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Display device

A display device and light spot technology, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output process, etc., can solve the problems of high cost and inconvenient use of display devices, meet the needs of interactivity, and enrich applications. Effect

Active Publication Date: 2012-10-03
BOE TECH GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned display devices capable of realizing writing and drawing functions are either costly, or require the help of other processing equipment to complete the corresponding functions, which is inconvenient to use.

Method used

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0036] figure 1 It is a schematic diagram of the composition and structure of the display device provided by the present invention. The display device includes two parts: a display module 100 and a remote control module 110. The display module 100 can be a TV, a computer monitor, a monitor, etc. The basic function of the existing display module 100 is to receive the video signal from the video signal source, and then display it on the screen; the present invention expands the functions of the display module 100 and the remote control module 110, and adds a laser emitting unit 112 to the remote control module 110 and the camera unit 111, the laser beam 120 is emitted to the screen by the laser emitting unit 112; The signal is processed t...

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Abstract

The invention discloses a display device and aims to solve the problem that non-contact handwriting and drawing functions cannot be realized by using the conventional display device. The display device comprises a first wireless interface unit, a light spot position identification unit, a canvas processing unit, a video signal processing unit and a screen display unit, wherein the first wireless interface unit receives a screen camera shooting signal in a wireless mode; the light spot position identification unit identifies the positions of light spots which are formed by emitting laser beams to a screen from the screen camera shooting signal; the canvas processing unit is used for synthesizing tracks of the light spots; the video signal processing unit superposes a canvas video signal and a video signal which comes from a video signal source; the screen display unit is connected with the video signal processing unit; one end of the light spot position identification unit is connected with the first wireless interface unit, and the other end of the light spot position identification unit is connected with the canvas processing unit; and the other end of the canvas processing unit is connected with the video signal processing unit. The display device has the advantages that by combination of a laser technology, a short-distance wireless communication technology and an image processing technology, a user can perform writing operation, drawing operation and the like on the screen through a remote controller.

Description

technical field [0001] The invention relates to a display device, in particular to a display device with writing function. Background technique [0002] Existing display devices, such as LCD TVs, rear-projection TVs, computer monitors, etc., are usually mainly used to receive display signals and present colorful TV program content or digital video content for users. With the development of high-tech, network With the popularization of applications, more and more extended functions are integrated into display devices to meet people's increasingly rich demands. For example, touch screens are integrated in some display devices, and users can control displayed content with their fingers, such as turning pages and marking documents, which is suitable for small meeting occasions. For another example, the user can run some application programs through host devices with data processing functions such as PCs and notebooks, provide input for the application programs through handwriti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G06F3/033G06F3/0354
Inventor 孙阳孙涛
Owner BOE TECH GRP CO LTD
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