KR20140071819A - Liquid Crystal Display Device - Google Patents

Liquid Crystal Display Device Download PDF

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Publication number
KR20140071819A
KR20140071819A KR1020120139842A KR20120139842A KR20140071819A KR 20140071819 A KR20140071819 A KR 20140071819A KR 1020120139842 A KR1020120139842 A KR 1020120139842A KR 20120139842 A KR20120139842 A KR 20120139842A KR 20140071819 A KR20140071819 A KR 20140071819A
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KR
South Korea
Prior art keywords
liquid crystal
crystal display
display panel
fixing member
portion
Prior art date
Application number
KR1020120139842A
Other languages
Korean (ko)
Other versions
KR101984270B1 (en
Inventor
신승환
남철
김홍식
Original Assignee
엘지디스플레이 주식회사
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Priority to KR1020120139842A priority Critical patent/KR101984270B1/en
Publication of KR20140071819A publication Critical patent/KR20140071819A/en
Application granted granted Critical
Publication of KR101984270B1 publication Critical patent/KR101984270B1/en

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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308LCD panel immediate support structure, e.g. front and back frame or bezel
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133305Flexible substrates, e.g. plastics, organic film
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308LCD panel immediate support structure, e.g. front and back frame or bezel
    • G02F2001/133328Segmented frame
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46Fixing elements
    • G02F2201/465Snap -fit

Abstract

A liquid display device according to an embodiment includes a liquid display panel which includes a thin-film transistor substrate and a color filter substrate and has a predetermined curvature; a backlight unit which supplies illumination to the liquid display panel and has a predetermined curvature; a case which surrounds the side surface of the backlight unit and the liquid display panel; and a plurality of fixing members which are attached to the liquid display panel to fix the case. The fixing member has a curvature equivalent to the curvature of the liquid display panel.

Description

[0001] The present invention relates to a liquid crystal display device,

The embodiment relates to a liquid crystal display device.

As the information society develops, the demand for display devices for displaying images is increasing in various forms. A flat panel display device including a thin liquid crystal display (LCD), a plasma display (PDP) or an organic electroluminescent device (OLED) which is thinner and lighter than a conventional cathode ray tube display (CRT) has been actively researched and commercialized . Of these, liquid crystal display devices are widely used today because of their advantages of miniaturization, light weight, thinness, and low power driving.

In recent years, along with the research and development of the technical aspects of flat panel display devices, the need for research and development has been particularly emphasized in terms of design of products that can appeal to consumers. Accordingly, efforts are being made to minimize the thickness of the display device (slimness), and there is a growing need for a design in which aesthetics that appeals to the aesthetic sense of a consumer and stimulates purchase are promoted.

However, the development of a design for slimming down or improving the beauty of the display device which has been performed so far has been proceeded by adopting a constituent element of a conventional display device as it is and changing the structure of its constituent elements, There is a certain limit in developing a slim design or a new design.

In recent years, there have been proposed various types of display devices such as a borderless type having no step on the flat surface of a display device for slimming or large-sized display, or a NarrowBezel having a narrow width of an upper case or a front set cover exposed on a flat surface Have been developed.

In realizing the borderless type liquid crystal display device, when the liquid crystal display panel is implemented as a curved surface, the structure presses the liquid crystal display panel, and light leakage occurs.

Embodiments provide a liquid crystal display device that prevents light leakage in a liquid crystal display panel having a curved surface.

A liquid crystal display device according to an embodiment includes: a liquid crystal display panel including a thin film transistor substrate and a color filter substrate, the liquid crystal display panel having a constant curvature; A backlight unit supplying light to the liquid crystal display panel and having a predetermined curvature; A case surrounding the side surfaces of the liquid crystal display panel and the backlight unit; And a plurality of fixing members attached to the liquid crystal display panel to fix the case, wherein the fixing member has the same curvature as the liquid crystal display panel.

The liquid crystal display device according to the embodiment forms a fixing member attached to the lower part of the liquid crystal display panel so as to have the same curvature as the liquid crystal display panel to prevent light leakage due to contact with the case.

The liquid crystal display device according to the exemplary embodiment of the present invention forms the fixing member so as to include the glass fibers constituting the liquid crystal display panel to prevent local deformation of the liquid crystal display device even if there is a temperature change to prevent light leakage.

1 is a view showing a liquid crystal display device according to an embodiment.
2 is an exploded perspective view of a liquid crystal display device according to an embodiment.
3 is a cross-sectional view taken along line A-A 'of Fig.
4 is a cross-sectional view taken along line B-B 'of FIG. 2;
5 is a view showing a fixing member of the liquid crystal display device according to the embodiment.
6 is a view showing a fixing member of a liquid crystal display device according to another embodiment.
7 is a view showing a fixing member attaching position of the liquid crystal display device according to the embodiment.
8 is a view showing an attachment position of a fixing member of a liquid crystal display device according to another embodiment.

A liquid crystal display device according to an embodiment includes: a liquid crystal display panel including a thin film transistor substrate and a color filter substrate, the liquid crystal display panel having a constant curvature; A backlight unit supplying light to the liquid crystal display panel and having a predetermined curvature; A case surrounding the side surfaces of the liquid crystal display panel and the backlight unit; And a plurality of fixing members attached to the liquid crystal display panel to fix the case, wherein the fixing member has the same curvature as the liquid crystal display panel.

The case may include a plurality of protrusions received in the fixing member.

The fixing member may have a U-shape to accommodate the protrusion.

Wherein the fixing member comprises: a top surface portion and a bottom surface portion having a predetermined curvature and parallel to each other; And a connection portion for connecting the upper surface portion and the lower surface portion.

The upper surface portion includes a flat surface portion for receiving an adhesive member for attaching the liquid crystal display panel and the fixing member; And a first protrusion and a second protrusion protruding from both sides of the flat surface toward the liquid crystal display panel.

The first and second protrusions may include a first groove portion and a second groove portion which are recessed from the center region toward the planar portion.

The lower surface portion may include a third groove portion recessed from the lower surface of the lower surface portion toward the upper surface portion.

And a guide panel formed at a lower portion of the fixing member and supporting the optical sheet.

And a buffer member disposed on an inner surface of the case and formed between the guide panel and the liquid crystal display panel.

The buffer member may be formed with a groove for receiving the protrusion.

The fixing member may be formed of a material having the same thermal expansion coefficient as the substrate on which the liquid crystal display panel is formed.

The fixing member may include glass fibers constituting the substrate for forming the liquid crystal display panel.

The fixing member may include 5% to 100% of the glass fiber.

The gap between the fixing members located in the central region of the liquid crystal display panel may be narrower than the gap between the fixing members located in the region outside the central region.

The fixing member located in the central region of the liquid crystal display panel may be formed to be wider than the fixing member located in the region outside the central region.

1 is a view showing a liquid crystal display device according to an embodiment.

Referring to FIG. 1, a liquid crystal display device 1 according to an embodiment includes a curved liquid crystal display panel 10.

The liquid crystal display panel 10 may be formed in a curved shape having a predetermined curvature. The liquid crystal display panel 10 can be formed in a curved shape having a constant curvature so that the distance from the main viewing area to the central area of the liquid crystal display device 1 and the distance to both side areas can be made equal, Can be minimized, and the luminance can be improved.

A case 70 is formed on a side surface of the liquid crystal display panel 10. The case 70 is formed so as to surround the side surface of the liquid crystal display panel 10 so that the bezel can be omitted by implementing the borderless type liquid crystal display device 1,

FIG. 2 is an exploded perspective view of the liquid crystal display according to the embodiment, FIG. 3 is a sectional view taken along line A-A 'of FIG. 2, and FIG. 4 is a sectional view taken along line B-B' of FIG.

2 to 4, the liquid crystal display device according to the embodiment includes a liquid crystal display panel 10 for displaying an image and a backlight unit 20 for supplying light to the liquid crystal display panel 10.

The liquid crystal display panel 10 includes a thin film transistor substrate 11, a color filter substrate 13, and a liquid crystal layer (not shown) interposed between the two substrates so as to face each other and maintain a uniform cell gap .

A plurality of gate lines and data lines are formed on the thin film transistor substrate 11, and pixel regions at the intersections of the gate lines and the data lines are defined. The gate line and the data line are electrically connected to the thin film transistor, and the thin film transistor is electrically connected to the pixel electrode in the pixel region.

The color filter substrate 13 is provided with color filters of red (R), green (G) and blue (B) in a region corresponding to the pixel region of the thin film transistor substrate 11, A black matrix capable of preventing light leakage is provided in a region corresponding to the gate line, the data line, and the thin film transistor.

In addition, a common electrode may be formed on the surface of the color filter substrate 13 on which the thin film transistor substrate 11 faces.

An electric field is generated by the voltage difference applied to the pixel electrode and the common electrode, and the liquid crystal layer (not shown) is displaced by the electric field to adjust the light transmittance to display an image.

The backlight unit 20 may include a light source 30, a guide panel 40, and an optical sheet 50.

The light source 30 may include a light emitting diode 31, a light source substrate 33, and a light guide plate 37.

The light emitting diode 31 may be mounted on the light source substrate 33. The light emitting diode 31 may receive power from the light source substrate 33 and supply light to the light guide plate 37.

The light guide plate 37 converts light from the light emitting diodes 31 into surface light and provides the light to the liquid crystal display panel 10. The light guide plate 37 may include a pattern of a specific shape to supply a uniform surface light. The light guide plate 37 may be formed of PMMA (poly methylmethacrylate), PC (polycarbonate), acrylic, or silicon.

A reflective sheet (not shown) may be formed under the light guide plate 37. The reflection sheet (not shown) reflects the light from the light source 30 and transmits the light to the liquid crystal display panel 10.

In the embodiment, the light source 30 is configured such that the light emitting diode 31 is on the side surface, but the light emitting diode 31 may be formed of a lamp. The lamp may be a cold cathode fluorescent lamp (CCFL) or an external electrode fluorescent lamp (EEFL).

In addition, the light source 30 may be formed in a direct type in which the light emitting diodes 31 are provided on the side of the liquid crystal display panel 10 instead of the edge type.

The guide panel 40 may be positioned on the light guide plate 40 to support the optical sheet 50.

The optical sheet 50 may be positioned on the guide panel 40. The optical sheet 50 may include a plurality of prism sheets and a diffusion sheet. The optical sheet 60 may serve to diffuse and condense light from the light guide plate 37. [

The liquid crystal display panel 10 and the backlight unit 20 may be housed in the bottom cover 60 and the case 70. [

The bottom cover 60 may have a rectangular box shape whose upper surface is opened. The backlight unit 20 may be housed in the bottom cover 60.

The bottom cover 60 may support the guide panel 40.

The case 70 may have a rectangular frame shape. The case 70 can support the side surfaces of the liquid crystal display panel 10 and the backlight unit 20. The case 70 may be in contact with the side surface of the bottom cover 60. The case 70 may be engaged with the side surface of the bottom cover 60. The case 70 can be coupled to the bottom cover 60 through a fastening member (not shown) such as a screw.

A plurality of protrusions 71 may be formed on the inner surface of the case 70. The plurality of protrusions 71 may be integrally formed with the case 70.

The liquid crystal display panel 10, the light guide plate 37, the guide panel 50, the bottom cover 60, and the case 50 may have the same curvature and be formed in a curved shape.

A plurality of fixing members 90 are positioned between the liquid crystal display panel 10 and the guide panel 40. The plurality of fixing members 90 may be formed in a number corresponding to the protrusions 71. The fixing member 90 has a receiving groove 73 for receiving the protrusion 71 and may be formed in a U shape.

5 is a view showing the fixing member 90 of the liquid crystal display device according to the embodiment.

5, the fixing member 90 includes a top face portion 91, a bottom face portion 92, and a connecting portion 93 connecting the top face portion 91 and the bottom face portion 92 to each other .

The connection portion 93 may be formed in a direction perpendicular to the upper surface portion 91 and the lower surface portion 92. The fixing member 90 may have a receiving groove 73 by including a top face portion 91 and a bottom face portion 92 perpendicular to the connecting portion 93. The receiving groove 73 may receive the protrusion 71 of the case 70.

The upper surface portion 91 and the lower surface portion 92 may be formed in a curved shape having a constant curvature. The upper surface portion 91 is in contact with the liquid crystal display panel 10 and the lower surface portion 92 is in contact with the guide panel 92 so that the liquid crystal display panel 10 and the guide panel 92 Can be formed along the curved surface. In other words, the upper surface portion 91 and the lower surface portion 92 may have the same curvature as the liquid crystal display panel 10.

The upper surface portion 91 and the lower surface portion 92 may be curved so that the receiving groove 73 may have a constant curvature. The receiving groove 73 has a constant curvature, so that the protrusion 71 can be prevented from contacting the fixing member 90. Therefore, the shock from the case 70 is prevented from being transmitted to the liquid crystal display panel 10, thereby preventing light leakage.

The upper surface portion 91 may be attached to the liquid crystal display panel 10. The upper surface portion 91 may be attached to the lower surface of the thin film transistor substrate 11 located under the liquid crystal display panel 10. The lower surface portion 92 may be attached to the upper surface of the guide panel 40.

The upper surface portion 91 may include a first protrusion 94, a second protrusion 95, and a flat surface portion 96.

The first and second protrusions 94 and 95 are disposed on both sides of the flat surface portion 96 in the direction of the liquid crystal display panel 10 .

When the fixing member 90 is attached to the liquid crystal display panel 10, an adhesive member 83 is applied to the flat surface portion 96. The adhesive member 83 can adhere the fixing member 90 and the liquid crystal display panel 10 to each other. The adhesive member 83 may be a UV adhesive.

The adhesive member 83 applied to the flat surface portion 96 may be a material which is solidified by UV. The first and second protruding portions 94 and 95 may prevent the adhesive member 83 from flowing outside the planar portion 96.

Although not shown, an impact absorbing member (not shown) may be formed in the receiving groove 73. The shock absorbing member (not shown) may be formed in a region facing the protrusion 71. The shock absorbing member (not shown) may be formed on the lower surface of the upper surface portion 91 and the upper surface of the lower surface portion 92. The shock absorbing member (not shown) may be formed on one side of the connecting portion 93, on which the upper surface portion 91 and the lower surface portion 92 extend.

The shock absorbing member prevents the fixing member 90 and the protrusion 71 from contacting each other even if the protrusion 71 flows due to an external impact to prevent the light leakage of the liquid crystal display panel 10 can do.

The fixing member 90 may be formed of a material having a thermal expansion coefficient similar to that of the substrate on which the liquid crystal display panel 10 is formed. The fixing member 90 may include glass fibers constituting the substrate for forming the liquid crystal display panel 10. Alternatively, the fixing member 90 may be formed of the same material as the substrate on which the liquid crystal display panel 10 is formed. The fixing member may include 5% to 100% of glass fibers.

The thermal expansion coefficient of the material constituting the fixing member 90 is set to be similar to the substrate constituting the liquid crystal display panel 10 to prevent local deformation of the liquid crystal display device according to the external temperature.

2 to 4 will be described again.

A buffer member 80 may be formed under the liquid crystal display panel 10. The buffer member 80 may be positioned between the liquid crystal display panel 10 and the guide panel 40 in a region adjacent to the case 70 as shown in FIG. The buffer member 80 can support the liquid crystal display panel 10.

The buffer member 80 may be positioned between the protrusion 71 and the liquid crystal display panel 10 in the region where the protrusion 71 is formed. The buffer member 80 may be formed of a material that can be deformed by a pressure of a sponge or the like. The cushioning member 80 may be positioned between the protrusion 71 and the liquid crystal display panel 10 in a region where the protrusion 71 is formed as compared with a region where the protrusion 71 is not formed.

Although not shown, the buffer member 80 may have a groove in a region corresponding to the protrusion 71. The buffer member 80 may receive the protrusion 71 through the groove.

6 is a view showing a fixing member 90 of a liquid crystal display device according to another embodiment.

The fixing member 90 according to Fig. 6 is the same as the fixing member 90 except that it has a groove portion as compared with Fig. Therefore, in describing Fig. 6, the same reference numerals are assigned to the same components as those in Fig. 5, and a detailed description thereof will be omitted.

6, the fixing member 90 includes a top face portion 91, a bottom face portion 92, and a connecting portion 93 connecting the top face portion 91 and the bottom face portion 92 to each other .

The upper surface portion 91 may include a first protrusion 94, a second protrusion 95, and a flat surface portion 96.

A first groove 97 may be formed in a central region of the first protrusion 94. A second groove 98 may be formed in a central region of the second protrusion 95. The first groove 97 may be recessed from the upper surface of the first protrusion 94. The second groove portion 98 may be recessed from the upper surface of the second protrusion 95.

The first groove portion 97 and the second groove portion 98 may be formed higher than the flat portion 96. The first groove portion 97 and the second groove portion 98 may be formed higher than the plane portion 96 to prevent the adhesive member 83 from flowing outside the plane portion 96.

A third groove portion 99 recessed from the lower surface of the lower surface portion 92 may be formed in a central region of the lower surface portion 92.

Since the upper surface portion 91 and the lower surface portion 92 of the fixing member 90 have a curvature, wrinkles and splits may occur. The first groove portion 97, the second groove portion 98 and the third groove portion 99 are formed by being recessed from the upper surface portion 91 and the lower surface portion 92 so that the wrinkle and splitting of the fixing member 90 .

FIG. 7 is a view showing a fixing member mounting position of the liquid crystal display device according to the embodiment, and FIG. 8 is a view showing a mounting position of the fixing member of the liquid crystal display device according to another embodiment.

Referring to FIG. 7, a plurality of fixing members 90 of the liquid crystal display according to the embodiment are attached to the lower portion of the liquid crystal display panel 10. The plurality of fixing members 90 may be attached to a lower portion of the thin film transistor substrate 11 of the liquid crystal display panel 10.

The plurality of fixing members 90 may be formed at regular intervals.

The plurality of fixing members 90 may be attached at different intervals as shown in FIG. 8A.

For example, the plurality of fixing members 90 are spaced apart from each other by an interval d2 between the fixing members 90 in the central region, rather than an interval d1 between the fixing members 90 in the outer region of the liquid crystal display panel 10. [ As shown in Fig. When the liquid crystal display panel 10 is formed with a predetermined curvature, a load can be concentrated on a central region of the liquid crystal display panel 10. [

The distance d2 between the fixing members 90 in the central region is narrower than the distance d1 between the fixing members 90 in the outer region so as to effectively support the central region of the liquid crystal display panel 10 So that it is possible to prevent deterioration of image quality of light spots and the like and to protect the internal structure due to an external impact.

The plurality of fixing members 90 may have different widths and may be attached to the liquid crystal display panel 10 as shown in FIG. 8B.

The width d1 of the fixing member 90 attached to the outer peripheral region of the liquid crystal display panel 10 among the plurality of fixing members 90 is greater than the width d1 of the fixing member 90 attached to the central region of the liquid crystal display panel 10. [ The width d2 of the fixing member 90 can be increased.

The width d2 of the fixing member 90 in the central region is formed wider than the width d1 of the fixing member 90 in the outer region so as to effectively support the central region of the liquid crystal display panel 10 So that it is possible to prevent deterioration of image quality of light spots and the like and to protect the internal structure due to an external impact.

1: liquid crystal display device 10: liquid crystal display panel
11: thin film transistor substrate 13: color filter substrate
20: backlight unit 30: light source
31: light emitting diode 33: light source substrate
37: light guide plate 40: guide panel
50: optical sheet 60: bottom cover
70: Case 71:
80: buffer member 83: adhesive member
90: fixing member 91: upper surface portion
92: lower surface portion 93: connection portion
94: first protrusion 95: second protrusion
96: plane portion 97: first groove portion
98: second groove portion 99: third groove portion

Claims (14)

  1. A liquid crystal display panel including a thin film transistor substrate and a color filter substrate and having a constant curvature;
    A backlight unit supplying light to the liquid crystal display panel and having a predetermined curvature;
    A case surrounding the side surfaces of the liquid crystal display panel and the backlight unit; And
    And a plurality of fixing members attached to the liquid crystal display panel to fix the case,
    Wherein the fixing member has the same curvature as the liquid crystal display panel.
  2. The method according to claim 1,
    Wherein the case includes a plurality of protrusions housed in the fixing member.
  3. 3. The method of claim 2,
    Wherein the fixing member has a U-shape to accommodate the protrusion.
  4. 3. The method of claim 2,
    Wherein:
    A top surface and a bottom surface having a predetermined curvature and parallel to each other; And
    And a connection portion for connecting the upper surface portion and the lower surface portion.
  5. 5. The method of claim 4,
    The top-
    A flat portion for receiving an adhesive member for attaching the liquid crystal display panel and the fixing member; And
    And a first protrusion part and a second protrusion part protruding from both side surfaces of the plane part toward the liquid crystal display panel.
  6. 6. The method of claim 5,
    Wherein the first and second protrusions
    And a first groove portion and a second groove portion recessed from the central region toward the planar portion.
  7. 5. The method of claim 4,
    And the bottom portion includes a third groove portion recessed from the bottom surface of the bottom portion toward the top surface portion.
  8. 3. The method of claim 2,
    And a guide panel formed at a lower portion of the fixing member and supporting the optical sheet.
  9. 9. The method of claim 8,
    And a buffer member located on an inner surface of the case and formed between the guide panel and the liquid crystal display panel.
  10. 10. The method of claim 9,
    Wherein the buffer member has a groove for receiving the projection.
  11. The method according to claim 1,
    Wherein the fixing member is formed of a material having the same thermal expansion coefficient as the substrate on which the liquid crystal display panel is formed.
  12. The method according to claim 1,
    Wherein the fixing member comprises glass fibers constituting a substrate on which the liquid crystal display panel is formed.
  13. The method according to claim 1,
    Wherein a distance between the fixing members located in a central region of the liquid crystal display panel is narrower than a distance between the fixing members located in a region outside the central region.
  14. The method according to claim 1,
    Wherein the fixing member located in a central region of the liquid crystal display panel is formed to be wider than the fixing member located in an area outside the central region.
KR1020120139842A 2012-12-04 2012-12-04 Liquid Crystal Display Device KR101984270B1 (en)

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KR1020120139842A KR101984270B1 (en) 2012-12-04 2012-12-04 Liquid Crystal Display Device

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KR20140071819A true KR20140071819A (en) 2014-06-12
KR101984270B1 KR101984270B1 (en) 2019-05-30

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170005126A (en) * 2014-07-03 2017-01-11 센젠 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 Curvature-adjustable backplane and liquid crystal display device having same
KR101970334B1 (en) * 2018-04-10 2019-08-13 이피네트시스템즈 주식회사 Method for manufacturing display panel with curved shape
KR101970330B1 (en) * 2018-04-10 2019-08-13 이피네트시스템즈 주식회사 Method for manufacturing display panel with curved shape
KR101970331B1 (en) * 2018-04-10 2019-08-20 이피네트시스템즈 주식회사 Method for manufacturing display panel with curved shape

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990078070A (en) * 1998-03-30 1999-10-25 가타오카 마사타카 Liquid Crystal Display Apparatus
JP2009093000A (en) * 2007-10-10 2009-04-30 Hitachi Displays Ltd Liquid crystal display device
KR20120118372A (en) * 2011-04-18 2012-10-26 엘지디스플레이 주식회사 Display apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990078070A (en) * 1998-03-30 1999-10-25 가타오카 마사타카 Liquid Crystal Display Apparatus
JP2009093000A (en) * 2007-10-10 2009-04-30 Hitachi Displays Ltd Liquid crystal display device
KR20120118372A (en) * 2011-04-18 2012-10-26 엘지디스플레이 주식회사 Display apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170005126A (en) * 2014-07-03 2017-01-11 센젠 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 Curvature-adjustable backplane and liquid crystal display device having same
KR101970334B1 (en) * 2018-04-10 2019-08-13 이피네트시스템즈 주식회사 Method for manufacturing display panel with curved shape
KR101970330B1 (en) * 2018-04-10 2019-08-13 이피네트시스템즈 주식회사 Method for manufacturing display panel with curved shape
KR101970331B1 (en) * 2018-04-10 2019-08-20 이피네트시스템즈 주식회사 Method for manufacturing display panel with curved shape
WO2019198954A1 (en) * 2018-04-10 2019-10-17 이피네트시스템즈 주식회사 Method for manufacturing curved display panel

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