WO2016101375A1 - 一种液晶显示器 - Google Patents

一种液晶显示器 Download PDF

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Publication number
WO2016101375A1
WO2016101375A1 PCT/CN2015/071224 CN2015071224W WO2016101375A1 WO 2016101375 A1 WO2016101375 A1 WO 2016101375A1 CN 2015071224 W CN2015071224 W CN 2015071224W WO 2016101375 A1 WO2016101375 A1 WO 2016101375A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
backlight module
crystal panel
side wall
Prior art date
Application number
PCT/CN2015/071224
Other languages
English (en)
French (fr)
Inventor
郭庆
谢晨
刘中杰
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/417,817 priority Critical patent/US9766498B2/en
Publication of WO2016101375A1 publication Critical patent/WO2016101375A1/zh

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    • 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
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    • 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
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    • G02F1/1333—Constructional arrangements; Manufacturing methods
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    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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    • 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 
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    • G—PHYSICS
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    • 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
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    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G02F1/133314—Back frames
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front frames
    • 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
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • 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
    • G02F1/133331—Cover glasses
    • 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
    • G02F1/133514—Colour filters
    • 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
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    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
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    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer

Definitions

  • the present invention relates to a liquid crystal display, and more particularly to a liquid crystal display capable of having a narrower side bezel.
  • liquid crystal displays have become an indispensable component of electronic products such as mobile phones and computers, as well as related mechanical devices. They can transmit certain information to people through display content, so that people can know the information in time.
  • the liquid crystal display mainly includes a liquid crystal panel, a backlight module and a plastic frame.
  • the backlight module includes an optical film set, a light guide plate and a reflective plate.
  • the plastic frame of the liquid crystal display usually needs to locate the backlight module to ensure that the backlight module is not easily damaged. If the positioning and protection functions are to be realized, the plastic frame needs to have a certain strength. In order to ensure the strength, the plastic frame must have a certain thickness and width.
  • the frame of the existing liquid crystal display With the narrow-framed liquid crystal display becoming more and more popular, the frame of the existing liquid crystal display is becoming narrower and narrower. However, since the structure of the plastic frame severely restricts the frame of the liquid crystal display, especially the side frame that restricts the two sides is narrowed, the side frame of the existing liquid crystal display cannot continue to be narrowed.
  • an object of the present invention is to provide a liquid crystal display capable of having a narrower side frame to meet the development needs of the liquid crystal display.
  • the present invention provides a liquid crystal display comprising: a liquid crystal panel; a backlight module bonded to the back surface of the liquid crystal panel, comprising an optical film group sequentially away from the liquid crystal panel, and a light guide plate having the light emitting element And a reflector; a glass cover attached to the outside of the liquid crystal panel and the backlight module, comprising a bottom wall and a side wall integrally extending toward the reflector from the outer edge of the bottom wall and abutting against the reflector, the side of the cover
  • the inner surface of the wall is in contact with both sides in the lateral direction of the liquid crystal panel and both sides in the lateral direction of the backlight module; respectively disposed at the top end and the bottom end of the backlight module and both of the side walls of the glass cover The inner surfaces are joined to the first and second positioning strips.
  • each of the locating strips includes a rectangular body and a stepped structure that is formed at an edge of the rectangular body.
  • the top end of the optical film set overlaps the stepped structure of the first positioning strip, and the bottom end thereof abuts against the second positioning strip, and the bottom end of the light guide plate overlaps the second positioning.
  • the strip has a stepped structure and its top end abuts against the first positioning strip.
  • both ends of each of the positioning strips are in contact with the inner surface of the side wall of the cover glass.
  • the optical film set includes a diffusion film, a brightness enhancement film, and a diffusion film that are sequentially disposed from the liquid crystal panel toward the direction of the light guide plate.
  • the height of the sidewall of the cover glass relative to the bottom wall is equal to the sum of the thicknesses of the backlight module and the liquid crystal panel.
  • the liquid crystal panel includes a polarizing film, a color filter substrate, a liquid crystal layer, an array substrate, and a polarizer, which are sequentially stacked, and a driving circuit and a printed circuit board.
  • a light absorbing coating is provided on the inner or outer surface of the side wall of the cover glass.
  • the reflector is configured such that when the reflector is in contact with the sidewall of the cover, the reflector on the exterior of the sidewall can conform to the outer surface of the sidewall of the cover after bending.
  • the glass cover has a thickness greater than 0.4 mm.
  • the liquid crystal display according to the present invention can realize the lateral positioning of the liquid crystal panel and the backlight module through the sidewall of the glass cover, and then the vertical alignment of the liquid crystal panel and the backlight module can be realized by the first and second positioning strips, and finally The interaction between the glass cover and the reflector enables longitudinal positioning of the liquid crystal panel and the backlight module, so that the liquid crystal panel and the backlight module can be fixed together, thereby preventing any relative movement thereof.
  • the lateral portion of the liquid crystal display is not provided with a structure similar to a plastic frame, and only the side wall of the glass cover having a very small thickness, the liquid crystal display of the present invention has a narrower side frame to satisfy the liquid crystal display. Development needs.
  • the liquid crystal display according to the present invention has a simple structure, is easy to assemble, is safe to use, and is easy to implement and popularize.
  • Figure 1 schematically shows a liquid crystal display according to the present invention
  • Figure 2 is a vertical sectional view of the liquid crystal display shown in Figure 1;
  • Figure 3 is a transverse cross-sectional view of the liquid crystal display shown in Figure 1;
  • the second positioning strip is identical in shape to the first positioning strip.
  • FIGS. 1 and 2 show a liquid crystal display 10 in accordance with the present invention.
  • the liquid crystal display 10 can be a thin film transistor liquid crystal display, and the English name is abbreviated as TFT LCD.
  • the liquid crystal display 10 includes a liquid crystal panel 5.
  • the liquid crystal panel 5 has a front surface and a back surface, and an end surface facing the human face is a front surface in use, and an end surface facing away from the human face is a back surface in use.
  • the liquid crystal panel 5 may be selected as a liquid crystal panel of a thin film transistor liquid crystal display, and the liquid crystal panel 5 includes a polarizing film, a color filter substrate, a liquid crystal layer, an array substrate and a polarizer, a driving circuit and a printed circuit board which are sequentially stacked.
  • the driving circuit is connected to the array substrate through a printed circuit board.
  • the liquid crystal panel of the thin film transistor liquid crystal display is well known to those skilled in the art and will not be described in detail herein.
  • V represents a vertical or vertical direction
  • L represents a longitudinal direction
  • T represents a lateral direction
  • a top end is a portion in the vertical direction V near the upper portion
  • a bottom end is a portion in the vertical direction V near the lower side, the side portion It is the part of the horizontal T that is close to the left or near the right.
  • the liquid crystal display 10 further includes a backlight module 6 that is bonded to the back surface of the liquid crystal panel 5.
  • the backlight module 6 is used to supply the liquid crystal panel 5 with a desired light source so that it can clearly display a picture.
  • the backlight module 6 includes an optical film group 61 that is sequentially away from the liquid crystal panel 5, a light guide plate 62 having a light-emitting element (not shown), and a reflection plate 63.
  • the light-emitting element may be selected as an LED lamp capable of adjusting brightness to adjust the brightness of the liquid crystal display 10.
  • the reflecting plate 63 may also be referred to as a light reflecting film, and the light emitting elements are well known to those skilled in the art and will not be described in detail herein.
  • the optical film set 61 may include a direction from the liquid crystal panel 5 toward the light guide plate 62.
  • a diffusion film, a brightness enhancement film, and a diffusion film are arranged in a sub-stage.
  • the diffusion film, the brightness enhancement film and the diffusion film are all well known to those skilled in the art and will not be described in detail herein.
  • the optical film group 61 may have other structures, such as a structure formed by adding or subtracting the corresponding film.
  • the liquid crystal display 10 further includes a cover glass 3 that is fastened outside the liquid crystal panel 5 and the backlight module 6.
  • the thickness of the cover glass 3 needs to be greater than 0.4 mm.
  • the cover glass 3 includes a bottom wall 3a parallel to the liquid crystal panel 5 and a side wall 3b extending integrally from the outer edge of the bottom wall 3a toward the reflection plate 63 and capable of abutting against the reflection plate 63, which is illustrated by FIG. 2 and 3 can be clearly displayed. As shown in FIG.
  • the liquid crystal display 10 further includes a first portion that is disposed at the top end of the backlight module 6 (i.e., the upper end portion in the vertical direction V) to be engaged with the inner surface of the side wall 3b of the cover glass 3.
  • a first portion that is disposed at the top end of the backlight module 6 (i.e., the upper end portion in the vertical direction V) to be engaged with the inner surface of the side wall 3b of the cover glass 3.
  • the two positioning strips can realize the vertical positioning of the liquid crystal panel 5 and the backlight module 6, that is, the positioning in the vertical direction V.
  • the first positioning strip 7a and the second positioning strip 7b are both made of a rubber material.
  • the longitudinal positioning of the liquid crystal panel 5 and the backlight module 6 that is, the positioning in the longitudinal direction L can be achieved.
  • the liquid crystal panel 5 and the backlight module 6 can be fixed together, thereby preventing any relative movement between them.
  • the liquid crystal display 10 of the present invention has a narrower circumference. Side borders to meet the development needs of liquid crystal displays.
  • the first locating strip 7a and the second locating strip 7b each comprise a rectangular body 71 and a stepped structure 72 (see FIG. 4) formed at an edge of the rectangular body 71. It can be seen that the first positioning strip 7a and the second positioning strip 7b have the same shape.
  • the so-called step structure 72 is a slit formed by cutting a rectangular strip at the edge of the rectangular body 71 for receiving and positioning the edge of the optical film group 61 or the light guide plate 62. It is easy to understand that the thickness of each positioning strip should be slightly larger than the thickness of the backlight module 6 in order to meet the positioning requirements.
  • the top end of the optical film group 61 (ie, the upper end portion in the vertical direction V) is overlapped in the step structure 72 of the first positioning strip 7a, and the bottom end thereof (ie, Vertical square Abutting on the second positioning strip 7b toward the lower end of the V; the bottom end of the light guide plate 62 (ie, the upper end portion in the vertical direction V) overlaps the step of the second positioning strip 7b
  • the structure 72 has its top end (i.e., the end portion in the vertical direction V near the lower side) abuts against the first positioning strip 7a. In this way, the liquid crystal panel 5 and the backlight module 6 can be stably positioned such that they cannot move along the longitudinal direction L, and at the same time, the backlight module 6 can be prevented from moving along the vertical direction V.
  • both ends of the first positioning strip 7a are in contact with the inner surface of the side wall 3b of the cover glass 3, and both ends of the second positioning strip 7b are also on the side of the cover glass 3
  • the inner surfaces of the walls 3b are in contact. In this way, the contact surface between each of the positioning strips and the liquid crystal panel 5 or the backlight module 6 can be increased, thereby further enhancing the positioning function of each positioning strip.
  • the height H of the side wall 3b of the cover glass 3 relative to the bottom wall 3a is substantially equal to the sum of the thicknesses of the backlight module 6 and the liquid crystal panel 5.
  • the glass cover 3 and the reflection plate 63 can longitudinally position the combination of the liquid crystal panel 5 and the backlight module 6 to prevent the liquid crystal panel 5 or the backlight module 6 from moving along the longitudinal direction L.
  • a light absorbing coating may be provided on the inner or outer surface of the side wall 3b of the cover glass 3.
  • the light absorbing coating may be selected as a black paint which can be coated on the side wall 3b of the cover glass 3, although other paints, paints or light absorbing materials may be selected.
  • the area of the reflecting plate 63 should be larger than the area of the bottom wall 3a of the cover glass 3.
  • the reflecting plate 63 comes into contact with the side wall 3b of the cover glass 3
  • the reflecting plate 63 outside the side wall 3b of the cover glass 3 can be bonded to the outer surface of the side wall 3b of the cover glass 3 after being bent. In this way, the stability of the connection of the reflecting plate 63 to the cover glass 3 can be effectively enhanced.
  • the reflector 63 and the cover glass 3 can be bonded by a double-sided tape to enhance the stability of the connection.
  • the liquid crystal display 10 has a narrower side frame to meet the development needs of the liquid crystal display.

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Abstract

一种液晶显示器（10），包括：液晶面板（5）；背光模组（6），包括具有发光元件的导光板（62）、光学膜片组（61）和反射板（63）；扣在液晶面板（5）和背光模组（6）外的玻璃罩（3），玻璃罩（3）的侧壁的内表面（3b）与液晶面板（5）的两侧部（5a，5b）和背光模组（6）的两侧部（6a，6b）均接触；分别设置在背光模组（6）的顶端和底端处的且均能与玻璃罩（3）的侧壁相接合的第一和第二定位胶条（7a,7b）。因而，能够具有更窄的侧边框。

Description

一种液晶显示器
相关申请的交叉引用
本申请要求享有于2014年12月26日提交的名称为“一种液晶显示器”的中国专利申请CN201410834748.1的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及一种液晶显示器，尤其是能够具有更窄侧边框的液晶显示器。
背景技术
如当今社会中，液晶显示器已成为手机、电脑等电子产品以及相关机械设备必不可缺的重要组成，其可通过显示内容向人们传递某种信息，以使人们能够及时获知该信息。
液晶显示器主要包括液晶面板、背光模组和胶框。该背光模组包括光学膜片组、导光板和反射板。其中，液晶显示器的胶框通常需要定位背光模组，以确保背光模组不易受到损伤。如果要实现定位和保护功能，就需要胶框具有一定强度，为了保证强度，胶框就必须具有一定的厚度和宽度。
随着窄边框的液晶显示器越来越受人们青睐，现有的液晶显示器的边框做得越来越窄。但是，由于胶框的结构严重制约液晶显示器的边框，尤其是制约靠近两侧的侧边框变窄，使得现有的液晶显示器的侧边框无法继续变窄。
因此，需要一种液晶显示器，其能具有更窄的侧边框，以满足液晶显示器的发展需求。
发明内容
为了解决上述问题，本发明的目的是提供一种液晶显示器，其能具有更窄的侧边框，从而满足液晶显示器的发展需求
本发明提供了一种液晶显示器，其包括：液晶面板；与液晶面板的背面相接合的背光模组，其包括依次远离液晶面板的光学膜片组、具有发光元件的导光板 和反射板；扣在液晶面板和背光模组外的玻璃罩，其包括底壁和从底壁的外缘处整体式朝反射板延伸并抵靠在反射板上的侧壁，玻璃罩的侧壁的内表面与液晶面板的横向上的两侧部和背光模组的横向上的两侧部均接触；分别设置在背光模组的顶端和底端处的且均能与玻璃罩的侧壁的内表面相接合的第一和第二定位胶条。
在一个实施例中，各定位胶条均包括矩形本体和开设在矩形本体的一个棱边处的台阶结构。
在一个实施例中，光学膜片组的顶端搭接在第一定位胶条的台阶结构内，而其底端抵靠在第二定位胶条上，导光板的底端搭接在第二定位胶条的台阶结构内，而其顶端抵靠在第一定位胶条上。
在一个实施例中，各定位胶条的两端均与玻璃罩的侧壁的内表面相接触。
在一个实施例中，光学膜片组包括从液晶面板朝导光板的方向依次布置的扩散膜、增亮膜和扩散膜。
在一个实施例中，玻璃罩的侧壁相对于底壁的高度等于背光模组与液晶面板的厚度之和。
在一个实施例中，液晶面板包括依次堆叠的偏光膜、彩膜基板、液晶层、阵列基板和偏光片，以及驱动电路和印刷电路板。
在一个实施例中，在玻璃罩的侧壁的内表面或外表面上设有吸光涂层。
在一个实施例中，反射板构造成当反射板与玻璃罩的侧壁接触后，处于该侧壁的外部的反射板能够在折弯后与玻璃罩的侧壁的外表面相贴合。
在一个实施例中，玻璃罩的厚度大于0.4mm。
根据本发明的液晶显示器通过玻璃罩的侧壁可实现液晶面板和背光模组的横向定位，再通过第一和第二定位胶条可实现液晶面板和背光模组的竖直方向定位，最后通过玻璃罩和反射板的相互作用可实现液晶面板和背光模组的纵向定位，使得液晶面板和背光模组能够被固定在一起，进而阻止它们发生任何相对运动。另外，由于液晶显示器的横向上的侧部并未设置类似于胶框的结构，而且只有厚度非常薄的玻璃罩的侧壁，因此本发明的液晶显示器具有更加狭窄的侧边框，从而满足液晶显示器的发展需求。
另外，根据本发明的液晶显示器的结构简单、装配容易，使用安全，便于实施推广应用。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。其中：
图1示意性地显示了根据本发明的液晶显示器；
图2是图1所示液晶显示器的竖向剖视图；
图3是图1所示液晶显示器的横向剖视图；以及
图4是根据本发明的液晶显示器的第一定位胶条，另外第二定位胶条与第一定位胶条的形状相同。
在附图中相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
具体实施方式
下面将结合附图对本发明作进一步说明。
图1显示了根据本发明的液晶显示器10。液晶显示器10可为薄膜晶体管液晶显示器，英文名称的缩写为TFT LCD。如图1和2所示，该液晶显示器10包括液晶面板5。液晶面板5具有正面和背面，使用时朝向人面部的端面为正面，使用时背向人面部的端面为背面。
液晶面板5可选为薄膜晶体管液晶显示器的液晶面板，该液晶面板5包括依次堆叠的偏光膜、彩膜基板、液晶层、阵列基板和偏光片，驱动电路和印刷电路板。驱动电路通过印刷电路板与阵列基板相连。其中，所述的薄膜晶体管液晶显示器的液晶面板属于本领域技术人员熟知的，在此不作详细说明。在各附图中，V代表竖向或竖直方向，L代表纵向，T代表横向；顶端是竖直方向V上靠近上方的部位，底端是竖直方向V上靠近下方的部位，侧部是横向T上靠近左方或靠近右方的部位。
如图1和图2所示，液晶显示器10还包括与液晶面板5的背面相接合的背光模组6。背光模组6用于向液晶面板5提供所需光源，以便其能够清晰地显示画面。该背光模组6包括依次远离液晶面板5的光学膜片组61、具有发光元件(未示出)的导光板62和反射板63。其中，发光元件可选为能够调节亮度的LED灯，以便调整液晶显示器10的亮度。反射板63还可以称为反光膜，其和发光元件均属于本领域技术人员熟知的内容，在此不作详细描述。
在一个实施例中，光学膜片组61可包括从液晶面板5朝导光板62的方向依 次布置的扩散膜、增亮膜和扩散膜。其中，扩散膜、增亮膜和扩散膜均属于本领域技术人员熟知的内容，在此不作详细描述。除此之外，光学膜片组61也可以为其他结构，例如添加或删减相应膜片后形成的结构。
该液晶显示器10还包括扣在液晶面板5和背光模组6外的玻璃罩3。为了保证强度需求，玻璃罩3的厚度需要大于0.4mm。玻璃罩3包括平行与液晶面板5的底壁3a和从底壁3a的外缘处整体式朝反射板63延伸的并能抵靠在反射板63上的侧壁3b，其由图2和图3可清晰显示。如图3所示，玻璃罩3的侧壁3b的内表面与液晶面板5的横向T上的两侧部(即侧部5a和侧部5b)以及背光模组6的横向T上的两侧部(即侧部6a和侧部6b)均相接触，以便实现液晶面板5和背光模组6的横向定位，即沿横向T的定位。
如图2所示，液晶显示器10还包括设置在背光模组6的顶端(即竖直方向V上靠上方的端部)处能与玻璃罩3的侧壁3b的内表面相接合的第一定位胶条7a，以及设置在背光模组的底端(即竖直方向V上靠下方的端部)处且能与玻璃罩3的侧壁3b的内表面相接合的第二定位胶条7b。这两个定位胶条能够实现液晶面板5和背光模组6的竖直方向定位，即沿竖向V的定位。其中，第一定位胶条7a和第二定位胶条7b均由橡胶材料制成。
然而，由于液晶面板5和背光模组6的组合体处于玻璃罩3和反射板63之间，由此可以实现液晶面板5和背光模组6的纵向定位，即沿纵向L的定位。通过上述三个方向的定位，可以把液晶面板5与背光模组6固定在一起，进而阻止它们之间发生任何相对运动。另外，由于液晶显示器10的横向上的两个侧部并未设置类似于胶框的结构，而且只有厚度非常薄的玻璃罩3的侧壁3b，因此本发明的液晶显示器10具有更加狭窄的的侧边框，从而满足液晶显示器的发展需求。
在一个实施例中，第一定位胶条7a和第二定位胶条7b均包括矩形本体71和开设在矩形本体71的一个棱边处的台阶结构72(见图4)。由此可知，第一定位胶条7a与第二定位胶条7b的形状相同。其中，所谓的台阶结构72是在矩形本体71的棱边处切除一个矩形条后形成的豁口，以用于接收并定位光学膜片组61或导光板62的边缘。容易理解，各定位胶条的厚度均应略大于背光模组6的厚度，以便满足定位需求。
在该液晶显示器10组装完成后，光学膜片组61的顶端(即竖直方向V上靠近上方的端部)搭接在第一定位胶条7a的台阶结构72内，而其底端(即竖直方 向V上靠近下方的端部)抵靠在第二定位胶条7b上；导光板62的底端(即竖直方向V上靠近上方的端部)搭接在第二定位胶条7b的台阶结构72内，而其顶端(即竖直方向V上靠近下方的端部)抵靠在第一定位胶条7a上。通过这种方式，能够稳定地定位液晶面板5和背光模组6，使得它们不能沿着纵向L进行运动，同时还可以防止背光模组6沿着竖向V进行运动。
在一个优选的实施例中，第一定位胶条7a的两端均与玻璃罩3的侧壁3b的内表面相接触，而第二定位胶条7b的两端也均与玻璃罩3的侧壁3b的内表面相接触。通过这种方式，能够增加各定位条与液晶面板5或背光模组6之间的接触面，从而进一步加强各定位胶条的定位作用。
在一个优选的实施例中，玻璃罩3的侧壁3b相对于底壁3a的高度H大致等于背光模组6与液晶面板5的厚度之和。通过这种方式，玻璃罩3和反射板63便能对液晶面板5和背光模组6的组合进行纵向定位，以避免液晶面板5或背光模组6沿着纵向L进行移动。
为了防止玻璃罩3的侧壁3b向外漏光，在玻璃罩3的侧壁3b的内表面或外表面上可设有吸光涂层。通过吸光涂层的吸光作用，能够有效地防止光从玻璃罩3的侧壁3b上向外照出。其中，吸光涂层可选为能够涂覆在玻璃罩3的侧壁3b上的黑色涂料，当然其也可选其他涂料、油漆或吸光物质。
为了增强反射板63与玻璃罩3连接的稳定性，反射板63的面积应大于玻璃罩3的底壁3a的面积。当反射板63与玻璃罩3的侧壁3b接触后，处于玻璃罩3的侧壁3b外的反射板63能够在折弯后与玻璃罩3的侧壁3b的外表面相贴合。通过这种方式，能够有效地增强反射板63与玻璃罩3连接的稳定性。在一个优选的实施例中，反射板63与玻璃罩3之间可通过双面胶粘合，以增强两者连接的稳定性。
综上可知，根据本发明的液晶显示器10具有更窄的侧边框，从而满足液晶显示器的发展需求。
虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (16)

  1. 一种液晶显示器，包括：
    液晶面板；
    与所述液晶面板的背面相接合的背光模组，其包括依次远离所述液晶面板的光学膜片组、具有发光元件的导光板和反射板；
    扣在所述液晶面板和背光模组外的玻璃罩，其包括底壁和从所述底壁的外缘处整体式朝所述反射板延伸并抵靠在所述反射板上的侧壁，所述侧壁的内表面与所述液晶面板的横向上的两侧部和背光模组的横向上的两侧部均接触；
    分别设置在所述背光模组的顶端和底端处的且均能与所述侧壁的内表面相接合的第一和第二定位胶条。
  2. 根据权利要求1所述的液晶显示器，其中，所述第一和第二定位胶条均包括矩形本体和开设在所述矩形本体的一个棱边处的台阶结构。
  3. 根据权利要求2所述的液晶显示器，其中，所述光学膜片组的顶端搭接在所述第一定位胶条的台阶结构内，而其底端抵靠在所述第二定位胶条上，所述导光板的底端搭接在所述第二定位胶条的台阶结构内，而其顶端抵靠在所述第一定位胶条上。
  4. 根据权利要求3所述的液晶显示器，其中，所述第一和第二定位胶条的两端均与所述侧壁的内表面相接触。
  5. 根据权利要求4所述的液晶显示器，其中，所述反射板构造成当所述反射板与侧壁接触后，处于所述侧壁的外部的所述反射板能够在折弯后与所述侧壁的外表面相贴合。
  6. 根据权利要求5所述的液晶显示器，其中，在所述侧壁的内表面或外表面上设有吸光涂层。
  7. 根据权利要求6所述的液晶显示器，其中，所述光学膜片组包括从所述液晶面板朝所述导光板的方向依次布置的扩散膜、增亮膜和扩散膜。
  8. 根据权利要求7所述的液晶显示器，其中，所述液晶面板包括依次堆叠的偏光膜、彩膜基板、液晶层、阵列基板和偏光片，以及驱动电路和印刷电路板。
  9. 根据权利要求8所述的液晶显示器，其中，所述侧壁相对于所述底壁的高度等于所述背光模组与所述液晶面板的厚度之和。
  10. 根据权利要求9所述的液晶显示器，其中，所述玻璃罩的厚度大于0.4mm。
  11. 根据权利要求1所述的液晶显示器，其中，所述光学膜片组包括从所述液晶面板朝所述导光板的方向依次布置的扩散膜、增亮膜和扩散膜。
  12. 根据权利要求1所述的液晶显示器，其中，所述侧壁相对于所底壁的高度等于所述背光模组与所述液晶面板的厚度之和。
  13. 根据权利要求1所述的液晶显示器，其中，所述液晶面板包括依次堆叠的偏光膜、彩膜基板、液晶层、阵列基板和偏光片，以及驱动电路和印刷电路板。
  14. 根据权利要求1所述的液晶显示器，其中，在所述侧壁的内表面或外表面上设有吸光涂层。
  15. 根据权利要求1所述的液晶显示器，其中，所述反射板构造成当所述反射板与侧壁接触后，处于所述侧壁的外部的所述反射板能够在折弯后与所述侧壁的外表面相贴合。
  16. 根据权利要求1所述的液晶显示器，其中，所述玻璃罩的厚度大于0.4mm。
PCT/CN2015/071224 2014-12-26 2015-01-21 一种液晶显示器 WO2016101375A1 (zh)

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