How many kinds of computer keyboards are there? Why is the mechanical keyboard expensive? What are its advantages?

Mechanical keyboard is a kind of keyboard. Structurally, each key of the mechanical keyboard has a separate switch (that is, a switch) to control the closing. This switch is also called "shaft". According to the classification of microswitches, mechanical keyboards can be divided into tea axis, green axis, black axis and red axis. Because each key is composed of an independent micro-motion, it has a strong sense of paragraphs and produces a special feel suitable for game entertainment, so it is usually an expensive high-end game peripheral and an ideal device for programmers.

Advantages: comfort, feel and durability.

Disadvantages: high price.

2. Membrane keyboard

Film keyboards occupy most of the market with the advantages of low cost, simple technology and good feel. Keyboards used in daily life are basically membrane keyboards. The structure of the membrane keyboard is very simple. After the keyboard cover and key cap can be in direct contact, you can see the silicone cap, thin film circuit and circuit board under the keys. The keys of the membrane keyboard can be divided into two structures (X structure): crater and scissors foot. Crater structure is the most commonly used design in keyboard. After the key is inserted into the interface on the keyboard, the bottom directly contacts with the silicone cap, which is affected by the length of the key column and the elasticity of the silicone cap. The buttons of the crater structure adopt the design of high key cap and long key stroke, which can get good feedback, but the disadvantage is that the corresponding fuselage should be made thicker and the stability of the buttons is slightly poor.

Different from the crater structure, the scissors foot structure supports the keys from four corners, so the keys are more stable and stress is uniform. Although the key stroke is shortened accordingly, it feels good and the mute effect is better. The structure of scissor feet has the advantages of low keys, less occupied space and uniform stress. However, due to its complex structure and slightly higher cost, it was only used for notebook computers at first, and only used for desktop keyboards in recent years.

3. Suspended keyboard

There is an obvious gap between each keycap, which looks like it is suspended. In addition, it is also called chocolate keyboard because it looks like chocolate.

1, easy to clean. There are obvious intervals between each keycap, which can easily remove dust;

Under the standard of 92% full-size keyboard, each key is placed on the keyboard base like a chocolate bar floating on the water. Under the condition of ensuring the size of the keyboard, the contact area between the fingers and the keycap is increased, and the keys are more accurate and feel more comfortable. According to the characteristics of ergonomics, a concave hat-shaped key is designed. At the same time, the non-adhesion design also reduces the probability of pressing the wrong key. Compared with the traditional keyboard, both the key stroke and the key distance are obviously improved, which increases the comfort of operation. Simple and clean appearance, 1.902mm optimal key stroke and finger pad bending design, contrasting color label shortcut keys, compact dust-proof function of keys and comfortable hand feel, all these connotations have been integrated, innovated and presented on the chocolate keyboard.

4. Electrostatic capacitive keyboard

Like mechanical keyboard, the main feature of electrostatic capacitance keyboard is the key part. The contactless capacitive switch is used, and the electrostatic capacitor judges whether the key is on or off through the change of capacitance. After the key is pressed, the capacitance in the switch changes, thus realizing the trigger. The whole process can realize tapping operation without closing switches and physical contacts, with less wear and longer service life. More stable, faster, all keys without conflict, extremely sensitive. Because of its inherent advantages based on capacitive induction, it is trustworthy.

5. "Island" keyboard

At present, it is also called floating island keyboard, Zkley keyboard, independent keyboard and so on. , are all of the same type. Island keyboards are generally considered as "extremely simple and modern in design", and we often hear that "these keys are separated, so it is easier to identify and type". However, compared with the traditional keyboard, this kind of keyboard has advantages and disadvantages in terms of "easy typing".

Now, the "island" keyboard has gradually become the mainstream, and this type of keyboard is adopted by most thin and light books. Generally speaking, the "island" keyboard is more suitable for text input.

6. Backlit keyboard

Backlit keyboards originated from ordinary keyboards. Driven by the domestic game market, in order to meet the needs of more and higher players. Keyboard developers began to study multifunctional keyboards. There is a backlit keyboard, which is mainly reflected in the keyboard keys or panel lights. You can clearly see the key letters without turning on the lights at night, indicating that the product is RAJFOO Thunderbird three-color backlit game keyboard.

Use: use at night

Appearance: button light or panel light

Representative brand: RAJFOO Thunder Nighthawk

Function: it can emit light, with adjustable brightness and color change.

Luminous principle: Backlight plate and keycap are laser carved.