TFT-LCD panel driver IC using dynamic function shuffling technique

Shima, Takeshi; Itakura, Tetsuro; Minamizaki, Hironori; Yagi, Tetsuya; Maruyama, Toru

doi:10.1109/isscc.1997.585330

Cited by 9 publications

(7 citation statements)

References 4 publications

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“…Among these, the use of LCD displays for notebook computers has increased rapidly as the market continues to grow and an increasing proportion CRT displays are also being replaced by LCDs. Elsewhere, panels for mobile phone displays have also become a product with excellent growth prospects [5]. Flat panel LCD displays are the way of the future, and their rapid development in recent years has made them one of the most important items in today's high technology field.…”

Section: Introductionmentioning

confidence: 99%

The Removal of In2O3SnO4 Using a Round Bar-Shaped Micro Machining Tool for the Economic Recycling of Defective Displays

2011

KEM

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A newly devised process using round bar-shaped electrodes and ultrasonic enhancement in a micro-electrochemical machining (UMECM) process is described. The purpose is the precise removal of In2O3SnO2thin-film nanostructures from optoelectronic flat panel display color filter surfaces. In the current experiment it was found that a large surface area cathode and a small gap-size between the cathode and workpiece was found to remove the In2O3SnO2rapidly. A high feed rate of the workpiece (the display with color filter) and adequate electrical power results in fast machining. Pulsed direct current improves dregs discharge and this is an advantage with a fast feed. A high electrode rotational speed also corresponds to faster removal of the In2O3SnO2nanostructures. The development of the proposed precision production design is based on both technical and economic considerations.

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Section: Introductionmentioning

confidence: 99%

The Removal of In2O3SnO4 Using a Round Bar-Shaped Micro Machining Tool for the Economic Recycling of Defective Displays

2011

KEM

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“…Color filters are the critical component in LCDs since each TFT array is matched to a color filter of the same size. This means that the quality of the color filter has a decisive effect on the LCD's color reproduction (2). The reproduction of color imagery in TFT displays is achieved through the use of color filters in concert with a backlighting system.…”

Section: Introductionmentioning

confidence: 99%

Design of Three-Stratum Tool in Indium-Tin-Oxide Removal

Pa¹

2009

ECS Trans.

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A design of three-stratum tool is presented as a machining tool for removing the Indium-tin-oxide (ITO) thin-films from displays' color filter surface of TFT-LCD in electrochemical etching process. The low yield of ITO persists throughout the entire semiconductor production process. For the precision re-moval processes, a narrow width of the three-stratum tool and a short height between the three-stratum tool and the displays' color filter surface provides an effective removal performance. A pulsed current can improve the effect of dreg discharge and contributes to the achievement of a fast workpiece (displays' color filter) feed rate, but raises the current rating. A displays' color filter with a fast feed rate is combined with enough elec-tric power to provide highly effective removal. An effective de-sign of the three-stratum tool and a low-cost recycle processes using the just needs quite short time to make the ITO thin-films remove easily and cleanly.

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“…The TFT-LCD industry is the next hottest industry after semiconductors in the 21 st century (1). The LCD is the most common display now in use in many environments.…”

Section: Introductionmentioning

confidence: 99%

“…The development in FPD, especially in TFT-LCD (thin film transistor liquid crystal display), has made the TFT-LCD industry one of the fastest growing industries in the world following the semiconductor industry. The TFT-LCD industry is the next hottest industry after semiconductors in the 21 st century (1). The LCD is the most common display now in use in many environments.…”

Section: Introductionmentioning

confidence: 99%

Design of Disc-Shaped Tool in Electrochemical Removal of Displays' Color Filter Reclaim Process

2008

ECS Trans.

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A new design system using a disc-shaped cathode as a tool electrode and electrochemical removal as a precision reclaiming process of ITO thin-film removal from optoelectronic flat panel displays' color filter surface is presented. The electrochemical machining just needs quite a short time to remove the ITO film easily and cleanly. In the current experiment, a large major axis of the disc-shaped cathode or a small minor axis of the disc-shaped cathode corresponds to a higher removal rate for the ITO thin-film. A large flow rate of the electrolyte, a higher temperature, a high rotational speed of the electrodes, or a higher concentration of the electrolyte corresponds to a higher removal rate for ITO thin-film. Pulsed direct current can improve the effect of dreg discharge and is advantageous to be associated with the fast feed rate of the workpiece, but this raises the current rating. A higher feed rate of displays' color filter combined with enough electric power produces fast electrochemical removal. Through the ultra-precise removal of thin film microstructure, the semiconductor optoelectronic industry can effectively recycle defective products, reducing production costs.

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TFT-LCD panel driver IC using dynamic function shuffling technique

Cited by 9 publications

References 4 publications

The Removal of In<sub>2</sub>O<sub>3</sub>SnO<sub>4 </sub>Using a Round Bar-Shaped Micro Machining Tool for the Economic Recycling of Defective Displays

The Removal of In<sub>2</sub>O<sub>3</sub>SnO<sub>4 </sub>Using a Round Bar-Shaped Micro Machining Tool for the Economic Recycling of Defective Displays

Design of Three-Stratum Tool in Indium-Tin-Oxide Removal

Design of Disc-Shaped Tool in Electrochemical Removal of Displays' Color Filter Reclaim Process

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