Handwritten drawing boards, also known as tablet, tablet or drawing board, hand-painted board, and so on. It is an electronic input device of a computer, usually consisting of a pressure sensitive pen and a board. It is similar to a tablet, such as a non-conventional input product, and is intended for a specific user group that has certain drawing and hand drawing and drawing requirements.
Drawing board / tablet working principle:
The principle of handwritten drawing board is simply that when the tablet is used, the board is equivalent to the positioner, and the pressure sensitive pen is equivalent to the mouse and pressure sensor used in our usual computer; the pressure of the human hand is different, when the pen touch device is pressed, The back end of the nib has a spring-like sensing device that transmits the specific data to the board while receiving the force. The board responds to the specific position of the pen drawing and outputs the transmitted data to the computer display.
From a technical perspective, the tablet is mainly divided into a primary resistance pressure plate, a capacitor plate, and the latest electromagnetic pressure plate. According to the order of time, the resistance board is the oldest, and the capacitor board is sandwiched between the resistance board and the electromagnetic board. Although the technology is not too old, it is basically eliminated, and the electromagnetic board is the most mature technology at present. As can be seen from its sales, it has basically been recognized by the market.
Resistor board: It is called the most original type of tablet. The principle is to use two layers of resistive film on the surface of the tablet. The upper layer of resistive film can be slightly deformed, and the lower layer is a fixed resistive film. The stylus touches the upper resistive film and deforms it, and then contacts the lower resistive film to determine the position of the stylus. This kind of tablet works simple and has low cost. However, since the tablet should be correctly judged by the deformation of the sensing film, the user must use a large force when using it, so that the user feels tired and uses the life of the tablet. It also had a big impact, so it was quickly eliminated.
Capacitor plate: A capacitive product used to replace the resistor board. However, the base and working principle are basically the same as those of the resistive pressure plate. The main purpose is to position the stylus when the pressure is applied to the substrate by the stylus. Therefore, it is not very convenient to use, and the product has a short life span, and the written strokes are not changed in thickness, so it is not recognized by the market.
Electromagnetic board: This is the most advanced and popular technology. The surface of this type of tablet has a circuit board. When the circuit is energized, it will generate a certain range of magnetic field above the tablet. At the same time, the pen tip of the stylus also has a Corresponding magnetic field, due to the non-contact of electromagnetic wave conduction, so that even if the pen tip does not touch the tablet, it can be positioned by the mutual induction of the magnetic field. When the pen tip touches the surface of the tablet, the software recognition is automatically performed. Achieve the effect of handwriting input.
What do you need to pay attention to when buying a tablet?
The beginner of painting, it is recommended to buy a domestic friend base, affordable and simple and practical, it is easy to get started with the basic functions. Other brands such as Yingtuo, WACOM, the price of thousands of dollars, not very practical and expensive, is not very useful for beginners, the pressure is doubled every two years, the technology has been improved, eliminated Also very fast.
Also recommended is the RAINBOW brand, because it looks very simple and generous, a little shortcoming is that there is no shortcut button, the hand has to stretch over the keyboard.
Painting board / tablet price reference:
1, extraordinary series (price is about ¥1500)
This series is aimed at the majority of CG enthusiasts, students for art majors, etc. It has most of the functions of CG creation, and it can draw a variety of different styles of works, is the main series of WACOM company.
2, shadow extension series (price range from ¥1000 to ¥5000)
The series is aimed at experienced CG users and is aimed at business users. This product not only supports the top level of 1024 pressure, but also supports a number of advanced features such as tilt angle sensing, and a variety of professional level accessories can be selected (such as professional airbrush, 6D art pen, etc.) It is the technical crystallization that WACOM has accumulated for decades, and has made many designs and improvements for professionals to improve their creative efficiency and enrich their work.
3, LCD digital screen series (price range is 10000 ~ 38000)
This series of products is the perfect combination of digital display and LCD display. It is widely used in OA office, teaching demonstration, film editing, medical, business center and other fields.
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