KR20100082439A

KR20100082439A - Liquid crystal display device

Info

Publication number: KR20100082439A
Application number: KR1020090001754A
Authority: KR
Inventors: 김한영; 엄선관
Original assignee: 엘지이노텍 주식회사
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2010-07-19

Abstract

The present invention relates to a liquid crystal display device, comprising: a liquid crystal panel; A light transmitting layer positioned above the liquid crystal panel; And adhesion means formed in a space between the liquid crystal panel and the light transmitting layer to bond the liquid crystal panel and the light transmitting layer, and an outflow prevention portion protruding upward is formed in the outer region of the liquid crystal panel.

Description

Liquid crystal display device

The present invention relates to a liquid crystal display device.

In general, various electronic devices such as a mobile communication terminal, a digital camera, a notebook computer, a monitor, a TV, and the like include an image display device for displaying an image. Various types may be used as the image display device, but a flat display device having a flat plate shape is mainly used, and a liquid crystal display (LCD) is particularly widely used among the flat display devices.

A liquid crystal display device capable of improving the image quality of a display image is provided.

A liquid crystal display device according to an embodiment of the present invention, a liquid crystal panel; A light transmitting layer positioned above the liquid crystal panel; And an adhesive means formed in a space between the liquid crystal panel and the light transmitting layer, the adhesive means for adhering the liquid crystal panel and the light transmitting layer, and an outflow prevention portion protruding upward in the outer region of the liquid crystal panel.

According to the present invention, by forming an adhesive means having a light transmittance in the space between the window and the liquid crystal panel disposed on the upper side of the liquid crystal panel to protect the liquid crystal panel from external impact and at the same time improve the outdoor visibility, the liquid crystal panel By forming a barrier in the outer region of the to reduce the outflow to the outside during the application of the adhesive means.

Hereinafter, a liquid crystal display according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a configuration of a liquid crystal display device, and the liquid crystal display device may include a liquid crystal panel 100 and a light transmitting layer 200.

Referring to FIG. 1, the light transmitting layer 200 is disposed on the upper side of the liquid crystal panel 100 at regular intervals, and transmits light emitted from the liquid crystal panel 100 to display an image displayed on the liquid crystal panel 100. Make it visible from outside.

In one embodiment of the present invention, the light transmitting layer 200 may be a window for protecting the liquid crystal panel 100 from an external impact, for which a plastic such as acrylic (acrylic) having an impact resistance ) Material or glass (glass) material.

As another embodiment of the present invention, the light transmitting layer 200 may be a touch panel capable of detecting a contact of an object.

When an air gap exists in the space between the liquid crystal panel 100 and the light transmitting layer 200, panel light emitted upward from the liquid crystal panel 100 may be scattered in the air layer. In addition, the panel light may be refracted by the difference in refractive index between the light transmitting layer 200 and the air layer, and the image quality of the image may be deteriorated, such as the outdoor visibility of the display image is reduced by the scattering or refraction of the panel light. Can be.

As shown in FIG. 1, the liquid crystal display according to the exemplary embodiment of the present invention forms an adhesive means 300 having light transparency in a space between the liquid crystal panel 100 and the light transmitting layer 200, thereby forming a liquid crystal panel. 100 and the light transmitting layer 200 may be bonded to each other.

The bonding means 300 may be made of a resin which is transparent, impact resistant and adhesive, thereby passing the light emitted from the liquid crystal panel 100 and simultaneously protecting the liquid crystal panel 100 from external impact. can do.

In addition, the refractive index of the adhesive means 300 may be the same as the refractive index of the light transmission layer 200. For example, when the refractive index of the liquid crystal panel 100 and the light transmitting layer 200 is about 1.52, the adhesive means 300 may also have a refractive index of about 1.52.

As described above, since the adhesive means 300 is made of a material having the same refractive index as that of the liquid crystal panel 100 or the light transmitting layer 200, the light emitted from the liquid crystal panel 100 is upper surface of the liquid crystal panel 100. Alternatively, the deflection of the lower surface of the light transmitting layer 200 may be reduced.

The adhesion means 300 may be formed by applying a liquid adhesive material on the liquid crystal panel 100 or the light transmitting layer 200 and then combining the liquid crystal panel 100 and the light transmitting layer 200.

For example, after applying a resin having an adhesive property in the liquid state on the light transmitting layer 200, the liquid crystal panel is placed on the light transmitting layer 200 to which the resin is applied, and the liquid crystal panel is cured by curing the resin. 100 and the light transmitting layer 200 may be combined, and the adhesive means 300 as described above may be formed between the liquid crystal panel 100 and the light transmitting layer 200.

However, when the adhesive material in the liquid state, for example, the resin in the liquid state or when the liquid crystal panel 100 and the light transmitting layer 200 to which the adhesive material is applied, the adhesive material may flow out to the side. Due to the leakage of the adhesive material as described above, the adhesive means 300 may not be sufficiently formed in the space between the liquid crystal panel 100 and the light transmitting layer 200, which may be the liquid crystal panel 100 and the light transmitting layer ( The adhesion of the liquid crystal display 200 may be reduced, thereby reducing the reliability of the liquid crystal display. In addition, an additional process for removing the leaked adhesive material may be required in manufacturing the liquid crystal display, and the performance of the liquid crystal display may be degraded by the leaked adhesive material.

In the liquid crystal display according to the exemplary embodiment of the present invention, a structure may be formed in the outer region of the liquid crystal panel 100 to prevent the applied adhesive material, for example, a resin in a liquid state, from leaking to the side.

Hereinafter, embodiments of the configuration of the liquid crystal display according to the present invention will be described in detail with reference to FIGS. 2 to 4. A description of the same configuration as that described with reference to FIG. 1 among the configurations of the liquid crystal display shown in FIGS. 2 to 4 will be omitted.

Referring to FIG. 2, an outflow prevention part 110 is formed in an outer region of the liquid crystal panel 100, an adhesive means 110 for bonding the light transmitting layer 200 to an inner region of the liquid crystal panel 100, For example, transparent resin may be formed.

The leakage preventing part 110 formed at the outer region of the liquid crystal panel 100 may prevent the applied adhesive material from leaking out to the side surface, and may be set at a predetermined interval between the liquid crystal panel 100 and the light transmitting layer 200. To maintain. Accordingly, an adhesive material, for example, a resin, may be sufficiently applied to the space between the liquid crystal panel 100 and the light transmitting layer 200, thereby allowing the thickness of the adhesive means 110 to have a desired adhesiveness and light transmittance. And impact resistance.

The spill prevention part 110 may be formed on the upper surface of the liquid crystal panel 100 by printing or sputtering, and may be made of plastic or glass material such as acrylic. In addition, the height h1 of the leakage preventing part 110 may be about 65 μm.

In addition, the leakage preventing unit 110 may be made of a metal material, and in this case, light incident from the liquid crystal panel 100 may be reflected upward.

As shown in FIG. 2, a light shielding pattern 120 may be formed on the leakage preventing part 110, more specifically, between the leakage preventing part 100 and the light transmitting layer 200. . For example, the light blocking pattern 120 may be a black pattern printed on the lower surface of the light transmitting layer 200, and may have a thickness h2 of about 5 μm.

Referring to FIG. 3, the liquid crystal panel 100 may include a TFT substrate 130, a color filter substrate 140, and a liquid crystal layer 150. The TFT substrate 130 has a plate shape and may include a transparent substrate and a TFT layer. The color filter substrate 140 is disposed on the TFT substrate 130 and may include a transparent substrate and a color filter layer. In addition, the liquid crystal layer 130 is disposed between the TFT substrate 110 and the color filter substrate 120.

As shown in FIG. 3, the leakage preventing unit 160 may be connected to the liquid crystal panel 100, more specifically, the color filter substrate 140 of the liquid crystal panel 100.

In this case, the inner region of the transparent substrate including the glass or the transparent film of the color filter substrate 140 may be etched to form an outflow prevention part 160 protruding upward.

Referring to FIG. 4, the upper polarizer 170 and the lower polarizer 180 are respectively disposed on the upper and lower surfaces of the liquid crystal panel 100, that is, the upper surface of the color filter substrate 140 and the lower surface of the TFT substrate 130. ) May be formed.

As shown in FIG. 4, the upper polarizer 170 may be formed only in an inner region in which the leakage preventing part 160 is not formed among the upper surfaces of the color filter substrate 140.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a cross-sectional view briefly showing the configuration of a liquid crystal display device.

2 to 4 are cross-sectional views illustrating embodiments of a configuration of a liquid crystal display according to the present invention.

Claims

Liquid crystal panels;

A light transmitting layer positioned above the liquid crystal panel; And

It is formed in the space between the liquid crystal panel and the light transmitting layer, and comprises an adhesive means for bonding the liquid crystal panel and the light transmitting layer,

And an outflow prevention part protruding upward in an outer region of the liquid crystal panel.

The method of claim 1,

And a light blocking pattern formed on the leakage preventing part.

The method of claim 1,

And the leakage preventing part is formed to protrude on the liquid crystal panel by printing or sputtering.

The method of claim 1,

The liquid crystal panel includes a liquid crystal layer formed between the first and second substrates coupled up and down, and the first and second substrates.

And the leakage preventing part is formed by etching an inner region of an upper surface of the first substrate.

The method of claim 1,

The liquid crystal display device of which the leakage preventing part is made of acrylic or glass.

The method of claim 1,

And the adhesive means is a resin having light transmittance and impact resistance.

The method of claim 1,

The refractive index of the bonding means is substantially the same as the refractive index of the light transmitting layer.

The method of claim 1,

And the light transmitting layer is a window for protecting the liquid crystal panel from external impact.

The method of claim 1,

The light transmitting layer is a liquid crystal display device.