Do you want to know the whole production process of monochrome LCDs?

In this article, we are going to explain the complete steps for the production of monochrome LCDs.

What is a Liquid Crystal Display?

Liquid crystal displays are commonly known as LCD, consist of liquid crystals that are activated by electric current, and they are used to display lines of alpha-numeric information (one or more lines) in a variety of devices, for example, fax machines, answering machines call counters, laptop computer screens, scientific instruments, portable compact disc players, clocks, and so forth. The basis of LCD technology is the liquid crystal, a substance made of complicated molecules. 

LCD uses a liquid crystal to produce a visible image. Liquid crystal displays are super-thin technology display screens that are generally used in laptop computer screens, TVs, cell phones, and portable video games. Liquid crystal displays (LCDs) have become the dominant technology in televisions and monitors in our homes and offices.

In an LCD, an electric current is used to switch segments of liquid crystals from a transparent phase to a cloudy phase, each segment forming part of a number or letter. The segments can also be in the shape of tiny dots or pixels, and they can be arranged in rows and columns. They are turned on and off individually to either block or allow polarized light to pass through. When the light is blocked, a dark spot is created on the reflecting screen.

Simple facts that should be considered while making an LCD:

• The basic structure of the LCD should be controlled by changing the applied current.

• We must use polarized light.

• The liquid crystal should be able to control both of the operations to transmit or is also able to change the polarized light.

Production Processes Of LCD

Here we have described Raw materials and all steps of production of LCD with images and details for your better understanding.

Raw materials used in LCD manufacturing 

The raw materials used in LCD manufacturing refer to the raw materials retained in the product after LCD production, mainly including:

• ITO (indium tin oxide) glass, 

• liquid crystal, 

• polarizer, 

• PI liquid, 

• silkscreen glue (printing frame glue, conductive glue), 

• sealing glue, 

• conductive gold ball, 

• intermediate powder, etc. 

Generally speaking, the three main raw materials of LCD are:

• liquid crystal, 

• ITO glass 

• polarizer. 

The auxiliary materials for LCD manufacturing refer to the raw materials used in the production process but not in the final product, such as: 

• photoresist and thinner, 

• NMP, 

• PI thinner, 

• BC liquid, 

• SiO2 thinner, 

• abrasive cloth, 

• isopropanol, 

• ethanol, 

• Acetone, 

• cleaning agent, 

• acid, alkali, etc.