WO2018112998A1 - 一种显示模组 - Google Patents

一种显示模组 Download PDF

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Publication number
WO2018112998A1
WO2018112998A1 PCT/CN2016/112272 CN2016112272W WO2018112998A1 WO 2018112998 A1 WO2018112998 A1 WO 2018112998A1 CN 2016112272 W CN2016112272 W CN 2016112272W WO 2018112998 A1 WO2018112998 A1 WO 2018112998A1
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WO
WIPO (PCT)
Prior art keywords
light
panel
display module
module
shielding member
Prior art date
Application number
PCT/CN2016/112272
Other languages
English (en)
French (fr)
Inventor
张巍
Original Assignee
武汉华星光电技术有限公司
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Filing date
Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US15/328,389 priority Critical patent/US10670904B2/en
Publication of WO2018112998A1 publication Critical patent/WO2018112998A1/zh

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    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • 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
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133628—Illuminating devices with cooling means
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the invention belongs to the technical field of liquid crystal display, and in particular relates to a structural improvement of a display module.
  • Touch panels are increasingly used in various electronic devices such as mobile phones and tablet computers to enrich people's lives, and people's display quality requirements for touch panels are also increasing.
  • the TPM (Touch Module) component is partially filled with light after being inserted into the middle frame of the electronic device, and the bad performance is: when viewed from the side of the electronic device, there are bright white spots on the left and right sides of the visible area (VA area). Affects black visual effects.
  • the existing electronic device includes a middle frame 210 and a backlight module 230 and a panel module 220 installed in the middle frame 210 .
  • the backlight module 230 includes a plastic frame 231 and a light guide plate 232 correspondingly disposed in the plastic frame 231.
  • An optical film group 233 and a reflective film 234 respectively correspond to the upper surface and the lower surface of the light guide plate 232. It is disposed and connected to the plastic frame 231.
  • a light source 235 is disposed between one side of the light guide 232 and the bezel 231.
  • the light guide plate 232 Generally, most of the light emitted by the light source 235 is incident on the light guide plate 232. After being reflected by the reflective sheet 234, the light will be emitted from the upper surface of the light guide plate 232 into the optical film group 233, and then enter the panel module 220 to be processed. Enter the human eye. However, there is still a portion of the light that is "slip out" from the side 230B of the backlight module 230, and the side 220A of the panel module 220 or between them.
  • the plastic frame 231 and the reflective sheet 234 are connected by the double-sided tape 236, and the tightness of the joint is poor, so that the light is emitted from the plastic frame 231 and the reflective sheet 234 to reach the inner side wall of the middle frame 210; for example, the plastic frame
  • the shading function of the 231 itself is limited, and part of the light is projected from the plastic frame 231 to the inner side wall of the middle frame 210.
  • the plastic frame 231 and the panel module 220 are connected by the light shielding strip 237, and the connection is also present.
  • the problem of poor tightness causes a small portion of the light to exit between the frame 231 and the panel module 220 to reach the inner side wall of the middle frame 210 after the light energy is emitted from the optical film group 233.
  • the data Statistics can also confirm the existence of light leakage.
  • the brightness of the backlight module is AVG: 11500 nit
  • the light transmitted from the plastic frame and the double-sided tape is AVG: 690 nit
  • the light transmitted from the reflection sheet is AVG: 120 nit.
  • the panel module 220 After the light "leaks out” from the backlight module 230 and the panel module 220 reaches the inner side wall of the middle frame 210, a part of the light is reflected by the middle frame 210 back to the side portion 220A of the panel module 220, and passes through the panel module.
  • the side portion 220A is emitted through the touch panel 25. Since the display screen of the entire display module 200 is divided into an operable area (AA area), a visible area (VA area), and a black frame area (BM area) surrounding the AA area, at this time, these slave panels The light emitted from the module side 220A has entered the VA area. When the image color is switched to black, people will see a white spot, which affects the visual effect.
  • the present invention provides a display module including a middle frame:
  • a component magazine correspondingly disposed under the panel compartment and recessed in the middle frame for accommodating the backlight module
  • a light shield is further disposed between the panel module and the middle frame for blocking light from entering the panel module from a side of the panel module.
  • the light shielding member extends downward into the component compartment and is disposed between the backlight module and the middle frame.
  • the light shielding member extends down to the bottom of the component magazine.
  • the light shielding member is black dispensing.
  • the light shielding member is a black heat dissipation plate.
  • the backlight module includes a plastic frame, and a light guide plate correspondingly disposed in the plastic frame.
  • An optical film group and a reflective film are respectively disposed corresponding to the upper surface and the lower surface of the light guide plate, and are connected to a light source is disposed between one side of the light guide plate and the plastic frame.
  • the panel module includes a lower polarizer, a cover plate, an upper polarizer, an optical glue, and a touch panel which are stacked from bottom to top.
  • the display module provided by the invention adds a light shielding member prepared by using a black material between the middle frame and the panel module, and/or between the middle frame and the backlight module, and covers the light with the light shielding member, and the black material It absorbs light and effectively solves the light leakage phenomenon, reducing the chance of white spots caused by light entering from the side of the panel module due to reflection. If the light shielding member is made of a heat dissipating material, it can also assist the rapid heat dissipation.
  • FIG. 1 is a schematic structural view of a display module of the prior art
  • FIG. 2 is a schematic structural diagram of a display module according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of a display module according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a display module according to Embodiment 3 of the present invention.
  • the embodiment provides a display module, as shown in FIG. 2, which includes a middle frame 10 and is disposed in the same
  • the panel module 20 in the middle frame 10, the backlight module 30, and a light shielding member 40 are described.
  • the upper frame 10 is recessed with an open-faced panel compartment 11 and an upper open component compartment 12, and the component compartment 12 is correspondingly disposed under the panel compartment 11.
  • the panel module 20 and the backlight module 30 are respectively placed in the panel compartment 11 and the component magazine 12, so that the panel module 20 and the backlight module 30 are stacked on top of each other.
  • the panel module 20 of the present embodiment includes, in order from bottom to top, a lower polarizer 21 , a glass cover 22 , an upper polarizer 23 , an optical adhesive 24 , and a touch panel 25 .
  • the backlight module 30 includes a plastic frame 31 and a light guide plate 32 correspondingly disposed in the plastic frame 31.
  • An optical film group 33 and a reflection sheet 34 respectively correspond to the upper surface and the lower surface of the light guide plate 32.
  • a light source 35 is disposed between one side of the light guide plate 32 and the plastic frame 31.
  • the reflection sheet 34 and the optical film group 33 are fixedly disposed on the plastic frame 31 by the double-sided tape 36 that is shielded from light.
  • the plastic frame 31 and the panel module 20 are fixedly connected by a light shielding strip 37.
  • the light shielding member 40 is disposed between the panel module 20 and the middle frame 10 .
  • the light shielding member 40 of the present embodiment is disposed between the panel module 20 and the side wall 11a of the panel compartment for shielding or absorbing the light from the backlight module 30 and passing through the middle frame 10 The light of the panel module 20 is described.
  • the light shielding member 40 of the present embodiment can be disposed at the side portion 20A of the panel module 20 to more effectively block the reflected light of the center frame.
  • the light shielding member 40 may be made of black dispensing or a black heat dissipation plate.
  • the light reflected from the middle frame 10 can be absorbed by the black dispensing or heat sink to prevent light from entering from the side portion 20A of the panel module 20, solving the problem of the spot in the VA area.
  • the use of the light shielding material of the heat sink material can also facilitate the panel module 20 to solve the problem of heat dissipation.
  • the difference between the embodiment and the first embodiment is that, as shown in FIG. 3, the light shielding member 40 extends downward to the component magazine 12 and is disposed between the backlight module 30 and the middle frame 10. Specifically, the light shielding member 40 is disposed between the backlight module 30 and the side wall 12a of the component housing 12. The light shielding member 40 is disposed adjacent to the backlight module 30 and is attached to the outer side of the plastic frame 31 to facilitate the source. The blocking light is emitted from the backlight module 30.
  • the light shielding member 40 may be made of black dispensing or a black heat sink.
  • the light emitted from the backlight module 30 can be absorbed by the black dispensing or heat dissipation plate, and the light is prevented from reaching the middle frame 10 and reflected, thereby solving the problem of the spot in the VA area.
  • the use of the light shielding member of the heat sink material can also facilitate the backlight module 30 to solve the problem of heat dissipation.
  • the light shielding member 40 can further extend down to the bottom of the component compartment. As shown in FIG. 4, the entire component compartment 12 and the inner wall of the panel compartment 11 are covered. There is a light shielding member 40, that is, a black background is formed in the middle frame 10, the area for accommodating the panel module and the backlight module, and the light emitted from the panel module and the backlight module is absorbed by the black background.
  • the light shielding member 40 may be made of black dispensing or a black heat dissipation plate.
  • the light emitted from the backlight module 30 or the panel module 20 or between them is absorbed by the black dispensing or heat dissipation plate, and the light is prevented from being reflected and then enters from the side of the panel module, so that the problem of white spots in the VA area can be solved.

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

Abstract

一种显示面板，其包括中框（10）：以及凹设于中框（10）内的面板仓（11），用于容置面板模块（20）；组件仓（12），其对应设置于面板仓（11）下方、凹设于中框（10）内，用于容置背光模组（30）；还包括一光屏蔽件（40），其设置于面板模块（20）和中框（10）之间，用于阻止光从面板模块（20）侧部进入面板模块（20）。该显示面板通过在面板模块（20）与中框（10）之间引入光屏蔽件（40），能够阻止光从面板模块（20）的侧壁射入面板模块（20）中，解决可视区域白斑的问题，提高显示器的视觉效果。

Description

一种显示模组 技术领域
本发明属于液晶显示技术领域，具体地讲，涉及一种显示模组的结构改进。
背景技术
触控面板越来越多应用在各种例如手机、平板电脑等电子设备中，丰富人们的生活，人们对触控面板的显示质量要求也越来越高。
目前，TPM(触控模组)组件装入电子设备的中框后有部分漏光现象，不良的表现为：从电子设备的侧面观看，可视区域(VA区)左右两侧有发亮白斑，影响黑色视觉效果。
如图1所示，现有的电子设备包括中框210、以及装设于所述中框210中的背光模组230、面板模块220。其中，背光模组230包括胶框231，以及对应设置于所述胶框231中的导光板232，一光学膜组233、一反射片234分别对应于所述导光板232的上表面、下表面设置，且连接于所述胶框231上。导光232的一侧和胶框231之间设置有光源235。
一般地，光源235出射的光大部分均会射入导光板232中，经过反射片234的反射，光将从导光板232上表面出射进入光学膜组233、再进入面板模块220经过处理后射出，进入人眼。但是，仍然会有一部分的光容易从背光模组230的侧部230B、以及面板模块220的侧部220A或者是它们之间“漏出”。例如，胶框231与反射片234之间通过双面胶236连接，连接处紧密度不佳使得光从胶框231、反射片234之间射出到达中框210的内侧壁；又例如，胶框231本身的遮光功能也是有限的，部分光会从胶框231本身投射出来到达所述中框210的内侧壁；再例如，胶框231与面板模块220之间通过遮光条237相连，同样存在连接处紧密度不佳的问题使得光能从光学膜组233出射后，小部分光在胶框231与面板模块220之间也射出到达中框210的内侧壁。另外，从数据 统计也可以证实漏光现象的存在，例如背光模组的亮度为AVG：11500nit，从胶框和双面胶透射出的光为AVG：690nit；从反射片透射出的光为AVG：120nit。还有其他的原因或区域存在“漏光”的问题，在此无法穷尽。
这些从背光模组230、面板模块220中“漏出”的光在到达中框210的内侧壁后，一部分的光被中框210反射回到面板模块220的侧部220A，并穿过面板模块的侧部220A、经过触控面板25射出。由于整个显示模组200的显示屏上，分为可操作区域(AA区)、可视区域(VA区)，以及围绕所述AA区的黑框区域(BM区)，此时，这些从面板模块侧部220A出射的光已经进入VA区，当影像颜色切换为黑色时，人们将看到白色的光斑，影响视觉效果。
人们希望能找到一种方法克服上述视觉问题。
发明内容
为了解决上述现有技术存在的问题，本发明提供一种显示模组，其包括中框：以及
凹设于所述中框内的面板仓，用于容置面板模块；
组件仓，其对应设置于所述面板仓下方、凹设于所述中框内，用于容置背光模组；
还包括一光屏蔽件，其设置于所述面板模块和所述中框之间，用于阻止光从所述面板模块侧部进入所述面板模块。
其中，所述光屏蔽件往下延伸至所述组件仓内，设置于所述背光模组和所述中框之间。
其中，所述光屏蔽件往下延伸至所述组件仓底部。
其中，所述光屏蔽件为黑色点胶。
其中，所述光屏蔽件为黑色散热板。
其中，所述背光模组包括胶框，以及对应设置于所述胶框中的导光板，一光学膜组、一反射片分别对应于所述导光板的上表面、下表面设置、且连接于 所述胶框上；一光源设置于所述导光板的一侧与所述胶框之间。
其中，所述面板模块包括从下至上层叠设置的下偏光片、盖板、上偏光片、光学胶、触控面板。
有益效果：
本发明提供的显示模组，在中框与面板模块之间、和/或者中框与背光模组之间增设一采用黑色材质制备的光屏蔽件，利用光屏蔽件对光的遮盖、黑色材料对光线有吸收的作用，有效解决漏光现象，减少光因反射而从面板模块的侧部射入所导致白斑的机会。若光屏蔽件采用散热材质，也能起到辅助快速散热的效果。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是现有技术的显示模组结构示意图；
图2是本发明实施例1的显示模组结构示意图；
图3是本发明实施例2的显示模组结构示意图；
图4是本发明实施例3的显示模组结构示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
实施例1
本实施例提供一种显示模组，如图2所示，其包括中框10、以及设置于所 述中框10中的面板模块20、背光模组30，以及一光屏蔽件40。
其中，中框10中凹设有上敞口的面板仓11和上敞口的组件仓12，所述组件仓12对应设置于所述面板仓11下方。
所述面板模块20、背光模组30分别容置于所述面板仓11、组件仓12中，使得所述面板模块20、背光模组30上下层叠。
如图2所示，本实施例的所述面板模块20从下至上依次包括：层叠设置的下偏光片21、玻璃盖板22、上偏光片23、光学胶24、触控面板25。
背光模组30则包括：胶框31，以及对应设置于所述胶框31中的导光板32，一光学膜组33、一反射片34分别对应于所述导光板32的上表面、下表面设置、且连接于所述胶框31上；一光源35设置于所述导光板32的一侧与所述胶框31之间。反射片34、光学膜组33通过遮光的双面胶36固定设置于所述胶框31上。胶框31与所述面板模块20之间通过一遮光条37固定连接。
所述光屏蔽件40设置于所述面板模块20和所述中框10之间。具体地，本实施例的光屏蔽件40设置于面板模块20和面板仓的侧壁11a之间，用于遮挡或吸收从所述背光模组30射出、并经过所述中框10反射进入所述面板模块20的光。
优选地，本实施例的光屏蔽件40可设置在接近面板模块20的侧部20A处，更有效对中框的反射光形成阻截。该光屏蔽件40可以采用黑色的点胶制作，也可以是黑色的散热板。能够通过黑色的点胶或散热板吸收从中框10反射过来的光，阻止光从面板模块20的侧部20A进入，解决了VA区光斑的问题。并且，采用散热板材质的光屏蔽件，还可以有利于面板模块20解决散热的问题。
实施例2
本实施例与实施例1不同的在于，如图3所示，光屏蔽件40往下延伸至组件仓12，设置于背光模组30和中框10之间。具体地，光屏蔽件40设置于背光模组30和组件仓12的侧壁12a之间，光屏蔽件40接近背光模组30设置，贴于所述胶框31的外侧，有利于从源头上阻截光从背光模组30中射出。
类似地，该光屏蔽件40可以采用黑色的点胶制作，也可以是黑色的散热板。能够通过黑色的点胶或散热板吸收从背光模组30中射出的光，阻止光到达中框10后反射，解决了VA区光斑的问题。并且，采用散热板材质的光屏蔽件，还可以有利于背光模组30解决散热的问题。
实施例3
本实施例是实施例2的进一步优化，所述光屏蔽件40还可以进一步往下延伸至所述组件仓底部，如图4所示，整个组件仓12、面板仓11的内壁上均覆设有光屏蔽件40，即在中框10内、容置面板模块、背光模组的区域形成一黑色的背景，利用黑色背景将从面板模块、背光模组中射出的光吸收。
该光屏蔽件40可以采用黑色的点胶制作，也可以是黑色的散热板。通过黑色的点胶或散热板吸收从背光模组30中、或面板模块20中、或它们之间射出的光，阻止光反射后从面板模块侧部进入，同样能够解决VA区白斑的问题。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (11)

  1. 一种显示模组，其包括中框：以及凹设于所述中框内的面板仓，用于容置面板模块；组件仓，其对应设置于所述面板仓下方、凹设于所述中框内，用于容置背光模组；其中，
    还包括一光屏蔽件，其设置于所述面板模块和所述中框之间，用于阻止光从所述面板模块侧部进入所述面板模块。
  2. 根据权利要求1所述显示模组，其中，所述光屏蔽件往下延伸至所述组件仓内，设置于所述背光模组和所述中框之间。
  3. 根据权利要求2所述显示模组，其中，所述光屏蔽件往下延伸至所述组件仓底部。
  4. 根据权利要求1所述显示模组，其中，所述光屏蔽件为黑色点胶。
  5. 根据权利要求2所述显示模组，其中，所述光屏蔽件为黑色点胶。
  6. 根据权利要求3所述显示模组，其中，所述光屏蔽件为黑色点胶。
  7. 根据权利要求1所述显示模组，其中，所述光屏蔽件为黑色散热板。
  8. 根据权利要求2所述显示模组，其中，所述光屏蔽件为黑色散热板。
  9. 根据权利要求3所述显示模组，其中，所述光屏蔽件为黑色散热板。
  10. 根据权利要求1所述显示模组，其中，所述背光模组包括胶框，以及对应设置于所述胶框中的导光板，一光学膜组、一反射片分别对应于所述导光板的上表面、下表面设置、且连接于所述胶框上；一光源设置于所述导光板的一侧与所述胶框之间。
  11. 根据权利要求1所述显示模组，其中，所述面板模块包括从下至上层叠设置的下偏光片、盖板、上偏光片、光学胶、触控面板。
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