grayscale lcd monitor

signal used in the LCD monitor is a two-level signal that does not contain the blanking signal, while the synchronous signal in the CRT display color TV is a three-level signal containing the blanking signal. This is because the LCD is processing digital signals, the digital signal can only have two levels, high Level 1 and low level 0.In the circuit, the line s

The LCD has the following differences from the CRT monitor. Note One: Refresh frequency The refresh rate is the vertical scan frequency (field frequency) of the monitor, which refers to the number of times the electron gun is scanned across the screen per second, in Hz (Hertz). For CRT monitors, the image displayed on a CRT

In the daily enjoyment of the LCD that unusual high-grade display effect at the same time, do not forget to maintain this extremely important link. Only if the LCD is well maintained, it can serve the customers for a long time without fault. It should be clear that the expensive LCD, as long as the following some simple maintenance steps, you can serve a long tim

What is an LED? The LEDs are the initials of the light-emitting diode Lightemittingdiode. LED applications can be divided into two categories: one is led single tube applications, including backlight led, infra-red LED, and so on, the other is led display, at present, China in the production of LED basic materials and the international still have a certain gap, but in terms of LED display, China's design and production technology is basically synchronized with the international level. The

. The third taboo: hard object attack The liquid crystal is softer and easily damaged (except for the glass screen outside). So when used in peacetime must be careful not to touch the screen with hard objects. The fourth taboo: long time to use Because the LCD is not simple, its pixels are built by a large number of LCD, for a long time continuous use, will make the crystal aging or burn out. Once the

different from CRT monitor. It is a direct pixel one by one corresponding display mode. Working at the best resolution of the LCD display card output analog display signal through processing, converted to a specific address information (the pixel on the screen absolute address) of the display signal, and then into the LCD plate, directly to the display signal to

How to set up a notebook external flat panel monitor? The method steps for setting the details are as follows: The output frequency of the notebook does need to look at the performance of the video card of the notebook, but the more decision of this refresh frequency is the screen itself, the LCD is mainly divided into two kinds of standard 6 hertz, and the other is the Nvidia 3D display which is required

LCD default resolution is generally set how much appropriate? I feel that some widescreen display of the resolution settings are not very good will appear ambiguous phenomenon, but are 16:9 of the proportion. Experts answer Now most of us use liquid crystal display, LCD monitor is not like traditional CRT display, support the resolution adjustment range is very

The liquid crystal display has radiation, but it is very low. The principle of radiation is that the current generates a magnetic field to generate an electric field and then generate a magnetic field, so that the infinite cycle of its source is the current so as long as there is radiation, but there is no ordinary display LCD display high-voltage coil, so the radiation is very low. LCD Bi Chunping

I haven't written a computer repair experience for a long time, think about it, big things, small things are quick to make me not like people, hehe! Well, today in the shop finally idle down to write a monitor repair feeling, just repaired a benqfp71e LCD screen boot black, the failure of BenQ machine has high pressure board part of the common problem, This should be recognized, the fault is mostly turned o

User asked: With more than 40 inches of LCD TV as a computer monitor, will not good for the eyes? With a wireless mouse keyboard, far enough away. Expert answer: About this, I think the main resolution problem, often like this screen size very large resolution is only 1920*1080, in 40-inch display this resolution I think a lot of people can not accept. If just watch video play games I think it does not mat

When the LCD is used for a period of time, there is a lack of color, the display effect is very poor. The main reasons for the lack of color display are the following three kinds: 1. The transistor in the video output circuit is open to a certain level, resulting in a lack of color on the monitor. 2. The video output to the cathode tube, the pin has to be off welding or bad contact. 3. CRT cathod

point of the motherboard voltage, to pay attention to the voltage (4.8V), reset voltage (high or low level, according to different models), MCU voltage. If a power supply short circuit, to carefully find short circuit position, there will be PCB board copper foil may be short circuit (2) Find out whether the contact between the MCU and the motherboard is good (3) Check whether the motherboard chip and MCU work, can be used to measure whether the crystal oscillator vibration (4) Replace the M

New purchase of 17-inch LCD display, the original CRT display replacement, post normal, but into the system desktop when the black screen, restart the problem is still there. This problem occurs because the display's refresh frequency or resolution setting is beyond the LCD's support, as shown in the following solution. 1. Start the computer normally, press "F8" key when starting Windows, choose Safe Mode to start the computer. 2. Right-click on th