Using the LCD with a Personal Computer –continued

3)Control sequence

(1)The command from a personal computer to the LCD monitor will be sent in 400ms.

(2)The LCD monitor will send a return command 400ms* after it has received an encode. If the command isn't received correctly, the LCD monitor will not send the return command.

(3)The personal computer checks the command and confirms if the command which has been sent has been executed or not.

(4)This LCD monitor sends various codes other than return code. When having a control sequence by RS-232C, reject other codes from personal computers side.

*: The sending time of return command may delay depending on the condition (during changing of the input signal, etc.).

[Example] Turn the power ON ( ' ' is for ASCII code)

Sending commands

Status code from LCD

Meaning

from the PC etc.

monitor

 

30 30 21 0D

 

Command for POWER ON

'0' '0' '!' ' '

 

 

 

 

30 30 21 0D

Command received

 

'0' '0' '!' ' '

(Command echo back)

4) Operation commands

The operation commands execute the basic operation setting of this LCD monitor.

It may not operate when changing the signal:

Operation

ASCII

HEX

POWER ON

!

21h

POWER OFF

"

22h

INPUT RGB 1

_r1

5Fh 72h 31h

INPUT RGB 2

_r2

5Fh 72h 32h

INPUT RGB 3

_r3

5Fh 72h 33h

INPUT VIDEO

_v1

5Fh 76h 31h

INPUT DVD/HD

_v2

5Fh 76h 32h

POWER OFF command will not work for 1 minute after the power is turned on.

POWER ON command will not work for 1 minute after the power is turned off.

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NEC LCD4000 manual Using the LCD with a Personal Computer, Input DVD/HD

LCD4000 specifications

The NEC LCD4000 is a high-performance LCD display renowned for its impressive features and cutting-edge technologies that cater to a wide range of professional applications. As a part of NEC's extensive lineup, the LCD4000 stands out due to its advanced specifications that provide exceptional image quality, reliability, and versatility.

One of the standout features of the NEC LCD4000 is its large 40-inch diagonal screen size, which allows for an immersive viewing experience. The display boasts a resolution of 1920 x 1080 pixels, delivering Full HD visuals with remarkable clarity and detail. This makes it ideal for applications such as digital signage, control rooms, and presentations where high-resolution images are crucial.

The LCD4000 employs advanced LCD technology, ensuring vibrant colors and high brightness levels. Capable of realizing up to 700 cd/m², the display is perfect for brightly lit environments, making the content stand out even under direct sunlight. The panel also supports a wide color gamut, facilitating accurate color reproduction that is essential for graphic design, video editing, and other color-critical tasks.

In terms of connectivity, the NEC LCD4000 is equipped with multiple input options, including HDMI, DisplayPort, and VGA. This ensures compatibility with various devices, such as computers, laptops, and media players. Moreover, the display features integrated speakers, providing an all-in-one solution for multimedia presentations without the need for external audio equipment.

The LCD4000 also incorporates advanced features such as a built-in scheduler, allowing users to automate content playback based on time, which is particularly beneficial for retail and advertising applications. Additionally, the display includes a tiltable chassis, enabling users to adjust the angle for optimal viewing in different settings.

Durability is another hallmark of the NEC LCD4000. It is designed for continuous operation, making it suitable for 24/7 usage in demanding environments. The robust construction ensures longevity and minimal downtime, further enhancing the overall value of the product.

Overall, the NEC LCD4000 combines a multitude of features, high-performance technologies, and exceptional characteristics, making it a prime choice for professionals seeking reliable, high-quality display solutions in various industries. Its versatility, coupled with advanced capabilities, ensures that it meets the diverse needs of modern applications.