KR20110062263A - Display apparatus - Google Patents

Abstract

PURPOSE: A display device is provided to easily recognize a location and a function of the input area by differentiating reflection luminance/color of an input area with a different part. CONSTITUTION: A filter body has a display module at the front, is formed with an optical transparent material, and forms an image display area. A opaque layer(33) is includes in a rear side of the filter body and is covered to an edge of the image display area. An input area(R) is located in a part of the opaque layer and passes through the light to front side of the filter body. A sensing substrate locates in a rear side of a front-filter corresponding to the input area.

Description

Display apparatus

This embodiment relates to a display device.

In general, a display device is a device on which an image is displayed. Recently, a number of flat panel display apparatuses capable of being shaped as a two-dimensional display apparatus have been released.

The display device includes a display module for displaying an image and a front cover and a back cover provided at the front and rear of the display module to protect the display module.

The present invention is directed to a display apparatus that allows an input area to which an operation signal is input is easily recognized by a user.

The display device according to the present embodiment includes a display module; A filter body provided in front of the display module and formed of a light-transmissive material and having an image display area through which an image of the display module is transmitted; An opaque layer provided on a rear surface of the filter body and surrounding an edge of the image display area; And a front filter positioned at at least a portion of the opaque layer and including at least one input region through which light is transmitted from the rear of the filter body to the front of the filter body; And a sensing substrate positioned on a rear surface of the front filter corresponding to the input area.

According to the proposed embodiment, since the reflection luminance and the color of the input region are different from the reflection luminance and the color of the other portion, the user can easily recognize the position of the input region and the function of the input region. .

In addition, in the production of the front panel of the display device, by having a predetermined size of the reflected brightness and / or a predetermined color of the sensing unit of the sensing substrate in a state where a separate color deformation member is not provided, the input area is recognized by the user. Productivity is improved and manufacturing cost is reduced.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to such embodiments, and the spirit of the present invention may be proposed differently by the addition, change, deletion, etc. of the components constituting the embodiments, but this also applies to the spirit of the present invention. It is included.

1 is a display device according to an embodiment of the present invention;

2 is an exploded view of the display device of FIG. 1.

1 and 2, the display device 1 according to the present embodiment is provided in front of the display module 60 and the display module 60 to output an image, and protects the display module 60. The front filter 30 to allow the electromagnetic wave emitted from the display module 60 to be emitted to the outside at a predetermined level or less, the filter supporter 50 surrounded by the outside of the front filter 30, and the display The front cover 10 and the back cover 20 which surround each of the front edge and the back of the module 60 are included.

In more detail, the front cover 10 and the back cover 20 form the exterior of the display device 1, and are provided at the front and the rear of the display module 60, respectively, to protect the display module 60.

In addition, the front cover 10 includes a frame 11 forming an edge at the front of the display device 1, an opening 12 surrounding the frame 11, and an opening 12 at which the front panel 30 is positioned. do.

The display module 60 displays an image according to an external signal. The display module 60 is, for example, a liquid crystal display module (LCD module), a plasma display panel module (PDP module), a light emitting diode module (LED module) ) Or a flat panel display module such as an organic light emitting diode module (OLED module).

Meanwhile, a front filter 30 is provided at the front of the display module 60 to shield electromagnetic waves emitted from the display module 60 and to protect the image display panel of the display module 60. The front filter 30 may be supported by the front cover 10 by the filter supporter 50, and is formed of a light transmissive material so that the image displayed on the rear display module 60 is transmitted to the front.

The filter supporter 50 may be formed of, for example, a plurality of metal frames, one side of which is fixed to the front cover 10, and the other side of the filter supporter 50 is in contact with at least a portion of the front filter 30. Support 30 against the front cover 10. In addition, the filter supporter 50 may be grounded to the ground region R1 (see FIG. 5) formed on the rear surface of the front filter 30 to form an electromagnetic shielding space for the display module 60.

In the present exemplary embodiment, the front cover 10 and the back cover 20 form the appearance of the display device 1, but the front cover 10 is not provided and at least one of the edges of the front filter 10 is provided. It will also be possible to configure a state in which a part is opened, that is, the front filter 30 itself forms the front appearance of the display device 1.

Hereinafter, the configuration of the front filter 30 will be described in detail.

3 is a rear view of the front filter according to an exemplary embodiment of the present invention, and FIG. 4 is an enlarged view of portion A of FIG. 3. 5 is a cross-sectional view of the display device cut along the B-B diagram of FIG. 4.

First, referring to FIGS. 3 and 5, the front filter 30 forms an outer shape of the front filter 30 and is formed of a light transmissive material and a back surface of the filter body 31, that is, the display module. The electromagnetic shielding layer 32 provided on one surface facing the 60, the opaque layer 33 provided on the back of the electromagnetic shielding layer 32, and the rear of the electromagnetic shielding layer 32 and the opaque layer 33. It includes a back film layer 34 provided to. In addition, an adhesive fixing layer for adhesively fixing the front film layer 36 and the front film layer 36 to the front filter 30 to prevent scratching and diffuse reflection of the filter body 31 on the front surface of the filter body 31. 361 may be further provided.

Although the thicknesses of the electromagnetic shielding layer 32 and the opaque layer 33 shown in FIG. 5 are substantially smaller than those of the filter body 31, the thicknesses of the electromagnetic shielding layer 32 and the opaque layer 33 are substantially exaggerated to facilitate understanding. 5 is shown.

In more detail, the filter body 31 is formed in a plate shape, for example, may be formed of a ceramic material or resin material such as tempered glass of a light transmissive material through which an image can be transmitted.

In addition, the rear surface of the filter body 31 is provided with an electromagnetic shielding layer 32 formed with a conductive material in order to shield electromagnetic waves emitted from the display module 60 toward the front filter 30.

The electromagnetic wave shielding layer 32 may be formed by alternately stacking a transparent electrode layer such as indium tin oxide (ITO) and a metal thin film layer such as silver. Therefore, the electromagnetic shielding layer 14 is formed to a value of a predetermined resistance or less, so that the electromagnetic wave incident on the electromagnetic shielding layer 32 is grounded through the electromagnetic shielding layer 14 and the filter supporter 50 electrically connected thereto. I can send it to. In addition, the electromagnetic shielding layer 32 may be provided as a transparent layer through which an image may be transmitted as the transparent electrode layer and the metal thin film layer are alternately stacked with a small thickness.

The transparent electrode side or the metal thin film layer of the electromagnetic wave shielding layer 32 may be deposited on a rear surface of the filter body 31 by a sputtering process, for example, to a predetermined thickness.

In the present embodiment, the electromagnetic shielding layer 32 is described as a configuration in which a transparent electrode layer or a metal thin film layer is formed by sputtering fixing by a sputtering process, but a plurality of fine conductors are formed in a mesh shape where they cross each other. It would also be possible.

Meanwhile, an image display area 311 in which an image of the display module 60 positioned behind the front filter 30 is displayed is formed at the center of the filter body 31, and an image display is formed at the rear of the front filter 30. An opaque part 33 surrounded by an edge of the image display area 311 is included to distinguish the area 311.

The opaque part 33 may be formed on the rear surface of the filter body 31 in an opaque color such as black, for example, and is provided with at least a portion of the electromagnetic shielding layer 32 overlapping with each other.

On the other hand, the shielding area S is formed in a region of a predetermined width where the opaque portion 33 is formed. In addition, a filter is provided in a portion where the opaque portion 33 and the electromagnetic wave shielding layer 32 overlap each other in the shielding area S, that is, at least a portion of the electromagnetic shielding layer 32 is provided behind the opaque portion 33. A ground region E through which the supporter 50 is grounded is formed.

Accordingly, the filter supporter 50, which is grounded to the internal structure of the display apparatus 1, for example, the ground region E, is formed by the shielding region R2 having a predetermined width d2 in which the opaque portion 33 is formed. Viewing from the outside can be prevented.

In addition, a rear film layer on the rear side of the electromagnetic shielding layer 32 includes a plurality of functional layers that protect the electromagnetic shielding layer 32 and adjust saturation and brightness of an image displayed on the display module 60 ( 34).

Meanwhile, the display apparatus 1 according to the present exemplary embodiment further includes an input area R and an operation signal sensing board 40 for receiving an operation signal from a user.

3 and 4, the input area R may be provided in plural and located at least a portion of the opaque layer 33, with respect to the front of the filter body 31 at the rear of the filter body 31. At least a portion of the opaque layer 33 may be formed to penetrate in the front-rear direction so that light may be transmitted.

That is, the input region R is provided in a portion of the region in which the opaque layer 33 is formed, and the opaque material constituting the opaque layer 33 is printed and formed only in the region except the region in which the input region R is formed. The opaque material constituting the opaque layer 33 is not formed in the region where the input region R is formed, whereby the input region R is formed.

In this case, the input area R is displayed as, for example, a mark or a symbol, so that which input area R of the plurality of input areas R is an input area R to which an operation signal intended by the user is input. Let the user know.

In the present embodiment, for example, the input region R is provided as the first to fifth input regions R1 to R5, and the first input region R1 is formed to indicate a letter of "Menu". In the case of the second input area R2 and the third input area R3, an arrow-shaped mark for increasing or decreasing the size of the voice output is formed, respectively, and the fourth input area R4 and the fifth input area R5 are respectively formed. In this case, an arrow-shaped emblem is used to change the input channel signal.

In addition, the input area R may further include at least one separate display area for allowing a user to recognize a type of an operation signal input to the second to fifth input areas R2 to R5. In the present exemplary embodiment, the display areas may include letters “Vol” and “CH” provided between the second and third input areas R2 and R3 and the fourth and fifth input areas R4 and R5. Can be formed.

In the process of inputting the manipulation signal to the display apparatus 1, the user may, for example, input at least one of the first to fifth input regions R1 to R2 on the front of the front panel 30. By contacting at least a part of the body with respect to (R), the operation signal can be input.

Then, in a state where at least a part of the user's body is in contact with any one input region R, the sensing substrate 40 provided at the rear side of the front panel 30 may input any one of the plurality of input regions R. It is determined whether the operation signal corresponding to the body contact is input to the area R.

Hereinafter, the configuration of the sensing substrate 40 will be described in detail.

6 is a view showing a sensing substrate of the present invention.

5 and 6, the sensing substrate 40 according to the present exemplary embodiment is fixed to the rear side of the region where the input region R is formed in the opaque layer 33, and the substrate body 41 and the sensing unit. 42 and the conductor part 43 are included.

In more detail, the sensing unit 42 and the conducting unit 43 are mounted on the substrate body 41, and the substrate body 41 is formed of, for example, a PCB substrate formed in a plate shape having a certain strength or a thinner thickness than the PCB substrate. Formed and may be provided as a flexible substrate in the form of a film having a certain size of elasticity.

Meanwhile, the sensing unit 42 according to the present exemplary embodiment may be provided with first to fifth sensing units 421 to 425 mounted on the front surface of the substrate body 41, and each of the first to fifth sensing units may be provided. The 421 to 425 are located behind the first to fifth input regions R1 to R5, respectively, and are respectively input to one or more input regions R of the first to fifth input regions R1 to R5. Detect the operation signal.

For example, the first to fifth sensing units 421 to 424 may be provided as a constant voltage type touch sensor that detects a change in voltage generated according to the contact when a part of the user's body contacts the input area R. FIG. Can be.

In addition, the first to fifth sensing units 421 to 425 may be formed in a shape in which conductive wires are wound in spirals, and the first to fifth sensing units 421 to 425 may improve the sensitivity of voltage change detection. Metallic materials such as silver (Ag) may be contained.

In this case, as the content of the metallic material increases, the sensitivity of the total change of the first to fifth sensing units 421 to 425 is increased, and the first to the first to indicate the relative illuminance of the light reflected by the incident illumination. Reflective luminance of the fifth sensing units 421 to 425 is also increased.

Meanwhile, at least a portion of the first to fifth sensing units 421 to 425 may include the first to fifth input regions R1 to R5 formed through the opaque layer 33 so that light passes through the panel body 31. Through the front panel 31 is exposed to the front.

That is, at least some of the first to fifth sensing units 421 to 425 are exposed to the front of the front panel 31 through the first to fifth input regions R1 to R5.

In this case, the reflected luminance of the first to fifth sensing units 421 to 425 is different from the reflected luminance of the opaque layer 33 and the frame 11 formed around the first to fifth input regions R1 to R5. It is formed to have a value.

For example, when the reflection luminance of barium sulfate (BaSO 4) is set to 100 and the reflection luminance of a blackbody in which light reflection does not occur is set to 0 in reflection luminance measurement, the first to fifth detections are performed. The reflection luminance of the sections 421 to 425 is set in the range of 30 to 80.

In this case, the reflection luminance of the first to fifth sensing units 421 to 425 and the reflection luminance of the opaque layer 33 may be at least greater than at least 0.5% from the reflection luminance of the opaque layer 33 and the frame 11. Is formed.

In the display device 1 according to the present exemplary embodiment, the reflection luminance of the first to fifth sensing units 421 to 425 is greater than the reflection luminance of the opaque layer 33 and the frame 11.

Therefore, the first to fifth sensing regions 421 to 425 exposed to the outside through the first to fifth input regions R1 to R5 and the second reflect luminance different from those of the surrounding opaque layer 33 and the frame 11. And / or formed in a different color, the user can easily distinguish the first to fifth input region (R1 ~ R5) from the opaque layer 33 and the frame 11 of the surrounding.

As described above, when the front cover 10 is not provided in the display apparatus 1, the first to fifth input regions R1 to R5 and the first to fifth sensing units 421 to 425 are provided. Can be formed with a different luminance and / or color than the surrounding opaque layer 33.

Hereinafter, a configuration in which the first to fifth sensing units 421 to 425 are formed in a different color from the surrounding opaque layer 33 and the frame 11 will be described in detail.

7 is a diagram illustrating color distribution of a sensing unit according to an exemplary embodiment of the present invention in a standard colorimetric system.

Referring to FIG. 7, the opaque layer 33 of the display device 1 according to the present exemplary embodiment may be formed by printing or depositing a black opaque material on the back surface of the panel body 31.

In addition, the first to fifth sensing units 421 to 425 may be formed in a different color from the opaque layer 33, and the colors of the first to fifth sensing units 421 to 425 are among colors within a predetermined color range. It may be formed in any one color.

More specifically, the a * and b * axes are shown intersected in the standard colorimetric system of FIG. 7, with the color at the origin O where the a * and b * axes intersect to reflect the different reflected luminance of the opaque layer 33. Having achromatic color.

In the standard colorimetric system, the red tendency increases from the origin O in the positive direction of the a * axis, and the green tendency increases in the negative direction. In addition, the yellow tendency becomes stronger toward the positive direction of the b * axis at the origin O, and the blue tendency becomes stronger toward the negative direction.

In this case, the a * axis may be referred to as a red-green axis, and the b * axis may be referred to as a yellow-blue axis.

The color forming range C of the first to fifth sensing units 421 to 425 according to the present embodiment is symmetrical about the origin O in the positive and negative directions of the a * axis. A first distance a1 and a second point a2 spaced apart from each other, and a third spaced distance from the origin O to be symmetrical in the positive and negative directions of the b * axis It is formed in the form of a closed curve having a point b1 and a fourth point b2.

That is, the colors of the first to fifth sensing units 421 to 425 may include a closed curve connecting the first to fourth points a1, a2, b 1, and b2, and the color forming range including the inside of the closed curve ( C) is formed in a color corresponding to any one position.

At this time, the width of the color forming range (C) formed on the b * axis is formed larger than the width of the color forming range (C) formed on the a * axis. That is, the range corresponding to the yellow and blue axes in the color formation range C is larger than the range corresponding to the red and green axes.

According to the proposed embodiment, since the reflection luminance and the color of the input region are different from the reflection luminance and the color of the other portion, the user can easily recognize the position of the input region and the function of the input region. .

In addition, in the production of the front panel of the display device, by having a predetermined size of the reflected brightness and / or a predetermined color of the sensing unit of the sensing substrate in a state where a separate color deformation member is not provided, the input area is recognized by the user. Productivity is improved and manufacturing cost is reduced.

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

FIG. 2 is an exploded view of the display device of FIG. 1. FIG.

3 is a plan view of the front filter according to the embodiment of the present invention.

4 is an enlarged view of a portion A of FIG. 3.

5 is a cross-sectional view of the display device cut along the B-B diagram of FIG.

6 shows a sensing substrate of the invention.

7 is a view showing the color distribution of the detection unit according to an embodiment of the present invention in a standard colorimeter.

Claims (11)

Display module; A filter body provided in front of the display module and formed of a light-transmissive material and having an image display area through which an image of the display module is transmitted; An opaque layer provided on a rear surface of the filter body and surrounding an edge of the image display area; And a front filter positioned at at least a portion of the opaque layer and including at least one input region through which light is transmitted from the rear of the filter body to the front of the filter body; And And a sensing substrate positioned on a rear surface of the front filter corresponding to the input area. The method of claim 1, The input sensing substrate includes at least one sensing unit corresponding to at least one input area, And at least one sensing unit corresponding to any one of the input regions is located behind the corresponding input region. The method of claim 2, And the sensing unit is formed in a different color from the opaque shielding layer. The method of claim 3, wherein The color of the detection unit is formed of any one of the colors included in the color forming range is formed in a region of a predetermined size around the origin in the standard color table, And a width corresponding to a yellow-blue axis of the color forming range is larger than a width corresponding to a red-green axis. The method of claim 2, The display brightness of the sensing unit is characterized in that formed differently from the reflected brightness of the opaque shielding layer. The method of claim 5, And a reflection luminance of the sensing unit is greater than that of the opaque shielding layer. The method of claim 5, And the reflection luminance of the sensing unit is formed to have a difference greater than at least 0.5% from the reflection luminance of the opaque shielding layer. The method of claim 2, And the sensing unit detects a voltage change according to the contact when the user makes contact with at least a part of a body in a predetermined area corresponding to an input area of the front surface of the front filter. The method of claim 1, And a filter supporter supporting the front filter and grounded to at least a portion of the front filter. The front filter is formed of a conductive material, the display device further comprises an electromagnetic shielding layer provided on the back of the filter body to contact the filter supporter. The method of claim 8, The display luminance of the detector is formed to have a difference greater than at least 0.5% from the reflection luminance of the opaque shielding layer. A ground region in which at least a portion of the electromagnetic shielding layer is exposed to the rear of the front filter so that the filter supporter is grounded; And And a shielding area formed in an area in which the opaque layer is provided to prevent an inside from being viewed outside through the filter body. 11. The method of claim 10, At least a portion of the ground area and at least a portion of the shielding area overlap each other.

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