This Design Helps In Creating Screen-less Displays

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  • This reference design is based on the DLP Pico 0.47-inch TRP Full-HD 1080p display chipset
  • The design can be implemented in a number of applications requiring digital output displays such as screenless and interactive surface displays

Advanced technologies are growing faster where each technology is renewed with the implementation of a new one. The current trending display technology most commonly used in gadgets such as tablets, smartphones, etc., is the touch-screen display.

Screenless display is an advanced display technology. It can replace the touch screen technology for interactive user experiences. By using this screenless display technology, we can display the images directly on the open space.

The product providing HD resolution

This reference design is based on the DLP Pico 0.47-inch TRP Full-HD 1080p display chipset. It is implemented earlier in the DLP LightCrafter Display 4710 G2 evaluation module (EVM). This enables the use of full HD resolution for projection display applications such as accessory projectors, screenless displays, interactive displays, wearables (including head-mounted displays), signage, industrial and medical displays.

In-built RGB LED module

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The display features a high definition resolution of 1920 x 1080. It achieves a brightness of up to 600 RGB lumens. To produce this amount of brightness, it requires a continuous current of up to 16 amperes. It consists of an RGB LED-illuminated optical module which produces high definition images. The driver board includes DLC3439 controllers and DLPA3005 PMIC/LED drivers. The system board also includes HDMI and USB
connectivity.

DLP LightCrafter Display module consists of three subsystems:

1. Light engine – includes the optics, red, green, blue LEDs and a 1920 x 1080 (1080p) DMD capable of 600 lumens out-of-the-box.

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2. DLP Driver – includes the DLP chipset comprising of DLPC3439 Controller and DLPA3005 PMIC/LED driver with up to 16A LED current.

3. System front end – includes MSP430, ITE HDMI receiver, USB-Serial Bridge Controller and several connectors for external inputs (HDMI, USB, etc).

The main controllers of the system

The DLPC3439 controller provides a convenient, multi-functional interface between system electronics and the DMD. It enables a small and low power high-resolution display.

Contains five buck converters

The DLPA3005 is a power management IC optimized for DLP Pico Projector systems. The
DLPA3005 supports LED projectors for current consumption of up to 16 A per LED. This function is combined using an efficient buck controller. Additionally, the drivers control the RGB switches and support the sequencing of R, G, and B LEDs. The DLPA3005 contains five buck converters. Two of the converters are used bu DLPC low voltage supplies. The remaining three converters work as timing-based DC supply.

Produces crisp and high-quality images/videos

The DLP4710 digital micromirror device (DMD) is a digitally controlled micro-opto-electromechanical system (MEMS) spatial light modulator (SLM). It is coupled to an appropriate optical system. This results in producing crisp and high-quality images or video. DLP4710 is part of the chipset comprising the DLPC3439 display controller and DLPA3000/DLPA3005 PMIC/LED drivers. The compact physical size of the DLP4710 coupled with the controller provides a complete system solution. It enables a small form factor, low power, and high-resolution HD displays.

References Available

The design can be implemented in a number of applications requiring digital output display. This includes screenless TV (mobile smart TV), portable home cinema/business projector, game displays, Digital signage and interactive surface displays.

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The design is developed and released by Texas Instruments.  DLP Pico 0.47-inch TRP design contains documents such as design schematics, bill of materials, and PCB layouts.

These files can be downloaded here.


 

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