WO2020258551A1 - 车载触摸显示装置 - Google Patents

车载触摸显示装置 Download PDF

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Publication number
WO2020258551A1
WO2020258551A1 PCT/CN2019/107785 CN2019107785W WO2020258551A1 WO 2020258551 A1 WO2020258551 A1 WO 2020258551A1 CN 2019107785 W CN2019107785 W CN 2019107785W WO 2020258551 A1 WO2020258551 A1 WO 2020258551A1
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WIPO (PCT)
Prior art keywords
touch display
vehicle
display device
polarizing film
layer
Prior art date
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Ceased
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PCT/CN2019/107785
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English (en)
French (fr)
Inventor
周政
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
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US16/609,477 priority Critical patent/US10948759B2/en
Publication of WO2020258551A1 publication Critical patent/WO2020258551A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the invention relates to the technical field of vehicle display, in particular to a vehicle touch display device.
  • the existing vehicle-mounted touch display module is usually composed of a touch screen and a liquid crystal display that are bonded together, and then fixed with a backlight source by tape or glue. Due to factors such as vibration or environment, during use of the vehicle touch display module, external dust often easily enters the vehicle touch display module, resulting in a reduction in display quality and thus affecting the display effect.
  • the object of the present invention is to provide a vehicle-mounted touch display device to prevent dust or particles from entering the vehicle-mounted touch display module, thereby improving the display effect.
  • the present invention provides a vehicle-mounted touch display device, which is characterized by comprising a backlight module, a touch display module and a frame sealant.
  • the touch display module is arranged above the backlight module, and the touch display module includes a touch screen, an upper polarizing film, a liquid crystal layer, and a lower polarizing film stacked in sequence.
  • the frame sealing glue combines the backlight module and the touch display module.
  • the frame sealant has a protrusion protruding between the backlight module and the touch display module.
  • An adhesive layer is further provided on one side of the protruding part facing the lower polarizing film, wherein the adhesive layer further includes polyurethane and double-sided adhesive glued on both surfaces of the polyurethane.
  • the double-sided tape of one is adhered to the side surface of the protrusion, and the double-sided tape of the other is not in contact with the lower polarizing film.
  • the thickness of the polyurethane is greater than the thickness of each of the double-sided tapes.
  • an air gap layer is further included, the air gap layer is located between the adhesive layer and the lower polarizing film, and the thickness of the air gap layer is between 0.1 to 0.2 mm.
  • the frame sealing compound further includes a light-emitting opening formed between the two protrusions.
  • the size of the touch screen is larger than the size of the frame sealing glue, and both ends of the touch screen protrude outside the frame sealing glue.
  • the touch display module further includes an adhesive layer disposed on the touch screen and the upper polarizing film, and the adhesive layer is tape or glue.
  • the backlight module further includes a plurality of optical films, a metal frame for fixing each of the optical films, and at least one light source, and the metal frame is combined with the frame sealing glue.
  • the at least one light source is a light-emitting diode or a plurality of sub-millimeter light-emitting diodes or a plurality of cold cathode fluorescent tubes
  • each of the optical films includes a light guide plate, a prism layer, a diffusion layer and a reflection layer.
  • the present invention also provides a vehicle-mounted touch display device, which includes a backlight module, a touch display module and a frame sealant.
  • the touch display module is arranged above the backlight module, and the touch display module includes a touch screen, an upper polarizing film, a liquid crystal layer, and a lower polarizing film stacked in sequence.
  • the frame sealing glue combines the backlight module and the touch display module.
  • the frame sealant has a protrusion protruding between the backlight module and the touch display module.
  • An adhesive layer is further provided on the side surface of the protrusion facing the lower polarizing film.
  • the adhesive layer further comprises polyurethane and double-sided adhesive glued on both surfaces of the polyurethane.
  • one of the double-sided adhesive tapes is adhered to the side surface of the protrusion, and the other of the double-sided adhesive tapes is not in contact with the lower polarizing film.
  • the thickness of the polyurethane is greater than the thickness of each of the double-sided tapes.
  • an air gap layer is further included, the air gap layer is located between the adhesive layer and the lower polarizing film, and the thickness of the air gap layer is between 0.1 to 0.2 mm.
  • the frame sealing compound further includes a light-emitting opening formed between the two protrusions.
  • the size of the touch screen is larger than the size of the frame sealing glue, and both ends of the touch screen protrude outside the frame sealing glue.
  • the touch display module further includes an adhesive layer disposed on the touch screen and the upper polarizing film, and the adhesive layer is tape or glue.
  • the backlight module further includes a plurality of optical films, a metal frame for fixing each of the optical films, and at least one light source, and the metal frame is combined with the frame sealing glue.
  • the at least one light source is a light-emitting diode or a plurality of sub-millimeter light-emitting diodes or a plurality of cold cathode fluorescent tubes
  • each of the optical films includes a light guide plate, a prism layer, a diffusion layer and a reflection layer.
  • the present invention also has the following effects.
  • the present invention reduces the risk of foreign matter entering the vehicle-mounted touch display device through the adhesion ability of the adhesive layer, and improves the display quality, dust-proof ability and its market competitiveness.
  • the air gap layer located between the adhesive layer and the lower polarizing film can prevent the liquid crystal layer directly adhering to the adhesive layer from being affected by the deformation of the backlight module and causing uneven display (optical defects). )
  • Fig. 1 is a schematic cross-sectional view of a vehicle-mounted touch display device of the present invention.
  • Fig. 2 is an enlarged schematic diagram of area A in Fig. 1.
  • FIG. 1 is a schematic cross-sectional view of a vehicle-mounted touch display device of the present invention
  • FIG. 2 is an enlarged schematic view of area A in FIG. 1.
  • the present invention provides a vehicle-mounted touch display device 1 including a backlight module (Backlight Module) 11, a touch display module 12 and a frame sealant 13.
  • the backlight module 11 is used to provide sufficient brightness and uniform light so that the liquid crystal layer 123 in the touch display module 12 can display images normally.
  • the specific structure of the in-vehicle touch display device 1 is described below.
  • the touch display module 12 is disposed above the backlight module 11, and the touch display module 12 includes a touch screen 121, an upper polarizing film 122, a liquid crystal layer 123 and a lower polarizing film 124 stacked in sequence.
  • the frame sealant 13 combines the backlight module 11 and the touch display module 12.
  • the frame sealant 13 has a protrusion 131 protruding between the backlight module 11 and the touch display module 12.
  • An adhesive layer 15 is further provided on a side surface (not labeled) of the protruding portion 131 facing the lower polarizing film 124.
  • the touch display module 12 further includes an adhesive layer 126 disposed on the touch screen 121 and the upper polarizing film 122.
  • the adhesive layer 126 is, for example, tape, glue or other suitable adhesives to strengthen the bonding ability of the touch screen 121.
  • the backlight module 11 further includes a plurality of optical films 111 (Optical Films), a metal frame 112 for fixing each of the optical films 111, and at least one light source (the figure is omitted).
  • the metal frame 112 is combined with the frame sealant 13 (ie, the other side surface of the protrusion 131). Since the liquid crystal layer 123 does not emit light, light is provided by the light source of the backlight module 11.
  • the at least one light source in this embodiment is preferably a light emitting diode (LED).
  • the light source can also be a plurality of sub-millimeter light emitting diodes (mini-LED) or a plurality of cold cathode fluorescent lamps (CCFL; Cold Cathode Fluorescent Lamp), change as needed.
  • Each of the optical films 111 includes, for example, a light guide plate, a prism layer, a diffusion layer, a reflection layer, etc., to convert a point or line light source into a uniform surface light source.
  • the adhesive layer 15 further includes polyurethane 151 (PU, poly urethane; also called foam) and double-sided adhesive 152 adhered to the two surfaces of the polyurethane 151. Only a single double-sided tape 152 is shown in FIG. 2. One of the double-sided adhesive tape 152 is adhered to the side surface of the protrusion 131, and the other double-sided adhesive tape 152 is not in contact with the lower polarizing film 124. The thickness of the polyurethane 151 is greater than the thickness of each double-sided adhesive 152.
  • the cushioning effect of the polyurethane 151 and the protrusion 131 made of plastic material can avoid the rigid collision between the liquid crystal layer 123 or the touch screen 121 and the backlight module 11 and achieve shock resistance , Shock absorption and protection effect.
  • the double-sided adhesive 152 of the adhesive layer 15 will stick the foreign objects to a certain extent, thereby preventing the foreign objects from entering the touch display module.
  • the display quality, dust-proof ability and market competitiveness are improved.
  • the embodiment shown in FIG. 2 further includes an air gap layer 125, and the air gap layer 125 is located between the adhesive layer 15 and the lower polarizing film 124.
  • the thickness of the air gap layer 125 is between 0.1 and 0.2 mm.
  • the air gap layer 125 prevents the touch display module 12 from being adhered by the double-sided adhesive 152 when the vehicle is shaking, so as to reduce the partial force of the liquid crystal layer 123 caused by the deformation of the backlight module 11, and at the same time, it can prevent the liquid crystal layer 123 from being exposed to the backlight module.
  • the deformation of the group 11 adheres to the adhesive layer 15 and affects the dust-sticking ability of the adhesive layer 15, so as to avoid poor or uneven display effects, thereby improving the product's resistance to deformation and market competitiveness.
  • the size of the touch screen 121 is larger than the size of the frame sealant 13, and both ends of the touch screen 121 protrude beyond the frame sealant 13, which can further prevent dust, particles or other foreign objects from coming from the touch screen.
  • the gap between 121 and the frame sealant 13 enters the vehicle-mounted touch display device 1.
  • the frame sealant 13 further includes a light-emitting opening 132 formed between the two protrusions 131, so that light from the backlight module 11 can pass through the light-emitting opening 132 and provide the liquid crystal layer 123 Sufficient brightness and uniform light source.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Liquid Crystal (AREA)

Abstract

一种车载触摸显示装置，包括背光模组(11)、触摸显示模组(12)及封框胶(13)。触摸显示模组(12)设置在背光模组(11)上方，触摸显示模组(12)包括依次叠设的触摸屏(121)、上偏光膜(122)、液晶层(123)及下偏光膜(124)。封框胶(13)结合背光模组(11)和触摸显示模组(12)。封框胶(13)具有凸出于背光模组(11)和触摸显示模组(12)之间的突出部(131)，突出部(131)朝向下偏光膜(124)的一侧面上还设置有黏贴胶层(15)。借此，避免灰尘或微粒进入触摸显示模组(12)内，从而提升显示效果。

Description

车载触摸显示装置 技术领域
本发明涉及一种车载显示技术领域，尤指一种车载触摸显示装置。
 背景技术
随着显示技术的发展，车载触摸显示模组的应用领域越来越广泛，其中对于模组防尘的要求也越来越高。现有车载触摸显示模组通常由触摸屏与液晶显示屏贴合后，再与背光源通过胶带或者胶水固定而组成。由于振动或环境等因素下，车载触摸显示模组在使用过程中，外界灰尘经常容易进入车载触摸显示模组中，造成显示质量下降，因而影响显示效果。
 技术问题
由于振动或环境等因素下，车载触摸显示模组在使用过程中，外界灰尘经常容易进入车载触摸显示模组中，造成显示质量下降，因而影响显示效果。
 技术解决方案
本发明的目的，在于提供一种车载触摸显示装置，避免灰尘或微粒进入所述车载触摸显示模组内，从而提升显示效果。
为达到本发明前述目的，本发明提供一种车载触摸显示装置，其特征在于，包括背光模组、触摸显示模组及封框胶。所述触摸显示模组设置在所述背光模组上方，所述触摸显示模组包括依次叠设的触摸屏、上偏光膜、液晶层及下偏光膜。所述封框胶结合所述背光模组和所述触摸显示模组。所述封框胶具有凸出于所述背光模组和所述触摸显示模组之间的突出部。所述突出部朝向所述下偏光膜的一侧面上还设置有黏贴胶层，其中所述黏贴胶层还包括聚氨酯和黏贴在所述聚氨酯二侧表面的双面胶。
优选地，其一的所述双面胶与所述突出部的所述侧面黏合，另一所述双面胶则未与所述下偏光膜接触。
优选地，所述聚氨酯的厚度大于各所述双面胶的厚度。
优选地，还包括空气间隙层，所述空气间隙层位于所述黏贴胶层和所述下偏光膜之间，所述空气间隙层的厚度介于0.1至0.2毫米。
优选地，所述封框胶还包括出光开口，所述出光开口形成在所述二突出部之间。
优选地，所述触摸屏的尺寸大于所述封框胶的尺寸，且所述触摸屏的两端突出于所述封框胶之外。
优选地，所述触摸显示模组还包括设置在所述触摸屏和所述上偏光膜的黏着层，所述黏着层为胶带或胶水。
优选地，所述背光模组还包括多个光学膜片、固定各所述光学膜片的金属框架和至少一光源，所述金属框架结合在所述封框胶上。
优选地，所述至少一光源为发光二极管或为多个次毫米发光二极管或为多个冷阴极荧光灯管，各所述光学膜片包括导光板、棱镜层、扩散层与反射层。
本发明另提供一种车载触摸显示装置，包括背光模组、触摸显示模组及封框胶。所述触摸显示模组设置在所述背光模组上方，所述触摸显示模组包括依次叠设的触摸屏、上偏光膜、液晶层及下偏光膜。所述封框胶结合所述背光模组和所述触摸显示模组。所述封框胶具有凸出于所述背光模组和所述触摸显示模组之间的突出部。所述突出部朝向所述下偏光膜的一侧面上还设置有黏贴胶层。
优选地，还包括设置在所述基板上的无机线路层，所述黏贴胶层还包括聚氨酯和黏贴在所述聚氨酯二侧表面的双面胶。
优选地，其一所述双面胶与所述突出部的所述侧面黏合，另一所述双面胶则未与所述下偏光膜接触。
优选地，所述聚氨酯的厚度大于各所述双面胶的厚度。
优选地，还包括空气间隙层，所述空气间隙层位于所述黏贴胶层和所述下偏光膜之间，所述空气间隙层的厚度介于0.1至0.2毫米。
优选地，所述封框胶还包括出光开口，所述出光开口形成在所述二突出部之间。
优选地，所述触摸屏的尺寸大于所述封框胶的尺寸，且所述触摸屏的两端突出于所述封框胶之外。
优选地，所述触摸显示模组还包括设置在所述触摸屏和所述上偏光膜的黏着层，所述黏着层为胶带或胶水。
优选地，所述背光模组还包括多个光学膜片、固定各所述光学膜片的金属框架和至少一光源，所述金属框架结合在所述封框胶上。
优选地，所述至少一光源为发光二极管或为多个次毫米发光二极管或为多个冷阴极荧光灯管，各所述光学膜片包括导光板、棱镜层、扩散层与反射层。
 有益效果
本发明还具有以下功效，本发明通过黏贴胶层的黏附能力，降低异物进入车载触摸显示装置内的风险，提升显示品质、防尘能力和其市场竞争力。再者，位于所述黏贴胶层和所述下偏光膜之间的空气间隙层，能够避免液晶层直接黏附于黏贴胶层上受到背光模组形变的影响而导致显示不均（光学不良）的问题，从而提高产品抗形变能力与市场竞争力。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明车载触摸显示装置的横截面示意图；及
图2是图1中A区域的放大示意图。
 本发明的最佳实施方式
在具体实施方式中提及“实施例”意指结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的不同位置出现的相同用语并非必然被限制为相同的实施方式，而应当理解为与其它实施例互为独立的或备选的实施方式。在本发明提供的实施例所公开的技术方案启示下，本领域的普通技术人员应理解本发明所描述的实施例可具有其他符合本发明构思的技术方案结合或变化。
请一并参照图1及图2所示，图1为本发明车载触摸显示装置的横截面示意图；图2为图1中A区域的放大示意图。在如图1及图2所示的实施例中，本发明提供一种车载触摸显示装置1包括背光模组(Backlight Module)11、触摸显示模组12及封框胶13。背光模块11用以提供充足的亮度与均匀的光线，使触摸显示模组12内的液晶层123能正常显示影像。车载触摸显示装置1的具体结构容下所述。
所述触摸显示模组12设置在所述背光模组11上方，所述触摸显示模组12包括依次叠设的触摸屏121、上偏光膜122、液晶层123及下偏光膜124。所述封框胶13结合所述背光模组11和所述触摸显示模组12。所述封框胶13具有凸出于所述背光模组11和所述触摸显示模组12之间的突出部131。所述突出部131朝向所述下偏光膜124的一侧面(未标示)上还设置有黏贴胶层15。
如图2所示，所述触摸显示模组12还包括设置在所述触摸屏121和所述上偏光膜122的黏着层126。所述黏着层126例如为胶带、胶水或其他适合的黏着剂，以强化触摸屏121的结合能力。
所述背光模组11还包括多个光学膜片111(Optical Film)、固定各所述光学膜片111的金属框架112和至少一光源(图略)。所述金属框架112结合在所述封框胶13(即突出部131的另一侧面)上。由于液晶层123不发光，通过背光模组11的光源提供光线。本实施例的所述至少一光源优选为发光二极管(LED)。在另一次选的实施例中，光源也可为多个次毫米发光二极管(mini-LED)或为多个冷阴极荧光灯管(CCFL；Cold Cathode Fluorescent Lamp)，视需要而改变。通过各所述光学膜片111例如包括导光板、棱镜层、扩散层与反射层等将点或线光源，以将光源转换成均匀的面光源。
在如图2所示的实施例中，所述黏贴胶层15还包括聚氨酯151(PU，ploy urethane；又称泡棉)和黏贴在所述聚氨酯151二侧表面的双面胶152。图2中仅绘示单一的双面胶152表示。其一所述双面胶152与所述突出部131的所述侧面黏合，另一所述双面胶152则未与所述下偏光膜124接触。所述聚氨酯151的厚度大于各所述双面胶152的厚度。
由于汽车在行驶过程中会出现剧烈震动，利用聚氨酯151以及塑性材质制成的突出部131所具备的缓冲作用，能够避免液晶层123或触摸屏121与背光模组11之间出现刚性碰撞，实现防震、吸震与保护的效果。此外，当异物，例如灰尘、微粒等因振动等因素进入触摸显示模组12内时，所述黏贴胶层15的双面胶152会在一定程度的将异物黏附住，进而防止异物进入触摸显示模组12内，从而提升显示品质、防尘能力和其市场竞争力。
如图2所示的实施例中还包括空气间隙层125，所述空气间隙层125位于所述黏贴胶层15和所述下偏光膜124之间。所述空气间隙层125的厚度介于0.1至0.2毫米。所述空气间隙层125具有防止车辆在震动时触摸显示模组12被双面胶152黏附，达到减少液晶层123因背光模组11形变导致局部受力效果，同时能够避免液晶层123受到背光模组11的形变而黏附于黏贴胶层15上，影响黏贴胶层15的黏尘能力，达到避免显示效果不佳或不均的不良现象，从而提高产品抗形变能力与市场竞争力。
再者，所述触摸屏121的尺寸大于所述封框胶13的尺寸，且所述触摸屏121的两端突出于所述封框胶13之外，也能够进一步避免灰尘、微粒或其他异物从触摸屏121与封框胶13间的缝隙进入车载触摸显示装置1内。所述封框胶13还包括出光开口132，所述出光开口132形成在所述二突出部131之间，以利背光模组11的光线通过所述出光开口132，并提供所述液晶层123充足的亮度与分布均匀的光源。
综上所述，虽然本发明结合其具体实施例而被描述，应该理解的是，许多替代、修改及变化对于那些本领域的技术人员将是显而易见的。因此，其意在包含落入所附权利要求书的范围内的所有替代、修改及变化。

Claims (19)

  1. 一种车载触摸显示装置，其特征在于，包括:
    背光模组；
    触摸显示模组，设置在所述背光模组上方，所述触摸显示模组包括依次叠设的触摸屏、上偏光膜、液晶层及下偏光膜；及
    封框胶，结合所述背光模组和所述触摸显示模组，所述封框胶具有凸出于所述背光模组和所述触摸显示模组之间的突出部，所述突出部朝向所述下偏光膜的一侧面上还设置有黏贴胶层，其中所述黏贴胶层还包括聚氨酯和黏贴在所述聚氨酯二侧表面的双面胶。
  2. 如权利要求1所述车载触摸显示装置，其中，其一的所述双面胶与所述突出部的所述侧面黏合，另一所述双面胶则未与所述下偏光膜接触。
  3. 如权利要求1所述车载触摸显示装置，其中所述聚氨酯的厚度大于各所述双面胶的厚度。
  4. 如权利要求1所述车载触摸显示装置，还包括空气间隙层，所述空气间隙层位于所述黏贴胶层和所述下偏光膜之间，所述空气间隙层的厚度介于0.1至0.2毫米。
  5. 如权利要求1所述车载触摸显示装置，其中所述封框胶还包括出光开口，所述出光开口形成在所述二突出部之间。
  6. 如权利要求1所述车载触摸显示装置，其中所述触摸屏的尺寸大于所述封框胶的尺寸，且所述触摸屏的两端突出于所述封框胶之外。
  7. 如权利要求1所述车载触摸显示装置，其中所述触摸显示模组还包括设置在所述触摸屏和所述上偏光膜的黏着层，所述黏着层为胶带或胶水。
  8. 如权利要求1所述车载触摸显示装置，其中所述背光模组还包括多个光学膜片、固定各所述光学膜片的金属框架和至少一光源，所述金属框架结合在所述封框胶上。
  9. 如权利要求8所述车载触摸显示装置，其中所述至少一光源为发光二极管或为多个次毫米发光二极管或为多个冷阴极荧光灯管，各所述光学膜片包括导光板、棱镜层、扩散层与反射层。
  10. 一种车载触摸显示装置，包括:
    背光模组；
    触摸显示模组，设置在所述背光模组上方，所述触摸显示模组包括依次叠设的触摸屏、上偏光膜、液晶层及下偏光膜；及
    封框胶，结合所述背光模组和所述触摸显示模组，所述封框胶具有凸出于所述背光模组和所述触摸显示模组之间的突出部，所述突出部朝向所述下偏光膜的一侧面上还设置有黏贴胶层。
  11. 如权利要求10所述车载触摸显示装置，其中所述黏贴胶层还包括聚氨酯和黏贴在所述聚氨酯二侧表面的双面胶。
  12. 如权利要求11所述车载触摸显示装置，其中，其一所述双面胶与所述突出部的所述侧面黏合，另一所述双面胶则未与所述下偏光膜接触。
  13. 如权利要求11所述车载触摸显示装置，其中所述聚氨酯的厚度大于各所述双面胶的厚度。
  14. 如权利要求10所述车载触摸显示装置，其中还包括空气间隙层，所述空气间隙层位于所述黏贴胶层和所述下偏光膜之间，所述空气间隙层的厚度介于0.1至0.2毫米。
  15. 如权利要求10所述车载触摸显示装置，其中所述封框胶还包括出光开口，所述出光开口形成在所述二突出部之间。
  16. 如权利要求10所述车载触摸显示装置，其中所述触摸屏的尺寸大于所述封框胶的尺寸，且所述触摸屏的两端突出于所述封框胶之外。
  17. 如权利要求10所述车载触摸显示装置，其中所述触摸显示模组还包括设置在所述触摸屏和所述上偏光膜的黏着层，所述黏着层为胶带或胶水。
  18. 如权利要求10所述车载触摸显示装置，其中所述背光模组还包括多个光学膜片、固定各所述光学膜片的金属框架和至少一光源，所述金属框架结合在所述封框胶上。
  19. 如权利要求18所述车载触摸显示装置，其中所述至少一光源为发光二极管或为多个次毫米发光二极管或为多个冷阴极荧光灯管，各所述光学膜片包括导光板、棱镜层、扩散层与反射层。
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