LCD features of LCD TV, what are the special features of LCD LCD screen?

The first point, the splicing gap is small, as we all know, the stitching of the LCD splicing screen has always been a very important factor affecting the cohesion effect of the entire screen and the display of the picture.

The second point, the brightness of the LCD LCD screen can be reached, brightness is a very important indicator to measure the splicing screen, if the brightness is not enough, it will cause us to see the picture displayed on the screen clearly in the case of ambient light intensity, which can be selected according to our own needs.

The third point, we can see the angle has become larger, with the continuous progress of technology, the angle that can be seen by using LCD LCD splicing screen has reached more than double 178 degrees, achieving the absolute wide viewing angle of the best effect.

Fourth, the selection of different types of panels, it is very important for the type of panel used in the LCD splicing screen, the panel can directly affect the overall performance and life of the LCD splicing products, so when customizing, we must understand clearly, the product performance cover that you need, so as to be more in line with the effect you want to show.

Fifth, a high contrast ratio is an important indicator to measure the display effect of the splicing screen, and a high contrast ratio plays a very important role in supporting the display effect of various stages of color.

LED is the English abbreviation of Light Emitting Diode.

LED applications can be divided into two categories: one is LED single-tube applications, including backlight LEDs, infrared LEDs, etc.; In addition, there is a certain gap between China and the world in the manufacture of LED basic materials, but as far as LED display is concerned, China's design and production technology level is basically synchronized with the world.

LED display is a display device composed of light-emitting diode arrangement. It adopts low-voltage scanning drive, and has the characteristics of low power consumption, long service life, low cost, high brightness, less fault, large viewing angle, and long viewing distance.

The original text of LCD display is liquid crystal display, which is composed of the first letter of each word, and is mostly called LCD flat panel display or liquid crystal display in Chinese. Its working principle is to take advantage of the physical characteristics of liquid crystals: when energized, the arrangement becomes orderly, so that light can easily pass through; When there is no power, the arrangement is chaotic and blocks the passage of light, to put it simply, it is to let the liquid crystal block or let the light penetrate like a floodgate.

The benefits of LCD are: Compared with CRT displays, the advantages of LCD mainly include zero radiation, low power consumption, low heat dissipation, small size, accurate image restoration, sharp character display, etc.

LCD LCD screens have industrial screens, digital screens, monochrome screens and color screens, and the general classification is:

LCD LCD screen is divided according to display technology: dot matrix screen, broken code screen, character screen, TFT color screen display type: positive display, negative display, full transparency, translucent radiation, according to the material

tn htn stn fstn astn sfstn pmva

I remember whether it's a line of urban and rural areas,Or transistors,It's good to have no LEDs, it's point imaging,So it's clearer,You can compare two TVs,LETVX60It uses the most advanced screen。 You can feel the difference by contrasting them.

Positive display: It is white (natural color of LCD screen) bottom plus black numbers and letters display, that is, light background dark characters, contrast.

It is relatively high, and it is easier to see under normal circumstances.

Negative display: It is a black bottom, and the numbers and letters are displayed in white (the natural color of the LCD screen), that is, the dark background and light-colored characters, generally need to add a backlight to achieve the display effect, and it can be seen clearly in the sun and outdoors, and it is mostly used for e-book software. It can be matched with the color of the watch for visual impact.

Good, not easy to reflect, good concealment.

In a fundamental sense, the LCD screen can be called an LCD screen, and the LED screen does not contain liquid crystal substances, so it cannot be called an LED LCD screen, but can only be called an LED screen.

LCD basic knowledge.

A liquid crystal display is a passive display that cannot emit light and can only use the light of the surrounding environment. It displays a pattern or character with very little energy. Low power consumption and miniaturization make LCDs the best way to display.

The liquid crystal material used in liquid crystal display is an organic substance with both liquid and solid properties, and its rod-like structure is generally arranged in parallel in the liquid crystal box, but its arrangement direction can be changed under the action of electric field.

For positive TN-LCDs, the LCD is at the same level when no voltage is applied to the electrode"off"state, the light energy passes through the LCD and appears white; When adding voltage to the electrodes, the LCD is in"on"The long axis of the liquid crystal molecules is arranged along the direction of the electric field, and the light cannot pass through the LCD, and it is in a black state. By selectively applying a voltage to the electrodes, different patterns can be displayed.

Right. Compared with STN-LCD, the liquid crystal has a larger distortion angle, so the contrast ratio is better and the viewing angle is wider. STN-LCD is based on the principle of birefringence for display, its base color is generally yellow-green, and the font is blue, which becomes yellow-green.

Model. When using a purple polarizer.

, the base color will turn gray and become gray. When using a polarizer with a compensating film, the base color will become close to white, and STN becomes a black and white mode, which is FSTN, and the polarization of the above three modes.

If the film is rotated 90°, it will become a blue mold, and the effect will be better.

There are three types of LCD displays: reflective, translucent and translucent. Reflective LCD has a reflective plate added to the bottom polarizer, and it is usually in the home.

Exterior and well-lit office use. The bottom polarizer of the fully transparent LCD is a fully transparent polarizer, which requires continuous use of the backlight, and is generally used in a poor light environment. Translucent LCD is somewhere in between, with a biased bottom.

The light sheet can be partially reflected, and generally has a backlight, and when the light is good, the backlight can be turned off; When the light is poor, you can use the LCD to light up the backlight.

LCD display methods are also divided into positive and negative. Positive LCDs exhibit black on white and display best in reflective and transflective LCDs; Negative LCD presents white characters on a black background, which is generally used for fully transparent LCD, plus backlight, the font is clear and easy to read.

positive type (black on white).

Negative type (white on black).

LCD relies on energized liquid crystals to change direction and refract light to produce a picture. LED is the picture produced by the change of the diode light source. Comparatively speaking. The viewing angle of LEDs is greater than that of LCD. And it's more energy-efficient than LCD.

LED TVs, the current LED TVs are not LED TVs in the real sense of the word......It's just that the backlight of LCD has been changed from fluorescent lamp to LED, and LED as a screen is currently very large, used for commercial advertising, because its volume is not very small.

The LCD body is a little thicker than the LED, and the lamp will turn yellow and aging after a long time, and the lamp life is directly related to frequent start-up, and the advantage is that it is cost-effective! LED light sensitivity is better than LCD, long service life, with self-healing function, ultra-thin body, ** much more expensive than LCD!

LCD: Liquid crystal display.

LED: Light Emitting Diode Display.

LCD is more energy-efficient and clearer than LED display.

LEDs are more environmentally friendly than LCDs, the light is more uniform and brighter, and they are more suitable for large-size displays.

The color gamut covered by LCD TVs is small (only 65% to 75% of the standard ones), and it is difficult to realistically and perfectly show natural scenes such as grasslands, seas, and maple forests.

The advantages of LED LCD TV are ultra-thin, environmentally friendly and energy-saving, long life, and wide color gamut.

The disadvantage is that it is expensive and does not dissipate heat well.

LEDs are light-emitting diodes, and LCDs are liquid crystal displays.

The current LED TV is an LCD TV with LED backlight,Ordinary LCD TV is CCFL cold fluorescent tube backlight,The difference is who is betterLED or CCFL backlight。

In terms of color performance and brightness, the two are about the same.

In fact, the recent breakthrough in LED technology has only caught up with the CCFL).

In terms of luminous efficiency, LEDs are more efficient and may consume less power in a certain size.

In terms of life, the life of a single LED is longer than that of CCFL, but the LED for backlight is a group of many LEDs, and as long as one of them is broken, the display effect will be affected, and the actual performance is also tied with CCFL estimates.