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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

The Studying about Major Factors of Manufacture in LED Backlight Module

Chen, Chun-Ho 17 June 2010 (has links)
In the LCD display products source section LED light display product is OK to replace the traditional CCFL light display products, especially in the NB computer and computer monitor are almost over two to three years CCFL products will be completely out of the market. The LCD itself does not glow and need another light source to support it. Backlight module can provide light source to LCD display product. In the early the light source of backlight module is CCFL. But LED light source is going to replace CCFL from 2007. Most of all new developments in the field of the NB computer backlight module changes light source from CCFL to LED. Even the computer monitor light source is starting to use LED too. The development technologies and production quality of the LED backlight module are significant challenges in LED backlight module factory. The purpose of this study was to identify development technologies and production technologies factors of bottlenecks, and finding a solution. And can provide some help to LED backlight module industry terms. This study selects ' 8D process ' to be analysis model. And collect 5 backlight module factories development experience and production status data. Hope these data through 8D analysis process can find the major related factors of development technologies and production technologies. In-depth research, look forward to finding out the production technologies relevant factors oppression ' technical specification ' production. This study is expected to be able to find some effect LED backlight module process yield factor, then apply the stratification out product issues and process issues, this study is intended for process issue do take an in-depth look at the problem and solution, but about product issue will be' design solutions ' way to describe. I believe this research can help LED backlight module industry to reduce production cost and improve the development speed.
62

Discuss the International Merging Activities in Human Resource Management Point of View-According to the Case of TFT-LCD Industry at Taiwan and Japan

Yang, Lih-Shine 09 February 2004 (has links)
First of all, we put an emphasis on the global market status of TFT-LCD, which is also our government¡¦s most important economic investment in the near future. We think it is necessary for Taiwan cooperating with Japan to reach the global No.1 place in TFT-LCD industry since Japan initiates and masters many related technologies. A-Company; however, gets such right chance for multinational combination by taking good use of some key factors¡Xorganization integration, communication and human resources management. Because TFT-LCD products get short-lasting life and fast-advancing technology, A-Company must be greatly expanding its investment annually. Although the company has independent technologies, it still has to rapidly enhance its competitiveness on global purchase, global distribution and global service through making cooperation with other technical corporations. Thus, how to take advantage of both companies¡¦ interior resources to create even more high values is meaningful to A-Company. This research shows that organization integration, personal factors, organization promises and individual defense will affect merger achievements. We design a questionnaire and use SPSS for quantification analysis to strengthen the reliability and validity of our research. Lastly, we bring out the final results and conclusions for A-Company reference. According to the questionnaire we find out that, A-Company employees think the high-level managers play quite an important role in the organization integration; their communication and expression on human resource management will directly affect merger achievements. Nevertheless, the company seems not participate in the consolidating planning before combination and not elaborate on the communication after that which leads it into negative effects after combination. From this, we deeply realize that ¡§Manpower¡¨ is the most emphasized resource for consolidating business. Our conclusion is that many failure factors of overseas or domestic combination business are also applied to TFT-LCD Company, and therefore, we think that the success factors during its merger can be imitated by other industries as well. Anyhow, it¡¦s a real pity for A-Company¡¦s not taking good application to academic researches and some successful measures from other business. In sum, there are not only multinational cooperation but also multicultural races merging in the special TFT-LCD industry which reveals a fact that the affiliation of academia will speed up this industry¡¦s growth.
63

The Study of Southern Science Park TFT-LCD Indstrial Cluster

-Wen, Zheng 20 July 2004 (has links)
The original of industrial cluster analysis is to distinguish what is cluster. It is developing to overview industrial district and to conclude the potential industry. In the light of these defects, we cloud improve them for industrial development. This industrial cluster analysis of variables by literatures, including of Industrial Concentration Factor, Cluster Dependency Factor, Economic Prosperity Factor, and four strategic resources that influence development of cluster, including of High Quality Human Resource, Technology and Knowledge Resource, Infrastructure, Capital. Using the questionnaire and interview with members in the cluster. The results of research: (1)There is a orientation of TFT-LCD industrial cluster in the Southern Science Park and show a vertical industrial cluster than horizontal cluster. (2)Material and Key part of equipment is complete and available, but there is only one application firm that produces large TFT-LCD. (3) TFT-LCD industry is important in the district and creating economic development. (4)It is difficult to find many talents about TFT-LCD industry and High Quality Human Resource is positive effect to this cluster.(5)As a result of TFT-LCD industry is at initial stage, they have less demand of Technology and Knowledge Resource, but it is increasing in the future.(6)The films are satisfied of water and electricity system, but they think that the staff cloud not get better quality of life in the district.(7) As a result of using capital without borders and Taiwan¡¦s government take TFT-LCD industry seriously, the films get capital smoothly. Key words¡GSouthern Science Park ¡BThin-Film Transistor Liquid-Crystal Display ,TFT-LCD¡BIndustrial Cluster¡BLocation Quotient.
64

Low Voltage Differential Signaling Transceiver

Huang, Jian-Ming 26 July 2004 (has links)
We propose two kinds of 1.0 Gbps LVDS ( low voltage differential signaling ) transceivers for LCD ( liquid crystal display ) in this thesis. LVDS has become a popular choice for high-speed serial links in large-sized display units. Our designs are an I/O interface circuit for Gbps operation which is fully complied with the IEEE STD 1596.3 (LVDS). A step-down voltage regulator is employed to reject the noise coupled in the system power supply. In the first design of the transmitter, a CMFB (common mode feedback) circuitry is utilized to stabilize the common voltage in a pre-defined range. In the second design of the transmitter, we try to use a DC bias circuitry to stabilize output common mode voltage to further improve the stability of the common mode voltage. By contrast, a regenerative circuit which provides a positive feedback loop gain between the preamplifier and the output buffer in the receiver such that the received bit streams can be correctly restored
65

The research of high level executives management concept in the TFT-LCD industry ¡Vtake Taiwan site as an example

KUO, KUNG-MU 31 July 2005 (has links)
In industrial competition¡A business cost is reduced by the strategies such as the enhancement of production efficiency¡A the reformation of operational procedure¡A and the expansion of economic scale to have the enterprise enhance its competitiveness in encountering the competitive external environmental changes for securing a favorable status in business operation. The framing and implementing of successful strategies depend on the wisdom and daring of the business operator in leading the enterprise. Hence¡A the business operator or the high-level executives¡¦ leadership in the organization as well as the perception and daring in business planning play a critical role in determining the success or failure of an enterprise. The focus of this study is on exploring how the TFT-LCD high-level executives in the high-tech industry under high-tech¡A capital-intensive¡A and competitive TFT-LCD environment use their keen perceptions and management concept in leading the organization to break through the dilemma by plant establishment¡A plant expansion¡A and investment expansion¡A and have a dominating status in the TFT-LCD industry. The research interests are as the followings¡G 1.To understand the differences of the management concepts among the high-level executives of various enterprises in the environment with intensive-capital risks. 2.To understand the ways of the TFT-LCD industry in Taiwan for breaking through the plight under international competition. 3.To compare the management notions of the high-level executives in TFT-LCD industry with those of the world celebrated enterprise leaders. After reading the related literatures¡A on the basis of the three forgoing subjects and the spirit of qualitative research¡A case study is conducted as the theoretical foundation¡A and three high-level executives in the TFT-LCD industry are interviewed¡A with the information analysis of the interview result¡A this research is expected to have the following contributions¡G 1.Presenting and comparing the management concepts and differences of the high-level executives in the TFT-LCD industry of Taiwan. 2.Generalizing the ways of the high-level executives in the TFT-LCD industry of Taiwan in breaking through the barriers under international competition. 3.Comparing the management notions of the high-level executives in TFT-LCD industry with those of the world celebrated enterprise leaders. Accordingly¡A the presentation of the management concepts of the high-level executives in the TFT-LCD industry of Taiwan and the ways of breaking through the plight could be taken by the future high-level executives of the intensive-capital hi-tech industry as the reference for management.
66

Simulation of mico-lens array for LED lighting

Lin, Ming-Cheng 30 January 2008 (has links)
Recently liquid-crystal display (LCD) has the highest output value and most popular usage of flat panel display in monitor. The advantage of LCD is low electric quantity consumption, light quantity and thin thickness. LCD has substituted for the traditional screen monitor. The back light module, color filter and actuation IC are three major cost structures in LCD. The optical film is the most used structure in back light module, which is used to increase brightness, luminate evenly the panel and prove illuminant efficiency. The liquid crystal does not irradiate, therefore, the back light module is accessory of liquid crystal display, especially the LCD has advanced the size over 60 inches dimensions. When the panel enhances its size, the cost of back light module correspondently increase, even achieve to 50%. The importance of back light module in LCD can be understood. This study is to develop an innovation of gapless compound polygonal micro-lens. The manufacturing process includes lithography, reflow, electroforming and hot embossing technologies. Also the TracePro software is applied to facilitate the design. LED is used as the illuminant without diaphragm simulation. It enables the optical film to achieve an optimum condition. Using the gap optical film, we need to apply 3~4 pieces in the back light module. When we use the gapless optical film to make film to increase largely the light efficiency, we expect to use 1~2 pieces in the back light module. In this case it can reduce the cost and promote the competition of the domestic manufacturer.
67

Studies of polarization-independent Fresnel liquid crystal lens

Huang, Shian-Yi 24 July 2008 (has links)
This study proposes a polarization-independent liquid-crystal Fresnel lens using the twisted nematic liquid crystal (TN-LC). At the high voltage state, the TN-LC behaves as an optically anisotropic material which makes the proposed LC Fresnel lens possess a polarization-insensitive characteristic. Two kinds of LC Fresnel lens, photoresist type and patterned electrodes type, are prepared in our experiment. Experimental results reveal that the photoresist type has a high diffraction efficiency and a good polarization-independent characteristic. However, its diffraction efficiency cannot be switched off. Contrarily, the patterned electrode type has the characteristics of the switch-off and good polarization-independent with a moderate diffraction efficiency
68

Performance Evaluation of Treating Optoelectronic Industrial Wastewaters by a Simultaneous Electrocoagulation/Electrofiltration Process Using Multi-Tubular TiO2/Al2O3 Composite Membranes

Yen, Chia-Heng 27 August 2008 (has links)
Water is essential for life as well as industrial growth. Therefore, this research is mainly to explore the treatment capacity of LCD (Liguid Crystal Display) industrial wastewater recycling by a simultaneous electrocoagulation/electrofiltration (EC/EF) process using laboratory-prepared multi-tubular TiO2/Al2O3 composite membranes. First, tubular membrane supports of Al2O3 were prepared by the extrusion method. Then the slip composed of nanoscale TiO2 (prepared by sol-gel process) was applied on the aforementioned tubular membrane supports by the dip-coating method, followed by sintering to obtain tubular TiO2/Al2O3 composite membranes. Then, two types of LCD industrial wastewaters (designated TFT-LCD wastewater and STN-LCD wastewater, respectively) from different LCD fabrication plants were treated by EC/EF process using TiO2/Al2O3 composite membranes. Moreover, the permeate qualities were evaluated under the recirculation-mode operation. In addition, the effects of different operating parameters (i.e., electric field strength, trans-membrane pressure, and crossflow velocity) on membrane flux and permeate quality were evaluated. Relations of the water quality and the different operation modes (i.e., the recirculation mode, flow-through mode, and secondary treatment mode) were also discussed. Finally, the effects of changing the backwash time and backwash cycle on membrane flux were investigated. In the recirculation mode, both kinds of wastewater achieved a satisfactory organics and anion removal. An average of about 90¢H of COD (Chemical Oxygen Demand) and TKN (Total Kjeldahl Nitrogen) could be removed. For anions (i.e., NO3¡Ð, NO2¡Ð, Cl¡Ð and SO42¡Ð), their removal efficiencies were all over 90%. Furthermore, TOC (Total Organic Carbon) and turbidity also had removal efficiencies of over 98%. When the operation mode was changed from the recirculation mode to flow-through mode, the changes of permeate quality were not obvious. But the cumulative quantity of permeate of the flow-through mode was greater than that of the recirculation mode. As for the experimental result of the secondary treatment mode, the permeate qualities were found to be improved. In this case, an average removal of over 95% of NO3¡Ð, NO2¡Ð, Cl¡Ð, and SO42¡Ð could be obtained. According to experimental results shown above, the treated water could be recycled and reused as the cooling tower make-up water if its pH and conductivity values were reduced. However, these problems could be easily resolved by proper adjustments of pH. Overall speaking, the tubular TiO2/Al2O3 composite membranes and simultaneous EC/EF treatment module employed in this work are capable of treating LCD industrial wastewater for the purpose of reclamation.
69

Quantifiable research cluster effect: the diamond model

Liu, Chun-kuang 26 June 2009 (has links)
Micheal Porter ¡§the country competitive advantage which¡¨ publishes in 1990 (The Competitive Advantage of Nations) in a book, proposed the industrial cluster the strong character which acts in the national competitive power, ¡§scientific and technical park¡¨ the idea is also the industrial cluster concept derivation to a certain extent. In the past concentrated in the industrial cluster's research in the metropolis plan study and the regional economies domain, few had the management science stratification plane discussion, after 1990 Micheal Porter publication diamond model (Diamond Structure model), grew the industrial cluster's research to further management stratification plane in and so on enterprise's strategy, competition, market demand and industrial structure subjects. However, Porter in the diamond model, had not mentioned how to compare and appraise between the different cluster the cluster effect height, is also lacks a set to be possible the quantification model. In order to solve in the Porter diamond model to lack the quantification model the question, this research application analogism, quotes Newton (1687) the law of universal gravitation which proposed in "Natural philosophy's Mathematics Principle" to take the analogy, develops the cluster relative effect the comparison model, explained why during different essential factor in an industrial settlement's will have the cohesion phenomenon, will form the cluster effect finally. In this study, Central and Southern Taiwan Science Park's TFT-LCD industry as the research object, evaluation of these two science parks in the TFT-LCD industry cluster effect on the merits, to verify the model's feasibility in real life. In the final results, will be the evaluation of the scores of small movements do multiply, the two parks, the Southern Taiwan Science Park to obtain higher scores, it can be said that the Southern Taiwan Science Park, TFT-LCD industry cluster effect higher. By Porter in the diamond model's five big essential factor classification, in ¡§factor of conditions¡¨ and ¡§related and supporting industry¡¨ in these two essential factors, the Southern Taiwan Science Park was in the upper hand; In ¡§demand condition¡¨ and ¡§firm strategy, structure and rivalry¡¨ on, is the Central Taiwan Science Park holds the superiority; As for in last item ¡§government and opportunity¡¨ in the comparison, two campuses are equally matched. Finally, also at the Central Taiwan Science Park and Southern Taiwan Science Park development on the current problems faced by comment, I hope the next government as a policy planning in the industrial park on the proposal, which is newly developed in this study "cluster can be quantified effect model "where the ultimate goal.
70

Taiwan's TFT-LCD equipment industry competitive analysis

Ho, Feng-lin 06 August 2009 (has links)
Japan and Korean¡¦s TFT-LCD industries consider the competitiveness of the cost. So their proportion of local equipment setting is more popular than Taiwan.Instead, Taiwan¡¦s equipment industries development priority need to increase the number of productions by new equipment and shorten the lead time and achieve the high quality of productions. However, TFT-LCD factories can save the cost of investment and raise the investment efficiency of operating cost to improve the ROI (Return On Investment). This thesis compares and analyzes the competitiveness of the industry in TFT-LCD equipment among Taiwan, Japan and Korea. In the Porter¡¦s (1990) book ¡§The ompetitive Advantage of Nations¡¨ that mentioned about the ¡§Diamond Structure¡¨. So, we have to nalyzeand realize totally at the industry of the equipment¡¦s inside factor with six aspects ¡§ Demand Conditions¡¨, ¡§Firm Strategy, Structure and Rivalry¡¨, ¡§Factor Conditions¡¨ and ¡§Related and Supporting Industries¡¨ and the other outside factors ¡§Government¡¨ and ¡§Opportunity¡¨. The research of this paper shows that how the equipment industries of Taiwan use their own resources and competition advantages to compete with Japan country which quite maturity in TFT-LCD equipments. And Korea country with strong support by their government, for this reason, they can earn their own stage and further surpasses the others among the intense of competition industries. Therefore, widely collecting research paper, industry's news, specialized periodical and interviewing the important grades of personages of related industrial by the questionnaire, with that results. Then we can understand Korea and Japan¡¦s TFT-LCD equipment industry's mpetitiveness deeply. At the end, we can put forward the conclusion and suggestions by these studies and we can take it for our references on industry's development strategy of the equipment and afford the suggestion of consulting to our government's policy for Taiwan.

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