The elastic modulus of a capacitive pen nib plays a key role in the writing experience, and there is a close and subtle connection between it and the writing pressure feedback.
First, the elastic modulus determines the degree of deformation of the capacitive pen nib when it is subjected to writing pressure. A pen tip with a higher elastic modulus deforms less under the same pressure. For example, a pen tip made of hard material, such as a ceramic pen tip, has a larger elastic modulus. When the user writes on a capacitive screen, the pen tip will only deform slightly, which makes the writing feel tougher and the pressure feedback to the user is relatively weak, which is suitable for scenes that require precise drawing of lines or writing of small handwriting, such as drawing engineering drawings or writing fine notes. However, this harder pen tip may make some users feel that the writing is not smooth enough and lacks flexibility.
Secondly, a capacitive pen nib with a lower elastic modulus exhibits a greater ability to deform. Some silicone pen tips, for example, have a smaller elastic modulus. Under writing pressure, the pen tip will deform significantly, which can effectively absorb and buffer the writing pressure, giving users a softer and more natural writing experience, as if writing on paper. Moreover, a larger deformation allows the pen tip to better fit the surface of the capacitive screen, improving the accuracy and stability of touch. However, if the elastic modulus is too low, the pen tip may deform excessively, making it difficult to control the thickness of the line when writing, affecting the writing accuracy.
Furthermore, the appropriate elastic modulus can provide just the right writing pressure feedback. When the elastic modulus of the pen tip matches the writing pressure, the user can clearly feel the pressure applied during the writing process, and this pressure can be accurately converted into the thickness and lightness of the handwriting on the capacitive screen. For example, in painting creation, artists can use a pen tip with a suitable elastic modulus to draw lines and patterns with rich layers and expressiveness on the capacitive screen according to their own strength, making the creation process more handy.
The elastic modulus of the capacitive pen nib is closely related to the writing pressure feedback. When designing a capacitive pen nib, it is necessary to comprehensively consider the writing habits and usage scenarios of different users, select or develop materials with a suitable elastic modulus to achieve good writing pressure feedback, improve the overall performance of the capacitive pen in writing, drawing, etc., meet users' various needs for accuracy and comfort in capacitive pen operation, and promote the further development of capacitive pen technology in the field of electronic writing and creation.
