KR20060125325A - Liquid crystal display device - Google Patents

Abstract

An LCD is provided to prevent the damage of a user connector, thereby the assembling defect of the LCD, by forming a bending portion for shielding the user connector on the cover shield. A backlight unit is disposed below an LCD panel having a driver. A cover bottom(124) is formed to wrap a lower side and a lateral side of the backlight unit. A PCB(Printed Circuit Board)(120) is connected to the driver, and disposed on an upper side of the cover bottom. A user connector(150) is formed on an upper side of the PCB. A cover shield(128) is distanced from the user connector, and has a bending portion(126) for shielding an upper portion of the user connector.

Description

Liquid crystal display device

1 is an exploded perspective view of a conventional liquid crystal display device

FIG. 2 is an exploded perspective view illustrating a rear surface of the liquid crystal display of FIG. 1.

3 is a photo showing in detail the user connector portion of the conventional liquid crystal display device

4 is an exploded perspective view illustrating a rear surface of the liquid crystal display according to the first embodiment of the present invention.

FIG. 5 is an enlarged side view of the user connector of FIG. 4 and a cover shield corresponding thereto; FIG.

6 is an exploded perspective view illustrating a rear surface of a liquid crystal display according to a second exemplary embodiment of the present invention.

FIG. 7 is an enlarged side view of the user connector of FIG. 6 and a cover shield corresponding thereto; FIG.

* Description of symbols on the main parts of the drawings *

110, 210: TCP 120, 220: Source PCB

124, 224: cover bottom 126: 'Z' shaped bending part

128, 228: Cover shield 130, 230: Top case

132, 232: first hole 134, 234: second hole

136, 236: screw 226: 'L' shaped bending part

150, 250: user connector

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and in particular, to prevent damage to a user connector through mechanical reinforcement of a cover shield, thereby preventing damage during inspection work or when the user connector is connected to the system. The present invention relates to a liquid crystal display device capable of preventing deterioration.

As the information society develops, the demand for display devices is increasing in various forms, and in recent years, liquid crystal display devices (LCDs), plasma display panels (PDPs), electro luminescent displays (ELD), and vacuum fluorescent (VFD) Various flat panel display devices such as displays have been studied, and some of them are already used as display devices in various devices.

Among them, LCD is the most widely used as the substitute for CRT (Cathode Ray Tube) for mobile image display device because of its excellent image quality, light weight, thinness, and low power consumption. In addition to the use of the present invention has been developed in various ways such as a television and a computer monitor for receiving and displaying broadcast signals.

In order to use such a liquid crystal display as a general screen display device in various parts, it is a matter of how high quality images such as high definition, high brightness and large area can be realized while maintaining the characteristics of light weight, thinness and low power consumption. Can be.

A general liquid crystal display device includes a liquid crystal display module, a system for applying power required for driving the liquid crystal display module and generating a control signal for driving the liquid crystal display module and the liquid crystal display module and the system to protect from the outside. It consists of an external case.

The outer case is a material for protecting the liquid crystal display module and the system, and has a buffering effect against impact, and casings the liquid crystal display module and the system under conditions that do not reduce the efficiency of the display area. casing

Hereinafter, a liquid crystal display according to the related art will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a conventional liquid crystal display, and FIG. 2 is an exploded perspective view showing a rear surface of the liquid crystal display of FIG. 1.

As shown in FIG. 1, a conventional liquid crystal display device includes a liquid crystal panel 2, a back light unit, a board assembly unit for driving the liquid crystal panel 2, and a casing for casing them. It contains water.

Here, the liquid crystal panel 2 is a liquid crystal layer formed between the first substrate 4 on which the TFT array is formed, the second substrate 6 on which the color filter array is formed, and the first and second substrates 4 and 6. (Not shown).

The first substrate (TFT array substrate) 4 has a plurality of gate lines (not shown) arranged in one direction at regular intervals, and a plurality of data lines arranged at regular intervals in a direction perpendicular to the gate lines. (Not shown) and the plurality of pixel electrodes (not shown) formed in a matrix form in each pixel region defined by crossing the gate lines and the data lines and the signals of the gate lines to be switched. A plurality of thin film transistors (not shown) for transmitting the to each pixel electrode are formed.

The second substrate (color filter substrate) 6 includes a light shielding layer (not shown) for blocking light in portions other than the pixel region, and R, G, and B color filter layers (not shown) for expressing color colors. ) And a common electrode (not shown) formed on the entire surface of the second substrate 6.

In addition, although not shown, a first polarizing plate and a second polarizing plate are further formed on the rear surfaces of the second substrate and the first substrate to adjust light transmission according to the alignment of the liquid crystal.

The backlight unit includes an optical film 18 positioned below the liquid crystal panel 2, a fluorescent lamp (not shown) formed on both sides or one side of the liquid crystal panel 2, and a lower portion of the optical film. And a light guide plate 16 positioned at the fluorescent lamp side.

The board assembly unit includes a drive IC 12 formed on the TCP 14 to apply a drive signal to each of the gate wiring and the data wiring, a PCB 20 connected to the drive IC 12 on the data wiring side, and And a cover shield 28 covering the PCB 20. In the illustrated structure, the drive IC on the gate wiring side and the drive IC on the data wiring side are electrically connected through a line on glass (LOG) wiring. The TCP film has a structure in which a metallic conductive layer is inserted in a single layer or multiple layers between layers of a flexible material such as polyamide.

In some cases, the gate or data drive IC may be embedded in the liquid crystal panel. In addition, the PCB may be configured on the data wiring side as one, or may form a gate PCB and a data PCB corresponding to the gate drive IC and the data drive IC, respectively.

The casing includes a cover bottom 26 disposed under a backlight unit including a fluorescent lamp, a light guide plate 16, and the like, and a frame shape corresponding to an upper portion of the optical sheet 18 so as to correspond to the liquid crystal panel 2. A guide panel 22 for guiding the position of the panel), a support main 24 for seating the optical sheet and the light guide plate inside the cover bottom 26, the liquid crystal panel 2 and the following structure It comprises a case top 30 formed in a shape surrounding the edge and its side.

Meanwhile, the cover shield 28 included in the board assembly unit may be viewed as a casing.

As shown in FIG. 2, when the conventional liquid crystal display is turned upside down and looks at the rear surface, a cover bottom 26 appears on the upper and side surfaces of the rear surface, and includes the data drive IC through the side and the upper surface of the cover bottom 26. It is observed that TCP 10 is folded over. In addition, the overlying TCP 10 is in contact with the data PCB 20, and the data PCB 20 is located on the cover bottom 26. A cover shield 28 corresponds to an upper portion of the cover bottom 26 to cover the first hole 32 provided in the cover shield 28 and the second hole 34 provided in the cover bottom 26. It is assembled via a penetrating screw 36.

In this case, a user connector 50 is formed on the data PCB 20, and the cover shield 28 is formed with an open portion on the cover shield 28 to have a shape in which the user connector 50 is exposed. In addition, the user connector 50 facilitates connection with an external system (not shown).

3 is a photograph showing the user connector portion of the conventional liquid crystal display in detail.

As shown in FIG. 3, in the conventional liquid crystal display, the user connector 50 is exposed from the cover shield 28. In this case, the inspector exerts a force on the user connector 50 when the electrical signal is applied or when it is separated after the inspection. However, since the user connector 50 is exposed, damage may occur.

Here, the user connector 50 was formed to be spaced about 3 mm from the cover shield 28 at a distance on the side surface.

The conventional liquid crystal display as described above has the following problems.

In the conventional liquid crystal display module, a user connector is opened from the cover shield. Therefore, when the user connector is fastened to the system or detached from the system after the inspection, the user connector does not have a protective material on the upper side, so that breakage is likely to occur.

The present invention has been made to solve the above problems by preventing damage to the user connector through the mechanical shape reinforcement of the cover shield (Cover Shield), the quality of the damage due to the damage during inspection work or system It is an object to provide a liquid crystal display device which can prevent the decrease.

The liquid crystal display device of the present invention for achieving the above object includes a liquid crystal panel having a driver on one side, a backlight unit formed on the lower side of the liquid crystal panel, a cover bottom formed around the lower side and the side of the backlight unit; And a cover shield connected to the driver and having a PCB formed on an upper side of the cover bottom, a user connector formed on an upper side of the PCB, and a bent portion covering an upper portion of the user connector to be spaced apart from the user connector. There is a characteristic in that it is done.

The bending part has a 'Z' shape connected to the cover shield on a vertical side through which the user connector passes.

The bending part has a '-' shape connected to the cover shield on a vertical side through which the user connector passes.

The PCB is a data PCB.

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

4 is an exploded perspective view illustrating a rear surface of a liquid crystal display according to a first exemplary embodiment of the present invention, and FIG. 5 is an enlarged side view of the user connector of FIG. 4 and a corresponding cover shield (cover bottom in the liquid crystal display). And the structure between the case top and the structure of FIG. 1).

The liquid crystal display according to the first exemplary embodiment of the present invention includes a liquid crystal panel (not shown), a back light unit, a board assembly unit for driving the liquid crystal panel (not shown), and these. The casing is formed by including a casing, and is integrally formed with the cover shield 128 corresponding to the upper portion of the user connector 150, and further includes a bending part 126 covering the user connector 150. .

Here, the liquid crystal panel includes a first substrate (not shown) with a TFT array, a second substrate (not shown) with a color filter array, and a liquid crystal layer (not shown) formed between the first and second substrates. It is done by

The first substrate (TFT array substrate) has a plurality of gate lines (not shown) arranged in one direction at regular intervals, and a plurality of data lines (not shown) arranged at regular intervals in a direction perpendicular to the gate lines. ) And a plurality of pixel electrodes (not shown) formed in a matrix form in each pixel region defined by crossing each of the gate lines and the data lines and the signals of the gate lines to convert the signals of the data lines to each pixel. A plurality of thin film transistors (not shown) to be delivered to the electrode are formed.

The second substrate (color filter substrate) may include a light shielding layer (not shown) for blocking light in portions other than the pixel region, an R, G, and B color filter layer (not shown) for expressing color colors; A common electrode (not shown) formed on the entire surface of the second substrate is formed.

In addition, although not shown, a first polarizing plate and a second polarizing plate are further formed on the rear surfaces of the second substrate and the first substrate to adjust light transmission according to the alignment of the liquid crystal.

The backlight unit may include an optical film (not shown) positioned below the liquid crystal panel, a fluorescent lamp (not shown) formed on both sides or one side of the liquid crystal panel, and the lower portion of the optical film and positioned on the fluorescent lamp side. It comprises a light guide plate (not shown).

The board assembly unit may include a drive IC (not shown) formed on the TCP 110 to apply a drive signal to each of the gate wiring and the data wiring, a data PCB 120 connected to the drive IC on the data wiring side, and the And a cover shield 128 covering the data PCB 120. In the illustrated structure, the drive IC on the gate wiring side and the drive IC on the data wiring side are electrically connected through a line on glass (LOG) wiring.

The casing includes a cover bottom 124 formed around the back light unit including a fluorescent lamp, a light guide plate, and the like, and a top of the optical sheet in a frame shape to guide the position of the liquid crystal panel. A guide panel (not shown), a support main (not shown) for seating the optical sheet and the light guide plate inside the cover bottom 124, and edges and sides of the liquid crystal panel and the following structure. It includes a case top 130 formed in a wrapping shape.

As shown in FIG. 4, when the rear side of the cover bottom 124 is observed in detail, a cover bottom 124 appears on an upper surface and a side surface, and includes the data drive IC across the side and the upper surface of the cover bottom 124. It is observed that TCP 110 is folded over. In addition, the overlying TCP 110 is in contact with the data PCB 120, and the data PCB 120 is located on the cover bottom 124. A cover shield 128 corresponds to an upper portion of the cover bottom 124 to cover the first hole 132 provided in the cover shield 128 and the second hole 134 provided in the cover bottom 124. It is assembled via a penetrating screw 136.

In this case, a user connector 150 is formed on the data PCB 120, and the cover shield 128 has an open portion on the cover shield 128 to have a shape in which the user connector 150 is exposed. By being formed with, the user connector 150 facilitates connection with an external system (not shown).

As shown in FIG. 5, in the liquid crystal display according to the first exemplary embodiment of the present invention, the user connector 150 and the side of the cover shield corresponding thereto are described in detail. The user connector 150 has an end portion on the data PCB 120. It is formed close to the cover shield 128 is formed so that the 'Z'-shaped bending portion 126 is further extended from the side to cover the user connector 150.

In this case, the 'Z'-shaped bending part 126 is integrally formed with the cover shield 128 and extends from the cover shield 128, and is spaced apart from the user connector 150 by a predetermined distance (H). Is formed. This is to facilitate access of the user connector 150 and a connector (not shown) from an external system when connected to or disconnected from an external system (not shown). If the 'Z'-shaped bending part 126 is formed without being spaced apart from the user connector 150, the connection and disconnection work with the connector of the system is not easy and may be damaged when excessive force is applied. This is because there is concern. The 'Z'-shaped bending part 126 is formed to be spaced apart at a first interval in a portion where the user connector 150 is not formed, and relatively relative to the first interval at a portion where the user connector 150 corresponds. Small and spaced apart from the flat surface of the cover shield 128 that does not correspond to the user connector 150 by a second interval (H) of the user connector 150 and the 'Z'-shaped bending portion 126 With intervals.

Here, the second spacing (H) is formed to be spaced apart from the user connector 150 at intervals of about 1mm.

FIG. 6 is an exploded perspective view illustrating a rear surface of a liquid crystal display according to a second exemplary embodiment of the present invention, and FIG. 7 is an enlarged side view of the user connector of FIG. 6 and a cover shield corresponding thereto.

6 and 7, the liquid crystal display according to the second exemplary embodiment of the present invention except that the bending portion extending from the cover shield and covering the user connector is 'a' (inverted 'L'). Is the same as the first embodiment.

That is, the cover bottom 224 appears on the top and side surfaces of the rear side of the liquid crystal display, and the TCP 210 including the data drive IC (not shown) passes through the side and top surfaces of the cover bottom 224. Fold over is observed. In addition, the overlying TCP 210 is in contact with the data PCB 220, and the data PCB 220 is positioned on the cover bottom 224. A cover shield 228 may correspond to an upper portion of the cover bottom 224 to cover the first hole 232 provided in the cover shield 228 and the second hole 234 provided in the cover bottom 224. It is assembled via a penetrating screw 236.

In this case, a user connector 250 is formed on the data PCB 220, and the cover shield 228 has an open portion on the cover shield 228 so as to have a shape in which the user connector 150 is exposed. By being formed with, the user connector 250 facilitates connection with an external system (not shown).

The 'b' shaped bending part 226 is formed to be spaced apart from each other by about 1 mm with the user connector 250.

As shown in FIG. 7, in the liquid crystal display according to the second exemplary embodiment of the present invention, the user connector 250 and the side of the cover shield 228 corresponding thereto will be described in detail. It is formed close to the end on the PCB 220, the cover shield 228 is formed so that the 'b'-shaped bending portion 226 is further extended from the side to cover the user connector 250.

In this case, the 'b' shaped bending part 226 is integrally formed with the cover shield 228 and extends from the cover shield 228, and is spaced apart from the user connector 250 by a predetermined distance H. Is formed. This is to facilitate access of the user connector 250 and a connector (not shown) from an external system when connected to or disconnected from an external system (not shown). If the user connector 250 is not spaced apart and the 'b' shaped bending part 226 is formed, the connection and disconnection of the connector (not shown) of the system is not easy, and excessive force is applied. This is because there is a risk of damage.

Here, the 'b' shaped bending part 226 is formed so that the upper '-' shape of the 'a' shape covers the user connector 250, and the 'l' side of the 'l' shaped user connector ( It does not reach 250).

Meanwhile, reference numeral 230 not illustrated in FIG. 6 denotes a case top covering edges and sides of the liquid crystal panel (not shown) and the backlight unit (not shown).

Such a liquid crystal display device of the present invention, by reinforcing the cover shield shape, to prevent damage to the user connector (User Connector) damage, reducing the defects due to the conformity when assembling the liquid crystal module and the panel for sale to reduce the process step through improved workability And cost down effect is expected.

The liquid crystal display of the present invention as described above has the following effects.

In the structure of the cover shield in which the conventional user connector is opened, there is a risk of damage to the user connector when the user connector is assembled or detached from the system when the operator is inadvertent.

According to the present invention, the 'Z'-shaped bending portion or the' -'- shaped bending portion is formed to cover the user connector portion, thereby covering the user connector primarily, thereby preventing damage to the user connector. As such, by preventing damage to the user connector, it is possible to expect a reduction in process steps and a cost down effect by improving workability by reducing defects due to molding when assembling the liquid crystal module and the panel for sale.

Claims (4)

A liquid crystal panel provided with a driver at one side; A backlight unit formed under the liquid crystal panel; A cover bottom formed around the lower and side parts of the backlight unit; A PCB connected to the driver and formed above the cover bottom; A user connector formed on the upper side of the PCB; And And a cover shield formed to be spaced apart from the user connector by having a bent portion covering an upper portion of the user connector. The method of claim 1, And the bending part has a 'Z' shape connected to the cover shield on a vertical side through which the user connector passes. The method of claim 1, And the bending part has a '-' shape connected to the cover shield on a vertical side through which the user connector passes. The method of claim 1, The PCB is a liquid crystal display, characterized in that the data PCB.

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