JEBON offers a comprehensive range of LCD’s and LCD modules including TN, HTN, STN, and FSTN types. Enquire about our cost effective (no tooling cost) standard LCD modules, or we can provide custom modules including COG and TAB technologies.
Our product range includes:
Custom design and Standard Liquid Crystal Displays Custom design and Standard Dot Matrix LCD Modules Custom design and Standard Graphic LCD Modules Extended temperature STN displays and Modules Chip on Glass (COG) development and assembly Tape Automatic Bonding (TAB) development and assembly
STN LCD Structure
LCD is made of a cell that contains liquid crystal material sandwiched between two glass plates. Lines and columns of the transparent conductor are configured on the inner surfaces of the cell.
A transparent polarizing film is attached to the top glass plate. Pre-tilted angle is to twist LC for
the direction. LCD is classified by difference in twist angle; TN(90¡Æ) and STN(160¡240¡Æ)
LCD Principle
LCD is a type of device in which electrical & optical properties of LC (Liquid Crystal) substance
in neutral state of liquid and solid-are applied into display; liquid crystals of organic molecules initially have regular structure arrayed like crystals, and the molecule alignment changes by external electric field. LCD is a passive display that doesn't produce its own light but a light modulator which needs external light. It can be classified into Passive Matrix and Active Matrix depending on the driving method.
Passive Matrix
uses the method which makes the Common and Data electrodes to display;
a Common electrode is given columns and a Data electrode is given rows,
and a signal to a cross point is supplied in order. Both TN and STN LCD belong to this method, and STN LCD is used to display data with a lot of information, and TN LCD is used to display simple information such as a
clock and alculator.
Active Matrix
uses a transistor network as a switch to regulate voltages supplied to an individual pixel in a display.
Because pixels are operated individually, there is no crosstalk caused by line interference and in turn the picture can be displayed clearly.
Most of the displays used in monitors and Laptops belong to this matrix display.
Our product range includes:
