KR20060028052A - Display apparatus - Google Patents

Abstract

 Disclosed is a display device that prevents assembly failure and further improves display quality of an image. The display device includes a storage container, a display panel, and a double-sided adhesive member. The storage container extends to form the storage space from the bottom surface, the edge of the bottom surface, sidewalls having cutouts partially cut into grooves from the top, and formed at positions where the bottom surface and the sidewalls meet and are respectively formed into the interior of the storage space. An extended panel seat. The display panel is disposed on the panel mounting portion. The double-sided adhesive member is interposed between the panel seating portion and the display panel, and includes an adhesive force reinforcement portion partially extended from the panel fixing portion to the top surface of the cutout to prevent the display panel from being separated from the panel seating portion. As such, the adhesion reinforcing portion formed on the double-sided adhesive member is attached on the cutout formed on the sidewall of the storage container, thereby preventing the display panel from being lifted up from the storage container.

Description

Display {DISPLAY APPARATUS}

1 is an exploded perspective view illustrating a display device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line I1-I2 of FIG. 1.

3 is an exploded perspective view illustrating a display device according to a second exemplary embodiment of the present invention.

4 is a perspective view illustrating an assembled state of the display device of FIG. 3.

5 is a cross-sectional view taken along the line II1-II2 in FIG. 4.

<Explanation of symbols for the main parts of the drawings>

    100: storage container 110: bottom surface

    120: side wall 122: incision

    130: panel mounting portion 200: display panel

    210: first substrate 220: second substrate

    230; Liquid crystal layer 240; LCD leak prevention part

    300: double-sided adhesive member 310: adhesive strength reinforcement

    400: light source module 500; Optics

    600: chassis 700: display device

The present invention relates to a display device. More specifically, the present invention relates to a display device that improves display quality of an image by preventing assembly failure of a storage container and a display panel.

In general, an information processing apparatus includes a display device for displaying processed data as an image, for example, a liquid crystal display (LCD) or a cathode-ray tube.

Among them, the liquid crystal display displays an image by using the electrical and optical characteristics of the liquid crystal. Compared to the cathode ray tube display device, the liquid crystal display device has a thin thickness and a light weight, and has advantages of low power consumption and low driving voltage.

For these reasons, the liquid crystal display device has recently been used as a display device of various electronic devices such as a desktop computer, a notebook computer and a mobile phone.

Conventional liquid crystal displays have a display panel in which liquid crystal is interposed between two display substrates, a backlight assembly for supplying light to the display panel, and a storage container accommodating the display panel and the backlight assembly. Include.

The conventional display panel further includes a printed circuit board (PCB) for generating an image control signal, and a flexible printed circuit (FPC) for electrically connecting the printed circuit board and the display board.                         

In general, in a small and medium-sized liquid crystal display device having a small screen size, the printed circuit board is bent together with the flexible circuit board and disposed on the outer side of the bottom surface of the storage container.

However, due to the elasticity of the bent flexible printed circuit board, the display panel is frequently spaced apart from the storage container, which makes it difficult to assemble the storage container and the display panel, thereby frequently degrading the display quality of the image.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a display device in which the display panel is prevented from being lifted up to improve display quality.

The display device for achieving the object of the present invention includes a storage container, a display panel and a double-sided adhesive member. The storage container extends to form the storage space from the bottom surface, the edge of the bottom surface, sidewalls having cutouts partially cut into grooves from the top, and formed at positions where the bottom surface and the sidewalls meet and are respectively formed into the interior of the storage space. An extended panel seat. The display panel is disposed on the panel mounting portion. The double-sided adhesive member is interposed between the panel seating portion and the display panel, and includes an adhesive force reinforcement portion partially extended from the panel fixing portion to the top surface of the cutout to prevent the display panel from being separated from the panel seating portion.

According to the present invention, the adhesion reinforcing portion extending from the double-sided adhesive member is attached to the cutout formed on the side of the storage container, thereby preventing the display panel from falling off the panel seating portion, and as a result, the display quality of the image can be further improved. have.

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

Display

Example 1

1 is an exploded perspective view illustrating a display device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line I1-I2 of FIG. 1.

1 and 2, the display device 700 according to the present exemplary embodiment includes a storage container 100, a display panel 200, and a double-sided adhesive member 300.

The storage container 100 includes a bottom surface 110 and sidewalls 120 extending from the bottom surface 110 to form a storage space.

The sidewall 120 of any one of the sidewalls 120 of the storage container 100 is formed with a cutout portion 122 in which a portion of the sidewall 120 is cut into a groove shape. The cutout 122 according to the present embodiment has a first height from the bottom surface 110.

The panel seating unit 130 is formed at a position where the bottom surface 110 and the sidewalls 120 meet and extend from the bottom surface 110 and the sidewalls 120 into the interior of the storage space, respectively. The panel seating unit 130 according to the present exemplary embodiment has a second height from the bottom surface 110, and the second height of the panel seating unit 130 is equal to the first height of the cutout 122 formed in the side wall 120. It is preferred to have the same height.                     

The display panel 200 according to the present exemplary embodiment includes a first substrate 210, a second substrate 220, a liquid crystal layer 230, a liquid crystal sealing member 240, and a liquid crystal leakage preventing unit 244. It is disposed in the storage space of the container 100.

The first substrate 110 includes a plurality of pixel electrodes arranged in a matrix, thin film transistors (TFTs) and thin film transistors (TFTs) for applying a driving voltage to each pixel electrode. Signal lines for operating the respective ones.

The pixel electrode includes a transparent and conductive indium tin oxide film (ITO), an indium zinc oxide film (IZO), an amorphous indium tin oxide film (a-ITO), and the like. Is formed by patterning by a photo-etch process.

The second substrate 220 has a somewhat smaller area than the first substrate 210 and is disposed to face the first substrate 210. The second substrate 220 is disposed on the front surface of the second substrate 220, and color filters (eg, color filters) disposed where the transparent and conductive common electrode and the pixel electrodes face each other. Red color filters, green color filters, and blue color filters.

The liquid crystal layer 230 is interposed between the first substrate 210 and the second substrate 220 and changes the transmittance of light by an electric field formed between the pixel electrodes and the common electrode.

The liquid crystal sealing member 240 is disposed along the edges of the first substrate 210 and the second substrate 220 and includes, for example, a photocurable material. In the present embodiment, the photocurable material is cured by, for example, ultraviolet rays to firmly bond the first substrate 210 and the second substrate 220. In addition, the cured liquid crystal sealing member 240 spaces the first substrate 210 and the second substrate 220 apart from each other at predetermined intervals.

In the liquid crystal sealing member 240 disposed between the first substrate 210 and the second substrate 220, a liquid crystal injection hole 242 suitable for injecting a liquid crystal having fluidity is formed. The liquid crystal is injected between the first substrate 210 and the second substrate 220 through the liquid crystal injection hole 242 in a vacuum pressure environment lower than atmospheric pressure, and the injected liquid crystal is the first substrate 210 and the second substrate 220. ) Is placed between.

The liquid crystal leakage preventing unit 244 prevents the liquid crystal from leaking from the first and second substrates 210 and 220 after the liquid crystal is interposed between the first and second substrates 210 and 220. For example, the liquid crystal leakage preventing unit 244 includes a photocurable material that is cured by light, and is disposed inside the liquid crystal injection hole 242. The liquid crystal leakage preventing unit 244 disposed in the liquid crystal injection hole 242 is cured by ultraviolet rays, for example, to seal the liquid crystal injection hole 242. Liquid crystal injected between the first substrate 210 and the second substrate 220 by the sealed liquid crystal injection hole 244 does not flow again through the liquid crystal injection hole 242.

The liquid crystal leakage preventing part 244 according to the present exemplary embodiment protrudes from the first substrate 210 and the second substrate 220 in a predetermined length, for example, about 0.5 mm in length.

For example, the double-sided adhesive member 300 may have a rectangular ring shape, and the double-sided adhesive member 300 according to the present exemplary embodiment may be a double-sided adhesive tape coated with an adhesive material on both sides. A portion of the upper surface of the double-sided adhesive member 300 is attached to the edge of the lower surface of the display panel 200, and a portion of the lower surface of the double-sided adhesive member 300 is attached to the panel seating portion 130 of the storage container 100. . As a result, the display panel 200 is coupled to the panel seating part 130 of the storage container 100 and fixed to the storage container 100.

The double-sided adhesive member 300 according to the present exemplary embodiment is disposed at a position facing the liquid crystal leakage preventing portion 244 of the display panel 200 and extends from the body of the double-sided adhesive member 300. Is further formed.

The adhesion reinforcing part 310 is attached to the cutout 122 formed on the side wall 120 to further increase the adhesive force between the double-sided adhesive member 300 and the panel seating part 130. In addition, the adhesive force reinforcing part 310 according to the present exemplary embodiment may be attached to the liquid crystal leakage preventing part 244 to further increase the adhesive force between the double-sided adhesive member 300 and the display panel 200.

As such, the display panel 200 may be attached by attaching the adhesion reinforcing part 310 to the cutout 122 formed on the sidewall 120 to increase the adhesive force between the double-sided adhesive member 300 and the panel seating part 130. The separation from the storage container 100 can be prevented, and as a result, the assemblability of the display panel 200 and the storage container 100 and the display quality of the image can be improved.

The display device 600 according to the present exemplary embodiment may further include a light source module 300 that provides light to the display panel 100.

The light source module 300 according to the present exemplary embodiment is disposed between the display panel 100 and the bottom surface 210 of the storage container 200, and generates light from the light source 310 and the light source 310 that generate light. It includes a light guide plate 320 to guide the display panel 100.                     

The light source 310 according to the present embodiment is a light emitting diode, for example. For example, the light source 310 includes a white light emitting diode that generates white light. Alternatively, the light sources 310 according to the present exemplary embodiment may include a red light emitting diode for generating red light, a green light emitting diode for generating green light, and a blue light emitting diode for generating blue light.

Example 2

3 is an exploded perspective view illustrating a display device according to a second exemplary embodiment of the present invention. 4 is a perspective view illustrating a cross section of the line II1-II2 in FIG. 3.

3 and 4, the display device 600 according to the present embodiment includes a storage container 100, a display panel 200, a double-sided adhesive member 300, a light source module 400, and an optical member 500. It includes.

The storage container 100 according to the present embodiment includes a bottom surface 110 and sidewalls 120 extending from the bottom surface 110 to form a storage space. The bottom surface 110 of the storage container 100 according to the present embodiment, for example, most of the bottom surface may be opened.

One sidewall 120 of any one of the sidewalls 120 of the storage container 100 is formed with a first cutout 122 having a portion thereof cut into a groove shape. The cutout 122 according to the present embodiment has a first height from the bottom surface 110.

In the present exemplary embodiment, a second cutout 124 having a portion of an upper portion cut in a groove shape may be further formed on the sidewall 120 disposed to face the sidewall 120 on which the first cutout 122 is formed. . In addition, a plurality of coupling rings 126 protruding to a predetermined length may be further formed on the outer side surface of the side wall 120 of the storage container 100.

The panel seating unit 130 is formed at a position where the bottom surface 110 and the sidewalls 120 meet and extend from the bottom surface 110 and the sidewalls 120 into the interior of the storage space, respectively. The panel seating unit 130 according to the present exemplary embodiment has a second height from the bottom surface 110, and the second height of the panel seating unit 130 is equal to the first height of the cutout 122 formed in the side wall 120. It is preferred to have the same height.

The display device 700 according to the present exemplary embodiment may further include a chassis 600 coupled to the storage container 100 to increase the strength of the storage container 100.

The chassis 600 includes a chassis bottom surface 610 and chassis sidewalls 620 extending from the chassis bottom surface 610, and the chassis sidewalls 620 have a plurality of coupling parts 622 having coupling holes 624 formed therein. ) Are formed. Each coupling hole 624 is coupled to the coupling rings 126 of the side wall 120 of the storage container 100 to fix the chassis 600 to the storage container 100.

The display panel 200 according to the present exemplary embodiment may include a first substrate 210, a second substrate 220, a liquid crystal layer 230, a liquid crystal sealing member 240, a liquid crystal leakage preventing unit 244, a printed circuit board ( 250 and a flexible circuit board 260, and are disposed in a storage space of the storage container 100.

The first substrate 210 includes a plurality of pixel electrodes arranged in a matrix, thin film transistors (TFTs) for applying a driving voltage to each pixel electrode, and signal lines for operating the thin film transistors (TFTs), respectively. Include. On the upper surface of the first substrate 210 according to the present embodiment, a first optical plate 212 for improving optical characteristics of light, for example, polarizing light, may be further disposed.

The second substrate 220 has a somewhat smaller area than the first substrate 210 and is disposed to face the first substrate 210. The second substrate 220 includes a color filter disposed on the front surface of the second substrate 220 and disposed to face the transparent and conductive common electrode and the pixel electrodes. A second optical plate 222 may be further disposed on a lower surface of the second substrate 220 according to the present embodiment, for example, to improve optical characteristics of light, for example, to polarize light.

The liquid crystal layer 230 is interposed between the first substrate 210 and the second substrate 220 and changes the transmittance of light by an electric field formed between the pixel electrodes and the common electrode.

The liquid crystal sealing member 240 is disposed along the edges of the first substrate 210 and the second substrate 220 and includes, for example, a photocurable material. In the present embodiment, the photocurable material is cured by, for example, ultraviolet rays to firmly bond the first substrate 210 and the second substrate 220. In addition, the cured liquid crystal sealing member 240 spaces the first substrate 210 and the second substrate 220 apart from each other at predetermined intervals.

In the liquid crystal sealing member 240 disposed between the first substrate 210 and the second substrate 220, a liquid crystal injection hole 242 suitable for injecting a liquid crystal having fluidity is formed. The liquid crystal is injected between the first substrate 210 and the second substrate 220 through the liquid crystal injection hole 242 in a vacuum pressure environment lower than atmospheric pressure, and the injected liquid crystal is the first substrate 210 and the second substrate 220. ) Is placed between.

The liquid crystal leakage preventing unit 244 prevents the liquid crystal from leaking from the first and second substrates 210 and 220 after the liquid crystal is interposed between the first and second substrates 210 and 220. For example, the liquid crystal leakage preventing unit 244 includes a photocurable material that is cured by light, and is disposed inside the liquid crystal injection hole 242. The liquid crystal leakage preventing unit 244 disposed in the liquid crystal injection hole 242 is cured by ultraviolet rays, for example, to seal the liquid crystal injection hole 242. Liquid crystal injected between the first substrate 210 and the second substrate 220 by the sealed liquid crystal injection hole 244 does not flow again through the liquid crystal injection hole 242.

The liquid crystal leakage preventing part 244 according to the present exemplary embodiment protrudes from the first substrate 210 and the second substrate 220 in a predetermined length, for example, about 0.5 mm in length.

The printed circuit board 250 includes a driving circuit therein, and the driving circuit generates an image control signal for controlling the thin film transistor TFT.

The flexible circuit board 260 electrically connects the printed circuit board 250 and the first substrate 210 to provide an image control signal generated from the printed circuit board 250 to the first substrate 210. In the present embodiment, a driving chip 214 for converting the image control signal into a driving signal may be further formed on the first substrate 210.

In addition, the flexible circuit board 260 according to the present embodiment is bent through the cutout 226, so that the printed circuit board 250 may be disposed on, for example, an outer surface of the chassis bottom surface 610. Can be.

For example, the double-sided adhesive member 300 may have a rectangular annular shape, and the double-sided adhesive member 300 may be a double-sided adhesive tape having an adhesive material applied to both sides thereof. A portion of the upper surface of the double-sided adhesive member 300 is attached to the edge of the lower surface of the display panel 200, and a portion of the lower surface of the double-sided adhesive member 300 is attached to the panel seating portion 130 of the storage container 100. . As a result, the display panel 200 is coupled to the panel seating part 130 of the storage container 100 and fixed to the storage container 100.

The double-sided adhesive member 300 according to the present exemplary embodiment is disposed at a position facing the liquid crystal leakage preventing portion 244 of the display panel 200 and extends from the body of the double-sided adhesive member 300. Is further formed.

The adhesion reinforcing part 310 is attached to the cutout 122 formed on the side wall 120 to further increase the adhesive force between the double-sided adhesive member 300 and the panel seating part 130. In addition, the adhesive force reinforcing part 310 according to the present exemplary embodiment may be attached to the liquid crystal leakage preventing part 244 to further increase the adhesive force between the double-sided adhesive member 300 and the display panel 200.

As such, the display panel 200 may be attached by attaching the adhesion reinforcing part 310 to the cutout 122 formed on the sidewall 120 to increase the adhesive force between the double-sided adhesive member 300 and the panel seating part 130. The separation from the storage container 100 can be prevented, and as a result, the assemblability of the display panel 200 and the storage container 100 and the display quality of the image can be improved.

The light source module 400 is disposed between the display panel 200 and the bottom surface 110 of the storage container 100 and displays the light source 410 for generating light and the light generated by the light source 410. It includes a light guide plate 420 to guide. The optical module 400 according to the present exemplary embodiment may further include a reflector 422 disposed under the light guide plate 420 to reflect the light leaked from the light guide plate 420.

The light source 410 according to the present embodiment is, for example, a light emitting diode. For example, the light source 410 includes a white light emitting diode that generates white light. Alternatively, the light sources 410 according to the present exemplary embodiment may include a red light emitting diode for generating red light, a green light emitting diode for generating green light, and a blue light emitting diode for generating blue light.

The optical member 500 is disposed between the light source module 400 and the display panel 200 to improve optical characteristics of light generated by the light source 410. The optical member 500 includes, for example, a diffusion sheet 510 for diffusing light and a prism sheet 520 for improving the vertical luminance of the light through reflection and refraction.

In addition, the optical member 500 may further include, for example, a protective sheet 530 for protecting the prism sheet 520. The protective sheet 530 according to the present embodiment is in contact with a portion of the lower surface of the double-sided adhesive member 300, and the protective sheet 530 is coupled to the double-sided adhesive member 300 through the contacting surface.

According to the present invention, the adhesion reinforcing portion is attached to the cutout formed on the side wall to increase the adhesive force between the double-sided adhesive member and the panel seating portion to prevent the display panel from being separated from the storage container, and as a result the display panel And assembling of the storage container and the display quality of the image can be improved.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (7)

A bottom surface, side walls extending to form a storage space from an edge of the bottom surface and having cutouts partially cut into a groove shape from an upper portion thereof, and formed at positions where the bottom surface and side walls meet and are respectively formed into the interior of the storage space; A storage container including an extended panel seating portion; A display panel disposed on the panel seating portion; And A double-sided adhesive interposed between the panel seating portion and the display panel and including an adhesive force reinforcement portion partially extended from the panel fixing portion to an upper surface of the cutout to prevent the display panel from being separated from the panel seating portion; A display device comprising a member. The display device of claim 1, wherein the double-sided adhesive member is a double-sided adhesive tape. The display device of claim 1, wherein a first height of the upper surface of the cutout portion is substantially the same as a second height of the panel seating portion from the bottom surface. The display panel of claim 1, wherein the display panel includes a liquid crystal leakage prevention part formed at a portion corresponding to the cutout to prevent leakage of the liquid crystal injected into the display panel and protruding from the display panel and adhered to the adhesion reinforcing portion. Display device characterized in that. The display device of claim 1, wherein a light source module for providing light to the display panel is disposed between the display panel and the bottom surface. The display device of claim 5, wherein the light source module comprises a light source for generating the light and a light guide plate for guiding the light to the display panel. The display device of claim 6, wherein the light source is a light emitting diode.

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