Display device and vehicle comprising the same

Abstract

A display device includes a display panel, a polarizing film disposed on a top surface of the display panel, a viewing angle adjusting member disposed on a top surface of the polarizing film, a touch panel disposed on a top surface of the viewing angle adjusting member, and a heat spreader attached to a bottom surface of the display panel, wherein the viewing angle adjusting member includes a first electrode film, a second electrode film, and an electrochromic region disposed between the first electrode film and the second electrode film, and wherein an electrochromic pattern is disposed in the electrochromic region. Accordingly, the display device has a small or no-bezel shape in which an outer sealing portion of the viewing angle adjusting member corresponding to a plurality of users is minimized.

Description

Technical Field

[0001] This disclosure relates to a display device, and more specifically, to a display device having a viewing angle control function. Background Technology

[0002] In recent years, as we have entered the information age, displays that visually represent electrical information signals have developed rapidly. In response, various display devices that are high-performance, thin, lightweight, and low-power have been developed.

[0003] Specific examples of such display devices include liquid crystal displays (LCDs), organic light-emitting diode displays (OLEDs), and quantum dot displays.

[0004] Self-emissive display devices, such as organic light-emitting diode (OLED) displays, are considered competitive applications for achieving compact and vibrant color displays without the need for a separate light source. Recently, OLED displays have been used as vehicle information display devices. In this regard, OLED displays can be used as dashboards in front of the driver. Furthermore, OLED displays can be mounted on central dashboards, thus serving as central information displays (CIDs). Additionally, OLED displays can be mounted on dashboards in front of passengers, thus serving as AIDs (Ambient Information Displays). OLED displays used in this way have a self-emissive element in each sub-pixel. The self-emissive element can include two electrodes facing each other and a light-emitting layer disposed between the two facing electrodes, where electrons and holes move into the light-emitting layer and recombine to emit light. The OLED is a self-emissive element using a thin light-emitting layer between the electrodes and can be implemented as a thin film. Furthermore, the implementation of this device does not require a separate light source, allowing it to be implemented as a flexible, bendable, and foldable display device, thus allowing for various design options.

[0005] In central or environmental information displays, multiple information images can be simultaneously displayed in designated display areas. For example, information images needed for driving (e.g., navigation images) and images for passengers (e.g., moving images) can be displayed together. Furthermore, in recent years, components with viewing angle control functions have been attached to the display panel to prevent the driver from seeing images needed for passengers or vice versa. This solution can be applied to vehicles and indoor / outdoor information display devices with large screens.

[0006] However, viewing angle adjustment components are susceptible to external impacts or moisture penetration. The viewing angle adjustment component is a separate structure from the display panel. For example, a louver mold can be incorporated into the viewing angle adjustment component to separate the electrophoretic ink or electrochromic pattern. Side seals can be provided to protect the louver mold and electrophoretic ink from external influences. When the side seals crack or are damaged by external forces, external moisture may seep in, potentially reducing the concentration of the electrophoretic ink or causing the ink to leak out, resulting in a loss of viewing angle control. Therefore, the side seals play a crucial role in the durability of the viewing angle adjustment component. Thus, side seals with sufficient thickness and area can cover the sides of the viewing angle adjustment component to protect the electrophoretic ink and the louver mold.

[0007] However, with the continuous development and advancement of display devices, users increasingly prefer full-size bezel or borderless designs when viewing the screen. Therefore, for bezel-less or borderless designs, the size of the side seal of the viewing angle adjustment component should be reduced. One proposed structure involves forming an outer seal attached to the display panel within the viewing angle adjustment component for bezel-less or borderless designs. Specifically, a partition wall or weir can be formed within the viewing angle adjustment component, and a sealant can be applied to one surface of the partition wall and cured to protect the viewing angle adjustment component from external influences.

[0008] However, during the process of filling the sealing part of the viewing angle adjustment component with sealant, the side sealing part of the viewing angle adjustment component may be damaged due to the increased pressure of the sealant.

[0009] Furthermore, reducing the processing time required for the production of display devices has been recognized as a crucial factor in improving productivity and profitability during the development process, and is therefore continuously managed. Reducing processing time can be a significant factor in improving the productivity of additional components (such as modules or optical layers), not only for improving the additional functions of the display panel but also for improving the additional functions of the display device itself. The manufacturing time of viewing angle adjustment components and the processing time for attaching these components to the display panel can also be important factors. In particular, there has been a demand to shorten the time required for the application and curing of sealants for viewing angle adjustment components to improve production efficiency. Summary of the Invention

[0010] This disclosure aims to achieve the above-mentioned objectives. One technical objective of this disclosure is to provide a display device in which the pressure of the sealant applied to the sealing portion of the viewing angle adjustment member is reduced to minimize the size of the outer sealing portion of the viewing angle adjustment member.

[0011] In addition, one technical objective of this disclosure is to shorten the application time of the sealant for the viewing angle adjustment component in order to improve its workability.

[0012] Therefore, one technical objective of this disclosure is to achieve rapid operating speed and significantly reduce the occurrence of defects, regardless of the size or shape of the display device to which the viewing angle adjustment component is attached.

[0013] The purpose of this disclosure is not limited to the objectives described above. Other objectives and advantages not mentioned in this disclosure may be understood based on the following description and may become clearer based on embodiments of this disclosure. Furthermore, it will be readily understood that the objectives and advantages of this disclosure can be achieved using the methods shown in the claims and combinations thereof.

[0014] A display device according to an embodiment of the present disclosure includes a display panel, a polarizing film, a viewing angle adjustment component, a touch panel disposed on the top surface of the display panel, and a heat sink attached to the bottom surface of the display panel. The viewing angle adjustment component may include a first electrode film, a second electrode film, an electrochromic area, and an electrochromic pattern disposed between the first electrode film and the second electrode film.

[0015] A display device according to an embodiment of the present disclosure includes a display panel, a polarizing film, a viewing angle adjustment member, and a touch panel disposed on the top surface of the display panel. The viewing angle adjustment member may include a first electrode film, a second electrode film, a first weir and a second weir disposed between the first electrode film and the second electrode film, and an electrochromic area and an electrochromic pattern located between the first electrode film and the second electrode film.

[0016] Specific details of other embodiments are included in the detailed description and the accompanying drawings.

[0017] The display device according to embodiments of the present disclosure may provide a display device having a small bezel or a bezel-less shape, wherein the size of the outer sealing portion of the viewing angle adjustment member corresponding to a plurality of users is minimized.

[0018] Furthermore, damage to the seals that may occur during the manufacturing of the viewing angle adjustment component can be minimized, thereby improving the durability of the device. Specifically, the pressure of the sealant applied to the seal can be optimized, thereby reducing damage to the sealing weir. In addition, the processing time of the seal of the viewing angle adjustment component can be minimized, enabling sealant application in a short time.

[0019] In the display device according to the embodiments of the present disclosure, in addition to ordinary display devices with a rectangular shape, viewing angle adjustment components corresponding to irregular or various display devices can be effectively manufactured, thereby reducing their defects.

[0020] The effects of this disclosure are not limited to those described above, and those skilled in the art will clearly understand other effects not mentioned from the following description.

[0021] As described above, the purpose, objectives, and effects of this disclosure do not specify the essential features of the claims. Therefore, the scope of the claims is not limited by the aforementioned purpose, objectives, and effects of this disclosure. Attached Figure Description

[0022] Figure 1 This is a plan view showing the front surface of a display device according to an embodiment of the present disclosure.

[0023] Figure 2 It is shown Figure 1 An exploded perspective view of the components of the display device.

[0024] Figure 3 It is shown Figure 1 A cross-sectional view of the display panel of the display device.

[0025] Figure 4A Figure 4C is a view of the view control process of a pattern-based view adjustment component according to an embodiment of the present disclosure.

[0026] Figures 5A to 5B These are perspective and cross-sectional views illustrating the application process of a sealant to a viewing member according to an embodiment of the present disclosure.

[0027] Figures 6A to 6B These are perspective and cross-sectional views illustrating the application process of a sealant to a perspective adjustment component according to another embodiment of the present disclosure.

[0028] Figures 7A to 7B These are perspective and cross-sectional views illustrating the application process of a sealant to a perspective adjustment component according to yet another embodiment of the present disclosure.

[0029] Figure 8 This is a cross-sectional view of the sealing part showing a damaged sealing part of the viewing angle adjustment component.

[0030] Figures 9A to 9B It shows that due to the Figure 8 Defects that may occur in the viewing angle adjustment component may result from damage to the sealing part.

[0031] Figures 10A to 10B It shows that due to Figure 8 Damage to the sealing parts may lead to other defects in the viewing angle adjustment components.

[0032] Figure 11 The diagram shows various viewing angle adjustment components corresponding to various display devices, as well as the arrangement of sealant injection holes corresponding to the viewing angle adjustment components.

[0033] Figure 12 This is a view of the interior of a vehicle to which an embodiment of the present disclosure is applied. Detailed Implementation

[0034] The advantages and features of this disclosure, and its implementation methods, will become clear from the following detailed description of embodiments taken in conjunction with the accompanying drawings. However, this disclosure is not limited to the embodiments disclosed below, but will be implemented in various different forms. These embodiments are only intended to complete this disclosure, and are presented to fully convey the knowledge to those skilled in the art to which this disclosure pertains. The scope of this disclosure is defined only by the scope of the claims.

[0035] The shapes, dimensions, ratios, angles, quantities, etc., disclosed in the accompanying drawings used to illustrate embodiments of this disclosure are exemplary, and this disclosure is not limited thereto. Throughout this document, the same reference numerals denote the same elements. Furthermore, in describing this disclosure, detailed descriptions of relevant known elements are omitted where such descriptions are determined to potentially obscure the essential points of the disclosure unnecessarily. As used herein, unless the context explicitly indicates otherwise, the singular forms “a” and “an” are intended to also include the plural forms. It should be further understood that, when used in this specification, the terms “comprising,” “including,” “containing,” and “having” designate the presence of stated features, integers, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, operations, elements, components, and / or portions thereof.

[0036] When interpreting numerical values, unless otherwise explicitly described separately, the value is interpreted to include a range of error.

[0037] It should be understood that when a component or layer is referred to as being "connected to" or "joined to" another component or layer, it may be directly located on, directly connected to, or joined to the other component or layer, or one or more intermediate components or layers may exist. Furthermore, it should be understood that when a component or layer is referred to as being "between" two components or layers, it may be the only component or layer between the two components or layers, or one or more intermediate components or layers may exist. Additionally, it should be understood that when a first component or layer is referred to as being "on" or "below" a second component or layer, the first component may be directly disposed on or below the second component, or it may be indirectly disposed on or below the second component through a third component or layer disposed between the first and second components or layers.

[0038] Furthermore, as used herein, when a layer, membrane, region, plate, etc., is disposed "above" or "on top" of another layer, membrane, region, plate, etc., the former can be in direct contact with the latter, or another layer, membrane, region, plate, etc., can be disposed between the former and the latter. As used herein, when a layer, membrane, region, plate, etc., is directly disposed "above" or "on top" of another layer, membrane, region, plate, etc., the former is in direct contact with the latter, and another layer, membrane, region, plate, etc., is not disposed between the former and the latter. Furthermore, as used herein, when a layer, membrane, region, plate, etc., is disposed "below" or "below" another layer, membrane, region, plate, etc., the former can be in direct contact with the latter, or another layer, membrane, region, plate, etc., can be disposed between the former and the latter. As used herein, when a layer, membrane, region, plate, etc., is directly disposed "below" or "below" another layer, membrane, region, plate, etc., the former is in direct contact with the latter, and another layer, membrane, region, plate, etc., is not disposed between the former and the latter.

[0039] When describing temporal relationships, such as the chronological order between two events like "after," "next to," or "before," unless it is specified that "directly after," "directly next to," or "directly before," another event may occur between the two events.

[0040] It should be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, and / or portion from another element, component, region, layer, and / or portion. Therefore, without departing from the spirit and scope of this disclosure, the first element, component, region, layer, or portion described below may be referred to as the second element, component, region, layer, or portion.

[0041] The features of the various embodiments of this disclosure can be combined in part or in whole with each other, and can be technically related or interoperable. Embodiments can be implemented independently of each other, or they can be implemented together in an associated relationship.

[0042] When describing temporal relationships, such as the chronological order between two events as "after," "next to," or "before," another event may occur between the two events unless it is specified as "directly after," "directly next to," or "directly before." Features of the various embodiments of this disclosure can be combined partially or entirely with each other and can be technically related or interoperable. Embodiments can be implemented independently of each other or together in an associated relationship. For ease of explanation, spatially related terms such as "below," "under," "lower," "below," "above," and "upper" are used herein to describe the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation depicted in the figures, spatially related terms are intended to cover different orientations of the device in use or operation. For example, when the device in the figures can be flipped, an element or feature described as "below," "under," or "below" other elements will face "above" other elements or features. Therefore, the example terms "below" and "below" can cover both above and below orientations. The device can determine orientation in other ways (e.g., by rotating 90 degrees or by other orientations), and the spatially relevant descriptive terms used in this document should be interpreted accordingly.

[0043] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that, unless expressly defined herein, terms (e.g., those defined in common dictionaries) shall be interpreted as having the same meaning as they have in the context of the prior art and shall not be interpreted in an idealized or overly formal sense.

[0044] As used herein, the term "display device" in a narrow sense can include a display device comprising a liquid crystal module (LCM), an organic light-emitting diode (OLED) module, or a quantum dot (QD) module having a display panel and a driver for driving the display panel. Furthermore, in a broad sense, a display device can include notebook computers, televisions, computer monitors, in-vehicle equipment or vehicle displays, assemblies of electronic equipment, assemblies of equipment, or assemblies of equipment that include finished or final products having LCM, OLED, or QD modules.

[0045] Therefore, the display device according to this disclosure can, in a narrow sense, include the display device itself, such as including LCM, OLED module, QD module, etc., and in a broad sense, can include a complete set of equipment as an application product or end-user device, including finished or final products having LCM, OLED module or QD module.

[0046] Furthermore, in some cases, LCM, OLED modules, or QD modules, consisting of a display panel and a driver, can also be narrowly defined as "display devices." Electronic devices that include LCM, OLED, or QD modules as finished products can be broadly defined as "equipment sets." For example, a narrowly defined display device can include a display panel such as a liquid crystal panel, an organic light-emitting diode (OLED) panel, or a quantum dot display panel, and a source PCB that acts as a controller to drive the display panel. A broadly defined equipment set can include a display panel (e.g., a liquid crystal panel, an OLED, or a quantum dot display panel), a source PCB (acting as a controller to drive the display panel), and an equipment set PCB (acting as an equipment set controller electrically connected to the source PCB and controlling the equipment set).

[0047] As used herein, the display panel can be any type of display panel, such as a liquid crystal display panel, an organic light-emitting diode (OLED) display panel, a quantum dot (QD) display panel, and an electroluminescent display panel. The display panel used in this disclosure is not limited to specific display panels including a flexible substrate for an OLED display panel and an underlying backplane support structure having a flexible bezel. Furthermore, the display panel used in the display device according to embodiments of this disclosure is not limited to the shape or size of the display panel.

[0048] More specifically, when the display panel is implemented as an organic light-emitting diode (OLED) display panel, the display panel may include multiple gate lines and multiple data lines, as well as pixels formed in areas where the gate lines and data lines intersect each other. Furthermore, the display panel may be configured to include an array comprising thin-film transistors (which serve as elements for selectively applying voltage to each pixel), an organic light-emitting element layer located on the array, and an encapsulation substrate or encapsulation layer disposed on the array to cover the organic light-emitting element layer. The encapsulation layer protects the thin-film transistors and the organic light-emitting element layer from external impacts and can prevent moisture or oxygen from penetrating into the organic light-emitting element layer. Additionally, the light-emitting layer formed on the array may include an inorganic light-emitting layer, such as a nanoscale material layer or quantum dots.

[0049] Figure 1 This is a plan view showing the front surface of a display device 10 according to an embodiment of the present disclosure. (Refer to...) Figure 1 The display device 10 refers to a display device 10 for a vehicle, wherein a dashboard area for the driver is integrally formed with a central instrument panel displaying various information such as navigation. However, this disclosure is not necessarily limited thereto. For example, the display device of embodiments of this disclosure can be applied to display devices or TVs installed indoors and outdoors to provide commercial advertising or various information. Furthermore, the shape of the display device 10 can conform to various shapes depending on the purpose and use of products widely used in vehicles or indoors and outdoors.

[0050] Figure 2 This is an exploded perspective view showing the components of a display device 10 according to an embodiment of the present disclosure. Based on the back of the display device 10, the components can be stacked in the following order: a heat sink 200 (implemented as an aluminum plate), a back plate 300, a display panel 100, a polarizing film 400, a viewing angle adjustment member 500, a touch panel 600, and a cover glass 700. Thus, the display device 10 can be manufactured. However, the stacking order is not necessarily limited to this. For example, the polarizing film 400 can be disposed on the top surface of the viewing angle adjustment member 500 and the touch panel 600, thereby more reliably blocking external light.

[0051] Reference Figure 2 The heat sink 200 can be configured to dissipate and disperse heat generated from the display panel 100. For example, the heat sink 200 can be made of metal. Due to the properties of metal, the heat sink 200 can be more rigid than the display panel 100 and can have high thermal conductivity. When the screen of the display device 10 operates for a long time or the temperature of the display panel 100 rises due to increased external temperature, problems related to the operation of the display screen may occur. Heat dissipation is an important factor to prevent the display screen from malfunctioning. Therefore, aluminum or copper plates can be used as the material for the heat sink 200.

[0052] A backplate 300, which supports the display panel 100, can be disposed on the top surface of the heat sink 200. Since the display panel 100 includes a flexible substrate, the backplate 300 serves to prevent deformation or damage to the display panel 100 during the manufacturing process. The backplate 300 can be made of a lightweight and transparent material such as polyethylene terephthalate (PET).

[0053] The display panel 100 can be disposed on the top surface of the back panel 300, and the polarizing film 400 can be disposed on the top surface of the display panel 100. Figure 3 The display panel 100 is described in detail. The polarizing film 400 controls the external light incident on the display panel 100 and reflected from the display panel 100, so that the user can see the display screen even outdoors.

[0054] When the viewing angle adjustment member 500 is disposed on the top surface of the polarizing film 400, a portion of the screen light with a specific viewing angle generated from the display panel 100 can pass through the viewing angle adjustment member 500, while the remaining portion of the screen light may be blocked by the viewing angle adjustment member 500. The function of the viewing angle adjustment member 500 will be described in detail in FIG4.

[0055] The touch panel 600 and the cover glass 700 can be disposed on the top surface of the viewing angle adjustment member 500. The touch panel 600 can be integrated into the display panel 100. However, in this embodiment, a configuration with a separate touch panel 600 is used as an example. The cover glass 700, as the topmost layer, can protect the display panel 100, the viewing angle adjustment member 500, and the touch panel 600.

[0056] Figure 3 It is along Figure 1 The area intercepted by I-I' is used as a cross-sectional view of the display area. Figure 3 The display panel 100 has an example structure including two planarization layers. In the display panel 100, a semiconductor layer 102, a gate 104, a source 106 and a drain 108 constituting a thin film transistor, as well as an anode 112, an organic light-emitting layer 114 and a cathode 116 are disposed on a substrate 101.

[0057] The substrate 101 can be a glass substrate or a plastic substrate.

[0058] When the substrate is implemented as a plastic substrate, it can be made of a polyimide-based or polycarbonate-based material to have flexibility. In particular, polyimide can be used in high-temperature processes and can be coated, so it is often used as a material for plastic substrates.

[0059] Buffer layer 130 serves as a functional layer to protect the electrodes / lines from impurities (such as alkali ions) leaking from substrate 101 or the underlying layer. The buffer layer may be made of silicon oxide (SiO2). x ), silicon nitride (SiN) x Buffer layer 130 may be made of multiple buffer layers 131 and / or active buffer layers 132. Multiple buffer layers 131 may be made by alternating layers of silicon nitride (SiN). x ) layer and silicon oxide (SiO) x The active buffer layer 132 is formed to delay the diffusion of moisture and / or oxygen into the substrate 101. The active buffer layer 132 protects the semiconductor layer 102 of the transistor and prevents various defects from the substrate 101 from penetrating the layer above the buffer layer. For example, the active buffer layer 132 can be made of amorphous silicon (a-Si).

[0060] The thin-film transistor can have a configuration in which a semiconductor layer 102, a gate insulating film 103, a gate 104, an interlayer insulating film 105, a source 106, and a drain 108 are sequentially disposed. The semiconductor layer 102 is disposed on a buffer layer 130. The semiconductor layer 102 can be made of polycrystalline silicon (p-Si). In this case, a predetermined region may be doped with impurities. Alternatively, the semiconductor layer 102 can be made of amorphous silicon (a-Si), or it can be made of various organic semiconductor materials such as pentacene. Alternatively, the semiconductor layer 102 can be made of oxide. The gate insulating film 103 can be made of materials such as silicon oxide (SiO2). x ) or silicon nitride (SiN) x The gate 104 may be made of an insulating inorganic material or an insulating organic material. It may be made of any of a variety of conductive materials, such as magnesium (Mg), aluminum (Al), nickel (Ni), chromium (Cr), molybdenum (Mo), tungsten (W), gold (Au), or alloys thereof.

[0061] Interlayer insulating film 105 can be made of materials such as silicon oxide (SiO2). x ) or silicon nitride (SiN) x It can be made of insulating material, or it can be made of insulating organic material. Selectively removing the interlayer insulating film 105 and the gate insulating film 103 can form a contact hole through which the source region and the drain region are exposed.

[0062] Each of the source electrode 106 and the drain electrode 108 can be formed in the form of a single layer or multiple layers, can be made of an electrode material, and can be disposed on the interlayer insulating film 105. If desired, a passivation layer made of inorganic insulating material can cover the source electrode 106 and the drain electrode 108.

[0063] The first planarization layer 107-1 can be disposed on the thin-film transistor. The first planarization layer 107-1 protects the thin-film transistor and the like and has a planarized top surface. The first planarization layer 107-1 can be composed of various forms and can be made of at least one of acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polystyrene resin, and polyphenylene sulfide resin. However, this disclosure is not limited thereto.

[0064] The individual metal layers used as wires / electrodes can be disposed on the first planarization layer 107-1.

[0065] The second planarization layer 107-2 is disposed on top of the first planarization layer 107-1. The configuration with two planarization layers is due to the increased number of various signal lines as the display device 100 progresses towards higher resolutions. Therefore, it is difficult to arrange all the lines in a single layer while ensuring minimum spacing between them. Thus, an additional layer is needed. This additional layer (i.e., the second planarization layer) ensures sufficient space for the lines, making line / electrode layout design easier. Furthermore, when a dielectric material is used as the material for each of the planarization layers 107-1 and 107-2, a metal layer can be disposed between the planarization layers 107-1 and 107-2 for the purpose of generating capacitance.

[0066] An organic light-emitting element may have a structure in which an anode 112, an organic light-emitting layer 114, and a cathode 116 are sequentially disposed. That is, an organic light-emitting element may include an anode 112 formed on a planarization layer 107, an organic light-emitting layer 114 disposed on the anode 112, and a cathode 116 disposed on the organic light-emitting layer 114.

[0067] The anode 112 can be electrically connected to the drain 108 of the driving thin-film transistor via a connecting electrode. When the organic light-emitting display device 100 is a top-emitting type, the anode 112 can be made of an opaque conductive material with high reflectivity. For example, the anode 112 can be made of silver (Ag), aluminum (Al), gold (Au), molybdenum (Mo), tungsten (W), chromium (Cr), or alloys thereof. The connecting electrode can be made of the same material as each of the source 106 and drain 108.

[0068] A dam 110 is formed in the region remaining excluding the light-emitting region. Therefore, a dam hole is defined in the dam 110, exposing the anode 112 corresponding to the light-emitting region. The dam 110 can be made of materials such as silicon nitride (SiN). x ), silicon oxide (SiO) x It is made of inorganic insulating materials or organic insulating materials such as BCB, acrylic resins, or imide resins.

[0069] An organic light-emitting layer 114 is disposed on the anode 112 exposed through the dam hole of the dam 110. The organic light-emitting layer 114 may include a light-emitting layer, an electron injection layer, an electron transport layer, a hole transport layer, a hole injection layer, etc.

[0070] The cathode 116 is disposed on the organic light-emitting layer 114. When the display device 100 is a top-emitting type, the cathode 116 may be made of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO), so that light generated from the organic light-emitting layer 114 is emitted upward through the cathode 116.

[0071] An encapsulation layer 120 is disposed on the cathode 116. The encapsulation layer 120 prevents oxygen and moisture from penetrating from the outside to prevent oxidation of the light-emitting material and electrode materials. When an organic light-emitting element is exposed to moisture or oxygen, pixel shrinkage may occur, resulting in a reduced light-emitting area, or dark spots may appear in the light-emitting area. The encapsulation layer may comprise an inorganic film made of glass, metal, alumina (AlOx), or silicon (Si) based materials, or may have a structure with alternating layers of organic and inorganic films. The inorganic film acts as a barrier against moisture or oxygen penetration, while the organic film acts as a surface planarization agent for the inorganic film. The encapsulation layer is formed as a multi-layered thin film to make the movement path of moisture or oxygen longer and more complex than in a single-layer case, thereby preventing moisture / oxygen from penetrating the organic light-emitting element.

[0072] Specifically, the encapsulation layer 120 may include a first inorganic insulating film 121, an organic insulating film 122, and a second inorganic insulating film 123. The first inorganic insulating film 121, the organic insulating film 122, and the second inorganic insulating film 123 may be disposed sequentially.

[0073] A barrier film 140 is disposed on the encapsulation layer 120 to encapsulate the entire substrate 101 and the organic light-emitting element. The barrier film 140 can be implemented as a phase-retardation film or an optically isotropic film. When the barrier film has optically isotropic properties, incident light passes through the barrier film without phase retardation. Furthermore, an organic or inorganic film can be further disposed on the top or bottom surface of the barrier film. The organic or inorganic film formed on the top or bottom surface of the barrier film serves to block the penetration of external moisture or oxygen.

[0074] An adhesive layer 145 may be disposed between the barrier film 140 and the encapsulation layer 120. The adhesive layer 145 bonds the encapsulation layer 120 and the barrier film 140 together. The adhesive layer 145 may be made of a thermosetting adhesive or a naturally curing adhesive. For example, the adhesive layer 145 may be made of a material such as B-PSA (barrier pressure-sensitive adhesive). A touch panel (film), a polarizing film, a top cover, etc., may be further disposed on the barrier film 140.

[0075] Figure 4A Figure 4C illustrates the operation of the mode-based view adjustment component 500. (Refer to...) Figure 4AThe partition wall 503, the electrochromic region 504, and the electrochromic pattern 505, which are components of the viewing angle adjustment member 500, can be disposed between the first electrode film 501 and the second electrode film 502, which are components of the viewing angle adjustment member 500. The partition wall 503 is used to separate the electrochromic region 504. The electrochromic pattern 505 is disposed in the electrochromic region 504. Therefore, the distribution area of ​​the electrochromic pattern 505 can be determined based on the electrical signal between the first electrode film 501 and the second electrode film 502. For example, each of the first electrode film 501 and the second electrode film 502 can be formed by depositing a transparent electrode made of ITO (indium tin oxide) on one side of a substrate, and can have a polarity based on an external electrical signal applied to it. The substrate of each of the first electrode film 501 and the second electrode film 502 can be made of transparent polyethylene terephthalate (PET) with excellent durability.

[0076] Based on the polarity of the electricity applied between the first electrode film 501 and the second electrode film 502, the distribution area of ​​the electrochromic pattern 505 in the electrochromic region 504 can be increased or decreased. (Refer to...) Figure 4A When the electrochromic pattern 505 is uniformly distributed in the electrochromic region 504, the pattern acts as a light-blocking barrier, ensuring that light generated by the display panel 100 propagates only in a straight line. The electrochromic pattern 505 can be made of an opaque material or a carbon material (e.g., ink containing a large amount of carbon black), thus absorbing light. This mode, where light generated from the display panel 100 propagates only in a straight line, can be called a privacy mode. The electrochromic pattern 505 can behave in a way that changes according to an electrical signal. In privacy mode, a negative current can be applied to the viewing angle adjustment member 500 through the first electrode film 501 and the second electrode film 502. When a negative current is applied, the electrochromic pattern 505 is uniformly distributed in the electrochromic layer region 504 to prevent light generated from the display panel 100 from propagating beyond a certain angle.

[0077] Reference Figure 4BThe electrochromic pattern 505 of the viewing angle adjustment member 500 can be distributed in the vertical center of the electrochromic area 504, and the portion of the electrochromic area 504 near the display panel 100 that serves as a light source may not be filled with the electrochromic pattern 505. This can be referred to as a switching mode. The switching mode can refer to the mode of the viewing angle adjustment member 500 switching from a privacy mode to a shared mode as described in FIG. 4C. However, this disclosure is not necessarily limited to this. When the switching mode is selected as an intermediate mode between the privacy mode and the shared mode, the user can vaguely see the screen in the side view of the display device 10. When a negative current is applied to the viewing angle adjustment member 500 to achieve the privacy mode, the switching mode can be achieved by setting the current value to zero. In the switching mode, compared with the privacy mode, a portion of the light can propagate at a specific angle.

[0078] Referring to Figure 4C, the electrochromic pattern 505 of the viewing angle adjustment member 500 is only distributed on the top of the electrochromic area 504, and a considerable portion of it may be without the electrochromic pattern 505. This state can be referred to as a shared mode. Specifically, light generated from the display panel 100 can propagate at various angles without viewing angle limitations. Therefore, multiple users can view the same screen in shared mode.

[0079] Figures 5A to 5B This is a diagram illustrating a first embodiment in which sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500. Although a cross-section of one side is shown to illustrate the process of injecting sealant 540 into the sealing portion 530, in reality this side is completely sealed, preventing sealant 540 or the electrochromic pattern 505 from leaking outside the viewing angle adjustment member 500. (Refer to...) Figure 5A The viewing angle adjustment member 500 has a partition wall 503 and an electrochromic area 504 in its internal region. A first electrode film 501 and a second electrode film 502 are respectively disposed at the top and bottom of the partition wall 503, enabling the viewing angle adjustment member 500 to operate. A first weir 510 and a second weir 520 are arranged at a regular interval and disposed outside the partition wall 503 and the electrochromic area 504. A sealant 540 is injected into a sealing portion 530 formed between the first weir 510 and the second weir 520 to seal the sealing portion. (Refer to...) Figure 5A In the first embodiment, approximately two injection holes 550 are formed in the second electrode film 502, allowing sealant 540 to be injected from the sealant injection nozzle 800 through the holes 550. The injected sealant 540 flows along the outer edge of the viewing angle adjustment member 500 and completely surrounds the viewing angle adjustment member 500, and is cured to encapsulate it. Since the first embodiment requires only a minimum number of injection holes 550 to be formed in the second electrode film 502, process preparation can be easily performed and defects that may occur while forming the injection holes 550 in the second electrode film 502 can be reduced.

[0080] Figure 5B It is shown in the first embodiment based on Figure 5A The cutting line II-II' is a cross-sectional view of the fluid resistance based on the fluid movement direction when the sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500. (Refer to...) Figure 5B The first electrode film 501 and the second electrode film 502 define the space of the sealing portion 530. An injection hole 550 is formed in the second electrode film 502. As sealant 540 is injected into the space from the sealant injection nozzle 800 through the injection hole 550, the sealant 540 can move in a direction from the left to the right of the sealing portion 530. In this regard, based on the fluid pressure loss formula, the flow rate of the sealant can vary based on the length of the fluid channel, the coefficient of friction loss, and the diameter of the fluid channel. Arrows opposite to the direction of fluid movement in the sealing portion 530 indicate the magnitude and direction of the resistance preventing fluid movement. Figure 5A In the illustrated embodiment, only the formation of the injection hole 550 in the second electrode film 502 is shown; however, the injection hole 550 may also be formed in the first electrode film 501.

[0081] Specifically, it can be determined that the longer the fluid channel, the greater the frictional force of the fluid channel, and the greater the pressure loss of the fluid. In addition, the larger the diameter of the fluid channel, the smaller the pressure loss of the fluid.

[0082] Reference Figure 5B Multiple arrows indicate that small and uniform fluid resistance is applied to region ① near the injection port 550. It can be determined that, referring to regions ② to ③, as the sealant 540 gradually moves to the right, the fluid resistance increases with the distance the arrow moves in each of the regions adjacent to the first electrode layer 101 and the second electrode layer 102. This can be understood as the fluid resistance adjacent to the first electrode layer 101 and the second electrode layer 102 increasing due to their respective coefficients of friction. When the sealant 540 moves to region ④, the fluid resistance in the vertical center and in each of the regions adjacent to the first electrode layer 101 and the second electrode layer 102 may increase due to the greater length of the fluid channel. This may mean that as the fluid travels a greater distance, the air resistance in the sealing portion 530 becomes greater than the pressure of the sealant 540 in the sealant injection nozzle 800. To address this increase in fluid resistance, an approach can be adopted that increases the injection pressure of the sealant 540 in the sealant injection nozzle 800.

[0083] <Formula for fluid pressure loss>

[0084]

[0085] ΔP: Frictional loss pressure (kgf / m) 2 f: friction loss coefficient, l: fluid channel (pipe) length, u: flow velocity, g: gravitational acceleration (m / sec) 2 D: fluid channel (pipe) diameter, r: fluid specific gravity (kgf / m³) 3 )

[0086] Figures 6A to 6B This is a view showing a second embodiment of the injection of sealant 540 into the sealing portion 530 of the viewing angle adjustment member 500. Although a cross-section with one side cut open is shown to illustrate the process of injecting sealant 540 into the sealing portion 530, in reality that side is completely sealed, preventing leakage of sealant 540 or electrochromic pattern 505. (Refer to...) Figure 6A The partition wall 503, the electrochromic zone 504, the first weir 510, the second weir 520, the first electrode film 501, and the second electrode film 502 can be included in, for example... Figure 5A The viewing angle adjustment component 500 is shown. (And...) Figure 5A Unlike the first embodiment, in the second embodiment, a plurality of injection holes 550 can be arranged in the second electrode film 502. In the second embodiment, a plurality of injection holes 550 can be defined in the second electrode film 502, allowing air from the sealing portion 530 to escape through the holes when the sealant 540 is injected. Therefore, the sealant 540 can diffuse more easily into the sealing portion 530. Furthermore, a plurality of injection holes 550 can be formed in the second electrode film 502. Therefore, when the sealant injection nozzle 800 moves through the injection holes 550, the nozzle can inject the sealant 540 into the sealing portion 530 multiple times through the injection holes 550. (See also...) Figure 6AAn example is shown below, in which sealant 540 from sealant injection nozzle 800 has been injected into the corner of viewing angle adjustment member 500. The corner of viewing angle adjustment member 500 can refer to the point where the outer edges of the first electrode film 501 and the second electrode film 502 constituting the viewing angle adjustment member 500 intersect each other at at least an acute angle or greater. The reason for injecting sealant 540 into the respective corners of viewing angle adjustment member 500 is that the sealing portion 530 is curved at each corner, thus the direction of travel of sealant 540 is curved, and the fluid as sealant does not flow and is stagnant. When sealant 540 cannot flow well, sealant 540 may fail to fill local areas. To address this situation, sealant injection nozzle 800 would need to inject sealant 540 at a higher pressure. However, as in the second embodiment, when sealant is injected through injection holes 550 formed at the corners, stagnation of sealant 540 can be prevented without increasing the pressure of sealant injection nozzle 800. A single sealant injection nozzle 800 can move through the hole. Alternatively, the sealant injection device may include multiple injection nozzles 800 to inject sealant 550 through multiple injection holes at once.

[0087] Figure 6B It is shown in the second embodiment based on Figure 6A The cutting line III-III' is a cross-sectional view of the fluid resistance based on the fluid movement direction when the sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500. (Refer to...) Figure 6B The first electrode film 501 and the second electrode film 502 define the space of the sealing portion 530. An injection hole 550 is formed in the second electrode film 502. As sealant 540 is injected from the sealant injection nozzle 800, the sealant 540 can move along the sealing portion 530 in a left-to-right direction. In this regard, based on the fluid pressure loss formula, the flow rate of the sealant can vary based on the length of the fluid channel, the coefficient of friction loss, and the diameter of the fluid channel. Arrows opposite to the direction of fluid movement in the sealing portion 530 indicate the magnitude and direction of the resistance preventing fluid movement.

[0088] Specifically, it can be determined that the longer the fluid channel, the greater the frictional force within the channel, and the greater the pressure loss. Furthermore, the larger the diameter of the fluid channel, the smaller the pressure loss. (Refer to...) Figure 6BMultiple arrows indicate that small and uniform fluid resistance is applied to region ① near the injection port 550. Referring to regions ② to ③, the fluid resistance (i.e., the size of the arrows) can increase as the sealant 540 gradually moves to the right. However, it can be determined that air within the sealing portion 530 may escape through additional holes, making the increase in resistance negligible compared to the first embodiment. That is, in the second embodiment, the injection port 550 formed in the second electrode film 502 can have the function of injecting the sealant 540 and venting air from the sealing portion 530. When the fluid moves to region ④, an increase in fluid resistance may occur in each of the regions adjacent to the first electrode film 501 and the second electrode film 502.

[0089] Figures 7A to 7B This is a figure illustrating a third embodiment where sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500. Although a cross-section with one side cut open is shown to illustrate the process of injecting sealant 540 into the sealing portion 530, in reality that side is completely sealed, preventing leakage of sealant 540 or electrochromic pattern 505. (Refer to...) Figure 7A The partition wall 503, the electrochromic zone 504, the first weir 510, the second weir 520, the first electrode film 501, and the second electrode film 502 can be included in, for example... Figure 5A and Figure 6A The viewing angle adjustment component 500 is shown. (And...) Figure 5A Unlike the first embodiment, in the third embodiment, a plurality of injection holes 550 can be arranged in the second electrode film 502. In the third embodiment, a plurality of injection holes 550 can be defined in the second electrode film 502, allowing air from the sealing portion 530 to escape through the holes when the sealant 540 is injected. Therefore, the sealant 540 can diffuse more easily into the sealing portion 530. Furthermore, a plurality of injection holes 550 can be formed in the second electrode film 502. Therefore, when the sealant injection nozzle 800 moves through the injection holes 550, the nozzle can inject the sealant 540 into the sealing portion 530 multiple times through the injection holes 550. (See also...) Figure 6A Sealant 540 from sealant injection nozzle 800 has been injected into the corner of viewing angle adjustment member 500. However, in Figure 7A In the third embodiment, the nozzle 800 can sequentially apply the sealant 540 into all the injection holes 550. (Refer to...) Figure 7AThe diagram illustrates how, as the sealant injection nozzle 800 moves in one direction, it sequentially injects sealant 540 into injection holes 550 formed in the top surface of the second electrode film 502 of the viewing angle adjustment member 500. The reason for injecting sealant 540 into each of the plurality of injection holes 550 formed in the viewing angle adjustment member 500 is to minimize surface friction losses in terms of the length of the sealing portion 530 and fluid pressure loss, as fluid pressure loss can be minimized when sealant 540 is injected into each injection hole 550. The sealant injection device can move one sealant injection nozzle 800 to sequentially inject sealant into all injection holes 550. Alternatively, the sealant injection device can include multiple sealant injection nozzles 800 such that sealant 540 can be injected into all injection holes 550 simultaneously.

[0090] Figure 7B It is shown in the third embodiment based on Figure 7A The section line IV-IV' is a cross-sectional view of the fluid resistance based on the fluid movement direction when the sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500. (Refer to...) Figure 7B The first electrode film 501 and the second electrode film 502 define the space of the sealing portion 530. An injection hole 550 is formed in the second electrode film 502. When sealant 540 is injected from the sealant injection nozzle 800, the sealant 540 can move along the sealing portion 530 in a left-to-right direction. In this regard, based on the fluid pressure loss formula, the flow rate of the sealant can vary based on the length of the fluid channel, the coefficient of friction loss, and the diameter of the fluid channel. Arrows opposite to the direction of fluid movement in the sealing portion 530 indicate the magnitude and direction of the resistance preventing fluid movement.

[0091] Unlike the first and second embodiments, as the sealant injection nozzle 800 moves through all the plurality of injection holes 550, the sealant injection nozzle 800 can inject sealant 540 into all the plurality of injection holes 550, thus minimizing the resistance of the fluid channel.

[0092] Specifically, it can be determined that the longer the fluid channel, the greater the frictional force within the channel, and the greater the pressure loss. Furthermore, the larger the diameter of the fluid channel, the smaller the pressure loss. (Refer to...) Figure 7BMultiple arrows indicate that small and uniform fluid resistance is applied to region ① near the injection port 550. Fluid resistance may increase slightly in region ②. However, since the sealant injection nozzle 800 has moved to the injection port 550 near region ② and injected sealant 540 into it, the fluid resistance in region ③ can be minimized again. In this respect, the fluid resistance in region ③ can be similar to that in region ①. In the third embodiment, the fluid pressure loss of the sealing portion 530 can remain constant without significant fluctuations across different regions. Therefore, the sealant 540 can be injected uniformly into the entire sealing portion 530. When the sealant 540 flows smoothly into the sealing portion 530 due to continuous injection from the sealant injection nozzle 800 through multiple injection ports 550, the amount of unfilled sealant can be reduced. Therefore, it is not necessary to increase the injection pressure of the sealant injection nozzle 800. This prevents damage to the outer walls of the sealing portion 530, the first weir 510, and the second weir 520.

[0093] Figure 8 This illustrates potential damage to the first weir 510 and the second weir 520 when sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500. (Refer to...) Figure 8 An injection hole 550 is formed in the viewing angle adjustment member 500. Figure 8 The diagram shows a cross-section of the sealant injection nozzle 800 when sealant 540 is injected into the injection hole 550. When sealant 540 does not flow sufficiently into the sealing portion 530 and pressure loss occurs, the injection pressure of sealant 540 in the sealant injection nozzle 800 should be increased. This increase in injection pressure at the sealant injection nozzle 800 increases the pressure in the structure near the injection hole 550, thereby damaging the first weir 510 constituting the sealing portion 530. Consequently, sealant 540 leaks. The second weir 520 may rupture and infiltrate the partition wall 503, resulting in a structural defect in the partition wall 503.

[0094] Figures 9A to 9B This illustrates a defect that may occur when sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500, resulting from the rupture of the first weir portion 510 and the second weir portion 520. (Refer to...) Figure 9A When the second weir 502 of the sealing part 530 is damaged, causing the partition wall 503 to crack, cracks may be generated due to the cracking of the partition wall 503. Therefore, a portion of the electrochromic pattern 505 may be exposed from the viewing angle adjustment member 500.

[0095] Reference Figure 9B ,because Figure 9ACracks in the partition wall 503 cause leakage of the electrochromic pattern 505, and a portion of the electrochromic area 504 may become empty space. As a result, the viewing angle adjustment member 500 may lose its viewing angle blocking function for light emitted from the display panel 100, thus leading to a defect in the privacy mode.

[0096] Figures 10A to 10B It shows that due to Figure 8 The seal may break, and other defects may occur in the viewing angle adjustment component. Figures 10A to 10B This illustrates a defect that may occur when sealant 540 is injected into the sealing portion 530 of the viewing angle adjustment member 500, based on cracking of the first weir 510 and the second weir 520. (Refer to...) Figure 10A When the second weir 502 of the sealing section 530 is damaged, the partition wall 503 may also be damaged, and cracks may appear therein. Therefore, external moisture seeps into the electrochromic region 504 due to the cracks, thereby reducing the concentration of the electrochromic pattern 505. When the concentration of the electrochromic pattern 505 decreases, the control precision of the electrochromic pattern 505 decreases during the transition from privacy mode to switching mode and then to sharing mode. This mode switching failure may lead to a loss of viewing angle control capability.

[0097] Reference Figure 10B When external moisture due to Figure 10A When an electrochromic pattern 540 penetrates into the pattern 505 through a crack in the partition wall 503, the concentration of the electrochromic pattern 540 shifts to one side or decreases. Therefore, when an electrical signal is applied between the first electrode film 501 and the second electrode film 502 for mode switching, the viewing angle adjustment member 500 may not reliably perform the switching operation. For example, the switching from shared mode to privacy mode may not occur. This mode switching failure may result in a loss of viewing angle control.

[0098] Figure 11 The shapes of the viewing angle adjustment member 500 and the corresponding injection hole 550 corresponding to various types of display devices 10 are shown. (Refer to...) Figure 11 When the injection hole 550 is used in accordance with the above description Figures 5A to 7A When the arrangement of the injection hole 550 is set in a manner corresponding to the corner, regardless of the shape of the display device 10, the operation of the viewing angle adjustment component 500 will not fail due to damage to the weir.

[0099] Figure 12 This is a view showing the structure of a display device, which applies an embodiment of the present disclosure, installed on a vehicle.

[0100] The display device 10, with viewing angle adjustment mechanism 500, can be inserted into or mounted on the vehicle's dashboard or central instrument panel. Therefore, the driver and passengers can use the infotainment system together or separately.

[0101] The display device according to embodiments of the present disclosure can be described as follows.

[0102] A first aspect of this disclosure provides a display device, comprising: a display panel; a polarizing film disposed on the top surface of the display panel; a viewing angle adjustment member disposed on the top surface of the polarizing film; a touch panel disposed on the top surface of the viewing angle adjustment member; and a heat sink attached to the bottom surface of the display panel, wherein the viewing angle adjustment member comprises: a first electrode film; a second electrode film; and an electrochromic region disposed between the first electrode film and the second electrode film, wherein an electrochromic pattern is provided in the electrochromic region.

[0103] In one embodiment of the first aspect, the viewing angle adjustment member further includes a first weir and a second weir disposed between the first electrode film and the second electrode film.

[0104] In one embodiment of the first aspect, the first weir portion is closer to the outermost edge of the viewing angle adjustment member than the second weir portion, wherein the first weir portion and the second weir portion are spaced apart from each other to define a seal therebetween.

[0105] In one embodiment of the first aspect, at least one injection hole is formed in the first electrode film or the second electrode film.

[0106] In one embodiment of the first aspect, the injection hole is formed at a position corresponding to the position of the sealing portion.

[0107] In one embodiment of the first aspect, the sealant is filled into the sealing portion through an injection hole.

[0108] In one embodiment of the first aspect, the injection hole is configured to be adjacent to a corner where the outer edge lines of the first electrode film or the second electrode film intersect each other.

[0109] In one embodiment of the first aspect, each of the first electrode film and the second electrode film includes a substrate and a transparent electrode disposed on at least one side of the substrate.

[0110] In one embodiment of the first aspect, the electrochromic pattern comprises a carbon material.

[0111] In one embodiment of the first aspect, the distribution area of ​​the electrochromic pattern in the electrochromic region increases or decreases based on the polarity of the electricity applied between the first electrode film and the second electrode film.

[0112] A second aspect of this disclosure provides a display device, comprising: a display panel; a polarizing film disposed on the top surface of the display panel; a viewing angle adjustment member disposed on the top surface of the polarizing film; and a touch panel disposed on the top surface of the viewing angle adjustment member; wherein the viewing angle adjustment member comprises: a first electrode film; a second electrode film; a first weir and a second weir disposed between the first electrode film and the second electrode film; and an electrochromic region disposed between the first electrode film and the second electrode film, wherein an electrochromic pattern is provided in the electrochromic region.

[0113] In one embodiment of the second aspect, the first weir portion is closer to the outermost edge of the viewing angle adjustment member than the second weir portion, wherein the first weir portion and the second weir portion are spaced apart from each other to define a seal therebetween.

[0114] In one embodiment of the second aspect, at least one injection hole is formed in the first electrode film or the second electrode film.

[0115] In one embodiment of the second aspect, the injection hole is formed at a position corresponding to the position of the sealing portion.

[0116] In one embodiment of the second aspect, the sealant is filled into the sealing portion through an injection hole.

[0117] In one embodiment of the second aspect, at least one injection hole is configured to be adjacent to a corner where the outer edge lines of the first electrode film or the second electrode film intersect each other.

[0118] In one embodiment of the second aspect, each of the first electrode film and the second electrode film includes a substrate and a transparent electrode disposed on at least one side of the substrate.

[0119] In one embodiment of the second aspect, the electrochromic pattern comprises a carbon material.

[0120] In one embodiment of the second aspect, the distribution area of ​​the electrochromic pattern in the electrochromic region increases or decreases based on the polarity of the electricity applied between the first electrode film and the second electrode film.

[0121] The features, structures, effects, etc., described in the examples of this application as above are included in at least one example of this disclosure, and are not necessarily limited to one example. Furthermore, those skilled in the art to which this application pertains can combine or modify the features, structures, effects, etc., described in at least one example of this disclosure to create other examples. Therefore, such combinations and modifications should be interpreted as being included within the scope of this disclosure.

[0122] The present disclosure as described above is not limited to the embodiments and drawings presented. It will be apparent to those skilled in the art that various substitutions, modifications, and variations can be made without departing from the technical concept of the present disclosure. Therefore, the scope of the present disclosure is defined by the appended claims, and all changes or modifications made due to the meaning and scope of the claims and their equivalents should be understood to be included within the scope of this disclosure.

Claims

1. A display device, comprising: Display panel; A polarizing film is disposed on the display panel; as well as An angle adjustment component is provided on the display panel. The viewing angle adjustment component includes: First electrode film; Second electrode film; and An electrochromic region is disposed between the first electrode film and the second electrode film, wherein an electrochromic pattern is formed in the electrochromic region. The viewing angle adjustment component further includes a first weir and a second weir disposed between the first electrode film and the second electrode film, wherein the first weir and the second weir are located outside the electrochromic area, and The first weir portion and the second weir portion are spaced apart from each other to define a sealing portion between the first weir portion and the second weir portion. At least one injection hole is formed in the first electrode film or the second electrode film. The sealant is filled into the sealing part through the injection hole, and The injection hole is located at the corner where it intersects with the outer edge line of the first electrode film or the second electrode film.

2. The device according to claim 1, wherein, The injection hole is formed at a position corresponding to the position of the sealing part.

3. The device according to claim 1, wherein, Each of the first electrode film and the second electrode film includes a substrate and a transparent electrode disposed on at least one side of the substrate.

4. The device according to claim 1, wherein, The electrochromic pattern contains carbon material.

5. The device according to claim 1, wherein, The distribution area of ​​the electrochromic pattern in the electrochromic region increases or decreases based on the polarity of the electricity applied between the first electrode film and the second electrode film.

6. The device according to claim 1, wherein, The viewing angle adjustment component also includes a partition wall for separating the electrochromic area.

7. The device according to claim 1, wherein, The electrochromic pattern is evenly distributed in the electrochromic area.

8. The device according to claim 1, wherein, It has multiple injection holes, and the sealant is injected into the multiple injection holes through one or more sealant injection nozzles.

9. A vehicle comprising a display device according to any one of claims 1-8.

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