Television background control method

Abstract

The invention discloses a television background control method, the control method is used for controlling a background lamp strip, the background lamp strip is arranged along the edge of the back surface of a display device or arranged on a background plate, and the control method comprises the following steps: inputting a video to a terminal; decoding a video input into the terminal to obtain a first video signal, and obtaining a second video signal corresponding to the video edge region; the first video signal is transmitted to the display device, the display device outputs the first video, the second video signal is transmitted to the driver, and the driver drives the background lamp strip to output the second video at the corresponding position. The display device outputs a first video, the background lamp belt outputs a second video, the second video changes along with the first video, specifically, the second video changes along with the color brightness of the edge position of the first video, the color of the background lamp belt changes along with the edge color brightness, and the effect that the background lamp effect is linked with the first video played by the display device is formed. And a good display picture expansion effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of entertainment display systems, and in particular to a television background control method. Background Art

[0002] In modern living rooms, there are usually TVs and TV background walls. The TV plays videos. In some background walls, lighting devices are set to enhance the use of the TV, and most of the lighting devices use background light strips. In many cases, the lighting effect of the background light strip is a fixed lighting effect, such as a fixed color lighting effect, a breathing lighting effect, etc. In this way, whether watching movies, watching TV series, playing music, or singing, most of them can only choose one of the preset lighting effects to play continuously, or play in rotation. Therefore, the TV background in the prior art has the problem that the background lighting effect cannot be linked with the TV. Summary of the invention

[0003] In order to solve the technical problem that the background lighting effect in the TV background in the prior art cannot be linked with the TV, one of the purposes of the present invention is to provide a TV background control method.

[0004] One of the purposes of the present invention is achieved by the following technical solution:

[0005] A television background control method, the control method is used to control a background light strip, the background light strip is arranged along the back edge of a display device or is arranged on a background board, the control method comprises:

[0006] Input video to the terminal;

[0007] Decoding the video input to the terminal to obtain a first video signal and a second video signal corresponding to an edge area of ​​the video;

[0008] The first video signal is transmitted to a display device, and the display device outputs the first video. The second video signal is transmitted to a driver, and the driver drives the background light strip to output the second video at a corresponding position.

[0009] Optionally, the first video signal includes a brightness signal, a chrominance signal and a synchronization signal, and the synchronization signal includes a line change signal and a field change signal;

[0010] The second video signal is the first video signal before and after line break and / or before and after field break.

[0011] Optionally, the video edge area is an area with a width of one or several pixels.

[0012] Optionally, n dimming segments are provided on the background light strip, and each dimming segment has at least one lamp bead, and n≥1;

[0013] The video edge area is set to be n unit areas, and the unit areas are set in one-to-one correspondence with the dimming segments;

[0014] The second video signal is a regional video signal of n unit areas;

[0015] The driver is provided with n dimming channels, and the dimming segments are driven via the dimming channels, and the dimming segments output a second video corresponding to the unit area.

[0016] Optionally, the method for acquiring the second video signal corresponding to the unit area includes:

[0017] Acquire brightness signal, chrominance signal and synchronization signal of each pixel point in the unit area;

[0018] Calculating corresponding average values ​​of brightness, chromaticity and synchronization time within the unit area;

[0019] The corresponding average values ​​are used as the brightness signal, chrominance signal and synchronization signal of the unit area.

[0020] Optionally, the television background control method further includes a delay adjustment method, and the delay adjustment method includes:

[0021] The time when the display device outputs the first video is obtained, which is the first time; the time when the background light strip outputs the second video is obtained, which is the second time; the first time and the second time are analyzed to speed up the delayed video or slow down the overspeed video.

[0022] Optionally, the delay adjustment method is a first photosensitivity adjustment method, and the first photosensitivity adjustment method includes:

[0023] placing a photoreceptor in front of the display device;

[0024] The terminal transmits a first video signal to the display device and simultaneously transmits the second video signal to the background light strip;

[0025] The photoreceptor senses the time when the display device outputs the first video to obtain the first time, and the photoreceptor senses the time when the background light strip outputs the second video to obtain the second time;

[0026] Compare the time difference between the first time and the second time, speed up the time-delay video or slow down the overspeed video until the time difference meets the predetermined range.

[0027] Optionally, the delay adjustment method is a second photosensitivity adjustment method, and the second photosensitivity adjustment method includes:

[0028] connecting the photoreceptor to the terminal electrical signal;

[0029] placing the photoreceptor in front of the display device;

[0030] The terminal transmits a first video signal to the display device and simultaneously transmits the second video signal to the background light strip;

[0031] The photoreceptor acquires the transmission time of the first video signal, the photoreceptor senses the time when the display device outputs the first video to acquire the first time, and the photoreceptor senses the time when the background light strip outputs the second video to acquire the second time;

[0032] Calculate the difference between the transmission time and the first time to obtain a first delay time, calculate the difference between the transmission time and the second time to obtain a second delay time, calculate the delay difference, speed up the delayed video or slow down the overspeed video until the time difference meets a predetermined range.

[0033] Optionally, the delay adjustment method is a manual adjustment method, and the manual adjustment method includes:

[0034] Inputting a test video to the terminal, wherein the test video is a collaborative video, and a middle area and an edge area of ​​the collaborative video change collaboratively;

[0035] Decoding the video input to the terminal to obtain a first test video signal and a second test video signal corresponding to the edge area of ​​the video;

[0036] Transmitting the first test video signal to a display device, the display device outputs the first test video, transmitting the second test video signal to a driver, the driver drives the background light strip to output a second test video at a corresponding position;

[0037] Adjust the first test video and the second test video for collaborative differences.

[0038] Optionally, before inputting the video to the terminal, the control method further includes:

[0039] Preset initial background video signal;

[0040] Starting the terminal, the driver and the display device;

[0041] An initial background video signal is acquired, and the initial background video signal is transmitted to the driver, and the driver drives the background light strip to output an initial background video.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] After the driver obtains the second video signal, it converts the second video signal into an electrical signal to drive the background light strip to light up. The light color output by the lamp beads on the background light strip is the same as or similar to the color of the edge position corresponding to the first video. The display device outputs the first video, and the background light strip outputs the second video. The second video changes with the first video. Specifically, the second video changes with the color brightness of the edge position of the first video, and the color of the background light strip changes with the edge color brightness, forming an effect in which the background light effect is linked to the first video played by the display device, and the background light strip expands the display screen, with a good display screen expansion effect and a good video background atmosphere effect. DETAILED DESCRIPTION

[0044] The following will be combined with the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] Embodiment 1

[0048] The present invention provides a television background control method, the control method is used to control a background light strip, the background light strip is arranged along the back edge of a display device or is arranged on a background board, the control method comprises:

[0049] S1, input video to the terminal;

[0050] S2, video information acquisition, decoding the video input to the terminal, acquiring a first video signal, and acquiring a second video signal corresponding to the edge area of ​​the video;

[0051] S3, video output, transmitting the first video signal to the display device, the display device outputs the first video, transmitting the second video signal to the driver, the driver drives the background light strip to output the second video at the corresponding position.

[0052] The control method includes three main steps, namely, inputting video to the terminal, obtaining video information and video output. After the terminal obtains the video, it decodes the video to obtain a first video signal that can be recognized by a real device, and at the same time extracts the video signal of the edge area of ​​the video separately. The video signal is the second video signal. The second video signal is decoded and obtained along the edge of the video. The video corresponding to the second video signal is a strip video connected end to end. The background light strip is a strip light bar, and a plurality of linearly distributed lamp beads are arranged inside it. After the driver obtains the second video signal, it converts the second video signal into an electrical signal to drive the background light strip to light up. The light color output by the lamp beads on the background light strip is the same or similar to the color of the edge position corresponding to the first video. The display device outputs the first video, and the background light strip outputs the second video. The second video changes with the first video. Specifically, the second video changes with the color brightness of the edge position of the first video, and the color of the background light strip changes with the edge color brightness, forming an effect of the background light effect being linked with the first video played by the display device, and the background light strip expands the display screen, with a good display screen expansion effect, and a good video background atmosphere effect.

[0053] For the first video signal, specifically, the first video signal includes a brightness signal, a chrominance signal and a synchronization signal, and the synchronization signal includes a line break signal and a field change signal. The second video signal is the first video signal before and after the line break and before and after the field change. After decompressing the first video signal, the brightness signal, the chrominance signal and the synchronization signal are read, and after reading the line break signal and the field change signal, the video signals before and after the line break signal and before and after the field change signal are selected as the second video signal.

[0054] The video edge area is an area with a width of one or more pixels, such as 1 pixel, 2 pixels, 3 pixels, 4 pixels, 5 pixels, 6 pixels, 7 pixels, 8 pixels, 9 pixels, 10 pixels, 20 pixels, 30 pixels, 40 pixels, 50 pixels, 60 pixels, 70 pixels, 80 pixels, 90 pixels, 100 pixels and other numbers of pixels. In addition, for the horizontal edge area, the width refers to the number of vertical pixels, and for the vertical edge area, the width refers to the number of pixels in the same row.

[0055] Of course, the width of the video edge area can also be limited by a proportional size. The width of the video edge area is the video width of several proportional sizes. For example, the horizontal video edge area is 0.1 ratio of the horizontal size of the video, and the vertical video edge area is 0.1 ratio of the vertical size of the video. Of course, the specific ratios can be 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2 and other ratios.

[0056] The video edge area has different widths and can also have different lengths. Specifically, n dimming segments are set on the background light strip, and the dimming segment has at least one lamp bead, n≥1. The video edge area is set as n unit areas, and the unit areas are set one by one with the dimming segments. Specifically, the horizontal video edge area has n1 unit areas, and the vertical video edge area has n2 unit areas, n=2n1+2n2.

[0057] The second video signal is a regional video signal of n unit areas. The driver sets n dimming channels, drives the dimming segments through the dimming channels, and the dimming segments output the second video on the corresponding unit areas.

[0058] When the distribution density of the lamp beads on the background light strip is equal to the video pixel density, that is, a unit area is the area where a pixel is located, and the second video signal is the pixel signal of n pixels, the driver drives the lamp beads to display light one by one, and the lamp beads can output the color brightness on the corresponding pixel.

[0059] In most cases, the density of lamp beads is less than the density of video pixels. A unit area corresponds to multiple pixels in both the horizontal and vertical directions. The methods for obtaining the second video signal corresponding to the unit area include the mean method, random sampling method, array sampling method and interval sampling method, among which the mean method includes:

[0060] Obtaining brightness signal, chrominance signal and synchronization signal of each pixel in the unit area;

[0061] Calculate the corresponding average values ​​of brightness, chromaticity and synchronization time within the unit area;

[0062] The corresponding average values ​​are used as the brightness signal, chrominance signal and synchronization signal of the unit area.

[0063] For example, when the video edge area has an area with a width of several pixels and a length of several pixels, or when the video edge area has an area with a width of several pixels and a length of several pixels at the same time, the corresponding average values ​​of the brightness, chromaticity and synchronization time in the area are taken as the second video signal of the area.

[0064] In addition, in order to reduce the sampling workload, random sampling can be performed. Specifically, a number of pixels are randomly sampled in a unit area to obtain random samples, and the corresponding average values ​​of brightness, chromaticity and synchronization time of the random samples in the area are taken as the second video signal of the area.

[0065] Unlike random sampling, in the array sampling method, the sampling pixels are distributed in a rectangular array, and the horizontal distribution spacing and the vertical distribution spacing are at least one pixel. According to the rectangular array sampling pixels, the array samples are obtained, and the corresponding average values ​​of the brightness, chromaticity and synchronization time of the array samples in the area are taken as the second video signal of the area. The array sampling method reduces the sampling workload and can avoid random errors compared to the random sampling method, improve the accuracy of pixel sampling, and improve the accuracy of the second video signal of the area.

[0066] For the interval sampling method, in one sampling mode, after the line break signal and the field break signal are read, the video signals before and after the line break signal and before and after the field break signal are selected as the second video signal.

[0067] Specifically, the horizontal video edge area has n1 unit areas, and in the same frame, the field change signal in the synchronization signal is used as the sampling point reference, and the same row of pixels is sampled n1 times at intervals. For the first sampling point, the pixel corresponding to the field change signal can be used as the first sampling point, or the pixel corresponding to the field change signal can be used as the reference, and the first sampling point can be delayed by a certain number of pixels.

[0068] The vertical video edge area has n2 unit areas. In the same frame, the field change signal in the synchronization signal is used as the sampling point reference, and the same column of pixels is sampled n2 times at intervals. For the first sampling point, the pixel corresponding to the field change signal can be used as the first sampling point, or the pixel corresponding to the field change signal can be used as the reference and delayed by a certain number of pixels as the first sampling point.

[0069] For the interval sampling method, it has the smallest sampling amount, faster processing speed, short delay and flexible response.

[0070] The video is in frames, and the frames are in pixels. In some other control method implementations, the control method includes:

[0071] S0, preset the sampling frequency of the edge area of ​​the video;

[0072] S1, input video to the terminal;

[0073] S2, video information acquisition, decoding the video input to the terminal, acquiring a first video signal, and acquiring a second video signal corresponding to the edge area of ​​the video at a preset sampling frequency;

[0074] S3, video output, transmitting the first video signal to the display device, the display device outputs the first video, transmitting the second video signal to the driver, the driver drives the background light strip to output the second video at the corresponding position.

[0075] The main function of the background light strip is to display the background image, color, and brightness, forming a linkage with the video played by the display device. In this case, the control method reduces the sampling frequency of the edge area of ​​the video. For example, 1 time / second, 2 times / second, 3 times / second, 4 times / second, 5 times / second, 10 times / second, 15 times / second, 20 times / second, 25 times / second, 50 times / second, 60 times / second or other sampling frequencies can be preset. For high frame rate videos and high refresh display devices, sampling frequencies such as 20 times / second, 25 times / second, 50 times / second, and 60 times / second can be preset. Of course, based on lower data volume requirements, sampling frequencies such as 1 time / second, 2 times / second, 3 times / second, 4 times / second, 5 times / second, 10 times / second, and 15 times / second can be preset.

[0076] In some implementations of the delay adjustment method, the TV background control method further includes a delay adjustment method S4, and its basic delay adjustment method is:

[0077] The time when the display device outputs the first video is obtained, which is the first time. The time when the background light strip outputs the second video is obtained, which is the second time. The first time and the second time are analyzed to speed up the delayed video or slow down the overspeed video. By analyzing and adjusting the first time and the second time, the first time and the second time are made closer, and the output time difference between the display device and the background light strip is shortened, that is, the display delay is shortened. Specifically, the delay of the background light strip can be adjusted through the driver, or the delay can be adjusted through the terminal or the display device, so that the background light strip and the display device are synchronized.

[0078] In some specific implementations of the delay adjustment method, the delay adjustment method S4 is a first photosensitivity adjustment method S41, and the first photosensitivity adjustment method is as follows.

[0079] S411, placing a photoreceptor in front of the display device;

[0080] S412, the terminal transmits the first video signal to the display device, and simultaneously transmits the second video signal to the background light strip;

[0081] S413, the photoreceptor senses the time when the display device outputs the first video to obtain the first time, and the photoreceptor senses the time when the background light strip outputs the second video to obtain the second time;

[0082] S414: Compare the time difference between the first time and the second time, speed up the delayed video or slow down the overspeed video until the time difference meets a predetermined range.

[0083] For the first photosensitivity adjustment method S41, the photosensor is located in front of the display device, so that the photosensor is also within the light irradiation range of the background light strip, that is, the photosensor can simultaneously sense the first video output by the display device and the second video output by the background light strip, and at the same time, can also obtain and record the first time and the second time. The first time and the second time are specifically the time points when the display device and the background light strip output the video, and the delay is reduced by adjusting the time difference.

[0084] In some specific implementations of the delay adjustment method, the delay adjustment method is a second photosensitivity adjustment method S42, and the second photosensitivity adjustment method includes:

[0085] S421, connecting the photoreceptor to the terminal electrical signal;

[0086] S422, placing a photoreceptor in front of the display device;

[0087] S423, the terminal transmits the first video signal to the display device, and simultaneously transmits the second video signal to the background light strip;

[0088] S424, the photoreceptor acquires the transmission time of the first video signal, the photoreceptor senses the time when the display device outputs the first video, and acquires the first time, and the photoreceptor senses the time when the background light strip outputs the second video, and acquires the second time;

[0089] S425, calculating the difference between the transmission time and the first time to obtain the first delay time, calculating the difference between the transmission time and the second time to obtain the second delay time, calculating the delay difference, speeding up the delayed video or slowing down the overspeed video until the time difference meets the predetermined range.

[0090] For the second photosensitivity adjustment method S42, the photoreceptor is connected to the terminal electrical signal, and can obtain or know the time when the terminal transmits the first video and the second video to the outside. The photoreceptor is located in front of the display device, so that the photoreceptor is also within the light exposure range of the background light strip, that is, the photoreceptor can simultaneously sense the first video output by the display device and the second video output by the background light strip, and at the same time, it can also obtain and record the first time and the second time. Calculate the difference between the corresponding transmission time and the first time to obtain the first delay time, calculate the difference between the corresponding transmission time and the first delay time to obtain the second delay time, so that the display panel can be adjusted according to the first delay time and the second delay time to reduce the sense of screen delay. Of course, in this method,

[0091] In some specific implementations of the delay adjustment method, the delay adjustment method includes a manual adjustment method S43, and the manual adjustment method S43 includes:

[0092] S431, input a test video to the terminal, where the test video is a collaborative video, and the middle area and the edge area of ​​the collaborative video change collaboratively;

[0093] S432, decoding the video input to the terminal, obtaining a first test video signal, and obtaining a second test video signal corresponding to the edge area of ​​the video;

[0094] S433, transmitting the first test video signal to the display device, the display device outputs the first test video, transmitting the second test video signal to the driver, the driver drives the background light strip to output the second test video at the corresponding position;

[0095] S434, adjusting the collaborative difference between the first test video and the second test video.

[0096] For collaborative video, specifically, the video has two videos or animations that change simultaneously. For example, the collaborative video is the coordinated action of the middle video and the edge video. Both the middle video and the edge video are marquee videos, and the two marquee videos run synchronously. For example, the collaborative video can also be the coordinated color change of the middle video and the edge video. Of course, it can also be a combination of action and color, such as a four-frame pinball animation, a light strip showing the frame, and a TV showing the pinball. The delay is highlighted by the color and shape mutations during the collision, so that it is easy to directly observe the delay and easy to adjust.

[0097] The test video is decoded to obtain a first test video signal and a second test video signal, which are output and displayed via a display device and a background light strip respectively. By comparing the synchronization difference between the display device and the background light strip, the slow video can be accelerated and the fast video can be slowed down, thereby adjusting the delay difference between the display device and the background light strip and reducing the adverse effects of low delay.

[0098] Specifically, the delay can be adjusted through playback operations such as slow motion, acceleration, and pause, especially using multiple times slow motion and pause, which can directly and clearly observe the display difference, and adjust the playback frame forward or backward in slow motion and pause, thereby effectively reducing the difficulty of adjustment and improving the adjustment accuracy.

[0099] In addition, in some specific implementations of the delay adjustment method, the delay adjustment method includes a contrast adjustment method S44, and the contrast adjustment method S44 is as follows:

[0100] S441, input a loopback test video to the terminal, where the test video is a collaborative video, and the middle area and the edge area of ​​the collaborative video change collaboratively;

[0101] S442, decoding the video input to the terminal, obtaining a first test video signal, and obtaining a second test video signal corresponding to the edge area of ​​the video;

[0102] S443, transmitting the first test video signal to the display device, which outputs the first test video, transmitting the second test video signal to the driver, which drives the background light strip to output the second test video at the corresponding position;

[0103] S444, adjusting the collaborative difference between the first test video and the second test video.

[0104] The control signal of the background light strip is mostly the change of the circuit signal "0" and "1". The initial state is "0", and the electrical signal that controls the action of the background light strip is "1". The second test video signal is sent to the driver. The second test video is a loop test video, also called a marquee video. The contrast adjustment is performed through the loop test, so that each lamp bead of the background light strip displays a cycle one by one. The loop duration of the cycle is a known or predetermined time of the test. At the last LED light of the loop test, the current needs to be supported to light up. The instantaneous current at the end of the loop test changes from 1 to 0. In this way, the loop start time, loop end time, etc. can be recorded according to the change of current. Corresponding to the background light strip, the light strip delay is calculated according to the sending time, loop time and end time of the video signal sent by the terminal. The display device itself has a fixed display delay, such as response time. In this way, the background light strip delay can be adjusted through the driver, or the display delay can be adjusted through the terminal and the display device, so that the background light strip and the display device are synchronized.

[0105] The terminal mentioned above may be a set-top box, a computer or other device with multimedia playback function, and the driver is specifically a light strip control mainboard.

[0106] Embodiment 2

[0107] Compared with the TV background control method in Example 1, the difference lies in that the present embodiment also includes a control method during the startup process or the startup state, that is, it is possible to control the background light strip display during the startup process or the startup state, and the background light strip is arranged along the back edge of the display device or on the background board. The control method includes the following steps.

[0108] S1, preset initial background video signal;

[0109] S2, start the terminal, driver and display device;

[0110] S3, obtaining an initial background video signal, transmitting the initial background video signal to the driver, and the driver drives the background light strip to output the initial background video;

[0111] During the startup process or startup state of the terminal, driver and display device, the terminal can read the preset background video signal and transmit the background video signal to the driver at the same time. Under the drive of the driver, the background light strip outputs the background video. When preset, the background video signal is preset in the terminal, and there is no need to decompress and decode. The terminal can directly read and transmit it. In this way, the driver can quickly obtain the background video signal, the background light strip can quickly output the background video, and the background video can be quickly started at startup, thereby improving the environmental effect at startup.

[0112] Specifically, the background video signal may be a light strip breathing signal, a light strip marquee signal, a light strip wave signal, etc.

[0113] Furthermore, step S1 further includes: presetting a music background video signal and a preset mode, wherein the mode includes a video mode, an audio mode and a preset mode. The control method further includes step S4, wherein step S4 is: entering the preset mode.

[0114] The video mode uses the video input to the terminal as the signal source of the background light strip, that is, the background light strip changes with the video. The subsequent control method for selecting the video mode includes:

[0115] S51, input video to the terminal;

[0116] S52, decoding the video input to the terminal to obtain a first video signal, and obtaining a second video signal corresponding to the edge area of ​​the video;

[0117] S53, transmitting the first video signal to the display device, the display device outputs the first video, transmitting the second video signal to the driver, the driver drives the background light strip to output the second video at the corresponding position.

[0118] The audio mode uses the video signal in the video as the signal source and the audio signal in the video as the signal source for brightness control. The color of the background light strip changes with the video, and the brightness of the background light strip changes with the audio. The subsequent control methods for selecting the audio mode include:

[0119] S61, input video to the terminal;

[0120] S62, decoding the video input to the terminal, acquiring an audio signal and a first video signal, and acquiring a second video signal corresponding to the edge area of ​​the video;

[0121] S63, output display, transmit the first video signal to the display device, the display device outputs the first video, transmit the audio signal and the second video signal to the driver, the driver drives the background light strip to output the second video at the corresponding position and drives the second video to flash with the audio signal.

[0122] The preset mode is to use the preset music background video signal as the signal source, and the audio or video of the input terminal as the signal source for brightness control. The background light strip displays the preset music background video, and the brightness changes with the audio. The subsequent control method for selecting the preset mode includes:

[0123] S71, input video to the terminal;

[0124] S72, decoding the video input to the terminal to obtain an audio signal and a first video signal;

[0125] S73, transmitting the first video signal to the display device, the display device outputs the first video, transmitting the audio signal and the music background video signal to the driver, the driver drives the background light strip to output the music background video and drives the music background video to flash along with the audio signal.

[0126] For the video mode, audio mode and preset mode, the video mode is the control method described in the first embodiment, the music mode can be used to play video music, and the preset mode can be used for singing or karaoke. Based on the first embodiment, the audio mode and the preset mode expand more working scenes of the background light strip. In addition to conventional audio and video playback, video music and karaoke can also be played in a more suitable mode.

[0127] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A TV background control method, characterized in that: The control method is used to control a background light strip, which is arranged along the back edge of the display device or on the background board, and the control method includes: Input video to the terminal; Decoding the video input to the terminal to obtain a first video signal and a second video signal corresponding to an edge area of ​​the video; The first video signal is transmitted to a display device, and the display device outputs the first video. The second video signal is transmitted to a driver, and the driver drives the background light strip to output the second video at a corresponding position.

2. The TV background control method according to claim 1, characterized in that: The first video signal includes a brightness signal, a chrominance signal and a synchronization signal, and the synchronization signal includes a line change signal and a field change signal; The second video signal is the first video signal before and after line break and / or before and after field break.

3. The TV background control method according to claim 2, characterized in that: The video edge area is an area with a width of one or more pixels.

4. The TV background control method according to any one of claims 1 to 3, characterized in that: The background light strip is provided with n dimming segments, each of which has at least one lamp bead, and n≥1; The video edge area is set to be n unit areas, and the unit areas are set in one-to-one correspondence with the dimming segments; The second video signal is a regional video signal of n unit areas; The driver is provided with n dimming channels, and the dimming segments are driven via the dimming channels, and the dimming segments output a second video corresponding to the unit area.

5. The TV background control method according to claim 4, characterized in that: The method for acquiring the second video signal corresponding to the unit area includes: Acquire brightness signal, chrominance signal and synchronization signal of each pixel point in the unit area; Calculating corresponding average values ​​of brightness, chromaticity and synchronization time within the unit area; The corresponding average values ​​are used as the brightness signal, chrominance signal and synchronization signal of the unit area.

6. The TV background control method according to claim 1, characterized in that: The television background control method further includes a delay adjustment method, and the delay adjustment method includes: The time when the display device outputs the first video is obtained, which is the first time; the time when the background light strip outputs the second video is obtained, which is the second time; the first time and the second time are analyzed to speed up the delayed video or slow down the overspeed video.

7. The TV background control method according to claim 6, characterized in that: The delay adjustment method is a first photosensitivity adjustment method, and the first photosensitivity adjustment method includes: placing a photoreceptor in front of the display device; The terminal transmits a first video signal to the display device and simultaneously transmits the second video signal to the background light strip; The photoreceptor senses the time when the display device outputs the first video to obtain the first time, and the photoreceptor senses the time when the background light strip outputs the second video to obtain the second time; Compare the time difference between the first time and the second time, speed up the time-delay video or slow down the overspeed video until the time difference meets the predetermined range.

8. The TV background control method according to claim 6, characterized in that: The delay adjustment method is a second photosensitivity adjustment method, and the second photosensitivity adjustment method includes: connecting the photoreceptor to the terminal electrical signal; placing the photoreceptor in front of the display device; The terminal transmits a first video signal to the display device and simultaneously transmits the second video signal to the background light strip; The photoreceptor acquires the transmission time of the first video signal, the photoreceptor senses the time when the display device outputs the first video to acquire the first time, and the photoreceptor senses the time when the background light strip outputs the second video to acquire the second time; Calculate the difference between the transmission time and the first time to obtain a first delay time, calculate the difference between the transmission time and the second time to obtain a second delay time, calculate the delay difference, speed up the delayed video or slow down the overspeed video until the time difference meets a predetermined range.

9. The TV background control method according to claim 6, characterized in that: The delay adjustment method is a manual adjustment method, and the manual adjustment method includes: Inputting a test video to the terminal, wherein the test video is a collaborative video, and a middle area and an edge area of ​​the collaborative video change collaboratively; Decoding the video input to the terminal to obtain a first test video signal and a second test video signal corresponding to the edge area of ​​the video; Transmitting the first test video signal to a display device, the display device outputs the first test video, transmitting the second test video signal to a driver, the driver drives the background light strip to output a second test video at a corresponding position; Adjust the first test video and the second test video for collaborative differences.

10. The TV background control method according to claim 1, characterized in that: Before inputting the video to the terminal, the control method further includes: Preset initial background video signal; Starting the terminal, the driver and the display device; An initial background video signal is acquired, and the initial background video signal is transmitted to the driver, and the driver drives the background light strip to output an initial background video.