Indication 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 Art

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

[0003] For example, since a light-emitting display device displays an image using self-luminous elements, a separate light source such as a backlight unit is not required, and the light-emitting display device can be configured to be thin and in various forms.

Summary of Invention

Problem to be Solved by the Invention

[0004] An object of the present invention is to provide a display device that supports a knob while guiding the knob to be positioned at a preset position by using a ring-shaped concave groove formed in a cover that covers a display panel.

[0005] An object of the present invention is to provide a display device including a cover and a knob, which is structurally improved to be usable for both flat-panel and curved display devices.

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

Means for Solving the Problems

[0007] An embodiment of the present invention includes 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, and a knob coupled to the groove via the adhesive member, wherein the groove is provided 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 engages with the groove, it is possible to prevent the knob from falling off while positioning it in a predetermined position.

[0009] According to the present invention, a coupling structure is provided which includes a ring-shaped groove formed in a cover that can be used for both flat-type and curved display devices, and a knob that engages with the groove. Thus, according to the present invention, by sharing the knob, low-power operation of the production process is possible, from the perspective of reducing production energy.

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

[0011] The various and beneficial advantages and effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view showing a display device according to one embodiment of the present invention. [Figure 2] Figure 2 is an exploded perspective view showing a display device according to one embodiment of the present invention. [Figure 3] Figure 3 is a bottom perspective view showing a display device according to one embodiment of the present invention. [Figure 4] Figure 4 is a cross-sectional view showing the arrangement of the display panel, cover, and knob of a display device according to one embodiment of the present invention. [Figure 5]Figure 5 is a block diagram schematically showing the configuration of a display device according to one embodiment of the present invention. [Figure 6] Figure 6 is a schematic diagram showing the cross-sectional structure of a display panel arranged in a display device according to one embodiment of the present invention. [Figure 7] Figure 7 is a schematic diagram showing the cross-sectional structure of a groove in a cover arranged in a display device according to one embodiment of the present invention. [Figure 8] Figure 8 shows the image displayed in area A of Figure 1. [Figure 9] Figure 9 is a perspective view showing a knob arranged in a display device according to one embodiment of the present invention. [Figure 10] Figure 10 is a cross-sectional view showing a knob arranged in a display device according to one embodiment of the present invention. [Figure 11] Figure 11 shows the relationship between the key groove of the cover and the key of the knob, which are arranged in a display device according to one embodiment of the present invention. [Figure 12] Figure 12 shows one embodiment of the centering rib of a knob arranged in a display device according to one embodiment of the present invention. [Figure 13] Figure 13 shows another embodiment of the centering rib for a knob arranged in a display device according to one embodiment of the present invention. [Figure 14] Figure 14 is a perspective view showing a display device according to another embodiment of the present invention. [Figure 15] Figure 15 is a cross-sectional view showing a display device according to another embodiment of the present invention. [Figure 16] Figure 16 is a cross-sectional view showing a display device according to yet another embodiment of the present invention. [Figure 17] Figure 17 is a perspective view showing a display device according to yet another embodiment of the present invention. [Figure 18] Figure 18 is a cross-sectional view showing a display device according to yet another embodiment of the present invention. [Figure 19] Figure 19 is a cross-sectional view showing a display device according to yet 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 view showing a cover having at least two curvatures in a display device according to still 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 view showing a cover having at least two curvatures in a display device according to still 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 view showing an example of use of the display device according to the 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, and the method of achieving them, will become apparent by reference to the embodiments described in detail below in conjunction with the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but may be configured in various different forms. These embodiments are merely provided to complete the disclosure of the present invention and to fully teach those having ordinary knowledge in the technical field to which the present invention pertains the scope of the invention, and the present invention is only defined by the scope of the claims.

[0014] In describing the present invention, if it is determined that a detailed description of related known technologies will obscure the gist of the present invention, the detailed description thereof will be omitted.

[0015] When words such as "equipped with," "possessed," "include," "have," "possess," and "consist of" are used as referred to herein, other parts may be added unless "only" or "solely" is used. When a component is expressed in the singular, it may be interpreted as plural unless otherwise explicitly stated.

[0016] When describing the positional relationship and mutual connection between two components, such as "on top of," "above," "below," "beside," "connect or couple," or "crossing or intersecting," one or more other components may be interposed between those components unless otherwise specified, such as "immediately" or "directly."

[0017] When describing temporal relationships such as "after," "following," "next," or "before," the timeline may be discontinuous unless "immediately" or "directly" is used.

[0018] While terms like "first," "second," etc., may be used to distinguish components, the function and structure of these components are not restricted by the ordinal numbers preceding them or by the names of the components.

[0019] The following embodiments can be partially or entirely combined or linked with one another, allowing for a variety of technically interconnected and driven configurations. Each embodiment can be implemented independently of the others, or they can be implemented together in a related manner.

[0020] Terms used in the embodiments herein (including technical and scientific terms) should be interpreted in a way that is generally understandable to a person of ordinary skill in the art to which the inventions herein pertain, unless otherwise clearly and specifically defined. Terms that are commonly used, such as those defined in dictionaries, should be interpreted in consideration of their meaning in the context of the relevant art.

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

[0022] The 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 may be used to operate the display device.

[0023] Because these knobs are attached to the cover on the display panel using adhesive tape, there is a problem in that the knobs are difficult to align to their predetermined positions. In addition, there is a problem in that the knobs may detach from the cover that surrounds the display panel due to external forces acting on them.

[0024] Therefore, there is a need for the development of a structurally improved display device that guides the user to position the knob in a predetermined location while preventing the knob from falling off due to external force.

[0025] A display device according to one embodiment of the present invention utilizes a ring-shaped groove formed in the cover and a knob coupled to the groove to position the knob in a preset position and prevent the knob from falling off due to external force. As a result, the display device according to one embodiment of the present invention improves the lifespan of the display device through improved durability, thereby enabling a reduction in greenhouse gas emissions from the perspective of reducing production energy.

[0026] A display device according to one embodiment of the present invention can improve the productivity of a display device by providing a coupling structure between a groove and a knob that can be used for both flat-type and curved-type (curved-type) display devices.

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

[0028] Referring to Figures 1 to 4, a display device 1 according to one embodiment of the present invention may include a display panel 100, a cover 200 disposed on the front of the display panel 100, an adhesive member 300 disposed in a recessed groove 210 formed in the front 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 have a predetermined depth and be formed in a ring shape including an opening. For example, the side on which the input image is displayed relative to the display panel 100 may be called the front of the display panel 100, and the side opposite to the front may be called the back. Also, as shown in Figures 1 to 3, the X-axis direction may mean the width direction or the lateral direction, the Y-axis direction may mean the length direction or the vertical direction, and the Z-axis direction may mean the up-down direction or the thickness direction. Note that the X-axis direction, Y-axis direction and Z-axis direction may be perpendicular to each other, but may also mean non-perpendicular and different directions. Accordingly, each of the X-axis, Y-axis, and Z-axis directions may be described as one of the first, second, and third directions. Furthermore, the planes extending in the X-axis and Y-axis directions may represent horizontal planes.

[0029] Furthermore, the display device 1 according to one embodiment of the present invention may include a substrate 500 disposed on the back 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 video. The display panel 100 may be formed in the shape of a plate having a predetermined thickness and may include a front surface on which the video is displayed and a back surface opposite to the front surface.

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

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

[0033] Referring to Figure 5, the display device 1 includes a display panel 100 in which multiple 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. Pixels include multiple subpixels SP with different colors. The drive circuit includes a data drive unit DD, a gate drive unit GD, and a timing controller TC that controls the gate drive unit GD and the data drive unit DD. In the display panel 100, the display area AA on which the input video is displayed may be a screen visible from the front of the display panel 100. Here, 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] The input image is displayed on the subpixels SP arranged in the display area AA of the display panel 100. For example, each subpixel 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 microLED (Micro Light Emitting Diode).

[0036] On the display panel 100, multiple scan lines SL and multiple data lines DL are arranged to intersect with each other. Each subpixel SP is connected to a scan line SL and a data line DL. Power lines, which are omitted in Figure 5, may be connected to each subpixel SP. On the display panel 100, a non-display area NA may be located outside the display area AA.

[0037] The gate drive unit GD supplies a scan signal to the scan wiring SL in response to a gate control signal provided by the timing controller TC. The gate drive unit GD may be located in the non-display area NA of the display panel 100, as shown in Figure 5. Alternatively, the gate drive unit GD may be located within the display area AA.

[0038] The data drive unit DD responds to the data control signal provided by the timing controller TC by converting the video data received from the timing controller TC into a reference compensation voltage and outputting a data voltage. The data voltage output from the data drive unit DD is supplied to the data wiring DL.

[0039] The timing controller TC aligns the video data input from an external source and supplies it to the data drive unit 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 / vertical synchronization signals. The timing controller TC supplies the gate control signal to the gate drive unit GD and the data control signal to the data drive unit DD to control the operating timing of the gate drive unit GD and the data drive unit DD.

[0040] Link wiring and pad electrodes for transmitting signals to subpixels SP of the display area AA may be arranged in the non-display area NA. In addition, one or more of the following may be arranged in the non-display area NA: a gate driver IC integrating the circuit of the gate drive unit GD, and a data driver IC integrating the circuit of the data drive unit DD.

[0041] Drive units such as the gate drive unit GD, data drive unit DD, and timing controller TC can be connected to the display panel 100 by various methods. For example, the gate drive unit GD can be placed in the non-display area NA using the GIP (Gate In Panel) method, or it can be placed between subpixels SP in the display area AA using the GIA (Gate In Active Area) method. For example, the data drive unit DD and timing controller TC can be formed on a separate flexible film and PCB (Printed Circuit Board), and the flexible film and PCB can be bonded to pad electrodes formed in the non-display area NA of the display panel 100 to electrically connect the data drive unit DD and timing controller TC to the display panel 100.

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

[0043] Referring to Figure 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 a sealing layer 140 disposed on the light-emitting element layer 130 and a touch sensor layer 150 formed on the sealing layer 140.

[0044] The panel substrate 110 may be made of an insulating material or a flexible material. For example, the panel substrate 110 may be made of 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, and gate drive units connected to gate lines. The wiring and circuit elements of the circuit layer 120 may include multiple insulating layers, two or more metal layers separated by the insulating layers, and an active layer containing a semiconductor material.

[0046] The light-emitting element layer 130 may include light-emitting elements driven by a pixel circuit. The light-emitting elements may include red light-emitting elements, green light-emitting elements, and blue light-emitting elements. In other embodiments, the light-emitting element layer 130 may include white light-emitting elements and a color filter. The light-emitting elements of the light-emitting element layer 130 may be covered by a protective layer including an organic film and a protective film.

[0047] The sealing layer 140 covers the light-emitting layer 130 so as to seal the circuit layer 120 and the light-emitting layer 130. For example, the sealing layer 140 may also be a multi-insulating film structure in which organic films and inorganic films are alternately stacked. In this case, the inorganic films block the penetration of moisture and oxygen. The organic films flatten the surface of the inorganic films. When organic films and inorganic films are stacked in multiple layers, the movement paths of moisture and oxygen become longer compared to a single layer, and the penetration of moisture and oxygen that would affect the light-emitting layer 130 can be effectively blocked.

[0048] The touch sensor layer 150 may include a capacitive touch sensor 151 that senses touch input based on the change in capacitance before and after 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 insulates the parts where the metal wiring pattern intersects and can flatten the surface of the touch sensor layer 150.

[0049] The insulating film 152 can be formed by a tomographic structure or a multilayer structure in which organic films and inorganic films are stacked in multiple layers.

[0050] The insulating film 152 can be formed as a single layer of organic material. When grooves 210 are formed on the front surface of the cover 200 through an etching process, the organic insulating film 152 can act as an etching stopper. For example, even if holes are formed in the cover 200 by the etching solution during the etching process to form the grooves 210, the organic insulating film 152 can prevent the touch sensor 151, circuit layer 120, light-emitting element layer 130, etc. from being damaged by the etching solution.

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

[0052] A plate may be further positioned on the back of the display panel 100.

[0053] The plate is attached to the back of the display panel 100 to support and protect it. The plate can be made of a material that is rigid yet has high thermal conductivity, such as a metal material such as aluminum (Al), copper (Cu), zinc (Zn), silver (Ag), gold (Au), iron (Fe), stainless steel (SUS), or Invar. This allows the plate to disperse the heat generated in the display panel 100, minimizing temperature differences across different regions of the display panel 100 while ensuring a uniform temperature distribution.

[0054] The circuit board 500 may be placed on the back of the display panel 100. If a plate is placed on the back of the display panel 100, the circuit board 500 may be placed on the back 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's main control module, a communication device, a device for driving the display panel 100, and so on. Furthermore, the substrate 500 may include internal circuits and various other active and passive elements. 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 the pad electrodes of the display panel 100 to the 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 may be, but is not limited to, a flexible printed circuit board (FPCB) or a chip-on-film (COF) on which an IC integrating the circuits of a data drive unit DD and / or a gate drive unit GD is mounted. The flexible film 600 is sometimes called a flexible circuit film.

[0057] The cover 200 is positioned in front of the display panel 100 to protect it. The cover 200 can be attached to the front of the display panel 100 using an adhesive. Here, the back of the cover 200 represents one side of the cover 200 that faces the front of the display panel 100, and the front of the cover 200 is the side opposite to the back of the cover 200.

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

[0059] Furthermore, the cover 200 may be made of a transparent material. This allows light emitted from the display panel 100 to pass through the cover 200. Here, the cover 200 may be a cover glass made of glass material.

[0060] Furthermore, the cover 200 may include a light-shielding layer, such as a black matrix, positioned at its edges, which can prevent components positioned in the non-display area NA from being exposed to the outside. For example, the light-shielding layer may be positioned at the back edge of the cover 200 so that a portion of a flexible film 600, which is positioned to overlap with the non-display area NA, is not visible from the outside.

[0061] Figure 7 schematically shows the cross-sectional structure of a groove in a cover arranged in a display device according to one embodiment of the present invention. As shown in Figures 7(a) and 7(b), the groove formed in the cover can be configured in various ways depending on the surface processing method.

[0062] Referring to Figures 2 and 7, the cover 200 may include a ring-shaped groove 210 formed as a recess on the front surface of the cover 200. The groove 210 may include two inner surfaces 2101 that are spaced apart from each other, and a bottom surface 2102 that connects the two inner surfaces 2101. In this case, the inner surfaces 2101 may include a first inner surface 2101a that is located on the inside and a second inner surface 2101b that is located on the outside, and the first inner surface 2101a and the second inner surface 2101b may be spaced apart from each other. Here, "inside" refers to the direction toward the center C of the groove 210, and "outside" refers to the direction opposite to the inside.

[0063] Because the groove 210 is formed in a ring shape, the knob 400 that engages with the groove 210 can be guided to a preset engagement position. For example, since the display device 1 according to the present invention has a ring-shaped groove 210, the knob 400 can be guided to a preset position without the need to use a separate alignment mark and 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] Furthermore, the grooves 210 can be formed through various surface treatments applied to the front surface of the cover 200. For example, the grooves 210 can be formed through an etching process using an etching solution, a cutting process using a cutting tool such as an end mill, or a laser processing process. In this case, since the cover 200 is made of glass material and the insulating film 152 of the touch sensor layer 150 is made of organic material, the grooves 210 of the cover 200 can be formed through an etching process. For example, the cover 200 can be etched by spraying an etching solution onto the cover 200 to which the mask is joined, or by dipping the cover 200 in a tank filled with etching solution. As a result, the inner surface 2101 of the grooves 210 can be formed to have a tapered surface or rounded corners.

[0066] Figure 8 shows the image displayed in area A of Figure 1.

[0067] Referring to Figure 8, the image displayed inside the ring-shaped groove 210 and the image displayed outside the groove 210 may be different. For example, a user of the display device 1 according to an embodiment of the present invention can control the drive 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 with respect to the ring-shaped groove 210. Thus, the display device according to an embodiment of the present invention can be configured to display different images inside the knob 400 and outside the knob 400, for the convenience of the user.

[0068] The adhesive member 300 can be positioned inside the groove 210 to fix one side of the knob 400. For example, the support portion 411 of the knob 400 can be fixed to the cover 200 by the adhesive member 300. That is, after positioning the adhesive member 300 inside the groove 210, the support portion 411 can be fixed to the cover 200 by positioning its lower end inside the groove 210. In this case, since the width of the support portion 411 is smaller than the width of the groove 210, a space can be formed between the inner surface 2101 forming the groove 210 and the support portion 411.

[0069] The adhesive member 300 may be provided as an adhesive tape or a liquid adhesive. For example, liquid adhesives such as epoxy or resin can be used as the adhesive member 300.

[0070] Figure 9 is a perspective view showing a knob arranged in a display device according to one embodiment of the present invention, and Figure 10 is a cross-sectional view showing a knob arranged in a display device according to one embodiment of the present invention.

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

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

[0073] The body portion 412 may be formed in a ring shape and may be detachably positioned on the upper part of the support portion 411. For example, the support portion 411 can be detachably connected to the body portion 412 by using a fitting-type coupling structure, adhesive member, or fastening member between the support portion 411 and the body portion 412. This makes it possible to improve the productivity of the display device by sharing the body portion 412 and the dial 420, even if the shape of the cover 200 arranged on the flat plate type display device or the curved display device is different. Here, the display device 1 according to the embodiment of the present invention is given as an example in which the support portion 411 and the body portion 412 are detachably coupled, but it is not necessarily limited to this. The support portion 411 and the body portion 412 can also be formed integrally.

[0074] The dial 420 may be rotatably positioned on the body 410 and may be formed in a ring shape. This allows the image displayed on the display panel 100 to 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-panel display panel 100.

[0075] Figure 11 shows the relationship between the key groove of the cover and the key of the knob, which are arranged in a display device according to one embodiment of the present invention.

[0076] Referring to Figure 11, the cover 200 arranged in the display device 1 according to an embodiment of the present invention further includes a keyway 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 keyway 220.

[0077] The keyway 220 may be formed to communicate with the groove 210. This allows the adhesive filling the groove 210 to also fill the keyway 220.

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

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

[0080] Furthermore, the key 430 can be positioned inside the keyway 220 and fixed by the adhesive member 300. This connection between the keyway 220 and the key 430 prevents the body 410 from rotating and guides the knob 400 so that it can be engaged in a preset position.

[0081] Therefore, the display device 1 according to the embodiment of the present invention can respond to a load applied to the knob 400 in the horizontal direction via the connection between the groove 210 and the support portion 411, and can respond to a load that rotates the body 410 with respect to the center of the groove 210 via the connection between the keyway 220 and the key 430.

[0082] Figure 12 shows one embodiment of the centering rib for a knob arranged in a display device according to one embodiment of the present invention, and Figure 13 shows another embodiment of the centering rib for a knob arranged in a display device according to one embodiment of the present invention.

[0083] Referring to Figures 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 and 440b may be formed to protrude radially from the outer circumferential surface of the support portion 411.

[0085] Furthermore, at least two of the centering ribs 440a and 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 and 440b may be arranged, and when two centering ribs 440a and 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. Also, when four centering ribs 440a and 440b are arranged, the centering ribs 440a and 440b may be arranged at 90-degree intervals along the circumferential direction.

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

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

[0088] Furthermore, the centering ribs 440a and 440b can make line contact or point contact with the second inner surface 2101b that forms the groove 210. That is, by minimizing contact with the second inner surface 2101b through line contact or point contact with the second inner surface 2101b, the contact area with the adhesive can be maximized. This can improve the adhesion between the knob 400 and the adhesive.

[0089] As shown in Figure 12, the centering rib 440a may be formed in a semi-cylindrical shape with a predetermined radius. This allows the centering rib 440a to make line contact with the second inner surface 2101b. In this case, the adhesive may be positioned to cover the upper surface 441 of the centering rib 440a. This can further improve the adhesion between the knob 400 and the adhesive. Furthermore, the curing of the adhesive can further improve the fixing force of the knob 400 to the cover 200.

[0090] As shown in Figure 13, the centering rib 440b can also be formed in a hemispherical shape. This causes the centering rib 440b to make point contact with the second inner surface 2101b that forms the groove 210.

[0091] The knob 400 of the flat-plate display device 1 described above can be used with a curved display device. Here, the curved display device may include a concave-type display device that includes a recessed curved surface and a convex-type display device that includes a convex curved surface.

[0092] Figure 14 is a perspective view showing a display device according to another embodiment of the present invention. Figure 15 is a cross-sectional view showing a display device according to another embodiment of the present invention, showing the arrangement relationship between the knob and the cover, and the enlarged portion of Figure 15 is a conceptual diagram showing the technical features of the display device according to another embodiment of the present invention. Figure 16 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, showing another arrangement relationship between the knob and the cover, and the enlarged portion of Figure 16 is a conceptual diagram showing the technical features of the display device according to another embodiment of the present invention. Here, the concave-type display device shown in Figure 15 may be referred to as the display device according to the second embodiment, and the concave-type display device shown in Figure 16 may be referred to as the display device according to the 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 devices 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 positioned 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] Referring to Figures 14 to 16, another embodiment of the present invention, the display device 1a, may include a display panel 100a, a cover 200a disposed in front of the display panel 100a and including a recessed curved surface formed to have a predetermined curvature, an adhesive member 300 disposed in a recessed groove 210 formed in front 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. Furthermore, another embodiment of the present invention, the display device 1a, may include a keyway 220, a key 430 formed to correspond to the keyway 220, and centering ribs 440a, 440b, etc.

[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, a sealing layer 140 disposed on the light-emitting element layer 130, and a touch sensor layer 150 formed on the sealing layer 140.

[0098] The cover 200a includes a recessed curved surface formed to have a predetermined curvature, which may be the front surface of the cover 200a. This may include a virtual tangent line TL1 that is tangent to the curved surface of the cover 200a.

[0099] Depending on the position where the concave-type display device 1a is placed in the vehicle, the field of view of the user viewing the knob 400 will differ.

[0100] By adjusting the arrangement of the grooves 210 to take into account the position where the concave-type display device 1a is placed, the user's ability to recognize the knob 400 can be improved.

[0101] Referring to Figure 15, in the display device 1a according to the second embodiment, a virtual straight line L1 passing through the upper surface of the knob 400 may be arranged parallel to a virtual tangent line TL1 tangent to the curved surface of the cover 200a. Thus, a virtual normal line NL1 perpendicular to the tangent line TL1 may be perpendicular to the virtual straight line L1 passing through the upper surface of the knob 400. Here, the upper surface of the knob 400 may be the upper 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 NL1.

[0103] Referring to Figure 16, in the display device 1a according to the third embodiment, a virtual straight line L1 passing through the upper surface of the knob 400 may be positioned non-parallel to a virtual tangent line TL1 that is tangent to the curved surface of the cover 200a. As a result, there exists an intersection point where the virtual straight line L1 and the virtual tangent line TL1 meet. The normal line NL1 perpendicular to the tangent line TL1 may be positioned such that it has a predetermined first inclination angle θ1 with respect to the coupling direction CD in which the support portion 411 of the knob 400 connects with the groove 210. That is, since the groove 210 of the cover 200a is positioned at an inclination with respect to the normal line NL1, an acute angle can be formed between the coupling direction CD of the knob 400 and the normal line NL1. By connecting the knob 400 to the groove 210 formed at an inclination on the front surface of the cover 200a, the viewing position in which the knob 400 is recognized can be adjusted, thereby improving user convenience.

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

[0105] Referring to Figures 1 and 17, when comparing the display device 1 according to the first embodiment with the display devices 1b according to the fourth and fifth embodiments, the cover 200b of the display devices 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 positioned 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] Referring to Figures 17 to 19, a display device 1b according to yet another embodiment of the present invention may include a display panel 100b, a cover 200b disposed in front of the display panel 100b and including a bulging curved surface formed to have a predetermined curvature, an adhesive member 300 disposed in a recessed groove 210 formed in the front 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 the shape of a ring having a predetermined depth. Furthermore, a display device 1b according to yet another embodiment of the present invention may include a keyway 220, a key 430 formed to correspond to the keyway 220, and centering ribs 440a, 440b, etc.

[0108] The display panel 100b may include a curved surface that corresponds to the curved surface of the 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, a sealing layer 140 disposed on the light-emitting element layer 130, and a touch sensor layer 150 formed on the sealing layer 140.

[0110] The cover 200b includes a curved surface formed to have a predetermined curvature, which may be the front surface of the cover 200b. This may include a virtual tangent line TL2 that is tangent to the curved surface of the cover 200b.

[0111] Depending on the position where the convex-type display device 1b is placed in the vehicle, the field of view of the user viewing the knob 400 will differ.

[0112] By adjusting the arrangement of the recessed grooves 210, taking into account the position where the convex-type display device 1b is placed, the user's convenience in recognizing the knob 400 can be improved.

[0113] Referring to Figure 18, in the display device 1b according to the fourth embodiment, a virtual straight line L2 passing through the upper surface of the knob 400 may be positioned parallel to a virtual tangent line TL2 tangent to the curved surface of the cover 200b. Thus, a virtual normal line NL2 perpendicular to the tangent line TL2 may be perpendicular to the virtual straight line L2 passing through the upper surface of the knob 400. Here, the upper surface of the knob 400 may be the upper 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 NL2.

[0115] Referring to Figure 19, in the display device 1b according to the fifth embodiment, a virtual straight line L2 passing through the upper surface of the knob 400 may be positioned non-parallel to a virtual tangent line TL2 tangent to the curved surface of the cover 200b. As a result, there exists an intersection point where the virtual straight line L2 and the virtual tangent line TL2 meet. The normal line NL2 perpendicular to the tangent line TL2 may be positioned such that it has a predetermined second inclination angle θ2 with respect to the coupling direction CD in which the support portion 411 of the knob 400 connects with the groove 210. That is, since the groove 210 of the cover 200b is positioned at an inclination with respect to the normal line NL2, an acute angle can be formed between the coupling direction CD of the knob 400 and the normal line NL2. As a result, the knob 400 can connect to the groove 210 formed at an inclination on the front surface of the cover 200b, improving the convenience of the user in recognizing the knob 400.

[0116] The curved display devices described above may include concave-type and convex-type display devices having at least two curvatures.

[0117] By adjusting at least one of the depth of the groove and the length of the knob support portion, taking into consideration the position of the knob placed on a concave 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] Figure 20 is a perspective view showing a display device according to yet another embodiment of the present invention, and Figure 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 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, showing the arrangement relationship between the knob and the cover, and the enlarged portion of Figure 22 is a conceptual diagram showing the technical features of the display device according to another embodiment of the present invention. Figure 23 is a cross-sectional view showing a display device according to yet another embodiment of the present invention, showing another arrangement relationship between the knob and the cover, and the enlarged portion of Figure 23 is a conceptual diagram showing the technical features of the display device according to another embodiment of the present invention. Here, the concave type display device shown in Figure 22 may be referred to as the sixth embodiment display device, and the concave type display device shown in Figure 23 may be referred to as the seventh embodiment display device.

[0119] Referring to Figures 14 and 20 to 23, when comparing the display devices 1a according to the second and third embodiments with the display devices 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 in accordance with the at least two recessed curved surfaces CS1 and CS2.

[0120] Referring to Figures 20 and 21, the curved surface CS of the cover 200a may include a first curved surface CS1 and a second curved surface CS2 with different curvatures. The first curved surface CS1 and the second curved surface CS2 may be positioned to overlap with the knobs 400 and 400a. In this case, the imaginary boundary line located at the point where the first curved surface CS1 and the second curved surface CS2 meet may, but is not necessarily limited to, passing through the center of the groove 210a. Here, the curvature (1 / R1) of the first curved surface CS1 and the curvature (1 / R2) of the second curved surface CS2 are different. For example, the curvature (1 / R1) of the first curved surface CS1 may be larger than the curvature (1 / R2) of the second curved surface CS2. The curvature center C1 of the first curved surface CS1 and the curvature center C2 of the second curved surface CS2 are positioned closer to the cover 200a than to the display panel 100a.

[0121] Referring to Figures 20 to 23, another embodiment of the present invention, the display device 1c, may include a display panel 100a, a cover 200a disposed in front of the display panel 100a and including a recessed curved surface CS, a recessed groove 210 formed in front of the cover 200a, an adhesive member 300 disposed in 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. Furthermore, yet another embodiment of the present invention, the display device 1c, may include a keyway 220, a key 430 formed to correspond to the keyway 220, and centering ribs 440a, 440b, etc.

[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, a sealing layer 140 disposed on the light-emitting element layer 130, and a touch sensor layer 150 formed on the sealing 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, taking into account 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 Figure 22, the display device 1c according to the sixth embodiment may include a display panel 100a, a cover 200a positioned in front of the display panel 100a and including at least two curved surfaces CS1, CS2 with different curvatures, an adhesive member 300 positioned in a recessed groove 210a formed in the front 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 with 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 even if the length of the support portion 411 is constant, the knob 400 can be positioned at an inclination corresponding to the depth of the groove 210a.

[0128] If the curvature (1 / R1) of the first curved surface CS1 is greater than the curvature (1 / R2) of the second curved surface CS2, then 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 as you move from the first groove region 211 to the second groove region 212. Here, the first groove region 211 represents the region where the groove 210a is deepest, and the second groove region 212 represents the region where the groove 210a is shallowest.

[0129] Therefore, the display device 1c according to the sixth embodiment can adjust the angle of the knob 400 by adjusting the depth of the groove 210a so that the upper surface of the knob 400 is easily recognized by the user. For example, in curved surfaces CS1 and CS2 having at least two curvatures, the user's ability to recognize the knob 400 can be improved by making the depth of the groove 210a on the curved surface with greater curvature deeper than the depth of the groove 210a on the curved surface with less curvature.

[0130] Referring to Figure 23, the display device 1c according to the seventh embodiment may include a display panel 100a, a cover 200a positioned in front of the display panel 100a and including at least two curved surfaces CS1, CS2 with different curvatures, an adhesive member 300 positioned in a recessed groove 210 formed in the front of the cover 200a, and a knob 400a that is 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 positioned on the body 410. The body 410 may include a support portion 413 coupled to the groove 210, and a body portion 412 positioned on the support portion 413.

[0132] The support portion 413 may be formed in the shape of a sleeve, cylinder, or pipe having a predetermined length, and the length of the support portion 413 may increase from one side to the other. As a result, 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 such that the lengths of one side and the other side are different. 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 formed to be greater than the curvature (1 / R2) of the second curved surface CS2, then the first length H1 in the first support region 413a is formed to be smaller than the second length H2 in 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 represents the region where the length of the support portion 413 is shortest, and the second support region 413b represents the region where the length of the support portion 413 is longest.

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

[0135] In yet another embodiment of the present invention, the display device 1c shown in Figure 22 adjusts the depth of the groove 210a as an example, and the display device 1c shown in Figure 23 adjusts the length of the support portion 413 as an example, but is not necessarily limited thereto. For example, both the depth of the groove 210a and the length of the support portion 413 can be adjusted to correspond to at least two curved surfaces CS1 and CS2 with different curvatures.

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

[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 bulging 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 in accordance with the at least two bulging curved surfaces CS3 and CS4.

[0138] Referring to Figures 24 and 25, the curved surface CS of the cover 200a may include a third curved surface CS3 and a fourth curved surface CS4 with different curvatures. The third curved surface CS3 and the fourth curved surface CS4 may be positioned to overlap with the knobs 400 and 400a. In this case, the imaginary boundary line located at the point where the third curved surface CS3 and the fourth curved surface CS4 meet may, but is not necessarily limited to, passing through the center of the groove 210a. Here, the curvature (1 / R3) of the third curved surface CS3 and the curvature (1 / R4) of the fourth curved surface CS4 are different. For example, the curvature (1 / R3) of the third curved surface CS3 may be larger than the curvature (1 / R4) of the fourth curved surface CS4. The curvature center C3 of the third curved surface CS3 and the curvature center C4 of the fourth curved surface CS4 are positioned closer to the display panel 100b than to the cover 200b.

[0139] Referring to Figures 24 to 27, another embodiment of the present invention, the display device 1d, may include a display panel 100b, a cover 200b positioned in front of the display panel 100b and including a bulging curved surface CS, a recessed groove 210 formed in the front surface of the cover 200b, an adhesive member 300 positioned in 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. Furthermore, yet another embodiment of the present invention, the display device 1d, may include a keyway 220, a key 430 formed to correspond to the keyway 220, and centering ribs 440a, 440b, etc.

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

[0141] 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, a sealing layer 140 disposed 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 bulging 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, taking into account 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 Figure 26, the display device 1d according to the eighth embodiment may include a display panel 100b, a cover 200b positioned in front of the display panel 100b and including at least two curved surfaces CS3, CS4 with different curvatures, an adhesive member 300 positioned in a recessed groove 210a formed in the front 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 with different depths on one side and 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 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] If the curvature (1 / R3) of the third surface CS3 is greater than the curvature (1 / R4) of the fourth surface CS4, then 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 can increase from the third groove region 213 to the fourth groove region 214. Here, the third groove region 213 represents the region where the depth of the groove 210a is shallowest, and the fourth groove region 214 represents 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 angle of the knob 400 by adjusting the depth of the groove 210a so that the upper surface of the knob 400 is easily recognized by the user. For example, in curved surfaces CS3 and CS4 having at least two curvatures, the depth of the groove 210a on the side of the curved surface with greater curvature is made shallower than the depth of the groove 210a on the side of the curved surface with less curvature, thereby improving the user's ability to recognize the knob 400.

[0148] Referring to Figure 27, the display device 1d according to the ninth embodiment may include a display panel 100b, a cover 200b positioned in front of the display panel 100b and including at least two curved surfaces CS3, CS4 with different curvatures, an adhesive member 300 positioned in a recessed groove 210 formed in the front 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 positioned on the body 410. The body 410 may include a support portion 413 coupled to the groove 210, and a body portion 412 positioned on the support portion 413.

[0150] The support portion 413 may be formed in the shape of a sleeve, cylinder, or pipe having a predetermined length, and the length of the support portion 413 may decrease from one side to the other. As a result, 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 such that its length differs from that of the other side. 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 surface CS3 is formed to be greater than the curvature (1 / R4) of the fourth surface CS4, then the third length H3 in the third support region 413c is formed to 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 represents the region where the support portion 413 is longest, and the fourth support region 413d represents the region where the support portion 413 is shortest.

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

[0153] In yet another embodiment of the present invention, the display device 1d shown in Figure 26 adjusts the depth of the groove 210a as an example, and the display device 1d shown in Figure 27 adjusts the length of the support portion 413 as an example, but is not necessarily limited thereto. For example, both the depth of the groove 210a and the length of the support portion 413 can be adjusted to correspond to at least two curved surfaces CS3 and CS4 with different curvatures.

[0154] Figure 28 shows an example of the use of a display device according to one embodiment of the present invention, in which the display device is arranged inside a vehicle.

[0155] As shown in Figure 28, the display devices 1, 1a, 1b, 1c, and 1d according to embodiments of the present invention may be placed on at least a portion of the vehicle's dashboard. Here, the vehicle's dashboard may represent a portion of the vehicle's components located in front of the front seats (e.g., driver's seat, passenger seat). The vehicle's dashboard may also contain input configurations for operating various functions provided to the vehicle (e.g., air conditioning, audio system, navigation system).

[0156] Display devices 1, 1a, 1b, 1c, and 1d are positioned on the vehicle's dashboard and can function as input units for operating at least some of the vehicle's various functions. Furthermore, display devices 1, 1a, 1b, 1c, and 1d can provide various vehicle-related information, such as vehicle operation information (e.g., current vehicle speed, fuel level, mileage) and information about vehicle components (e.g., tire damage level).

[0157] Furthermore, the display devices 1, 1a, 1b, 1c, and 1d may be positioned between the driver's seat and the passenger seat in the front of the vehicle. Users of the display devices 1, 1a, 1b, 1c, and 1d may include, but are not limited to, the driver of the vehicle and the 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 Figure 28 may represent only a portion of the display. The display devices 1, 1a, 1b, 1c, and 1d shown in Figure 28 may represent the display panel with the knob attached, among the various components included in the display device 1. Components of the display devices 1, 1a, 1b, 1c, and 1d other than those shown in Figure 28 may be implemented inside the vehicle.

[0159] The display device installed in a vehicle is merely an example to illustrate 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 can be applied to mobile devices, medical devices, in-vehicle navigation systems, in-vehicle display devices, wallpaper devices, and home appliances. Furthermore, the display device of the present invention can be applied to organic light-emitting lighting devices or inorganic light-emitting lighting devices.

[0160] A brief description of the embodiments of the present invention described above is as follows.

[0161] An embodiment of the present invention includes 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, and a knob coupled to the groove via the adhesive member, wherein the groove is formed in a ring shape.

[0162] 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, and the body may include a support portion coupled to the groove and a body portion disposed on the support portion.

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

[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 circumferential surface of the support portion, wherein the centering ribs can make 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 made of glass material, and the display panel includes a substrate, a circuit layer disposed on the substrate for driving pixels, a light-emitting layer disposed on the circuit layer, a sealing layer covering the circuit layer and the light-emitting layer, and a touch sensor layer disposed on the sealing layer, wherein the touch sensor layer may include an insulating film of an organic material that contacts the cover.

[0166] A display device according to an embodiment of the present invention includes 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, 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 may be positioned at an inclination with respect to a predetermined angle with respect to the normal of the curved surface.

[0167] 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 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 a display device according to an embodiment of the present invention, the groove may be formed at an angle on the front surface of the cover.

[0170] In a display device according to an embodiment of the present invention, the curved surface includes a first curved surface and a second curved surface having different curvatures, and the knob may be arranged so as 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 comprising 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, wherein the concave curved surface comprises a first curved surface and a second curved surface having different curvatures, the first support region of the support portion being disposed on the first curved surface and the second support region of the support portion being disposed on the second curved surface, and the lengths of the first support region and the second support region may be different.

[0173] In a display device according to an embodiment of the present invention, the convex curved surface includes a third curved surface and a fourth curved surface having different curvatures, and 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 comprising 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, wherein the convex curved surface includes a third curved surface and a fourth curved surface having different curvatures, the third support region of the support portion being disposed on the third curved surface and the fourth support region of the support portion being disposed on the fourth curved surface, and the lengths of the third support region and the fourth support region may be different.

[0175] 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, and the body may include a support portion coupled to the groove and a body portion disposed on the support portion.

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

[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 circumferential surface of the support portion, wherein the centering ribs can make 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 glass material, and the display panel includes a substrate, a circuit layer disposed on the substrate for driving pixels, a light-emitting layer disposed on the circuit layer, a sealing layer covering the circuit layer and the light-emitting layer, and a touch sensor layer disposed on the sealing layer, wherein the touch sensor layer may include an insulating film of an organic material that contacts the cover.

[0179] As described above, the contents of the specification, which describe the problem 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 rights of the claims is not limited by the matters described in the specification.

[0180] While embodiments of the present invention have been described in more detail above with reference to the attached drawings, the present invention is not necessarily limited to these embodiments and can be implemented in various modified ways without departing from the technical concept of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. Accordingly, the embodiments described above should be understood to be illustrative and non-limiting in all respects. The scope of protection of the present invention must be interpreted by the claims, and all technical concepts within an equivalent scope should be interpreted as being included in the scope of the rights of the present invention. [Explanation of symbols]

[0181] 1, 1a, 1b, 1c, 1d: Display device 100, 100a, 100b: Display panel 110: Panel substrate 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. Display panel and, A cover positioned on the front of the aforementioned display panel, An adhesive member is placed in a recessed groove on the front surface of the cover, Includes a knob that is coupled to the groove via the adhesive member, The display panel includes a substrate, a circuit layer disposed on the substrate for driving pixels, a light-emitting layer disposed on the circuit layer, a sealing layer on the circuit layer and the light-emitting layer, and a touch sensor layer disposed on the sealing layer. The cover is placed on the touch sensor layer, The groove located in the cover is ring-shaped, The cover includes a curved surface formed to have a predetermined curvature, The knob is positioned at an angle such that it has a predetermined angle with respect to the normal of the curved surface. The knob includes a body that fits into the groove and a dial that is rotatably disposed on the body. The body includes a support portion that connects to the groove and a body portion that is positioned on the support portion. A display device in which the length of the support portion increases from one side to the other.

2. The display device according to claim 1, wherein the depth of the groove decreases from one side to the other.

3. The display device according to claim 1, wherein the groove is formed at an angle on the front surface of the cover.

4. The aforementioned surface includes a first surface and a second surface having different curvatures. The display device according to claim 1, wherein the knob is arranged to overlap with the first curved surface and the second curved surface.

5. 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. A first groove region is arranged on the first curved surface, The second concave groove region is positioned on the second curved surface, The display device according to claim 1, wherein the first depth and the second depth are different.

6. The knob includes a body which includes a support portion which is coupled to the groove and a body portion which is disposed on the support portion, and a dial which is rotatably disposed on the body portion. The concave curved surface includes a first curved surface and a second curved surface having different curvatures. The first support region of the support portion is positioned on the first curved surface. The second support region of the support portion is positioned on the second curved surface. The display device according to claim 1, wherein the length of the first support region is different from the length of the second support region.

7. The convex-shaped curved surface includes a third and a fourth curved surface with different curvatures. The groove includes a third groove region having a third depth and a fourth groove region having a fourth depth. The third concave groove region is arranged on the third curved surface. The fourth concave groove region is arranged on the fourth curved surface, The display device according to claim 1, wherein the third depth and the fourth depth are different.

8. The curved surface formed in a convex shape includes a third curved surface and a fourth curved surface having different curvatures, The third support region of the support portion is positioned on the third curved surface. The fourth support region of the support portion is positioned on the fourth curved surface. The display device according to claim 1, wherein the length of the third support region is different from the length of the fourth support region.

9. The cover further includes a keyway extending radially from the groove, The display device according to claim 1, wherein the knob further includes a key protruding from the support portion to correspond to the keyway.

10. 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 1, wherein the centering rib makes point contact or line contact with the inner surface of the groove.

11. The aforementioned cover is made of glass material, The display device according to claim 1, wherein the touch sensor layer includes an insulating film made of an organic material that contacts the cover.

12. Display panel and, A cover positioned on the front of the aforementioned display panel, An adhesive member is placed in a recessed groove on the front surface of the cover, Includes a knob that is coupled to the groove via the adhesive member, The display panel includes a substrate, a circuit layer disposed on the substrate for driving pixels, a light-emitting layer disposed on the circuit layer, a sealing layer on the circuit layer and the light-emitting layer, and a touch sensor layer disposed on the sealing layer. The cover is placed on the touch sensor layer, The groove located in the cover is ring-shaped, The cover includes a curved surface formed to have a predetermined curvature, The coupling direction of the knob is the same as or parallel to the normal of the curved surface. The knob includes a body that fits into the groove and a dial that is rotatably disposed on the body. The body includes a support portion that connects to the groove and a body portion that is positioned on the support portion. A display device in which the length of the support portion increases from one side to the other.

Images