KR20150051380A - Method for manufacturing display panel with curved shape and display panel with curved shape - Google Patents

Abstract

The present invention relates to a method for manufacturing a curved display panel using a flat panel display panel and a curved display panel.
A method of manufacturing a curved display panel according to an embodiment of the present invention includes the steps of: inserting the flat display panel so that at least a portion of the flat display panel is curved so as to be fixed to the front frame; The frame including a corner in which a curved region is formed; And covering the rear frame on the opposite side of the front frame with respect to the flat display panel, wherein the rear frame includes corners formed with curved regions so as to be covered on the rear side of the front frame.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curved display panel manufacturing method and a curved display panel,

The present invention relates to a method of manufacturing a curved display panel and a curved display panel, and more particularly, to a method of manufacturing a curved display panel using a flat display panel and a curved display panel.

As display technology has developed, various kinds of display devices have been developed and used. Among them, there is a liquid crystal display device which implements an image by using a liquid crystal.

A liquid crystal panel of a general liquid crystal display (LCD) includes two substrates and a liquid crystal layer having a dielectric anisotropy therebetween. A desired image is obtained by applying an electric field to the liquid crystal layer and adjusting the intensity of the electric field to adjust the transmittance of light passing through the liquid crystal layer. Such a liquid crystal display device is a representative example of a flat panel display (FPD) that is easy to carry, and a TFT-LCD using a thin film transistor (TFT) as a switching element is mainly used.

A plurality of display signal lines, that is, gate lines and data lines, a plurality of thin film transistors and pixel electrodes, and the like are formed on the lower substrate of the two substrates of the liquid crystal panel arranged to face each other. A color filter And a common electrode are formed.

Since such a liquid crystal panel is usually manufactured in a flat shape, there is a problem that a conventional flat liquid crystal panel can not be used when a curved display is required.

Korean Patent Laid-Open Publication No. 10-2012-0013265 discloses a method of manufacturing a curved display panel having a curved surface shape by thinning the thickness of an outer portion of a first substrate and a second substrate of a conventional flat panel display panel .

Korean Patent Publication No. 10-2012-0013265, however, requires a panel etching process. The panel etching process is expensive and has a high defect rate. In addition, the etched panel is subject to breakage during handling.

Therefore, it is necessary to study a fabrication method of a curved display panel which is easy to manufacture and low in manufacturing cost.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a curved display panel manufacturing method and a curved display panel which can easily manufacture a curved display panel using a flat display panel without etching the panel.

According to an aspect of the present invention, there is provided a method of manufacturing a curved display panel, the method comprising: inserting the flat display panel so that at least a part of the area of the flat display panel is curved; The front frame including a corner formed with a curved region; And covering the rear frame on the opposite side of the front frame with respect to the flat display panel, wherein the rear frame includes corners formed with curved regions so as to be covered on the rear side of the front frame. / RTI >

According to an aspect of the present invention, there is provided a display device including: a front frame including corners formed with curved regions; A flat panel display panel in which at least some regions are fitted to the front frame while maintaining a curved shape; And a rear frame which is located on the opposite side of the front frame with respect to the flat display panel and covers the front frame, the rear frame including corners formed with curved regions so as to be covered on the rear face of the front frame. A display panel is provided.

The curved display panel manufacturing method and the curved display panel according to an embodiment of the present invention can manufacture a curved display panel using a flat display panel simply and inexpensively without etching the flat display panel.

1 is an exploded perspective view of a curved display panel according to an embodiment of the present invention.
2 is an assembled perspective view of a curved display panel according to an embodiment of the present invention.
3 is a front view of the curved display panel of Fig.
FIG. 4 is a view for explaining the degree of curvature of the curved display panel of FIG. 2. FIG.
5 is a view for explaining screen unevenness of an existing curved display panel.

Hereinafter, a method of manufacturing a curved display panel according to an embodiment of the present invention will be described with reference to the accompanying drawings.

A method of manufacturing a curved display panel according to an embodiment of the present invention may include a method of manufacturing a curved display panel having a curved surface shape using a flat panel display panel.

The flat panel display panel may include an LCD panel, an organic electroluminescent panel, and the like. In the case of an LCD panel, a liquid crystal layer exists between the substrates, and in the case of an organic electroluminescent panel, an organic light emitting layer may exist between the substrates.

Hereinafter, a method of manufacturing a curved display panel using an LCD panel as a flat display panel will be described in the embodiment of the present invention. However, the flat panel display panel related to the embodiment of the present invention is not limited to the LCD panel.

1 is an exploded perspective view of a curved display panel according to an embodiment of the present invention.

The curved display panel 200 includes a front frame 110, a first protective sheet 120, an LCD panel 130, a prism sheet 140, a diffusion sheet 150, a second protective sheet 160 A back cover 170, a first cover 180, an LED driving circuit 190, a power module 200, a second cover 210, and a third cover 220. [

The front frame 110 includes at least a portion of a curved edge. For example, the front frame 110 may include a curved area and a straight area having corners having a predetermined curvature at upper and lower edges. The central portion at the corners forming the upper and lower rims may be formed as a curved region, and the curved region and the adjacent side edge portions may be linear regions.

In addition, the front frame 110 may have a central portion thereof opened except for a rim, or the central portion thereof may be made of a transparent material so that an effective display region of the LCD panel 130 may be seen from the outside. In the present embodiment, a central portion of the front frame 110 except the frame is opened. The effective display area is an area where the screen is substantially displayed on the LCD panel 130.

The first protective sheet 120 may be disposed on the LCD panel 130 to protect the LCD panel 130. The first protective sheet 120 may be made of acrylic, which is transparent.

A prism sheet 140 may be disposed on the rear surface of the LCD panel 130 to improve LCD brightness. Although one prism sheet 140 is provided in the illustrated embodiment, a plurality of prism sheets may be provided if necessary.

A diffusion sheet 150 may be disposed on the rear surface of the prism sheet 140 to diffuse the emitted light and a second protective sheet 160 may be disposed on the rear surface of the diffusion sheet 150.

The first protective sheet 120, the LCD panel 130, the prism sheet 140, the diffusion sheet 150, and the second protective sheet 160 may have a curved shape in a part of the region (central portion) And can be fitted to be fixed to the frame 110. The first protective sheet 120, the LCD panel 130, the prism sheet 140, the diffusion sheet 150, and the second protective sheet 160 may be sequentially inserted into the front frame 110.

Since the center portion of the edge forming the upper and lower rim portions of the front frame 110 is formed as a curved region and both side edge portions adjacent to the curved region are formed in a straight line region, The LCD panel 130, the prism sheet 140, the diffusion sheet 150, and the second protective sheet 160 may also maintain a shape corresponding to the shape of the front frame 110.

When the first protective sheet 120, the LCD panel 130, the prism sheet 140, the diffusion sheet 150, and the second protective sheet 160 are inserted into the front frame 110, 170 may be fitted in the front frame 110 so as to cover the front frame 110.

The rear frame 170 may have a shape corresponding to the front frame 110 so as to cover the front frame 110. For example, the upper and lower edges of the rear frame 170 may include a curved region and a linear region having a predetermined curvature corresponding to the front frame 110. The central portion at the corners forming the upper and lower rims may be formed as a curved region, and the curved region and the adjacent side edge portions may be linear regions.

Various components and covers for driving the curved display panel 200 may be disposed on the rear surface of the rear frame 170.

For example, the LED driving circuit 190, the power module 200 and the like are disposed behind the rear frame 170, and the LED driving circuit 190, the power module 200, The second cover 210, and the third cover 220, as shown in Fig.

FIG. 2 is a perspective view of a curved display panel according to an embodiment of the present invention, FIG. 3 is a front view of the curved display panel of FIG. 2, and FIG. 4 is a view for explaining the curved surface of the curved display panel of FIG. 2 .

As shown in the figure, the A region existing at the center is a curved region, and the side region B adjacent to the A region is a linear region. The larger the curvature, the more force is applied to the outer LCD panel 130, which may cause a lot of unevenness.

5 is a view for explaining screen unevenness of an existing curved display panel.

As shown in FIG. 6, when the curved display panel is manufactured using the flat panel display panel, a large amount of force is applied to the outermost four portions of the LCD panel 130, thereby causing severe unevenness.

Therefore, the curved display panel according to the embodiment of the present invention has the curved region (A region) at the center and the linear region (B) at the both side edges adjacent to the curved region, ) Can be reduced. Therefore, it is possible to improve the screen unevenness issued at the outermost edge of the curved display panel.

As described above, the curved display panel according to an embodiment of the present invention includes the first protective sheet 120, the LCD panel 130, the prism sheet 140, and the second protective sheet 120 on the front frame 110 including the curved region. The diffusion sheet 150 and the second protective sheet 160 are fitted and fixed in a curved shape so that the LCD panel 130 can be easily and inexpensively manufactured without etching the LCD panel 130.

The above-described curved surface display panel manufacturing method and the curved display panel are not limited to the configuration and method of the above-described embodiments, but the embodiments may be applied to all or some of the embodiments May be selectively combined.

100: Surface Display Panel
110: front frame
120: first protective sheet
130: LCD panel
140: prism sheet
150: diffusion sheet
160: Second protective sheet
170: rear frame
180: first cover
190: LED driving circuit
200: Power module
210: second cover
220: third cover

Claims (10)

A method of manufacturing a curved display panel,
Fitting the flat display panel so that at least a portion of the flat display panel is curved so that the flat display panel is fixed to the front frame, the front frame including a corner formed with a curved region; And
The method comprising the steps of: covering a rear frame on a side opposite to the front frame with respect to the flat display panel, wherein the rear frame includes corners formed with a curved region so as to be covered on a rear face of the front frame; ≪ / RTI > [2] The apparatus of claim 1, wherein the corner formed by the curved region included in the front frame and the edge included in the rear frame are
Wherein the curved display panel further comprises a linear region. 3. The method of claim 2,
Wherein the curved region is formed on both sides of the edge adjacent to the curved region. The method of claim 3,
Wherein the front frame has an area other than the frame open so that the effective display area of the flat display panel is visible on the outside. The method of claim 3,
Wherein the front frame is made of a transparent material so that the effective display area of the flat display panel is visible outside. A front frame including edges formed with curved regions;
A flat panel display panel in which at least some regions are fitted to the front frame while maintaining a curved shape; And
And a rear frame disposed on the opposite side of the front frame with respect to the flat display panel and covering the front frame, wherein the rear frame includes corners formed with a curved region so as to cover the rear face of the front frame A curved display panel. [7] The apparatus of claim 6, wherein a corner formed by the curved region included in the front frame and an edge included in the rear frame
Wherein the curved surface display panel further includes a straight line area. 8. The method of claim 7,
Wherein the curved region is formed on both side portions of an edge adjacent to the curved region. 9. The method of claim 8,
Wherein the front frame has an area other than the frame open so that the effective display area of the flat display panel is visible on the outside. 9. The method of claim 8,
Wherein the front frame is made of a transparent material so that the effective display area of the flat display panel is visible outside.

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