WO2011088635A1

WO2011088635A1 - Dvd playing device supporting projection mode

Info

Publication number: WO2011088635A1
Application number: PCT/CN2010/071066
Authority: WO
Inventors: 方东
Original assignee: 福建网讯科技有限公司
Priority date: 2010-01-19
Filing date: 2010-03-16
Publication date: 2011-07-28

Abstract

A DVD playing device supporting projection mode includes a DVD player. The output of an audio and video processing module of said DVD player is connected to a micro projection module. Without connecting to an external display device, the player can directly display the content of the DVD by projection methods.

Description

Instruction Manual DVD playback device supporting projection mode

The present invention relates to a mobile multimedia player, and more particularly to a DVD player that supports a projection display mode.

Background technique

With the gradual promotion of multimedia and the increasing innovation of digital technology, the application requirements of multimedia playback have become more and more extensive. With the shrinking of DVD reading devices and the continuous updating of multimedia playback technologies, the market demand for portable DVD players is becoming wider and wider.

The portable DVD player currently uses TFT LCD as a display device for video playback. The TFT LCD is large in size, limited in viewing angle, limited in display size, and limited in display resolution, so that such portable players are affected by the viewing performance and user experience when watching movies.

As a display technology for magnifying display images, projection technology has been widely used in projectors and the like. The way and principle of projection display is very different from the LCD technology currently used in portable DVD players. Basically all types of projectors first emit light onto an image display element to produce an image, which is then projected through the lens. The image display elements of the projector include a transmissive type that produces an image by light transmission and a reflective type that produces an image by using reflected light. In either case, the light of the projector is divided into three primary colors of red, green, and blue, and images of various colors are produced. Since the component itself can only perform monochrome display, it is necessary to use three components to respectively generate three primary colors, and then combine the three primary color images into one image by an optical device such as a prism, and then project it onto the screen through a focusing lens or the like.

The large-screen display technology of projection technology has become a direction for implementing large-screen display technology on portable multimedia devices, but since the data format and display resolution of the projector are largely different from the output of the DVD player, the present invention provides a A DVD playback device that supports a projection mode.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a DVD playback apparatus that supports a projection mode that can directly display the contents of a DVD in a projected manner without the need for an external display device.

The present invention is implemented as follows: A DVD playback device supporting a projection mode, including DVD broadcasting The amplifier is characterized in that: the output of the audio and video processing module of the DVD player is connected with a micro projection module.

The invention directly projects and displays the DVD video information through the micro-projection module, and the DVD-body structure has small volume, low cost and good market value.

DRAWINGS

1 is a block diagram showing the hardware composition of the present invention.

2 is a schematic view showing the composition of the micro projection module of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1, the present invention provides a DVD playback device supporting a projection mode, including a DVD player, wherein: the output of the audio and video processing module of the DVD player is connected with a micro projection module. The micro projection display module comprises a micro projection drive module with a video data converter and a liquid crystal drive, a optomechanical module, and a miniature projection constant current drive module for supplying power to the optomechanical module. The video stream signal format that the video data converter can process includes: YCbCr, HDMI, VGA. The optomechanical module includes a liquid crystal display module, a light source, and an optical imaging module. The liquid crystal display module and the light source are respectively connected to the optical imaging module, and the image on the liquid crystal display module is input to the optical imaging module and displayed in a projection mode under excitation of the light source. come out. The micro-projection constant current driving module is a DC/DC converter combined with step-up and step-down.

It should be noted that the liquid crystal display module in the micro projection module is suitable for small physical size on a portable player (small 10 X 10 is higher than 640 X 480 resolution, and is not limited to the following display technologies: LCOS, FLCOS, DLPo

The light source adopts a small-volume fixed illumination technology to efficiently generate visible light and reduce heat generation of the optomechanical module. Use but not limited to the following light source technologies: LED, laser.

The optical imaging module adopts a plurality of lenses to realize the image of the liquid crystal display module through the projection mode in a small volume by means of reflection and refraction, and supports manual focus adjustment, and is not limited to the following materials: glass , resin.

In addition, it is worth mentioning that, as shown in FIG. 2, the video data converter in the pico-projection module of the present invention is connected with a video receiver for external video data access. When the content of the external video is projected and projected, the externally input audio can be played in real time through the audio processing module and the speaker inside the player. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should fall within the scope of the present invention.

Claims

Claim

A DVD playback device supporting a projection mode, comprising a DVD player, wherein: the output of the audio and video processing module of the DVD player is connected with a micro projection module.

2. The DVD playback device supporting a projection mode according to claim 1, wherein: the micro projection display module comprises a micro projection drive module having a video data converter and a liquid crystal drive, a optomechanical module, and A miniature projection constant current drive module that supplies power to the optomechanical module.

3. The DVD playback device supporting projection display according to claim 2, wherein the video stream signal format that the video data converter can process comprises: YCbCr, HDMI, VGA.

4. The DVD playback device supporting projection display according to claim 2, wherein the video data converter is connected to a video receiver for external video data access.

The DVD playback device supporting a projection mode according to claim 2, wherein: the optomechanical module comprises a liquid crystal display module, a light source and an optical imaging module, and the liquid crystal display module and the light source are respectively connected to the optical imaging module The image on the liquid crystal display module is input to the optical imaging module under the excitation of the light source and displayed in a projection mode.

6. The DVD playback device supporting projection mode according to claim 2, wherein: the micro-projection constant current driving module is a DC/DC converter combined with step-up and step-down.

The DVD playback device supporting a projection mode according to claim 5, wherein: the optical imaging module comprises a plurality of lenses, and the image on the liquid crystal display module can be displayed in a projection mode by a lens combination. And support manual adjustment of focus and other functions.

8. The DVD playback device supporting projection display according to claim 5, wherein: the resolution of the liquid crystal display module is higher than 640*480, and the display technologies used are: LC0S, FLCOS, DLP, laser projection.

9. The DVD player supporting projection display according to claim 5, wherein the light source adopts a small-volume fixed illumination technology to efficiently generate visible light and reduce heat generation of the optical module, and the light source technology used: LED , laser.