????????????????????????36
a. CDT (Cambridge Display Technology)???????????????????????????????????37
b. Osram ?????????????????????????????????????????????????????????????????????????????38
c. Philips ?????????????????????????????????????????????????????????????????????????????39
d. Samsung Electronics ??????????????????????????????????????????????????????????40
e. Seiko-Epson ?????????????????????????????????????????????????????????????????????41
AND ENTERPRICE STATUS ???????????????????????????????????????????????????????44
a. Hole Injection Material ???????????????????????????????????????????????????????44
b. Emitting Material ???????????????????????????????????????????????????????????????46
5.2 LCD INKJET PRINTING TECHNIQUE??????????????????????????????????????48
TECHNOLOGY ??????????????????????????????????????????????????????????????????????????49
5.4 RFID INKJET PRINTING TECHNIQUE?????????????????????????????????????50
USING INKJET PRINTING ???????????????????????????????????????????????????????????51
6. ENTERPICE LIST ????????????????????????????????????????????????????????????????????54


White OLED is the OLED electron that emits white light in single and/or multiple organic materials. The research of white OLED is being progressed due to its high efficiency as the source of light. Especially, white OLED has high change of being industrialized as display and lighting field, active research is being progressed by enterprises. OLEDNET’S White OLED technology/patent analysis’ report look for most current white OLED technology development status by countries and enterprises and checks future technologic trend.

White OLED in Display is used as a method to realize the color display by using the OLED. It had become known that the method of using white OLED and color filter technology has more advantage on manufacturing the AMOLED. Also, white OLED using the color conversion technique is being practiced. Currently, GE is using the Blue Polymer color conversion WOLED to change the blue into white to develop a high efficient white OLED and they presented the method of using the WOLED color conversion method to publics. In Korea, a research of applying white OLED into backlight is being progressed by KDT.

A research on white OLED as lighting usage is more being progressed. There is a high expectation among foreign countries of white OLED as a future main lighting method. Osram, Philips, GE, and other international lighting enterprises are concentrating the research on white OLED as a next generation of fluorescent lamps. White OLED, a thin, high brightness, and natural light that is very familiar to humans, provided a high chance to be used as lighting machinery in the future.

This report provides a revision and results of most recent white OLED report’s trend from each enterprise to see the future possibility.

1. WHITE OLED OUTLINE——————————————————————————-3


3.1 White OLED technique using multilayer emission: high molecule emission layer—-8
3.2 White OLED technique using multilayer emission:
Low molecule fluorescence emission layer———————————————————10
3.3 Multiple layer emission used for White OLED technology:
Low molecule fluorescence emission layer ——————————————————–11
3.4 Multiple layer emission used for White OLED technology:
Phosphorescence emission layer ——————————————————————–12
3.5 White OLED technology using color transformation—————————————13
3.6 Element laminating method used for White OLED technology ————————–16
3.7 RGBW AMOLED ———————————————————————————– 17

4. OLED and lighting industries———————————————————————–25
4.1 White OLED lighting ——————————————————————————- 27
4.2 White OLED LCD back light———————————————————————- 28
4.3 United States DOE surface light sources project ——————————————–29
4.4 OLLA (Organic LED technology for Lighting Applications) project —————— 33
4.5 Japan OLED development status for lightings———————————————–34

5. White OLED patent status (1994~2005) ———————————————————38
5.1 White OLED patent status ————————————————————————39
5.2 Applicators by countries status——————————————————————40
5.3 Patent status by classification code————————————————————-41
5.4 Main applicators status by classification code———————————————–42
5.5 White OLED associated main patents ———————————————————-43

Appendix 1. Main White OLED developing enterprises and research fields————–46


OLED industry is meeting its turning point by its commercialization and technology in 2005. The effort of associated enterprises made possible to raise the large OLED development possibility and the mass production plan, and many possible technological problems were proposed to open these markets. In ‘2005 first half year OLED patent analysis’ report, it is to understand the first half year’s open/registered Rep. of Korea, Japan, and the United States applied results by analyzing the investigation to inquire current OLED technology trend.

OLED is a new technology with short history that the first inventors are still working on its development. It is an area that technology license is very susceptible with high expectations on the appearance of new technology. OLED enterprises are exerting on OLED research development to obtain prior market share for future OLED market as well as protecting their technology applying the patent.

Lots of new patents were displayed and registered during the first half year in 2005. In 2005, total of 2,357 patents were from Rep. of Korea, Japan, and the United States which showed an increase of 300 patents from 2004. Registered patents were 608 which are 170 more than in 2004. Within these patents, 215 were from Rep. of Korea that is 2.3 times higher than patents from second half year in 2004.

Not only the amount of patents was increased, but there were also improvements in the contents. A displayed/registered PE associated patents had 48% and 47% showing their maximum share and EM and PC followed the PE. In addition, patents of white OLED of front emission and both side emission of light method were increased as organic materials and OLED structure/working method were placed as main source of development. Also, OLED applied backlight lighting patents is started being applied.

As OLED newly entered the market, a technological solution plans and technology developments lead a intense competition This report provides OLED’S technology level as to be used a director for their research developments.

I. Introduction

II. 2005 first half year open/registered patent analysis by countries
2.1 Monthly open/registered patent amount distribution
2.2 Fixed quantity comparison analysis by countries’ patent

III. 2005 first half year open patent analysis
3.1 2005 first half year all open patent analysis
3.1.1 Open patent amount status by applicators
3.1.2 Open patent amount status by applicators’ nationalities
3.1.3 Open patent amount by classification code

3.2 Korean open patent analysis by applicators
3.2.1 Monthly main applicators status
3.2.2 Main applicators status by classification code
3.2.3 Present state of patent amounts by classification code

3.3 United States open patent analysis by applicators
3.3.1 Monthly main applicators status
3.3.2 Main applicators status by classification code
3.3.3 Present state of patent amounts by classification code

3.4 Japan open patent analysis by applicators
3.4.1 Monthly main applicators status
3.4.2 Main applicators status by classification code
3.4.3 Present state of patent amounts by classification code

3.5 Applicators’ nationalities analyses by countries

IV. 2005 first half year registered patent analysis
4.1 2005 first half year all registered patent analysis
4.1.1 Registered patent amount status by applicators
4.1.2 Registered patent amount status by applicators’ nationalities
4.1.3 Registered patent amount by classification code

4.2 Korean open patent analysis by applicators
4.2.1 Monthly main applicators status
4.2.2 Main applicators status by classification code
4.2.3 Present state of patent amounts by classification code

4.3 United States open patent analysis by applicators
4.3.1 Monthly main applicators status
4.3.2 Main applicators status by classification code
4.3.3 Present state of patent amounts by classification code

4.4 Japan open patent analysis by applicators
4.4.1 Monthly main applicators status
4.4.2 Main applicators status by classification code
4.4.3 Present state of patent amounts by classification code

4.5 Applicators’ nationalities analyses by countries

V. Conclusion


As it is prooving the next generation analysis, the technological advancement of OLED is being repeatedly progressed. In 2005 first half year, foreign OLED associated enterprises presented their new technology and policy.

This report provides the analysis point of future market movement by examining newly introduced foreign OLED associated products and technology during first half year in 2005.

Display had become one of the most important elements in our lives. Display machinery placed its importance in our lives as variety of new digital machineries were created and presented each day. OLED’S wide choices are being clearly noticed with their mobile phone, mp3 player, and digital camera with the great expectation of being the future display generation with its special positive facts.

This report predicts the future industrial direction with the information of last second half years
OLED associated products and the trend of each enterprise and market

PMOLED is still considered as a leader of OLED market with its expectancy of 900 billion WON (Korean Currency) market formation, but AMOLED markets will seriously address starting from 2006. It is expected that AMOLED mobile phone will be massively produced in 2006 by LG and Philips LCD. Taiwanese enterprises are preparing the 2006 with AMOLED’S digital cameras as well as PMOLED’S mp3 player and car products. High value added AMOLED is Tohuku Pioneer, Sony, and other enterprises’ main market and it is expected that PMOLED mp3 player market will grow than PMOLED mobile phone. In addition, other enterprises such as Kodak, Osram, Opto semiconductors are earning market’s interest with their special products.

MP3 player that has moving image function is being clearly noticed in the application’s side. These MP3 player uses PMOLED and LCD applied one inch window to view moving images

Samsung electronics AMOLED 40 inch panel technology was the man issue during last first half year in SID’05 exhibition. This technology received a remark of showing AMOLED’S technology’s future growth possibility. Other than that, Samsung SDI’s high resolution AMOLED panel technology, AUO’S independent double side luminescent AMOLED panel technology, and MODISTECH’S hybrid encapsulation worked as new technologies to improve the OLED market.

1. OLED Market trend
1.1 PMOLED market
1.2 AMOLED market

2. Enterprises Trend
2.1 Korean OLED associated enterprises and products
Samsung SDI
LG Electronics
Samsung Electronics
LG Philips LCD
2.2 Taiwan OLED associated enterprises and products
2.3 Japan OLED associated enterprises and products
2.4 United States OLED associated enterprises and products
Osram opto semiconductors

3. application Trend
3.1 MP4 full color PMOLED
3.2 Optimus – customizable artistic keyboard
3,3 Northeast Pioneer _ Opera house subtitle OLED display

4. OLED Technology trend
4.1 Samsung Electronics 40” AMOLED panel technology
4.2 Samsung Electronics 14” AMPLED panel technology
4.3 Samsung SDI 302 ppi high resolution AMOLED panel technology
4.4 SEL single color 423 ppi high resolution internal circuit AMOLED panel technology
4.5 AUO independent double side emission AMOLED panel technology
4.6 DNP Photolithography 200 ppi high resolution F/C Polymer PMOLED panel technology
4.7 Thomson low voltage driving AMOLED technology
4.8 NOVALED low voltage driving PIN OLED technology
4.9 White OLED element technology
4.10 Phosphorescence Polymer OLED technology
4.11 Philips Encapsulation technology
4.12 Modistech Hybrid encapsulation
4.13 Dupont encapsulation-Cover Glass Drylox


The display in digital convergence era, new contents were presented such as DMB broadcasting creating a new product and some of other products were absorbed by other products.

This report includes the estimation of display evolution movement by looking at the display installed products’ transformation to predict future total OLED market scale. Also, it is to see the PM/AMOLED market growth possibility and to report the production trend by enterprises.

Although the digital convergence era created lots of different contents such as DMB broadcasting and new products, it is experiencing products being absorbed by other product’s market.
This report indicated adequate display size and resolution for products that display is equipped by classifying applied products that are anticipated to lead the future market.

The real number of companies entering the business are relatively small considering the large amount of companies that planned the OLED production and panel developments. The amount of other companies that can enter the market and compete with succeeded companies in the market such as Tohuku Pioneer, Pit Display, LG electronics, and Univision is unknown. Recently, Neoview Kolon is being analyzed as one possible PMOLED enterprise in 2006 due to their significant increase in production. However, as time goes by, the rest of other companies’ chance to enter the market is obscure since there is insufficient investment.

Since AMOLED had just begun, it is expected that the market leadership will quickly change. The chance of a serious participation of TFT-LCD enterprise will be when TFT-LCD and AMOLED market products is clearly divided.
It could be favorable competing in the same market with TFT-LCD, but key factors AMOLED to gain a serious competition with TFT-LCD are the realization of AMOLED’S unique double side light emission products with suitable contents, application of touch panel, and presenting unique products that could lead the digital convergence era is required to AMOLED products become as the display convergence product.

Also, this report provides a possible growth of entire OLED market structure and PM/AMOLED’S product market by country in the future.

1. Display evolution

2. Digital Convergence era?

3. Main Displays in Near Future
3.1 Mobile Display
3.2 Personal Display
3.3 multi Display

4. Display’s Digital Convergence era?
4.1 Most adequate display for OLED Touch panel

5.3 FORECAST; PMOLED PRODUCT by applications
5.5 FORECAST; AMOLED PRODUCT by applications
5.7 FORECAST; AMOLED REVENUES by applications

6. OLED Industry


This report is to percuss the possibility of OLED market future expansion by understanding the electronic products’ design and development trend from many types of OLED installed machines that are for market expansion and profit produces from varieties of SET enterprises.

Starting from Tohoku Pioneer OLED car audio production in 1999, variety usage products are being presented by three big countries, Japan, Rep. of Korea, and Taiwan. Although OLED requires a technological maturation due to its young age, it had succeeded in pocket sized electric machineries.

The black color theme light which cannot be practice in LCD is having its true value as external screen for MP3 and mobile phone that requires a high quality small display screen. The AMOLED application is assured by overcoming the boundaries of passive PMOLED.

The goal of this report is the percussion of market expansion possibility and understanding the electronic product’s design and development with variety types of OLED’S loading machineries that are produced from present set enterprises around the world through the OLD market expansion and originating the revenue.

I. Introduction

II. OLED feature and possible applicable area
1. OLED applied product
2. Mobile phone
2.1 Mobile phone market
2.2 Mobile phone trend
3. MP3 player
3.1 MP3 player market and trend
4. Automobile entertainment machinery market and trend
5. Digital Camera market trend and market prospect
6. PDA trend and market scale

III. OLED applied product
1. OLED equipped Mobile phone applied product
1.1 Korean enterprises OLED equipped Mobile phone
1.2 Japanese enterprises OLED equipped Mobile phone
1.3 United States and Europe enterprises OLED equipped Mobile phone
1.4 China and Taiwan enterprises OLED equipped Mobile phone

2. OLED equipped MP3 player applied product
2.1 Award winners in the MP3 players
2.2 Super light MP3
2.3. Super small PMP or MP3?
2.4 Korea OLED equipped MP3 products
2.5 Japan OLED equipped MP3 products
2.6 United States OLED equipped MP3 products
2.7 Taiwan and Southeast Asia OLED equipped MP3 product
2.8 Europe and Canada OLED equipped MP3 products
2.9 China OLED equipped MP3 products
2.10 Hong Kong OLED equipped MP3 products

3. OLED equipped car stereo products
4.OLED equipped PMP ? NEOSOL cliod
5. OLED equipped products
Appendix I. OLED equipped product manufacturing enterprises list


This report presents a PMOLED and AMOLED’S Product road map and Technical Road Map that are essentially required for OLED panel enterprises, set enterprises using OLED, and including all associated enterprises to examine.
Also, it easily explains special features of OLED structure and the core materials forming the OLED. It also attaches the materials and structures of recent 10 years analyzed displayed organic material enterprises’ patents and representative OLED material enterprises’ development trend.

In order OLED to have serious entry into the market is to turn pocket size PMOLED into AMOLED products. In PMOLED, though Samsung SDI is in process of presenting 1.5 inch external mobile phone and 1.7 inch internal products, the AMOLED 2” mobile phone display will be presented in the market to bring out the expectation of QCIF and QVGA products come to the fore. After all, in order to definitely grab the place in the display market, it is required OLED material development to be preceded so that the TV and monitor market’s early entry is being actualized.

In this report presents the procedure of PMOLED and AMOLED’S Product road map and Technical Road Map development in the future OLED market and entry conditions for expected entry products. In addition, it makes possible to grasp the newly OLED entry enterprises and material enterprises’ development trend since the report contains the representative OLED material enterprises’ most recent research results.


1. Product road map
2. Technical road map

1. Backplane materials
1.1 poly-Si TFT section and constitution materials
1.2 PMOLED substrate section and constitution materials

2. Pixel materials
2.1 OLED pixel section and constitution materials
2.2 Emission Process
2.3 OLED emission/supplement material basic specialties
2.4 Hole Injection Layer (HIL)
2.5 Hole Transfer Layer (HTL)
2.6 Electron transfer layer (ETL)
2.7 Emission materials
2.8 Electrode materials

3. Encapsulation materials
3.1 Encapsulation classification
3.2 Can Encapsulation
3.3 Main glass can patent
3.4 Packaging can transformation through moisture absorption
3.5 Moisture absorption associated main patent
3.6 Sealing materials
3.7 Sealing structure main patent
3.8 Thin Film Encapsulation
3.9 Hybrid Encapsulation
3.10 Hybrid Encapsulation main patents

IV. Brand new emission material development status
1. Eastman Kodak
2. CDT
3. Novaled
4. Merck
5. Sharp
6. UDC

V. Recent organic material patent by main enterprises
1 Eastman Kodak
2 Idemistu Kosan
3 Toyo Ink
4 Vistom, UDC, and CDT
5 LG Chemical

VI. OLED Material enterprises list


A large AMOLED manufacturing is a considerable issue in OLED industry where HDTV broadcasting is becing seriously started and the generalization of high quality imaginings in the screens. This report shows the limitations of fourth generation equipment construction in AMOLED development and the alternatives prepared by each enterprise.

As the high DVD quality image is quickly becoming a default resolution for broadcastings, high quality image resolution display industry had become a top IT industry in modern times.

In many advanced countries including Rep. of Korea, the variety of digital contents led TV markets to move from 20 inch to 30 inch TV screens. A 30 inch display development is recognized as the most important area for panel enterprises.

Current OLED market which the product production was begun by Pioneer still stays with one inch pocked size PMOLED products. SK Display and SONY are producing 2.2 inch and 3.8 inch AMOLED but they are not showing a serious mass production structure. In Korea, Samsung SDI and LG Electronics led PMOLED and AMOLED development, but recently, the world largest TFT-LCD production enterprises, Samsung Electronics and LG Philips LCD are leading the development as well as the mass production.

In TFT-LCD field, a LPL’S worthy opponent Samsung Electronics used a-Si TFT substrate as their start displaying a 21-inch AMOLED in 2005 which made AMOLED products to become more well known. In 2007, a mass production of AMOLED TV will be actualized.

While PMOLED devices have difficulty in producing products that are larger than two inches, AMOLED does not have boundaries on productions. Although TFT-LCD’s special quality had improved with wide screen view and brightness characteristics that almost equals auto luminescent device, the response speed on managing an animated film and the contrast ratio still have not reached a standard level. Especially, a color representing skin on TVs does not look as it really used the auto luminescent device.

Then, the question is where the adequate large market for is for AMOLED? In TV market where TFT-LCD shows its boundaries on showing the color reproducibility and films, 30~40 inch large flat board display market looks as the most effective area in considering the TV market production method’s 32inch above brown tube and 40inch below PDP areas. It is required for OLED to prepare for the market entry in 2007~08 by researching and investing for the fourth generation equipments since that area is expected to be used in most common families.


1. TFT
2. Main work process
2.1 Pixel manufacture work process
2.2 Encapsulation work process

III. Fourth generation equipment development status
1. Needs and limits of equipment development
2. AMOLED Fourth generation equipment issue and alternatives
2.1 Plating
2.2 Ink Jet printing method
2.3 LITI
2.4 Metallic electron thin film formation
2.5 Encapsulation method adequate for Fourth generation

IV. Main equipment enterprises
1. Korean plating equipment enterprise
2. Foreign plating equipment enterprise


This report grasps the research trend by countries and main research trend by enterprises from the comparison of Rep. of Korea, the United States, Japan and Korean and the United States’ patents were quantities/qualitatively compared analyzed. The technology development and patents related by each fields have a close relationship and preceding patents associated by steps’ influence is very large between company’s competitive powers. It is required to develop patents by work process persistently in order to strengthen market security and products’ competition in future market.

OLED, a future generation display had huge technological progress in 2004. They developed external screen for mobile phone and MP3 players which requires a high requirement PMP settling the market. In 2005, a market is being prepared for PMOLED and AMOLED. Throughout many display exhibitions, a 21 inch screens showed up and 40 inch Tile-style OLED was displayed which is now in progress of enlarging development.

According to patent analysis by application and classification code during second half year in 2004 for Rep. of Korea, the United States, and Japan, 160 of total patents were from Seiko Epson which showed an incomparable patent application activity than others. Eastman Kodak had 99 patents having its second place and showed research progress on other than display application.

According to analysis of second half year in 2004 by classification code, about 50% of patents were about organic layer, then module and package. Later on, the organic layer patent included the organic material and structure which is analyzed that the origin is the emission efficiency to be high and long life time material development. According to particular investigation, Samsung SDI, LG Electronics, Kodak, and SEL (Japan) applied the open patent and Idemitsu Kosan applied registered patents. It has been appeared that double emission light patent is being progressed by SEL.

There is a close relationship in each field’s technical development and patents. In each steps of associated preceding patents and the influences affected within corporations is said to very high. OLED’S origin patent is depending on the United State’s Kodak and England’s CDT, but in order to increase the market safety and competition among countries, it is required to lower foreign technology’s dependent.

I. Introduction

II. 2004 second half year open/registered patent analysis
1.1 Patents distribution by month
1.2 Fixed patent quantity comparison analysis by country

III. 2004 second half year open patent analysis
1 Open patent analysis by classification code
1.1 Korean open patent analysis by classification code
1.2 United States’ open patent analysis by classification code
1.3 Japanese open patent analysis by classification code

2. Organic layer patent analysis
2.1 Korean patent analysis by main applicator
2.2 United States patent analysis by main applicator

3 Present status of applicator by countries
3.1 Korean patent open patent trend of applicator by countries
3.2 United States patent open patent trend of applicator by countries

4 Korean open patent analyses by applicator
4.1 Main applicator patent amount status by month
4.2 Main applicator patent amount status by classification code

5 United States open patent analyses by applicator
5.1 Main applicator patent amount status by month
5. 2 Main applicator patent amount status by classification code

6 Japan open patent analyses by applicator
6.1 Main applicator patent amount status by month
6.2 Main applicator patent amount status by classification code

7 All open patent analysis by main applicator

IV. 2004 second half year registered patent analysis
1 Registered patent analysis by classification code
1.1 Korean registered patent analysis by classification code
1.2 United States registered patent analysis by classification code

2. Organic layer patent analysis
2.1 Korean patent analysis by main application
2.2 United States patent analysis by main application

3 Status of applicator by countries
3.1 Korea registered patent trend of applicators by countries
3.2 United States registered patent trend of applicators by countries

4 Korean registered patent analyses by applicator
4.1 Main applicator patent amount status by month
4.2 Korean registered patent analysis by classification code

5 United States registered patent analyses by applicator
5.1 Main applicator patent amount status by month
5.2 United States registered patent analysis by classification code

6 Registered patent analysis by main applicators

V. Conclusion