How to do DLP projection products, we use this article to tell you

DLP stands for Digital Light Processing, which means digital optical processing technology in Chinese, and the core of DLP is the DMD chip. The DMD chip is a data micromirror device, which realizes the purpose of displaying the projected image by controlling the deflection of light by the microlens. DLP technology is different from what we usually say about large screens, flat panel displays, and LCD liquid crystal displays. It is a front-projection (also called front-projection) system, which is mainly used in micro-projection products on the market today, mainly involving 3D stereo projector , Mobile high-definition video products, portable LED micro-projection applications (such as handheld, pocket), and so on. According to the internal structure of the product, DLP projectors can be divided into single-chip DLP projectors, dual-chip DLP projectors and three-chip DLP projectors.

DLP technology is a light projection display technology independently developed by Texas Instruments (TI), developed by Dr. Larry Hornbeck of Texas Instruments. In the early years, DMD chips were mainly used in ticket printing machines. It was not until 1993 that this optical system with DMD as its core was named DLP.

The working principle of DMD chip:

DMD chip internal structure diagram

Micromirror

In the DMD chip, the micro-mirror is its smallest unit of work, and it is also the key to its performance. The micro-mirror is very small, but still has a complicated mechanical structure different from liquid crystal-each micro-mirror has an independent support frame and is deflected by +/- 12 ° around the hinged inclined axis. For micro-mirrors such as micro-mirrors, traditional mechanical or hydraulic controls are no longer available (even if they can be used, they will be quickly damaged due to mechanical wear), so two electrodes are arranged at the two corners of the micro-mirror. Control and control the deflection to obtain high-precision control capability and unlimited polarization life.

When DMD works, each micro-mirror deflects at +/- 12 °

Micromirror working diagram

The micro-mirror works by reflecting light, and its deflection ability is the key. As shown in the figure above, this is a working diagram of a micro-mirror with a deflection angle of +/- 12 °. When the micro-mirror is turned on (On State, + 12 °), the incident angle of the incident light (light source) reaches 12 °, and the reflection angle also reaches 12 ° (the sum of the two is 24 °). At this time, the maximum light energy is (255,255,255); The micro-mirror is biased off (Off State, -12 °). At this time, the light received by the lens is getting smaller and smaller. When reaching the off state, the brightness is the lowest, which is (0, 0, 0).

Working principle of DMD micro reflector

Texas Instruments DLP Pico projection technology solutions:

As the owner of DLP technology, Texas Instruments launched a DMD chip and corresponding video processing chip for the projection market, a series of DLP product solutions called DLP Pico display technology. Texas Instruments does not manufacture DLP projectors, only DLP Pico chipsets, mainly including two devices: digital micromirror device (DMD) and display controller. Some chipsets also include PMIC / LED drivers. For different applications of DLP micro-projection technology, Texas Instruments launched mainly suitable for mobile portable devices such as smart phones, tablets, high-definition / full-HD Pico projectors, wearable devices such as helmets, headphones and glasses, smart home displays, digital signage, Comprehensive solutions for multiple DLP Pico chipsets such as mobile smart TVs.

Texas Instruments DLP product series for mobile and portable products

Texas Instruments' DLP product family for micro projectors

Texas Instruments DLP product line for wearables

In response to the problem of low color saturation and low brightness of DLP projectors, Texas Instruments also introduced the "Extreme Color" technology, which uses DDR chips to replace the changes in SDR chipsets to achieve enhanced image color processing. Simply put, the ultimate color technology is to use a color wheel that combines three primary colors and three complementary colors, and an appropriate color matching algorithm circuit to achieve the purpose of improving the color display capability of the single-chip DLP projector. In response to this concept of Texas Instruments, the color wheel of the ultimate color technology designed by various DLP projector manufacturers according to different situations is also different, so the image quality will also be quite different.

At present, for the mainstream display technology in the projection market, there are DLP projectors that use traditional LCD liquid crystal display projectors, micro-projection technologies, and 3LCD projection technologies that are said to have good effects on color saturation and contrast. Most non-Japanese projector brands use DLP projection technology, and among Japanese brands including Mitsubishi Electric, Hitachi, Sharp and other brands, DLP projectors also occupy a more important position.

Let's briefly understand some of the common DLP brands in the projector market and the advantages of integrating DLP technology. We have launched targeted DLP series development tools (Texas DLP LightCrafter evaluation module) and DLP finished product integration solutions.

PS5 Battery

1. The battery capacity of this product is 1500mAh;
2. Charging current 560MA, fully charged time: about 3 hours;
3. When the battery pack is in the standby state, close all output ports and enter the sleep state. At this time, the product enters low power consumption to achieve the purpose of energy saving and environmental protection;
4.When the battery pack is in the standby state,the battery level of the built-in battery pack can be detected by the battery detection button. The battery detection indicator LED is detected from low to high, and then the battery indicator will automatically turn off after 30 seconds; or long press the battery detection button for 2 seconds to turn off .
5. In the charging state of the battery pack, the LED power indicator will check from low to high, and then the corresponding power value will be always on, indicating the current power of the battery pack. After the battery pack is fully charged, the four battery indicators will be always on; until it is unplugged the external
adapter ,then the 4 lights will off.
6. Battery pack charging method: first constant current, then constant voltage.
7. When the battery pack is charging the gamepad, the current battery indicator will always be on, and the number of LED lights that are always on represents the remaining battery power in the charging bag, which is convenient for you to know the power in the battery pack.
8. The battery power detection function is set inside the product. When the power of the battery pack continues to decrease as the gamepad is charged, and is below the normal discharge range of the charging bag, the first battery indicator LED flashes.quickly to indicate that it is charging and completely out of power When the time, the LED light goes out, and then the output port is closed to protect the battery inside the charging pack from over-discharge damage.
9. Output short-circuit protection:When the output port is short-circuited, the output voltage will be automatically turned off. To activate again, you need to recharge the battery pack to activate.
Product Name
1500mAh High Capacity Rechargeable Battery for PS5 Controller
weight
100g
Product size
67*37*122MM
Box size
70*41*126MM
Product color
black or OEM
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Gift Box
OEM/ODM
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Advatage
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