FPD Slim Panel Best Solution Global Display Taiwan Co., Ltd

Contents 1 Company Introduction 2 Technology Comparison 3 GD Sliming Technology

Company Introduction GD (Global Display)

GD Taiwan Overview Global Display Taiwan Co., Ltd. (技迪科技股份有限公司) Headquarters in Taichung (臺中) No. 8, Jing 3rd Road, Wuchi Township, Taichung County 435, R.O.C. Service FPD Slimming Manufacturing Sales & Customer Service Center ● Taichung GD Taiwan Co., Ltd GThings to be added Shareholder Customer status/PO/Contracts Raw data from each team Things to be added This is our business model. Our business model is to provide total solution for glass sliming by in house and outside service. Also we can sell the equipment with chemical supply. Some of customer in China is asking GD to setup sliming line in their fab and operate the line. Basically, we can discuss with customer and decide the business model.

Company History 2004 05 Glass Slimming Patent Application (Japan) 08 Glass Slimming Patent Application (Korea) 2005 Glass Slimming Patent Application (Taiwan) 06 GD Foundation 07 Glass Slimming Demo(Lab) Machine Setup 11 Glass Slimming Patent Issued (Japan) 2006 09 Mass Production Line Setup Completion and B-company Business Start Glass Slimming Patent Issued (Korea) 12 GD / Taiwan Fab 1 Setup Start 2007 03 GD / Taiwan Production Line Setup Start 04 GD / Taiwan Mass Production Start GD / Taiwan Approved by ISO 9001 Certification 10 GD / Taiwan New Fab Setup Start 2008 3 GD / Taiwan Start ISO 14000 & QC 080000 System Certification 4 GD / Taiwan New Fab (Fab #2) MP Start 5 Glass Slimming Patent Issued (Taiwan) 7 GD / Taiwan Approved by ISO 14000 Certification This is history of our company. Before GD was founded, Japanese inventor filed for patent in Japan, Korea and Taiwan. When GD was founded, GD bought all the patents and pilot system from the inventor. And the pilot system was moved to Demo Lap in Korea. Japan patent was registered in Nov, 2005. and Korea patent was registered in Sept, 2006. From Sept, this, GD started production for Korea customer (BOE) And our mass production line is ready.

This is history of our company. Before GD was founded, Japanese inventor filed for patent in Japan, Korea and Taiwan. When GD was founded, GD bought all the patents and pilot system from the inventor. And the pilot system was moved to Demo Lap in Korea. Japan patent was registered in Nov, 2005. and Korea patent was registered in Sept, 2006. From Sept, this, GD started production for Korea customer (BOE) And our mass production line is ready.

CEO Johnny Su

Glass Slimming Total Solution Company Business Model Glass slimming service through In-house line / outside fab Equipment Sale + Chemical Supply Customer fab design, set-up, & operation Glass Slimming Total Solution Company

Technology Comparison GD (Global Display)

Chemical Slimming (Shower Spray) Glass Slimming Method Method Feature Weak Point Slim Glass Corning developed 0.4t Glass : 370X470mm size Panel Thickness : > 0.8t (market mainstream will be 0.6t) Low yield – -Glass bending & breakage High Price Main systems need to be modified Mechanical Polishing Mechanical grinding of the glasses using expensive machine and slurry High Price & Low Throughput Labor Intensive Mechanical Stress - Easy to broke Chemical Slimming (Dipping) Dipping in the HF base chemical bath at high temperature (>40 ℃) Unstable uniformity Waste water (HF) High environment risk Chemical Slimming (Shower Spray) Spray with HF base chemical at room temperature New Chemical Slimming (Down Flow) Easy to control Mura Panel surface contamination easy to make defect => Pre cleaning This is comparison of sliming method & sliming glass. The Weak points of using the slim glass is low yield and high price. And Main system in TFT array should be modified to use less then 0.4mm substrate. Mechanical sliming method is lapping & polishing. Its’ weakness is lower thoughput, also, the slimed glass is broken easily due to mechanical stress. And Conventional chemical etching method is dipping the glass into HF based chemical bath. And its’ weakness are unstable unif and higher process temperature.

Chemical Slimming Method Item Dipping In line Shower Shower Spray Etch rate ○ ◎ Patent Owner Casio, Japan Epson, Japan GD, Korea Handling type Batch In line Image Layout This is the concept of chemical sliming method. First one is dipping, and the 2nd one is horizontal chemical spray. And the last one is vertical spray method, which we are using. Horizontal inline shower method was not used for mass production because the productivity is low.

Chemical Slimming Method Dipping Shower Spray Method Dip the glass in the bath and etching the glass by circulating HF solution Glass etching by spraying HF solution Feature Uniformity Unstable - Glass to Glass Uniformity (5~10%) Stable Uniformity( < 2.0%) Thickness Large size limitation (Sanwa, Japan) -Improved unif. by bubbling, but high risk of glass breakage < 0.6T Possible ~0.1T Size Up Bath size limitation No limitation Process Temp. > 40℃ Room temp. ~ 25℃ Environment Issue HF volatile due to high temperature Waste chemical happen too much Less HF usage than Dipping owing to HF Recycling Now, I’m going to compare the dipping & spray type. As I mentioned, dipping type shows unstable unif because it’s very hard to keep the same concentration of chemical in the bath. So, they used bubbling to improve the unif, but it cause glass breakage. So, they said they can’t slim larger than gen 4.5 glass by dipping type. On the other hand, spray type shows very good unif and we can slim below 0.1mm and since there is no limitation of bath size, we think we can slim up to gen 5.5 size.

GD Slimming Technology GD (Global Display)

Auto End Seal Equipment GThings to be added Shareholder Customer status/PO/Contracts Raw data from each team Things to be added This is our business model. Our business model is to provide total solution for glass sliming by in house and outside service. Also we can sell the equipment with chemical supply. Some of customer in China is asking GD to setup sliming line in their fab and operate the line. Basically, we can discuss with customer and decide the business model.

Slimming Equipment (Etcher) This is our inline etching system. Glass is loaded into cassette and the cassette moves from front to to edge. All etching process, cleaning, etching, rinse, and dry process is finished at one time in this system. You can see our production system when you visit our company.

Process Sequence (TSE #1) IQC Sealing (option) Pre-Clean Rinse 1 Etch Rinse 2 Packing OQC Dry Final Rinse Neutralization In-line slimming process ; Pre-cleaning, Etching, Rinse and Dry

Process Sequence (TSE #2~4) IQC Sealing (option) Rinse 1 Etch Rinse 2 Packing OQC Cleaner Batch type slimming process

Process Sequence (TSE #5) IQC Sealing (option) Pre-Clean Rinse 1 Etch Rinse 2 Packing OQC Cleaner Down Flow type Slimming process

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