平板電腦觸控筆按鍵之設計與書寫成效之研究

The Design of the Button on the Stylus and Its Effects on the Writing Performance for Tablet PC

許晉嘉(Chin-Chia Hsu)

指導教授 ： 梁成一

大同大學/設計學院/工業設計學系所/碩士(2005年)

摘要

平板電腦的輸入方式是筆式輸入，其輸入工具為觸控筆。觸控筆與其它手寫筆的最大不同就是多了一個觸控筆按鍵，而這個相異之處是否會影響書寫成效即為本研究要探討的問題，而藉由觸控筆按鍵之探討與設計以縮短書寫編輯轉換時間，以提昇書寫成效是研究的目的。
首先針對平板電腦的螢幕旋轉特性、進行實驗，結果顯示螢幕無論是直立或橫置的顯示方式，並不會影響書寫成效；使用經驗也不會有影響。接著由 20 位受測者將平板電腦觸控筆按鍵的各構成因素，依其對按壓成效之影響程度做排序，此主觀評量經由 Friedman 檢定分析後，發現按鍵位置與按鍵大小為最影響使用者按壓按鍵的二個因素。
再以性別、握筆姿勢、握筆象限、按壓手指為自變數，以書寫時間、編輯時間、書寫編輯轉換時間、錯誤率、按壓面積、按壓中心為因變數，以比較紙上手寫與平板電腦手寫輸入的差異，並以 t 檢定、ANOVA 分析，得到了性別為最主要的影響因素。根據實驗所得之男性、女性及綜合之按壓位置與大小的數據，設計出三種不同之按鍵，再做驗證，結果顯示觸控筆搭配這三組改良的按鍵當中，都能比搭配原來按鍵的書寫成效好，其中特別是以男性按壓面積為考量的觸控筆按鍵為最適合進行按壓的按鍵形狀，可縮短書寫編輯轉換的時間差，有效地達到提昇書寫成效之目的，亦即研究最終的觸控筆按鍵之尺寸為：按鍵下緣距離筆尖 38.54mm、按鍵長 13.8mm、按鍵寬 7.8mm，按鍵中心較原來的位置更靠近食指握持 0.2mm，按鍵形狀為非長方形、接近橢圓形的形狀，此結果提供更佳的按壓按鍵操作，並達到提昇書寫成效，並可為未來平板電腦觸控筆設計之參考。

關鍵字

按鍵 ； 性別 ； 平板電腦 ； 握筆姿勢 ； 觸控筆 ； 書寫成效

並列摘要

In many computer input devices, pen-based input is the trend and the more convenient way of input, it is an input method that does not need learning, the text input is intuitive in this input method. The major difference between stylus of Tablet PC and other handwriting pen is that it has an additional button, however, does this difference affect the handwriting performance is the issue to be investigated in this study, and the main purpose of this study is to shorten the handwriting conversion time through the investigation and design of stylus button and to enhance the handwriting performance.
First, experiment on the rotating characteristic of the Tablet PC screen, the results show that both vertical and horizontal placement of screen will not affect the handwriting performance; the user experience will not affect the handwriting performance either. Then 20 tested persons will list all the composing factors of the stylus button of the Tablet PC and sort these factors according to their effects on the pressing performance, these subjective evaluations will then be analyzed and tested by Friedman, we find that button location and size are the two most important factors that affect the users on button pressing.
Use further the gender, stylus grasping posture, stylus grasping quadrant and pressing finger as the independent variables, use handwriting time, editing time, handwriting and editing conversion time, error rate, pressing surface area and pressing center are the dependent variables. Paper handwriting and Tablet PC handwriting input will be compared, besides, t test and ANOVA analysis will be used to obtain the most important factors affecting the gender. According to the data obtained form male, female and miscellaneous pressing location and size, we design 3 different buttons for verifications. The results show that when stylus is used together with these three sets of improved buttons can all show better handwriting performance when they are used together with original buttons. Among these buttons, the stylus button that takes into account the male pressing area is the button shape that is most suitable for button pressing, it not only effectively reduce the button pressing time, but also reduce the time difference of button transfer, the handwriting performance can thus be greatly enhanced.
The final stylus button dimension in this study is: the lower edge of the button is about 38.54 mm to the stylus tip, its length is 13.8 mm, width 7.8 mm, the button center deviates has more close to the index finger by 0.2 mm, the button shape is non-rectangular, it approaches oval shape, the result can provide better button pressing operation and enhance handwriting performance, it can also be used as a reference for the future design of the stylus of Tablet PC.

並列關鍵字

button ； gender ； handwriting performance ； stylus ； stylus-grasping posture ； Tablet PC

參考文獻

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