Display Chinese in htmlb Input Field Control

I am using EP 5.0.5 SP5. I have written a native iView which will accept and display Chinese characters. I used a htmlb Input Field control to accept Chinese characters, and use both Input Field control and Text View control to display the Chinese characters (in a jsp page).

However, for the same string with Chinese characters, I can display it in the Text View control, but in the Input Field control, garbage characters will be displayed.

Do anyone know how I can let htmlb Input Field control able to display Chinese characters?