The BLU (back light unit) is the core component of the LCD for notebook, mobile-phone, navigation, as well as large sized TV, PID (public information display), etc. In order to enhance optical efficiency of LCD, optic...The BLU (back light unit) is the core component of the LCD for notebook, mobile-phone, navigation, as well as large sized TV, PID (public information display), etc. In order to enhance optical efficiency of LCD, optical films with the uniform prism patterns have been used for BLU by stacking two films up orthogonally. In this case, light interference-phenomenon occurred such as Morie, wet-out, u-turning, etc. It caused several problems such as low brightness, spots and stripes in LCD. Recently, the high-luminance micro complex prism patterns are actively studied to avoid the light interference-phenomenon and enhance the optical efficiency. In this study, the roll master to manufacture complex micro prism pattern film was machined by using the high precision lathe. The machined patterns on the roll master were 50, 45, 40, 35, 30, 25, 20, 15, 10 and 5 μm in the pitch with 25.0, 22.5, 20.0, 17.5, 15.0, 12.5, 10.0, 7.5, 5.0 and 2.5 μm in the peak height, respectively. The roll was 2 000 mm in length and 320 mm in diameter. The electroplated roll by copper and the natural single crystal diamond tool was used for machining the patterns. The cutting force was measured and analyzed for each cutting condition by using the dynamometer. The chips and the surfaces after being machined were analyzed by SEM and microscope.展开更多
A reuse fabrication module using micro electrochemistry (MECM) with a round-ball tool to remove the defective In2O3 SnO2 thin film from the surfaces of digital paper display was presented.The etching effect improves t...A reuse fabrication module using micro electrochemistry (MECM) with a round-ball tool to remove the defective In2O3 SnO2 thin film from the surfaces of digital paper display was presented.The etching effect improves that the number of the round-balls decreases for promoting the concentration of electric power and increasing discharge space.Using a small size of the round-ball tool takes less time for the same amount of In2O3 SnO 2 layer removal since the effect of MECM is easily developed for supplying of sufficient electrochemical power.A higher feed rate of the poly ethylene terephthalate (PET) diaphragm combines with enough electric power to drive fast etching rate.A pulsed direct current can improve the effect of dreg discharge and is advantageous to couple this current with the fast feed rate of the workpiece.Through the ultra-precise etching of In2O 3 SnO2,the optoelectronic semiconductor industry can effectively reuse the defective products,reducing production costs.This precision etching process is of high efficiency and requires only a short period of time to remove the In2O3 SnO2 nanostructures.展开更多
本文主要介绍了单晶金刚石刀具,高温高压合成的聚晶金刚石(PCD)刀具,聚晶立方氮化硼(PCBN)刀具及化学气相沉积的金刚石膜(CVD)刀具的特性及应用。我们做了有关CVD刀具与PCD刀具耐磨性的切削试验:通过试验可以看出,CVD刀具确实有较好的...本文主要介绍了单晶金刚石刀具,高温高压合成的聚晶金刚石(PCD)刀具,聚晶立方氮化硼(PCBN)刀具及化学气相沉积的金刚石膜(CVD)刀具的特性及应用。我们做了有关CVD刀具与PCD刀具耐磨性的切削试验:通过试验可以看出,CVD刀具确实有较好的耐磨性,但是在切削时间为17 m in时,由于CVD较PCD脆,在25倍显微镜下观察发现CVD金刚石刀具的刃口有明显的崩刃。另外发现,CVD金刚石刀具在制造及使用过程中也极易出现崩刃现象,所以目前大多数厂家仍以使用PCD刀具为主,CVD金刚石刀具的推广仍需要一个过程。展开更多
基金Project(R15-2006-022-01001-0) supported by the National Core Research Center Program from MOST and KOSEF
文摘The BLU (back light unit) is the core component of the LCD for notebook, mobile-phone, navigation, as well as large sized TV, PID (public information display), etc. In order to enhance optical efficiency of LCD, optical films with the uniform prism patterns have been used for BLU by stacking two films up orthogonally. In this case, light interference-phenomenon occurred such as Morie, wet-out, u-turning, etc. It caused several problems such as low brightness, spots and stripes in LCD. Recently, the high-luminance micro complex prism patterns are actively studied to avoid the light interference-phenomenon and enhance the optical efficiency. In this study, the roll master to manufacture complex micro prism pattern film was machined by using the high precision lathe. The machined patterns on the roll master were 50, 45, 40, 35, 30, 25, 20, 15, 10 and 5 μm in the pitch with 25.0, 22.5, 20.0, 17.5, 15.0, 12.5, 10.0, 7.5, 5.0 and 2.5 μm in the peak height, respectively. The roll was 2 000 mm in length and 320 mm in diameter. The electroplated roll by copper and the natural single crystal diamond tool was used for machining the patterns. The cutting force was measured and analyzed for each cutting condition by using the dynamometer. The chips and the surfaces after being machined were analyzed by SEM and microscope.
基金Project(100-2221-E-152-003)supported by National Science Council
文摘A reuse fabrication module using micro electrochemistry (MECM) with a round-ball tool to remove the defective In2O3 SnO2 thin film from the surfaces of digital paper display was presented.The etching effect improves that the number of the round-balls decreases for promoting the concentration of electric power and increasing discharge space.Using a small size of the round-ball tool takes less time for the same amount of In2O3 SnO 2 layer removal since the effect of MECM is easily developed for supplying of sufficient electrochemical power.A higher feed rate of the poly ethylene terephthalate (PET) diaphragm combines with enough electric power to drive fast etching rate.A pulsed direct current can improve the effect of dreg discharge and is advantageous to couple this current with the fast feed rate of the workpiece.Through the ultra-precise etching of In2O 3 SnO2,the optoelectronic semiconductor industry can effectively reuse the defective products,reducing production costs.This precision etching process is of high efficiency and requires only a short period of time to remove the In2O3 SnO2 nanostructures.
文摘本文主要介绍了单晶金刚石刀具,高温高压合成的聚晶金刚石(PCD)刀具,聚晶立方氮化硼(PCBN)刀具及化学气相沉积的金刚石膜(CVD)刀具的特性及应用。我们做了有关CVD刀具与PCD刀具耐磨性的切削试验:通过试验可以看出,CVD刀具确实有较好的耐磨性,但是在切削时间为17 m in时,由于CVD较PCD脆,在25倍显微镜下观察发现CVD金刚石刀具的刃口有明显的崩刃。另外发现,CVD金刚石刀具在制造及使用过程中也极易出现崩刃现象,所以目前大多数厂家仍以使用PCD刀具为主,CVD金刚石刀具的推广仍需要一个过程。
