感壓膠（Pressure Sensitive Adhesive, PSA）於LCD產業中運用於光學級薄膜與薄膜、薄膜與LCD玻璃基板貼合之黏著劑，目前以高清晰、高透過率為主。 本研究首先製備光擴散型感壓膠，是將其silicone光擴散粒子混入感壓膠中，依添加不同劑量的silicone粒子並塗佈於透明基材上，使原本透明基材具有霧度（Hz:75）、（Hz:55）、（Hz:35）的光學薄膜，其霧度（Hz:75）屬於高霧度，霧度（Hz:55）與（Hz:35）分別為中霧度與低霧度之光學膜。
實驗中，探討（Hz:75）、（Hz:55）、（Hz:35）三種不同霧度的光學薄膜之感壓膠物理性質包括初期黏著力、對鋼板接著力、對玻璃接著力、凝聚力（cohesion），與信賴性測試。將所製備而成的三種不同霧度的膜材搭配分別於LCD Cell上層與下層的面板，測試其可視角度與霧度的關係（搭配於上層時）與評估替代中小尺寸LCD背光模組擴散膜性質之探討（搭配於下層時）。在光擴散型感壓膠搭配LCD上層光學測試結果，發現在LCD上層加上一層光擴散層，是有效將LCD的可視角度作提升，且提升的效果與霧度的高低有關係，霧度越高，可視角度的輝度也增大。在搭配LCD下層光學測試結果，光擴散型感壓膠薄膜光均勻度不及一般在背光模組的擴散膜的效果，且霧度越高，光擴散均勻度越佳，在現在中小尺寸面板成本降低、輕量化與薄型化的趨勢下，以光擴散型壓克力感壓膠替代比較昂貴的擴散膜（板），可以作為往後研究發展的方向。

In the LCD industry, the major purpose of Pressure Sensitive Adhesive (PSA) is to treat it as the contemporary adhesive to the function of the bounding between optical thin films and even to the LCD panel substrate. The previous intention of this function is for the profit of high transparency and vision purity.
On this research, the preparation of the PSA is needed previously. Further, the admixture is based on the host with gradient consistency of the Silicone particle. Then the coating on the transparent substrate is performed. After these sequences, the clear substrate became another characteristic optical thin film consisted with the fog property (Hz: 75, Hz: 55, Hz: 35). Among these, the high degree of fog is sorted to Hz: 75, middle degree as Hz:55, and low for Hz:35 respectively.
In our experiment, the physical characteristics for PSA of these three different products have been examined through the tack test, binding force upon the steel plate and glass, the cohesion, and the reliability test. After these foundational tests, we collocated these three sorts upon upper and rear surface of the LCD cell respectively. Furthermore, the optical measurement has demonstrated their different degree of fog toward the induced viewing angle (upper surface of the cell) and the further discussion of diffusion circumstance in the small-size-back-light module (rear surface of the cell).
When our products coated on the LCD panel, the optical measurement for that display has proved the viewing angle has been raised effectively, and the correlation to the degree of fog is positive correlated also. Higher degree of fog will produce higher luminance of the viewing angle. The optical measurement for the rear surface application could also tell us their intrinsic advantage for the diffusive function due to their scattered particles. Higher degree of fog will also produce better uniformity of the diffusion mechanic. In this present LCD industry, the congenital advantage for this application could remind us to have the inclination to take the place of the conventional sumptuous diffusive plate but with equivalent capability. This will be a potential research topic.

中文摘要......i
英文摘要......ii
誌謝......iv
目錄......v
表目錄......viii
圖目錄......ix
第一章 緒論.......1
1.1 前言 .......1
1.2 研究動機.......4
第二章 相關理論與文獻回顧.......6
2.1 壓克力系感壓膠.......6
2.1.1 接著種類.......6
2.1.2 壓克力感壓膠的製造.......7
2.1.3 接著原理.......10
2.1.4 感壓膠黏著劑的物性.......13
2.2 光擴散的原理.......17
2.2.1 折射率（Refractive Index）......17
2.2.2 光散射(Light Scattering) ........18
2.3 光擴散的應用........19
2.3.1 前光源抗眩處理方式(外部擴散)........19
2.3.2 背光源擴散處理方式(內部擴散) .......20
第三章 實驗方法 .......21
3.1 實驗藥品.......21
3.2 實驗儀器.......22
3.3 實驗步驟.......25
3.3.1 光擴散型感壓膠製備.......25
3.3.2 塗佈膜材製備.......25
3.4 實驗流程.......26
3.4.1 光擴散型感壓膠製備流程圖.......26
3.4.2 光擴散型感壓膠物性測試流程圖.......27
3.4.3 光擴散型感壓膠光學測試流程圖.......28
3.5 製備與測試條件.......29
3.5.1 濕式塗佈機.......29
3.5.2 光擴散型感壓膠物性測試.......30
3.5.3 光擴散型感壓膠光學測試.......33
3.5.4 光擴散型感壓膠信賴性測試.......41
第四章 結果與討論 .......42
4.1 Silicone光擴散型粒子.......44
4.2 光擴散型感壓膠的製備.......45
4.3 光擴散型感壓膠的霧度表現與粒子分散狀況.......49
4.4 光擴散型感壓膠物性測試.......56
4.4.1 初期黏著力（TACK）.......56
4.4.2 對鋼板接著力（SUS）.......57
4.4.3 對玻璃接著力（GLASS）.......57
4.4.4 內聚力（cohesion）.......59
4.5 光擴散型感壓膠光學測試 .......60
4.5.1 光擴散型感壓膠光學全透過率量測.......60
4.5.2 可視角度與霧度關係之面板光學量測.......62
4.5.3 中小尺寸面板均勻度光學量測........68
4.6 光擴散型感壓信賴性測試 .......77
4.6.1 80oC耐熱500小時霧度與透過率測試.......77
4.6.2 60oC/90%RH耐濕500小時霧度與透過率測試 .......80
4.6.3 -30 oC耐寒500小時霧度與透過率測試.......83
4.6.4 400W耐光500小時霧度與透過率測試.......86
第五章 結論.......89
參考文獻......90

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