【 Weak current College 】 DLP screen wall terminals display common pitfalls and solutions-Power By 【 China power house network 】

DLP large screen display wall system in power, the public security command center, traffic monitoring and management, industrial production scheduling, monitoring, control, and other fields in the control room has been widely used, its function is to set display from computer, video and network, and so many different signals to meet user large displays comprehensive information viewing needs.

The DLP big-screen display system, the screen is the focus of the entire control system, completed on light scattering function, so that the displayed information beiguanchazhe eyes. Select inappropriate screen may damage the image of the Visual effects, select the appropriate screen you can significantly improve the image quality of cast as, and in all ambient light conditions display high-resolution, high-contrast images. Large screen display wall screen throughout the unit's share of costs is also relatively high, so the image quality of the screen and optical properties should have a rational understanding. Market competition, making more and more manufacturers start making screen. However, the screen of the production process to the process level and production environment (temperature and humidity) requirements more stringent, because damage to the screen, it will seriously affect the Visual effect of the screen.

In the large screen Tile wall system, the screen easy to damage caused by the following areas:

1. the screen surfaces or innermost crushed, black point, engineering installation of scratches.

Workaround: DLP screen surface glass, usually does not scratch, scratch the glass, but in the inspection scope. Black point can be controlled in qualified range.

2. use a special bonding agent in the production process of the formation of corrosion damage.
This museum is damaged it is easier to appear at the screen edge around the image signal is 100% of all white can be seen.

Resolution: special adhesives if is liquid in the production process easy formation of corrosion damage the screen. We are using solid state bonding agent, corrosion of the screen does not exist.

3. screen production process is not perfect and four neighboring screens leaked phenomenon: concrete expression to the image signal is 100% of all white, the screen can be seen around four relatively bright highlights or a section of a bright line. On the Visual effects have a greater impact.

Workaround: this leaked phenomenon for glass composite curtain is a process, we are actively taking measures, improve the process, from the highest level to address this phenomenon.

Screen crushed, black point, engineering installation of scratching check regional reference as follows: into A zone b, and C in three parts, 67-inch screen and Fresnel lens equivalent to 50 inches, the 60-inch scale conversion can know: (you can refer to screen manufacturers factory standard)

Observation of the distance you can press twice the height of the screen, and then set the projector checks the signal to 100% of all white State checks.

DLP large screen display wall screen common pitfalls and solutions

A district transparent crushed point > 8.0mm2 points one should not point < 0.8mm2 appears to not consider
All other points A zone = 1B zone = 4C area = regardless of
Black points or debris: > 1.0mm2 points one should not point < 0.5mm2 appears to not consider
All other points A zone = 1B zone = 4C area = regardless of

Installation of the production process from scratches and damage, the adhesive should be within the range of the check is not visible. These are the Unit screen damage inspection process, both for screen of several major parameters can also be measured. (Such as half gain perspective, and the entire screen brightness, uniformity, etc.)

4. large-screen flat tile wall, because each manufacturer screen types, the level of the production process, so in the big-screen Tile wall system flat effect is different. Screen excessive deformation will affect large screen spell wall overall efficacy and quality of the image. So there should be a specific acceptable indicators.

Solution: the screen if the outer is resin curtain and prone to deformation affects large screen spell wall of overall effectiveness and quality of the image, because we are using glass compound this problem does not exist.

5. big screen Tile Wall Tile joints in effect, the different production installation process, you will make the entire screen Tile Wall Tile joints effect has a very big difference. Also produces physical slot and optical slot. Whether it is physical or slot, Optics (optical slot is due to the structure of the production process of the screen is not perfect-generated) as long as the light does not reach the edges and the black border, is the actual tile wall tile joints. Ideal slot should be fine and even a black line. At the same time slot in does not appear, because the process is not perfect but the resulting screen leaked. Slot is too large, the edges of the image there will be a loss of information. For big-screen Tile Wall Visual impact are large.

Solution: due to the use of screen mostly resin screen, from the ambient influence is very big, the ambient temperature control, caused by the slot will reduce black lines.

6. on the projector, do not explain here;

7. now on the big screen Tile wall system layers will be higher, and the use of screen type useful glass, resin in two categories. Various manufacturers with production technology, as well as to screen material itself features (free), so the security of the screen (if the drop?) and durability is also the problem should not be overlooked.

Workaround: it is for these reasons, from security to consider in making screen set aside a certain amount of space to the screen when using thermal expansion, it appears that the black line, but the security and durability.

Big screen Tile wall system screen can be said that the entire lineCommission's "face", and how to pack a good selection of "face". Hope this big-screen spell wall screen images common defects, to enable us to screen can have some rational understanding. At the same time, for big-screen dealers and end use large-screen projection of users to use more perfect products can help.