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Control method of display screen, and control system of display screen

A control method and technology for a control system, which are applied in the field of control systems for display screens, can solve the problems of poor accuracy, many judgment errors, and large interference, and achieve the effects of reducing energy consumption, prolonging service life, and increasing convenience.

Inactive Publication Date: 2018-11-23
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for these two methods, using the camera to detect whether there are people in the viewing area is limited by the wide-angle range of the camera and the data processing capability of the TV chip, so it is difficult to process events in a large range and quickly; the method of using infrared detection Detect whether there are people in the viewing area, the interference is relatively large during the detection process, and there are many judgment errors, that is, the accuracy is poor

Method used

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  • Control method of display screen, and control system of display screen
  • Control method of display screen, and control system of display screen
  • Control method of display screen, and control system of display screen

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Please refer to Figure 1 to Figure 7 , this embodiment provides a method for controlling a display screen, including:

[0053] Step S1, using an ultrasonic detection device to determine the visible range of the display screen. It should be noted that the visible range of the display screen refers to an area where a viewer can clearly observe all content on the display screen. Please refer to figure 2 , γ is the viewing angle of one side of the display screen, and the sum of the viewing angles on both sides can indicate the size of the viewing range, that is, the viewing range A=2γ.

[0054] Wherein, step S1 includes:

[0055] According to the central viewing distance length S and the edge viewing distance length L of the display screen, calculate the cosine value of the angle α between the central viewing distance S and the edge viewing distance L, so as to obtain the angle of the visible range.

[0056]It should be noted that the central viewing distance S is gen...

Embodiment 2

[0096] Please refer to Figure 8 to Figure 12 , the present embodiment provides a control system for a display screen, comprising: an ultrasonic detection module 1 and a control device 2; the ultrasonic detection module 1 is arranged on the display screen 3; Whether there is a viewer, a detection result is generated, and the detection result is sent to the control device 2; the control device 2 is electrically connected to the ultrasonic detection module 1, and is used to control the switch state of the display screen 3 according to the detection result.

[0097] Wherein, the ultrasonic detection module 1 is arranged on the frame parallel to the horizontal direction of the display screen 3 and located on the central axis in the vertical direction.

[0098] The display screen 3 is generally as Figure 9 Placed in the manner shown, the frame of the display screen 3 parallel to the horizontal direction is Figure 9 The upper and lower long sides along the horizontal direction, ...

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Abstract

The invention provides a control method of a display screen and a control system of a display screen and belongs to the display technical field. With the control method of the display screen and the control system of the display screen of the invention adopted, a problem that an existing display screen control system fails to quickly and accurately judge whether a viewer exists in a visible rangecan be solved. The control method of the display screen of the present invention includes the following steps that: an ultrasonic detecting device is adopted to detect whether a viewer exists in the visible range of the display screen, and a detection result is generated; and the on-off state of the display screen is controlled according to the detection result.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display screen control method and a display screen control system. Background technique [0002] At present, many public places are equipped with electronic galleries or advertising screens for media communication or advertising. In order to enable people who pass by the electronic gallery or advertising screen at any time to see content, often resulting in an e-gallery or advertising screen playing all the time. [0003] However, in many cases, there are often situations where there are no viewers within the playback range but the electronic gallery or advertising screen still plays. This is undoubtedly a waste of playback resources and reduces the service life of the screen. [0004] In the prior art, cameras or infrared detection are usually used to determine whether there are viewers within the viewing angle range of the electronic gallery or advertising scree...

Claims

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Application Information

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IPC IPC(8): G09G3/00
CPCG09G3/006H04N21/41415H04N21/812H04N21/4436H04N21/42203H04N21/44218G06F1/3231G06F1/3265G06F1/1601G01S15/88G01S15/46G09G2354/00G09G2330/027G09G2330/026G09G2330/021G09G2320/068G06F3/147G09G2380/16G09G2360/144G06F3/011Y02D10/00G09G3/00G01S15/04
Inventor 王永波
Owner BOE TECH GRP CO LTD
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