The difference between LED and LCD
Author:huxiaolin Time:2021-06-09 17:55 Browse(40)
I just bought a TV some time ago. I feel that the salesperson is really exaggerating. Let's talk about my feelings. There are probably three kinds of TV sets nowadays, led, LCD and plasma. Plasma, Panasonic do the best, but the power consumption is also the most serious, the feeling looks and LCD is not very different. Compared with LED, LCD is thicker and heavier, and consumes more power, but its effect is softer and glossy. If LED is very power-saving, the lines are hard and cold, the volume is the smallest, but the price is the most expensive. The last thing I bought was Hisense's 46k11p. All kinds of discounts converted to 6200 yuan, the price of LED/
I just bought a TV some time ago, and I feel that the salesperson is really talking about the hype. Let's talk about my feelings.
there are about three kinds of TV sets now.

The difference between LED and LCD

LED, LCD, plasma.
if plasma.
Panasonic is the best, but it also consumes the most power. It doesn't look very different from LCD.
then LCD is thicker and heavier than led, It consumes a lot of power, but its effect is softer and its luster is enough.
If LED is very energy-saving.
the line is hard and cold, the volume is the smallest, but the price is the most expensive.
I bought Hisense's 46k11p last.
before 6200 yuan of various discounts, LED is a cost-effective one.
my power consumption of Hisense is 100W.
I bought a tool to measure power consumption, Plug in the plug-in board and then plug in the TV plug to calculate the real-time power consumption, The actual power consumption is about 80W.
if the LCD is 46 inches, the power consumption is 300W.
if you usually watch TV, the power consumption is 250W.
then the picture definition is acceptable.
I can also accept the brightness and luster.
I start from the perspective of power consumption.
I hope my experience can give you a reference.
LED is the abbreviation of light emitting diode.
LED is the abbreviation of LEDLED applications can be divided into two categories: one is led single tube applications.
including backlight LED, infrared LED and so on; At present, there is still a certain gap between China and the world in the manufacturing of LED basic materials, but as far as LED display is concerned, China's design and production technology level is basically in line with the international levelLED display screen is a display device composed of LED arrays.
it adopts low voltage scanning drive.
it has the following characteristics: low power consumption, long service life, low cost, high brightness, less faults, large viewing angle, long viewing distance, etc.
it has the advantages of low power consumption, long service life, low cost, high brightness, less faults, long viewing distance, etcThe original text of LCD is liquid crystal display.
it is composed of the first letter of each word, which is often called "liquid crystal flat panel display" or "liquid crystal display" in Chinese.
its working principle is to make use of the physical characteristics of liquid crystal: the arrangement becomes orderly when power is on.
it makes light easy to pass through; The advantages of LCD are: compared with CRT display.
the advantages of LCD mainly include zero radiation, low power consumption, small heat dissipation, small volume, accurate image restoration, sharp character display, etc.
choose and buy LCD.
there are several basic indicators: high brightness: the higher the brightness value, the higher the brightness value, The brightness unit is CD / m2.
that is, candlelight per square meter.
the brightness value of low-level LCD is as low as 150 CD / m2, while that of high-level display is as high as 250 CD / m2.
high contrast: the higher the contrast is, the brighter the color is.
on the contrary.
the lower the contrast is, the poorer the color is, The image will also become flat.
the contrast value is quite different.
there are as low as 100:1, and as high as 600:1, or even higher.
wide visual range: in short,
refers to the clear range that can be seen in front of the screenThe larger the visual range is.
naturally, it is easier to see; The smaller the value is, the clearer the picture will be if the viewer changes the viewing position a little.
the algorithm of visual range is from the middle of the picture.
the clear angle range of the picture is from the top, bottom, left and right directions.
the larger the value is.
the wider the range is naturally, but the range of the four directions is not necessarily symmetrical.
some manufacturers will add the angle values on both sides and mark them as horizontal: 160 °; Vertical: 160 °; It may also be labeled left / right separately: ± eighty °; Up / down: ± eighty °. signal response is very important for animation and mouse movement.
generally speaking, this phenomenon only occurs on LCD, The faster the signal response time is, the more convenient the task processing is.
one of the methods of observation is to move the mouse quickly (that is, the mouse keeps moving down to indicate to the system.
the system keeps responding to the signal to the display). On a low-level LCD display, the cursor will disappear when it moves quickly until the mouse is positioned, No longer move after a short period of time, will appear again; When moving at normal speed, you can also see the trace of mouse movement clearly.
and the response time of ve500's super express signal is as fast as 16ms.
it allows the cursor to move without time difference, and the moving process is clear and easy to see, which does not bring work trouble.
in this way, the cursor can move without time difference
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