TWI661418B - Display capable of generating light according to audio signal - Google Patents

Abstract

A display device capable of emitting light corresponding to an audio signal includes an audio module, a first amplification module, a spectrum analysis module, a comparison module, and a light emitting module. The audio module generates an initial audio signal, and the first amplification module amplifies the initial audio signal to generate a first audio signal. The spectrum analysis module separates the first frequency band signal and the second frequency band signal according to the first audio signal. The comparison module compares the characteristic value of the signal in the first frequency band with the first threshold, and the comparison module compares the characteristic value of the signal in the second frequency band with the second threshold. When the characteristic value of the first frequency band signal is greater than or equal to the first threshold value, or when the characteristic value of the second frequency band signal is greater than or equal to the second threshold value, the comparison module generates an enable signal. The light emitting module emits light according to the enabling signal.

Description

Display device capable of emitting light in response to audio signals

The present invention relates to a display device, and more particularly to a display device capable of emitting light in response to an audio signal.

Existing display devices, such as LCD TVs, usually include a display panel and speakers. The display device can accept externally input audio and video signals, and separates the audio and video signals into audio and video signals, and then sends the audio and video signals to the speakers respectively. With the display panel, the speaker can generate sound based on the audio signal, and the display panel can generate image based on the video signal.

Some existing display devices are also provided with an additional light-emitting unit. This light-emitting unit can generate ambient light corresponding to sound when the display device is in operation to add atmosphere. Such a display device can compare the voltage of an audio signal in a video signal with a specific voltage threshold. When the audio signal exceeds a specific voltage threshold, the light-emitting device is driven to cause the light-emitting device to generate light.

Although the existing display device can be provided with a light-emitting device, and the light-emitting device generates ambient light corresponding to the sound, such a display device simply compares the voltage of the audio signal in the video signal with a specific voltage threshold, and cannot respond to the audio signal. The music style is used to adjust the comparison method. Therefore, under different music styles, the situation light generated may not be able to properly correspond to the sound rhythm, resulting in a poor user experience.

In view of this, the object of the present invention is to provide a display device that can emit light in response to audio signals, in order to enable the situational light generated by the display device to correspond to different music styles, and make the combination of sound and situational light more perfect, so as to increase User fun and improved user experience.

In an embodiment of the present invention, a display device capable of emitting light corresponding to an audio signal includes an audio module, a first amplification module, a spectrum analysis module, a comparison module, and a light emitting module. The audio module generates an initial audio signal. The first amplification module signal is connected to the audio module. The first amplification module amplifies the initial audio signal to generate a first audio signal. The spectrum analysis module signal is connected to the first amplification module. The spectrum analysis module analyzes the first audio signal and separates the first frequency band signal and the second frequency band signal according to the first audio signal. The comparison module signal is connected to a spectrum analysis module. The comparison module compares the characteristic value of the first frequency band signal with the first threshold value, and the comparison module compares the characteristic value of the second frequency band signal with the second threshold value. When the first frequency band signal is When the characteristic value of is greater than or equal to the first threshold or when the characteristic value of the second frequency band signal is greater than or equal to the second threshold, the comparison module generates an enable signal. The light emitting module signal is connected to the comparison module, and the light emitting module emits light according to the enabling signal.

In an embodiment of the invention, the characteristic value, the first threshold value and the second threshold value correspond to a voltage.

In an embodiment of the present invention, when the first frequency band signal is less than the first threshold value and the second frequency band signal is less than the second threshold value, the comparison module generates an disabled signal, and the light emitting module receives the disabled signal and stops emitting light.

In an embodiment of the present invention, the enable signal includes a high-level voltage, and the disable signal includes a low-level voltage.

In an embodiment of the present invention, the comparison module compares the characteristic value of the first frequency band signal with the first threshold value to generate a first comparison signal. When the characteristic value of the first frequency band signal is greater than or equal to the first threshold value, the comparison module A comparison signal generates an enable signal at a corresponding time point; the comparison module compares the characteristic value of the second frequency band signal with a second threshold value to generate a second comparison signal. When the characteristic value of the second frequency band signal is greater than or equal to the second threshold value, The comparison module generates an enable signal at a corresponding time point in the second comparison signal; the light emitting module emits light according to the enable signal in the first comparison signal and the second comparison signal.

In an embodiment of the present invention, the comparison module synthesizes the first comparison signal and the second comparison signal into a composite signal, and the light emitting module emits light according to the enable signal in the composite signal.

In an embodiment of the present invention, the light-emitting module includes a first light-emitting unit and a second light-emitting unit. The first light-emitting unit emits light according to the enable signal in the first comparison signal, and the second light-emitting unit emits light according to the second comparison signal. The enabling signal glows.

In an embodiment of the present invention, the spectrum analysis module further separates the third frequency band signal according to the first audio signal, and the comparison module compares a characteristic value of the third frequency band signal with a third threshold value. The characteristic value of the signal is greater than or equal to the third threshold, and the comparison module generates the enable signal.

In an embodiment of the present invention, the display device capable of emitting light corresponding to an audio signal further includes a speaker unit and a second amplifier module, wherein the second amplifier module is respectively connected to the audio module and the speaker unit, and the second amplifier module The group amplifies the initial audio signal to generate a second audio signal, and the speaker unit generates a sound according to the second audio signal.

In an embodiment of the present invention, the spectrum analysis module includes a music category identification unit, the music category identification unit analyzes the first audio signal to generate music category data, and the spectrum analysis module analyzes the first audio signal and separates the first audio signal according to the music category data. One frequency band signal and second frequency band signal.

In summary, according to various embodiments of the present invention, the contextual light energy generated by a display device that can emit light corresponding to an audio signal corresponds to different music styles, making the combination of sound and contextual light more perfect, thereby increasing the user ’s fun And improve the user experience.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the art to understand and implement the technical content of the present invention, and according to the content disclosed in this specification, the scope of patent applications and the drawings. Anyone skilled in the relevant art can easily understand the related objects and advantages of the present invention.

Please refer to FIG. 1 and FIG. 2, which are respectively a system block diagram and a schematic perspective view of a display device 100 a that can emit light in response to an audio signal according to an embodiment of the present invention. In this embodiment, the display device 100a includes a control module 110, a video module 120, a display panel 130, an audio module 140, a first amplification module 150, a spectrum analysis module 160, a comparison module 170, and a light-emitting module. 180. The control module 110 is respectively connected to the video module 120, the display panel 130, the audio module 140, the first amplification module 150, the spectrum analysis module 160, the comparison module 170, and the light emitting module 180, respectively. The control module 110 can control the video module 120 and the audio module 140 so that the video module 120 generates an initial video signal and the audio module 140 generates an initial audio signal.

For example, the display device 100a may receive external video and audio signals through a signal input terminal (for example, through an HDMI terminal), and the control module 110 separates the input video and audio signals into the initial audio signals through the video module 120 and the audio module 140. And the initial video signal, and further processing these signals. The video module 120 signal is connected to the display panel 130, and the video module 120 can perform image processing on the initial video signal, and the video module 120 transmits the processed video signal to the display panel 130, so that the display panel 130 can process the video signal based on the video signal. Generate images. The initial audio signal can be used to generate sound. In some embodiments, the initial audio signal can be transmitted to an external speaker to generate sound.

As shown in FIG. 2, in this embodiment, the display device 100 a is a thin TV, such as a liquid crystal TV or an organic light emitting diode (OLED) TV, but is not limited thereto. The light emitting module 180 is disposed on one side of the display panel 130, and may be disposed above the front frame of the display device 100a, but is not limited thereto. When the user views the image displayed by the display device 100a, the light-emitting module 180 can generate context light, and this context light can glow or flicker corresponding to the sound accompanying the image, which will be described in detail later.

As shown in FIG. 1, in this embodiment, the first amplification module 150 is connected to the audio module 140, and after the audio module 140 transmits the initial audio signal to the first amplification module 150, the first amplification module 150 will amplify The initial audio signal is generated to generate a first audio signal. The signal of the spectrum analysis module 160 is connected to the first amplification module 150. The spectrum analysis module 160 receives and analyzes the first audio signal, and further separates the signal of the first frequency band and the signal of the second frequency band according to the first audio signal. For example, the spectrum analysis module 160 separates different frequency bands of the first audio signal to generate a first frequency band signal and a second frequency band signal, or cuts the first audio signal into different first frequency band signals and a second frequency band signal. Signal. In some embodiments, the spectrum analysis module 160 not only separates the first frequency band signal and the second frequency band signal according to the first audio signal, but also separates more frequency band signals belonging to different frequency bands.

Please refer to FIG. 3A and FIG. 3B. FIG. 3A is a schematic diagram comparing a characteristic value of a first frequency band signal Sf1 and a first threshold Vt1 according to an embodiment of the present invention. FIG. 3B is a diagram comparing a second frequency band signal Sf2 according to an embodiment of the present invention. Schematic diagram of characteristic value and second threshold value Vt2. As shown in FIGS. 1, 3A, and 3B, the spectrum analysis module 160 separates the first frequency band signal Sf1 and the second frequency band signal Sf2 according to the first audio signal. For example, the first frequency band signal Sf1 is a high frequency band signal in the first audio signal. For example, the first frequency band signal Sf1 is separated from the 10 kHz to 25 kHz portion to generate a first frequency band signal Sf1; The signal Sf2 is a low-frequency signal in the first audio signal. For example, the 30-250 Hz portion of the first audio signal is separated to generate a second-frequency signal Sf2. The horizontal axis shown in FIG. 3A and FIG. 3B represents the time t corresponding to the first audio signal, and the vertical axis represents the voltage V. In this embodiment, the characteristic value, the first threshold value Vt1, and the second threshold value Vt2 correspond to a voltage, but are not limited thereto. In other embodiments, the characteristic value and the threshold value may also correspond to other audio characteristics of frequency, volume, or frequency spectrum.

As shown in FIGS. 1, 3A, and 3B, in this embodiment, the comparison module 170 signal is connected to the spectrum analysis module 160, and the spectrum analysis module 160 transmits the first frequency band signal Sf1 and the second frequency band signal Sf2 to the comparison. Module 170: The comparison module 170 compares the characteristic value of the first frequency band signal Sf1 with the first threshold value Vt1, and the comparison module 170 compares the characteristic value of the second frequency band signal Sf2 with the second threshold value Vt2. If the characteristic value of the first frequency band signal Sf1 is greater than or equal to the first threshold Vt1, the light emitting module 180 will emit light; if the characteristic value of the second frequency band signal Sf2 is greater than or equal to the second threshold Vt2, the light emitting module 180 will also emit light; If the first frequency band signal Sf1 is less than the first threshold value Vt1 and the second frequency band signal Sf2 is less than the second threshold value Vt2, the light emitting module 180 will not emit light.

For example, at time point t1 and time point t2 shown in FIG. 3A, the characteristic value of the first frequency band signal Sf1 is greater than the first threshold value Vt1, so the first audio signal is played or output on the display device 100a to play sound through an external speaker At time t1, the light emitting module 180 emits light at time t1 and time t2 respectively; at time t3 shown in FIG. 3B, the characteristic value of the second frequency band signal Sf2 is greater than the second threshold Vt2, so it is played or output on the display device 100a When the first audio signal is used to play sound through an external speaker, the light emitting module 180 will still emit light at time point t3, and the light emitting module 180 will not emit light at other times shown in FIGS. 3A and 3B.

As shown in FIGS. 3A and 3B, in this embodiment, the first threshold Vt1 and the second threshold Vt2 are different voltage values, and the first threshold Vt1 and the second threshold Vt2 are different based on different frequency bands or music styles. . In addition, if the first audio signal is separated into three or more frequency bands, different thresholds may be set for different frequency bands to correspond to different frequency bands or music styles.

As shown in FIGS. 1, 3A and 3B, in this embodiment, when the characteristic value of the first frequency band signal Sf1 is greater than or equal to the first threshold value Vt1, or when the characteristic value of the second frequency band signal Sf2 is greater than or equal to the second value The threshold value Vt2, the comparison module 170 will generate an enable signal, and the light emitting module 180 signal is connected to the comparison module 170, and the comparison module 170 will transmit this enable signal to the light emitting module 180, and the light emitting module 180 receives the enable signal and Glow. When the first frequency band signal Sf1 is smaller than the first threshold value Vt1 and the second frequency band signal Sf2 is smaller than the second threshold value Vt2, the comparison module 170 generates an disabled signal, and the light emitting module 180 receives the disabled signal and stops emitting light. Whether the light emitting module 180 emits light can be controlled by the control module 110 according to the comparison result of the comparison module 170, or the driving circuit of the comparison module 170 can make the light emitting mode according to the voltage output by the comparison result. Group 180 glows or does not glow. For example, the enable signal includes a high-level voltage, and the disable signal includes a low-level voltage. A high level voltage can cause the light emitting module 180 to emit light, while a low level voltage cannot cause the light emitting module 180 to emit light. For example, the high-level voltage is + 5V and the low-level voltage is 0V, but it is not limited thereto.

Please refer to FIG. 4. FIG. 4 is a system block diagram of a display device capable of emitting light corresponding to an audio signal according to another embodiment of the present invention. As shown in FIG. 4, in this embodiment, the display device 100b further includes a speaker unit 190 and a second amplification module 200. The signal of the speaker unit 190 is connected to the second amplification module 200. The second amplification modules 200 are respectively The signal is connected to the audio module 140 and the speaker unit 190. The audio module 140 transmits the initial audio signal to the first amplification module 150 and the second amplification module 200, respectively. The second amplification module 200 simultaneously amplifies the initial audio signal to generate a second audio signal, and the second amplification module The group 200 transmits the second audio signal to the speaker unit 190. The speaker unit 190 receives the second audio signal and generates sound according to the second audio signal. When the speaker unit 190 emits a sound, the ambient light generated by the light-emitting module 180 synchronously emits light or blinks according to the first frequency band signal Sf1 and the second frequency band signal Sf2.

As shown in FIG. 4, in this embodiment, since the first amplification module 150 and the second amplification module 200 of the display device 100 b can respectively amplify the initial audio signal, the display device 100 b can be compared with the spectrum analysis module 160 and the comparison. The requirements of the module 170 and the speaker unit 190 respectively amplify the initial audio signal with different amplitudes. In other embodiments, the display devices 100a and 100b may not have a speaker unit, and the first amplification module 150 or the second amplification module 200 may be externally connected to an external speaker to emit sound through the external speaker.

As shown in FIG. 3A, FIG. 3B, and FIG. 4, in this embodiment, the spectrum analysis module 160 of the display device 100b includes a music category identification unit 161. The music category identification unit 161 analyzes the first audio signal to generate music category data. The spectrum analysis module 160 analyzes the first audio signal according to the music category data and separates the first frequency band signal Sf1 and the second frequency band signal Sf2. For example, the music category recognition unit 161 can recognize music of different styles. The music category recognition unit 161 can generate music category data after identifying music of a specific style, and the music category data indicates which style the first audio signal belongs to. Music, such as rock or pop. The spectrum analysis module 160 separates the required frequency band in the first audio signal according to the music style indicated by the music category data. For example, if the first audio signal belongs to rock music, the spectrum analysis module 160 can focus on low frequency and high frequency to separate the required frequency band, and if the first audio signal belongs to pop music mainly composed of human voice, the spectrum analysis module 160 can focus on the IF to separate the required frequency band.

As shown in FIG. 4, in this embodiment, the spectrum analysis module 160 of the display device 100b further includes a music category database 162. The music category database 162 can store spectrum patterns of different styles of music, such as rock music and pop Music's spectrum distribution statistics. The music category identification unit 161 may compare the frequency spectrum of the first audio signal with statistical data in the music category database 162 to determine what kind of music the first audio signal belongs to.

Please refer to FIGS. 5A and 5B. FIG. 5A is a schematic diagram of a first comparison signal according to an embodiment of the present invention, and FIG. 5B is a schematic diagram of a second comparison signal according to an embodiment of the present invention. As shown in FIG. 5A and FIG. 5B, in this embodiment, after the spectrum analysis module 160 separates the first frequency band signal Sf1 and the second frequency band signal Sf2 according to the first audio signal, the comparison module 170 determines the first frequency band signal Sf2. Sf1 and the second frequency band signal Sf2 generate a first comparison signal Sc1 and a second comparison signal Sc2, respectively. Moreover, as shown in FIGS. 3A, 3B, 4, 5A, and 5B, in this embodiment, the comparison module 170 of the display device 100 b includes a first comparator 171 and a second comparator 172. The comparator 171 compares the characteristic value of the first frequency band signal Sf1 with the first threshold Vt1 to generate a first comparison signal Sc1. When the characteristic value of the first frequency band signal Sf1 is greater than or equal to the first threshold value Vt1, the first comparator 171 A comparison signal Sc1 generates an enable signal at a corresponding time point; the second comparator 172 compares the characteristic value of the second frequency band signal Sf2 with the second threshold value Vt2 to generate a second comparison signal Sc2. When the characteristic of the second frequency band signal Sf2 When the value is greater than or equal to the second threshold Vt2, the second comparator 172 generates an enable signal at a corresponding time point in the second comparison signal Sc2.

For example, in FIG. 3A and FIG. 5A, the characteristic value of the first frequency band signal Sf1 at the time point t1 and the time point t2 is greater than the first threshold value Vt1, and the first comparator 171 compares the time in the first comparison signal Sc1. An enabling signal is generated at points t1 and t2. For example, the first comparison signal Sc1 will have a square wave at time t1 and time t2 respectively. The voltage of the square wave is at a high level voltage Vh, and the first comparison signal Sc1 is at the rest. Time is maintained at a low level voltage V1; in FIG. 3B and FIG. 5B, the characteristic value of the second frequency band signal Sf2 at the time point t3 is greater than the second threshold value Vt2, and the second comparator 172 will be in the second comparison signal Sc2 An enabling signal is generated at time point t3. For example, the second comparison signal Sc2 will have a square wave at time point t3. The voltage of the square wave is at a high level voltage Vh, and the second comparison signal Sc2 is maintained at a low level for the rest of the time. Voltage Vl. In this way, the light emitting module 180 emits light at the time point t1, the time point t2, and the time point t3 according to the first comparison signal Sc1 and the second comparison signal Sc2, respectively.

As shown in FIG. 4, in this embodiment, the comparison module 170 further includes a third comparator 173. The spectrum analysis module 160 can separate the first audio signal into a third frequency band signal, and the third comparator 173 can compare The characteristic value of the third frequency band signal and the third threshold value generate a third comparison signal. When the characteristic value of the third frequency band signal is greater than or equal to the third threshold value, the third comparator 173 generates the signal at the corresponding time point in the third comparison signal. The enabling signal, and the light emitting module 180 can also emit light according to the enabling signal in the third comparison signal. In different embodiments, the comparison module 170 may include more than four comparators in response to the four or more frequency band signals separated from the first audio signal by the spectrum analysis module 160.

As shown in FIG. 4, in this embodiment, the light emitting module 180 includes a first light emitting unit 181, a second light emitting unit 182, and a third light emitting unit 183, and the first light emitting unit 181, the second light emitting unit 182, and a third light emitting unit. The units 183 may emit light according to the enable signal. For example, the spectrum analysis module 160 separates the first audio signal into three frequency band signals, and the comparison module 170 generates three comparison signals based on the three frequency band signals. The first light emitting unit 181 and the second light emitting unit 182 The third light emitting unit 183 may correspond to the three comparison signals, and emit light according to the enabling signals in the three comparison signals. For example, the first light-emitting unit 181 emits light at the time point t1 and the time point t2 according to the enable signal in the first comparison signal Sc1, and the second light-emitting unit 182 emits light according to the enable signal in the second comparison signal Sc2. At time t3, light is emitted.

Please refer to FIG. 6, which is a schematic diagram of a composite signal Ssyn according to an embodiment of the present invention. As shown in FIGS. 4, 5A, 5B, and 6, the comparison module 170 further includes a synthesis unit 174. The synthesis unit 174 of the comparison module 170 can synthesize the first comparison signal Sc1 and the second comparison signal Sc2 into a synthesized signal. Ssyn, therefore, the synthesized signal Ssyn will generate a square wave with a high level voltage Vh at time point t1, time point t2, and time point t3, respectively, and the synthesized signal Ssyn will remain at a low level voltage Vl at other times. The light emitting module 180 can emit light at the time point t1, the time point t2, and the time point t3 respectively according to the enable signal in the synthesized signal Ssyn.

In summary, according to various embodiments of the present invention, the ambient light energy generated by a display device that can emit light corresponding to an audio signal corresponds to different music styles. The audio signal is separated into frequency band signals of different frequency bands, and different frequency bands are compared respectively. The signal and different thresholds enable the light emitting module to emit light according to different frequency band signals, thereby perfecting the combination of sound and contextual light, thereby increasing the user's fun and improving the user experience.

Although the technical content of the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art and making some changes and retouching without departing from the spirit of the present invention should be covered by the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended patent application.

100a, 100b‧‧‧ display device

110‧‧‧control module

120‧‧‧Video Module

130‧‧‧display panel

140‧‧‧Audio Module

150‧‧‧The first magnification module

160‧‧‧Spectrum Analysis Module

161‧‧‧Music category recognition unit

162‧‧‧ Music Category Database

170‧‧‧Comparison Module

171‧‧‧first comparator

172‧‧‧Second Comparator

173‧‧‧Third Comparator

174‧‧‧Synthetic unit

180‧‧‧light emitting module

181‧‧‧first light emitting unit

182‧‧‧Second light emitting unit

183‧‧‧third light emitting unit

190‧‧‧Speaker unit

200‧‧‧Second Amplification Module

Sc1‧‧‧The first comparative signal

Sc2‧‧‧Second Comparative Signal

Sf1‧‧‧First Band Signal

Sf2‧‧‧ second-band signal

Ssyn‧‧‧Synthetic signal

t‧‧‧time

t1, t2, t3‧‧‧

V‧‧‧Voltage

Vh‧‧‧High level voltage

Vl‧‧‧Low level voltage

Vt1‧‧‧ first threshold

Vt2‧‧‧Second threshold

1 is a system block diagram of a display device capable of emitting light corresponding to an audio signal according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of a display device capable of emitting light corresponding to an audio signal according to an embodiment of the present invention; FIG. 3A is an implementation of the present invention; A schematic diagram of comparing characteristic values of a first frequency band signal with a first threshold; FIG. 3B is a schematic diagram of comparing characteristic values of a second frequency band signal with a second threshold according to an embodiment of the present invention; FIG. 4 is another embodiment of the invention FIG. 5A is a schematic diagram of a first comparison signal according to an embodiment of the present invention; FIG. 5B is a schematic diagram of a second comparison signal according to an embodiment of the present invention; and FIG. 6 is A schematic diagram of a composite signal according to an embodiment of the present invention.

Claims (9)

A display device capable of emitting light corresponding to an audio signal includes: an audio module that generates an initial audio signal; a first amplification module that is connected to the audio module; the first amplification module amplifies the initial audio signal to generate an audio signal; A first audio signal; a spectrum analysis module, the signal is connected to the first amplification module, the spectrum analysis module analyzes the first audio signal and separates a first frequency band signal and a second frequency signal according to the first audio signal Frequency band signal; a comparison module, the signal is connected to the spectrum analysis module, the comparison module compares a characteristic value of the first frequency band signal with a first threshold value, and the comparison module compares a characteristic of the second frequency band signal And a second threshold, wherein when the characteristic value of the first frequency band signal is greater than or equal to the first threshold value or when the characteristic value of the second frequency band signal is greater than or equal to the second threshold value, the comparison module generates Consistent energy signal; and a light emitting module, the signal is connected to the comparison module, and the light emitting module emits light according to the enabling signal, wherein the comparison module compares the signal of the first frequency band The characteristic value and the first threshold value are used to generate a first comparison signal. When the characteristic value of the first frequency band signal is greater than or equal to the first threshold value, the comparison module generates the corresponding time point in the first comparison signal. The enabling signal; the comparison module compares the characteristic value of the second frequency band signal with the second threshold value to generate a second comparison signal, and when the characteristic value of the second frequency band signal is greater than or equal to the second threshold value, The comparison module generates the enable signal at a corresponding time point in the second comparison signal; the light emitting module emits light according to the first comparison signal and the enable signal in the second comparison signal. The display device capable of emitting light corresponding to an audio signal according to item 1 of the scope of the patent application, wherein the characteristic value, the first threshold value, and the second threshold value correspond to a voltage. According to the display device capable of emitting light corresponding to audio signals as described in item 1 of the scope of patent application, when the first frequency band signal is less than the first threshold value and the second frequency band signal is less than the second threshold value, the comparison module generates a Disabled signal, the light emitting module stops emitting light after receiving the disabled signal. The display device capable of emitting light corresponding to an audio signal according to item 3 of the scope of patent application, wherein the enable signal includes a high-level voltage and the disable signal includes a low-level voltage. According to the display device capable of emitting light corresponding to an audio signal as described in item 1 of the scope of patent application, wherein the comparison module synthesizes the first comparison signal and the second comparison signal into a composite signal, and the light-emitting module is based on the composite signal. The enabling signal in the signal glows. The display device capable of emitting light corresponding to an audio signal according to item 1 of the scope of patent application, wherein the light emitting module includes a first light emitting unit and a second light emitting unit, and the first light emitting unit is based on the first comparison signal. The enabling signal is illuminated, and the second light-emitting unit emits light according to the enabling signal in the second comparison signal. The display device capable of emitting light corresponding to an audio signal as described in item 1 of the scope of patent application, wherein the spectrum analysis module further separates a third frequency band signal according to the first audio signal, and the comparison module compares the third frequency band A characteristic value of the signal and a third threshold value. When the characteristic value of the third frequency band signal is greater than or equal to the third threshold value, the comparison module generates the enable signal. The display device capable of emitting light corresponding to an audio signal as described in item 1 of the scope of the patent application, further includes a speaker unit and a second amplification module, wherein the second amplification module is respectively connected to the audio module and the audio signal. A speaker unit, the second amplification module amplifies the initial audio signal to generate a second audio signal, and the speaker unit generates a sound according to the second audio signal. According to the display device capable of emitting light corresponding to an audio signal as described in item 1 of the scope of the patent application, the spectrum analysis module includes a music category identification unit, and the music category identification unit analyzes the first audio signal to generate a music category data The spectrum analysis module analyzes the first audio signal and separates the first frequency band signal and the second frequency band signal according to the music category data.