To create 3D lenticular comics, a lenticular lens and printing output are combined, making various visual effects such as animation and auto-stereoscopic displays possible. 3D lenticular content is created easily by placing a lenticular lens on an image composed especially for viewing in 3D. With lenticular technology, 3D images are created through a lenticular lens that combines two images, one to be viewed by the left eye and the other by the right eye. The type of lenticular lens to be used is selected depending on the purpose, effect, and viewing distance. Although many 3D lenticular comics currently published consist of a single character or a scene, it is expected that normal comics, which include both pictures and text and which have many pages and relatively long stories, will start to be published as 3D lenticular comics. In this case, the readability of the text is essential. Getting a high readability on text containing Chinese characters is especially difficult because the characters are made of complex combinations of thin lines. However, there has been little research reported in this field. Therefore, we conducted experiments and investigated the relationship between readability and the resolution of the lenticular lenses used to create the stereoscopic effect. From the results of these experiments, we propose a guideline for determining the resolution of 3D lenticular comics.