KR102230679B1 - Curved display device - Google Patents

Abstract

The curved display device of the present invention is to prevent light leakage by reducing the shrinkage stress of the polarizing plate by extending the support or fixing film to one side of the display device and enclosing the side surface. ; A polarizing plate disposed outside the curved display panel; And a mechanism for fixing the polarizing plate and the curved display panel, wherein at least one side of the support or fixing film located on the outside of the polarizing plate extends toward the mechanism to form an extension to surround the outer side of the mechanism. .

Description

Curved display device {CURVED DISPLAY DEVICE}

The present invention relates to a curved display device, and more particularly, to a curved display device capable of increasing a viewer's immersion feeling by manufacturing a display panel in a curved shape.

In the recent information society, the importance of display devices as a transmission medium for visual information is more emphasized, and in order to occupy an important position in the future, it must meet requirements such as low power consumption, thinner, lighter, and high-definition.

The display device includes a cathode ray tube (CRT) that emits light, an electroluminescence device (EL), a light emitting diode (LED), a vacuum fluorescent display (VFD), Light-emitting types such as Organic Light Emitting Device (OLED), Field Emission Display (FED), and Plasma Display Panel (PDP), and Liquid Crystal Display (LCD). ), it can be divided into a non-luminous type that does not emit light itself.

Recently, the enlargement of the screen of a liquid crystal display device used as a display device of a television receiver is accelerating.

However, according to the enlargement of the screen, there is a problem that the visual difference increases when the viewer sees the center of the screen and both the left and right ends of the screen.

In addition, a problem with the screen of a large-sized television liquid crystal display device is an increase in glare off of the screen. This visual difference problem can be improved by concavely bending the screen.

1 is a schematic perspective view of a general curved display device.

In addition, FIG. 2 is a photograph showing a general curved display device as an example.

Referring to the drawings, a general curved display device 10 includes a display panel (that is, a concave curved display panel) 1 and a curved backlight unit (not shown) in which the screen is concavely bent. , When observed from the XY plane, it is bent concave with a constant curvature.

As described above, in the case of the general curved display device 10, not only the display panel 1 but also the backlight unit forms a curved structure in order to implement a constant curvature.

For example, a curved shape is realized by fastening the display panel 1 to a rigid curved mechanism.

In this case, the shape of the display panel 1 may be changed to a curved surface through pretreatment before fastening the display panel 1 to the mechanism part.

However, there are many obstacles to maintaining the display panel 1 in a curved shape. For example, when forming a curved surface of the display panel 1 due to contraction of the upper and lower polarizing plates through pre-processing, light leakage occurs due to interference with the mechanism. In addition, when the curved display panel 1 is maintained, the bending characteristics of the display panel 1 are alleviated due to the restoring force of the polarizing plate. Due to this characteristic, there is a problem in that light leakage is greatly expressed when fastened to a rigid curved instrument part.

3 is a photograph showing, for example, a state in which light leakage has occurred in a general curved display device, and shows, for example, light leakage from a display panel of a 65-inch model.

Referring to FIG. 3, it can be seen that light leakage occurs locally at the edge of the display panel due to the relaxation of the bending characteristic of the display panel due to the restoring force of the polarizing plate.

An object of the present invention is to solve the above problems, and to provide a curved display device capable of preventing light leakage.

In addition, other objects and features of the present invention will be described in the configuration and claims of the invention to be described later.

In order to achieve the above object, a curved display device according to an embodiment of the present invention includes a curved display panel in which a screen is concavely bent; A polarizing plate disposed outside the curved display panel; And a mechanism for fixing the polarizing plate and the curved display panel, wherein at least one side of the support or fixing film located on the outside of the polarizing plate extends toward the mechanism to form an extension to surround the outer side of the mechanism. .

In this case, a backlight unit positioned on the rear surface of the curved display panel to supply backlight light to the curved display panel; And a guide panel positioned between the curved display panel and the backlight unit and having a frame shape on which the curved display panel is mounted.

At this time, the polarizing plate is a polarizing element; And a support located outside the polarizing element.

In this case, the fixing film may be attached to the upper side of the support.

At this time, it may further include an adhesive means interposed between the extended portion of the fixing film and the guide panel.

While the fixing film is attached to the upper side of the support through an adhesive, the adhesive may have the same shape as the fixing film including the extension part.

The support may include a first support attached to a lower side of the polarizing element; And a second support attached to the upper side of the polarizing element.

In this case, at least one side of the second support may be extended from the polarizing element and the first support to constitute the extended part.

In this case, a pressure-sensitive adhesive provided between the polarizing element and the side surface of the first support and the extended portion of the second support may be further included.

At least one side of the first and second supports may be expanded than the polarizing element to constitute the expansion part.

At least one side of the support may be extended than the polarizing element to constitute the extended part.

The extended portion may have a serrated shape.

The extended portion may have the same rectangular shape as the support or fixed film, or may have various other polygonal shapes.

As described above, the curved display device according to the present invention provides an effect of preventing light leakage by reducing the shrinkage stress of the polarizing plate by extending the support or the fixing film to one side of the display device and enclosing the side surface.

1 is a schematic perspective view of a general curved display device.
2 is a photograph showing a typical curved display device as an example.
3 is a photograph showing, for example, a state in which light leakage has occurred in a general curved display device.
4 is a schematic cross-sectional view showing a part of the structure of a curved display device according to the present invention.
5A and 5B are exemplary views showing characteristics of light passing through a liquid crystal display panel.
6 is an exploded perspective view schematically showing the components of the polarizing plate according to the first embodiment of the present invention.
7 is a view schematically showing a cross section along line II′ of the polarizing plate according to the first embodiment of the present invention shown in FIG. 6.
8 is an exploded perspective view schematically showing another example of a polarizing plate according to the first embodiment of the present invention.
9 is an exploded perspective view schematically showing another example of the polarizing plate according to the first embodiment of the present invention.
10 is an exploded perspective view schematically showing another example of the polarizing plate according to the first embodiment of the present invention.
11 is a photograph showing, for example, a state in which light leakage is alleviated in the curved display device according to the present invention.
12 is a cross-sectional view schematically showing components of a polarizing plate according to a second embodiment of the present invention.
13 is a cross-sectional view schematically showing components of a polarizing plate according to a third embodiment of the present invention.
14 is a cross-sectional view schematically showing components of a polarizing plate according to a fourth embodiment of the present invention.
15 is a cross-sectional view schematically showing components of a polarizing plate according to a fifth embodiment of the present invention.
16 is a cross-sectional view schematically showing components of a polarizing plate according to a sixth embodiment of the present invention.
17 is a cross-sectional view schematically showing components of a polarizing plate according to a seventh embodiment of the present invention.

Hereinafter, preferred embodiments of the curved display device according to the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments are intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity of description.

When an element or layer is another element or referred to as “on” or “on”, it includes not only directly above the other element or layer, but also a case in which another layer or other element is interposed in the middle. do. On the other hand, when a device is referred to as "directly on" or "directly on", it indicates that no other device or layer is interposed therebetween.

The terms "below, beneath", "lower", "above", and "upper", which are spatially relative terms, refer to one element or component as shown in the drawing. It can be used to easily describe the correlation between the and other devices or components. Spatially relative terms should be understood as terms including different directions of the device during use or operation in addition to the directions shown in the drawings. For example, if an element shown in the figure is turned over, an element described as “below” or “beneath” another element may be placed “above” another element. Accordingly, the exemplary term “below” may include both directions below and above.

The terms used in the present specification are for describing exemplary embodiments, and therefore, are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements in which the recited component, step, operation and/or element Or does not preclude additions.

4 is a schematic cross-sectional view illustrating a part of the structure of a curved display device according to the present invention.

In the case of a display device, when it has a curved shape rather than a flat surface, cognitive immersion and a three-dimensional effect can be improved.

The curved display device according to the present invention includes a display panel in which a screen is bent concave (that is, a concave curved display panel) and a backlight that is positioned behind the curved display panel to supply backlight light to the curved display panel. Includes units.

In this case, the curved display panel may have a curved shape having a constant curvature when the screen is observed in the XY plane.

Such a curved display panel may be of either a flexible type or a rigid type, and may have a curved shape by various manufacturing methods.

The curved display panel may be a liquid crystal display panel, a plasma display panel, an organic light emitting display panel, or the like.

For example, when the curved display panel is configured as a liquid crystal display panel, referring to FIG. 4, the curved display panel includes two substrates 105 and 110 and a liquid crystal layer 130 formed therebetween. Can be configured.

In this case, the liquid crystal display panel illustrated in FIG. 4 illustrates a case in which a twisted nematic (TN) mode is used as an example, but the present invention is not limited thereto. The present invention can be applied regardless of liquid crystal modes such as in plane switching (IPS) mode or fringe field switching (FFS) mode as well as vertical alignment (VA) mode.

A thin film transistor array is formed on the lower substrate 110 of the two substrates 105 and 110.

A plurality of data lines (not shown) to which R, G, and B data voltages are supplied to the thin film transistor array, a plurality of gate lines (not shown) to which a gate pulse is supplied across the data lines, and the data line A plurality of thin film transistors formed at intersections of the field and gate lines, a plurality of pixel electrodes 118 for charging a data voltage to the liquid crystal cells, and a plurality of pixel electrodes 118 connected to the pixel electrode 118 to maintain the voltage of the liquid crystal cell. And storage capacitors.

The thin film transistor includes a gate electrode 121 connected to the gate line, a source electrode 122 connected to the data line, and a drain electrode electrically connected to the pixel electrode 118 through a contact hole formed in the protective layer 115b. 123). In addition, the thin film transistor includes a gate insulating layer 115a for insulation between the gate electrode 121 and the source/drain electrodes 122 and 123, and the source electrode ( It includes an active layer 124 forming a conductive channel between the drain electrode 122 and the drain electrode 123.

In this case, when an amorphous silicon thin film is used as the active layer 124, the source/drain regions of the active layer 124 are formed through the ohmic-contact layer 125 to the source/drain electrodes 122 and 123 and the ohmic-contact. Will form.

However, the present invention is not limited thereto, and other semiconductor materials such as a polysilicon thin film or an oxide semiconductor may be used as the active layer 124.

A color filter array is formed on the upper substrate 105, and a color filter 107 composed of a plurality of sub-color filters implementing colors of R, G, and B is distinguished between the sub-color filter and the color filter array. And a black matrix (BM) 106 that blocks light passing through the liquid crystal layer 130, and a transparent common electrode 108 that applies a voltage to the liquid crystal layer 130.

When the curved display panel is configured as a liquid crystal display panel, the size of the upper substrate 105 may be designed to be smaller than the size of the lower substrate 110. Accordingly, an area not covered by the upper substrate 105 is exposed. In the exposed area, a pad portion in which the gate driver and the data driver are located may be formed.

The upper substrate 105 and the lower substrate 110 configured as described above are bonded to each other by a sealant 140 formed outside the image display area to form a liquid crystal display panel. Bonding of the lower substrate 110 is performed through a bonding key (not shown) formed on the upper substrate 105 or the lower substrate 110.

Such a liquid crystal display panel is provided with a backlight unit on its rear surface to supply light, because the liquid crystal display device itself is a device that does not have a light emitting element and thus requires a separate light source.

Although the present invention is not limited to a direct-down method or an edge method according to a method of arranging a light source, as an example, when a direct-type backlight unit is specifically described, a lamp composed of a plurality of lamps (not shown) at the rear of the curved display panel. An assembly (not shown) may be installed, and a reflector (not shown) may be installed on the rear surface of the lamp assembly.

In addition, a plurality of optical sheets (not shown) may be disposed between the lamp assembly and the curved display panel to reduce light loss and improve uniformity.

At this time, the lamp is a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp (EEFL), a hot cathode fluorescent lamp (HCFL), and a light emitting diode (Light Cathode Fluorescent Lamp) as light sources. Various light sources such as Emitting Diode (LED) can be used.

In addition, the optical sheet includes a diffusion sheet and a prism sheet, and a protective sheet may be added.

The diffusion sheet disperses the light incident from the lamp, thereby preventing the occurrence of spots in the image displayed on the curved display panel due to the partial concentration of the light.

In addition, the prism sheet collects light incident from the diffusion sheet so that it is uniformly distributed over the entire surface of the curved display panel.

Moreover, the protective sheet protects the optical sheet sensitive to dust or scratches, prevents the flow of the optical sheet when carrying the backlight unit, and has a function of diffusing the light incident from the prism sheet to make the light more uniform. Can be distributed.

As described above, a curved display panel including the upper substrate 105 and the lower substrate 110 is mounted through the frame-shaped guide panel 145 on the upper portion of the backlight unit configured as described above. The guide panel 145 and the backlight unit are coupled to each other by a cover bottom (not shown) at the bottom through a plurality of fastening means to form a curved display device.

In this case, when the curved display panel is configured as a liquid crystal display panel, the liquid crystal display panel includes a first polarizing plate 150a disposed below the lower substrate 110 and a first polarizing plate 150a disposed above the upper substrate 105. A second polarizing plate 150b may be further included.

The first polarizing plate 150a includes a transmission axis in a first direction, and polarizes light in a first direction. The second polarizing plate 150b includes a transmission axis in a second direction, and polarizes light in a second direction. For example, a transmission axis of the first polarizing plate 150a and a transmission axis of the second polarizing plate 150b may be disposed perpendicular to each other.

The first and second polarizing plates 150a and 150b transmit light of a polarization component coincident with the transmission axis, and transmit light through the arrangement of the transmission axes of the first and second polarizing plates 150a and 150b and the alignment characteristics of the liquid crystal. You will determine the degree.

5A and 5B are exemplary views showing characteristics of light passing through a liquid crystal display panel.

Referring to the drawings, a general liquid crystal display device includes a liquid crystal display panel 100 and a backlight unit (not shown) that supplies light from the rear surface thereof, and the liquid crystal display panel 100 interposes the liquid crystal layer 130. And first and second substrates 110 and 105 bonded to each other, and first and second polarizing plates 150a and 150b attached to outer surfaces of the first and second substrates 110 and 105, respectively.

At this time, although not shown, a plurality of pixels having transparent pixel electrodes formed on the inner surface of the first substrate 110 and a thin film transistor for controlling on/off of a liquid crystal driving voltage transmitted to each of the pixel electrodes are provided. , A color filter and a common electrode for color realization are provided on the inner surface of the second substrate 105.

In addition, the liquid crystal layer 130 interposed between the first and second substrates 110 and 105 is a TN mode, and when the voltage is off, the major axis direction of the molecule is the first and second substrates 110 and 105 ) And the alignment state twisted in an azimuth angle of 90 degrees from the first substrate 110 to the second substrate 105 while maintaining parallel to each other, and the polarization axes of the first and second polarizing plates 150a and 150b are orthogonal to each other. .

As described above, since the liquid crystal display panel 100 does not emit light by itself, a backlight unit that supplies light to the liquid crystal display panel 100 is located on the rear surface of the liquid crystal display panel 100.

When the voltage is off in the liquid crystal display panel 100, the light emitted from the backlight unit is transmitted by the first polarizing plate 150a by the first polarizing plate 150a, and only linearly polarized light parallel to its polarization axis is transmitted. The rest is absorbed, and the liquid crystal layer 130 is rotated by 90 degrees along the azimuth angle thereof while passing through the liquid crystal layer 130 to transmit white through the second polarizing plate 150b.

Next, when the voltage is on, the liquid crystal molecules of the liquid crystal display panel 100 are 90 with their long axes vertically arranged with respect to the first and second polarizing plates 150a and 150b, as shown in FIG. 5B. The optical rotatory power of the diagram is lost, and the linearly polarized light transmitted through the first polarizing plate 150a is blocked by the second polarizing plate 150b to display black.

Meanwhile, referring to FIG. 4, a polarizing plate for a curved display device according to the present invention, for example, a second polarizing plate 150b extends the support or fixed film 156 to one side of the display device (expansion part 157 ) To surround the side surface of the mechanical part, for example, the guide panel 145, so that the shrinkage stress of the polarizing plates 150a and 150b can be relieved, which will be described in detail with reference to the drawings.

6 is an exploded perspective view schematically showing the components of the polarizing plate according to the first embodiment of the present invention, and FIG. 7 is a line I-I' of the polarizing plate according to the first embodiment of the present invention shown in FIG. It is a diagram schematically showing a cross section along the line.

At this time, for convenience, FIG. 6 schematically shows the components of the polarizing plate in which the adhesive and the adhesive are omitted.

8 is an exploded perspective view schematically showing another example of a polarizing plate according to the first embodiment of the present invention.

9 and 10 are exploded perspective views schematically showing another example of a polarizing plate according to the first embodiment of the present invention.

As described above, the polarizing plate transmits only light that vibrates in the same direction as the polarization axis among the light provided from the backlight unit, and the light that vibrates in the other direction is absorbed or reflected using an appropriate medium to absorb or reflect light that vibrates in a specific direction. It plays a role in making.

Referring to the drawings, the polarizing plate according to the first embodiment of the present invention includes a first support 153a and a second support 153b, and a polarizing element located between the first support 153a and the second support 153b. Includes 151.

The first support 153a and the second support 153b may be formed of a general protection film without retardation, for example, a tri-acetyl cellulose (TAC) film. Can be done.

The first support 153a is attached to the lower side of the polarizing element 151 through a first adhesive 152a, while the second support 153b is provided with the polarizing element 151 through a second adhesive 152b. ) Is attached to the upper side.

At this time, the first and second adhesives 152a and 152b refer to a material that is attached through a chemical bond with an adherend, and thus, once attached, they do not fall off unless material destruction occurs.

As the first and second adhesives 152a and 152b, an acrylic or epoxy-based component is used as a main component, and a chemical reaction occurs due to heat or UV.

The polarizing element 151 refers to a film that can be converted from natural light or polarized light into arbitrary polarized light. When the incident light is divided into two orthogonal polarization components, the polarizing element 151 has a function of passing one of the polarization components and absorbing, reflecting, and scattering the other polarization component. Those having at least one or more functions selected from may be used.

The polarizing elements 151 and the first and second supports 153a and 153b adhered to each other in this way may further attach a first release film 155a and a second release film 155b to the outside to protect them. .

At this time, the second release film (155b) is attached to the outside of the second support (153b) to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, and the first release film (155a) is the Until the polarizing plate is attached to the final product, it may be attached to the outside of the first support 153a.

The first release film 155a and the first support 153a are adhered to each other by a first adhesive 154a, and the first release film 155a is attached to the final product on the surface from which the first release film 155a is removed. In addition, a second adhesive 154b is formed on the second support 153b to which the second release film 155b is attached.

At this time, the first and second pressure-sensitive adhesives 154a and 154b serve to attach the polarizing plate to the liquid crystal display panel, do not have a chemical reaction (combination) with the adherend, but have a role to be physically attached. do.

Therefore, it can be removed and re-attached at any time, and acrylic or silicone-based components can be used.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 155a is removed is attached.

At this time, in the case of the first embodiment of the present invention, the upper and lower extensions ( 157a, 157a', 157b, 157b') or a fixed film 156 having extended portions 157 and 157' is attached thereto.

In this case, referring to FIGS. 6 and 9, the upper and lower extension parts 157a, 157a', 157b, and 157b' according to the first embodiment of the present invention may be formed to extend upward and downward of the mechanical part, respectively. However, the present invention is not limited thereto.

8 and 10, the expansion parts 157 and 157 ′ according to the first embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanical part.

In addition, referring to FIGS. 6 and 8, the upper and lower extension parts 157a and 157b and the extension part 157 may be formed in a sawtooth shape. For example, in this case, an empty space in which the serrated upper extension part 157a is not formed may be a region in which the source driving integrated circuit is located.

However, the present invention is not limited thereto, and referring to FIGS. 9 and 10, the upper and lower extension parts 157a' and 157b' and the extension part 157' are the same as those of the fixed film 156. It can be formed in a rectangular shape or in various other polygonal shapes.

The fixing film 156 may be attached on the second adhesive 154b after removing the second release film 155b of the upper polarizing plate. However, the present invention is not limited thereto, and a second adhesive is provided under the fixing film 156 and may be attached to the second support 153b of the upper polarizing plate through this.

At this time, although not shown, a predetermined protective film may be attached to the outside of the fixing film 156 to prevent scratches on the surface of the polarizing plate and the fixing film 156 until the polarizing plate is attached to the final product.

A reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the fixing film 156 from which the protective film is removed after the polarizing plate configured as described above is attached to the final product.

Here, the reinforced substrate may be made of, for example, tempered glass having a thickness of about 3 mm to protect the internal liquid crystal display panel from external impact. This tempered glass is a glass that is strengthened by heating the molded plate glass to 500 ~ 600°C close to the softening temperature, and rapidly cooling the glass surface by compressed cooling air to compress and deform the inside of the glass. Compared to ordinary glass, the bending strength is 3 to 5 times, the impact resistance is 3 to 8 times, and the heat resistance is also excellent.

Although not shown, adhesive means such as double-sided tape may be interposed between the upper and lower extension portions 157a' and 157b' and the extension portion 157' of the fixing film 156 and the mechanism portion.

As described above, the upper and lower extensions 157a, 157a', 157b, and 157b' or the extensions 157 and 157' of the fixed film 156 according to the first embodiment of the present invention are upper, lower, or By forming a curved display device having a smooth curved surface surrounding the lower side, interference with the mechanism is minimized, while reducing the shrinkage stress of the polarizing plate, it serves to maintain the curved surface of the liquid crystal display panel.

Accordingly, it is possible to suppress a phenomenon in which light leakage occurs locally at the edge of the liquid crystal display panel, thereby improving image quality.

FIG. 11 is a photograph showing, for example, a state in which light leakage is alleviated in the curved display device according to the present invention, and shows, for example, light leakage from a display panel of a 65-inch model.

Referring to FIG. 11, by extending the support or fixing film to one side of the display device and attaching it so as to surround the side of the device, it is possible to maintain the curved state of the display panel.

Accordingly, it can be seen that the stress at the edge of the display panel is alleviated and light leakage is alleviated.

Meanwhile, the present invention is not limited to the configuration of the polarizing plate and the fixing film described above. The present invention can be applied by variously modifying the configuration of the polarizing plate and the fixing film as long as a fixing film is attached so as to extend to one side of the curved display device on the upper side of the upper polarizing plate and cover the side of the mechanism unit. It will be described in detail through the second to fourth embodiments of the.

12 is a schematic cross-sectional view showing components of a polarizing plate according to a second embodiment of the present invention.

In this case, the polarizing plate according to the second embodiment of the present invention shown in FIG. 12 has substantially the same configuration as the first embodiment of the present invention, except that the second adhesive is provided under the fixing film. have. Accordingly, the description of the same components refers to the description of the first embodiment of the present invention described above.

Referring to FIG. 12, the polarizing plate according to the second embodiment of the present invention includes a polarized light positioned between a first support 253a and a second support 253b, and the first support 253a and the second support 253b. It includes an element 251.

Like the first embodiment of the present invention described above, the first support 253a and the second support 253b may be formed of a general protective film without phase delay, and may be formed of, for example, a TAC film.

The first support 253a is attached to the lower side of the polarizing element 251 through a first adhesive 252a, while the second support 253b is provided with the polarizing element 251 through a second adhesive 252b. ) Is attached to the upper side.

The polarizing elements 251 and the first and second supports 253a and 253b adhered to each other in this way may further attach a first release film 255a and a second release film 255b to the outside to protect them. .

At this time, the second release film (255b) is attached to the outside of the second support (253b) to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, and the first release film (255a) is the Until the polarizing plate is attached to the final product, it may be attached to the outside of the first support 253a.

The first release film 255a and the first support 253a are adhered to each other by a first adhesive 254a, and the first release film 255a is attached to the final product on the surface from which the first release film 255a is removed. On the other hand, it is not necessary to form a second adhesive on the second support 253b to which the second release film 255b is attached.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 255a is removed is attached.

At this time, in the case of the second embodiment of the present invention, the upper and lower extensions ( It is characterized in that a fixed film (256) having 257a, 257b) is attached.

In this case, the upper and lower extension parts 257a and 257b according to the second embodiment of the present invention may be formed to extend upward and downward of the mechanical part, as in the first embodiment of the present invention. The invention is not limited thereto.

Although not shown, as another example, the extension part according to the second embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanism part.

In addition, the upper and lower extension parts 257a and 257b and the extension part may be formed in a sawtooth shape.

However, the present invention is not limited thereto, and the upper and lower extension portions 257a and 257b and the extension portions may be formed in the same rectangular shape as the fixed film 256 or in various other polygonal shapes.

The fixed film 256 has a third release film 255c attached thereto through a second adhesive 254b.

In this case, the fixing film 256 may be attached to the second support 253b of the upper polarizing plate through the second adhesive 254b after removing the second release film 255b of the upper polarizing plate.

The second pressure-sensitive adhesive 254b and the third release film 255c may have the same shape as the fixing film 256 including upper and lower extension portions 257a and 257b and extension portions thereof. However, the present invention is not limited thereto.

At this time, although not shown, a predetermined protective film may be attached to the outside of the fixing film 256 to prevent scratches on the surface of the polarizing plate and the fixing film 256 until the polarizing plate is attached to the final product.

A reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the fixing film 256 from which the protective film is removed after the polarizing plate configured as described above is attached to the final product.

Like the first embodiment of the present invention, the upper and lower extensions 257a and 257b or the extensions of the fixing film 256 according to the second embodiment of the present invention cover the upper, lower, or lower sides of the mechanism. By forming a curved display device having a smooth curved surface, interference with the mechanism is minimized, and the contraction stress of the polarizing plate is relieved to maintain the curved surface of the liquid crystal display panel.

Accordingly, it is possible to suppress a phenomenon in which light leakage occurs locally at the edge of the liquid crystal display panel, thereby improving image quality.

And, Figure 13 is a cross-sectional view schematically showing the components of the polarizing plate according to the third embodiment of the present invention.

In this case, the polarizing plate according to the third embodiment of the present invention shown in FIG. 13 has substantially the same configuration as the first embodiment of the present invention, except that the first support is excluded. Accordingly, the description of the same components refers to the description of the first embodiment of the present invention described above.

Referring to FIG. 13, a polarizing plate according to a third embodiment of the present invention includes a polarizing element 351 and a support 353 positioned thereon.

Like the first embodiment of the present invention described above, the support 353 may be formed of a general protective film without phase delay, and may be formed of, for example, a TAC film.

The support 353 is attached to the upper side of the polarizing element 351 through an adhesive 352.

The polarizing element 351 and the support 353 bonded to each other in this way may further attach a first release film 355a and a second release film 355b to the outside to protect them.

At this time, the second release film (355b) is attached to the outside of the support (353) to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, the first release film (355a) is the polarizing plate is the final It may be attached to the outside of the polarizing element 351 until attached to the product.

The first release film 355a and the polarizing element 351 are bonded to each other by a first adhesive 354a, and the first release film 355a is attached to the final product on a surface from which the first release film 355a is removed. In addition, a second adhesive 354b is formed on the support 353 to which the second release film 355b is attached.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 355a is removed is attached.

In this case, in the case of the third embodiment of the present invention, the upper and lower extensions ( 357a, 357b) or a fixed film 356 having an extension portion is attached thereto.

In this case, the upper and lower extension parts 357a and 357b according to the third embodiment of the present invention may be formed to extend upward and downward of the mechanical part, as in the first embodiment of the present invention described above. The invention is not limited thereto.

Although not shown, as another example, the extension part according to the third embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanism part.

In addition, the upper and lower extension parts 357a and 357b and the extension part may be formed in a sawtooth shape.

However, the present invention is not limited thereto, and the upper and lower extension portions 357a and 357b and the extension portions may be formed in the same rectangular shape as the fixed film 356 or in various other polygonal shapes.

The fixing film 356 may be attached on the second pressure-sensitive adhesive 354b after removing the second release film 355b of the upper polarizing plate. However, the present invention is not limited thereto, and a second adhesive is provided under the fixing film 356 and may be attached to the support 353 of the upper polarizing plate through this.

At this time, although not shown, a predetermined protective film may be attached to the outside of the fixing film 356 to prevent scratches on the surface of the polarizing plate and the fixing film 356 until the polarizing plate is attached to the final product.

A reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the fixing film 356 from which the protective film is removed after the polarizing plate configured as described above is attached to the final product.

Although not shown, adhesive means such as double-sided tape may be interposed between the upper and lower extension portions 357a and 357b of the fixing film 356 and between the extension portion and the mechanism portion.

14 is a cross-sectional view schematically showing components of a polarizing plate according to a fourth embodiment of the present invention.

In this case, the polarizing plate according to the fourth embodiment of the present invention shown in FIG. 14 is the first embodiment of the present invention described above except that the second adhesive is provided under the fixed film and the first support is removed. It consists of substantially the same configuration as. Accordingly, the description of the same components refers to the description of the first embodiment of the present invention described above.

Referring to FIG. 14, a polarizing plate according to a fourth embodiment of the present invention includes a polarizing element 451 and a support 453 positioned thereon.

Like the first embodiment of the present invention described above, the support 453 may be formed of a general protective film without phase delay, and may be formed of, for example, a TAC film.

The support 453 is attached to the upper side of the polarizing element 451 through an adhesive 452.

The polarizing elements 451 and the support 453 adhered to each other in this way may further attach a first release film 455a and a second release film 455b to the outside to protect them.

At this time, the second release film 455b is attached to the outside of the support 453 to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, and the first release film 455a is the polarizing plate. It may be attached to the outside of the polarizing element 451 until attached to the final product.

The first release film 455a and the polarizing element 451 are adhered to each other by a first adhesive 454a, and the first release film 455a is attached to the final product on the surface from which the first release film 455a is removed. On the other hand, it is not necessary to form a second adhesive on the support 453 to which the second release film 455b is attached.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 455a is removed is attached.

In this case, in the case of the fourth embodiment of the present invention, the upper and lower extensions ( It is characterized in that a fixed film 456 provided with 457a and 457b) is attached.

In this case, the upper and lower extension parts 457a and 457b according to the first embodiment of the present invention may be formed to extend upward and downward of the mechanical part, as in the first embodiment of the present invention described above. The invention is not limited thereto.

Although not shown, as another example, the extension part according to the second embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanism part.

In addition, the upper and lower extension portions 457a and 457b and the extension portions may be formed in a sawtooth shape.

However, the present invention is not limited thereto, and the upper and lower extension portions 457a and 457b and the extension portions may be formed in the same rectangular shape as the fixed film 456 or in various other polygonal shapes.

The fixing film 456 has a third release film 455c attached thereto through a second adhesive 454b.

In this case, the fixing film 456 may be attached on the support 453 of the upper polarizing plate through the second adhesive 454b after removing the second release film 455b of the upper polarizing plate.

The second pressure-sensitive adhesive 454b and the third release film 455c may have the same shape as the fixing film 456 including upper and lower extension portions 457a and 457b and extension portions. However, the present invention is not limited thereto.

At this time, although not shown, a predetermined protective film may be attached to the outside of the fixing film 456 to prevent scratches on the surface of the polarizing plate and the fixing film 456 until the polarizing plate is attached to the final product.

A reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the fixing film 456 from which the protective film is removed after the polarizing plate configured as described above is attached to the final product.

On the other hand, in the present invention, instead of attaching a fixing film on the upper side of the polarizing plate to prevent light leakage by reducing the shrinkage stress of the polarizing plate, the upper support may be extended to one side of the curved display device to surround the side of the mechanism. , This will be described in detail through the following fifth to seventh embodiments of the present invention.

15 is a schematic cross-sectional view showing components of a polarizing plate according to a fifth embodiment of the present invention.

Referring to FIG. 15, the polarizing plate according to the fifth embodiment of the present invention is polarized light located between the first support 553a and the second support 553b, and the first support 553a and the second support 553b. Element 551.

The first support 553a and the second support 553b may be formed of a general protective film without a phase delay, and may be formed of, for example, a TAC film.

The first support 553a is attached to the lower side of the polarizing element 551 through a first adhesive 552a, while the second support 553b is provided with the polarizing element 551 through a second adhesive 552b. ) Is attached to the upper side.

At this time, the upper and lower sides of the second support 553b are more extended than the polarizing element 551 and the first and second adhesives 552a and 552b and the first support 553a. The side of the mechanism part is wrapped through the lower extension parts 557a and 557b.

The polarizing elements 551 and the first and second supports 553a and 553b adhered to each other in this way may further attach a first release film 555a and a second release film 555b to the outside to protect them. .

At this time, the second release film 555b is attached to the outside of the second support 553b to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, and the first release film 555a is Until the polarizing plate is attached to the final product, it may be attached to the outside of the first support 553a.

The first release film 555a and the first support 553a are bonded to each other by a first adhesive 554a, and the first release film 555a is attached to the final product on the surface from which the first release film 555a is removed. On the other hand, an adhesive may not be formed between the second release film 555b and the second support 553b.

The first release film 555a, the first adhesive 554a, and the second release film 555b may be formed to have the same shape as the second support 553b.

At this time, between the polarizing element 551 and the first and second adhesives 552a and 552b and the side surfaces of the first support 553a and the upper and lower extensions 557a and 557b of the second support 553b A second pressure-sensitive adhesive 554b may be additionally provided.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 555a is removed is attached.

At this time, as described above, in the case of the fifth embodiment of the present invention, at least one side of the second support 553b of the upper polarizing plate is extended to one side of the curved display device so as to surround the side of the mechanical part, for example, the guide panel. It is characterized in that the lower extensions (557a, 557b) are formed.

In this case, the upper and lower extension parts 557a and 557b according to the fifth embodiment of the present invention may be formed to extend upward and downward of the mechanical part, respectively, but the present invention is not limited thereto.

Although not shown, as another example, the extension part according to the fifth embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanism part.

In addition, the upper and lower extension portions 557a and 557b and the extension portions may be formed in a sawtooth shape. For example, in this case, the upper and lower extension portions 557a and 557b in the shape of teeth, and the empty space in which the extension portion is not formed may be an area in which the source driving integrated circuit is located.

However, the present invention is not limited thereto, and the upper and lower extension parts 557a and 557b and the extension part may be formed in the same rectangular shape as the second support 553b or in various other polygonal shapes.

In this case, a reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the second release film 555b.

As described above, the second support 553b according to the fifth embodiment of the present invention extends at least one side to one side of the curved display device to surround the upper, lower, or lower side of the mechanism unit to provide a curved display device having a smooth curved surface. By forming, while minimizing the interference with the mechanism, the shrinkage stress of the polarizing plate can be relaxed to maintain the curved surface of the liquid crystal display panel.

Accordingly, it is possible to suppress a phenomenon in which light leakage occurs locally at the edge of the liquid crystal display panel, thereby improving image quality.

16 is a cross-sectional view schematically showing components of a polarizing plate according to a sixth embodiment of the present invention.

In this case, the polarizing plate according to the sixth embodiment of the present invention shown in FIG. 16 has substantially the same configuration as the fifth embodiment of the present invention, except that the first support as well as the second support has an extension part. Consists of. Accordingly, the description of the same components refers to the description of the fifth embodiment of the present invention described above.

Referring to FIG. 16, the polarizing plate according to the sixth embodiment of the present invention is polarized light located between the first support 653a and the second support 653b, and the first support 653a and the second support 653b. It includes an element 651.

Similar to the fifth embodiment of the present invention, the first support 653a and the second support 653b may be formed of a general protective film without phase delay, and may be formed of, for example, a TAC film.

The first support 653a is attached to the lower side of the polarizing element 651 through an adhesive 652, while the second support 653b is attached to the upper side of the polarizing element 651 through the adhesive 652 Will be attached to.

At this time, the first support (653a) and the second support (653b) has an upper and lower side extending than the polarizing element 651 therebetween. It wraps around the side.

The polarizing elements 651 and the first and second supports 653a and 653b adhered to each other in this way may further attach a first release film 655a and a second release film 655b to the outside to protect them. .

At this time, the second release film (655b) is attached to the outside of the second support (653b) to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, and the first release film (655a) is the Until the polarizing plate is attached to the final product, it may be attached to the outside of the first support 653a.

The first release film 655a and the first support 653a are bonded to each other by an adhesive 654, and the first release film 655a is attached to the final product on the surface from which the first release film 655a is removed. On the other hand, an adhesive may not be formed between the second release film 655b and the second support 653b.

The first release film 655a, the adhesive 654, and the second release film 655b may be formed to have the same shape as the first and second supports 653a and 653b.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 655a is removed is attached.

At this time, as described above, in the case of the sixth embodiment of the present invention, at least one side of the first and second supports 653a and 653b of the upper polarizing plate is extended to one side of the curved display device, and the mechanism part, for example, the side surface of the guide panel. It is characterized in that the upper and lower extension portions 657a and 657b are formed to surround the.

In this case, the upper and lower extension parts 657a and 657b according to the sixth embodiment of the present invention may be formed to extend upward and downward of the mechanical part, as in the fifth embodiment of the present invention described above. The invention is not limited thereto.

Although not shown, as another example, the extension part according to the sixth embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanism part.

In addition, the upper and lower extension portions 657a and 657b and the extension portions may be formed in a sawtooth shape.

However, the present invention is not limited thereto, and the upper and lower extension portions 657a and 657b and the extension portions may be formed in the same rectangular shape as the first and second supports 653a and 653b, or in various other polygonal shapes. I can.

In this case, a reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the second release film 655b.

And, Figure 17 is a cross-sectional view schematically showing the components of the polarizing plate according to the seventh embodiment of the present invention.

In this case, the polarizing plate according to the seventh embodiment of the present invention shown in FIG. 17 has substantially the same configuration as the fifth embodiment of the present invention, except that the first support is excluded. Accordingly, the description of the same components refers to the description of the fifth embodiment of the present invention described above.

Referring to FIG. 17, a polarizing plate according to a seventh embodiment of the present invention includes a polarizing element 751 and a support 753 positioned thereon.

Like the fifth embodiment of the present invention described above, the support 753 may be formed of a general protective film without phase delay, and may be formed of, for example, a TAC film.

At this time, the support 753 has an upper and lower side extending than the polarizing element 751, and the upper and lower extension portions 757a and 757b surround the side surfaces of the mechanism unit.

The polarizing element 751 and the support 753 bonded to each other in this way may further attach a first release film 755a and a second release film 755b to the outside to protect them.

At this time, the second release film (755b) is attached to the outside of the support (753) to prevent scratches on the surface of the polarizing plate until the polarizing plate is attached to the final product, the first release film (755a) is the polarizing plate is the final It may be attached to the outside of the polarizing element 751 until attached to the product.

The first release film 755a and the polarizing element 751 are bonded between the adhesive 752 and the pressure-sensitive adhesive 754, and are attached to the final product on the surface from which the first release film 755a is removed. On the other hand, an adhesive may not be formed between the second release film 755b and the support 753.

The first release film 755a, the adhesive 754, and the second release film 755b may be formed to have the same shape as the support 753.

The polarizing plate of this configuration is attached to the upper and lower surfaces of the liquid crystal display panel, respectively, so that the surface from which the first release film 755a is removed is attached.

In this case, as described above, in the case of the seventh embodiment of the present invention, at least one side of the support 753 of the upper polarizing plate is extended to one side of the curved display device, and the upper and lower portions are extended to surround the side of the mechanical part, for example, the guide panel. It is characterized in that it forms parts (757a, 757b).

In this case, the upper and lower extension parts 757a and 757b according to the seventh embodiment of the present invention may be formed to extend upward and downward of the mechanical part, similar to the fifth embodiment of the present invention, but the present invention The invention is not limited thereto.

Although not shown, as another example, the extension part according to the seventh embodiment of the present invention may be formed to extend only to one of the upper and lower sides of the mechanism part.

In addition, the upper and lower extension portions 757a and 757b and the extension portions may be formed in a sawtooth shape.

However, the present invention is not limited thereto, and the upper and lower extensions 757a and 757b and the extensions may be formed in the same rectangular shape as the support 753 or in various other polygonal shapes.

In this case, a reinforced substrate for protecting the liquid crystal display panel from external impact may be further provided on the second release film 755b.

Although many items are specifically described in the above description, this should be interpreted as an illustration of a preferred embodiment rather than limiting the scope of the invention. Therefore, the invention should not be determined by the described embodiments, but should be determined by the claims and equivalents to the claims.

151,251,351,451,651,751: Polarizing device
153a,153b,253a,253b,353,453,553a,553b,653a,653b,753: Support
155a,255a,255c,355a,455a,455c,555a,655a,755a: first and third release films
155b,255b,355b,455b,555b,655b,755b: 2nd release film
156,256,356,456: Fixed film
157a,257a,357a,457a,557a,657a,757a: upper extension
157b,257b,357b,457b,557b,657b,757b: lower extension

Claims (13)

A curved display panel in which the screen is concavely curved;
A polarizing plate disposed outside the curved display panel; And
And a mechanism for fixing the polarizing plate and the curved display panel,
The polarizing plate is
A polarizing element passing a predetermined polarization component;
A support attached to the polarizing element; And
Including a fixing film disposed on the support,
The fixing film includes an extension portion extending from at least one side of the polarizing element and surrounding at least a portion of an outer side surface of the mechanism portion,
The extension part is disposed in a sawtooth shape along at least one edge of the polarizing element bent together with the curved display panel,
The adhesive between the polarizing element and the support is a curved display device made of an acrylic component or an epoxy component. The display device of claim 1, further comprising: a backlight unit positioned on a rear surface of the curved display panel to supply backlight light to the curved display panel; And
A curved display device that is positioned between the curved display panel and the backlight unit, and further comprising a guide panel in the shape of a frame on which the curved display panel is seated. delete delete The curved display device of claim 2, wherein the polarizing plate further comprises an adhesive means interposed between the extended portion of the fixed film and the guide panel. delete The method of claim 1, wherein the support is
A first support attached to the lower side of the polarizing element; And
Including a second support attached to the upper side of the polarizing element,
The fixed film is a curved display device attached to the second support. delete delete delete delete delete delete

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