Study on optimal parameter setting of word size and word spacing in chinese text of desktop-computer touch screen

Abstract

The basic text attribute in design of the Chinese human-computer interaction digital interface in the desktop-computer touch screen was subject to quantitative test and analysis by virtue of records of the visual focus, the reaction time, the operation accuracy and other data. This paper firstly pointed out that text is one of the basic elements of the human-computer interaction digital interface, and parameter setting of the basic text attribute is closely associated with the customer cognitive efficiency about the interface. Besides, there are few researches on the relationship between the text attribute of the Chinese interface and the reading performance based on the desktop-computer touch screen. Secondly, this paper presented the testing method of the relationship between setting of the basic text attribute and its influence to the cognitive efficiency. Finally, based on the change of the word size and the word spacing in the text attribute, a test plan was designed to collect, sort and analyze tested data, such as the visual focus, the reaction time and the operation accuracy, and further to study the influence of the text attribute to the cognitive efficiency in the typical operating environment. The test result shows that when the sight distance is about 40 cm, the optimal configuration of the word size and the word spacing of the 27-in. (resolution: 2560px*1440px) desktop-computer touch screen is (16px, 2px). The test method and result can provide reference for related design of the digital interface of the desktop-computer touch screen.