Changes of display

Already 2 months have passed since we welcomed the New Year. It is officially Spring, but no flowers are in bloom. It is still cold outside. My smartphone weather forecast application tells me that it will get better in the afternoon. That¡¯s Nice! Weather forecast when I want, Where I want.

Let me talk to you today about ¡°Displays¡±, which I am sure you are familiar with. Imagine driving a car with no speedometer, or using a refrigerator with no thermometer , or a computer with no monitor, and a cell phone with no display. Without this man-to-machine interface device, there is no way to make it work. With the display, you can see and check the status of car, use the cell phone, or computer, and operate the refrigerator very easily. It even gets easier with Touch, whereby you can command the device to perform certain functions with touch.

In fact, displays have a long history. For example, ¡°Book¡± is a kind of display containing data in print on paper. Input process is analogous to ¡°opening the book¡± and output is the ¡°Text¡±.

More complicated the machine, more a display is required.

Development of TV and computer lead to the rapid growth of display panel.
At this time, let¡¯s take a look at a kind of important display panel ; Monitors.

As you know, until recently CRT monitors with convex surfaces were predominantly used in PCs and TVs.
CRT monitors consumed a lot of power, and the convex surface caused image distortions. Many years later LCD (Liquid Crystal Display) monitors replaced the bulky and cumbersome CRTs. As LCD prices have declined, they have become mainstream in most fixed and mobile applications. LCDs may be designed with TN (Twisted Nematic) liquid crystals. These are inexpensive, but with limited color capability, and a narrow viewing angle.

The most advanced LCD monitors use IPS (In-Plane Switching) technology. It gives more detailed color representation and a wide viewing angle. LED backlighting helps lower power consumption while maintaining brightness levels.

Innovations in display technology can now bring 3D images to your TV. Initially, some of the 3D TVs required special glasses. Within a year, ¡®glassless¡¯ 3D TVs (auto-stereoscopic TVs) are in the market.

Displays are evolving so rapidly. How long do you think this evolution will continue? Imagine, what your mobile phone display or computer display will look like in 10 years. Perhaps Holographic?