KR20170079244A - Liquid crystal dispaly device - Google Patents

Liquid crystal dispaly device Download PDF

Info

Publication number
KR20170079244A
KR20170079244A KR1020150189601A KR20150189601A KR20170079244A KR 20170079244 A KR20170079244 A KR 20170079244A KR 1020150189601 A KR1020150189601 A KR 1020150189601A KR 20150189601 A KR20150189601 A KR 20150189601A KR 20170079244 A KR20170079244 A KR 20170079244A
Authority
KR
South Korea
Prior art keywords
liquid crystal
panel
guide
guide panel
crystal panel
Prior art date
Application number
KR1020150189601A
Other languages
Korean (ko)
Inventor
장윤호
김지수
Original Assignee
엘지디스플레이 주식회사
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 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR1020150189601A priority Critical patent/KR20170079244A/en
Publication of KR20170079244A publication Critical patent/KR20170079244A/en

Links

Images

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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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

Landscapes

  • 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)

Abstract

A liquid crystal display according to an embodiment of the present invention includes a liquid crystal panel, a guide panel for supporting the liquid crystal panel, an adhesive member provided between the liquid crystal panel and the guide panel, The liquid crystal panel can be stably fixed to the adhesive guide portion by including the adhesive guide portion in a material having a strong adhesive force to the adhesive member than the guide panel.

Description

[0001] LIQUID CRYSTAL DISPALY DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device implementing a narrow bezel.

As portable electronic devices such as mobile communication terminals and notebook computers are developed, there is an increasing demand for flat panel display devices applicable thereto.

Examples of the flat panel display include a liquid crystal display device, a plasma display panel, a field emission display device, a light emitting diode display device, an organic light emitting diode (Organic Light Emitting Diode Display Device) have been studied.

Among such flat panel display devices, liquid crystal display devices are being applied to the fields of development of mass production technology, ease of driving means, low power consumption, realization of high image quality and realization of a large screen.

Since such a liquid crystal display device is an element which does not have a self-luminous element, a separate light source is required. Accordingly, a backlight unit having a light source such as an LED is provided on the back surface, and light is irradiated toward the front of the liquid crystal panel, thereby realizing an image that can be identified only through the light.

2. Description of the Related Art [0002] Recently, as a necessity for a liquid crystal display device having a narrow bezel increases, development of a model for reducing a bezel by removing a case top, which serves to fix a liquid crystal panel, is progressing.

However, the liquid crystal display device in which the conventional case top is removed has the following problems.

Specifically, when the case top is removed, a liquid crystal panel can not be fixed, so a means for fixing the liquid crystal panel is required. Conventionally, a method of applying an adhesive to a guide panel for supporting the liquid crystal panel, To fix the liquid crystal panel.

At this time, since the liquid crystal panel and the guide panel are made of different materials, there is a difference in adhesive force to an adhesive provided as a resin. For example, since the guide panel must have a strength enough to stably support the liquid crystal panel, the guide panel is manufactured by extruding a metal material so as to satisfy the requirement. In this case, the liquid crystal panel, The guide panel provided with a metal material has a weaker adhesive force than the liquid crystal panel with respect to the adhesive.

As described above, since the liquid crystal panel and the guide panel are made of different materials, the adhesiveness to the adhesive agent must be different from each other, and the problem that the liquid crystal panel is detached from the guide panel due to the difference in adhesive force .

Therefore, there is a growing need for a technique for stably supporting a liquid crystal panel in a liquid crystal display device for realizing a narrow bezel, and stably fixing the liquid crystal panel to a guide panel.

Disclosure of the Invention The present invention has been devised to overcome the above-described problems of the prior art, and it is an object of the present invention to provide a liquid crystal panel and a guide panel, Thereby stably fixing the liquid crystal panel.

Further, the present invention provides a guide panel provided in an area in contact with the adhesive member so as to compensate for a difference in adhesive force between the liquid crystal panel and the guide panel with respect to the adhesive member, To be stably fixed.

According to an aspect of the present invention, there is provided a liquid crystal display device including a liquid crystal panel, a guide panel for supporting the liquid crystal panel, a bonding member provided between the liquid crystal panel and the guide panel, The liquid crystal panel can be stably fixed to the adhesive guide portion by providing the adhesive guide portion in a material having a strong adhesive force to the adhesive member than the guide panel.

According to another aspect of the present invention, there is provided a liquid crystal display including a liquid crystal panel, a guide panel for supporting the liquid crystal panel, and an adhesive member provided between the liquid crystal panel and the guide panel to adhere the liquid crystal panel to the guide panel, The liquid crystal panel can be stably fixed to the adhesive guide portion by providing the guide panel in different areas from the other regions.

According to the present invention as described above, the following effects can be obtained.

According to the present invention, it is possible to stably fix the liquid crystal panel by providing the adhesive guide portion having a relatively high adhesive force on the guide panel having a low adhesive force to the adhesive member and bonding the liquid crystal panel to the adhesive guide portion through the adhesive member .

Further, according to the present invention, a liquid crystal panel can be stably supported and fixed by providing the guide panel as a different material in a region contacting with the adhesive member and the remaining region.

1 is a cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention.
2 is a cross-sectional view of a liquid crystal display device according to a second embodiment of the present invention.
3 is a perspective view showing an adhesion guide unit of a liquid crystal display device according to a second embodiment of the present invention.
4 is a cross-sectional view of the liquid crystal display device in which the "A" region is enlarged in Fig.
5A to 5C are cross-sectional views illustrating various shapes of an adhesion guide unit of a liquid crystal display device according to an embodiment of the present invention.
6 is a cross-sectional view of a liquid crystal display device according to a third embodiment of the present invention.
Figs. 7A and 7B are cross-sectional views of a liquid crystal display device in which the "A" region is enlarged in Fig.
8 is an exploded perspective view of a liquid crystal display device according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, and the like disclosed in the drawings for describing the embodiments of the present invention are illustrative, and thus the present invention is not limited thereto. Like reference numerals refer to like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. In the case where the word 'includes', 'having', 'done', etc. are used in this specification, other parts can be added unless '~ only' is used. Unless the context clearly dictates otherwise, including the plural unless the context clearly dictates otherwise.

In interpreting the constituent elements, it is construed to include the error range even if there is no separate description.

In the case of a description of the positional relationship, for example, if the positional relationship between two parts is described as 'on', 'on top', 'under', and 'next to' Or " direct " is not used, one or more other portions may be located between the two portions.

In the case of a description of a temporal relationship, for example, if the temporal relationship is described by 'after', 'after', 'after', 'before', etc., May not be continuous unless they are not used.

The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical spirit of the present invention.

It is to be understood that each of the features of the various embodiments of the present invention may be combined or combined with each other, partially or wholly, technically various interlocking and driving, and that the embodiments may be practiced independently of each other, It is possible.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 is a cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention.

1, a liquid crystal display device according to a first embodiment of the present invention includes a bottom cover 10, a guide panel 20, a backlight unit, and a liquid crystal panel 90 .

The bottom cover 10 and the guide panel 20 are configured to modularize the backlight unit and the liquid crystal panel 90 such that the backlight unit is accommodated in the bottom cover 10, The liquid crystal panel 90 is supported.

Particularly, in the embodiment of the present invention, the case top is removed so that the narrow bezel can be realized, and the guide panel 20 is fixed to the metal plate 20 so that the liquid crystal panel 90 can be stably supported through the guide panel 20. [ . That is, in order to stably support the liquid crystal panel 90, the guide panel 20 may be formed of a metallic material because a predetermined strength to withstand the weight of the liquid crystal panel 90 is required. For example, And may be formed by extruding aluminum.

The guide panel 20 includes a vertical portion 20a provided perpendicularly to the lower surface of the bottom cover 10 so as to support both the backlight unit and the liquid crystal panel 90, And a horizontal portion 20b provided parallel to the bottom surface of the bottom cover 10. The backlight unit is supported by the horizontal portion 20b of the guide panel 20, The liquid crystal panel 90 is supported by the vertical portion 20c of the guide panel 20. Specifically, the diffusion plate 50 and the optical sheet 60, which will be described later, of the backlight unit can be supported by the horizontal portion 20b. Since the boundary between the vertical part 20a and the horizontal part 20b is not limited to the shape shown in FIG. 1, the vertical part 20a and the horizontal part The boundaries in the scope can be changed into various forms.

The backlight unit is configured to provide light to the liquid crystal panel 90 so that an image can be displayed through a liquid crystal display device having no self light emitting element. The liquid crystal panel 90, housed in the bottom cover 10, A diffusion plate 50 for diffusing and refracting the light provided from the light source 40 to spread the light to the front surface of the liquid crystal panel 90 and a plurality of optical sheets And a reflector 30 provided on a back surface of the light source 40 and reflecting the light toward the liquid crystal panel 90.

Specifically, the diffusion plate 50 and the optical sheet 60 of the backlight unit are supported by the horizontal portion 20b of the guide panel 20, and the light source 40 and the reflection portion 30 are supported by the bottom And is stored in the cover 10.

According to an embodiment of the present invention, the light source 40 may be an LED having a hemisphere shape, but the present invention is not limited thereto.

The liquid crystal panel 90 is configured to display an image using light provided from the light source 40 and includes a lower substrate 90a and a lower substrate 90b which are bonded to each other with a liquid crystal layer (not shown) therebetween, ).

The liquid crystal display device according to an embodiment of the present invention may include an adhesive member 80 provided between the liquid crystal panel 90 and the guide panel 20 to fix the liquid crystal panel 90.

The adhesive member 80 may be formed of an elastic resin, but the present invention is not limited thereto. The adhesive member 80 may be a foam pad, an optical clear adhesive (OCA), or a double side tape tape or the like.

As described above, in the embodiment of the present invention, the case top is removed so as to realize the narrow bezel, and the adhesive member 80 for fixing the liquid crystal panel 90 to prevent the liquid crystal panel 90 from flowing .

In addition, the liquid crystal display device according to the embodiment of the present invention is configured to stably adhere and fix the liquid crystal panel 90, and further includes an adhesion guide part 70 provided on the guide panel 20 .

That is, in order to implement the narrow bezel, when the guide panel 20 is provided by extruding a metal material such as aluminum while removing the case top, the adhesive member 80, which is made of elastic resin, the liquid crystal panel 90 of the glass material has a strong adhesive force, but the guide panel 20 of the metal material does not have a strong adhesive force.

As a result, when the surrounding environment of the liquid crystal display device is in a high temperature state with the adhesive member 80 provided between the liquid crystal panel 90 and the guide panel 20, the liquid crystal panel 90, An external force is applied to the adhesive member 80 while the adhesive 20 expands. As described above, since the adhesive force of the guide panel 20 to the adhesive member 80 is weak, the adhesive member 80 is separated from the guide panel 20 and the liquid crystal panel 90 is separated from the guide panel 20 .

Therefore, in the embodiment of the present invention, the adhesion guide unit 70 may further include an adhesion guide unit 70 having an adhesive force to the adhesive member 80 that is stronger than the guide panel 20, The liquid crystal panel 90 is stably bonded to the adhesive guide portion 70 through the adhesive member 80 by arranging the liquid crystal panel 90 on the guide panel 20. Particularly, it is preferable that the adhesion guide portion 70 is made of a material having a similar value to the adhesive member 80, which has a predetermined deviation from the adhesive force between the liquid crystal panel 90 and the adhesive member 80 desirable.

Specifically, the adhesion guide unit 70 may be formed of a non-metallic material such as polycarbonate (PC) or acrylic (Polymethylmethacrylate). The present invention is not limited thereto and therefore the adhesive guide unit 70 may be provided on the adhesive member 80 of the liquid crystal panel 90 with a strong adhesive force to the adhesive member 80 rather than the guide panel 20, As shown in FIG. That is, depending on the material of the guide panel 20, the adhesion guide part 70 may be formed of a material having an adhesive strength corresponding thereto.

As described above, in the embodiment of the present invention, the adhesive guide portion 70 having a strong adhesive force to the adhesive member 80 is additionally provided on the guide panel 20 on which the liquid crystal panel 90 is supported, The liquid crystal panel 90 can be stably fixed.

More specifically, the structure of the adhesion guide portion 70 will be described later.

FIG. 2 is a cross-sectional view of a liquid crystal display device according to a second embodiment of the present invention, which is the same as the liquid crystal display device of FIG. 1 except that the shape of the guide panel 20 is changed. Therefore, the same reference numerals are assigned to the same components, and only the different components will be described below.

2, according to the second embodiment of the present invention, the guide panel 20 includes a vertical portion 20a perpendicular to the lower surface of the bottom cover 10, And a slope part 20c inclined with respect to the lower surface of the bottom cover 10. The diffusion plate 50 and the optical sheet 60 Is supported by the horizontal portion 20b of the guide panel 20 and the liquid crystal panel 90 is supported by the vertical portion 20a of the guide panel 20. [ Since the boundary between the vertical portion 20a, the horizontal portion 20b and the inclined portion 20c is not limited to that shown in FIG. 2, the vertical portion 20a, the horizontal portion 20b, The boundaries can be changed into various forms within a range in which the purpose of the inclined portion 20c can be achieved.

1, when the side surface of the guide panel 20 is provided perpendicularly to the lower surface of the bottom cover 10, the edge portion of the liquid crystal panel 90, A deviation may occur.

Therefore, in the second embodiment of the present invention, by providing the inclined portion 20c in the guide panel 20, the path of the light generated by the light source 40 is changed and supplied to the edge region of the liquid crystal panel 90 Light can be increased.

Specifically, the predetermined angle formed by the inclined portion 20c with respect to the bottom surface of the bottom cover 10 is determined by the light directing angle of the light source 40, the distance between the light source 40 and the guide panel 20, Can be set. In this case, the light directing angle means an angle at which the light from the light source 40 spreads. The light directing angle refers to an angle at which light is emitted from the bottom surface of the bottom cover 10 or a vector perpendicular to the bottom surface of the bottom cover 10 Directional angle can be expressed.

In addition, the guide panel 20 according to the embodiment of the present invention may be formed by integrating the support side and the guide panel included in the conventional liquid crystal display device. That is, in the conventional liquid crystal display device, the support side for supporting the diffusion plate and the optical sheet and the guide panel for supporting the liquid crystal panel exist separately. However, in the embodiment of the present invention, the support side and the guide panel may be integrally provided have.

Specifically, the guide panel 20 according to the embodiment of the present invention is formed as shown in FIG. 2 through extrusion of aluminum, and the horizontal plate 20b of the guide panel 20 forms the diffusion plate 50, And the side surfaces of the diffuser plate 50 and the optical sheet 60 are covered by the vertical portion 20c of the guide panel 20 and the liquid crystal panel 90 is supported It is possible to prevent the liquid crystal panel 90 from flowing without the case top.

As described above, in the second embodiment of the present invention, by arranging the adhesive guide portion 70 on the guide panel 20 in which the adhesive force to the adhesive member 80 is stronger than that of the guide panel 20 It is possible to fix the liquid crystal panel 90 more stably and to change the path of the light generated by the light source 40 by providing the inclined portion 20c in the guide panel 20, And thus uniform light can be provided to the liquid crystal panel 90.

3 is a perspective view showing an adhesion guide unit of a liquid crystal display device according to a second embodiment of the present invention.

3, the adhesion guide portion 70 of the liquid crystal display device according to the second embodiment of the present invention is provided on the guide panel 20, and the adhesion guide portion 70 and the liquid crystal panel 90 The liquid crystal panel 90 can be adhered to the adhesion guide portion 70 and fixed thereto.

2, the guide panel 20 of the liquid crystal display according to the second embodiment of the present invention includes a vertical part (not shown) for supporting the liquid crystal panel 90, a diffusion plate 50, (Not shown) for supporting the optical sheet 60 and an inclined portion (not shown) for changing the light path to increase the light supplied to the edge region of the liquid crystal panel 90 .

Since the adhesive guide portion 70 is formed to surround the vertical portion of the guide panel 20 on the vertical portion of the guide panel 20, It is proper that the adhesive member 80 is provided only on the adhesive guide portion 70 having a strong adhesive force without the adhesive member 80 provided on the adhesive member 20. Therefore, the liquid crystal panel 90 may be stably stuck to the guide panel 20 by the adhesive guide 70 having a strong adhesive force to the adhesive member 80.

At this time, the specific structure of the vertical portion, the horizontal portion and the inclined portion of the guide panel 20 according to the present invention is not limited to the shape shown in FIG. That is, the horizontal portion or the inclined portion of the guide panel 20 is not limited to a single structure, but a plurality of the guide portions 20 may be provided in parallel to the bottom surface of the bottom cover Configuration. In addition, since the structure of the guide panel 20 shown in FIG. 3 is only one embodiment, it can be provided with various structures that can perform the role of the guide panel 20 described above.

Hereinafter, a specific structure of the adhesion guide unit 70 of the liquid crystal display device according to the embodiment of the present invention will be described.

4 is a cross-sectional view of the liquid crystal display device in which the "A" region is enlarged in Fig.

4, in the embodiment of the present invention, an adhesive guide unit 70 is additionally provided on the guide panel 20, and a liquid crystal panel (not shown) is attached to the adhesive guide unit 70 through an adhesive member 80. [ The liquid crystal panel 90 can be stably fixed by adhering the liquid crystal panel 90 to the liquid crystal panel 90.

More specifically, the adhesion guide part 70 includes a base part 70a provided on a vertical part 20a of the guide panel 20, a base part 70b connected to one side of the base part 70a, A first extension portion 70b which extends to the inside of the horizontal portion 20b of the guide panel 20 while covering the inner surface of the guide portion 20a and a second extension portion 70b which is connected to the other side of the base portion 70a, And a second extension portion 70c extended to surround the outer surface.

In this case, the inner side means the side facing the polarizing plate 50 and the optical sheet 60 from the inside of the liquid crystal display device, and the outer side means the side facing the outside from the outside of the liquid crystal display device.

Specifically, as described above, since the guide panel 20 is made of a metal material and the adhesive guide portion 70 is formed of a non-metallic material, the adhesive guide portion 70 is formed on the guide panel 20 When the adhesive member is used to fix the liquid crystal panel 90, the problem of the liquid crystal panel 90 falling off due to the weak bonding force between the adhesive member and the guide panel 20 may occur.

Therefore, in the embodiment of the present invention, the adhesive guide part 70 is provided on the guide panel 20 and extends to the inside of the guide panel 20 in a part of the area, The adhesive guide portion 70 may be fixed on the guide panel 20 without the adhesive guide portion 70. [

The first extension portion 70b is bent at one side not connected to the base portion 70a to the inside of the vertical portion 20a or the horizontal portion 20b and the second extension portion 70c May be formed by bending one side not connected to the base portion 70a to the inside of the vertical portion 20a.

Since the first extension portion 70b and the second extension portion 70c are bent inside the guide panel 20 as described above, even if an external force is generated in the adhesion guide portion 70, 70 are fixedly coupled without being spaced apart from the guide panel 20.

Hereinafter, various embodiments of the adhesion guide portion 70 having a structure different from the above structure will be described.

5A to 5C are cross-sectional views illustrating various shapes of an adhesion guide unit of a liquid crystal display device according to an embodiment of the present invention.

5A shows a state in which the first extended portion 70b is bent twice inside the horizontal portion 20b of the guide panel 20 and the second extended portion 70c is bent FIG. 5B is a view showing an adhesive guide portion 70 bent inwardly of the vertical portion 20a. FIG. 5b shows a state in which the first extended portion 70b is bent twice in different directions from the inside of the guide panel 20 And the second extension portion 70c is an adhesive guide portion 70 which is bent to the inside of the vertical portion 20a of the guide panel 20 and is longer than the first extension portion 70b The first extension 70b is bent twice in different directions from the inside of the guide panel 20 and the second extension 70c is bent in the vertical direction of the guide panel 20, (70) which is bent to the inside of the first extension part (20a) and is shorter than the first extension part (70b).

5A to 5C illustrate various embodiments of the adhesion guide unit 70 according to the embodiment of the present invention, but the present invention is not limited thereto. That is, the adhesive guide unit 70 may be provided on the guide panel 20 and may be bent in various shapes that may be fixed.

As shown in FIGS. 5A to 5C, the adhesive guide 70 may be attached to the guide panel 20 in a manner to surround the vertical portion of the guide panel 20, The guide panel 20 is formed so as to include a concave shape corresponding to the shape of the adhesion guide portion 70 and the adhesive guide portion 70 is formed on the guide panel 20, The adhesive guide portion 70 can be coupled to the guide panel 20 in such a manner that the adhesive guide portion 70 is inserted. However, since the present invention is not limited thereto, the adhesive guide portion 70 may be coupled to the guide panel 20 in various ways not shown.

6 is a cross-sectional view of a liquid crystal display device according to a third embodiment of the present invention, except that the guide panel 20 is formed of a different material without a separate adhesive guide part, Device. Therefore, the same reference numerals are assigned to the same components, and only the different components will be described below.

6, according to the third embodiment of the present invention, the guide panel 20 includes a first guide panel 21 provided in an area in contact with the adhesive member 80, and a first guide panel 21 The first guide panel 21 and the second guide panel 22 are made of different materials. The first guide panel 21 and the second guide panel 22 are formed of different materials.

Particularly, in the embodiment of the present invention, the case top can be removed so that the narrow bezel can be realized, and the diffuser plate 50, the optical sheet 60 and the liquid crystal panel 90 can be supported only by the guide panel 20 . That is, the guide panel 20 must satisfy a certain level of strength enough to support the diffusion plate 50, the optical sheet 60, and the liquid crystal panel 90.

Therefore, in the embodiment of the present invention, the second guide panel 22 is provided with a relatively stronger strength than the first guide panel 21 to support the diffuser plate 50 and the optical sheet 60, The upper first guide panel 21 can be supported together. Specifically, the first guide panel 21 supports the liquid crystal panel 90, and the second guide panel 22 supports the diffusion plate 50 and the optical sheet 60, It can be modularized.

The first guide panel 21 is made of a material having a strong adhesive force to the adhesive member 80 than the second guide panel 22 so that separation between the guide panel 20 and the adhesive member 80 And the liquid crystal panel 90 can be stably bonded.

That is, conventionally, the guide panel is formed in the same manner as metal extrusion so as to secure the strength of the guide panel. In this case, the adhesive member provided with the elastic resin maintains a strong adhesive force with the liquid crystal panel of the glass material, There is a problem that the liquid crystal panel does not strongly adhere to the guide panel, thereby causing the liquid crystal panel to fall off from the guide panel.

Therefore, in the embodiment of the present invention, the first guide panel 21 provided in the region directly in contact with the adhesive member 80 has a stronger adhesive force to the adhesive member 80 than the second guide panel 22 So that the liquid crystal panel 90 can be stably fixed through the adhesive member 80.

At this time, the first guide panel (21) can securely fix the liquid crystal panel (90) with respect to the entire area of the guide panel (20) And the second guide panel 22 is provided in an area that can satisfy a predetermined strength capable of stably supporting the liquid crystal panel 90 It is reasonable.

Hereinafter, a specific structure of the guide panel 20 of the liquid crystal display device according to the third embodiment of the present invention will be described.

Figs. 7A and 7B are cross-sectional views of a liquid crystal display device in which the "A" region is enlarged in Fig.

7A and 7B, in the embodiment of the present invention, the guide panel 20 includes a first guide panel 21 including an area in direct contact with the adhesive member 80, and a second guide panel 21 And a second guide panel 22 corresponding to the remaining area except for the second guide panel 22.

Particularly, since the first guide panel 21 and the second guide panel 22 are not stably coupled to each other, the first guide panel 21 and the second guide panel 22 May include a convex portion 21a and a concave portion corresponding to the convex portion 21a, respectively, in a region in contact with each other.

For example, as shown in FIGS. 7A and 7B, the first guide panel 21 may include a convex portion 21a inside the second guide panel 22, and the second guide panel 22 may include a concave portion having a shape corresponding to the convex portion 21a of the first guide panel 21.

When the first guide panel 21 and the second guide panel 22 are provided in a simple concavo-convex shape, when a force in the top surface direction of the liquid crystal panel 90 is applied to the first guide panel 21, The first guide panel 21 can be separated from the second guide panel 22 without a resistor.

Therefore, in the embodiment of the present invention, when the first guide panel 21 includes the convex portion 21a and the second guide panel 22 includes the concave portion, as shown in FIGS. 7A and 7B, The convex portion 21a of the first guide panel 21 may be bent in various shapes inside the second guide panel 22 to prevent the clearance.

That is, since the convex portion 21a of the first guide panel 21 is bent inside the second guide panel 22, even if an external force is applied to the first guide panel 21, the convex portion 21a The first guide panel 21 can be stably fixed to the second guide panel 22. [

However, since the present invention is not limited to this, it is also possible that the first guide panel 21 includes a concave portion, and the second guide panel 22 includes convex portions. That is, if it is necessary to increase the area of the second guide panel 22 so as to secure the strength of the entire guide panel 20, the second guide panel 22 may be provided so as to include the convex portion will be.

8 is an exploded perspective view of a liquid crystal display device including a backlight unit according to an embodiment of the present invention.

As shown in Fig. 8, the liquid crystal display includes a liquid crystal panel 90, a backlight unit 100, and a bottom cover 10. As shown in Fig.

The liquid crystal panel 90 plays a key role in image display and includes a lower substrate 90a and an upper substrate 90b which are bonded to each other with a liquid crystal layer interposed therebetween.

Although not shown in FIG. 8, a plurality of gate lines and data lines intersect the inner surface of the lower substrate 90a to define pixels, and thin-film transistors Thin are formed at the intersections of the gate lines and the data lines. Film transistors, TFTs, and the like are connected to the transparent pixel electrodes formed on the pixels in a one-to-one correspondence manner.

On the inner surface of the upper substrate 90b, for example, color filters of red (R), green (G), and blue (B) Lines, and black matrixes for covering non-display elements such as thin film transistors. In addition, a transparent common electrode covering these elements is provided.

However, the color filter is not necessarily formed on the upper substrate 90b. In the case of a color filter on TFT (COT) type liquid crystal panel 90, It is also possible that a color filter is provided on the TFT of the TFT 90a.

The printed circuit board 95 is connected to at least one edge of the liquid crystal panel 90 through a connection member such as a flexible printed circuit board (FPCB) or a tape carrier package (TCP) Lt; / RTI >

At this time, the printed circuit board 95 is divided into a gate driving circuit for scanning on / off signals of the thin film transistors to gate lines and a data driving circuit for transmitting image signals for each guide panel to the data lines, And may be positioned at two adjacent edges of the panel 90.

When the thin film transistor selected for each gate line is turned on by the on / off signal of the gate driving circuit to be scanned, the liquid crystal panel 90 having the above-described structure is supplied with the signal voltage of the data driving circuit through the data line to the corresponding pixel electrode And the alignment direction of the liquid crystal molecules is changed by the electric field between the pixel electrode and the common electrode, thereby exhibiting a difference in transmittance.

The liquid crystal display device according to the embodiment of the present invention is provided with a backlight unit 100 for providing light from the back surface of the liquid crystal panel 90 so that the difference in transmittance represented by the liquid crystal panel 90 is externally expressed .

The backlight unit 100 includes a light source package 110 and a diffusion plate 50 provided on the light source package 110, a plurality of optical sheets 60, And a guide panel 20 for guiding the light.

The light source package 110 includes a PCB (not shown) arranged to have a constant spacing along the longitudinal inner surface of the bottom cover 10, a reflector 30 and a plurality of light sources 40, .

In this case, the PCB may be a metal core PCB having a heat dissipating function. A heat sink is provided on the back surface of the metal core printed circuit board to receive heat from the respective light sources 40, It is also possible to emit.

The plurality of optical sheets 60 may include various functional sheets such as a reflective polarizing film called DBEF (Dual Brightness Enhancement Film) or a prism.

The light from the plurality of light sources 40 passes through the diffusion plate 50 and the optical sheet 60 in order and is incident on the liquid crystal panel 90. The liquid crystal panel 90, It is possible to display a high-luminance image externally.

In a conventional liquid crystal display device, such a liquid crystal panel and a backlight unit are modularized through a case top, a guide panel and a bottom cover. In the embodiment of the present invention, the case top is removed to realize a narrow bezel, The liquid crystal panel 90 is modularized by bonding the liquid crystal panel 90 to the top of the guide panel 20 so that the liquid crystal panel 90 can be fixed. 2 and 6, in the embodiment of the present invention, the guide panel 20 is provided as a vertical portion, a horizontal portion, and an inclined portion, and the diffusion plate 50 is provided through the horizontal portion and the inclined portion, And supports the liquid crystal panel 90 while covering the side surfaces of the diffusion plate 50 and the optical sheet 60 through the vertical portion.

The bottom cover 10 serves as a bottom case for housing the backlight unit 100. To this end, the edges of the corners are raised and the guide panel 20 (see FIG. 1) on the bottom cover 10, Are formed, respectively, and a predetermined space is formed therein.

A rectangular panel-shaped guide panel 20 mounted on the bottom cover 10 and covering the edges of the liquid crystal panel 90 and the backlight unit 100 is coupled to the bottom cover 10.

Particularly, in the embodiment of the present invention, as described above, the adhesion force to the adhesive member (not shown) is higher than that of the guide panel 20 so that the liquid crystal panel 90 can be stably stuck to the guide panel 20 (Not shown) may be additionally provided on the guide panel 20, or the guide panel 20 may be provided with a first guide panel (not shown) having a relatively strong adhesive force and a second guide panel The liquid crystal panel 90 can be prevented from being separated from the guide panel 20 due to a weak adhesive force between the guide panel 20 and the adhesive member.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the present invention is not limited to those embodiments and various changes and modifications may be made without departing from the scope of the present invention. . Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of protection of the present invention should be construed according to the claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

10: bottom cover 20: guide panel
30: reflector 40: light source
50: diffusion plate 60: optical sheet
70: Adhesive guide portion 80: Adhesive member
90: liquid crystal panel

Claims (9)

A liquid crystal panel;
A guide panel for supporting the liquid crystal panel;
An adhesive member provided between the liquid crystal panel and the guide panel; And
And an adhesion guide portion provided on the guide panel to adhere the liquid crystal panel by the adhesive member,
Wherein the adhesive guide portion is formed of a material having a strong adhesive force to the adhesive member than the guide panel. The method according to claim 1,
Wherein the adhesive guide portion includes a base portion provided in an area in contact with the adhesive member on the guide panel, a first extension portion connected to one side of the base portion and surrounding the inner side surface of the guide panel, And a second extension part connected to the other side of the base part and extending to cover the outer side surface of the guide panel. 3. The method of claim 2,
Wherein the first extension portion is bent at one side not connected to the base portion inside the guide panel,
And the second extension part is bent at one side not connected to the base part to the inside of the guide panel. The method according to claim 1,
Wherein the guide panel includes a horizontal portion provided parallel to a bottom surface of the bottom cover and a vertical portion provided perpendicularly to a bottom surface of the bottom cover,
And the adhesion guide portion is provided on the vertical portion. 5. The method of claim 4,
And a diffusion plate provided at a lower portion of the liquid crystal panel and supported by the guide panel,
Wherein the liquid crystal panel is supported by the vertical portion, and the diffusion plate is supported by the horizontal portion. The method according to claim 1,
Wherein the guide panel is made of a metal material, the adhesive member is made of an elastic resin, and the adhesive guide part is made of a non-metallic material. A liquid crystal panel;
A guide panel for supporting the liquid crystal panel; And
And an adhesive member provided between the liquid crystal panel and the guide panel to adhere the liquid crystal panel to the guide panel,
Wherein the guide panel comprises a first guide panel provided in an area in contact with the adhesive member and a second guide panel provided in an area other than the first guide panel, And is provided with a strong adhesive force to the adhesive member. 8. The method of claim 7,
And a diffusion plate provided at a lower portion of the liquid crystal panel and supported by the guide panel,
Wherein the liquid crystal panel is supported by the first guide panel and the diffuser plate is supported by the second guide panel. 8. The method of claim 7,
Wherein the first guide panel and the second guide panel each include a convex portion and a concave portion corresponding to the convex portion in an area in contact with each other so as to prevent clearance.
KR1020150189601A 2015-12-30 2015-12-30 Liquid crystal dispaly device KR20170079244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150189601A KR20170079244A (en) 2015-12-30 2015-12-30 Liquid crystal dispaly device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150189601A KR20170079244A (en) 2015-12-30 2015-12-30 Liquid crystal dispaly device

Publications (1)

Publication Number Publication Date
KR20170079244A true KR20170079244A (en) 2017-07-10

Family

ID=59355415

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150189601A KR20170079244A (en) 2015-12-30 2015-12-30 Liquid crystal dispaly device

Country Status (1)

Country Link
KR (1) KR20170079244A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109814293A (en) * 2017-11-20 2019-05-28 群创光电股份有限公司 Backlight module and display device
US10901252B2 (en) 2018-01-25 2021-01-26 Samsung Display Co., Ltd. Display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109814293A (en) * 2017-11-20 2019-05-28 群创光电股份有限公司 Backlight module and display device
CN109814293B (en) * 2017-11-20 2022-03-01 群创光电股份有限公司 Backlight module and display device
US10901252B2 (en) 2018-01-25 2021-01-26 Samsung Display Co., Ltd. Display device

Similar Documents

Publication Publication Date Title
CN108333822B (en) Liquid crystal display device having a plurality of pixel electrodes
TWI615656B (en) Liquid crystal display device
US10473848B2 (en) Display panel and display apparatus including the same
KR102050382B1 (en) Liquid Display Apparatus
CN103810942A (en) Curved display apparatus
KR102230296B1 (en) Display device
KR20170012659A (en) Backlight unit and liquid crystal dispaly device including the same
US20190163008A1 (en) Display device and multi display device using the same
KR102460231B1 (en) Backlight unit and liquid crystal dispaly device including the same
US20190129236A1 (en) Display device
US20160334560A1 (en) Display device including accommodating member
US10025126B2 (en) Display device
US8794778B2 (en) Top chassis assembly and display device having the same
KR101536126B1 (en) Liquid crystal display device
KR102001855B1 (en) Liquid crystal display device
KR20140068734A (en) Liquid crystal display apparatus
KR101463683B1 (en) Liquid Crystal Display Device
KR20160038148A (en) Display device and method for fabricating the same
KR20170079244A (en) Liquid crystal dispaly device
US20160018589A1 (en) Display device
KR20170077721A (en) Liquid crystal display device
US20150092385A1 (en) Display apparatus
KR20220075846A (en) Display device
KR102372343B1 (en) Display Device
CN111694186A (en) Display device