Hey Youring,

Actually its not a visibility issue but is a functionaliyt or you can say feature of OpenERP.

If you want to display product information you may create a button which will return action of current product.

Example:

    return {
        'name': 'Product',
        'view_type': 'form',
        'view_mode': 'form',
        'res_model': 'product.product',
        'type': 'ir.actions.act_window',
        'nodestroy': True,
        'target': 'new',
        'res_id': your_product_id
    }