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CN110047392A - A kind of display device - Google Patents

A kind of display device Download PDF

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Publication number
CN110047392A
CN110047392A CN201910202493.XA CN201910202493A CN110047392A CN 110047392 A CN110047392 A CN 110047392A CN 201910202493 A CN201910202493 A CN 201910202493A CN 110047392 A CN110047392 A CN 110047392A
Authority
CN
China
Prior art keywords
driver
display panel
display device
sound
exciter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910202493.XA
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Chinese (zh)
Other versions
CN110047392B (en
Inventor
周永祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN201910202493.XA priority Critical patent/CN110047392B/en
Publication of CN110047392A publication Critical patent/CN110047392A/en
Application granted granted Critical
Publication of CN110047392B publication Critical patent/CN110047392B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezoelectric transducers; Electrostrictive transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2207/00Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
    • H04R2207/021Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

A kind of display device, including mainboard, display panel, center and the sounding device and vibrating reed that are set to the display panel back, the sounding device includes multiple sound insulating members around at least one Hi-Mid driver, at least one bass exciter and the driver, the Hi-Mid driver generates Hi-Mid, the bass exciter generates bass, the vibrating reed amplifies the vibration that the driver generates, and finally drives the display panel to vibrate, to issue sound wave;The utility model has the advantages that by the way that Hi-Mid driver and bass exciter is respectively set, improve the effect of panel vibration at low frequency, realize the three-dimensional sounding of panel vibration, and sound insulating member is set in three face of driver, improve the directionality of sound, the privacy of user is improved simultaneously, present invention eliminates top earpieces, improve screen accounting.

Description

A kind of display device
Technical field
The present invention relates to field of display technology more particularly to a kind of display devices.
Background technique
With the continuous development of technology, requirement of the people to electronic product is also higher and higher.Screen has become comprehensively now One popular trend, and the two large problems for hindering Mobile phone screen accounting to develop are taken the photograph from the earpiece at traditional Home key and top As the necessary component such as head sensor.Wherein the problem of Home key, is replaced by gesture operation nowadays, and fingerprint can also be put into Below the screen or fuselage back side.In order to cancel the earpiece at top, screen vocal skill comes into being.
Easily fabricated since the structure of piezoelectric ceramics element excitation device is simple, precision is high, the advantages such as low energy consumption, attracts Extensive concern and research, but present piezo-electric ceramic sounding technology is not mature enough, there are many problems, for example, now Piezo-electric ceramic sounding low-frequency effect it is very poor, and sound directivity is bad, leakage is easy, so that privacy is unable to get effectively Ground guarantee.
The display device with good low-frequency effect and privacy that therefore, it is necessary to a kind of.
Summary of the invention
The present invention provides a kind of display device, by be respectively set Hi-Mid driver and bass exciter and it is multiple every The problem of sound part, poor to solve low-frequency effect in the prior art, sound directivity is bad, is easy leakage privacy.
To solve the above problems, technical solution provided by the invention is as follows:
The present invention provides a kind of display device, comprising: display panel, and fit in the sounding at the display panel back Device;
The sounding device includes:
Exciter assembly, the exciter assembly include at least one Hi-Mid driver and the excitation of at least one bass Device, the Hi-Mid driver and the bass exciter are arranged side by side at the top of the display device;
Sound insulation chamber, the sound insulation chamber are that three bread enclose a face hatch frame, and the opening direction is filled towards the display Top set portion, the sound insulation chamber quantity are identical as the driver quantity, wherein a driver is correspondingly arranged in an institute It is intracavitary to state sound insulation.
According to one preferred embodiment of the present invention, the driver is electrically connected with mainboard, in addition, each sound insulation chamber includes At least three sound insulating members, and thickness of the sound insulating member on the driver to the mainboard direction be greater than the driver with Spacing between the mainboard.
According to one preferred embodiment of the present invention, the driver is piezoelectric material, and the piezoelectric material is following any material One or more kinds of combinations of material: lead zirconate titanate, aluminium nitride, Kynoar and Kynoar and trifluoro-ethylene Copolymer.
According to one preferred embodiment of the present invention, a vibration is provided between the display panel and the sounding device Piece, the vibrating reed is provided with adhesive on one side, and is adhesively joined with the display panel, and another side is filled towards the sounding It sets.
According to one preferred embodiment of the present invention, the vibrating reed and the driver in the sounding device and described Sound insulating member is in contact, and the sound insulating member generates compressive deformation because of pressure of the vibrating reed to it.
According to one preferred embodiment of the present invention, center, the center are provided between the display panel and the mainboard The display panel touching position is provided with foam, and the foam protects the display panel not to be damaged.
According to one preferred embodiment of the present invention, it is provided with gap between the sounding device and the center, so that described Driver does not drive the center to vibrate together in vibration processes.
According to one preferred embodiment of the present invention, the driver includes that there are two described in the Hi-Mid driver and one Bass exciter, and the bass exciter is located at centre, two Hi-Mid drivers are located at both sides.
According to one preferred embodiment of the present invention, three drivers respectively correspond that be set to three sound insulations intracavitary, And the opening direction of three sound insulation chambers is towards the display device top.
According to one preferred embodiment of the present invention, the display panel is OLED display panel or LCD display panel.
The invention has the benefit that improving panel vibration by the way that Hi-Mid driver and bass exciter is respectively set Effect at low frequency realizes the three-dimensional sounding of panel vibration, and sound insulating member is arranged in three face of driver, improves sound Directionality, while the privacy of user is improved, present invention eliminates top earpieces, improve screen accounting.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these Figure obtains other attached drawings.
Fig. 1 is the display device of that present invention structural schematic diagram.
Fig. 2 is the plane distribution schematic diagram of driver and sound insulating member in one embodiment of the present invention.
Fig. 3 is the side view of sound insulating member of the present invention.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side] Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The present invention is very poor for the low-frequency effect of piezo-electric ceramic sounding in present screen vocal skill, and audio direction Property it is bad, be easy leakage the technical issues of, the present invention can solve the problem.
It include mainboard 101, display panel 105 and center 103 as shown in Figure 1, the present invention provides a kind of display device, The mainboard 101 and the display panel 105 are oppositely arranged, and the center is located at the mainboard 101 and the display panel 105 Between, and it is set to surrounding, centre forms a cavity, and the center 103 is in contact with the mainboard 101, with the display surface One foam 104 of place setting that plate 101 is in contact, in vibration processes, the foam 104 can protect the display panel 105, prevent the display panel 105 from generating rupture in collision process with the center 103.
Preferably, the display panel 101 is OLED display panel or LCD display panel, and wherein LCD display panel is again It may include the different structures such as OGS, on cell and in cell.
In the cavity, i.e., described 105 back of display panel is provided with sounding device 106 and vibrating reed 107, and described Sounding device 106 is electrically connected with the mainboard 101, and the vibrating reed 107 is set to the sounding device 106 and the display surface Between plate 105.
The sounding device 106 includes at least two piezoelectric actuators, and identical with the piezoelectric actuator quantity Sound insulation chamber, wherein the driver includes at least one Hi-Mid driver and at least one bass exciter, the sound insulation chamber A face hatch frame is enclosed for three bread, and the opening direction, towards the display device top, the opening direction is transmitting The direction of sound wave.
Wherein, a driver is correspondingly arranged in that the sound insulation is intracavitary, and each sound insulation chamber is by least three A sound insulating member is constituted, and thickness of the sound insulating member on the driver to 101 direction of mainboard is greater than the driver With the spacing between the mainboard 101.
In addition, the sounding device 106 and the vibrating reed 107 are located at the top of the display device, to replace top Portion's earpiece.
The piezoelectric actuator is made using piezoelectric material, such as lead zirconate titanate PZT, aluminium nitride AlN, Kynoar PVDF Or the copolymer etc. to be made of Kynoar and trifluoro-ethylene, when applying alternating voltage, piezoelectric material can shake It is dynamic.
It is provided with vibrating reed 107 between the sounding device 106 and the display panel 105, in the vibrating reed 107 It is provided with adhesive 108 on one side, so that the vibrating reed 107 is adhesively joined with the display panel 105, the vibrating reed 107 Another side towards the sounding device 106, squeeze the sound insulating member and be in contact with the driver.
The vibrating reed 107 can amplify vibration caused by the driver, and pass to the display panel 105.
Preferably, the adhesive 108 can be double-sided adhesive.
In addition, being provided with gap 102 between the sounding device 106 and the center 103, the gap 102 makes institute State driver not will drive the center 103 and vibrates together during generating vibration, to reduce energy loss, be promoted Volume output, and improve discomfort when touching mobile phone.
To sum up, the driver in the sounding device 106 generates vibration, and will vibration by the vibrating reed 107 Amplification, finally drives the display panel 105 to vibrate, to issue sound wave, and is provided with three faces around the driver The sound insulating member for surrounding structure ensure that the directionality of sound transmitting, towards the top sounding of the display device.
As shown in Fig. 2, for the plane of driver and the sound insulating member described in one preferred embodiment of sounding device of the present invention Distribution map.
It include that there are three the drivers, and three drivers are arranged side by side in the mainboard in the sounding device 20 tops, wherein again including two Hi-Mid drivers and a bass exciter, two Hi-Mid drivers are located at two Side, the bass exciter are located at centre, i.e. first dirver 208 (Hi-Mid driver), bass exciter 209 and second Driver 210 (Hi-Mid driver).
The i.e. described first dirver 208 and second driver 210 generate Hi-Mid, and the bass exciter 209 produces Raw bass, so as to improve the problem of the low-frequency effect difference of branch conventional piezoelectric driver.
Meanwhile the left side of the first dirver 208 being provided with the first sound insulating member 201, in the first dirver 208 The second sound insulating member 202 is provided between the bass exciter 209, in the bass exciter 209 and second excitation It is provided with third sound insulating member 203 between device 210, is provided with the 4th sound insulating member 204 on the right of the third sound insulating member;In addition, It is provided with the 5th sound insulating member 205 between first sound insulating member 201 and second sound insulating member 202, in second sound insulation It is provided with the 6th sound insulating member 206 between part 202 and the third sound insulating member 203, in the third sound insulating member 203 and the described 4th The 7th sound insulating member 207 is provided between sound insulating member 204.
That is, first sound insulating member 201, second sound insulating member 202 and the 5th sound insulating member 205 constitute first every Sound chamber 211, and the first dirver 208 is located in the first sound insulation chamber 211, second sound insulating member 202, the third Sound insulating member 203 and the 6th sound insulating member 206 constitute the second sound insulation chamber 212, and the bass exciter 209 is located at described the In two sound insulation chambers 212, the third sound insulating member 203, the 4th sound insulating member 204 and the 7th sound insulating member 207 constitute the Three sound insulation chambers 213, and second driver 210 is located in the third sound insulation chamber 213, and the first sound insulation chamber 211, institute It states the second sound insulation chamber 212 and the third sound insulation chamber 213 is that three bread enclose a face hatch frame, the direction of the opening is to pass Pass the direction of sound wave, and the opening direction is towards the top of the display device.
The position that seven sound insulating members are in contact will squeezed tight reduced with increasing soundproof effect by the sound insulation The sound wave that other three directions of chamber pass.
210 respective three first dirver 208, the bass exciter 209 and second driver directions Obstructed by the sound insulating member, only the direction close to top is not provided with the sound insulating member, for transmit sound direction, so The sound interference between three drivers can be eliminated, realizes stereo, and makes sound that can not reveal biography from below Out, the loss for reducing volume improves the volume of output.
As shown in figure 3, being the side view of the sound insulating member 30, we can pass through the height H of the adjusting sound insulating member 30 The effect of sound insulation, and the volume of output are adjusted with width W, firstly, the height H of the sound insulating member in the uncompressed state is Greater than the spacing between the piezoelectric actuator and the mainboard, to realize good sealing effect.When the sound insulating member When 30 intrinsic height are higher, then compressed degree is bigger, to realize better seal effect.But when height H too Greatly, it will affect the output of sound, so that the volume of output is smaller.
Similarly, width W is also similar principle, smaller for the range of vibration when width W is bigger, thus soundproof effect It is just more preferable, but the volume exported is just smaller.
The parameter of optimal H and W can be selected according to required sound quality and volume.
By the way that Hi-Mid driver and bass exciter is respectively set, the effect of panel vibration at low frequency is improved, is realized The three-dimensional sounding of panel vibration, and sound insulating member is set in driver three face, the directionality of sound is improved, while improving use The privacy at family, present invention eliminates top earpieces, improve screen accounting.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention Decorations, therefore protection scope of the present invention subjects to the scope of the claims.

Claims (10)

1. a kind of display device characterized by comprising display panel, and fit in the sounding at the display panel back Device;
The sounding device includes:
Exciter assembly, the exciter assembly include at least one Hi-Mid driver and at least one bass exciter, institute It states Hi-Mid driver and the bass exciter is arranged side by side at the top of the display device;
Sound insulation chamber, the sound insulation chamber are that three bread enclose a face hatch frame, and the opening direction is towards the display device top Portion, the sound insulation chamber quantity are identical as the driver quantity, wherein a driver be correspondingly arranged in one described in every Sound is intracavitary.
2. display device according to claim 1, which is characterized in that the driver is electrically connected with mainboard, in addition, each The sound insulation chamber includes at least three sound insulating members, and thickness of the sound insulating member on the driver to the mainboard direction is big Spacing between the driver and the mainboard.
3. display device according to claim 1, which is characterized in that the driver is piezoelectric material, the piezoresistive material Material is one or more kinds of combinations of following any materials: lead zirconate titanate, aluminium nitride, Kynoar and polyvinylidene fluoride The copolymer of alkene and trifluoro-ethylene.
4. display device according to claim 1, which is characterized in that set between the display panel and the sounding device It is equipped with a vibrating reed, the vibrating reed is provided with adhesive on one side, and is adhesively joined with the display panel, another side direction The sounding device.
5. display device according to claim 4, which is characterized in that the vibrating reed with it is described in the sounding device Driver and the sound insulating member are in contact, and the sound insulating member generates compressive deformation because of pressure of the vibrating reed to it.
6. display device according to claim 1, which is characterized in that be provided between the display panel and the mainboard Center, the center and the display panel touching position are provided with foam, and the foam protect the display panel not by Damage.
7. display device according to claim 1, which is characterized in that be provided between the sounding device and the center Gap, so that the driver does not drive the center to vibrate together in vibration processes.
8. display device according to claim 1, which is characterized in that the driver includes that there are two the Hi-Mids to swash Device and a bass exciter are encouraged, and the bass exciter is located at centre, two Hi-Mid drivers are located at two Side.
9. display device according to claim 8, which is characterized in that three drivers, which respectively correspond, is set to three The sound insulation is intracavitary, and the opening direction of three sound insulation chambers is towards the display device top.
10. according to claim 1 to display device described in 9 any one claims, which is characterized in that the display panel For OLED display panel or LCD display panel.
CN201910202493.XA 2019-03-11 2019-03-11 Display device Active CN110047392B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN110047392A true CN110047392A (en) 2019-07-23
CN110047392B CN110047392B (en) 2021-02-02

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110211558A (en) * 2019-05-27 2019-09-06 武汉华星光电技术有限公司 Display device
CN110493697A (en) * 2019-07-31 2019-11-22 武汉华星光电技术有限公司 Vibration sounding type display panel
CN111885234A (en) * 2020-07-23 2020-11-03 伯恩创盛技术研发(惠州)有限公司 Screen sound production structure, front shroud, back shroud and electronic equipment
CN112289180A (en) * 2020-10-19 2021-01-29 武汉华星光电半导体显示技术有限公司 Display panel and manufacturing method thereof
CN113411527A (en) * 2021-06-17 2021-09-17 康佳集团股份有限公司 Invisible sound channel structure of display device and display device
CN115145075A (en) * 2022-03-21 2022-10-04 海信视像科技股份有限公司 Display device
WO2023284403A1 (en) * 2021-07-13 2023-01-19 荣耀终端有限公司 Audio processing method and device
CN115696131A (en) * 2021-07-30 2023-02-03 歌尔科技有限公司 Display module, sound box and electronic system

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CN107241675A (en) * 2016-03-28 2017-10-10 乐金显示有限公司 Panel vibration type sounding display device
JP2018007247A (en) * 2016-06-30 2018-01-11 エルジー ディスプレイ カンパニー リミテッド Panel vibration type sound generating display device
CN108124224A (en) * 2016-11-30 2018-06-05 乐金显示有限公司 Panel vibration type sounding display device
CN108156562A (en) * 2017-12-28 2018-06-12 上海传英信息技术有限公司 A kind of display screen sound-producing device and intelligent terminal
CN109032558A (en) * 2018-07-23 2018-12-18 Oppo广东移动通信有限公司 Sound production control method and device, electronic device and computer readable medium
CN109218943A (en) * 2017-07-03 2019-01-15 乐金显示有限公司 Show equipment
CN109309892A (en) * 2018-10-16 2019-02-05 歌尔股份有限公司 Electromagnetic driver and screen sounding device
CN109408023A (en) * 2018-10-13 2019-03-01 Oppo广东移动通信有限公司 Screen sounding method and device, control device, electronic equipment and storage medium

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Publication number Priority date Publication date Assignee Title
CN107241675A (en) * 2016-03-28 2017-10-10 乐金显示有限公司 Panel vibration type sounding display device
JP2018007247A (en) * 2016-06-30 2018-01-11 エルジー ディスプレイ カンパニー リミテッド Panel vibration type sound generating display device
CN108124224A (en) * 2016-11-30 2018-06-05 乐金显示有限公司 Panel vibration type sounding display device
CN109218943A (en) * 2017-07-03 2019-01-15 乐金显示有限公司 Show equipment
CN108156562A (en) * 2017-12-28 2018-06-12 上海传英信息技术有限公司 A kind of display screen sound-producing device and intelligent terminal
CN109032558A (en) * 2018-07-23 2018-12-18 Oppo广东移动通信有限公司 Sound production control method and device, electronic device and computer readable medium
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110211558A (en) * 2019-05-27 2019-09-06 武汉华星光电技术有限公司 Display device
CN110493697A (en) * 2019-07-31 2019-11-22 武汉华星光电技术有限公司 Vibration sounding type display panel
CN111885234A (en) * 2020-07-23 2020-11-03 伯恩创盛技术研发(惠州)有限公司 Screen sound production structure, front shroud, back shroud and electronic equipment
CN112289180A (en) * 2020-10-19 2021-01-29 武汉华星光电半导体显示技术有限公司 Display panel and manufacturing method thereof
CN113411527A (en) * 2021-06-17 2021-09-17 康佳集团股份有限公司 Invisible sound channel structure of display device and display device
WO2023284403A1 (en) * 2021-07-13 2023-01-19 荣耀终端有限公司 Audio processing method and device
CN115696131A (en) * 2021-07-30 2023-02-03 歌尔科技有限公司 Display module, sound box and electronic system
CN115145075A (en) * 2022-03-21 2022-10-04 海信视像科技股份有限公司 Display device
CN115145075B (en) * 2022-03-21 2024-03-26 海信视像科技股份有限公司 display screen

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