XYG-LCD Flight Information Display System

1. Comparison of XYG-LCD module product characteristics and LED

If the LED is displayed in a fixed mode for a long time, the performance of the components constituting the lamp tube will deteriorate, and then bright spots will occur. In addition, the LED is displayed by continuous light emission, and the final lamp tube will not be recognized in the non-lighting state. In this case, because LEDs cannot be replaced in units of tubes, the entire assembly must be replaced. To compare with LEDs, the LCD components produced by our company use LCD as the light switch, use multiple LED tubes as the backlight source, and make individual LED tubes not light up, and there will be no unrecognizable phenomenon. (Ordinary LED display uses point-to-point display, a group of led display failures will affect the display effect)

Flight Information Display System

In addition, in terms of using the MTBF value of the failure cycle, the XYG-LCD average time between failures is increased by 3 times (comparison between full-color LED components) compared with general LED components that are laid with LED tubes on the entire surface. Has very high stability. For example, an LED display with 24*24 pixels needs to use 24*24=576 groups of RGB LED drive XYG-LCD uses backlight 16*8=128 groups RGB LED ratio 576: 128 = 4.5:1 and the comprehensive parameters are summed up: 3 times.

2. Comparison with traditional LCD

Traditional LCDs are completely different from the company’s LCD color rendering principles. They use white backlight to develop colors through the color filter light formed in the LCD panel. In addition, it is necessary to decompose each dot matrix into RGB, which will inevitably cause the display aperture ratio to change according to the color. This is also the reason for the low contrast and viewing angle range. In contrast, the LCD produced by our company adopts an achromatic filter method, and there is no color filter in the LCD panel. In terms of the light-emitting principle, the use of long-life, high-efficiency LED tubes, and our company’s unique surface-emitting backlight, control the color through the color rendering of RGB tubes. To

LCD only serves as a shutter, and the display aperture ratio does not depend on the display color, so the product is excellent in display color, high contrast, and wide viewing angle range.

LCD Flight Information Display System

Using chip built-in backlight (for high brightness)

LCD Flight Information Display System

The original backlight uses LEDs configured with three independent colors of RGB, but now the backlight uses LEDs that concentrate the three colors of RGB in one chip. By adopting this technology, we will see such effects:

3.1 Brightness enhancement and bright spot improvement (8C-LCD)
LCD Flight Information Display System

Compared with RGB three-color independent components, using the built-in backlight of the three-color RGB chip, the number of chips that constitute each color is significantly increased, the brightness is also improved, the spacing between the chips is reduced, and the bright spot phenomenon is significantly improved.

3.2 Spot improvement
LCD Flight Information Display System

In the chip composed of three colors of RGB independently, the LEDs of the three colors of R, G, and B form a mixed color, and then color spots occur. But if RGB is mixed in each chip to emit light, this will eliminate color spots.

LCD display

Has a high degree of recognition, eye protection

4.1 Field sequential scanning color display

Relying on the fast response of the liquid crystal panel, a multi-color display in the same area is realized. The color display is realized without using color filters, and the display aperture ratio of each display color is exactly the same, thereby improving the recognizability.

4.2 Wide perspective

Through the development of FTN-type liquid crystal based on wide viewing angle film, the color difference when viewed from various angles is reduced.

4.3 High contrast

Through the development of FTN-type liquid crystal and high-efficiency LED backlight, a very high contrast ratio has been achieved.

4.4 Fast response

Use the most suitable liquid crystal panel material, thus realizing fast response display and making scrolling display possible.

4.5 Suitable for large display devices

Relying on the company’s unique liquid crystal manufacturing technology, the color difference between the modules is small, and it can be used in combination in multi-line and multi-segment equipment.

4.6 Easy to maintain

The specially designed backlight structure makes repair work such as backlight replacement easier.

4.7 Remote dimming function of the backlight

According to the external signal, the color and brightness can be adjusted arbitrarily.

5. Display device design reference specifications

  1. The anti-vibration specification is 1.2G, the anti-vibration degree is 7
  2. Self-diagnosis function (memory, backlight, fan, etc.)
  3. Replace the display function when the module fails
  4. Intelligent temperature control function
  5. Prevent CPU crash function
  6. Lightning protection function
  7. Anti-static function
  8. Prevent momentary power failure
  9. Eliminate AC power noise function
  10. Modular replacement, strong maintainability
LCD Flight Information Display System