Display device

Abstract

A display device is disclosed, comprising: a display panel; a heat sink on the bottom of the display panel; and a guide seat on the bottom of the heat sink, wherein the heat sink includes a first base and a first protrusion protruding toward the guide seat, and the guide seat includes a second base and a plurality of second protrusions protruding from an end of the second base.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2022-0187613, filed on December 28, 2022, the entire contents of which are incorporated herein by reference for all purposes. Technical Field

[0003] This invention relates to a display device. Background Technology

[0004] With the advent of the information age, the field of display technology, which visually represents electrical information signals, has recently experienced rapid development, leading to the development of various display devices with superior performance, such as thinness, light weight, and low power consumption.

[0005] Examples of display devices include liquid crystal display (LCD) devices, organic light-emitting diode (OLED) display devices, quantum dot display devices, etc.

[0006] This type of display device has recently been widely used in vehicles. Summary of the Invention

[0007] One aspect of the present invention is to provide a display device that is improved in maintaining its curvature.

[0008] According to an embodiment of the present invention, a display device includes: a display panel; a heat sink on the bottom of the display panel; and a guide seat on the bottom of the heat sink, wherein the heat sink includes a first base and a first protrusion protruding toward the guide seat, and the guide seat includes a second base and a second protrusion protruding from an end of the second base.

[0009] According to another embodiment of the present invention, a display device includes: a curved heat sink; and a curved guide seat on the bottom of the curved heat sink, wherein the curved heat sink includes a first base and a first protrusion protruding toward the curved guide seat, and the curved guide seat includes a second base and a second protrusion protruding from an end of the second base.

[0010] Details of other implementation methods are included in the detailed description and accompanying drawings.

[0011] According to the implementation method, the display device is improved in maintaining its curvature. This reduces alignment issues when the back cover and guide seat are fastened together.

[0012] The effects of the implementation methods are not limited to those described above, and various effects are further included in this disclosure. Attached Figure Description

[0013] Figure 1 This is a perspective view of a display device according to an embodiment.

[0014] Figure 2 This is a cross-sectional view of the display panel according to the embodiment.

[0015] Figure 3 This is an exploded perspective view of a display device according to an embodiment.

[0016] Figure 4 It is along Figure 1 The sectional view of the display device is taken by line A-A'.

[0017] Figure 5 This is a perspective view showing the rear side of a display device according to an embodiment.

[0018] Figure 6 It is shown Figure 5 A plan view of the rear side of the display device.

[0019] Figure 7 This is an exploded perspective view of the heat sink and guide seat according to the embodiment.

[0020] Figure 8 yes Figure 7 An enlarged perspective view of region B in the image.

[0021] Figure 9 yes Figure 7 An enlarged perspective view of region C in the image.

[0022] Figure 10 It is shown Figure 7 A perspective view of the heat sink and guide seat joined together.

[0023] Figure 11 yes Figure 10 An enlarged perspective view of region D in the image.

[0024] Figure 12 and 13 This is a view used to describe the engagement between the heat sink and the guide seat according to the embodiment.

[0025] Figure 14 yes Figure 13 A magnified view of region E in the image.

[0026] Figure 15 This is a perspective view of a heat sink according to another embodiment.

[0027] Figure 16 This is a perspective view of a guide seat according to another embodiment.

[0028] Figure 17 yes Figure 16 A magnified view of region F in the image.

[0029] Figure 18 This is a view showing the chamfered surface of the guide seat according to yet another embodiment. Detailed Implementation

[0030] The advantages and features of the invention, as well as its implementation methods, will be more readily understood by referring to the embodiments described in detail below with reference to the accompanying drawings. However, the invention can be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein; rather, these exemplary embodiments are provided so that the disclosure of the invention will be clear and complete and will fully convey the inventive concept to those skilled in the art, and the invention will be defined only by the appended claims.

[0031] The shapes, dimensions, proportions, angles, quantities, etc., shown in the accompanying drawings for the purpose of describing embodiments of the invention are merely examples, and therefore the invention is not limited thereto. Throughout the specification, the same reference numerals refer to the same components, and detailed descriptions of well-known technologies may be omitted in this invention to avoid obscuring the subject matter. When terms such as "comprising," "having," or "including" are used in this specification, it should be understood that additional elements or steps may be included unless "only" is specifically used. Unless otherwise expressly stated, when components are referred to in the singular form, the plural form is intended to be included as well.

[0032] When interpreting elements, even if not explicitly described, they should be interpreted as including error margin.

[0033] When describing positional relationships, such as when the relationship between two parts is described as "on top of", "above", "below", "next to", etc., one or more other parts may be located between the two parts unless "immediately following" or "directly" is used.

[0034] When a device or layer is referred to as being "on" another device or layer, it includes situations where a device or layer is directly located on the other device or layer, or where another device or layer is inserted between the two devices or layers.

[0035] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from other components. Therefore, within the technical meaning of this invention, the first component mentioned below can be the second component.

[0036] Throughout the specification, similar reference numerals refer to similar components.

[0037] The dimensions and thicknesses of each component shown in the figures are presented for ease of description and are not intended to limit the invention.

[0038] The features of the various embodiments of the present invention can be partially or entirely combined or combined according to various interlocking and interoperable technical methods that are obvious to those skilled in the art. Each embodiment can be implemented independently or in combination with related embodiments.

[0039] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] In this invention, the term "display device" is used in a narrow sense to refer to display devices such as liquid crystal modules (LCMs), organic light-emitting diode (OLED) modules, and quantum dot modules, each of which includes a display panel and a panel driver for operating the display panel. Furthermore, this term may also be used to refer to set electronic devices, set equipment, or devices including LCMs, OLED modules, QD modules, etc. (e.g., equipment display apparatus including finished or final products such as laptops, televisions, computer monitors, automotive displays, or equipment displays installed in other vehicle forms), as well as mobile electronic devices such as smartphones or electronic boards.

[0041] Therefore, in this invention, the display device may include not only the display device itself in the narrow sense, such as LCM, OLED module, QD module, but also the unit device as an application product or end consumer device including LCM, OLED module, QD module, etc.

[0042] Furthermore, in some cases, an LCM, OLED module, or QD module consisting of a display panel and a panel driver can be referred to as a "display device" in the narrow sense, while an electronic device that includes an LCM, OLED module, or QD module can be referred to as a "unit device." For example, a display device in the narrow sense may include a liquid crystal (LCD), organic light-emitting diode (OLED), or quantum dot (QD) display panel and a source printed circuit board (PCB) that serves as a controller for driving the display panel, while a unit device may further include a unit PCB that serves as a unit controller electrically connected to the source PCB and controlling the entire unit device.

[0043] The display panel used in the embodiments may include all types of display panels, such as liquid crystal display panels, organic light-emitting diode (OLED) display panels, quantum dot (QD) display panels, and electroluminescent display panels, and is not limited to a specific display panel that can bend the bezel using the flexible substrate of the OLED display panel and the backplate support structure located below it. Furthermore, the display panel used in the embodiments of the present invention is not limited by the shape or size of the display panel.

[0044] For example, when the display panel is an organic light-emitting diode (OLED) display panel, it may include multiple gate lines and data lines, as well as pixels formed at the intersections of the gate lines and data lines. Furthermore, it may be configured to include: an array comprising thin-film transistors as components for selectively applying voltage to each pixel; an organic light-emitting diode (OLED) layer on the array; and an encapsulation substrate or encapsulation layer disposed on the array to cover the OLED layer. The encapsulation layer protects the thin-film transistors and the OLED layer from external impacts and prevents moisture or oxygen from penetrating into the OLED layer. Additionally, the layers formed on the array may include, for example, inorganic light-emitting layers such as nanoscale material layers or quantum dots.

[0045] In this invention, the display panel exemplifies an exemplary organic light-emitting diode (OLED) display panel that can be integrated inside a display device.

[0046] Figure 1 This is a perspective view illustrating a display device 100 according to an embodiment.

[0047] Reference Figure 1 The display device 100 can be applied to TVs, monitors, PCs, vehicle dashboards, etc. According to one embodiment, the display device 100 can be applied to a vehicle dashboard. Figure 1 An example of a display device 100 is shown, having a trapezoidal shape with rounded edges. However, without limitation, the display device 100 may be shaped as, for example, a rectangle or polygon with angled edges, a rectangle or polygon with rounded edges, or an ellipse or a circle. The following describes a display device 100 shaped as, for example, a trapezoid with rounded edges.

[0048] Furthermore, the display device 100 according to the embodiment can be a curved display device. For example, the display device 100 has a long side (or long side edge) extending along a first direction DR1 and a short side (or short side edge) extending substantially along a second direction DR2, and the display device 100 according to the embodiment of the present invention can be a curved display device having a long side curved in a third direction DR3. In the case of a curved display device 100, the aforementioned members of the display device 100 described below can also be curved according to the curvature of the display device 100. Therefore, the names of the members of the display device 100 described later may have the prefix "curved".

[0049] Reference Figure 1 The display device 100 includes a cover window 101 and a display panel 150. The cover window 101 may be made of glass or plastic material to protect the display panel 150 from external vibrations.

[0050] Display panel 150 is formed below cover window 101 and is attached to cover window 101 via adhesive members. Display panel 150 may include a polarizing plate, panel layer, and touch panel. In particular, when display panel 150 is an in-vehicle display panel, a viewing angle control film may be added for controlling the viewing angle by controlling the light emitted toward the driver. Such a viewing angle control film is a specific form of display device 100 installed in a vehicle. In particular, recently, display devices 100 installed in vehicles are positioned in front of the driver's seat to display speedometers, etc., positioned in the center to display navigation, etc., and positioned in front of the passenger seat to display multimedia to the occupant sitting in the passenger seat. Furthermore, recently, integrated display devices 100 are formed from in front of the driver's seat via the center to in front of the passenger seat. Therefore, a viewing angle control film is important for preventing the image displayed for the passenger seat from being transferred to the driver.

[0051] Display device 100 includes: a display area AA in which a user can view video or images in front of it; and a non-display area NA in which no image is displayed. This non-display area NA may also be referred to as a border area.

[0052] Figure 2 This is a cross-sectional view of the display panel according to the embodiment.

[0053] Reference Figure 2A substrate 111 is disposed at the bottom of the display panel 150. The substrate 111 supports the various components of the display panel 150. The substrate 111 can be formed of a transparent dielectric material such as glass or plastic. In the case of being formed of plastic, the substrate 111 can be a plastic film or a plastic substrate. For example, the substrate 111 can take the form of a film including one of polyimide-based polymers, polyester-based polymers, silicone-based polymers, acrylic-based polymers, polyolefin-based polymers, and copolymers thereof. Among these materials, polyimide is mainly used as a plastic substrate because it is suitable for high-temperature processes and is a coatable material.

[0054] A buffer layer may be located on the substrate 111. The buffer layer is a functional layer that protects the thin-film transistor (TFT) from impurities such as alkali ions that may leak from the bottom of the substrate 111. The buffer layer may be formed of silicon oxide (SiOx), silicon nitride (SiNx), or multiple layers thereof.

[0055] Thin-film transistor 130(T) may be disposed on a buffer layer. Thin-film transistor 130 may be formed by sequentially arranging a gate 132, a gate insulating layer 112, a semiconductor layer 134, an interlayer insulating film 114, a source 136, and a drain 138 on the buffer layer. One or more thin-film transistors 130 may be arranged as multiple sub-pixels disposed in the active region.

[0056] Despite Figure 2 The thin-film transistor 130 is shown as a bottom-gate type, but it is not limited to this and can also be configured as a top-gate type, wherein the order of semiconductor layer 134 and gate 132 is reversed.

[0057] The semiconductor layer 134 may be disposed at a specific location on the substrate 111 or on a buffer layer. The semiconductor layer 134 may be made of polycrystalline silicon (p-Si), and in this case, a portion of the semiconductor layer 134 may be doped with impurities to form an electrode layer. The semiconductor layer 134 may also be made of amorphous silicon (a-Si) and various organic semiconductor materials such as pentacene. Furthermore, the semiconductor layer 134 may also be made of oxide materials. The gate insulating layer 112 may be formed of inorganic dielectric materials such as silicon oxide (SiOx) or silicon nitride (SiNx) as well as organic dielectric materials. The gate 132 may be formed of various conductive materials such as magnesium (Mg), aluminum (Al), nickel (Ni), chromium (Cr), molybdenum (Mo), tungsten (W), gold (Au), or alloys thereof.

[0058] The first interlayer insulating film 114 may be formed of inorganic dielectric materials such as silicon oxide (SiOx) or silicon nitride (SiNx) as well as organic dielectric materials. The first interlayer insulating film 114 may be selectively removed to form contact holes that expose the source and drain regions.

[0059] The source electrode 136 and the drain electrode 138 are formed as a single layer or multiple layers of electrode material on the first interlayer insulating film 114.

[0060] An inorganic protective film 116 and a planarization layer 118 may be located on the thin-film transistor 130 to cover the source 136 and the drain 138. The inorganic protective film 116 and the planarization layer 118 protect the thin-film transistor 130 and planarize its upper surface.

[0061] The inorganic protective film 116 may be formed from an inorganic dielectric film such as silicon nitride (SiNx) and silicon oxide (SiOx), while the planarization layer 118 may be made from an organic dielectric film such as benzocyclobutene (BCB) or acrylic acid. Each of the inorganic protective film 116 and the planarization layer 118 may be formed as a single layer, double layer, or multilayer structure, and in some cases, one of the two layers may be omitted.

[0062] The light-emitting OLED connected to the thin-film transistor (TFT) 130 can be formed by sequentially arranging a first electrode 122, an organic light-emitting layer 124, and a second electrode 126. That is, the light-emitting OLED can be composed of a first electrode 122 connected to a drain 138 via a connection hole 148 formed in a planarization layer 118 and an inorganic protective film 116, an organic light-emitting layer 124 located on the first electrode 122, and a second electrode 126 located on the organic light-emitting layer 124.

[0063] When the display panel 150 is a top-emitting type that emits light upwards through the second electrode 126, the first electrode 122 may include an opaque conductive material with high reflectivity. In this case, examples of reflective conductive materials may include silver (Ag), aluminum (Al), gold (Au), molybdenum (Mo), tungsten (W), chromium (Cr), or alloys thereof.

[0064] A dam 128 is formed in a region other than the light-emitting region to expose or open the light-emitting region. Therefore, the dam 128 has a dam hole that exposes the first electrode 122 corresponding to the light-emitting region. The dam 128 may be made of inorganic dielectric materials such as silicon nitride (SiNx) and silicon oxide (SiOx) or organic dielectric materials such as BCB, acrylic resin, or imide resin.

[0065] An organic light-emitting layer 124 is located on the first electrode 122 exposed by the embankment 128. The organic light-emitting layer 124 may include a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer. Furthermore, the organic light-emitting layer 124 may be composed of a single-emitting-layer structure that emits a single light within a single stack, or a multi-stack structure comprising multiple stacks, each stack including a single light-emitting layer of the same color. In these cases, adjacent sub-pixels may be arranged to emit light of different colors to display various colors. For example, sub-pixels having red, green, and blue light-emitting layers may be arranged in rows or spaced apart from each other, and may be arranged in a triangular or pentile structure, wherein some sub-pixels of a predetermined color are aligned parallel to each other and other sub-pixels are aligned diagonally to each other.

[0066] In some cases, white subpixels can also be added to the arrangement. Furthermore, the organic light-emitting layer 124 can be configured to represent white by stacking multiple layers comprising light-emitting layers that emit different colors of light. In cases where a stacked structure is used to represent white, a separate color filter can be additionally added to each subpixel.

[0067] The second electrode 126 is located on the organic light-emitting layer 124. When the display panel 150 adopts a top-emitting structure, the second electrode 126 may be formed of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO) or a semi-transparent metal or metal alloy such as Mg and Ag, so as to emit light generated in the organic light-emitting layer 124 upward through the second electrode 126.

[0068] The second electrode 126 can be arranged to reach the capping layer. The capping layer protects the OLED and helps extract light emitted through the second electrode 126 by using a material with a high refractive index.

[0069] An encapsulation layer 140 may be disposed on the light-emitting component OLED. The encapsulation layer 140 prevents oxygen and moisture from penetrating from the outside, thus preventing oxidation of the light-emitting and electrode materials. Exposure of the OLED to moisture or oxygen can lead to pixel shrinkage or the formation of dark spots, thereby reducing the light-emitting area. The encapsulation layer 140 can be formed by alternately stacking inorganic layers 142 and 146 made of glass, metal, aluminum oxide (AlOx), or silicon (Si) materials, and an organic layer 144, wherein the organic layer 144 serves to mitigate the oxidation caused by moisture in the display device 100 (see [link to display device 100]). Figure 1The organic layer 144 acts as a buffer against stress between layers caused by bending and enhances planarization performance. It can be made of organic dielectric materials such as acrylic resin, epoxy resin, polyimide, polyethylene, or silicon carbide oxide (SiOC). Here, the first inorganic layer 142 and the second inorganic layer 146 serve to block the penetration of moisture or oxygen, while the organic layer 144 planarizes the surface of the first inorganic layer 142. The encapsulation layer 140 consists of multiple thin film layers to increase the length and complexity of the path that moisture and oxygen must traverse compared to a single layer, with the aim of making it difficult for moisture and oxygen to penetrate the OLED light-emitting component.

[0070] A protective layer may be further formed between the light-emitting OLED component and the encapsulation layer 140 to protect the encapsulation layer 140 and prevent it from being peeled off or having its uniformity affected during the manufacturing process of the encapsulation layer 140.

[0071] Reference Figure 2 The polarization layer 154 may be disposed on the encapsulation layer 140. The polarization layer 154 can minimize the impact of light from external light sources on the semiconductor layer 134 or the organic light-emitting layer 124 on the display panel 150.

[0072] Reference Figure 2 The touch sensor layer 155 may be disposed on the polarization layer 154. The touch sensor layer 155 may be constructed using a first touch electrode 155a and a second touch electrode 155c that intersect each other to allow one electrode to receive an applied voltage signal and the other electrode to sense the voltage signal. The first touch electrode 155a and the second touch electrode 155c may be patterned into polygonal or circular shapes on the touch insulating film 155b and arranged to be spaced apart from each other by a distance.

[0073] A cover window 101 may be disposed on the touch sensor layer 155. An adhesive layer is further disposed between the touch sensor layer 155 and the cover window 101 to bond them together.

[0074] Figure 3 This is an exploded perspective view of a display device according to an embodiment. Figure 4 It is along Figure 1 The sectional view of the display device is taken by line A-A'. Figure 5 This is a perspective view showing the rear side of a display device according to an embodiment. Figure 6 It is shown Figure 5 A plan view of the rear side of the display device.

[0075] Figure 3 The cover window 101 is shown at the top. Figure 4 and 5The cover window 101 is shown positioned at the bottom. It should be noted that the terms "upper" and "lower" in this invention are relative concepts, used to indicate the upper and lower parts relative to the figures being described, and not to the upper and lower parts in an actual product. In fact, Figure 3 The illustration shows the guide holder 160 being removed. Figure 5 and 6 The diagram shows the guide seat 160 covering the cover window 101. (See diagram for example.) Figure 3 and 4 As shown in the cross-sectional view, a viewing angle control layer 350, an adhesive member 102, a polarizing film 250, a display panel 150, a back plate 103, a heat sink 104, and similar components may be further disposed between the cover window 101 and the guide seat 160. However, these components are several millimeters thick and are therefore omitted in 5 and 6.

[0076] In addition, Figure 4 As shown, the rear cover 190 may be further disposed on the guide seat 160. To describe the rear of the display device 100 in detail, the rear cover 190... Figure 3 , 5 Remove from 6.

[0077] The display device 100 according to an embodiment of the present invention may include a cover window 101, a viewing angle control layer 350, an adhesive member 102, a polarizing film 250, a display panel 150, a back plate 103, a heat sink 104, a guide seat 160, a source printed circuit board 170, and a control printed circuit board 180.

[0078] Cover window 101 may be disposed on the front surface of display panel 150 and may be made of a high-strength glass material, but is not limited thereto. Furthermore, cover window 101 may include display area AA (see...). Figure 1 ) and non-display area NA (see Figure 1 The display area AA may correspond to the display panel 150, and the non-display area NA may correspond to the bezel area. The bezel area may be formed using a light-shielding pattern BM. Therefore, the display device 100 may include light-shielding patterns BM formed at the four edges of the top, bottom, left, and right sides when viewed from the front.

[0079] A viewing angle control layer 350 is used to control the direction of light emitted from the display panel 150 and can be disposed on one side of the cover 101, i.e., on the front end of the display panel 150. In particular, the display device 100 installed in a vehicle may need to be controlled to selectively emit light towards the driver or not emit light at all. In this way, the viewing angle control layer 350 can selectively control the path of light emitted from the display panel 150. (See below for further details.) Figure 13 and 14 Detailed description of the view control layer 350.

[0080] The adhesive member 102 is used to bond the cover window 101 and the viewing angle control layer 350 to each other. Additionally, the adhesive member 102 is used to bond the polarizing film 250 to the viewing angle control layer 350. The adhesive member 102 may include a transparent material, such as an optically clear adhesive (OCA) or a pressure-sensitive adhesive (PSA).

[0081] A polarizing film 250 is disposed on the adhesive member 102. The polarizing film 250 is used to polarize the light emitted from the display panel 150.

[0082] Display panel 150 is disposed on polarizing film 250. Display panel 150 emits light for displaying video or images and internally includes multiple pixels and transistors for driving the pixels. Detailed structure of display panel 150 is shown in the reference. Figure 2 The same as the example described.

[0083] A backplate 103 is disposed on the display panel 150. The backplate 103 can serve as a rigid structure to enhance the rigidity of the display panel 150. The backplate 103 can be formed from a plastic film.

[0084] A heat sink 104 is disposed on the back plate 103. The heat sink 104 is used to dissipate heat generated in the display panel 150 or printed circuit boards 170 and 180. The heat sink 104 may be made of aluminum, magnesium or similar metal materials, or plastic materials with excellent thermal conductivity.

[0085] A guide seat 160 is disposed on the heat sink 104. The guide seat 160 serves to protect components located beneath it and supports the control printed circuit board 180. To support the control printed circuit board 180, the guide seat 160 may include a substrate supporting block 200. The guide seat 160 may be formed of metal or plastic material.

[0086] Back cover 190 (see) Figure 4 A rear cover 190 may be disposed on the bottom of the guide seat 160. The rear cover 190 may be used to protect the printed circuit boards 170 and 180 located beneath it. The rear cover 190 may be thread-coupled to the guide seat 160. The rear cover 190 may be formed of metal or plastic material.

[0087] The guide seat 160 may be disposed on the top surface of the display panel 150. According to one embodiment, the guide seat 160 may be made of aluminum, a material with excellent thermal conductivity, but is not limited thereto. For example, the guide seat 160 may include a composite metal material containing magnesium. Furthermore, the guide seat 160 may be made of a plastic material.

[0088] The guide seat 160 can be engaged with the rear of the display panel 150. Therefore, the guide seat 160 can be used as a heat sink to dissipate and remove heat from the display panel 150.

[0089] The guide seat 160 may also perform the function of holding or fixing the source printed circuit board 170 and the control printed circuit board 180. For example, the guide seat 160 may include a substrate support block 200, and the control printed circuit board 180 may be disposed on the substrate support block 200. Multiple such substrate support blocks 200 may exist.

[0090] The source printed circuit board 170 can be disposed on the rear of the guide seat 160, and the source printed circuit board 170 can be connected to the display panel 150 via a flexible circuit board 175. The flexible circuit board 175 can be configured as a chip-on-film (COF) and includes a source driver integrated circuit (IC) inside.

[0091] The control printed circuit board 180 may be disposed in the substrate support block 200 formed in the guide seat 160 and connected to the source printed circuit board 170 via a flat cable 185. Specifically, the first connector disposed in the source printed circuit board 170 and the second connector disposed in the control printed circuit board 180 are connected via the flat cable 185, so that the control printed circuit board 180 can control the source printed circuit board 170.

[0092] The back cover 190 may be disposed on the guide seat 160 and coupled to the guide seat 160 by means of, for example, screws, while surrounding and protecting the source printed circuit board 170 and the control printed circuit board 180. The back cover 190 may be made of a synthetic metal material including, but not limited to, magnesium or polycarbonate (PC) materials. For example, the back cover 190 may be made of a plastic material.

[0093] According to the embodiment, the cover window 101, the viewing angle control layer 350, the adhesive member 102, the polarizing film 250, the display panel 150, the back plate 103, the heat sink 104, and the guide seat 160 may have corresponding curved shapes according to the curvature of the display device 100.

[0094] Figure 7 This is an exploded perspective view of the heat sink and guide seat according to the embodiment. Figure 8 yes Figure 7 An enlarged perspective view of region B in the image. Figure 9 yes Figure 7 An enlarged perspective view of region C in the image.

[0095] and Figure 5 and 6 Refer to together Figures 7 to 9According to an embodiment, the heat sink 104 may include a first base 141 and a first protrusion 143 protruding from the first base 141 toward the guide seat 160. According to an embodiment, the guide seat 160 may include a second base 161 and a second protrusion 163 protruding from an end of the second base 161.

[0096] like Figure 7 As shown, the heat sink 104 may have a long side 140S1 extending generally along the first direction DR1 and a short side 140S2 connecting the long side 140S1. In this invention, the long side 140S1 extending generally along the first direction DR1 may represent the display device 100 (see...) Figure 1 When the display device 100 is straight and not bent, the long side 140S1 extends along the first direction DR1; however, when the display device 100 is bent, the long side 140S1 bends relative to the third direction DR3. (Refer to the above.) Figure 1 As described, the display device 100 according to the embodiment has, for example, a trapezoidal shape including rounded edges, whereby the lower long side 140S1 of the heat sink 104 may be longer than the upper long side 140S1. Similarly, the guide seat 160 may have a long side 160S1 extending generally along a first direction DR1 and a short side 160S2 connecting the long side 160S1.

[0097] A first protrusion 143 of the heat sink 104 may protrude from the long side 140S1 of the heat sink 104 toward the guide seat 160. Multiple first protrusions 143 may exist, and the multiple first protrusions 143 may be configured to be spaced apart from each other along the extending direction of the long side 140S1 of the heat sink 104. The first protrusions 143 may be formed in the upper long side 140S1 and the lower long side 140S1 of the heat sink 104, respectively.

[0098] A second protrusion 163 of the guide seat 160 may protrude from the second base 161 toward the second direction DR2. Multiple second protrusions 163 may exist. The second protrusions 163 may be formed in the upper long side 160S1 and the lower long side 160S1 of the guide seat 160, respectively. The second protrusion 163 protruding from the upper long side 160S1 may protrude upwards, and the second protrusion 163 protruding from the lower long side 160S1 may protrude downwards.

[0099] like Figure 8 As shown, the first protrusion may have Shape. However, the shape of the first protrusion 143 is not limited to this. The shape can also be formed, for example, into a bar that extends roughly along the first direction DR1.

[0100] like Figure 9 As shown, a space 165 can be formed between the second protrusions 163 that are separated from each other.

[0101] Figure 10 It is shown Figure 7 A perspective view of the heat sink and guide seat joined together. Figure 11 yes Figure 10 An enlarged perspective view of region D in the image.

[0102] Figure 10 and 11 The first protrusion 143 of the heat sink 104 shown can be inserted into the space 165 formed in the guide seat 160. The first protrusion 143 inserted in the space 165 can contact each of the second protrusions 163 of the adjacent guide seat 160. The first protrusion 143 can directly contact the adjacent second protrusion 163.

[0103] Figure 12 and 13 This is a view used to describe the engagement between the heat sink and the guide seat according to the embodiment. Figure 14 yes Figure 13 A magnified view of region E in the image.

[0104] Reference Figure 12 and 13 The first protrusion 143 of the heat sink 104 can be inserted into the space 165 formed in the guide seat 160. The first protrusion 143 inserted in the space 165 can contact each of the second protrusions 163 of the adjacent guide seat 160.

[0105] like Figure 14 As shown, the heat sink 104 may have a predetermined rebound force F1, and the second protrusion 163 may have a spring force F2 in the opposite direction to the rebound force F1. More specifically, as shown in reference Figure 1 As described, the heat sink 104 can be a bent heat sink 104, and the bent heat sink 104 can have a spring force F1 so as to Figure 14 The heat sink 104 straightens again as shown. Due to the springback force F1 of the bent heat sink 104 straightening again from a bent state, the display device 100 (see...) Figure 1 It may not maintain its curvature.

[0106] Furthermore, due to the springback force F1 of the bent heat sink 104 straightening from a bent state, the display device 100 (see...) Figure 1 The guide seat 160 (see...) cannot maintain its curvature, which causes... Figure 4 ) and back cover 190 (see Figure 4 Misalignment during tightening.

[0107] However, in the display device 100 according to the embodiment (see...) Figure 1In the case of a bent heat sink 104, even if the bent heat sink 104 has a spring force F1 that straightens it from a bent state, because the first protrusion 143 of the heat sink 104 is inserted into the space 165 formed in the guide seat 160, the spring force F2 of the second protrusion 163 of the bent guide seat 160 will also offset the spring force F1 of the heat sink 104, thereby maintaining the display device 100 (see...). Figure 1 The curvature of the heat sink 104 and the bending guide seat 160 can be bent in a manner that bends the long side 140S1 and the long side 160S1, respectively. Therefore, it is advantageous to minimize the curvature of the display device 100 (see...). Figure 1 ) module failure, and minimize when guide seat 160 (see Figure 4 ) and back cover 190 (see Figure 4 Alignment failure when the parts are fastened together.

[0108] According to the embodiment, the sum of the elastic forces F2 of the plurality of second protrusions 163 can be greater than the rebound force F1 of the heat sink 104, so that the elastic force F2 of the second protrusions 163 of the guide seat 160 can compensate for the rebound force F1 of the heat sink 104.

[0109] According to some other embodiments, the second protrusion 163 may include, but is not limited to, a material having a greater elasticity than the second base 161. Optionally, the second protrusion 163 may include the same material as the second base 161.

[0110] The following describes a display device according to another embodiment.

[0111] Figure 15 This is a perspective view of a heat sink according to another embodiment.

[0112] Reference Figure 15 According to this embodiment, the first protrusion 143_1 of the heat sink 104_1 and Figure 8 The difference of the heat sink 104 is that the first protrusion 143_1 has shape.

[0113] More specifically, the first protrusion 143_1 according to this embodiment may have shape.

[0114] Other descriptions and references Figure 8 The description is the same as the previous one, so it will not be described in detail again.

[0115] Figure 16 This is a perspective view of a guide seat according to another embodiment. Figure 17 yes Figure 16 A magnified view of region F in the image.

[0116] Reference Figure 16and 17 According to the guide seat 160_1 of this embodiment and Figure 9 The difference in the guide seat 160 shown is that the lateral side (facing space 165) includes a chamfer surface CHS.

[0117] More specifically, the chamfered surface CHS may have a convex shape projecting toward space 165, such as Figure 17 As shown. For example, the chamfered surface CHS can have a trapezoidal cross section.

[0118] According to this embodiment, the guide seat 160_1 further includes a chamfered surface CHS, so that when the first protrusion 143 of the heat sink 104 is inserted into the space 165 of the guide seat 160_1, the first protrusion 143 can be captured in the chamfered surface CHS, thereby improving the coupling between the guide seat 160_1 and the heat sink 104.

[0119] Other descriptions and references Figure 9 The description is the same as the previous one, so it will not be described in detail again.

[0120] Figure 18 This is a view showing the chamfered surface of the guide seat according to yet another embodiment.

[0121] Reference Figure 18 According to this embodiment, the guide seat 160_2 and Figure 17 The difference in the guide seat 160_1 shown is that the second protrusion 163_2 has a chamfered surface CHS_1 whose width gradually decreases from one side to the other in the third direction DR3.

[0122] According to this embodiment, the guide seat 160_2 further includes a chamfered surface CHS_1, so that when the first protrusion 143 of the heat sink 104 is inserted into the space 165 of the guide seat 160_2, the first protrusion 143 is captured in the chamfered surface CHS_1, thereby improving the coupling between the guide seat 160_2 and the heat sink 104.

[0123] Other descriptions and references Figure 9 The description is the same as the previous one, so it will not be described in detail again.

[0124] For example, a display device may include: a display panel; a heat sink on the bottom of the display panel; and a guide seat on the bottom of the heat sink, wherein the heat sink includes a first base and a first protrusion projecting toward the guide seat, and the guide seat includes a second base and a plurality of second protrusions projecting from an end of the second base.

[0125] Spaces can be formed between adjacent second protrusions.

[0126] The first protrusion can be inserted into the space.

[0127] The first protrusion can directly contact the adjacent second protrusion.

[0128] The display device may include a flexible display device, wherein each of the display panel, the heat sink, and the guide seat is flexible.

[0129] The heat sink may include a first long edge extending along a first direction and a first short edge extending along a second direction intersecting the first direction, wherein the first protrusion may be formed in the first long edge.

[0130] The guide seat may include a second long edge extending along the first direction and a second short edge extending along the second direction, wherein the second protrusion and the space may be formed in the second long edge.

[0131] The heat sink and the guide seat can be bent in a manner that causes the first long side edge and the second long side edge to bend, respectively.

[0132] The first protrusion may have shape.

[0133] The first protrusion may have shape.

[0134] The display device may also include a rear cover on the bottom of the guide seat, wherein the guide seat and the rear cover are coupled by screws.

[0135] A display device may include: a curved heat sink; and a curved guide seat on the bottom of the curved heat sink, wherein the curved heat sink includes a first base and a first protrusion projecting toward the curved guide seat, and the curved guide seat includes a second base and a plurality of second protrusions projecting from an end of the second base.

[0136] A space may be formed between adjacent second protrusions, and the first protrusion may be inserted into the space.

[0137] The first protrusion can directly contact the adjacent second protrusion.

[0138] The sum of the elastic forces of the second protrusion can be greater than the rebound force of the bent heat sink.

[0139] The elastic force of the second protrusion can be greater than the elastic force of the second base.

[0140] The curved heat sink may include a first long edge extending along a first direction and a first short edge extending along a second direction intersecting the first direction, and the first protrusion may be formed in the first long edge; the curved guide seat may include a second long edge extending along the first direction and a second short edge extending along the second direction, and the second protrusion and the space may be formed in the second long edge.

[0141] The curved heat sink and the curved guide seat can be bent in a manner that bends the first long edge and the second long edge, respectively.

[0142] Although some embodiments have been described in more detail with reference to the accompanying drawings, those skilled in the art will understand that different embodiments can be made without departing from the spirit or characteristics of the invention. Therefore, the above embodiments should be understood as exemplary and not restrictive in all respects.

[0143] Explanation of reference numerals in the attached figures:

[0144] 100: Display device

[0145] 101: Back Cover

[0146] 102: Adhesive components

[0147] 150: Display panel

[0148] 103: Backplate

[0149] 104: Heat sink

[0150] 160: Guide seat

[0151] 180: Control printed circuit board

[0152] 190: Back cover

[0153] 250: Polarizing film

[0154] 350: View Control Layer

Claims

1. A display device, comprising: Bending the heat sink; as well as A curved guide seat on the bottom of the curved heat sink, The curved heat sink includes a first base and a first protrusion projecting toward the curved guide seat. The bending guide seat includes a second base and a plurality of second protrusions projecting from the end of the second base. The second protrusion comprises an elastic material. A space is formed between adjacent second protrusions, and the first protrusion is inserted into the space. The first protrusion is in direct contact with the adjacent second protrusion. The sum of the elastic forces of the second protrusion is greater than the rebound force of the bent heat sink.

2. The display device according to claim 1, wherein the elastic force of the second protrusion is greater than the elastic force of the second substrate.

3. The display device according to claim 1, wherein: The curved heat sink includes a first long edge extending along a first direction and a first short edge extending along a second direction intersecting the first direction. The first protrusion is formed in the edge of the first long side.

4. The display device according to claim 3, wherein: The curved guide seat includes a second long edge extending along the first direction and a second short edge extending along the second direction. The second protrusion and the space are formed in the edge of the second long side.

5. The display device according to claim 4, wherein the curved heat sink and the curved guide seat are respectively curved in such a manner that the first long side edge and the second long side edge are curved.

6. The display device according to claim 1 further includes a curved display panel, wherein the curved heat sink is located on the bottom of the curved display panel.

7. The display device according to claim 1, wherein the first protrusion has " "shape.

8. The display device according to claim 1, wherein the first protrusion has " "shape.

9. The display device of claim 1, further comprising a rear cover on the bottom of the bending guide seat, wherein the bending guide seat and the rear cover are coupled by screws.

Images