KR102364474B1 - Touch lighting apparatus - Google Patents

Abstract

A touch lighting device according to an embodiment includes: a substrate having a light emitting region and a conductive region defined therein, and including a sensing electrode disposed in the conductive region; a light source disposed on the substrate and disposed in the light emission area; a conducting member disposed on the substrate and disposed on the conducting region; a light blocking member disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area; a substrate disposed on the light blocking member and including a light transmitting pattern area and a light blocking pattern area; and a conductive pattern disposed on the light-shielding pattern area on one surface of the substrate, wherein the light-transmitting pattern is disposed on the light emission area, and the conductive pattern extends from the first detection pattern and the detection pattern. and an extension connected to the conducting member.

Description

TOUCH LIGHTING APPARATUS

Embodiments relate to touch lighting devices.

Home appliances such as refrigerators, washing machines, or air conditioners may include a controller for controlling the operation of the home appliances.

The user may control various operations of the home appliance through such a control unit. For example, the user may operate the control unit of the home appliance by using a button unit that implements a click feeling.

Recently, a button has been deleted from the control unit and a touch control unit capable of implementing the control unit according to a user's touch operation is applied.

However, when the user touches the control unit, it is sometimes unclear whether the user has touched the control unit in the control unit, and thus there is a problem in that repeated touch is required.

Accordingly, when the user touches the control unit, when lighting is implemented in the control unit, the user can easily recognize whether the touch has been made. can be, there is a problem that visibility is lowered.

Therefore, there is a need for a touch lighting device having a new structure capable of solving the above problems.

An embodiment is to provide a touch lighting device capable of implementing touch and lighting at the same time and having improved luminance.

A touch lighting device according to an embodiment includes: a substrate having a light emitting region and a conductive region defined therein, and including a sensing electrode disposed in the conductive region; a light source disposed on the substrate and disposed in the light emission area; a conducting member disposed on the substrate and disposed on the conducting region; a light blocking member disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area; a substrate disposed on the light blocking member and including a light transmitting pattern area and a light blocking pattern area; and a conductive pattern disposed on the light-shielding pattern area on one surface of the substrate, wherein the light-transmitting pattern is disposed on the light emission area, and the conductive pattern extends from the first detection pattern and the detection pattern. and an extension connected to the conducting member.

A touch lighting device according to another embodiment includes: a substrate having a light emitting area and a conducting area defined thereon and including a sensing electrode disposed on the conducting area; a light source disposed on the substrate and disposed in the light emission area; a light blocking member disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area; a substrate disposed on the light blocking member and including a light transmitting pattern area and a light blocking pattern area; and a conductive pattern disposed on the light blocking pattern region on one surface of the substrate, wherein the substrate includes a first region and a second region extending from the first region by bending in the direction of the substrate, and the conductive pattern is a sensing pattern disposed on the first area; and an extension part connected to the sensing pattern and disposed on the second region, wherein the extension part is bent toward the substrate to be electrically connected to the sensing electrode.

A touch lighting device according to another embodiment includes: a substrate having a light emitting area and a conducting area defined thereon and including a sensing electrode disposed on the conducting area; a light source disposed on the substrate and disposed in the light emission area; a light blocking member disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area; a substrate disposed on the light blocking member and including a light transmitting pattern area and a light blocking pattern area; and a conductive pattern disposed on the light blocking pattern region on one surface of the substrate, wherein a conductive layer is disposed on an outer surface of the light blocking member, the conductive layer is connected to the sensing electrode, and the conductive pattern includes the conductive layer is connected with

The touch lighting device according to the embodiment may simultaneously implement touch and lighting in the icon area.

In detail, the sensing electrode for detecting a touch of the icon area is disposed so as not to overlap the pattern part of the icon, and the light source is disposed at a position that does not overlap or overlap the icon area, so that when the user touches the icon area, the icon area Touch action and lighting may be implemented.

In addition, since an opaque metal such as a metal may be used as the sensing electrode in addition to the transparent electrode, process efficiency may be improved.

In addition, since the sensing electrode and the touch electrode on the printed circuit board can be connected to each other by disposing the conductive layer on the light blocking member, a separate connecting member and the like can be omitted.

In addition, in the touch lighting device according to the embodiment, the sensing electrode and the light source are spaced apart by a certain distance, the sensing pattern is formed in the periphery of the light transmission pattern region of a separate substrate, and then the sensing pattern and the sensing electrode are electrically connected. , when the sensing electrode and the light source are disposed in adjacent areas on the same substrate. It is possible to prevent a touch malfunction from occurring due to the current applied to the light source being affected by the sensing electrode, and to reduce the interference between the sensing electrode and the light source while simultaneously recognizing a touch in the icon area.

In addition, by using different light sources for individual icons, the luminance of each icon can be maintained high and uniform, and interference between light sources in each icon is prevented, so that only the icon to be displayed can be recognized. .

1 is a diagram illustrating a top view of a touch lighting device according to an embodiment.
FIG. 2 is a diagram illustrating a perspective view of area A of FIG. 1 .
FIG. 3 is a cross-sectional view illustrating a region BB′ of FIG. 2 .
FIG. 4 is a view showing a cross-sectional view taken by cutting a region CC′ of FIG. 2 .
5 is a view showing another cross-sectional view taken by cutting a region BB′ of FIG. 2 .
6 is a diagram illustrating a perspective view of a region D of FIG. 1 .
FIG. 7 is a cross-sectional view illustrating a region EE′ of FIG. 6 .
FIG. 8 is a view showing another cross-sectional view taken by cutting the area EE′ of FIG. 6 .
FIG. 9 is a diagram illustrating another perspective view of area A of FIG. 1 .
FIG. 10 is a cross-sectional view illustrating a region FF′ of FIG. 9 .
11 to 13 are diagrams for explaining an application example of the touch lighting device according to the embodiment.

In the description of embodiments, each layer (film), region, pattern or structure is “on” or “under” the substrate, each layer (film), region, pad or patterns. The description of being formed in " includes all those formed directly or through another layer. The standards for the upper/above or lower/lower layers of each layer will be described with reference to the drawings.

In addition, when it is said that a certain part is "connected" with another part, it includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

In the drawings, the thickness or size of each layer (film), region, pattern, or structure may be changed for clarity and convenience of description, and thus does not fully reflect the actual size.

Hereinafter, a touch lighting device according to an embodiment will be described with reference to the drawings.

Referring to FIG. 1 , the touch lighting device according to the embodiment may include a cover substrate 100 and an icon area IA formed on the cover substrate.

The cover substrate 100 may be transparent. The cover substrate 100 may include glass or plastic. The cover substrate 100 may be disposed on top of various members such as a decoration member and a lighting member disposed under the cover substrate 100 .

The icon area IA may include a plurality of icon areas IA spaced apart from each other. The icon area IA may be a touch area. The icon area IA may be an illumination area. That is, the icon area IA may be an area from which light is emitted along with a touch.

In the plurality of icon areas IA, various operations according to a user's touch may be implemented. In detail, in the plurality of icon areas IA, when a user's touch is input, light is emitted from the icon area IA to generate a signal indicating that the user's touch is input, and a predetermined function is performed in the icon area IA. An operation according to may be performed.

2 to 4 , the touch lighting device according to the embodiment includes a substrate 200 , a light source 300 disposed on the substrate 200 , a conducting member 400 and a light blocking member 500 , and the light source It may include a decoration member 600 , a sensing electrode 710 , and a conductive pattern 720 disposed on the 300 .

The substrate 200 and the decoration member 600 may be disposed inside the outer frame 900 . That is, the outer frame 900 includes the substrate 200 , the light source 300 , the connection member 400 , the light blocking member 500 , the decor member 600 , the sensing electrode, and the conductive pattern. It may be a receiving member for receiving.

A light emission area LA and a conduction area CA may be defined in the substrate 200 . In detail, the substrate 200 may include the light emitting area LA, which is an area from which the light emitted from the light source is emitted, and a conductive area CA connecting the sensing electrodes.

The light emission area LA and the conduction area CA may be disposed adjacent to each other. The light emission area LA and the conduction area CA may be disposed in contact with each other. The light emission area LA and the conduction area CA may be disposed to be spaced apart from each other.

An area of the light emission area LA may be larger than an area of the conductive area CA.

At least one of the light emission area LA and the conductive area CA may be disposed to overlap the icon area IA. Alternatively, the light emission area LA may be formed to overlap the icon area IA, and the conduction area CA may be formed without overlapping the icon area IA.

The substrate 200 may be disposed under the cover substrate 100 . The substrate 200 may include a first base substrate 210 and an electrode 220 disposed on the first base substrate 210 .

For example, the first base substrate 210 may include plastic. For example, the first base substrate 210 may include polyimide (PI).

The electrode 220 may be disposed on the first base substrate 210 . The electrode 220 may include a conductive material. The electrode 220 may include a metal. The electrode 220 may include a plurality of electrode patterns. A plurality of electrode patterns may be formed on the first base substrate 210 to form a plurality of electrodes.

In detail, on the first base substrate 210 , various electrode patterns such as a terminal electrode pattern for electrically connecting the light source 300 and a sensing electrode pattern for recognizing a user's touch by being connected to the conducting member 400 are disposed. can

For example, a sensing electrode 710 may be disposed on the first base substrate 210 . The sensing electrode 710 may be driven in a self-cap method. That is, when the user touches the sensing electrode 710 , the capacitor value of the sensing electrode changes, and the user's touch can be recognized according to the change amount of the capacitor value. That is, the substrate 200 may include a sensing electrode 710 that senses a user's touch among the plurality of electrodes 220 and is connected to the driving chip.

For example, the substrate 200 may be a printed circuit board including a sensing electrode for recognizing a touch, but the embodiment is not limited thereto.

The light source 300 may be disposed on the substrate 200 . The light source 300 may be disposed in the light emission area LA of the substrate 200 .

The light source 300 may be disposed while being connected to the electrode of the substrate 200 . For example, the light source 300 may include a terminal part, and the terminal part and the terminal electrode pattern may be connected to each other.

For example, the light source 300 may include a light emitting diode (LED). The light source 300 may be disposed on an area of the substrate 200 overlapping the icon area IA. Alternatively, the light source 300 may be disposed on an area of the substrate 200 that does not overlap the icon area IA.

The light source 300 may emit light. For example, the light source 300 may emit light in the direction of the cover substrate 100 . The light source 300 may emit light from the light emission area LA of the substrate 200 toward the cover substrate 100 .

The light source 300 may emit light upward in a direction perpendicular to one surface of the substrate 200 . In detail, the light source 300 is disposed on the area of the substrate 200 overlapping the icon area IA, and may emit light in the direction of the cover substrate 100 .

Alternatively, the light source 300 may emit light laterally in a direction parallel to one surface of the substrate 200 . In detail, the light source 300 is disposed on an area of the substrate 200 that does not overlap the icon area IA, and includes a separate member such as a light guide plate and/or a reflective member that changes the movement of light upward. Light may be emitted in the direction of the cover substrate 100 by using the .

At least one light source 300 may be disposed on the substrate 200 . For example, one or a plurality of light sources may be disposed on the substrate 200 according to the size of the icon area IA.

The conducting member 400 may be disposed on the substrate 200 . The conducting member 400 may include an elastic material. For example, the conducting member 400 may include an elastic material such as polyurethane.

The conducting member 400 may be disposed to protrude from the upper surface of the substrate 200 . That is, the conducting member 400 may be disposed on the substrate 200 while having a constant height.

A conductive material may be disposed on the outer surface of the conducting member 400 . For example, mesh-shaped electrodes may be disposed on the upper surface, the side surface, and the lower surface of the conducting member 400 . Accordingly, the conducting member 400 may have conductivity.

The conducting member 400 may be disposed to be connected to the sensing electrode 710 . For example, a conductive layer may be disposed between the conducting member 400 and the sensing electrode 710 . In detail, a conductive adhesive layer including an anisotropic conductive film (ACF) or the like may be disposed between the conducting member 400 and the sensing electrode 710 , and the conducting member 400 and the sensing electrode 710 are electrically connected to each other. can be connected to

In addition, the conducting member 400 may be disposed in connection with the conductive pattern 720 to be described below. For example, a conductive layer may be disposed between the conducting member 400 and the conductive pattern 720 . In detail, a conductive adhesive layer including an anisotropic conductive film (ACF) or the like may be disposed between the conductive member 400 and the conductive pattern 720 , and the conductive member 400 and the conductive pattern 720 are electrically connected to each other. can be connected to

However, the embodiment is not limited thereto, and the conducting member 400 may be disposed in direct contact with the sensing electrode 710 and the conductive pattern 720 .

The conducting member 400 may connect the conductive pattern to be described below and the sensing electrode of the substrate 200 . That is, the conductive pattern and the sensing electrode of the substrate 200 may be electrically connected by the conducting member 400 .

The light blocking member 500 may be disposed on the substrate 200 . The light blocking member 500 may be disposed to surround at least one of the light emitting area LA and the conducting area CA. The light blocking member 500 may be disposed to surround at least one of the light source 300 and the conducting member 400 on the substrate 200 .

The light blocking member 500 may be formed separately from the outer frame 900 . That is, the light blocking member 500 may be disposed inside the outer frame 900 . Alternatively, the light blocking member 500 may be integrally formed with the outer frame 900 .

The light blocking member 500 may be disposed in direct or indirect contact with other members such as the conductive pattern 720 and the decoration layer 620 on the light blocking member 500 . For example, an adhesive layer 530 including a black PET tape is disposed between the light blocking member 500 and other members such as the conductive pattern 720 and the decoration layer 620 , and the light blocking member ( 500 , the conductive pattern 720 , and other members such as the decoration layer 620 may be adhered to each other through the adhesive layer 530 .

The light blocking member 500 may include a concave portion recessed from the light emitting area LA to the conducting area CA. Also, the conducting member 400 may be disposed in the concave portion of the light blocking member 500 . The concave portion may be formed in a circular shape such as a semicircle or a circle, or a polygonal shape such as a square or a triangle.

The light blocking member 500 may be disposed on the substrate 200 corresponding to each icon area. The light blocking member 500 may serve to prevent light emitted in the direction of each icon area from being incident on other icon areas. That is, the light emitted from the light source 300 by the light blocking member 500 may be emitted only in the direction of a specific icon area.

That is, a plurality of light blocking members disposed to surround at least one of a light source and/or a conducting member on each icon area may be disposed on the substrate 200 .

A reflective member may be further disposed on the inner surface of the light blocking member 500 . For example, a reflective member including a metal may be further disposed on an inner surface of the light blocking member 500 facing the light source 300 .

Accordingly, it is possible to reduce the amount of light that is incident on the side surface or the inner surface of the light blocking member and is lost to the outside, thereby improving light efficiency and luminance of light emitted to the icon area.

The light blocking member 500 may be disposed to surround only the light emitting area. The light blocking member 500 may be disposed to surround only the light source.

Alternatively, the light blocking member 500 may be disposed to surround the light emitting area and the conducting area. The light blocking member 500 may be disposed to surround the light source and the conducting member. For example, the light source and the conducting member for implementing the operation and illumination of one icon area may be disposed surrounded by one light blocking member. Alternatively, the light source and the conducting member for implementing the operation and illumination of one icon area may be disposed surrounded by each light blocking member. Also, each of the light blocking members may be disposed to contact each other or may be disposed to be spaced apart from each other.

The light blocking member may include plastic. For example, the light blocking member may include polycarbonate or an acrylic resin.

The light blocking member 500 may be opaque. For example, the light blocking member 500 may be formed of a color. For example, the light blocking member 500 may be formed in a black color.

The transmittance of the light blocking member 500 may be low. The transmittance of the light blocking member 500 may be about 1% or less. That is, the light blocking rate of the light blocking member 500 may be about 99% or more.

The decor member 600 may be disposed on the substrate 200 . In detail, the decor member 600 may be disposed on the light source 300 , the conducting member 400 , and the light blocking member 500 on the substrate 200 .

The decoration member 600 may include a substrate 610 and a decoration layer 620 on the substrate 610 . The decoration layer may be disposed under the substrate 610 . The decoration layer 620 may be disposed between the substrate 200 and the substrate 610 .

The substrate 610 may include a light transmission pattern area PA and a light blocking pattern area NPA. In detail, the substrate 610 may include the light transmission pattern area PA overlapping the icon area IA.

The light transmission pattern area PA may be formed in the shape of a logo and/or an icon, and the shape of the light transmission pattern area PA may be visually recognized from the outside by the light emitted from the bottom to the top. In detail, the shape of the light transmission pattern area PA may correspond to the shape of the icon area IA.

The decoration layer 620 may include a first decoration layer 621 and a second decoration layer 622 . In detail, the decoration layer 620 may include a first decoration layer 621 disposed on the light transmission pattern area PA and a second decoration layer 622 disposed on the light blocking pattern area NPA. there is.

The first decoration layer 621 may transmit light, and the second decoration layer 622 may not transmit light. In addition, the first decoration layer 621 and the second decoration layer 622 may be implemented in different colors. For example, the first decoration layer 621 may be implemented using colored ink, and the second decoration layer 622 may be implemented using black or white ink so that light is not transmitted.

In addition, both the first decoration layer 621 and the second decoration layer 622 may transmit light. The first decoration layer 621 and the second decoration layer 622 may be formed by making the light transmittance of the first decoration layer 621 relatively higher than that of the second decoration layer 622 . .

For example, the first decoration layer 621 does not use colored ink, but uses colored ink for the second decoration layer 622, or the first decoration layer 621 and the second decoration layer 622. The light transmittance of the first decoration layer 621 may be higher than the light transmittance of the second decoration layer 622 while using all colored inks.

The first decoration layer 621 and/or the second decoration layer 622 may include ink. The first decoration layer 621 and/or the second decoration layer 622 may include an ink composition including a pigment.

In addition, the first decoration layer 621 and/or the second decoration layer 622 may further include a scattering material. For example, the first decoration layer 621 and/or the second decoration layer 622 may include an ink composition including a pigment and a scattering material. That is, the ink composition may be a diffusion ink.

The ink composition may be formed by mixing the pigment and the scattering material. For example, the ink composition may be mixed by adding the pigment and the scattering material to a solvent containing alcohol or water. In addition, a separate dispersing agent may be further included to uniformly disperse the scattering material in the solvent.

The pigment may be added to implement a color in the ink composition. For example, the pigment may include pigments implementing various colors, such as blue, yellow, or red, depending on the color to be implemented in the light transmission pattern area PA and the light blocking pattern area NPA.

The scattering material may include diffusion beads. For example, the scattering material may include diffusion beads of at least one of silicon dioxide (SiO2) and titanium dioxide (TiO2).

Accordingly, the uniformity of light passing through the light transmission pattern area PA may be improved.

Accordingly, the light emitted from the light source 300 may pass through the first decoration layer 621 to emit the light in the direction of the icon area IA.

The conductive pattern 720 may be disposed on the decoration layer 620 . In detail, the conductive pattern 720 may be disposed between the decoration layer 620 and the substrate 200 .

The conductive pattern 720 may include a conductive material. For example, the conductive pattern 720 may include a metal. For example, the conductive pattern 720 may include chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), or molybdenum (Mo). It may include at least one metal among gold (Au), titanium (Ti), and alloys thereof. The conductive pattern 720 may be formed using a conductive paste or conductive ink containing the metal.

Alternatively, the conductive pattern 720 may include indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, or titanium oxide. (titanium oxide) may include a metal oxide.

Alternatively, the conductive pattern 720 may include nanowires, a photosensitive nanowire film, carbon nanotubes (CNT), graphene, a conductive polymer, or a mixture thereof.

Alternatively, the conductive pattern 720 may be formed in a mesh shape. In detail, the sensing electrode 700 may include a plurality of sub-electrodes, and the sub-electrodes may be disposed while crossing each other in a mesh shape.

In detail, the conductive pattern 720 may include a mesh line and a mesh opening between the mesh line by a plurality of sub-electrodes crossing each other in a mesh shape.

The line width of the mesh line may be about 0.1 μm to about 10 μm. A mesh line having a line width of less than about 0.1 μm may be impossible in a manufacturing process, and when it exceeds about 10 μm, the sensing electrode pattern may be visually recognized from the outside and visibility may be reduced. In detail, the line width of the mesh line may be about 1㎛ to about 5㎛. In more detail, the line width of the mesh line may be about 1.5 μm to about 3 μm.

In addition, the thickness of the mesh line may be about 100 nm to about 1000 nm. If the thickness of the mesh wire is less than about 100 nm, the electrode resistance may be increased and electrical properties may be deteriorated, and if it exceeds about 1000 nm, the overall thickness of the touch lighting device may be thickened, and process efficiency may be reduced. In detail, the thickness of the mesh line may be about 150 nm to about 500 nm. In more detail, the thickness of the mesh line may be about 180 nm to about 200 nm.

In addition, the mesh opening may be formed in various shapes. For example, the mesh opening may have various shapes such as a quadrangle, a diamond shape, a pentagonal shape, a hexagonal polygonal shape, or a circular shape. In addition, the mesh opening may be formed in a regular shape or a random shape.

The conductive pattern 720 may be disposed on an area that does not overlap the light transmission pattern area PA. The conductive pattern 720 may be disposed on an area that does not overlap the first decoration layer 621 . In detail, the conductive pattern 720 may be disposed on the light blocking pattern area NPA. In detail, the conductive pattern 720 may be disposed on the second decoration layer 622 . In detail, the conductive pattern 720 may be disposed only on the light blocking pattern area NPA. In detail, the conductive pattern 720 may be disposed only on the second decoration layer 622 .

The conductive pattern 720 may include a sensing pattern 721 and an extension 722 extending from the sensing pattern 721 . In detail, the conductive pattern 720 includes the sensing pattern 721 on the second decoration layer 622 corresponding to the light emitting region and the extension portion on the second decoration layer 622 corresponding to the conducting region. (722).

The sensing pattern 721 and the extension part 722 may be disposed to be connected to each other. The sensing pattern 721 and the extension 722 may be integrally formed.

The sensing pattern 721 may be disposed on an area that does not overlap the light transmission pattern area PA but overlaps the light blocking pattern area PA on an area corresponding to the light emission area.

For example, the sensing pattern 721 may be disposed to surround the light transmission pattern area PA forming the icon of the icon area.

Alternatively, the sensing pattern 721 may include a plurality of sensing patterns. The plurality of sensing patterns may surround the light-transmitting pattern area, may be disposed between the light-transmitting pattern areas, and may be connected to each other.

The extension 722 may be connected to the conducting member 400 .

In detail, the extension 722 disposed on the conductive area CA may be connected to the upper surface of the conductive member 400 . That is, the extension part 722 disposed on the conductive area CA may be disposed in contact with the upper surface of the conductive member 400 .

Accordingly, the conductive pattern 720 may be electrically connected to the sensing electrode of the substrate 200 by the conducting member 400 .

A translucent member 800 may be disposed on the decor member 600 . The translucent member 800 may be disposed between the decor member 600 and the cover substrate 100 .

The translucent member 800 may include a half-mirror film.

The translucent member 800 may include a second base substrate 810 and a metal layer 820 on the second base substrate 810 . The metal layer 820 may be disposed between the second base substrate 810 and the substrate 200 .

The translucent member 800 may be formed in a color. The translucent member 800 may transmit light. For example, the translucent member 800 may have a light transmittance of about 40% to about 50%.

The metal layer 820 may form a pattern layer. The external color of the translucent member 800 may be variously changed by the pattern layer.

Hereinafter, a touch lighting device according to another embodiment will be described with reference to FIG. 5 . In the description of the touch lighting device according to another embodiment, descriptions that are the same as or similar to those of the touch lighting device according to the embodiment described above will be omitted, and the same reference numerals will be given to the same components.

Referring to FIG. 5 , in the touch lighting device according to another embodiment, the base 610 supporting the decoration layer 620 may be omitted.

In detail, the decoration layer 620 may be disposed on the translucent member 800 . That is, the decoration layer 620 may be disposed on the metal layer 820 of the translucent member 800 . That is, the decoration layer 620 may be disposed in contact with the metal layer 820 .

Accordingly, the touch lighting device according to another embodiment may simplify the stacked structure of the touch lighting device. In addition, since a separate substrate supporting the decoration layer may be omitted, the overall thickness of the touch lighting device may be reduced. In addition, since a separate substrate supporting the decoration layer can be omitted, it is possible to prevent a decrease in refraction and transmittance of light according to the substrate, thereby improving the luminance of light emitted to the icon area.

Hereinafter, a touch lighting device according to another embodiment will be described with reference to FIGS. 6 to 8 . In the description of the touch lighting device according to another embodiment, descriptions of the same or similar descriptions as those of the touch lighting devices according to the above-described embodiment will be omitted, and the same reference numerals will be given to the same components.

6 and 8 , in the touch lighting device according to another embodiment, the conducting member 400 may be omitted.

In detail, the light source 300 may be disposed on the substrate 200 . In addition, the substrate 200 may include a sensing electrode 710 disposed to be spaced apart from the light source 300 .

The light source 300 may be disposed on the light emission area of the substrate 200 , and the sensing electrode 710 may be disposed on the conduction area CA of the substrate 200 .

The light blocking member 500 may be disposed to surround at least one of the light emitting area LA and the conducting area CA.

The decoration member 600 may include a substrate 610 and a decoration layer 620 . The substrate 610 may include a first region 1A and a second region 2A. In detail, the first area 1A may include a flat surface. Also, the second region 2A may be bent and extended from the first region 1A. In detail, the second region 2A may be bent and extended from the first region 1A toward the substrate 200 .

The decoration layer 620 may be disposed on at least one of the first area 1A and the second area 2A. For example, the decoration layer 620 is disposed only on the first area 1A, or the decoration layer 620 is disposed on both the first area 1A and the second area 2A. A conductive pattern 720 may be disposed under the decoration layer 620 .

The conductive pattern 720 may include a sensing pattern 721 and an extension 722 extending from the sensing pattern 721 .

In detail, the conductive pattern 720 may include the sensing pattern 721 disposed on the first area 1A and the extension part 722 disposed on the second area 2A.

The sensing pattern 721 and the extension part 722 may be disposed to be connected to each other. The sensing pattern 721 and the extension 722 may be integrally formed with each other.

As the second region 2A bends and extends in the direction of the substrate 200 from the first region 1A, the extension portion 722 on the second region 2A extends to the first region 1A. ) may be bent and extended from the sensing pattern 721 on the .

In detail, the extension part 722 may be bent and extended from the sensing pattern 721 in the direction of the substrate 200 . In detail, the extension part 722 may be disposed to extend from the sensing pattern 721 to the sensing electrode 710 of the substrate 200 .

A connector 750 may be disposed on the sensing electrode 710 . For example, the connector 750 may include a Zif connector.

The extension 722 extending from the sensing pattern 721 in the direction of the sensing electrode 710 of the substrate 200 may be connected to the sensing electrode 710 through the connector 750 . For example, a groove for accommodating the extension part 722 may be formed in the connector 750 , and the extension part 722 may be inserted into the groove formed in the connector 750 . In addition, in order to improve the coupling force of the extension part 722 , a separate reinforcing member may be further disposed in a connection region between the extension part 722 and the connector 750 . Alternatively, the connector 720 may include It may be disposed at an end of the extension 722 . The extension 722 extending from the sensing pattern 721 in the direction of the sensing electrode 710 of the substrate 200 may be connected to the sensing electrode 710 through the connector 750 . For example, a groove for accommodating the sensing electrode 710 may be formed in the connector 750 , and the sensing electrode 710 may be inserted into the groove formed in the connector 750 . In addition, in order to improve the coupling force of the sensing electrode 710 , a separate reinforcing member may be further disposed in a connection region between the sensing electrode 710 and the connector 750 .

Accordingly, the conductive pattern 720 and the sensing electrode 710 may be electrically connected by the connector 750 .

A protective layer 780 may be disposed on the conductive pattern 720 . In detail, a protective layer 780 may be disposed on the conductive pattern 720 disposed on the second decoration layer 622 .

In addition, the protective layer 780 is disposed only on the conductive pattern 720 disposed on the second decoration layer 622 , or the first decoration layer 621 and the second decoration layer 622 . It may be disposed on the conductive pattern 720 disposed thereon. That is, the protective layer 780 may be disposed on at least one of the first decoration layer 621 and the second decoration layer 622 .

That is, the passivation layer 780 is disposed only on the conductive pattern 720 at a position corresponding to the bent second area 1A, or the passivation layer 780 is formed on the flat first area ( Both the conductive pattern 720 corresponding to 1A) and the conductive pattern 720 at a position corresponding to the bent second region 1A may be disposed on the conductive pattern 720 . The protective layer 780 is the conductive pattern. (720) can be protected. In detail, the occurrence of cracks due to stress caused by bending of the conductive pattern 720 bent in the direction of the driving chip C of the substrate by the protective layer 780 may be reduced.

Hereinafter, a touch lighting device according to another embodiment will be described with reference to FIGS. 9 and 10 . In the description of the touch lighting device according to another embodiment, descriptions of the same or similar descriptions as those of the touch lighting devices according to the above-described embodiment will be omitted, and the same reference numerals will be given to the same components.

9 and 10 , in the touch lighting device according to another embodiment, the conducting member and the connecting member may be omitted.

9 and 10 , a conductive layer 550 may be disposed on an outer surface of the light blocking member 500 . In detail, a conductive layer 550 may be disposed on an upper surface and a side surface of the light blocking member 500 . The conductive layer 550 may extend to the upper surface of the first base substrate 210 and may be in contact with the sensing electrode 710 .

In addition, the conductive pattern 720 may be disposed to extend to a position corresponding to the upper surface of the light blocking member 500 . The conductive pattern 720 may be disposed on the upper surface of the light blocking member 500 . In detail, the conductive pattern 720 may be disposed in contact with the conductive layer 550 disposed on the upper surface of the light blocking member 500 .

That is, the conductive pattern 720 and the sensing electrode 710 may be electrically connected by the conductive layer 550 . That is, the lighting device according to another embodiment may electrically connect the conductive pattern and the sensing electrode without requiring a separate member connecting the conductive pattern and the sensing electrode or the conductive pattern and the driving chip. .

In addition, the conductive layer 550 may upwardly reflect the light incident toward the side of the light blocking member 500 among the light emitted from the light source 300 .

Accordingly, it is possible to reduce the amount of light that is incident on the side surface or the inner surface of the light blocking member and is lost to the outside, thereby improving light efficiency and luminance of light emitted to the icon area.

The touch lighting device according to the embodiments may simultaneously implement touch and lighting in the icon area.

In detail, the sensing electrode for detecting a touch of the icon area is disposed so as not to overlap the pattern portion of the icon, and the light source is disposed at a position that does not overlap or overlap the icon area, so that when the user touches the icon area, in the icon area Touch action and lighting may be implemented.

In addition, since an opaque metal such as a metal may be used as the sensing electrode in addition to the transparent electrode, process efficiency may be improved.

In addition, since the sensing electrode and the touch electrode on the printed circuit board can be connected to each other by disposing the conductive layer on the light blocking member, a separate connecting member and the like can be omitted.

In addition, in the touch lighting device according to the embodiment, the sensing electrode and the light source are spaced apart by a certain distance, the sensing pattern is formed in the periphery of the light transmission pattern area of a separate substrate, and then the sensing pattern and the sensing electrode are electrically connected. , when the sensing electrode and the light source are disposed in adjacent areas on the same substrate. It is possible to prevent a touch malfunction from occurring as the sensing electrode is affected by the current applied to the light source, and to reduce the interference between the sensing electrode and the light source while simultaneously recognizing a touch in the icon area.

In addition, by using different light sources for individual icons, the luminance of each icon can be maintained high and uniform, and interference between light sources in each icon is prevented, so that only the icon to be displayed can be recognized. .

Hereinafter, an application example of a home appliance to which the touch lighting device according to the above-described embodiment is applied will be described with reference to FIGS. 11 to 13 .

Referring to FIG. 11 , the touch lighting device according to the embodiment may be applied to a control unit of an air conditioner. In detail, the touch lighting device according to the embodiment may be applied to a control unit of an air conditioner, and may be applied to control wind strength, temperature, time, and the like.

12 , the touch lighting device according to the embodiment may be applied to a refrigerator. In detail, the touch lighting device according to the embodiment may be applied to a control unit of a refrigerator, and may be applied to control temperature, time, and the like.

Referring to FIG. 13 , the touch lighting device according to the embodiment may be applied to a washing machine. In detail, the touch lighting device according to the embodiment may be applied to a control unit of a washing machine to control time, functions, and the like.

Features, structures, effects, etc. described in the above-described embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

In addition, although the embodiments have been described above, these are merely examples and do not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are exemplified above in a range that does not depart from the essential characteristics of the present embodiment. It can be seen that various modifications and applications that have not been made are possible. For example, each component specifically shown in the embodiments may be implemented by modification. And differences related to these modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (13)

a substrate 200 having a light emission area LA and a conductive area CA defined thereon, and including a sensing electrode 710 disposed in the conductive area;
a light source 300 disposed on the substrate and disposed in the light emission area;
a conducting member 400 disposed on the substrate and disposed on the conducting region;
a light blocking member 500 disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area;
a substrate 610 disposed on the light blocking member and including a light transmitting pattern area PA and a light blocking pattern area NPA; and
and a conductive pattern 720 disposed on the light blocking pattern area on one surface of the substrate;
The sensing electrode and the light source are disposed to be spaced apart from each other on the same surface of the substrate,
The light transmission pattern is disposed on the light emission area,
The conductive pattern includes a sensing pattern 721 and an extension portion 722 extending from the sensing pattern and connected to the conducting member. a substrate 200 having a light emission area LA and a conductive area CA defined thereon and including a sensing electrode 710 disposed on the conductive area;
a light source 300 disposed on the substrate and disposed in the light emission area;
a light blocking member 500 disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area;
a substrate 610 disposed on the light blocking member and including a light transmitting pattern area and a light blocking pattern area; and
and a conductive pattern 720 disposed on the light blocking pattern area on one surface of the substrate;
The substrate includes a first region (1A) and a second region (2A) extending from the first region by bending in the direction of the substrate;
The sensing electrode and the light source are disposed to be spaced apart from each other on the same surface of the substrate,
The conductive pattern may include a sensing pattern 721 disposed on the first region; and an extension 722 connected to the sensing pattern and disposed on the second area,
The extended part is bent in the direction of the substrate to be electrically connected to the sensing electrode. a substrate 200 having a light emission area LA and a conductive area CA defined thereon and including a sensing electrode 710 disposed on the conductive area;
a light source 300 disposed on the substrate and disposed in the light emission area;
a light blocking member 500 disposed on the substrate and disposed to surround at least one of the light emitting area and the conducting area;
a substrate 610 disposed on the light blocking member and including a light transmitting pattern area and a light blocking pattern area; and
and a conductive pattern 720 disposed on the light blocking pattern area on one surface of the substrate;
The sensing electrode and the light source are disposed to be spaced apart from each other on the same surface of the substrate,
A conductive layer 550 is disposed on the outer surface of the light blocking member,
The conductive layer is connected to the sensing electrode,
The conductive pattern is a touch lighting device connected to the conductive layer. 4. The method according to any one of claims 1 to 3,
The conductive pattern overlaps the light-shielding pattern area and the light-transmitting pattern area does not overlap the touch lighting device. 4. The method according to any one of claims 1 to 3,
Further comprising a decoration layer 620 disposed on one surface of the substrate,
The decoration layer may include a first decoration layer disposed on the light transmission pattern area; and a second decoration layer disposed on the light blocking pattern area,
The conductive pattern is a touch lighting device disposed on the second decoration layer. 4. The method according to any one of claims 1 to 3,
A reflective member is further disposed on an inner surface of the light blocking member. 4. The method according to any one of claims 1 to 3,
The sensing electrode is a touch lighting device comprising a transparent electrode or an opaque electrode. The method of claim 1,
The conducting member is a touch lighting device including an elastic material. delete delete delete delete delete

Images