Display device

Abstract

To provide a display device with a cover and knob.SOLUTION: A display device presented herein comprises a display panel, a cover provided on a front surface of the display panel, an adhesive member provided in a concave groove formed on a front surface of the cover, and a knob coupled to the concave groove via the adhesive member, where the concave groove has a ring shape.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a display device. [Background technology]

[0002] The display device may include an organic light emitting display device having organic light emitting diodes (OLEDs), an inorganic light emitting display device having inorganic light emitting diodes (LEDs), and a liquid crystal display device.

[0003] For example, a light emitting display device displays an image using self-emitting elements, so that a separate light source, for example, a backlight unit, is not required, and the display device can be thin and configured in various shapes. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides a display device that uses a ring-shaped groove formed in a cover that covers a display panel to support a knob while guiding the knob to a preset position.

[0005] The present invention provides a display device including a cover and a knob that is structurally improved for use with both flat and curved displays.

[0006] The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] A display device according to an embodiment of the present invention includes a display panel, a cover disposed on a front surface of the display panel, an adhesive member disposed in a groove recessed in the front surface of the cover, and a knob coupled to the groove via the adhesive member, the groove being formed in a ring shape. [Effects of the Invention]

[0008] According to the present invention, by utilizing a ring-shaped groove formed on the surface of the cover and a knob that is coupled to the groove, the knob can be positioned at a predetermined position while preventing the knob from falling off.

[0009] The present invention provides a ring-shaped groove formed in a cover and a knob that fits into the groove, allowing the cover to be used for both flat and curved display devices. This allows the knob to be shared, enabling low-power operation in the production process and reducing production energy.

[0010] According to the present invention, the groove and the knob corresponding to the groove are structurally improved so that they can be used in a curved display device with at least two curvatures.

[0011] The various advantageous and beneficial effects of the present invention are not limited to those described above, and other effects not mentioned will become apparent to those skilled in the art from the following description. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view showing a display device according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded perspective view showing a display device according to an embodiment of the present invention. [Figure 3] FIG. 3 is a bottom perspective view showing a display device according to an embodiment of the present invention. [Figure 4] FIG. 4 is a cross-sectional view showing the arrangement of a display panel, a cover, and a knob of a display device according to an embodiment of the present invention. [Figure 5]FIG. 5 is a block diagram schematically showing the configuration of a display device according to an embodiment of the present invention. [Figure 6] FIG. 6 is a diagram schematically showing a cross-sectional structure of a display panel arranged in a display device according to an embodiment of the present invention. [Figure 7] FIG. 7 is a diagram schematically illustrating a cross-sectional structure of a groove in a cover disposed in a display device according to an embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing an image displayed in area A of FIG. [Figure 9] FIG. 9 is a perspective view showing a knob disposed on a display device according to an embodiment of the present invention. [Figure 10] FIG. 10 is a cross-sectional view showing a knob disposed on a display device according to an embodiment of the present invention. [Figure 11] FIG. 11 is a diagram showing the coupling relationship between the key groove of the cover and the key of the knob arranged in the display device according to the embodiment of the present invention. [Figure 12] FIG. 12 is a diagram showing an example of a centering rib of a knob disposed on a display device according to an embodiment of the present invention. [Figure 13] FIG. 13 is a diagram showing another embodiment of the centering rib of the knob arranged on the display device according to the embodiment of the present invention. [Figure 14] FIG. 14 is a perspective view showing a display device according to another embodiment of the present invention. [Figure 15] FIG. 15 is a cross-sectional view showing a display device according to another embodiment of the present invention. [Figure 16] FIG. 16 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 17] FIG. 17 is a perspective view showing a display device according to still another embodiment of the present invention. [Figure 18] FIG. 18 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 19] FIG. 19 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 20]FIG. 20 is a perspective view showing a display device according to still another embodiment of the present invention. [Figure 21] FIG. 21 is a diagram showing a cover having at least two curvatures in a display device according to yet another embodiment of the present invention. [Figure 22] FIG. 22 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 23] FIG. 23 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 24] FIG. 24 is a perspective view showing a display device according to still another embodiment of the present invention. [Figure 25] FIG. 25 is a diagram showing a cover having at least two curvatures in a display device according to yet another embodiment of the present invention. [Figure 26] FIG. 26 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 27] FIG. 27 is a cross-sectional view showing a display device according to still another embodiment of the present invention. [Figure 28] FIG. 28 is a diagram showing an example of use of a display device according to an embodiment of the present invention, in which the display device is provided inside a vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0013] The advantages and features of the invention disclosed herein, as well as the methods for achieving them, will become more apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but may be configured in various separate forms. These embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully teach the scope of the invention to those skilled in the art. The present invention is defined only by the scope of the claims.

[0014] In describing the present invention, if a detailed description of related publicly known techniques is deemed to obscure the gist of the present invention, the detailed description will be omitted.

[0015] When the terms "comprise," "have," "include," "have," "have," "consist of," etc. are used in this specification, other parts may be added unless "only" or "only" is used. When an element is expressed in the singular, it may be construed as plural unless otherwise expressly stated.

[0016] When describing the positional relationship and connection between two elements, such as "on top of," "on top of," "below," "to the side of," "connect or couple," "crossing," etc., one or more other elements may be interposed between those elements, unless there is a reference such as "immediately" or "directly."

[0017] When describing a temporal sequence using expressions such as "after", "followed by", "next to", or "before", the terms "immediately" or "directly" are not used, and therefore the sequence may be discontinuous on the timeline.

[0018] Although terms such as "first" and "second" may be used to distinguish between components, the functions and structures of these components are not limited by the ordinal numbers or names of the components.

[0019] The following embodiments can be partially or entirely combined or combined with each other, and various technical interlocking and driving mechanisms are possible. Each embodiment can be implemented independently of the other, or can be implemented together in a linked relationship.

[0020] Terms (including technical and scientific terms) used in the examples of this specification may be interpreted as meanings that are generally understandable to a person of ordinary skill in the art to which the invention of this specification belongs, unless otherwise clearly and specifically defined. Commonly used terms, such as dictionary-defined terms, should be interpreted in light of the contextual meaning of the relevant art.

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] A display device according to an embodiment of the present invention can be used as a vehicle display device, and a controller such as a knob can be used to operate the display device.

[0023] Such knobs are attached to the cover on the display panel using adhesive tape, which makes it difficult to align the knobs to a predetermined position, and also makes it possible for the knobs to come off the cover that covers the display panel due to external forces acting on the knobs.

[0024] Therefore, there is a need for a display device with an improved structure that can guide the knob to a preset position while preventing the knob from falling off due to external force.

[0025] The display device according to an embodiment of the present invention uses a ring-shaped groove recessed in the cover and a knob coupled to the groove to position the knob at a predetermined position and prevent the knob from coming off due to external force. As a result, the display device according to an embodiment of the present invention improves durability, thereby improving the lifespan of the display device and reducing greenhouse gas emissions by reducing production energy.

[0026] A display device according to an embodiment of the present invention provides a groove and knob coupling structure that can be used in both flat panel display devices and curved display devices, thereby improving productivity of display devices.

[0027] FIG. 1 is a perspective view showing a display device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a display device according to an embodiment of the present invention. FIG. 3 is a bottom perspective view showing a display device according to an embodiment of the present invention. FIG. 4 is a cross-sectional view showing the arrangement of a display panel, a cover, and a knob of a display device according to an embodiment of the present invention. The flat panel display shown in FIGS. 1 and 2 may be referred to as a display device according to a first embodiment.

[0028] 1 to 4, a display device 1 according to an embodiment of the present invention may include a display panel 100, a cover 200 disposed on the front surface of the display panel 100, an adhesive member 300 disposed in a groove 210 recessed in the front surface of the cover 200, and a controller such as a knob 400 coupled to the groove 210 via the adhesive member 300. For example, the groove 210 may be formed in a ring shape having a predetermined depth and including an opening. For example, a surface of the display panel 100 on which an input image is displayed may be referred to as the front surface of the display panel 100, and the surface opposite the front surface may be referred to as the rear surface. Also, in FIGS. 1 to 3, the X-axis direction may refer to a width direction or horizontal direction, the Y-axis direction may refer to a length direction or vertical direction, and the Z-axis direction may refer to a top-bottom direction or thickness direction. The X-axis direction, the Y-axis direction, and the Z-axis direction may be perpendicular to each other or may be non-perpendicular to each other and may represent different directions. Therefore, each of the X-axis direction, the Y-axis direction, and the Z-axis direction may be described as one of a first direction, a second direction, and a third direction, and a surface extending in the X-axis direction and the Y-axis direction may refer to a horizontal surface.

[0029] Furthermore, the display device 1 according to an embodiment of the present invention may include a substrate 500 disposed on the rear surface of the display panel 100 , and at least one flexible film 600 connecting the display panel 100 and the substrate 500 .

[0030] The display panel 100 can display an input image. The display panel 100 can be formed in a plate shape having a predetermined thickness and can include a front surface on which an image is displayed and a rear surface opposite the front surface.

[0031] In addition, the display panel 100 may include a pad portion to which the flexible film 600 is electrically connected, so that one side of the flexible film 600 may be bonded to the pad portion of the display panel 100 via an anisotropic conductive film (ACF).

[0032] FIG. 5 is a block diagram schematically showing the configuration of a display device according to an embodiment of the present invention.

[0033] Referring to FIG. 5, the display device 1 includes a display panel 100 in which a plurality of pixels are arranged in a display area AA, and a drive circuit for driving the pixels.

[0034] The display panel 100 may be a rectangular panel having a width in the X-axis direction, a length in the Y-axis direction, and a thickness in the Z-axis direction. Each pixel includes a plurality of sub-pixels SP having different colors. The driving circuit includes a data driver DD, a gate driver GD, and a timing controller TC that controls the gate driver GD and the data driver DD. In the display panel 100, a display area AA on which an input image is displayed may be a screen visible from the front of the display panel 100. The width and length of the display panel 100 may be set to various design values ​​depending on the application field of the display device.

[0035] An input image is displayed on sub-pixels SP arranged in the display area AA of the display panel 100. For example, each of the sub-pixels SP includes a light-emitting element and a pixel circuit that drives the light-emitting element. The light-emitting element may be an OLED (Organic Light Emitting Diode), an LED (Light Emitting Diode), or a micro LED (Micro Light Emitting Diode).

[0036] A plurality of scan lines SL and a plurality of data lines DL are arranged to intersect with each other on the display panel 100. Each of the subpixels SP is connected to the scan lines SL and the data lines DL. A power supply line, not shown in FIG. 5, may be connected to each of the subpixels SP. In the display panel 100, a non-display area NA may be arranged outside the display area AA.

[0037] The gate driver GD supplies scan signals to the scan lines SL in response to gate control signals provided by the timing controller TC. The gate driver GD may be disposed in the non-display area NA of the display panel 100 as shown in Fig. 5. Alternatively, the gate driver GD may be disposed within the display area AA.

[0038] The data driver DD converts the image data received from the timing controller TC into a reference compensation voltage in response to a data control signal provided from the timing controller TC, and outputs the data voltage. The data voltage output from the data driver DD is supplied to the data line DL.

[0039] The timing controller TC aligns externally input video data and supplies it to the data driver DD. The timing controller TC can generate gate control signals and data control signals based on timing signals synchronized with the input video signal, such as a dot clock signal, a data enable signal, and horizontal and vertical synchronization signals. The timing controller TC supplies the gate control signals to the gate driver GD and the data control signals to the data driver DD, thereby controlling the operation timing of the gate driver GD and the data driver DD.

[0040] Link lines and pad electrodes for transmitting signals to the subpixels SP in the display area AA may be arranged in the non-display area NA, and one or more of a gate driver IC in which a gate driver GD circuit is integrated and a data driver IC in which a data driver DD circuit is integrated may be arranged in the non-display area NA.

[0041] Drivers such as the gate driver GD, the data driver DD, and the timing controller TC may be connected to the display panel 100 in various ways. For example, the gate driver GD may be arranged in the non-display area NA in a GIP (Gate In Panel) manner, or may be arranged between the sub-pixels SP in the display area AA in a GIA (Gate In Active Area) manner. For example, the data driver DD and the timing controller TC may be formed on a separate flexible film and a printed circuit board (PCB), and the flexible film and the PCB may be bonded to pad electrodes formed in the non-display area NA of the display panel 100 to electrically connect the data driver DD and the timing controller TC to the display panel 100.

[0042] FIG. 6 is a cross-sectional view schematically showing the cross-sectional structure of a display area of ​​a display device according to an embodiment of the present invention.

[0043] 6, the display panel 100 may include a circuit layer 120 disposed on a panel substrate 110 and a light emitting element layer 130 disposed on the circuit layer 120. Furthermore, the display panel 100 may include an encapsulation layer 140 disposed on the light emitting element layer 130 and a touch sensor layer 150 formed on the encapsulation layer 140.

[0044] The panel substrate 110 may be made of an insulating material or a flexible material, such as glass, metal, or plastic.

[0045] The circuit layer 120 may include pixel circuits connected to wiring such as data lines, gate lines, and power lines, gate drivers connected to the gate lines, etc. The wiring and circuit elements of the circuit layer 120 may include a plurality of insulating layers, two or more metal layers separated by insulating layers, and an active layer including a semiconductor material.

[0046] The light-emitting element layer 130 may include light-emitting elements driven by pixel circuits. The light-emitting elements may include red, green, and blue light-emitting elements. In another embodiment, the light-emitting element layer 130 may include white light-emitting elements and color filters. The light-emitting elements of the light-emitting element layer 130 may be covered with a protective layer including an organic film and a protective film.

[0047] The encapsulation layer 140 covers the light emitting device layer 130 to seal the circuit layer 120 and the light emitting device layer 130. For example, the encapsulation layer 140 may have a multi-insulating film structure in which organic and inorganic films are alternately stacked. In this case, the inorganic film blocks the penetration of moisture and oxygen. The organic film flattens the surface of the inorganic film. When organic and inorganic films are stacked in multiple layers, the migration path of moisture and oxygen becomes longer compared to a single layer, and the penetration of moisture and oxygen that affects the light emitting device layer 130 can be effectively blocked.

[0048] The touch sensor layer 150 may include a capacitive touch sensor 151 that senses a touch input based on a change in capacitance before and after the touch input. The touch sensor layer 150 may include a metal wiring pattern that forms the capacitance of the touch sensor 151 and an insulating film 152. The insulating film 152 can insulate intersecting portions of the metal wiring pattern and planarize the surface of the touch sensor layer 150.

[0049] The insulating film 152 may be formed in a layered structure or a multi-layered structure in which organic films and inorganic films are stacked in multiple layers.

[0050] The insulating film 152 may be formed of a single layer of an organic material. When the groove 210 is formed on the front surface of the cover 200 through an etching process, the insulating film 152 made of an organic material can serve as an etch stopper. For example, even if a hole through which an etchant penetrates the cover 200 is formed during the etching process to form the groove 210, the insulating film 152 made of an organic material can prevent the touch sensor 151, the circuit layer 120, the light emitting element layer 130, etc. from being damaged by the etchant.

[0051] Furthermore, the insulating film 152 may be formed in a multi-layer structure in which organic and inorganic films are stacked in multiple layers, and the organic film of the insulating film 152 serves as an etching stopper to prevent damage to the touch sensor 151, the circuit layer 120, the light-emitting element layer 130, etc. In this case, it is preferable that the organic film be disposed as the uppermost layer of the insulating film 152 that comes into contact with the cover 200.

[0052] A plate may further be disposed on the rear surface of the display panel 100 .

[0053] The plate is attached to the rear surface of the display panel 100 to support and protect the display panel 100. The plate may be made of a rigid and highly thermally conductive material, such as a metal material such as aluminum (Al), copper (Cu), zinc (Zn), silver (Ag), gold (Au), iron (Fe), SUS (Steel Use Stainless Steel), or Invar. As a result, the plate disperses heat generated in the display panel 100, minimizing temperature differences between regions of the display panel 100 and achieving a uniform temperature distribution in the display panel 100.

[0054] The substrate 500 can be disposed on the rear surface of the display panel 100. If a plate is disposed on the rear surface of the display panel 100, the substrate 500 can be disposed on the rear surface of the plate.

[0055] The substrate 500 may include a plate-shaped circuit board body and circuit elements mounted on the circuit board body. For example, the substrate 500 may include a camera, a vehicle main control module, a communication device, a device for driving the display panel 100, etc. The substrate 500 may also include internal circuits and various other active and passive devices. A flexible film 600 may be electrically connected to one side of the circuit board body. Here, the substrate 500 may be a printed circuit board (PCB).

[0056] At least one flexible film 600 can electrically connect the display panel 100 and the substrate 500. That is, the flexible film 600 can connect pad electrodes of the display panel 100 to output terminals of the substrate 500. In this case, the flexible film 600 can be bonded to the display panel 100 via an anisotropic conductive film (ACF). Here, the flexible film 600 can be a flexible printed circuit board (FPCB) or a chip-on-film (COF) on which an IC integrating circuits of the data driver DD and / or the gate driver GD is mounted, but is not limited thereto. The flexible film 600 may also be called a flexible circuit film.

[0057] The cover 200 is disposed on the front surface of the display panel 100 to protect the display panel 100. In this case, the cover 200 can be attached to the front surface of the display panel 100 using an adhesive member. Here, the rear surface of the cover 200 refers to one surface of the cover 200 that faces the front surface of the display panel 100, and the front surface of the cover 200 refers to the surface opposite the rear surface of the cover 200.

[0058] In addition, the horizontal area of ​​the cover 200 may be larger than the horizontal area of ​​the display panel 100 .

[0059] Also, the cover 200 may be made of a transparent material, so that light emitted from the display panel 100 can pass through the cover 200. Here, the cover 200 may be a cover glass made of a glass material.

[0060] Furthermore, cover 200 may include a light-shielding layer such as a black matrix disposed on the edge, and the light-shielding layer can prevent components disposed in non-display area NA from being exposed to the outside. For example, the light-shielding layer may be disposed on the edge of the rear surface of cover 200 so that a part of flexible film 600 disposed so as to overlap non-display area NA is not visible from the outside.

[0061] FIG. 7 is a diagram illustrating a cross-sectional structure of a groove in a cover disposed in a display device according to one embodiment of the present invention. As shown in FIG. 7(a) and FIG. 7(b), the groove formed in the cover can be configured in various embodiments depending on the surface processing method.

[0062] 2 and 7, the cover 200 may include a ring-shaped groove 210 recessed into the front surface of the cover 200. The groove 210 may include two inner surfaces 2101 spaced apart from each other and a bottom surface 2102 connecting the two inner surfaces 2101. The inner surfaces 2101 may include a first inner surface 2101a disposed on the inside and a second inner surface 2101b disposed on the outside, and the first inner surface 2101a and the second inner surface 2101b may be spaced apart from each other. Here, the "inner" refers to the direction toward the center C of the groove 210, and the "outer" refers to the direction opposite to the inner surface.

[0063] Since the groove 210 is formed in a ring shape, the knob 400 coupled to the groove 210 can be guided to a predetermined coupling position. For example, since the display device 1 according to the present invention has the ring-shaped groove 210, the knob 400 can be guided to a predetermined position without using a separate alignment mark and a vision camera.

[0064] Furthermore, since the end of the knob 400 is positioned within the groove 210, even if an external force is applied to the knob 400 due to operation of the knob 400, the inner surface 2101 of the groove 210 that supports the knob 400 can prevent the knob 400 from falling off.

[0065] The groove 210 may be formed through various surface processing processes performed on the front surface of the cover 200. For example, the groove 210 may be formed through an etching process using an etchant, a cutting process using a cutting tool such as an end mill, a laser processing process, etc. Here, the cover 200 may be formed of a glass material and the insulating film 152 of the touch sensor layer 150 may be formed of an organic material, so the groove 210 of the cover 200 may be formed through an etching process. For example, the cover 200 may be etched by spraying an etchant onto the cover 200 to which a mask is bonded, or by a dipping method in which the cover 200 is immersed in a water bath filled with an etchant. As a result, the inner surface 2101 of the groove 210 may be formed to have a tapered surface or rounded corners.

[0066] FIG. 8 is a diagram showing an image displayed in area A of FIG.

[0067] 8, an image displayed inside the ring-shaped groove 210 may be different from an image displayed outside the groove 210. For example, a user of the display device 1 according to the embodiment of the present invention can control the driving of the display panel 100 using the ring-shaped knob 400, and the display panel 100 can display different images in the first display area AA1 and the second display area AA2 based on the ring-shaped groove 210. Therefore, the display device according to the embodiment of the present invention can display different images inside the knob 400 and outside the knob 400, thereby providing user convenience.

[0068] The adhesive member 300 may be disposed inside the groove 210 to fix one side of the knob 400. For example, the support part 411 of the knob 400 may be fixed to the cover 200 by the adhesive member 300. That is, after disposing the adhesive member 300 inside the groove 210, the lower end of the support part 411 may be disposed inside the groove 210, thereby fixing the support part 411 to the cover 200. In this case, since the width of the support part 411 is smaller than the width of the groove 210, a space may be formed between the support part 411 and the inner surface 2101 that forms the groove 210.

[0069] The adhesive member 300 may be provided as an adhesive tape or a liquid adhesive, for example, a liquid adhesive such as epoxy or resin.

[0070] FIG. 9 is a perspective view showing a knob disposed on a display device according to an embodiment of the present invention, and FIG. 10 is a cross-sectional view showing a knob disposed on a display device according to an embodiment of the present invention.

[0071] 9 and 10, the knob 400 may include a body 410 coupled to the groove 210 and a dial 420 rotatably disposed on the dee 410. The body 410 may include a support portion 411 coupled to the groove 210 and a body portion 412 disposed on the support portion 411.

[0072] The support portion 411 may be formed in the shape of a sleeve, a cylinder, or a pipe having a predetermined length, and the lower side surface of the support portion 411 may include an inclined surface having a predetermined slope in order to increase the contact area with the liquid adhesive.

[0073] The body part 412 may be formed in a ring shape and may be detachably disposed on the upper part of the support part 411. For example, the support part 411 and the body part 412 may be detachably coupled to each other using a fitting coupling structure, adhesive member, or fastening member. As a result, even if the shape of the cover 200 to be disposed on a flat panel display device or a curved display device is different, the body part 412 and the dial 420 can be shared, thereby improving productivity of the display device. Here, the display device 1 according to the embodiment of the present invention illustrates an example in which the support part 411 and the body part 412 are detachably coupled to each other, but the present invention is not necessarily limited to this. The support part 411 and the body part 412 may also be formed integrally.

[0074] The dial 420 may be rotatably disposed on the body 410 and may be formed in a ring shape, so that an image displayed on the display panel 100 can be viewed through the inside of the dial 420. In this case, the upper surface of the dial 420 may include a plane, which may be parallel to the flat display panel 100.

[0075] FIG. 11 is a diagram showing the coupling relationship between the key groove of the cover and the key of the knob arranged in the display device according to the embodiment of the present invention.

[0076] Referring to FIG. 11, the cover 200 disposed on the display device 1 according to an embodiment of the present invention may further include a key groove 220 extending radially from the groove 210, and the knob 400 may further include a key 430 protruding from the support portion 411 to correspond to the key groove 220.

[0077] The key groove 220 may be formed to communicate with the recessed groove 210. Thereby, the adhesive filled inside the recessed groove 210 may also be filled inside the key groove 220.

[0078] The keyway 220 can extend radially from the recessed groove 210 so as to communicate with the first inner surface 2101 a, but is not necessarily limited to this. For example, the keyway 220 can also extend radially from the recessed groove 210 so as to communicate with the second inner surface 2101 b.

[0079] The key 430 may be formed to protrude in the radial direction from the inner circumferential surface of the support portion 411, but is not necessarily limited to this. For example, when the key groove 220 is formed to communicate with the second inner surface 2101b, the key 430 may be formed to protrude in the radial direction from the outer circumferential surface of the support portion 411. Here, the key 430 may be formed in a hexahedral shape, but is not necessarily limited to this.

[0080] Also, the key 430 may be disposed inside the key groove 220 and fixed by the adhesive member 300. As a result, the coupling between the key groove 220 and the key 430 can prevent the body 410 from rotating and can guide the knob 400 so that it can be coupled at a preset position.

[0081] Therefore, the display device 1 according to the embodiment of the present invention can accommodate a load applied to the knob 400 in the horizontal direction through the combination of the groove 210 and the support part 411, and can accommodate a load that rotates the body 410 around the center of the groove 210 through the combination of the key groove 220 and the key 430.

[0082] FIG. 12 is a diagram showing one embodiment of a centering rib for a knob arranged on a display device according to an embodiment of the present invention, and FIG. 13 is a diagram showing another embodiment of a centering rib for a knob arranged on a display device according to an embodiment of the present invention.

[0083] 12 and 13, the knob 400 may include at least two centering ribs 440a, 440b formed to protrude from the outer circumferential surface of the support portion 411.

[0084] The centering ribs 440a, 440b may be formed to protrude radially from the outer circumferential surface of the support portion 411.

[0085] Furthermore, at least two centering ribs 440a, 440b may be arranged so as to be spaced apart at a predetermined interval along the circumferential direction of the support portion 411. For example, two or more centering ribs 440a, 440b may be arranged, and when two centering ribs 440a, 440b are arranged, they may be arranged symmetrically with respect to the center of the support portion 411. Here, the center of the support portion 411 may be located at the same position as the center C of the groove 210. Furthermore, when four centering ribs 440a, 440b are arranged, the centering ribs 440a, 440b may be arranged at 90-degree intervals along the circumferential direction.

[0086] Furthermore, the centering ribs 440a, 440b contact the second inner surface 2101b that forms the recessed groove 210 to guide the placement of the support portion 411, so that the knob 400 can be positioned at a predetermined position on a horizontal plane.

[0087] Furthermore, regardless of whether the adhesive dotting amount used as the adhesive member 300 is large or small, the centering ribs 440a and 440b can prevent the knob 400 from being biased to one side.

[0088] Furthermore, the centering ribs 440a and 440b may be in line or point contact with the second inner surface 2101b that forms the recessed groove 210. That is, the centering ribs 440a and 440b may minimize contact with the second inner surface 2101b through line or point contact with the second inner surface 2101b, thereby maximizing the contact area with the adhesive, thereby improving adhesion between the knob 400 and the adhesive.

[0089] 12, the centering rib 440a may be formed in a semi-cylindrical shape with a predetermined radius. This allows the centering rib 440a to be in line contact with the second inner surface 2101b. At this time, the adhesive may be disposed to cover the upper surface 441 of the centering rib 440a. This may further improve the adhesion between the knob 400 and the adhesive. Furthermore, as the adhesive hardens, the fixing force of the knob 400 to the cover 200 may be further improved.

[0090] 13, the centering rib 440b may be formed in a hemispherical shape, so that the centering rib 440b comes into point contact with the second inner surface 2101b that forms the recessed groove 210.

[0091] The knob 400 of the flat panel display device 1 described above can be used for a curved display device. Here, the curved display device can include a concave type display device having a recessed curved surface and a convex type display device having a convex curved surface.

[0092] Fig. 14 is a perspective view showing a display device according to another embodiment of the present invention. Fig. 15 is a cross-sectional view showing a display device according to another embodiment of the present invention, illustrating the positional relationship between the knob and the cover, and an enlarged portion of Fig. 15 is a conceptual diagram illustrating technical features of the display device according to another embodiment of the present invention. Fig. 16 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating another positional relationship between the knob and the cover, and an enlarged portion of Fig. 16 is a conceptual diagram illustrating technical features of the display device according to another embodiment of the present invention. Here, the concave type display device shown in Fig. 15 may be referred to as a display device according to a second embodiment, and the concave type display device shown in Fig. 16 may be referred to as a display device according to a third embodiment.

[0093] Referring to Figures 1 and 14, when comparing the display device 1 according to the first embodiment with the display devices 1a according to the second and third embodiments, the cover 200a of the display device 1a according to the second and third embodiments differs from the display device 1 according to the first embodiment in that it includes a recessed curved surface.

[0094] Furthermore, when comparing the display device 1a according to the second embodiment with the display device 1a according to the third embodiment, the display device 1a according to the second embodiment differs from the display device 1a according to the third embodiment in that the upper surface of the knob 400 is arranged parallel to the tangent line passing through the curved surface of the cover 200a. Here, the tangent line passing through the curved surface of the cover 200a may be the tangent line at the center C of the groove 210.

[0095] 14 to 16, a display device 1a according to another embodiment of the present invention may include a display panel 100a, a cover 200a disposed on the front surface of the display panel 100a and including a concave curved surface formed with a predetermined curvature, an adhesive member 300 disposed in a groove 210 formed in the front surface of the cover 200a, and a knob 400 coupled to the groove 210 via the adhesive member 300. In this case, the groove 210 may be formed in a ring shape having a predetermined depth. In addition, the display device 1a according to another embodiment of the present invention may include a key groove 220, a key 430 formed to correspond to the key groove 220, and centering ribs 440a and 440b.

[0096] The display panel 100a may include a curved surface that corresponds to the curved surface of the cover 200a.

[0097] The display panel 100a may include a circuit layer 120 disposed on a panel substrate 110, a light-emitting element layer 130 disposed on the circuit layer 120, an encapsulating layer 140 disposed on the light-emitting element layer 130, and a touch sensor layer 150 formed on the encapsulating layer 140.

[0098] The cover 200a includes a concave curved surface formed to have a predetermined curvature, and the curved surface may be the front surface of the cover 200a, thereby including an imaginary tangent line TL1 that is tangent to the curved surface of the cover 200a.

[0099] The viewing angle of the user looking at the knob 400 varies depending on the position where the concave type display device 1a is installed in the vehicle.

[0100] By adjusting the position of the groove 210 in consideration of the position where the concave type display device 1a is placed, the user's convenience in recognizing the knob 400 can be improved.

[0101] 15, in the display device 1a according to the second embodiment, an imaginary straight line L1 passing through the top surface of the knob 400 may be disposed parallel to an imaginary tangent line TL1 tangent to the curved surface of the cover 200a. Thus, an imaginary normal line NL1 perpendicular to the tangent line TL1 may be perpendicular to the imaginary straight line L1 passing through the top surface of the knob 400. Here, the top surface of the knob 400 may be the top surface of the dial 420.

[0102] In this case, the coupling direction CD of the knob 400 of the display device 1a according to the second embodiment may be the same as or parallel to the normal line NL1.

[0103] 16, in the display device 1a according to the third embodiment, an imaginary line L1 passing through the top surface of the knob 400 may be disposed non-parallel to an imaginary tangent line TL1 tangent to the curved surface of the cover 200a. Therefore, there is an intersection where the imaginary line L1 and the imaginary tangent line TL1 intersect. A normal line NL1 perpendicular to the tangent line TL1 may be disposed to have a first inclination angle θ1 with respect to a coupling direction CD in which the support portion 411 of the knob 400 couples with the groove 210. That is, because the groove 210 of the cover 200a is disposed at an angle with respect to the normal line NL1, an acute angle may be formed between the coupling direction CD of the knob 400 and the normal line NL1. By coupling the knob 400 to the inclined groove 210 formed on the front surface of the cover 200a, the viewing position at which the knob 400 is recognized can be adjusted, thereby improving user convenience.

[0104] Fig. 17 is a perspective view showing a display device according to yet another embodiment of the present invention. Fig. 18 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating the positional relationship between the knob and the cover, and an enlarged portion of Fig. 18 is a conceptual diagram illustrating technical features of the display device according to yet another embodiment of the present invention. Fig. 19 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating another positional relationship between the knob and the cover, and an enlarged portion of Fig. 19 is a conceptual diagram illustrating technical features of the display device according to yet another embodiment of the present invention. Here, the convex type display device shown in Fig. 18 may be referred to as a display device according to a fourth embodiment, and the convex type display device shown in Fig. 19 may be referred to as a display device according to a fifth embodiment.

[0105] Referring to Figures 1 and 17, when comparing the display device 1 according to the first embodiment with the display device 1b according to the fourth and fifth embodiments, the cover 200b of the display device 1b according to the fourth and fifth embodiments differs from the display device 1 according to the first embodiment in that it includes a bulging curved surface.

[0106] Furthermore, when comparing the display device 1b according to the fourth embodiment with the display device 1b according to the fifth embodiment, the display device 1b according to the fourth embodiment differs from the display device 1b according to the fifth embodiment in that the upper surface of the knob 400 is arranged parallel to the tangent line passing through the curved surface of the cover 200b. Here, the tangent line passing through the curved surface of the cover 200b may be the tangent line at the center C of the groove 210.

[0107] 17 to 19, a display device 1b according to another embodiment of the present invention may include a display panel 100b, a cover 200b disposed on the front surface of the display panel 100b and including a convex curved surface formed with a predetermined curvature, an adhesive member 300 disposed in a groove 210 formed in the front surface of the cover 200b, and a knob 400 coupled to the groove 210 via the adhesive member 300. In this case, the groove 210 may be formed in a ring shape having a predetermined depth. The display device 1b according to another embodiment of the present invention may also include a key groove 220, a key 430 formed to correspond to the key groove 220, and centering ribs 440a and 440b.

[0108] Display panel 100b may include a curved surface that corresponds to the curved surface of cover 200b.

[0109] The display panel 100b may include a circuit layer 120 disposed on a panel substrate 110, a light-emitting element layer 130 disposed on the circuit layer 120, an encapsulating layer 140 disposed on the light-emitting element layer 130, and a touch sensor layer 150 formed on the encapsulating layer 140.

[0110] The cover 200b includes a convex curved surface formed to have a predetermined curvature, and the curved surface may be the front surface of the cover 200b, thereby including an imaginary tangent line TL2 that is tangent to the curved surface of the cover 200b.

[0111] The viewing angle of the user looking at the knob 400 varies depending on the position where the convex type display device 1b is disposed in the vehicle.

[0112] By adjusting the position of the groove 210 in consideration of the position where the convex type display device 1b is placed, the user's convenience in recognizing the knob 400 can be improved.

[0113] 18, in the display device 1b according to the fourth embodiment, an imaginary straight line L2 passing through the top surface of the knob 400 may be disposed parallel to an imaginary tangent line TL2 tangent to the curved surface of the cover 200b. Thus, an imaginary normal line NL2 perpendicular to the tangent line TL2 may be perpendicular to the imaginary straight line L2 passing through the top surface of the knob 400. Here, the top surface of the knob 400 may be the top surface of the dial 420.

[0114] In this case, the coupling direction CD of the knob 400 of the display device 1b according to the fourth embodiment may be the same as the normal line NL2.

[0115] 19, in the display device 1b according to the fifth embodiment, an imaginary line L2 passing through the top surface of the knob 400 may be disposed non-parallel to an imaginary tangent line TL2 tangent to the curved surface of the cover 200b. Therefore, there is an intersection where the imaginary line L2 and the imaginary tangent line TL2 intersect. A normal line NL2 perpendicular to the tangent line TL2 may be disposed to have a second inclination angle θ2 with respect to the coupling direction CD in which the support portion 411 of the knob 400 couples with the groove 210. That is, because the groove 210 of the cover 200b is disposed at an incline with respect to the normal line NL2, an acute included angle may be formed between the coupling direction CD of the knob 400 and the normal line NL2. Therefore, the knob 400 is coupled to the inclined groove 210 formed on the front surface of the cover 200b, improving the user's convenience in identifying the knob 400.

[0116] The curved display device described above can include a concave type display device having at least two curvatures and a convex type display device.

[0117] By adjusting at least one of the depth of the groove and the length of the knob support portion in consideration of the position of the knob placed on a concave type or convex type display device, the display device according to the embodiment of the present invention can improve the convenience of the user in recognizing the knob.

[0118] FIG. 20 is a perspective view showing a display device according to yet another embodiment of the present invention, and FIG. 21 is a diagram showing a cover having at least two curvatures in a display device according to yet another embodiment of the present invention. FIG. 22 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating the positional relationship between the knob and the cover, and an enlarged portion of FIG. 22 is a conceptual diagram illustrating technical features of the display device according to yet another embodiment of the present invention. FIG. 23 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating another positional relationship between the knob and the cover, and an enlarged portion of FIG. 23 is a conceptual diagram illustrating technical features of the display device according to yet another embodiment of the present invention. Here, the concave type display device shown in FIG. 22 may be referred to as a display device according to a sixth embodiment, and the concave type display device shown in FIG. 23 may be referred to as a display device according to a seventh embodiment.

[0119] Referring to Figures 14 and 20 to 23, when comparing the display device 1a according to the second and third embodiments with the display device 1c according to the sixth and seventh embodiments, the cover 200a of the display device 1c according to the sixth and seventh embodiments differs from the display device 1a according to the second and third embodiments in that it includes at least two recessed curved surfaces CS1 and CS2 with different curvatures, and the depth of the groove 210a and / or the length of the support portion 411a of the knob 400a are adjusted corresponding to the at least two recessed curved surfaces CS1 and CS2.

[0120] 20 and 21, the curved surface CS of the cover 200a may include a first curved surface CS1 and a second curved surface CS2 having different curvatures. The first curved surface CS1 and the second curved surface CS2 may be arranged to overlap the knobs 400 and 400a. The imaginary boundary line between the first curved surface CS1 and the second curved surface CS2 may pass through the center of the groove 210a, but is not necessarily limited to this. The curvature (1 / R1) of the first curved surface CS1 and the curvature (1 / R2) of the second curved surface CS2 may be different. For example, the curvature (1 / R1) of the first curved surface CS1 may be greater than the curvature (1 / R2) of the second curved surface CS2. The center of curvature C1 of the first curved surface CS1 and the center of curvature C2 of the second curved surface CS2 are located closer to the cover 200a than to the display panel 100a.

[0121] 20 to 23, a display device 1c according to another embodiment of the present invention may include a display panel 100a, a cover 200a disposed on the front surface of the display panel 100a and including a concave curved surface CS, a groove 210 recessed into the front surface of the cover 200a, an adhesive member 300 disposed on the groove 210a, and knobs 400, 400a coupled to the grooves 210, 210a via the adhesive member 300. In this case, the grooves 210, 210a may be formed in a ring shape having a predetermined depth. In addition, the display device 1c according to yet another embodiment of the present invention may include a key groove 220, a key 430 formed to correspond to the key groove 220, and centering ribs 440a, 440b.

[0122] The display panel 100a may include a curved surface that corresponds to the curved surface of the cover 200a.

[0123] The display panel 100a may include a circuit layer 120 disposed on a panel substrate 110, a light-emitting element layer 130 disposed on the circuit layer 120, an encapsulating layer 140 disposed on the light-emitting element layer 130, and a touch sensor layer 150 formed on the encapsulating layer 140.

[0124] The cover 200a includes a recessed curved surface CS formed to have a predetermined curvature, and the curved surface CS may include a first curved surface CS1 and a second curved surface CS2 having different curvatures. In this case, the curved surface CS may be the front surface of the cover 200a.

[0125] By adjusting the depth of the groove 210a and / or the support portion 411a in consideration of the position where the concave type display device 1c is placed and at least two curved surfaces CS1 and CS2 with different curvatures, the user's convenience in recognizing the knobs 400 and 400a can be improved.

[0126] Referring to FIG. 22, a display device 1c according to the sixth embodiment may include a display panel 100a, a cover 200a disposed on the front surface of the display panel 100a and including at least two curved surfaces CS1 and CS2 with different curvatures, an adhesive member 300 disposed in a groove 210a recessed in the front surface of the cover 200a, and a knob 400 coupled to the groove 210a via the adhesive member 300.

[0127] The groove 210a may be formed to have different depths on one side and the other. For example, the depth of the groove 210a may decrease from one side to the other. As a result, the width of the groove 210a is greater than the width of the support portion 411, so that even if the length of the support portion 411 is constant, the knob 400 can be positioned at an angle corresponding to the depth of the groove 210a.

[0128] When the curvature (1 / R1) of the first curved surface CS1 is greater than the curvature (1 / R2) of the second curved surface CS2, the first depth D1 in the first groove region 211 is greater than the second depth D2 in the second groove region 212, and the depth of the groove 210a may decrease from the first groove region 211 to the second groove region 212. Here, the first groove region 211 indicates the region where the groove 210a is deepest, and the second groove region 212 indicates the region where the groove 210a is shallowest.

[0129] Therefore, the display device 1c according to the sixth embodiment can adjust the depth of the groove 210a to adjust the angle of the knob 400 so that the user can easily recognize the top surface of the knob 400. For example, in the curved surfaces CS1 and CS2 having at least two curvatures, the depth of the groove 210a on the curved surface with the greater curvature can be made deeper than the depth of the groove 210a on the curved surface with the smaller curvature, thereby improving the user's convenience in identifying the knob 400.

[0130] Referring to FIG. 23, a display device 1c according to the seventh embodiment may include a display panel 100a, a cover 200a disposed on the front surface of the display panel 100a and including at least two curved surfaces CS1 and CS2 with different curvatures, an adhesive member 300 disposed in a groove 210 recessed in the front surface of the cover 200a, and a knob 400a coupled to the groove 210 via the adhesive member 300.

[0131] The knob 400a may include a body 410 coupled to the groove 210, and a dial 420 rotatably disposed on the body 410. The body 410 may include a support portion 413 coupled to the groove 210, and a body portion 412 disposed on the support portion 413.

[0132] The support portion 413 may be formed in a sleeve, cylinder, or pipe shape having a predetermined length, and the length of the support portion 413 may increase from one side to the other. Accordingly, the lower surface 414 of the support portion 413 may be formed as an inclined surface having a predetermined inclination.

[0133] The support portion 413 may be formed so that one side has a different length than the other. For example, the length of the support portion 413 may increase from one side to the other. If the curvature (1 / R1) of the first curved surface CS1 is greater than the curvature (1 / R2) of the second curved surface CS2, the first length H1 of the first support region 413a may be smaller than the second length H2 of the second support region 413b, and the length of the support portion 413 may increase from the first support region 413a to the second support region 413b. Here, the first support region 413a indicates the region of the support portion 413 where the length is shortest, and the second support region 413b indicates the region of the support portion 413 where the length is longest.

[0134] Therefore, the display device 1c according to the seventh embodiment can adjust the angle of the knob 400a so that the user can easily recognize the top surface of the knob 400a by adjusting the length of the support part 413. For example, for curved surfaces CS1 and CS2 having at least two curvatures, the length of the support part 413 on the curved surface side with the greater curvature can be made shorter than the length of the support part 413 on the curved surface side with the smaller curvature, thereby improving the user's convenience in recognizing the knob 400a.

[0135] In a display device 1c according to still another embodiment of the present invention, the display device 1c shown in Fig. 22 has an example in which the depth of the groove 210a is adjusted, and the display device 1c shown in Fig. 23 has an example in which the length of the support portion 413 is adjusted, but the present invention is not necessarily limited to this. For example, both the depth of the groove 210a and the length of the support portion 413 may be adjusted corresponding to at least two curved surfaces CS1 and CS2 having different curvatures.

[0136] FIG. 24 is a perspective view showing a display device according to yet another embodiment of the present invention, and FIG. 25 is a diagram showing a cover having at least two curvatures in a display device according to yet another embodiment of the present invention. FIG. 26 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating the positional relationship between the knob and the cover, and an enlarged portion of FIG. 26 is a conceptual diagram illustrating technical features of the display device according to yet another embodiment of the present invention. FIG. 27 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, illustrating another positional relationship between the knob and the cover, and an enlarged portion of FIG. 27 is a conceptual diagram illustrating technical features of the display device according to yet another embodiment of the present invention. Here, the convex type display device shown in FIG. 26 may be referred to as a display device according to an eighth embodiment, and the convex type display device shown in FIG. 27 may be referred to as a display device according to a ninth embodiment.

[0137] Referring to Figures 17 and 24 to 27, when comparing the display device 1b according to the fourth and fifth embodiments with the display device 1d according to the eighth and ninth embodiments, the cover 200b of the display device 1d according to the eighth and ninth embodiments differs from the display device 1b according to the fourth and fifth embodiments in that it includes at least two convex curved surfaces CS3 and CS4 with different curvatures, and the depth of the groove 210a and / or the length of the support portion 411a of the knob 400a are adjusted corresponding to the at least two convex curved surfaces CS3 and CS4.

[0138] 24 and 25, the curved surface CS of the cover 200a may include a third curved surface CS3 and a fourth curved surface CS4 having different curvatures. The third curved surface CS3 and the fourth curved surface CS4 may be arranged to overlap the knobs 400 and 400a. The imaginary boundary line between the third curved surface CS3 and the fourth curved surface CS4 may pass through the center of the groove 210a, but is not necessarily limited to this. The curvature (1 / R3) of the third curved surface CS3 and the curvature (1 / R4) of the fourth curved surface CS4 may be different. For example, the curvature (1 / R3) of the third curved surface CS3 may be greater than the curvature (1 / R4) of the fourth curved surface CS4. The center of curvature C3 of the third curved surface CS3 and the center of curvature C4 of the fourth curved surface CS4 are arranged closer to the display panel 100b than the cover 200b.

[0139] 24 to 27, a display device 1d according to another embodiment of the present invention may include a display panel 100b, a cover 200b disposed on the front surface of the display panel 100b and including a convex curved surface CS, a groove 210 recessed into the front surface of the cover 200b, an adhesive member 300 disposed on the groove 210a, and knobs 400, 400a coupled to the grooves 210, 210a via the adhesive member 300. In this case, the grooves 210, 210a may be formed in a ring shape having a predetermined depth. In addition, the display device 1d according to yet another embodiment of the present invention may include a key groove 220, a key 430 formed to correspond to the key groove 220, and centering ribs 440a, 440b.

[0140] Display panel 100b may include a curved surface that corresponds to the curved surface of cover 200b.

[0141] The display panel 100b may include a circuit layer 120 arranged on the panel substrate 110, a light-emitting element layer 130 arranged on the circuit layer 120, a sealing layer 140 arranged on the light-emitting element layer 130, and a touch sensor layer 150 formed on the sealing layer 140.

[0142] The cover 200b includes a curved surface CS formed to have a predetermined curvature, and the curved surface CS may include a third curved surface CS3 and a fourth curved surface CS4 having different curvatures. In this case, the curved surface CS may be the front surface of the cover 200b.

[0143] By adjusting the depth of the groove 210a and / or the support portion 411a in consideration of the position where the convex type display device 1d is placed and at least two curved surfaces CS3 and CS4 with different curvatures, the user's convenience in recognizing the knobs 400 and 400a can be improved.

[0144] Referring to FIG. 26, a display device 1d according to the eighth embodiment may include a display panel 100b, a cover 200b disposed on the front surface of the display panel 100b and including at least two curved surfaces CS3 and CS4 with different curvatures, an adhesive member 300 disposed in a groove 210a recessed into the front surface of the cover 200b, and a knob 400 coupled to the groove 210a via the adhesive member 300.

[0145] The groove 210a may be formed so that its depth varies from one side to the other. For example, the depth of the groove 210a may increase from one side to the other. As a result, the width of the groove 210a is greater than the width of the support portion 411, so that even if the length of the support portion 411 is constant, the knob 400 can be positioned at an angle corresponding to the depth of the groove 210a.

[0146] When the curvature (1 / R3) of the third curved surface CS3 is greater than the curvature (1 / R4) of the fourth curved surface CS4, the third depth D3 in the third groove region 213 is smaller than the fourth depth D4 in the fourth groove region 214, and the depth of the groove 210a may increase from the third groove region 213 to the fourth groove region 214. Here, the third groove region 213 indicates the region where the depth of the groove 210a is shallowest, and the fourth groove region 214 indicates the region where the depth of the groove 210a is deepest.

[0147] Therefore, the display device 1d according to the eighth embodiment can adjust the depth of the groove 210a to adjust the angle of the knob 400 so that the user can easily recognize the top surface of the knob 400. For example, in the curved surfaces CS3 and CS4 having at least two curvatures, the depth of the groove 210a on the curved surface with the greater curvature can be made shallower than the depth of the groove 210a on the curved surface with the smaller curvature, thereby improving the user's convenience in recognizing the knob 400.

[0148] Referring to FIG. 27, a display device 1d according to the ninth embodiment may include a display panel 100b, a cover 200b disposed on the front surface of the display panel 100b and including at least two curved surfaces CS3 and CS4 with different curvatures, an adhesive member 300 disposed in a groove 210 recessed in the front surface of the cover 200b, and a knob 400a coupled to the groove 210 via the adhesive member 300.

[0149] The knob 400a may include a body 410 coupled to the groove 210, and a dial 420 rotatably disposed on the body 410. The body 410 may include a support portion 413 coupled to the groove 210, and a body portion 412 disposed on the support portion 413.

[0150] The support portion 413 may be formed in a sleeve, cylinder, or pipe shape having a predetermined length, and the length of the support portion 413 may decrease from one side to the other. Accordingly, the lower surface 414 of the support portion 413 may be formed as an inclined surface having a predetermined inclination.

[0151] The support portion 413 may be formed so that its length differs from one side to the other. For example, the length of the support portion 413 may decrease from one side to the other. If the curvature (1 / R3) of the third curved surface CS3 is greater than the curvature (1 / R4) of the fourth curved surface CS4, the third length H3 in the third support region 413c may be greater than the fourth length H4 in the fourth support region 413d, and the length of the support portion 413 may decrease from the third support region 413c to the fourth support region 413d. Here, the third support region 413c indicates the region of the support portion 413 that is longest, and the fourth support region 413d indicates the region of the support portion 413 that is shortest.

[0152] Therefore, the display device 1d according to the ninth embodiment can adjust the angle of the knob 400a so that the user can easily recognize the top surface of the knob 400a by adjusting the length of the support portion 413. For example, for curved surfaces CS3 and CS4 having at least two curvatures, the length of the support portion 413 on the curved surface side with the greater curvature can be made longer than the length of the support portion 413 on the curved surface side with the smaller curvature, thereby improving the user's convenience in recognizing the knob 400a.

[0153] In a display device 1d according to still another embodiment of the present invention, the display device 1d shown in Fig. 26 has an example in which the depth of the groove 210a is adjusted, and the display device 1d shown in Fig. 27 has an example in which the length of the support portion 413 is adjusted, but the present invention is not necessarily limited to this. For example, both the depth of the groove 210a and the length of the support portion 413 may be adjusted to correspond to at least two curved surfaces CS3 and CS4 having different curvatures.

[0154] FIG. 28 is a diagram showing an example of use of a display device according to an embodiment of the present invention, in which the display device is disposed inside a vehicle.

[0155] 28, the display devices 1, 1a, 1b, 1c, and 1d according to the embodiments of the present invention may be arranged in at least a part of a vehicle dashboard. Here, the vehicle dashboard may represent a part of the vehicle that is arranged in front of the front seats (e.g., driver's seat, passenger seat) of the vehicle. An input configuration for operating various functions provided in the vehicle (e.g., air conditioning, audio system, navigation system) may be arranged on the vehicle dashboard.

[0156] The display devices 1, 1a, 1b, 1c, and 1d are arranged on the dashboard of a vehicle and can operate as input units for operating at least some of the vehicle's various functions. The display devices 1, 1a, 1b, 1c, and 1d can provide various information related to the vehicle, such as vehicle operation information (e.g., the vehicle's current speed, remaining fuel, and mileage) and information about vehicle parts (e.g., the degree of tire damage).

[0157] The display devices 1, 1a, 1b, 1c, and 1d may be disposed between a driver's seat and a passenger seat in the front seats of a vehicle. The users of the display devices 1, 1a, 1b, 1c, and 1d may include, but are not limited to, the driver of the vehicle and a passenger in the passenger seat. For example, the display devices 1, 1a, 1b, 1c, and 1d may also be provided for passengers in the rear seats.

[0158] The display devices 1, 1a, 1b, 1c, and 1d shown in Fig. 28 may only show a portion thereof. The display devices 1, 1a, 1b, 1c, and 1d shown in Fig. 28 may show a display panel to which a knob is attached, among various components included in the display device 1. Of the components of the display devices 1, 1a, 1b, 1c, and 1d, components other than those shown in Fig. 28 may be mounted inside a vehicle.

[0159] The display device mounted on a vehicle is merely an example for explaining the present invention, and the embodiments of the present invention are not limited thereto. For example, the display device according to the embodiments of the present invention may be applied to mobile devices, medical devices, in-vehicle navigation systems, in-vehicle display devices, wallpaper devices, and home appliances. The display device of the present invention may be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device.

[0160] The above-described embodiment of the present invention can be briefly explained as follows.

[0161] A display device according to an embodiment of the present invention includes a display panel, a cover disposed on a front surface of the display panel, an adhesive member disposed in a groove formed in the front surface of the cover, and a knob coupled to the groove via the adhesive member, the groove being formed in a ring shape.

[0162] In a display device according to an embodiment of the present invention, the knob may include a body that is coupled to the groove and a dial that is rotatably disposed on the body, and the body may include a support portion that is coupled to the groove and a body portion that is disposed on the support portion.

[0163] In the display device according to an embodiment of the present invention, the cover may further include a key groove extending radially from the groove, and the knob may further include a key protruding from the support portion to correspond to the key groove.

[0164] In a display device according to an embodiment of the present invention, the knob further includes at least two centering ribs formed to protrude from the outer peripheral surface of the support portion, and the centering ribs may be in point contact or line contact with the inner surface of the groove.

[0165] In a display device according to an embodiment of the present invention, the cover is formed of a glass material, and the display panel includes a substrate, a circuit layer disposed on the substrate for driving pixels, a light emitting element layer disposed on the circuit layer, an encapsulation layer covering the circuit layer and the light emitting element layer, and a touch sensor layer disposed on the encapsulation layer, and the touch sensor layer may include an insulating film made of an organic material in contact with the cover.

[0166] A display device according to an embodiment of the present invention includes a display panel, a cover disposed on a front surface of the display panel, an adhesive member disposed in a groove recessed in the front surface of the cover, and a knob coupled to the groove via the adhesive member, wherein the groove is ring-shaped, the cover includes a curved surface formed to have a predetermined curvature, and the knob is disposed at an angle to a normal to the curved surface.

[0167] In a display device according to an embodiment of the present invention, the knob includes a body that is coupled to the groove and a dial that is rotatably disposed on the body, the body includes a support portion that is coupled to the groove and a body portion that is disposed on the support portion, and the length of the support portion may increase from one side to the other.

[0168] In a display device according to an embodiment of the present invention, the knob includes a body coupled to the groove and a dial rotatably disposed on the body, the body includes a support portion coupled to the groove and a body portion disposed on the support portion, and the depth of the groove may decrease from one side to the other.

[0169] In the display device according to the embodiment of the present invention, the groove may be formed at an angle on the front surface of the cover.

[0170] In the display device according to the embodiment of the present invention, the curved surface may include a first curved surface and a second curved surface having different curvatures, and the knob may be disposed to overlap the first curved surface and the second curved surface.

[0171] In a display device according to an embodiment of the present invention, the concave curved surface includes a first curved surface and a second curved surface having different curvatures, the groove includes a first groove region having a first depth and a second groove region having a second depth, the first groove region is arranged on the first curved surface, and the second groove region is arranged on the second curved surface, and the first depth and the second depth may be different.

[0172] In a display device according to an embodiment of the present invention, the knob includes a body including a support portion coupled to the groove and a body portion disposed on the support portion, and a dial rotatably disposed on the body portion, and the concavely formed curved surface includes a first curved surface and a second curved surface having different curvatures, a first support region of the support portion is disposed on the first curved surface, and a second support region of the support portion is disposed on the second curved surface, and the length of the first support region and the length of the second support region may be different.

[0173] In a display device according to an embodiment of the present invention, the curved surface formed convexly includes a third curved surface and a fourth curved surface having different curvatures, the groove includes a third groove region having a third depth and a fourth groove region having a fourth depth, the third groove region is arranged on the third curved surface, and the fourth groove region is arranged on the fourth curved surface, and the third depth and the fourth depth may be different.

[0174] In a display device according to an embodiment of the present invention, the knob includes a body including a support portion coupled to the groove and a body portion disposed on the support portion, and a dial rotatably disposed on the body portion, and the curved surface formed convexly includes a third curved surface and a fourth curved surface having different curvatures, a third support region of the support portion is disposed on the third curved surface, and a fourth support region of the support portion is disposed on the fourth curved surface, and the length of the third support region and the length of the fourth support region may be different.

[0175] In a display device according to an embodiment of the present invention, the knob may include a body that is coupled to the groove and a dial that is rotatably disposed on the body, and the body may include a support portion that is coupled to the groove and a body portion that is disposed on the support portion.

[0176] In the display device according to the embodiment of the present invention, the cover may further include a key groove extending radially from the groove, and the knob may further include a key protruding from the support portion to correspond to the key groove.

[0177] In a display device according to an embodiment of the present invention, the knob further includes at least two centering ribs formed to protrude from the outer peripheral surface of the support portion, and the centering ribs may be in point contact or line contact with the inner surface of the groove.

[0178] In a display device according to an embodiment of the present invention, the cover is made of a glass material, and the display panel includes a substrate, a circuit layer disposed on the substrate for driving pixels, a light emitting element layer disposed on the circuit layer, an encapsulation layer covering the circuit layer and the light emitting element layer, and a touch sensor layer disposed on the encapsulation layer, and the touch sensor layer may include an insulating film made of an organic material in contact with the cover.

[0179] As stated above, the contents of the specification, which describe the problem that the invention aims to solve, the means for solving the problem, and the effects of the invention, do not specify the essential features of the claims, and therefore the scope of the claims is not limited by the matters described in the specification.

[0180] Although the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments and can be embodied in various modifications without departing from the spirit of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only and do not limit the spirit of the present invention. Therefore, the embodiments described above should be understood to be illustrative and non-limiting in all respects. The scope of protection of the present invention should be interpreted by the scope of the claims, and all technical concepts within the scope equivalent thereto should be interpreted as being included in the scope of the present invention. [Explanation of symbols]

[0181] 1, 1a, 1b, 1c, 1d: Display device 100, 100a, 100b: Display panel 110: Panel board 120:Circuit layer 130: Light emitting element layer 140: Sealing layer 150: Touch sensor layer 152: insulating film 200, 200a, 200b: Cover 210, 210a: Concave groove 220: Keyway 300: Adhesive material 400, 400a: Knob 410: Body 411, 413: Support part 420:Dial 430: Key 40a, 440b: Centering rib

Claims

1. A display panel; a cover disposed on the front surface of the display panel; an adhesive member disposed in a recessed groove formed in the front surface of the cover; a knob coupled to the groove via the adhesive member; The display device, wherein the groove is ring-shaped.

2. The knob includes a body coupled to the groove and a dial rotatably disposed on the body. The display device of claim 1 , wherein the body includes a support portion coupled to the groove and a body portion disposed on the support portion.

3. The cover further includes a key groove extending radially from the recessed groove, The display device according to claim 2 , wherein the knob further includes a key protruding from the support portion so as to correspond to the key groove.

4. The knob further includes at least two centering ribs protruding from an outer peripheral surface of the support portion, The display device according to claim 2 , wherein the centering rib is in point contact or line contact with the inner surface of the recessed groove.

5. The display device of claim 2 , wherein the lower surface of the support portion includes an inclined surface having a predetermined inclination.

6. The cover is made of a glass material, the display panel includes a substrate, a circuit layer disposed on the substrate and configured to drive pixels, a light emitting element layer disposed on the circuit layer, an encapsulation layer disposed on the circuit layer and the light emitting element layer, and a touch sensor layer disposed on the encapsulation layer; The display device of claim 1 , wherein the touch sensor layer comprises an insulating layer made of an organic material in contact with the cover.

7. A display panel; a cover disposed on the front surface of the display panel; an adhesive member disposed in a recessed groove on the front surface of the cover; a knob coupled to the groove via the adhesive member; The groove is ring-shaped, the cover includes a curved surface formed to have a predetermined curvature; The display device, wherein the knob is disposed at an angle to a normal to the curved surface.

8. The knob includes a body coupled to the groove and a dial rotatably disposed on the body. The body includes a support portion coupled to the groove and a body portion disposed on the support portion, The display device of claim 7 , wherein the length of the support portion increases from one side to the other side.

9. The knob includes a body coupled to the groove and a dial rotatably disposed on the body. The body includes a support portion coupled to the groove and a body portion disposed on the support portion, The display device of claim 7 , wherein the depth of the groove decreases from one side to the other side.

10. The display device according to claim 7 , wherein the groove is formed at an angle on the front surface of the cover.

11. the curved surface includes a first curved surface and a second curved surface having different curvatures; The display device according to claim 7 , wherein the knob is disposed so as to overlap the first curved surface and the second curved surface.

12. the concave curved surface includes a first curved surface and a second curved surface having different curvatures; The groove includes a first groove region having a first depth and a second groove region having a second depth; The first recessed groove region is disposed on the first curved surface, The second curved surface has the second groove region disposed thereon, The display device of claim 7 , wherein the first depth and the second depth are different.

13. the knob includes a body including a support portion coupled to the groove and a body portion disposed on the support portion, and a dial rotatably disposed on the body portion, the concave curved surface includes a first curved surface and a second curved surface having different curvatures; a first support region of the support portion is disposed on the first curved surface; a second support region of the support portion is disposed on the second curved surface; The display device according to claim 7 , wherein a length of the first support region is different from a length of the second support region.

14. the curved surface formed in a convex shape includes a third curved surface and a fourth curved surface having different curvatures, The groove includes a third groove region having a third depth and a fourth groove region having a fourth depth; the third curved surface has the third groove region disposed thereon; the fourth curved surface has the fourth groove region disposed thereon; The display device of claim 7 , wherein the third depth and the fourth depth are different.

15. the knob includes a body including a support portion coupled to the groove and a body portion disposed on the support portion, and a dial rotatably disposed on the body portion, the curved surface formed in a convex shape includes a third curved surface and a fourth curved surface having different curvatures, a third support region of the support portion is disposed on the third curved surface, a fourth support region of the support portion is disposed on the fourth curved surface, The display device according to claim 7 , wherein the third support region and the fourth support region have different lengths.

16. The knob includes a body coupled to the groove and a dial rotatably disposed on the body. The display device of claim 7 , wherein the body includes a support portion coupled to the groove and a body portion disposed on the support portion.

17. The cover further includes a key groove extending radially from the recessed groove, The display device according to claim 16, wherein the knob further includes a key protruding from the support portion to correspond to the key groove.

18. The knob further includes at least two centering ribs formed to protrude from the outer circumferential surface of the support portion, The display device according to claim 16 , wherein the centering rib is in point contact or line contact with the inner surface of the recessed groove.

19. The cover is made of a glass material, the display panel includes a substrate, a circuit layer disposed on the substrate to drive pixels, a light emitting element layer disposed on the circuit layer, an encapsulation layer on the circuit layer and the light emitting element layer, and a touch sensor layer disposed on the encapsulation layer; The display device of claim 7 , wherein the touch sensor layer includes an insulating layer made of an organic material in contact with the cover.

20. A display panel; a cover disposed on the front surface of the display panel; an adhesive member disposed in a recessed groove on the front surface of the cover; a knob coupled to the groove via the adhesive member; The groove is ring-shaped, the cover includes a curved surface formed to have a predetermined curvature; A display device, wherein the coupling direction of the knob is the same as or parallel to the normal to the curved surface.

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