TWI658449B - Display device and driving method thereof - Google Patents

Abstract

A display device and a driving method thereof. The display device includes a display panel, a sound generating module, an image analysis circuit, and a sound driving circuit. The display panel has a plurality of display units. The sound generating module has a plurality of sound generating elements, which are arranged corresponding to at least one to one with the display unit. The image analysis circuit receives an image signal, analyzes the position of the sounding object in the display screen, and provides sounding information correspondingly. The sound driving circuit determines the first display unit of the display unit overlapping the sounding object according to the sounding information, and adjusts the loudness of the sounding element corresponding to the first display unit.

Description

Display device and driving method thereof

The present invention relates to a display device and a driving method thereof, and in particular to a display device and a driving method thereof that can use a sound emitting element in a display panel to perform sound emission.

With the advancement of electronic technology, display devices have become an indispensable tool in people's lives. In order to provide a good human-machine interface, a high-quality display panel has become a necessary device in a display device.

In a conventional display device, a designer usually presents a display screen to be displayed through a display panel, and outputs a sound corresponding to the display screen through a speaker mounted outside the display panel. That is, the display screen and its corresponding sound are output through different transmission paths, respectively. In this case, when the user watches through the display device, the user will lack a sense of presence, and the sound heard by the user will have a less layered sense to affect the viewing quality.

The invention provides a display device and a driving method thereof, which can use a corresponding sound emitting element on each display unit in a display panel to sound, thereby improving a user's sense of presence and viewing quality when watching.

The display device of the present invention includes a display panel, a sound generating module, an image analysis circuit, and a sound driving circuit. The display panel has a plurality of display units. The sound generating module has a plurality of sound generating elements, which are arranged corresponding to at least one to one with the display unit. The image analysis circuit receives an image signal, analyzes the position of the sounding object in the display screen, and provides sounding information correspondingly. The sound driving circuit is coupled to the sound generating module and the image analysis circuit, so as to determine the first display unit of the display unit overlapping the sounding object according to the sounding information, and adjust the loudness of the sounding element corresponding to the first display unit.

In the driving method of the sound generating module of the present invention, the sound generating module has a plurality of sound generating elements, and the sound generating elements are correspondingly arranged at least one to one with a plurality of display units of the display panel. The driving method includes: analyzing the display screen through an image analysis circuit The position of the sounding object is provided and the sounding information is provided correspondingly; the first display unit of the display unit overlapping with the sounding object is judged by the sound driving circuit according to the sounding information, and the loudness of the sounding element corresponding to the first display unit is adjusted.

Based on the above, the display device of the present invention can sound through the sound corresponding to the display screen through a plurality of sound emitting elements in the display panel and according to the status of different loudness distribution. In this way, the display device of the present invention can improve the sense of presence and viewing quality when the user is watching.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

In the drawings, the thicknesses of layers, films, panels, regions, etc. are exaggerated for clarity. Throughout the description, the same reference numerals denote the same elements.

As used herein, “connection” may refer to a physical and / or electrical connection (coupling), and an electrical connection (coupling) may have intermediate components.

As used in this article, "Sound Loudness" refers to the perceived amount of sound. For example, the sound intensity felt by the user's ear. The sound contains at least one aspect, which is the Sound Loudness Level. The unit is phon, the other is sound, and the unit is Sone. In addition, the unit of the perceptual quantity covered is not limited to phon, Sone, or decibel, and the other perceptual quantities referring to the sound size should also be covered by the present invention.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable deviation range of a particular value determined by one of ordinary skill in the art, taking into account the measurements in question and A specific number of measurement-related errors (ie, limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%. Moreover, "about", "approximately" or "substantially" as used herein may select a more acceptable range of deviations or standard deviations based on optical properties, etching properties, or other properties, and all of them may be applied without one standard deviation. nature.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the related art and the present invention, and will not be interpreted as idealized or excessive Formal meaning unless explicitly defined as such in this article.

In addition, the same or similar reference numbers indicate the same or similar elements, which will not be described in detail in the following paragraphs.

FIG. 1 is a schematic diagram of a display device according to an embodiment of the invention. Referring to FIG. 1, the display device 100 includes a display panel 110, a sound generating module SM, an image analysis circuit 120, a sound driving circuit 130, a timing controller 140, a source driver 150 and a gate driver 160. In this embodiment, the display panel 110 has a plurality of display units DA11-DANM, where the display units DA11-DANM are arranged in a matrix manner, and N and M are positive integers. The sound emitting module SM has a plurality of sound emitting elements SC11 to SCNM, wherein the sound emitting elements SC11 to SCNM are arranged in a matrix manner, and each sound emitting element SC11 to SCNM corresponds to each display unit DA11 to DANM in at least one-to-one correspondence. Way to configure. For example, the sound generating element SC11 may be configured to overlap the display unit DA11, the sound generating element SC21 may be configured to overlap the display unit DA21, and the rest may be deduced by analogy, but the present invention is not limited thereto.

Next, in this embodiment, the image analysis circuit 120 may receive the image signal IM, and the image analysis circuit 120 is configured to analyze the position of at least one sounding object in the display frame. Then, the image analysis circuit 120 may provide the sounding information VI correspondingly according to the position of the sounding object. The above-mentioned sounding object may be a sound source object in the display screen (for example, a horn, a mouth, a car, a blasting point, or other suitable source objects, or a combination of the foregoing source objects, but the present invention is not limited thereto) .

On the other hand, in this embodiment, the sound driving circuit 130 is coupled between the sound generating module SM and the image analysis circuit 120 to receive the sound signal VS and the sound information VI. Wherein, the sound driving circuit 130 is configured to determine at least one first display unit of the plurality of display units DA11 to DANM overlapped by the at least one sounding object according to the sounding information VI. In addition, the display device 100 may use the sound driving circuit 130 to increase or adjust the sounding loudness of the sounding elements SC11 to SCNM corresponding to the first display unit. According to the size of the sounding object, the first display unit is at least one of a plurality of display units DA11 to DAMM. Further, each of the display units DA11-DANM in the embodiment of the present invention corresponds to a plurality of pixels arranged in an array, and the display units DA11-DANM do not overlap each other. In addition, the sound emitting elements SC11 to SCNM respectively corresponding to (or overlapping with) each of the display units DA11 to DANM can respond to sounding the sounding objects in the display screen.

In addition, in this embodiment, the timing controller 140 is coupled to the image analysis circuit 120 to receive the image signal IM, and the timing controller 140 can generate corresponding control signals CS1 and CS2 according to the image signal IM. . The gate driver 160 is coupled between the display panel 110 and the timing controller 140 to receive the control signal CS1, and the gate driver 160 can be controlled by the timing controller 140 to transmit multiple gate signals G1 to GN to the display. Panel 110. In addition, the source driver 150 of this embodiment is coupled between the display panel 110 and the timing controller 140 to receive the control signal CS2, and the source driver 150 can also be controlled by the timing controller 140 to transmit multiple data. The voltages S1 to SN are applied to the display panel 110. In the embodiment of the present invention, those skilled in the art can determine the number of the display units DA11-DANM and the sound emitting elements SC11-SCNM in the display panel 110 according to the design requirements of the display panel 110.

FIG. 2 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to an embodiment of the present invention. Please refer to FIG. 1 and FIG. 2 at the same time. In FIG. 2, the squares in the display panel 210 represent the display units DA11 to DANM in the display panel 110 and are arranged in a 4 × 6 matrix as an example. However, the embodiment of the present invention Not limited to this. In this embodiment, when a single sounding object SO42 appears in the display screen, since the sounding object SO42 only overlaps with the display unit DA42 (corresponding to the first display area), the sounding loudness of the entire sounding module SM can be concentrated on the display unit DA42. Overlapping sounding elements (such as SC42), that is, sounding elements that overlap the display unit DA42 (such as SC42) are vocalized separately, and overlap with other (such as the display unit or table indicated by the right diagonal line in the display panel 210) Sounding components (such as SC43) are silent. Viewed from another aspect, in this embodiment, the sounding loudness of the sounding element corresponding to the first display unit (ie, the display unit DA42) may be substantially equal to the total loudness of the sounding module SM.

In another embodiment, the display unit DA42 can be used as the main sounding position of the sound generating module SM, and the other display unit DA43 can be used as the auxiliary sounding position of the sound generating module SM. On the other hand, the sound loudness of a sounding element (such as SC42) corresponding to (or overlapping) the display unit DA42 is greater than the sound loudness of a sounding element (such as SC43) corresponding to (or overlapping) the other display unit DA43. . That is, the sounding loudness of the sounding element (such as SC42) at the main sounding position may be greater than the sounding loudness of the sounding element (such as SC43) at the auxiliary sounding position.

For example, if the sounding loudness of a sounding element (such as SC42) overlapping the display unit DA42 accounts for about 60% of the total loudness of the sounding module SM, it means that the sounding element (such as SC43) overlapping with the other display unit DA43 The vocal loudness accounts for about 40% of the total loudness of the vocal module SM. In addition, about 40% of the total loudness of the sound generating module SM can be substantially evenly distributed to sound generating elements (such as SC43) overlapping with other display units DA43, that is, other sound generating elements (such as SC43) overlapping with other display units DA43. ) The loudness is essentially equal. The sum of the sounding loudness of the sounding element (such as SC42) overlapping the display unit DA42 and the sounding element (such as SC43) overlapping the other display unit DA43 is substantially equal to the total loudness of the sounding module SM. In addition, in the embodiment of the present invention, the loudness ratio allocated to each display unit (such as DA11 to DANM) can be adjusted according to the display screen of the display panel 210, but the embodiment of the present invention is not limited to the loudness allocation ratio exemplified above.

It should be noted that, in order to avoid that the content of the figure is too complicated, in the display panel 210 of FIG. 2, only two squares indicated by diagonally right lines are used to represent the corresponding display unit DA43 and sound generating element SC43. That is, each of the squares indicated by diagonal right lines in the display panel 210 may correspond to the display unit DA43 and the sound emitting element SC43, respectively, but the embodiment of the present invention is not limited to the display unit and the sound emitting element exemplified above.

FIG. 3 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to another embodiment of the present invention. Please refer to FIG. 1 and FIG. 3 at the same time. The squares in the display panel 310 indicate the display units DA11 to DANM in the display panel 110 and are arranged in a 4 × 6 matrix, but the embodiment of the present invention is not limited thereto. For example, when a single sounding object SO42 appears in the display screen, since the sounding object SO42 only overlaps with the display unit DA42 (corresponding to the first display area), the display unit DA42 can be used as the main sounding position of the sounding module SM. In addition, other display units DA44 (such as a display unit or a table indicated by a diagonally oblique line in the display panel 310) and display unit DA45 (such as a display unit or a table indicated by a diagonally oblique line in the display panel 310) can be used as sound generating modules. SM's auxiliary sounding position.

In this embodiment, when the display unit DA42 is used as the main sounding position of the display screen, the sounding loudness of the sounding elements (such as SC11 to SCNM) of the sounding module SM may gradually decrease from the main sounding position to the auxiliary sounding position. Viewed from the other direction, the sounding loudness of the corresponding (or overlapping) sounding element (such as SC42) of the first display unit (such as display unit DA42) may be greater than that of a plurality of first adjacent display units (such as display unit DA42). The sum of the sounding loudness of the sounding elements (such as SC44) corresponding to (or overlapping) the two display units DA44. In addition, the sum of the sounding loudness of the sounding element (such as SC44) corresponding to (or overlapping) the second display unit DA44 may be larger than other sounding elements (such as SC45) corresponding to (or overlapping) the other display units DA45 in the sound module SM. The total vocal loudness. Wherein, the loudness of the sounding element (such as SC44) corresponding to (or overlapping) the second display unit DA44 is substantially equal, and the loudness of the other sounding element (such as SC45) corresponding to (or overlapping) the other display unit DA45 is substantially equal. In this embodiment, the loudness emitted by the sound emitting elements (such as SC42, SC44, and SC45) corresponding to all the display units (such as DA42, DA44, and DA45) in the display panel 310 is substantially equal to the total loudness of the sound module SM.

It should be noted that, in order to avoid the graphic content being too complicated, in the display panel 310 of FIG. 3, only a square box indicated by a diagonal right line is used to represent the corresponding display unit DA44 and sound generating element SC44. That is, each of the squares indicated by diagonal right lines in the display panel 310 may correspond to the display unit DA44 and the sound emitting element SC44, respectively. Similarly, in the display panel 310, the display unit DA45 and the sound generating element SC45 corresponding to it are represented by a square indicated by an oblique left line. That is, each of the squares indicated by the oblique left line in the display panel 310 may correspond to the display unit DA45 and the sound generating element SC45, respectively, but the embodiment of the present invention is not limited to the display unit and the sound generating element exemplified above.

FIG. 4 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to still another embodiment of the present invention. Please refer to FIGS. 1 and 4 at the same time. The squares in the display panel 410 indicate the display units DA11 to DANM in the display panel 110 and are arranged in a 4 × 6 matrix, but the embodiment of the present invention is not limited thereto. In this embodiment, when a single sounding object SO43 appears in the display screen, since the sounding object SO43 overlaps with the display units DA42_1 to DA42_4 (corresponding to the first display area), the sounding loudness of the entire sounding module SM can be concentrated on the display unit. DA42_1 to DA42_4, so that the sound emitting elements (such as SC42_1 to SC42_4) corresponding to the display units DA42_1 to DA42_4 can simultaneously sound. Wherein, in this embodiment, the sounding radiances emitted by sounding elements (such as SC42_1 to SC42_4) corresponding to the display units DA42_1 to DA42_4 are substantially equal. In this case, in the display panel 410, no other display unit DA43 (such as a display unit or a table indicated by a diagonal right line in the display panel 410) will perform a sounding action. Viewed from another direction, in this embodiment, the total loudness of the sound emitting elements (such as SC42_1 to SC42_4) corresponding to the display units DA42_1 to DA42_4 may be substantially equal to the total loudness of the sound module SM. In addition, the total loudness of the sound emitting module SM can be substantially evenly distributed to each of the sound emitting elements (such as SC42_1 to SC42_4) corresponding to the display units DA42_1 to DA42_4.

In some cases, the display units DA42_1 to DA42_4 in this embodiment may be used as the main sounding positions of the sounding module SM. In addition, the sound emitting element (such as SC43) corresponding to (or overlapping with) the other display unit DA43 can be used as an auxiliary sounding position of the sound emitting module SM. The sounding loudness of the sounding element (such as SC42_1 to SC42_4) at the main sounding position may be greater than the sounding loudness of the sounding element (such as SC43) at the auxiliary sounding position. In this case, the loudness emitted by the sound emitting elements (such as SC42_1 to SC42_4) overlapping the display units DA42_1 to DA42_4 are substantially equal, and the sound emitting elements (such as SC43) corresponding to the other multiple display units DA43 are substantially equal. The loudness is also substantially equal.

In another embodiment, the sound emitting elements (such as SC42_1 to SC42_4) overlapping the display units DA42_1 to DA42_4 can set the sounding loudness according to the area ratio of the sounding object SO43 in the display units DA42_1 to DA42_4, respectively. For example, a sounding element (such as SC42_1) overlapping the display unit DA42_1 is set according to the area ratio of the sounding object SO43 located in the display unit DA42_1; a sounding element (eg SC42_2) overlapping the display unit DA42_2 is located according to the sounding object SO43 The area ratio in the display unit DA42_2 is used to set the vocal loudness, and the rest is analogized. For example, when the display unit DA42_2 where the sounding object SO43 is located occupies a larger area ratio than the display unit DA42_1, the sounding loudness of the sounding element (such as SC42_2) corresponding to the display unit DA42_2 may be greater than the sounding element corresponding to the display unit DA42_1. (Such as SC42_1). In contrast, when the display unit DA42_4 where the sounding object SO43 is located occupies a larger area ratio than the display unit DA42_3, the sounding loudness of the sounding element (such as SC42_4) corresponding to the display unit DA42_4 may be greater than the sounding element (42 Such as SC42_3) vocal loudness.

It should be noted that, in order to avoid that the content of the figure is too complicated, in the display panel 410 in FIG. 4, only a grid indicated by a diagonally right line is used to represent the corresponding display unit DA43 and sound generating element SC43. That is, each of the squares indicated by diagonally right lines in the display panel 410 may correspond to the display unit DA43 and the sound generating element SC43, respectively, but the embodiment of the present invention is not limited to the display unit and sound generating element exemplified above.

FIG. 5 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to another embodiment of the present invention. 1 and FIG. 5 at the same time, the squares in the display panel 510 indicate the display units DA11 to DANM in the display panel 110 and are arranged in a 4 × 6 matrix, but the embodiment of the present invention is not limited thereto. When a single sounding object SO42 appears in the display screen, since the sounding object SO42 overlaps with the display units DA42_1 to DA42_4 (corresponding to the first display area), the display units DA42_1 to DA42_4 can be used as the main sounding position of the sounding module SM. In addition, other display units DA44 (such as a display unit or a table indicated by a diagonally oblique line in the display panel 510) and display unit DA45 (such as a display unit or a table indicated by a diagonally oblique line in the display panel 510) can be used as a sound generating module. SM's auxiliary sounding position.

For example, in this embodiment, when the display units DA42_1 to DA42_4 are used as the main sounding position of the display screen, the sounding loudness of the sounding elements (such as SC11 to SCNM) of the sounding module SM may gradually be changed from the main sounding position to the auxiliary sounding position. The direction of the position decreases. Viewed from another aspect, the sounding loudness of the corresponding (or overlapping) sounding elements (such as SC42_1 ~ SC42_4) of the first display unit (such as display units DA42_1 ~ DA42_4) may be greater than that of the adjacent first display unit (such as display units DA42_1 ~ DA42_4) The sum of the sounding loudness of the sounding elements (such as SC44) corresponding to (or overlapping) the plurality of second display units DA44. In addition, the sum of the sounding loudness of the sounding element (such as SC44) corresponding to (or overlapping) the second display unit DA44 may be larger than other sounding elements (such as SC45) corresponding to (or overlapping) the other display units DA45 in the sound module SM. The total vocal loudness. Wherein, the loudness of the sounding element (such as SC44) corresponding to (or overlapping) the second display unit DA44 is substantially equal, and the loudness of the other sounding element (such as SC45) corresponding to (or overlapping) the other display unit DA45 is substantially equal. In this embodiment, the loudness emitted by the sound emitting elements (such as DA42_1 ~ DA42_4) corresponding to all the display units (such as DA42_1 ~ DA42_4, DA44, and DA45) in the display panel 510 is substantially equal to the total loudness of the sound module SM.

It should be noted that, in order to avoid that the content of the figure is too complicated, in the display panel 510 of FIG. 5, only a square indicated by a diagonal right line is used to indicate the corresponding display unit DA44 and sound generating element SC44. That is, each of the squares indicated by diagonal right lines in the display panel 510 may correspond to the display unit DA44 and the sound emitting element SC44, respectively. Similarly, in the display panel 510, the display unit DA45 and the sound generating element SC45 corresponding to the display unit 510 are represented by a square indicated by an oblique left line. That is, each of the squares indicated by the oblique lines in the display panel 510 may correspond to the display unit DA45 and the sound generating element SC45, respectively, but the embodiment of the present invention is not limited to the display unit and the sound generating element exemplified above.

FIG. 6 is a schematic diagram illustrating the distribution of the sounding loudness of two sounding objects according to an embodiment of the present invention. 1 and FIG. 6 at the same time, the squares in the display panel 610 indicate the display units DA11 to DANM in the display panel 110 and are arranged in a 4 × 6 matrix, but the embodiment of the present invention is not limited thereto. In this embodiment, when two sounding objects SO51 and sounding objects SO52 appear in the display screen, the sounding objects SO51 overlap the display units DA51_1 to DA51_4, and the sounding objects SO52 overlap the display units DA52_1 to DA52_4. Therefore, the sounding loudness of the entire sounding module SM can be respectively concentrated on the display units DA51_1 to DA51_4 and the display units DA52_1 to DA52_4, so that the sounding elements (such as SC51_1 to SC51_4) corresponding to the display units DA51_1 to DA51_4 and the display units DA52_1 to DA52_4 are The corresponding sounding elements (such as SC52_1 ~ SC52_4) can sound at the same time. Viewed from another aspect, in this embodiment, the sounding objects (such as SO51, SO52) in the display screen can be used to sound across regions.

In this case, the total loudness of the sound emitting module SM of this embodiment may be substantially evenly distributed or allocated to the sound emitting elements (such as SC51_1 to SC51_4) corresponding to (or overlapping) the display units DA51_1 to DA51_4 and the display unit according to a proportional relationship. DA52_1 ～ DA52_4 correspond to (or overlap) the sound emitting components (such as SC52_1 ～ SC52_4). For example, the sound emitting elements (such as SC51_1 to SC51_4) corresponding to the display units DA51_1 to DA51_4 account for A% of the total loudness of the sound module SM. In addition, the sound emitting elements (such as SC52_1 to SC52_4) corresponding to the display units DA52_1 to DA52_4 account for B% of the total loudness of the sound module SM. Among them, A may be substantially equal to or not equal to B, and A may be greater than or less than B. In addition, the sum of the sounding loudness of the sounding elements (eg SC51_1 to SC51_4) corresponding to the display units DA51_1 to DA51_4 and the sounding elements (eg SC52_1 to SC52_4) of the display units DA52_1 to DA52_4 may be substantially equal to the total loudness of the sounding module SM.

Further, the sound emitting elements (such as SC51_1 to SC51_4) overlapping the display units DA51_1 to DA51_4 can set the sounding loudness according to the area ratio of the sounding object SO51 located in the display units DA51_1 to DA51_4, respectively. On the other hand, A% of the total loudness of the sound module SM can be allocated to the corresponding sound components (such as SC51_1 to SC51_4) according to the area ratio in the display units DA51_1 to DA51_4. Further, A% is related to the area of the sounding object SO51 and the area of the sounding object SO52. For example, A% = area of sounding object SO51 / (area of sounding object SO51 + area of sounding object SO52).

In contrast, the sound emitting elements (such as SC52_1 to SC52_4) overlapping the display units DA52_1 to DA52_4 can set the sound loudness according to the area ratio of the sounding object SO52 in the display units DA52_1 to DA52_4, respectively. On the other hand, B% of the total loudness of the sound module SM can be allocated to the corresponding sound components (such as SC52_1 to SC52_4) according to the area ratio in the display units DA52_1 to DA52_4. In addition, B% is related to the area of the sounding object SO51 and the area of the sounding object SO52. For example, B% = area of sounding object SO52 / (area of sounding object SO51 + area of sounding object SO52).

FIG. 7 is a schematic diagram illustrating the distribution of sounding loudness when the sounding object is moved to different display units according to an embodiment of the present invention. Please refer to FIG. 1 and FIG. 7 at the same time. The squares in the display panel 710 indicate the display units DA11 to DANM in the display panel 110 and are arranged in a 4 × 6 matrix, but the embodiment of the present invention is not limited thereto. When a single sounding object SO61 appears in the display screen, since the sounding object S61 only overlaps with the display unit DA61 (corresponding to the first display area), the sounding loudness of the entire sounding module SM can be concentrated on the sounding elements overlapping the display unit DA61 (such as SC61), that is, the sound generating element (such as SC61) overlapping the display unit DA61 is used for sound generation alone. Furthermore, when the sounding object SO61 appearing in the display screen is moved from the sounding element (such as SC61) superimposed on the display unit DA61 to the sounding element (such as SC62) superimposed on the display unit DA62, this embodiment may be based on the sound produced in the display screen. The state of the object SO62 on the display unit DA62 determines the allocation of the utterance loudness, and performs calculations according to the above-mentioned embodiments of FIGS. 2 to 6.

In this embodiment, the display frame can be detected at a rate of N display frames, where N is a positive integer. For example, one screen analysis can be performed on two display screens (N = 2), or one screen analysis can be performed on three display screens (N = 3), which depends on user settings or circuit design. Embodiments of the present invention Not limited to this.

FIG. 8 is a flowchart of a driving method of a sound generating module according to an embodiment of the present invention. Referring to FIG. 8, in this embodiment, the sound emitting module has a plurality of sound emitting elements, and the sound emitting elements are correspondingly arranged one-to-one with a plurality of display units of the display panel. In step S810, the position of the sounding object in the display screen can be analyzed through the image analysis circuit, and sounding information is provided correspondingly. In step S820, the display device can determine the first display unit of the display unit that overlaps with the sounding object according to the sounding information through the sound driving circuit, and adjust (for example, increase) the loudness of the sounding element corresponding to the first display unit.

The implementation details of each step have been described in detail in the foregoing embodiments and implementation manners, and are not repeated here.

In summary, the display device of the present invention can use the sound emitting objects in the display screen to sound through a plurality of sound emitting elements in the display panel. In addition, the display panel of the present invention can determine the distribution of sound to each sounding element according to the sounding position of the sounding object. In this way, the display device of the present invention can improve the sense of presence and viewing quality when the user is watching.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

100‧‧‧ display device

110, 210, 310, 410, 510, 610, 710‧‧‧ display panel

120‧‧‧Image analysis circuit

130‧‧‧sound drive circuit

140‧‧‧sequence controller

150‧‧‧Source Driver

160‧‧‧Gate driver

SM‧‧‧ Sound Module

DA11 ～ DANM‧‧‧ Display Unit

SC11 ～ SCNM‧‧‧ sound generator

SO42, SO43, SO51, SO52, SO61, SO62 ‧‧‧ sounding objects

IM‧‧‧Image signal

VI‧‧‧ Voice information

VS‧‧‧Sound signal

CS1, CS2‧‧‧Control signals

G1 ～ GN‧‧‧Gate signal

S1 ～ SN‧‧‧Data voltage

S810 ～ S820‧‧‧Drive steps of display device

FIG. 1 is a schematic diagram of a display device according to an embodiment of the invention. FIG. 2 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to an embodiment of the present invention. FIG. 3 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to another embodiment of the present invention. FIG. 4 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to still another embodiment of the present invention. FIG. 5 is a schematic diagram illustrating the distribution of the sounding loudness of the sounding object on the display unit according to another embodiment of the present invention. FIG. 6 is a schematic diagram illustrating the distribution of the sounding loudness of two sounding objects according to an embodiment of the present invention. FIG. 7 is a schematic diagram illustrating the distribution of sounding loudness when the sounding object is moved to different display units according to an embodiment of the present invention. FIG. 8 is a flowchart of a driving method of a sound generating module according to an embodiment of the present invention.

Claims (20)

A display device includes: a display panel having a plurality of display units; a sound emitting module having a plurality of sound emitting elements arranged at least one to one corresponding to the display units; an image analysis circuit receiving an image signal, It is used to analyze the position of at least one sounding object in a display screen and provide sounding information correspondingly; and a sound driving circuit coupled to the sounding module and the image analysis circuit to judge the sounding information and the at least one At least one first display unit of the display units where a sounding object overlaps, and the loudness of the sounding element corresponding to the at least one first display unit is adjusted. The display device according to item 1 of the scope of patent application, wherein the loudness of the sound generating element corresponding to the at least one first display unit is equal to a total loudness of the sound generating module. The display device according to item 2 of the scope of patent application, wherein when the number of the at least one first display unit is greater than two, the loudness of the sound emitting elements corresponding to the first display units is equal. The display device according to item 2 of the scope of patent application, wherein when the number of the at least one first display unit is greater than two, the sound emitting elements corresponding to the first display units are respectively based on the at least one sounding object occupying the The area ratio of these first display units is used to set the loudness. The display device according to item 1 of the scope of patent application, wherein the loudness of the sound emitting elements corresponding to one of the at least one first display unit is greater than the sum of the loudness of the other sound emitting elements in the sound emitting module, and the at least one The loudness of the sound generating element corresponding to the first display unit is smaller than a total loudness of the sound generating module. The display device according to item 5 of the scope of patent application, wherein when the number of the at least one first display unit is greater than two, the loudness of the sound emitting elements corresponding to the first display units is equal, and the loudness of the other sound emitting elements is equal. equal. The display device according to item 5 of the scope of patent application, wherein when the number of the at least one first display unit is greater than two, the sound emitting elements corresponding to the first display units are located corresponding to the first displays respectively according to the sounding object. The area ratio in the unit is used to set the loudness, and the loudness of other sounding elements is equal. The display device according to item 1 of the scope of patent application, wherein the sum of the loudness of the sound emitting elements corresponding to the plurality of second display units adjacent to the at least one first display unit is smaller than the The sum of loudness, but greater than the sum of the loudness of other sound emitting components in the sound module. The display device according to item 8 of the scope of patent application, wherein when the number of the at least one first display unit is greater than two, the loudness of the sound emitting elements corresponding to the first display units is equal, and the second display units correspond to The loudness of the sounding elements is equal, and the loudness of other sounding elements in the sounding module is equal. The display device according to item 8 of the scope of patent application, wherein when the number of the at least one first display unit is greater than 2, the sound emitting elements corresponding to the first display units are respectively based on the area of the sound emitting object located in the corresponding display unit. To set the loudness, the loudness of the sound emitting elements corresponding to the second display units is equal, and the loudness of other sound emitting elements in the sound emitting module is the same. A driving method of a sound emitting module, the sound emitting module having a plurality of sound emitting elements, the sound emitting elements and a plurality of display units of a display panel correspondingly arranged at least one to one, the driving method includes: analyzing through an image analysis circuit A display position of at least one sounding object and correspondingly providing a sounding information; and at least one first display in the display units overlapping with the at least one sounding object according to the sounding information by a sound driving circuit Unit, and adjust the loudness of the sounding element corresponding to the at least one first display unit. The driving method of the sound generating module according to item 11 of the scope of patent application, wherein the loudness of the sound generating element corresponding to the at least one first display unit is equal to a total loudness of the sound generating module. The driving method of the sound generating module according to item 12 of the scope of patent application, further comprising: when the number of the at least one first display unit is greater than two, the loudness of the sound generating elements corresponding to the first display units is equal. The driving method of the sound generating module according to item 12 of the scope of patent application, further comprising: when the number of the at least one first display unit is greater than 2, the sound generating elements corresponding to the first display units are respectively based on the at least The loudness is set by the ratio of the area of a sounding object in the display units. The driving method of the sound emitting module according to item 11 of the scope of the patent application, wherein the sum of the loudness of the sound emitting elements corresponding to the at least one first display unit is greater than the sum of the loudness of other sound emitting elements in the sound emitting module, and the at least one The loudness of the sound generating element corresponding to a first display unit is smaller than a total loudness of the sound generating module. The method for driving a sound generating module according to item 15 of the scope of patent application, further comprising: when the number of the at least one first display unit is greater than 2, the loudness of the sound generating elements corresponding to the first display units are equal, and other The loudness of the sounding elements is equal. The method for driving a sound generating module according to item 15 of the scope of patent application, further comprising: when the number of the at least one first display unit is greater than 2, the sound generating elements corresponding to the first display units are respectively located according to the sounding object. The loudness is set corresponding to the area ratio in the display unit, and the loudness of other sound emitting elements is equal. The driving method of the sound generating module according to item 11 of the scope of patent application, wherein the sum of the loudness of the sound generating elements corresponding to the plurality of second display units adjacent to the at least one first display unit is smaller than that of the at least one first display unit. The sum of the loudness of the sound emitting elements of the sound emitting element is greater than the sum of the loudness of other sound emitting elements in the sound emitting module. The driving method of the sound generating module according to item 18 of the scope of patent application, further comprising: when the number of the at least one first display unit is greater than 2, the loudness of the sound generating elements corresponding to the first display units is equal, and The loudness of the sound emitting elements corresponding to the second display unit is equal, and the loudness of the other sound emitting elements is equal. The method for driving a sound generating module according to item 18 of the scope of patent application, further comprising: when the number of the at least one first display unit is greater than 2, the sound generating elements corresponding to the first display units are respectively located according to the sounding object. The loudness is set corresponding to the area ratio in the display unit. The loudness of the sound emitting elements corresponding to the second display units is equal, and the loudness of the other sound emitting elements is equal.