臺灣博碩士論文加值系統

在鍵盤上文字與背景色彩的研究中，多以明度差來測試視覺辨識度，然而市面販售的電腦鍵盤已有多樣的色彩配置，對於專業人員而言，依賴視覺來辨識鍵盤上顯示的字體程度較低，然而對於相當依賴鍵盤的學童而言，色彩的配置及文字字型的選定對於視覺辨識度高低，則會大大影響作業的效率及電腦學習的意願。有鑑於此，藉著實驗，以計測出適合學齡兒童專用電腦鍵盤的文字色彩及背景色彩為本研究的中心。未來在設計學齡兒童電腦鍵盤時，將會有更符合兒童認知性及操作性的良好輸入工具。
本研究共分二項實驗進行，包含第一部分的實體鍵盤及第二部分的螢幕觸碰式鍵盤的測試與評估。第一部份實驗共有三階段,第一階段進行實體鍵盤各文字字型的視覺績效測試以及滿意度調查，第二階段是英文字母／注音符號／背景的色彩搭配做視覺績效的測試，以及最後進行視覺疲勞測定儀的檢測。在第二項實驗部分,共有兩階段,第一階段針對觸碰式螢幕鍵盤之文字大小及字型，進行視覺績效測試以及滿意度調查，第二階段則是英文字母及中文注音與按鍵背景明度差的是視覺績效測試。
研究結果顯示，在實體鍵盤部分:字體對操昨時間影響方面，鍵盤字體對操作時間有顯著性，以圓黑體為最佳，操作時間最短，視覺績效最差的為宋體，其操作時間最長。在主觀滿意度方面，不同字體與大小間對主觀滿意度的影響有顯著性，以楷體為最佳。在鍵面、英文字母及注音符號之間的色彩上，除了男生組英文字母與注音符號間的色差與明度差，對操作時間，較無顯著性影響外，其他無論是鍵面與文字間的色差或明度差，或英文字母與注音符號間的色差與明度差，均會對操作時間有所影響，色差與明度差值越大，操作時間相對縮短。最後在視覺疲勞度測試方面，所製作的模型樣本與兒童電腦教室的鍵盤測試結果，整體而言，男女兩組均以現今兒童電腦教室所使用的鍵盤，所造成的視覺疲勞度較模型樣本為高。
在觸碰式螢幕鍵盤部分:字體對操昨時間影響方面，鍵盤字體對操作時間有顯著性，以圓黑體為最佳，操作時間最短，視覺績效最差的為宋體，其操作時間最長。在主觀滿意度方面，不同字體與大小間對主觀滿意度的影響有顯著性，以楷體為最佳，實驗結果與實體鍵盤相同。而在螢幕鍵盤鍵面與文字間的實驗結果中，操作時間與滿意度有顯著差異，灰底白字比白底黑字滿意度高，平均操作時間也短。

The aim of this study is to examine the effects of computer input device the character and color on the visual performance, visual fatigue and subjective satisfaction of the novice computer users among schoolchildren. This study includes two experiments; experiment I investigates the effect of physical keyboard on visual performance and satisfaction; experiment II investigates the effect of screen keyboard on visual performance.
From two experiments, some conclusions have been made as follows: in the effect of Chinese character on typing time, the character had a significant effect on typing time. The best Chinese character is Bold-black type, which had the shortest typing time; the worst one is Sung type, which had the longest typing time. The legends had a significant effect on satisfaction. The best Chinese character for satisfaction is Regular script type. In the effect of color collocation on visual performance, no matter the color difference or lightness difference between English letters Chinese characters and keys (backgrounds), that had significant effects on visual performance. When the color difference and lightness difference became greater, the typing time became shorter. In visual fatigue, differences in models had significant effects. Those subjects that used the samples that were picked from used keyboards in the computer classroom of an elementary school were found to have higher average critical fusion frequency than those who used new models.
In the effect of screen keyboards Chinese character on typing time, the screen keyboards had a significant effect on typing time. The best Chinese character is Bold-black type, which had the shortest typing time; the worst one is Sung type, which had the longest typing time. The screen keyboards had a significant effect on satisfaction. The best Chinese character for satisfaction is Regular script type. In the effect of lightness collocation on visual performance, lightness difference between Chinese characters and keys (backgrounds) that had significant effects on visual performance and subjective satisfaction. The screen keyboard designed in white word and black background had the shortest typing time and highest satisfaction.

摘要.....................................................................................................................................i
ABSTRACT ……………………………………………………………………………iii
ACKNOWLEDGEMENTS………………………………………………………….…iv
CONTENTS……………………………………………………………………………...v
LIST OF TABLES……………………………………………………………..………viii
LIST OF FIGURES……………………………………………………………………...x
CHAPTER 1 INTRODUCTION ....................................................................................... 1
1.1 Motivation and background .................................................................................... 1
1.2 Research purpose ..................................................................................................... 2
1.3 Organization of the dissertation .............................................................................. 3
CHAPTER 2 Literature Review ........................................................................................ 5
2.1 usability engineering ............................................................................................... 5
2.1.1 Measures of usability ................................................................................... 5
2.1.2 Logging method ........................................................................................... 6
2.1.3 Questionnaire method .................................................................................. 7
2.2 CIE Color Space ...................................................................................................... 8
2.2.1 Perceptual differences ................................................................................ 10
2.2.2 RGB and CMYK conversions .................................................................... 10
2.2.3 Range of coordinates .................................................................................. 10
2.2.4 CIELAB-CIEXYZ conversions ................................................................. 10
2.2.5 Hunter Lab .................................................................................................. 12
2.2.6 Approximate formulas for Ka and Kb ......................................................... 13
2.2.7 As an Adams chromatic valence space ...................................................... 13
2.2.8 Color difference .......................................................................................... 14
2.3 Chinese input methods for computers ................................................................... 14
2.3.1 Phonetic-based ........................................................................................... 15
2.3.2 Shape-based ................................................................................................ 15
2.3.3 Zhuyin (fuhao) input method ..................................................................... 17
2.3.4 Etymology .................................................................................................. 18
vi
2.3.5 Stroke order ................................................................................................ 20
CHAPTER 3 Experimental Method…………………………………………………...21
3.1 Experiment I: Operating performance and satisfaction of physical keyboard ….21
3.1.1 Step1: Chinese character and size on visual performance and satisfaction of physical keyboard……………………..........................................21
3.1.2 Step2: Visual performance of color difference and lightness difference between English letters, Chinese characters and backgrounds of physical keyboard ............................................................................ 23
3.1.3 Step3: Experiment of visual fatigue of physical keyboard ........................ 25
3.2 Experiment II: Operating performance and satisfaction of screen keyboard ........ 27
3.2.1 Step1: Chinese character and size on visual performance and satisfaction
of screen keyboard .......................................................................... 27
3.2.2 Step2: Lightness combination on visual performance and satisfaction of screen keyboard ............................................................................... 29
CHAPTER 4 Results and Discussion .............................................................................. 30
4.1 Results of Experiment I:Operating performance and satisfaction of physical keyboard ............................................................................................... 30
4.1.1 Results of Experiment I Step1: Chinese character and size on visual performance and satisfaction of physical keyboard ........................ 30
4.1.2 Results of Experiment I Step2: Visual performance of color difference and lightness difference between English letters, Chinese characters and backgrounds of physical keyboard ...................... 32
4.1.3 Results of Experiment I Step3: Visual fatigue of physical keyboard ........ 36
4.2 Results of Experiment II: Operating performance and satisfaction of screen keyboard.............................................................................................................. 38
4.2.1 Results of Experiment II Step1: Chinese character and size on visual performance and satisfactionof screen keyboard.................................................38
4.2.2 Results of Experiment II Step2: Lightness combination on visual performance and satisfaction of screen keyboard ............................................... 40
CHAPTER 5 Conclusion .................................................................................................. 41
5.1 Physical keyboard………………………………………………………..............41
5.1.1 Chinese character and size on visual performance and satisfaction…...….41
5.1.2 The questionnaire of schoolchildren prefer color……...............................41
vii
5.1.3 Visual performance of color difference and lightness difference between English letters, Chinese characters and background……………………42
5.2 Tablet computer screen keyboard……………………………………………….42
5.2.1 Chinese character and size on visual performance and satisfaction……..42
5.2.1 Lightness combination on visual performance and satisfaction………...42
Reference………………………………………………………………………………...43
Appendix ………………………………………………………………………………..50

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http://en.wikipedia.org/wiki/Zh%C3%B9y%C4%ABn_f%C3%BAh%C3%A0o
http://en.wikipedia.org/wiki/Chinese_input_methods_for_computers