WO2020172832A1 - 发声液晶显示器 - Google Patents

发声液晶显示器 Download PDF

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Publication number
WO2020172832A1
WO2020172832A1 PCT/CN2019/076401 CN2019076401W WO2020172832A1 WO 2020172832 A1 WO2020172832 A1 WO 2020172832A1 CN 2019076401 W CN2019076401 W CN 2019076401W WO 2020172832 A1 WO2020172832 A1 WO 2020172832A1
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Prior art keywords
liquid crystal
crystal display
display unit
sound
emitting
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PCT/CN2019/076401
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English (en)
French (fr)
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陈引捷
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陈引捷
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Priority to PCT/CN2019/076401 priority Critical patent/WO2020172832A1/zh
Publication of WO2020172832A1 publication Critical patent/WO2020172832A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer

Definitions

  • the invention relates to the field of liquid crystal displays, and in particular to a sound-emitting liquid crystal display.
  • the liquid crystal display in the prior art is shown in FIG. 1 and FIG. 2, and includes a liquid crystal screen 10', a multilayer flexible film 20', a light guide plate 40', and a reflective film 50' which are sequentially stacked.
  • the above-mentioned liquid crystal display also includes a gasket 30 ', the back plate 60' and the light-emitting assembly 70', each functional component is placed on the back plate 60', and no adhesive is used between them.
  • the gasket 30' of some TVs is placed behind the LCD screen 10', that is to say, there is a gap between the LCD screen 10' and the soft film 20' (width is about 1mm-2mm), which also causes the sound exciter The vibration cannot be transmitted to the LCD screen.
  • the main purpose of the present invention is to provide a sound-emitting liquid crystal display to solve the problem that the liquid crystal display in the prior art cannot become a sound.
  • a sound-emitting liquid crystal display which includes a liquid crystal display unit and a back plate.
  • the liquid crystal display unit has a multi-layer structure.
  • One side of the back plate has a housing cavity.
  • the liquid crystal display unit is arranged in the housing cavity.
  • the sounding liquid crystal display further includes: an elastic component, one end of the elastic component is connected to the back plate and the other end applies pressure to the liquid crystal display unit to connect the various layer structures of the liquid crystal display unit, and the back plate and the liquid crystal display unit are formed by the elastic component elastic Variable space; a sound actuator, arranged in the variable space and connected with the liquid crystal display unit, used to vibrate the liquid crystal display unit.
  • the sounding liquid crystal display further includes a pressure reducing plate covering the surface of the liquid crystal display unit, and the sounding actuator is connected to the liquid crystal display unit through the pressure reducing plate.
  • the other end of the elastic component is connected with the pressure reducing plate, and is used to press the liquid crystal display unit through the pressure reducing plate.
  • the pressure reducing plate is selected from any one of hard plastic, honeycomb plate and aluminum plate.
  • the liquid crystal display unit is an edge-type liquid crystal display unit.
  • the liquid crystal display unit includes a light-emitting assembly and a liquid crystal screen, a soft film, a light guide plate and a reflective film stacked sequentially along the first direction, and the liquid crystal screen is located at the outermost side of the containing cavity , And the light-emitting component is arranged on the side of the light guide plate.
  • the light-emitting component protrudes from the light guide plate along the first direction, and the reflective film is spaced apart from the light-emitting component.
  • the soft light film is arranged in contact with the light guide plate; or the sound-emitting liquid crystal display further includes a transparent plate, and the transparent plate is arranged between the soft light film and the light guide plate.
  • the sound-emitting liquid crystal display further includes a fixing component, and the liquid crystal display unit is connected to the back plate through the fixing component.
  • the fixing component is a double-sided tape or a hook.
  • the elastic component is a spring or rubber.
  • a sound-emitting liquid crystal display which includes a liquid crystal display unit and a back plate.
  • the liquid crystal display unit has a multi-layer structure.
  • One side of the back plate has an accommodation cavity.
  • the sounding liquid crystal display also includes a sounding actuator and an elastic component.
  • One end of the elastic component is connected to the back plate and the other end applies pressure to the liquid crystal display unit to connect the various layer structures of the liquid crystal display unit.
  • the sound actuator is arranged in the variable space and connected with the liquid crystal display unit to vibrate the liquid crystal display unit.
  • the above-mentioned elastic component is used to press the liquid crystal display unit, so that a relative vacuum attraction force can be generated between the various layers of the liquid crystal display, and this attraction force is used to connect the components of the liquid crystal display unit closely, making it a whole board, and then making sound
  • the exciter can transmit the audio vibration to the LCD screen to produce sound.
  • Fig. 1 shows a schematic diagram of an exploded structure of a sound-emitting liquid crystal display provided in the prior art
  • Figure 2 shows a schematic cross-sectional view of the sound-emitting liquid crystal display shown in Figure 1;
  • FIG. 3 shows a schematic diagram of an exploded structure of a sound-emitting liquid crystal display provided in an embodiment of the present application
  • FIG. 4 shows a schematic cross-sectional view of the sound-emitting liquid crystal display shown in FIG. 3;
  • FIG. 5 shows a schematic diagram of an exploded structure of another audible liquid crystal display provided in the embodiment of the present application.
  • FIG. 6 shows a schematic cross-sectional view of the sound-emitting liquid crystal display shown in FIG. 5.
  • the inventor of the present invention has studied the above problems and proposed a sound-emitting liquid crystal display, as shown in FIGS. 3 to 6, including a liquid crystal display unit and a back plate 60.
  • the liquid crystal display unit has a multilayer structure.
  • the side has an accommodation cavity, and the liquid crystal display unit is arranged in the accommodation cavity. It is characterized in that the sound-emitting liquid crystal display further includes an elastic component 120 and a sound-producing actuator 90.
  • the sound actuator 90 is arranged in the variable space and connected with the liquid crystal display unit for making The LCD unit vibrates.
  • the above-mentioned elastic component is used to press the liquid crystal display unit, so that a relative vacuum attraction force can be generated between the various layers of the liquid crystal display, and the components of the liquid crystal display unit are closely connected by this attraction force. Make it into a whole board, so that the sound exciter can transmit the audio vibration to the LCD screen to make sound.
  • the above-mentioned elastic component 120 is a spring or rubber.
  • the above-mentioned elastic component 120 is not limited to the above-mentioned preferred types, and those skilled in the art can reasonably select the types of elastic components 120 according to the prior art.
  • the above-mentioned sounding liquid crystal display of the present invention further includes a pressure reducing plate 80, as shown in FIGS. 3 to 6, the pressure reducing plate 80 covers the surface of the liquid crystal display unit, and the sound actuator 90 is connected to the liquid crystal display unit through the pressure reducing plate 80.
  • the aforementioned pressure reducing plate 80 is not only used to connect the sound actuator 90 and the liquid crystal display unit to transmit the vibration generated by the sound actuator 90, but also has a very important function to reduce the pressure per unit area of the sound actuator 90 by dispersing the pressure
  • the entire decompression plate 80 is used to ensure that the liquid crystal screen 10 does not shake visually under the condition of loud sound pressure.
  • the present invention uses the pressure reducing plate 80 in combination with the weight of the sounding actuator 90 to generate a downward stretching force, thereby ensuring The reflective film 50 can always maintain a tight state. In turn, the generation of noise is avoided.
  • the pressure reducing plate 80 is selected from any one of hard plates such as hard plastic, honeycomb plate, iron plate and aluminum plate. However, it is not limited to the above-mentioned preferred types, and those skilled in the art can reasonably select the type of pressure reducing plate 80 according to the prior art.
  • one end of the elastic component 120 is connected to the back plate 60 and the other end applies pressure to the liquid crystal display unit to connect the layers of the liquid crystal display unit; the other end of the elastic component 120 can be connected to the pressure reducing plate 80 The connection is used to press the liquid crystal display unit through the pressure reducing plate 80, as shown in Figs. 3 to 6.
  • the liquid crystal display unit may be an edge-type liquid crystal display unit; preferably, the above-mentioned liquid crystal display unit includes a light-emitting assembly 70 and a liquid crystal screen 10, a soft film 20, The light guide plate 40 and the reflective film 50, the liquid crystal screen 10 are located at the outermost side of the accommodating cavity, and the light-emitting assembly 70 is arranged on the side of the light guide plate 40, as shown in FIGS. 3 to 6.
  • the flexible film 20 may be a laminated multilayer film structure, and those skilled in the art can reasonably select the number of layers of the flexible film 20 according to actual needs; Moreover, those skilled in the art can also reasonably select the type of the light-emitting component 70 in the prior art.
  • the light-emitting component 70 can be an LED.
  • the above-mentioned light-emitting assembly 70 is arranged to protrude from the light guide plate 40 along the first direction, and the reflective film 50 and the light-emitting assembly 70 are arranged at intervals, as shown in FIGS. 3 to 6.
  • a certain gap 110 is left between the reflective film 50 and the light-emitting assembly 70 to correspond to the change in length with the temperature, so as to ensure that the reflective film 50 can always be in an unbent state.
  • the flexible film 20 is arranged in contact with the light guide plate 40, as shown in FIGS. 3 and 4.
  • the vibration from the sound actuator 90 is transmitted from the flexible film 20 to the light guide plate 40, and finally to the liquid crystal screen 10 of the liquid crystal display unit, so as to achieve sound generation and avoid softness.
  • the liquid crystal panel 10 cannot produce sound due to the gap between the light film 20 and the light guide plate 40.
  • the above-mentioned acoustic liquid crystal display of the present invention further includes a transparent plate 30, which is disposed between the soft light film 20 and the light guide plate 40, as shown in FIGS. 5 and 6.
  • the above-mentioned transparent plate 30 is used to fill the gap between the soft light film 20 and the light guide plate 40 in the prior art, so that not only does not affect the soft light effect of the sound-emitting liquid crystal display, but also can ensure the vibration from the sound-emitting actuator 90 It is transferred from the soft light film 20 to the light guide plate 40, and finally transferred to the liquid crystal screen 10 of the liquid crystal display unit to realize sound generation.
  • the above-mentioned sound-emitting liquid crystal display of the present invention may further include a fixing assembly 100, as shown in FIGS. 3 to 6; at this time, the liquid crystal display unit is connected to the back plate 60 through the fixing assembly 100.
  • the use of the above-mentioned fixing assembly 100 can ensure that the reflective film 50 will not slide down.
  • the fixing assembly 100 is a double-sided tape or a hook.
  • the above-mentioned sounding liquid crystal display of the present invention may include the following installation process: sticking a pressure reducing plate 80 on the other side of the reflective film 50 with glue or the like, installing a sounding actuator 90 such as glue on the pressure reducing plate 80, and attaching the above
  • the pressure reducing plate 80 with the sound actuator 90 is placed in the accommodating cavity in the back plate 60
  • the elastic component 120 is installed between the back plate 60 and the pressure reducing plate 80
  • the liquid crystal screen 10 is placed in the receiving cavity in the back plate 60.
  • the audible liquid crystal display provided by this embodiment is shown in Figs. 3 and 4, and includes the following installation process: a pressure reducing plate 80 is attached to the other side of the reflective film 50 with glue or the like, and glue is installed on the pressure reducing plate 80 Put the above-mentioned decompression plate 80 with the sound exciter 90 into the accommodating cavity in the back plate 60, install the elastic component 120 between the back plate 60 and the decompression plate 80, and finally The light guide plate 40, the soft light film 20, and the liquid crystal screen 10 are placed in the accommodating cavity in the back plate 60.
  • the frequency response characteristic (F characteristic) of the sound-emitting liquid crystal display installed in the above-mentioned embodiment 1 was tested, and the test result is shown in FIG. 7. It can be seen from the test results that the sounding liquid crystal display in Embodiment 1 of the present invention can have ideal audio characteristics, which proves that the audio vibration of the sounding actuator 90 in the sounding liquid crystal display is normally transmitted to the liquid crystal screen 10.
  • the above pressure reducing plate is not only used to connect the sound actuator and the liquid crystal display unit to transmit the vibration generated by the sound actuator, but also has a very important function to reduce the unit area pressure of the sound actuator, by dispersing the pressure throughout the entire Decompression board to ensure that the LCD screen does not shake visually under loud sound pressure;
  • the present invention uses the pressure reducing plate combined with the weight of the sound actuator itself to generate a downward stretching force to ensure that the reflection film can Always keep tight. In turn, the generation of noise is avoided.

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  • General Engineering & Computer Science (AREA)
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Abstract

一种发声液晶显示器。包括液晶显示单元和背板（60），液晶显示单元为多层结构，背板（60）的一侧具有容纳腔，液晶显示单元设置于容纳腔中，发声液晶显示器还包括弹性组件（120）和发声激励器（90），弹性组件（120）一端与背板（60）连接另一端对液晶显示单元施压以使液晶显示单元的各层结构相连，背板（60）与液晶显示单元之间具有弹性组件（120）弹压形成的可变空间；发声激励器（90）设置于可变空间中并与液晶显示单元连接，用于使液晶显示单元震动。利用弹性组件（120）对液晶显示单元施压，使液晶显示器中的各层部件之间能够产生一个相对真空引力，利用相对真空引力使液晶显示单元的部件紧密相连，使其成为一块整板，进而使发声激励器（90）能够将音频震动传递到液晶屏，得以发声。

Description

发声液晶显示器 技术领域
本发明涉及液晶显示领域，具体而言，涉及一种发声液晶显示器。
背景技术
现在电视的各个厂商，非常期望让声音从液晶屏发出声音。液晶屏发出声音的前提，不论采取什么方法，使液晶屏发生音频震动才能发出声音。根据现有的条件和产品的形态，只能将发声激励器放置液晶屏显示器的背后。但就目前液晶显示屏构造无法实现将音频震动从液晶显示器的背后传到前面的液晶屏。这就是目前液晶屏不能发声的根本原因。
现有技术中的液晶显示器如图1和图2所示，包括顺序层叠的液晶屏10＇、多层柔光膜20＇、导光板40＇和反射膜50＇，上述液晶显示器还包括垫圈30＇、背板60＇和发光组件70＇，各个功能部件都是放在背板60＇上的，它们之间没有使用任何粘结剂。上述柔光膜20＇与导光板40＇之间通常具有缝隙，宽度约为1mm-2mm，从而根本不可能将将发声激励器的震动传递到液晶屏上。有些电视的垫圈30＇放在液晶屏10＇的后面，也就是说在液晶屏10＇与柔光膜20＇之间有一个的缝隙(宽度约为1mm-2mm)，从而同样导致发声激励器的震动无法传递到液晶屏上。
因此，现有技术中亟需提供一种能够实现让液晶显示屏成为音响的技术。
发明内容
本发明的主要目的在于提供一种发声液晶显示器，以解决现有技术中的液晶显示屏无法成为音响的问题。
为了实现上述目的，提供了一种发声液晶显示器，包括液晶显示单元和背板，液晶显示单元为多层结构，背板的一侧具有容纳腔，液晶显示单元设置于容纳腔中，其特征在于，发声液晶显示器还包括：弹性组件，弹性组件一端与背板连接另一端对液晶显示单元施压以使液晶显示单元的各层结构相连，背板与液晶显示单元之间具有弹性组件弹压形成的可变空间；发声激励器，设置于可变空间中并与液晶显示单元连接，用于使液晶显示单元震动。
进一步地，发声液晶显示器还包括减压板，减压板覆盖于液晶显示单元表面，发声激励器通过减压板与液晶显示单元连接。
进一步地，弹性组件的另一端与减压板连接，用于通过减压板对液晶显示单元施压。
进一步地，减压板选自硬质塑料、蜂窝板和铝板中的任一种。
进一步地，液晶显示单元为侧入式液晶显示单元，优选液晶显示单元包括发光组件以及沿第一方向顺序层叠的液晶屏、柔光膜、导光板和反射膜，液晶屏位于容纳腔的最外侧，且发光组件设置于导光板的侧面。
进一步地，发光组件沿第一方向突出于导光板设置，且反射膜与发光组件间隔设置。
进一步地，柔光膜与导光板接触设置；或发声液晶显示器还包括透明板，透明板设置于柔光膜与导光板之间。
进一步地，发声液晶显示器还包括固定组件，液晶显示单元通过固定组件与背板连接。
进一步地，固定组件为双面胶或挂钩。
进一步地，弹性组件为弹簧或橡胶。
应用本发明的技术方案，提供了一种发声液晶显示器，包括液晶显示单元和背板，液晶显示单元为多层结构，背板的一侧具有容纳腔，液晶显示单元设置于容纳腔中，由于该发声液晶显示器还包括发声激励器和弹性组件，弹性组件一端与背板连接另一端对液晶显示单元施压以使液晶显示单元的各层结构相连，背板与液晶显示单元之间具有弹性组件弹压形成的可变空间，发声激励器设置于可变空间中并与液晶显示单元连接，用于使液晶显示单元震动。利用上述弹性组件对液晶显示单元施压，使液晶显示器中的各层部件之间能够产生一个相对真空引力，利用这个引力使液晶显示单元的部件紧密相连，使其成为一块整板，进而使发声激励器能够将音频震动传递到液晶屏，得以发声。
附图说明
构成本发明的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了在现有技术中所提供的一种发声液晶显示器的爆炸结构示意图；
图2示出了图1所示的发声液晶显示器的断面示意图；
图3示出了在本申请实施方式所提供的一种发声液晶显示器的爆炸结构示意图；
图4示出了图3所示的发声液晶显示器的断面示意图；
图5示出了在本申请实施方式所提供的另一种发声液晶显示器的爆炸结构示意图；
图6示出了图5所示的发声液晶显示器的断面示意图。
其中，上述附图包括以下附图标记：
10＇、液晶屏；20＇、柔光膜；30＇、垫圈；40＇，导光板；50＇、反射膜；60＇、背板；70＇，发光组件；10、液晶屏；20、柔光膜；30、透明板；40，导光板；50、反射膜；60、背板；70、发光组件；80、减压板；90、发声激励器；100、固定组件；110、空隙；120、弹性组件。
具体实施方式
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
正如背景技术中所介绍的，现有技术中亟需提供一种能够实现让液晶显示屏成为音响的技术。本发明的发明人针对上述问题进行研究，提出了一种发声液晶显示器，如图3至图6所示，包括液晶显示单元和背板60，液晶显示单元为多层结构，背板60的一侧具有容纳腔，液晶显示单元设置于容纳腔中，其特征在于，发声液晶显示器还包括弹性组件120和发声激励器90，弹性组件120一端与背板60连接另一端对液晶显示单元施压以使液晶显示单元的各层结构相连，背板60与液晶显示单元之间具有弹性组件120弹压形成的可变空间；发声激励器90设置于可变空间中并与液晶显示单元连接，用于使液晶显示单元震动。
在本发明的上述发声液晶显示器中，利用上述弹性组件对液晶显示单元施压，使液晶显示器中的各层部件之间能够产生一个相对真空引力，利用这个引力使液晶显示单元的部件紧密相连，使其成为一块整板，进而使发声激励器能够将音频震动传递到液晶屏，得以发声。
为了以较低成本实现弹性组件120的上述作用，优选地，上述弹性组件120为弹簧或橡胶。但并不局限于上述优选的种类，本领域技术人员可以根据现有技术对弹性组件120的种类进行合理选取。
本发明的上述发声液晶显示器中还包括减压板80，如图3至图6，减压板80覆盖于液晶显示单元表面，发声激励器90通过减压板80与液晶显示单元连接。上述减压板80不仅用于连接发声激励器90与液晶显示单元，以传递发声激励器90产生的震动，还有一个非常重要的作用是降低发声激励器90的单位面积压强，通过将压力分散到整个减压板80，以保证在大声压的情况下液晶屏10不发生视觉感知晃动。
并且，由于在发声液晶显示器应用过程中温度的变化会导致反射膜50发生伸缩，而本发明利用减压板80结合发声激励器90自身的重量，能够产生一个向下的拉伸力，从而保证反射膜50能够一直保持紧绷状态。进而避免了噪音的产生。
为了实现减压板80的上述作用，优选地，上述减压板80选自硬质塑料、蜂窝板、铁板和铝板等硬质板材中的任一种。但并不局限于上述优选的种类，本领域技术人员可以根据现有技术对减压板80的种类进行合理选取。
在本发明的上述发声液晶显示器中，弹性组件120一端与背板60连接另一端对液晶显示单元施压以使液晶显示单元的各层结构相连；弹性组件120的另一端可以与减压板80连接，用于通过减压板80对液晶显示单元施压，如图3至图6。
在本发明的上述发声液晶显示器中，液晶显示单元可以为侧入式液晶显示单元；优选地，上述液晶显示单元包括发光组件70以及沿第一方向顺序层叠的液晶屏10、柔光膜20、导光板40和反射膜50，液晶屏10位于容纳腔的最外侧，且发光组件70设置于导光板40的侧面，如图3至图6。
在本发明的上述发声液晶显示器中，如图3至图6，柔光膜20可以为层叠的多层膜结构，本领域技术人员可以根据实际需求对柔光膜20的层数进行合理选取；并且，本领域技术人员还可以根据现有技术中对上述发光组件70的种类进行合理选取，如上述发光组件70可以为LED。
更为优选地，上述发光组件70沿第一方向突出于导光板40设置，且反射膜50与发光组件70间隔设置，如图3至图6。通过上述间隔设置使反射膜50与发光组件70之间留有一定空隙110，以对应随温度变化长度的变化，从而保证反射膜50能够一直处于不弯曲状态。
在现有技术中的发声液晶显示器中，柔光膜20与导光板40之间通常会具有空隙，以实现柔光效果。在本发明的一种优选的实施方式，柔光膜20与导光板40接触设置，如图3和图4所示。通过使柔光膜20与导光板40接触设置，保证来自发声激励器90的震动从柔光膜20传递到导光板40，最终传递至液晶显示单元的液晶屏10，以实现发声，避免了柔光膜20与导光板40之间由于存在空隙而导致的液晶屏10无法发声。
在另一种优选的实施方式中，本发明的上述声液晶显示器还包括透明板30，透明板30设置于柔光膜20与导光板40之间，如图5和图6所示。上述透明板30用于填充现有技术中位于柔光膜20与导光板40之间的空隙，从而不仅不会对发声液晶显示器的柔光效果造成影响，还能够保证来自发声激励器90的震动从柔光膜20传递到导光板40，最终传递至液晶显示单元的液晶屏10，以实现发声。
本发明的上述发声液晶显示器还可以包括固定组件100，如图3至图6；此时，液晶显示单元通过固定组件100与背板60连接。采用上述固定组件100能够保证反射膜50不会向下滑落。为了实现固定组件100的上述作用，优选地，上述固定组件100为双面胶或挂钩。
本发明的上述发声液晶显示器可以包括以下安装过程：在反射膜50的另一侧用胶等方式贴上减压板80，在减压板80上安装胶粘等方式发声激励器90，将上述安装有发声激励器90的减压板80放入背板60中的容纳腔中，在背板60与减压板80之间安装弹性组件120，最后顺序将导光板40、柔光膜20和液晶屏10放入背板60中的容纳腔中。
下面将结合实施例进一步说明本发明所提供的上述发声液晶显示器。
实施例1
本实施例所提供的发声液晶显示器如图3和图4所示，包括以下安装过程：在反射膜50的另一侧用胶等方式贴上减压板80，在减压板80上安装胶粘等方式发声激励器90，将上述安装有发声激励器90的减压板80放入背板60中的容纳腔中，在背板60与减压板80之间安装弹性组件120，最后顺序将导光板40、柔光膜20和液晶屏10放入背板60中的容纳腔中。
对上述实施例1中安装得到的发声液晶显示器的频响特性(F特性)进行测试，测试结果如图7所示。从测试结果可以看出，本发明实施例1中的发声液晶显示器能够具有理想的音频特性，证明了发声液晶显示器中发声激励器90的音频震动正常传递到了液晶屏10。
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：
1、利用上述弹性组件对液晶显示单元施压，使液晶显示器中的各层部件之间能够产生一个相对真空引力，利用这个引力使液晶显示单元的部件紧密相连，使其成为一块整板，进而使发声激励器能够将音频震动传递到液晶屏，得以发声；
2、上述减压板不仅用于连接发声激励器与液晶显示单元，以传递发声激励器产生的震动，还有一个非常重要的作用是降低发声激励器的单位面积压强，通过将压力分散到整个减压板，以保证在大声压的情况下液晶屏不发生视觉感知晃动；
3、由于在发声液晶显示器应用过程中温度的变化会导致反射膜发生伸缩，而本发明利用减压板结合发声激励器自身的重量，能够产生一个向下的拉伸力，从而保证反射膜能够一直保持紧绷状态。进而避免了噪音的产生。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种发声液晶显示器，包括液晶显示单元和背板(60)，所述液晶显示单元为多层结构，所述背板(60)的一侧具有容纳腔，所述液晶显示单元设置于所述容纳腔中，其特征在于，所述发声液晶显示器还包括：
    弹性组件(120)，所述弹性组件(120)一端与所述背板(60)连接另一端对所述液晶显示单元施压以使所述液晶显示单元的各层结构相连，所述背板(60)与所述液晶显示单元之间具有所述弹性组件(120)弹压形成的可变空间；
    发声激励器(90)，设置于所述可变空间中并与所述液晶显示单元连接，用于使所述液晶显示单元震动。
  2. 根据权利要求1所述的发声液晶显示器，其特征在于，所述发声液晶显示器还包括减压板(80)，所述减压板(80)覆盖于所述液晶显示单元表面，所述发声激励器(90)通过所述减压板(80)与所述液晶显示单元连接。
  3. 根据权利要求2所述的发声液晶显示器，其特征在于，所述弹性组件(120)的所述另一端与所述减压板(80)连接，用于通过所述减压板(80)对所述液晶显示单元施压。
  4. 根据权利要求2所述的发声液晶显示器，其特征在于，所述减压板(80)选自硬质塑料、蜂窝板、铁板和铝板中的任一种。
  5. 根据权利要求1至4中任一项所述的发声液晶显示器，其特征在于，所述液晶显示单元为侧入式液晶显示单元，优选所述液晶显示单元包括发光组件(70)以及沿第一方向顺序层叠的液晶屏(10)、柔光膜(20)、导光板(40)和反射膜(50)，所述液晶屏(10)位于所述容纳腔的最外侧，且所述发光组件(70)设置于所述导光板(40)的侧面。
  6. 根据权利要求5所述的发声液晶显示器，其特征在于，所述发光组件(70)沿所述第一方向突出于所述导光板(40)设置，且所述反射膜(50)与所述发光组件(70)间隔设置。
  7. 根据权利要求5所述的发声液晶显示器，其特征在于，
    所述柔光膜(20)与所述导光板(40)接触设置；或
    所述发声液晶显示器还包括透明板(30)，所述透明板(30)设置于所述柔光膜(20)与所述导光板(40)之间。
  8. 根据权利要求1至4中任一项所述的发声液晶显示器，其特征在于，所述发声液晶显示器还包括固定组件(100)，所述液晶显示单元通过所述固定组件(100)与所述背板(60)连接。
  9. 根据权利要求8所述的发声液晶显示器，其特征在于，所述固定组件(100)为双面胶或挂钩。
  10. 根据权利要求1至4中任一项所述的发声液晶显示器，其特征在于，所述弹性组件(120)为弹簧或橡胶。
PCT/CN2019/076401 2019-02-28 2019-02-28 发声液晶显示器 WO2020172832A1 (zh)

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