scholarly journals A Study on the Injection Molding for the Light Guide Plate of a Small Sized LCD (2) : Influences of Processing Conditions on the Brightness

2002 ◽  
Vol 11 (4) ◽  
pp. 341-348
Keyword(s):  
Injection Molding ◽  
Light Guide ◽  
Processing Conditions ◽  
Light Guide Plate ◽  
Guide Plate

Simulation of Injection Molding of Ultra-Thin Light Guide Plate with Hemispherical Microstructures

2012 ◽  
Vol 503 ◽  
pp. 222-226 ◽  
Author(s):  
Peng Wei Dong ◽  
Zhong Li Zhao ◽  
Da Ming Wu ◽  
Ya Yun Zhang ◽  
Jian Zhuang
Keyword(s):  
Residual Stress ◽  
Injection Molding ◽  
Production Efficiency ◽  
Light Guide ◽  
Low Cost ◽  
Mold Temperature ◽  
Main Element ◽  
Melt Temperature ◽  
Light Guide Plate ◽  
Guide Plate

Micro injection molding is used widely owing to its high accuracy, high production efficiency, low cost and can fabricate products with complex structures. For optical components, the residual stress is a main element for quality. In this research, the light guide plate is used as the study object. The light guide plate was designed by software Pro-E, and was simulated by Moldflow for filling process. Orthogonal method was used in this research. The most important factor that affects residual stress level is mold temperature. The level of the different process parameters on residual stress are mold temperature, packing time, packing pressure and melt temperature.

Research on the Key Technology of Precision Injection Molding Equipment for Light Guide Plate

2009 ◽  
Vol 87-88 ◽  
pp. 306-310 ◽  
Author(s):  
Peng Cheng Xie ◽  
Gang Gou ◽  
Zhen Xing Wen ◽  
Yu Mei Ding ◽  
Wei Min Yang
Keyword(s):  
Corrosion Resistance ◽  
Injection Molding ◽  
Influencing Factors ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Light Guide ◽  
Surface Hardness ◽  
Tungsten Alloy ◽  
Light Guide Plate ◽  
Guide Plate

The light guide plate is an important element of the LCD backlight module which demands a certain degree of transparency and uniformity of gray. The defects such as black spots and yellow surface appeared when the light guide plate was processed by domestic equipments. The main problem was caused by the plasticization unit. The Influencing factors of performance for polycarbonate (PC) special screw were discussed in this paper. The conveyance capacity of melt in the metering zone of injection screws with different flight width and channel depth was analyzed by POLYFLOW software. In order to obtain high surface hardness, corrosion resistance and smoothness of PC special screw, surface coating processing was the key point for injection molding light guide plate. Moreover, the peel strength of PC with different coating processing metallic block was tested and measured. he experimental results of the analysis showed that the nickel-tungsten alloy plating and physical vapor deposition can significantly improve stripping properties, corrosion resistance and smoothness. The influencing factors of coating and PC materials’ stripping were analyzed. Through industrial testing, the defective rate of light guide plate had been greatly reduced with physical vapor deposition compared to the screw with hard chromium plating.

Replication and comparison of concave and convex microlens arrays of light guide plate for liquid crystal display in injection molding

2010 ◽  
Vol 50 (8) ◽  
pp. 1696-1704 ◽  
Author(s):  
Jong Sun Kim ◽  
Dong Sung Kim ◽  
Jeong Jin Kang ◽  
Jong Deok Kim ◽  
Chul Jin Hwang
Keyword(s):  
Liquid Crystal ◽  
Injection Molding ◽  
Light Guide ◽  
Liquid Crystal Display ◽  
Microlens Arrays ◽  
Light Guide Plate ◽  
Guide Plate

P-70: Light Shifted Light-guide Plate for Simple Multi-view Spatial/Temporal Hybrid Autostereoscopic Display

2016 ◽  
Vol 47 (1) ◽  
pp. 1399-1401 ◽  
Author(s):  
Gun-Wook Yoon ◽  
Seok-Won Bae ◽  
Hyun-Seung Cho ◽  
Jun-Bo Yoon
Keyword(s):  
Light Guide ◽  
Autostereoscopic Display ◽  
Light Guide Plate ◽  
Guide Plate

P-68: Optical Tapered Array in Light-Guide Plate Fabrication for Enhancing Backlighting Brightness

2006 ◽  
Vol 37 (1) ◽  
pp. 454
Author(s):  
Hsiharng Yang ◽  
Wei-Shan Cheng ◽  
Ruey Fang Shyu ◽  
Feng-Tsai Weng
Keyword(s):  
Light Guide ◽  
Light Guide Plate ◽  
Guide Plate

scholarly journals Two-dimensional distribution design of micro-prism for partial integrated light guide plate

2019 ◽  
Vol 68 (3) ◽  
pp. 038502
Author(s):  
Ping Xu ◽  
Wei Yang ◽  
Xu-Lin Zhang ◽  
Tong-Zheng Luo ◽  
Yan-Yan Huang
Keyword(s):  
Light Guide ◽  
Two Dimensional ◽  
Light Guide Plate ◽  
Guide Plate ◽  
Dimensional Distribution
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