WO2016192129A1 - 液晶显示模组、液晶显示器及移动终端 - Google Patents

液晶显示模组、液晶显示器及移动终端 Download PDF

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Publication number
WO2016192129A1
WO2016192129A1 PCT/CN2015/081307 CN2015081307W WO2016192129A1 WO 2016192129 A1 WO2016192129 A1 WO 2016192129A1 CN 2015081307 W CN2015081307 W CN 2015081307W WO 2016192129 A1 WO2016192129 A1 WO 2016192129A1
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Prior art keywords
liquid crystal
crystal display
display module
guide plate
light guide
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PCT/CN2015/081307
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English (en)
French (fr)
Inventor
谢晨
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Publication of WO2016192129A1 publication Critical patent/WO2016192129A1/zh
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a liquid crystal display module, and to a liquid crystal display and a mobile terminal configured with the liquid crystal display module.
  • the width of the plastic frame of the liquid crystal display module is directly related to the width of the electronic product frame.
  • the usual practice is to achieve the narrow bezel requirements of the entire module by compressing the thickness of the side walls of the frame and reducing the width of the masking tape.
  • a part of the light that does not enter the light guide plate will propagate in the gap, and the brightness of the part of the light is higher than that of the normally emitted light without the treatment of the optical film. high.
  • the width of the light-shielding tape is reduced, the light propagating in the gap will have a greater chance of entering the glass than the ordinary backlight, that is, light leakage, which is represented by a bright line around the screen.
  • the design of such a narrow bezel has a large risk of light leakage, which may affect the display effect and customer experience of the liquid crystal display module.
  • the technical problem to be solved by the present invention is to provide a liquid crystal display module capable of reducing light leakage, and a liquid crystal display and a mobile terminal equipped with the liquid crystal display module, which can solve the problem of light leakage of the liquid crystal display module.
  • a technical solution adopted by the present invention is to provide a liquid crystal display module, including:
  • a backlight module comprising a plastic frame, a light guide plate and an optical film disposed on the light guide plate;
  • the rubber frame is disposed on an outer circumference of the light guide plate, and a gap is disposed between the light guide plate and the light guide plate, and the inner surface of the frame light guide plate has an uneven region that scatters or reflects light.
  • the uneven area is formed by a sanding process.
  • the inner surface of the plastic frame facing the light incident surface of the light guide plate has an uneven region.
  • the inner surface of the light-emitting surface of the plastic frame facing the light guide plate has an uneven region.
  • the uneven area is a smooth wavy surface or a rugged granular surface.
  • the uneven area is continuously distributed on the inner surface of the plastic frame.
  • the uneven regions are spaced apart from each other on the inner surface of the plastic frame.
  • the plastic frame is black or gray.
  • another technical solution adopted by the present invention is to provide a liquid crystal display including the above liquid crystal display module.
  • another technical solution adopted by the present invention is to provide a mobile terminal, including the above liquid crystal display module, and the liquid crystal display module is a display module of the mobile terminal.
  • the invention has the beneficial effects that the plastic frame of the liquid crystal display module of the present invention is provided with an uneven area, and the uneven area is located at the side of the plastic frame facing the light guide plate, which increases the plastic frame and the difference between the prior art and the prior art.
  • the degree of scattering and reflection of light between the light guide plates can equalize the angle and intensity of the light, and reduce the brightness of the whole gap; the increase of the number of reflections can increase the loss of light intensity, effectively reduce the light intensity of the gap region, and alleviate the phenomenon of light leakage at the edge of the screen.
  • FIG. 1 is a simplified schematic diagram of an internal structure of a preferred embodiment of a liquid crystal display module of the present invention
  • FIG. 2 is a simplified schematic diagram of an internal structure of another embodiment of a plastic frame in a liquid crystal display module of the present invention
  • FIG. 3 is a simplified schematic diagram showing the internal structure of another embodiment of the plastic frame in the liquid crystal display module of the present invention.
  • Figure 4 is a schematic view of a liquid crystal display of the present invention.
  • Figure 5 is a schematic illustration of a mobile terminal of the present invention.
  • the present invention provides a liquid crystal display module 100 .
  • the liquid crystal display module 100 includes a backlight module 200 and a display panel 400 .
  • the backlight module 200 includes a plastic frame 300, a light guide plate 220, and an optical film 240 disposed on the light guide plate 220.
  • One side of the light guide plate 220 facing the light source is a light incident surface, and the other side of the light guide plate 220 except the light surface is a light exit surface.
  • the plastic frame 300 is placed on the outer periphery of the light guide plate 220, and a gap is provided between the plastic frame 300 and the light guide plate 220.
  • the frame 300 faces the inner surface of the light guide plate 220 with an uneven region 320 that scatters or reflects light.
  • the inner surface uneven area 320 of the plastic frame 300 faces the light incident surface of the light guide plate 220 .
  • the uneven area 320 is a smooth wavy surface. It should be understood that, in the present invention, the surface of the uneven region 320 is not limited thereto, and for example, the surface of the uneven region 320 may also be a rugged granular surface as shown in FIG. 2 .
  • the display panel 400 is stacked on the plastic frame 300 and the light guide plate 220, and the display panel 400 is pasted and fixed to the plastic frame 300 by the sealant 30.
  • the display panel 400 includes a lower polarizing plate 422, a liquid crystal layer 424, and an upper polarizing plate 426 which are sequentially stacked.
  • the liquid crystal display module 100 further includes a reflective film 50 disposed on the bottom surface of the plastic frame 300.
  • the light guide plate 220 is disposed on the reflective film 50.
  • the uneven region 320 is formed by a sanding process, and the matte treatment can be performed on the corresponding surface of the mold frame 230 mold.
  • the increased frosted surface can increase the scatter and the number of reflections of the gap summary light.
  • the increase of the scattering degree can equalize the angle and intensity of the light, and reduce the brightness of the whole gap; the increase of the number of reflections can increase the loss of light intensity, effectively reduce the light intensity in the gap region, and alleviate the phenomenon of edge leakage.
  • the inner surface uneven area 320 of the plastic frame 300 may also face the light emitting surface of the light guide plate 220.
  • the light When light is incident on the uneven area, the light is no longer reflected in one direction, but is reflected in a scattering form. Therefore, the light incident on the light-emitting surface is no longer concentrated into a bright line, thereby avoiding light leakage at the edge of the narrow-frame liquid crystal display module.
  • the uneven region 320 can be continuously distributed on the inner surface of the plastic frame 300, so that the manufacturing process is simple.
  • the uneven regions 320 may also be spaced apart from the inner surface of the bezel 300 so that it can scatter light incident on the side to avoid the occurrence of bright lines (see FIG. 2).
  • the white material is a highly reflective material having a reflectance greater than or equal to 90%, and the black or gray material is a low reflective material, the reflectance is less than or equal to 50%.
  • a low-reflective material such as a black material or a gray material is used.
  • the present invention further provides a liquid crystal display 500 comprising the above liquid crystal display module 100.
  • the present invention further provides a mobile terminal 600 , which includes the above liquid crystal display module 100 , and the liquid crystal display module 100 is a display module of the mobile terminal 600 .
  • the plastic frame of the liquid crystal display module 100 of the present invention is provided with an uneven area 320.
  • the uneven area 320 is located on the side of the plastic frame facing the light guide plate 220, and the plastic frame 300 and the light guide plate are added.
  • the increase of the scattering degree can equalize the angle and intensity of the light, and reduce the brightness of the whole gap; the increase of the number of reflections can increase the loss of light intensity, effectively reduce the light intensity of the gap region, and alleviate the phenomenon of light leakage at the edge of the screen.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种液晶显示模组（100）及包括上述液晶显示模组（100）的一种液晶显示器（500）及一种移动终端（600），所述液晶显示模组（100）包括一背光模组（200）及一显示面板（400）。背光模组（200）包括一胶框（300）、一导光板（220）及设于导光板（220）上的光学膜片（240）。显示面板（400）叠置于胶框（300）和导光板（220）上方并抵靠胶框（300）。胶框（300）面向导光板（220）的内表面具有将光线散射或反射的不平坦区域。通过上述方式，液晶显示模组（100）的胶框（300）的不平坦区域增加了胶框（300）与导光板（220）之间光线的散射度与反射次数，能够减少漏光。

Description

液晶显示模组、液晶显示器及移动终端
【技术领域】
本发明涉及液晶显示领域，特别是涉及一种液晶显示模组，还涉及一种配置有该液晶显示模组的液晶显示器及移动终端。
【背景技术】
随着移动通讯产品及Pad类产品技术的发展，许多电子厂商以“窄边框”作为卖点吸引消费者。而液晶显示模组的胶框宽度则直接关系到电子产品边框的宽度。
通常的做法是通过压缩胶框侧壁的厚度以及减少遮光胶带的宽度来达到整个模组窄边框的要求。但是由于导光板、光学膜片与胶框内壁不可避免地存在间隙，一部分未进入导光板的光线会在间隙中传播，不经过光学膜片的处理，这部分光线的亮度比正常出射的光线要高。同时由于遮光胶带的宽度减少，在间隙中传播的光线会有比普通背光更大的几率进入玻璃，即为漏光，表现为屏幕四周的亮线。这种窄边框的设计有较大的漏光风险，可能会影响液晶显示模组的显示效果与客户体验。
【发明内容】
本发明主要解决的技术问题是提供一种能减少漏光的液晶显示模组，以及配置有该液晶显示模组的液晶显示器及移动终端，能够解决液晶显示模组漏光的问题。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种液晶显示模组，包括：
背光模组，其包括胶框、导光板及设于导光板上的光学膜片； 及
显示面板，叠置于胶框和导光板上方并抵靠胶框；
其中，所述胶框设于导光板的外周，与导光板之间设有间隙，所述胶框面向导光板的内表面具有将光线散射或反射的不平坦区域。
其中，不平坦区域由磨砂工艺形成。
其中，胶框朝向导光板的入光面的内表面具有不平坦区域。
其中，胶框朝向导光板的出光面的内表面具有不平坦区域。
其中，不平坦区域为平滑的波浪状表面或凹凸不平的颗粒状表面。
其中，不平坦区域连续分布于胶框的内表面。
其中，不平坦区域间隔分布于胶框的内表面。
其中，胶框为黑色或灰色。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示器，包括上述的液晶显示模组。
为解决上述技术问题，本发明采用的再一个技术方案是：提供一种移动终端，包括上述的液晶显示模组，液晶显示模组为移动终端的显示模组。
本发明的有益效果是：区别于现有技术的情况，本发明提供的液晶显示模组的胶框增设一不平坦区域，不平坦区域位于胶框朝向导光板的一侧，增加了胶框与导光板之间光线的散射度与反射次数。散射度的增加能将光线角度、强度均匀化，减小间隙整体的亮度；反射次数的增加能增大光强的损耗，有效降低间隙区的光线强度，缓解屏幕边缘漏光的现象。
【附图说明】
图1是本发明液晶显示模组较佳实施方式的内部结构简化示意图；
图2是本发明液晶显示模组中胶框的另一实施方式的内部结构简化示意图；
图3是本发明液晶显示模组中胶框的又一实施方式的内部结构简化示意图；
图4是本发明液晶显示器的示意图；
图5是本发明移动终端的示意图。
【具体实施方式】
参阅图1，本发明提供一种液晶显示模组100，液晶显示模组100包括一背光模组200以及一显示面板400。
背光模组200包括一胶框300、一导光板220及设于导光板220上的光学膜片240。导光板220面对光源的一面为入光面，导光板220除入光面外其他侧面为出光面。
胶框300夹置于导光板220的外周，胶框300与导光板220之间设有间隙。胶框300朝向导光板220的内表面具有将光线散射或反射的不平坦区域320。具体而言，胶框300内表面不平坦区域320朝向导光板220的入光面。不平坦区域320为平滑的波浪状表面。应理解，本发明中，不平坦区域320的表面不限于此，例如不平坦区域320的表面亦可为如图2所示的凹凸不平的颗粒状表面。
显示面板400叠置于胶框300和导光板220上方，显示面板400通过口字胶30粘贴固定于胶框300。显示面板400包括依次层叠设置的下偏振片422、液晶层424及上偏振片426。
液晶显示模组100还包括一设于胶框300的底面的反射膜50，导光板220设于反射膜50上。
在本实施方式中，不平坦区域320由磨砂工艺形成，可以在胶框230模具的对应面进行磨砂处理。由此，增加的磨砂面可以增加间隙汇总光线的散射度与反射次数。散射度的增加能将光线角度、强度均匀化，减小间隙整体的亮度；反射次数的增加能增大光强的损耗，有效降低间隙区的光强，缓解边缘漏光的现象。
请参阅图3，胶框300内表面不平坦区域320还可以朝向导光板220的出光面，当有光线入射到不平坦区域上时，光不再沿一个方向反射，而是以散射形式反射，从而使得入射到出光面的光线不再集中成一条亮线，避免了窄边框液晶显示模组边缘漏光。
优选地，本发明实施例中可以将不平坦区域320连续分布于胶框300的内表面，使制作工艺简单。
更为优选地，为了节省原材料，不平坦区域320还可以间隔分布于胶框300的内表面，使其能够将入射到侧面的光散射，避免产生亮线即可（见图2）。
因为白色材料为高反射性材料，其反射率大于或等于90％，而黑色或灰色材料为低反射性材料，其反射率小于或等于50％。本实施方式中选用低反射性材料，如黑色材料或灰色材料。
请参阅图4，本发明还提供一种液晶显示器500，包括上述的液晶显示模组100。
请参阅图5，本发明还提供一种移动终端600，包括上述的液晶显示模组100，液晶显示模组100为移动终端600的显示模组。
与现有技术相比，本发明提供的液晶显示模组100的胶框300增设一不平坦区域320，不平坦区域320位于胶框朝向导光板220的一侧，增加了胶框300与导光板220之间光线的散射度与反射次数。散射度的增加能将光线角度、强度均匀化，减小间隙整体的亮度；反射次数的增加能增大光强的损耗，有效降低间隙区的光线强度，缓解屏幕边缘漏光的现象。
以上仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种液晶显示模组，其中，所述液晶显示模组包括：
    背光模组，其包括一胶框、一导光板及设于导光板上的光学膜片； 及
    显示面板，叠置于所述胶框和所述导光板上方并抵靠所述胶框；
    其中，所述胶框设于所述导光板的外周，与所述导光板之间设有间隙，所述胶框面向所述导光板的内表面具有将光线散射或反射的不平坦区域。
  2. 根据权利要求1所述的液晶显示模组，其中，所述不平坦区域由磨砂工艺形成。
  3. 根据权利要求1所述的液晶显示模组，其中，所述胶框朝向所述导光板的入光面的内表面具有所述不平坦区域。
  4. 根据权利要求2所述的液晶显示模组，其中，所述胶框朝向所述导光板的出光面的内表面具有所述不平坦区域。
  5. 根据权利要求1所述的液晶显示模组，其中，所述不平坦区域为平滑的波浪状表面或凹凸不平的颗粒状表面。
  6. 根据权利要求1所述的液晶显示模组，其中，所述不平坦区域连续分布于所述胶框的内表面。
  7. 根据权利要求1所述的液晶显示模组，其中，所述不平坦区域间隔分布于所述胶框的内表面。
  8. 根据权利要求1所述的液晶显示模组，其中，所述胶框为黑色或灰色。
  9. 一种液晶显示器，包括权利要求1-8任一项所述的液晶显示模组。
  10. 一种移动终端，包括权利要求1-8中任一项所述的液晶显示模组，其中，所述液晶显示模组为移动终端的显示模组。
PCT/CN2015/081307 2015-06-01 2015-06-12 液晶显示模组、液晶显示器及移动终端 Ceased WO2016192129A1 (zh)

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