端口 & 界面
| DVI端口 |
Y |
| 音频（左、右声道）输出 |
1 |
| USB端口 |
N |
| RS - 232接口 |
Y |
| HDMI端口数量 |
1 |
| DisplayPort 数量 |
1 |
| DVI-D接口数量 |
2 |
技术细节
| RJ-45输入端口 |
1 |
| RJ-45输出端口 |
1 |
| 遥控器电池 |
2 x AAA |
| DVI输入端口 |
1 |
| 环境光传感器 |
Y |
| 纵向模式 |
Y |
| 串口类型 |
RS-232 |
| LED背光类型 |
Direct-LED |
设计
| 边框宽度（顶部） |
5.9 mm |
| 边框宽度（底部） |
5.9 mm |
性能
| 面板寿命 |
50000 h |
| 集成电视调谐器 |
N |
| 屏幕显示 |
Y |
另外
| 以太网路(RJ-45)连接接口数量 |
1 |
| 以太网连接器 |
Y |
41.92'' IPS LCD, 1920 x 1080 FHD, Direct-LED, 2500 nit, 6500 K, 3000:1, 8 bit, 9 ms, 178°/178°, 50000 h, 100 - 240 V, 50 - 60 Hz, 180 W, 945.8 x 539.8 x 87.4 mm, VESA 400 x 200 mm, RS-232, DVI-D, RJ-45, OSD
The DS421LT4 is a 42-inch professional ultra-high brightness LCD. With a maximum brightness rating of 2,500 nits, this display features a local dimming LED back light for incredible, high contrast picture quality and low power consumption. The DS421LT4 features an intelligent thermal management system for ultra-quiet 24/7 operation.
LED Backlit with Local Dimming
LED backlighting is both more energy efficient and provides a much brighter image than traditional CCFL backlights. Due to the compact nature of LEDs, displays are also typically thinner. The DS421LT4 utilizes a direct LED backlighting system which is not only more energy efficient than traditional CCFL backlights, it is also considerably brighter. DynaScan has applied its LED expertise to create a collection of ultra-high brightness LCDs which can easily be viewed in direct sunlight such as storefront windows or outdoor enclosures. The display features a local dimming LED backlight technique for a remarkably high contrast picture. With direct local dimming, darker areas of an image receive less backlighting than lighter areas, as opposed to CCFL and edge-lit LED backlights which illuminate an entire screen at all times causing blacks and dark areas to appear washed out.
Color Temperature and Quality
Ensuring the color and brightness of each screen in a tiled matrix matches can be time-consuming and requires additional calibration hardware. Each screen is individually color calibrated to the D65 (6500K) CIE color standard. Not only does this produce a true, natural white, the color of all screens will be uniform.
Auto Brightness Control
Different external lighting conditions require different brightness levels. An onboard light sensor measures the ambient light in the area and automatically adjusts the image accordingly.
Intelligent Thermal Management
Heat generated by the display is radiated away from high-temperature areas while a sensor continuously monitors the internal temperature to protect the system from overheating. This is accomplished with ultra-quiet fans.
Full HD Resolution
With Full HD 1080p resolution, the DS421LT4 produces a super sharp image for easy-to-read text and incredible detail.
