WO2019019874A1 - Appareil d'affichage à cristaux liquides - Google Patents

Appareil d'affichage à cristaux liquides Download PDF

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Publication number
WO2019019874A1
WO2019019874A1 PCT/CN2018/094152 CN2018094152W WO2019019874A1 WO 2019019874 A1 WO2019019874 A1 WO 2019019874A1 CN 2018094152 W CN2018094152 W CN 2018094152W WO 2019019874 A1 WO2019019874 A1 WO 2019019874A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
liquid crystal
crystal display
display device
disposed
Prior art date
Application number
PCT/CN2018/094152
Other languages
English (en)
Chinese (zh)
Inventor
刘亚东
杨福军
严方红
朱生林
饶春利
Original Assignee
深圳Tcl新技术有限公司
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Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Publication of WO2019019874A1 publication Critical patent/WO2019019874A1/fr

Links

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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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

Definitions

  • the present application relates to the field of display devices, and in particular, to a liquid crystal display device.
  • liquid crystal display devices such as liquid crystal displays, liquid crystal televisions, mobile phones, tablet computers, etc.
  • liquid crystal display devices commonly used in the market generally include a housing, a reflective sheet, a light guide plate, other optical films, and a display screen, wherein the housing includes a back plate. , plastic frame and front frame.
  • the components are sequentially assembled one by one according to the following parts, and the back plate ⁇ reflecting sheet ⁇ light guide plate ⁇ plastic frame ⁇ other optical film ⁇ display ⁇ front frame, thus, due to many components And scattered, resulting in complicated assembly process and low assembly efficiency.
  • the main object of the present application is to propose a liquid crystal display device aimed at improving the assembly efficiency of the liquid crystal display device.
  • the liquid crystal display device proposed by the present application includes:
  • the housing includes a backing plate, and opposite sides of the backing plate are respectively provided with sliding slots extending along the corresponding side edges, and the notches of the two sliding slots are opposite to each other;
  • the display module includes a support frame, and a display screen and an optical film set mounted on the support frame;
  • the opposite side frame strips of the support frame are respectively slidably mounted into the two sliding slots to mount the display module to the housing.
  • the housing further includes two side plates disposed on opposite sides of the backboard, each side plate being arcuately disposed such that the inner sides of the two side plates form two curved sides.
  • the chute is
  • the housing further includes two side plates disposed on opposite sides of the backboard, and two limiting portions respectively connecting the two side plates, wherein the limiting portion is opposite to the back plate.
  • the back plate, the two side plates and the two limiting portions jointly limit the two opposite sliding grooves.
  • the limiting portion is disposed as a unitary plate member extending along a corresponding side edge; or the limiting portion includes a plurality of plate members intermittently disposed in an extending direction of the corresponding side edge.
  • the side frame strip comprises a substrate and a partition disposed on an inner side of the substrate, and the display screen and the optical film component are disposed on opposite sides of the partition.
  • the side frame strip further includes a limiting plate disposed on an inner side surface of the substrate, the limiting plate is spaced apart from the partition plate, and a side edge of the display screen is located at the partition plate Between the limit plate and the limit plate.
  • the display screen and the optical film set are both fixed to the partition.
  • the support frame further includes a top frame strip, and the top ends of the two side frame strips are respectively spliced with the two ends of the top frame strip.
  • the housing further includes a top plate disposed on a top edge of the backboard, and a bottom edge of the backboard is vacant to form a sliding between the lower ends of the two sliding slots for the display module Installed into the installation port;
  • the display module slides into the housing from the mounting port, and the top of the display module abuts against the top plate.
  • the top plate is integrally formed with the back plate; or the top plate is a separate piece fixedly connected to a top edge of the back plate.
  • the housing further includes a top limiting plate connected to the top plate, the top limiting plate is opposite to the backing plate, and the backing plate, the top plate and the top limiting plate are common
  • the limiting slot extending along the length direction of the top plate is restricted, and the top of the display module abuts against the groove bottom of the limiting slot.
  • the bottom edge and the top edge of the backboard are vacant to form a mounting opening between the lower ends of the two sliding slots, and a decorative opening is formed between the upper ends of the two sliding slots; the display The module slides into the housing from the mounting opening or the decorative opening.
  • the liquid crystal display device further includes a top decorative member that closes the decorative opening.
  • the optical film set includes a light guide plate, and a bottom end of the support frame is vacant; the liquid crystal display device further includes a sealing component that closes the mounting opening, and the sealing component and the light guide plate There is a backlight strip between the bottom edges.
  • the sealing assembly includes a light strip heat sink
  • the light strip heat sink includes a first heat sink for mounting the back side of the backlight strip, and a side edge connected to the first heat sink
  • the second heat dissipation plate is fixedly attached to the back surface of the back plate.
  • the sealing assembly further includes a lower decorative frame strip
  • the lower decorative frame strip includes a decorative bottom plate, and a decorative front side panel and a decorative rear side panel respectively disposed on opposite sides of the decorative bottom panel
  • the decorative bottom panel A screen support strip is disposed between the bottom edge of the display screen and the backlight strip
  • the decorative rear side panel is fixedly disposed on an outer side surface of the second heat dissipation board, and the front side of the decoration The board is at least covered to the bottom edge of the display screen.
  • the display screen and the optical film set may be first mounted on the support frame to obtain a display module as a whole module, and then the display module is integrally
  • the display module can be mounted on the housing by slidingly mounting the opposite side frame strips of the support frame to the two sliding slots.
  • the installation space required for assembling the screws is reduced to make the liquid crystal display device thinner, achieving a narrow bezel effect.
  • the worker does not need to carry the housing when assembling the display module, and the assembly operation of the worker is more convenient.
  • FIG. 1 is a schematic exploded view of a liquid crystal display device of the present application in a back view
  • FIG. 2 is a sliding assembly view of the display module and the housing of the liquid crystal display device of FIG. 1 in a rear view;
  • Figure 3 is a partial enlarged view of A in Figure 1;
  • FIG. 4 is a sliding assembly view of the display module and the housing of the liquid crystal display device of FIG. 1 in a front view;
  • Figure 5 is a partial enlarged view of B in Figure 4.
  • FIG. 6 is a schematic exploded view of a display module of the liquid crystal display device of FIG. 1;
  • FIG. 7 is a schematic horizontal cross-sectional view of the display module and the housing of FIG. 2 after assembly.
  • Label name Label name 1 case 10 Chute 11 Backplane 12 Side panel 13 Limiting department 2 Display module twenty one Support frame 211 Side frame 212 Top frame 211a Substrate 211b Partition 211c Limit plate twenty two Display twenty three Optical film set 231 Light guide 232 A reflective sheet 233 DOP diaphragm 3 Sealing component 31 Light strip heat sink 311 First heat sink 312 Second heat sink 32 Lower decorative frame 321 Decorative floor 322 Decorative front side panel 323 Decorative rear side panel 4 Backlight strip 5 Screen support bar
  • the directional indication is only used to explain in a certain posture (as shown in the drawing)
  • first”, “second”, etc. in the embodiments of the present application, the description of "first”, “second”, etc. is used for descriptive purposes only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the application proposes a liquid crystal display device.
  • the liquid crystal display device includes:
  • the housing 1 includes a back plate 11 , and opposite sides of the back plate 11 are respectively provided with sliding slots 10 extending along corresponding sides, and the slots of the two sliding slots 10 are opposite to each other;
  • the display module 2 includes a support frame 21, a display screen 22 mounted on the support frame 21, and an optical film set 23.
  • the optical film 23 group includes a reflective sheet 232, a light guide plate 231, and other optical films (for example, the DOP film 233); the display screen 22 is usually an LCD screen.
  • the housing 1 further includes two side plates 12 disposed on opposite sides of the back plate 11 and two limiting portions 13 respectively connecting the two side plates 12, wherein the limiting portion 13 is opposite to the back plate 11
  • the back plate 11, the two side plates 12 and the two limiting portions 13 collectively limit the two opposite sliding grooves 10.
  • the back plate 11, the two side plates 12 and the two limiting portions 13 are preferably integrally formed to facilitate mass production of the casing 1.
  • the limiting portion 13 is disposed as a whole plate member extending along the corresponding side. It can be understood that the limiting portion 13 is located on the front side of the display screen 22, which is a certain degree of appearance.
  • the limiting portion 13 may also include a plurality of plate members intermittently disposed in the extending direction of the corresponding side edges. It can also achieve its limit function.
  • the housing 1 may not be provided with the limiting portion 13 on the side plate 12, and the side plate 12 is disposed as a curved plate, specifically, the vertical of each side plate 12
  • the cross section of the corresponding side extending direction is arranged in an arc shape protruding away from the other side plate 12 to form two curved grooves 10 on the inner side surfaces of the side plates 12, and correspondingly,
  • the outer side surface of the side frame strip 211 of the support frame 21 is adapted to the curved chute 10.
  • the display screen 22 and the optical film group 23 may be first mounted on the support frame 21 to obtain a display module 2 as a whole module, and then the display is performed.
  • the module 2 is slidably mounted to the two sliding slots 10 through the opposite side frame strips 211 of the support frame 21, so that the display module 2 can be mounted on the housing 1.
  • the modular installation reduces the fragmentation of the liquid crystal display device, simplifies the assembly process, improves assembly efficiency, and saves assembly screws between the housing 1 and the display module 2, thereby saving cost.
  • the appearance of the casing 1 is also improved, and the liquid crystal display device is made thinner by reducing the installation space required for assembling the screws, realizing a narrow bezel effect. Moreover, in the present application, the worker does not need to carry the housing 1 when assembling the display module 2, and the assembly operation of the worker is more convenient.
  • the sliding frame between the support frame 21 and the sliding slot 10 may be adapted, that is, the sliding between the support frame 21 and the sliding slot 10 does not have a gap;
  • the sliding assembly of the gap, that is, the sliding between the support frame 21 and the chute 10, may have a gap.
  • At least one of the outer surface of the side frame strip 211 of the support frame 21 and the inner groove surface of the sliding slot 10 is provided as a smooth surface to improve the smoothness of relative sliding between the two, thereby further improving the liquid crystal display.
  • the side frame strip 211 includes a substrate 211a and a partition plate 211b provided on the inner side surface of the substrate 211a.
  • the chute 10 is disposed on the outer side of the substrate 211a, and the display screen 22 and the optical film group 23 are disposed on opposite sides of the partition 211b.
  • the arrangement of the spacers 211b can provide attachment and support for the assembly of the display screen 22 and the optical film set 23 on the support frame 21.
  • the display module 2 when the display module 2 is assembled, the display screen 22 is first mounted on one side of the partition 211b to form a support frame-display assembly, and the support frame-display assembly is assembled by the clamp.
  • the other optical film for example, the DOP film 233
  • the light guide plate 231 and the reflection sheet 232 are sequentially mounted on the other side of the partition 211b in a direction perpendicular or nearly perpendicular to the partition 211b, thereby completing the display mode.
  • the display screen 22 and the optical film set 23 are preferably fixed to the partition plate 211b.
  • the display screen 22 can be adhesively fixed to the partition plate 211b, and the material used for bonding can be adhesive glue. It can also be a double-sided tape, which is not limited in this application.
  • the side frame strip 211 of the support frame 21 further includes a limiting plate 211c disposed on an inner side surface of the substrate 211a.
  • the limiting plate 211c is spaced apart from the partition plate 211b, and the side of the display screen 22 is The edge is located between the partition plate 211b and the limiting plate 211c; it can be understood that the display screen 22 is generally heavy, and only by its adhesion to the partition plate 211b, it is difficult to ensure that the display screen 22 can be stably fixed on the support frame 21, Therefore, the addition of the limiting plate 211c can restrict the display screen 22 from being separated from the support frame 21 in a direction away from the plate surface of the partition plate 211b.
  • the substrate 211a, the partition plate 211b, and the limiting plate 211c are integrally formed to facilitate mass production, which may be extrusion molding, injection molding, and the like.
  • the housing 1 further includes a top plate disposed on the top edge of the back plate 11, and the bottom edge of the back plate 11 is vacant to form a display module 2 between the lower ends of the two sliding slots 10. Enter the installation port.
  • the display module 2 slides into the housing 1 from the mounting opening, and the top of the display module 2 abuts against the top plate.
  • the top plate is preferably integrally formed with the back plate 11 to facilitate mass production of the casing 1; of course, in other embodiments, the top plate may also be a separate piece fixedly connected to the top edge of the back plate 11.
  • the two ends of the top plate are respectively connected to the top ends of the side plates 12.
  • the overall sliding assembly direction of the display module 2 is from the bottom edge of the back panel 11 toward the top edge, and the top panel is disposed to prevent the display module 2 from slipping during the overall sliding assembly process.
  • the phenomenon of the top edge of the backboard 11 is obtained.
  • the mounting opening of the housing 1 may also be formed at the top end of the housing 1 such that the overall sliding assembly direction of the display module 2 is from the top edge of the back panel 11 toward the bottom.
  • the direction of the side; for example, but not limited to, the bottom edge and the top edge of the back plate 11 are vacant to form a mounting opening between the lower ends of the two chutes 10, and a decorative opening is formed between the upper ends of the two chutes 10,
  • the display module 2 can be slid into the housing 1 from either the mounting port or the decorative opening.
  • the housing 1 preferably further includes a top limiting plate connected to the top plate, and the top limiting plate is opposite to the back plate 11 to jointly limit the length along the top plate by the back plate 11, the top plate and the top limiting plate.
  • the top of the display module 2 abuts against the bottom of the limiting slot, so that the limiting function of the display module 2 to prevent the display module 2 from being detached from the housing 1 can be assisted by the top limiting plate.
  • the top limiting plate is also preferably integrally formed with the top plate.
  • the support frame 21 further includes a top frame strip 212 , and two ends of the top frame strip 212 are respectively connected to the top ends of the side frame strips 211 .
  • the top frame strip 212 can be positioned to provide better edge protection for the display screen 22 and the optical film set 23.
  • the bottom end of the support frame 21 is vacant so that backlight light can enter from the bottom edge of the light guide plate 231 of the optical film group 23.
  • the cross-sectional shape of the top frame strip 212 is consistent with the cross-sectional shape of the side frame strip 211.
  • the top ends of the two side frame strips 211 are respectively spliced with the two ends of the top frame strip 212 to form the support frame 21, so that the assembly between the display screen 22 and the support frame 21 can be facilitated;
  • the top frame strip 212 and the side frame strips 211 may be dispersedly placed in the stitching orientation, and then the display screen 22 is placed flat in the middle of the three frame strips, and then the three frame strips are respectively pushed.
  • the respective edges of the display screen 22 are moved to the corresponding edges of the display screen 22, and the corresponding edges of the display screen 22 are located between the partitions of the corresponding frame strips and the limiting plates.
  • the splicing of the top frame strips 212 and the two side frame strips 211 are also completed. That is, the assembly between the display screen 22 and the support frame 21 is completed, which is convenient.
  • the liquid crystal display device further includes a sealing assembly 3 that closes the mounting opening to limit the display module 2 to the housing 1.
  • a backlight strip 4 is disposed between the sealing member 3 and the bottom edge of the light guide plate 231.
  • the backlight strip 4 faces the bottom edge of the light guide plate 231 so that the backlight light emitted from the backlight strip enters the light guide plate. 231; the back side of the backlight strip 4 is attached to the sealing assembly 3 to dissipate heat through the sealing assembly 3.
  • the appearance of the liquid crystal display device is affected, optionally, the liquid crystal display device Also included is a top decorative piece that closes the decorative opening, and the top decorative piece may be a decorative film piece or a top decorative frame strip as long as the decorative opening can be closed.
  • the support frame 21 may be disposed to include a bottom frame strip, and the top end is in a hollow form.
  • the sealing assembly 3 passes through the bottom frame of the support frame 21 .
  • the strip is abutted to the limit; the backlight strip 4 can be disposed on the inner side of the top plate of the housing 1 so that the backlight light emitted from the top of the light guide plate 231 is incident. It can be understood that, in this case, the backlight The power supply conductors that are powered by the strip 4 need to extend to the top of the housing 1.
  • the sealing assembly 3 further includes a light strip heat dissipating member 31, and the light strip heat dissipating member 31 includes a first heat dissipating plate 311 for attaching and mounting the back side of the backlight strip 4, and is connected to the first heat dissipating plate.
  • the second heat dissipation plate 312 of one side of the 311 is fixedly disposed on the back surface of the back plate 11.
  • the sealing assembly 3 further includes a lower decorative frame strip 32 including a decorative bottom plate 321 and a decorative front side panel 322 and a decorative rear side panel 323 which are respectively disposed on opposite sides of the decorative bottom panel 321 , wherein the decoration
  • the rear side plate 323 is fixedly disposed on the outer side surface of the second heat dissipation plate 312 to be indirectly fixed to the back plate 11;
  • the decorative front side plate 322 is at least covered to the bottom edge of the display screen 22 to avoid the bottom edge of the display screen 22 The components between the decorative bottom plates 321 are exposed.
  • a screen support strip 5 disposed alongside the backlight strip 4 is disposed between the decorative bottom plate 321 and the bottom edge of the display screen 22.
  • the sealing assembly 3 is preferably detachably connected to the housing 1, and may be, but not limited to, connected by a screw lock or a snap connection.
  • the second heat dissipation plate 312 and the back plate 11 and the decorative rear side plate 323 and the second heat dissipation plate 312 are detachably connected.

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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)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un appareil d'affichage à cristaux liquides comprenant : une coque, la coque comprenant une plaque arrière, deux côtés latéraux opposés de la plaque arrière étant respectivement pourvus d'une rainure de coulissement s'étendant le long du côté latéral correspondant, et des ouvertures des deux rainures coulissantes étant disposées l'une en face de l'autre ; et un module d'affichage, le module d'affichage comprenant un cadre de maintien, et un écran d'affichage et un groupe de films optiques montés sur le cadre de maintien. Deux bandes de cadre latérales opposées du cadre de maintien sont respectivement montées dans les deux rainures coulissantes de manière coulissante, de telle sorte que le module d'affichage soit monté sur la coque.
PCT/CN2018/094152 2017-07-27 2018-07-03 Appareil d'affichage à cristaux liquides WO2019019874A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710627241.2 2017-07-27
CN201710627241.2A CN107238963B (zh) 2017-07-27 2017-07-27 液晶显示设备

Publications (1)

Publication Number Publication Date
WO2019019874A1 true WO2019019874A1 (fr) 2019-01-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/094152 WO2019019874A1 (fr) 2017-07-27 2018-07-03 Appareil d'affichage à cristaux liquides

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CN (1) CN107238963B (fr)
WO (1) WO2019019874A1 (fr)

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CN107238963B (zh) * 2017-07-27 2020-06-09 深圳Tcl新技术有限公司 液晶显示设备
CN107302674A (zh) * 2017-07-27 2017-10-27 深圳Tcl新技术有限公司 液晶电视机
CN107333078A (zh) * 2017-07-27 2017-11-07 深圳Tcl新技术有限公司 液晶电视机
CN107884974B (zh) * 2017-10-11 2021-06-15 深圳Tcl新技术有限公司 液晶显示设备
CN112394573A (zh) * 2020-12-11 2021-02-23 张志成 一种侧入式led背光源模组及其使用方法
CN113867037B (zh) * 2021-09-15 2024-01-30 惠科股份有限公司 显示模组及其安装方法

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CN107238963A (zh) 2017-10-10

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