Display device

Abstract

A display device is provided, including a liquid crystal panel, a substrate disposed below the liquid crystal panel, and a reflective sheet having a hole disposed therein and disposed on a first side of the substrate. The substrate can include at least one feeding portion and at least one anti-static portion. A light source module can be disposed within an area on the first side of the substrate defined by the hole of the reflective sheet. The light source module can be provided with a light emitting diode and an insulating dome covering the light emitting diode, such that the at least one feeding portion is disposed on the first side of the substrate and contacts the light emitting diode of the light source module, and the at least one anti-static portion can be disposed within the area defined by the hole of the reflective sheet.

Description

[0001] Cross-reference to related applications

[0002] This application is a branch continuation of international application No. PCT / KR2021 / 002823 filed on March 8, 2021, which claims priority to Korean Patent Application No. 10-2020-0138630 filed with the Korean Intellectual Property Office on October 23, 2020, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This invention relates to a display device, and more particularly to a display device and its light source module capable of preventing or suppressing damage to the light source by electrostatic discharge. Background Technology

[0004] Generally speaking, a display device is an output device used to convert acquired or stored electronic information into visual information and display that visual information to a user. Display devices are used in various fields such as homes and businesses.

[0005] Display devices include monitors connected to personal computers, server computers, etc., portable terminals (e.g., laptops, navigation terminals, ordinary televisions, Internet Protocol Television (IPTV), smartphones, tablets, personal digital assistants (PDAs), or mobile phones), various display devices for reproducing images such as advertisements or movies in industrial settings, or other various audio / video systems.

[0006] A display device includes a light source module for converting electrical information into visual information, and the light source module includes multiple light sources that emit light independently.

[0007] Multiple light sources include, for example, light-emitting diodes (LEDs) or organic light-emitting diodes (OLEDs). For example, LEDs or OLEDs are mounted on a circuit board or substrate.

[0008] Static electricity may be generated during the manufacture, use, maintenance, or repair of display devices, potentially damaging the light source. To prevent or suppress this static electricity, each light source typically includes electrostatic discharge protection circuitry (e.g., a Zener diode) and an LED.

[0009] However, recently, the number of light sources has been increased to improve contrast, and as a result of the increased number of light sources, the area allocated to LEDs and Zener diodes has become narrower. Summary of the Invention

[0010] Technical issues

[0011] Therefore, one aspect of this disclosure is to provide a display device comprising a plurality of light sources, each of the plurality of light sources comprising a light-emitting diode but not a Zener diode.

[0012] One aspect of this disclosure is to provide a display device including an antistatic component for suppressing or preventing damage to multiple light sources caused by static electricity generated around the light sources.

[0013] Technical solution

[0014] According to one aspect of this disclosure, a display device includes: a liquid crystal panel, a substrate disposed below the liquid crystal panel, a reflective sheet, and a light source module. The substrate may include at least one power supply portion and at least one antistatic portion, and the reflective sheet may include a hole and be disposed on a first side of the substrate. The light source module may be disposed on the first side of the substrate within a region defined by the hole in the reflective sheet, and the light source module may include a light-emitting diode (LED) and an insulating dome covering the LED. At least one power supply portion may be disposed on the first side of the substrate and may contact the LED of the light source module, and at least one antistatic portion may be disposed on the first side of the substrate within a region defined by the hole in the reflective sheet.

[0015] According to one aspect of this disclosure, a light source device is provided, and the light source device may include a substrate, the substrate including at least one power supply portion and at least one antistatic portion. The light source device may further include a reflective sheet with an aperture disposed on a first side of the substrate. Furthermore, the light source device may also include a light source module disposed on the first side of the substrate within the area defined by the aperture of the reflective sheet, and the light source module may include a light-emitting diode (LED) and an insulating dome covering the LED. At least one power supply portion may be disposed on the first side of the substrate and may contact the LED of the light source module. Additionally, at least one antistatic portion is disposed on the first side of the substrate within the area defined by the aperture of the reflective sheet.

[0016] According to one aspect of this disclosure, a display device includes: a liquid crystal panel; a substrate disposed below the liquid crystal panel; a reflective sheet including a plurality of holes disposed on a first side of the substrate; and a plurality of light sources disposed on a first surface of the substrate and exposed through the plurality of holes in the reflective sheet. Each of the plurality of light sources may include: a light-emitting diode (LED) disposed on the first surface of the substrate within an area defined by each of the plurality of holes; and an insulating dome covering the LED. Additionally, the substrate may include at least one power supply portion disposed on the first surface of the substrate, and the at least one power supply portion may be configured to contact the LED. Furthermore, at least one antistatic portion may be disposed on the first surface of the substrate within an area defined by each of the plurality of holes.

[0017] Beneficial effects

[0018] According to one aspect of this disclosure, a display device comprising a plurality of light sources may be provided, each of the plurality of light sources comprising a light-emitting diode but not a Zener diode.

[0019] According to one aspect of this disclosure, a display device may be provided that includes an antistatic component located around a plurality of light sources to prevent or suppress damage to the light sources by static electricity. Attached Figure Description

[0020] Figure 1 The appearance of a display device according to an embodiment of the present disclosure is shown.

[0021] Figure 2 This is an exploded perspective view of a display device according to an embodiment of the present disclosure.

[0022] Figure 3 This is a side cross-sectional view of the liquid crystal panel of a display device according to an embodiment of the present disclosure.

[0023] Figure 4 This is an exploded perspective view of a light source device according to an embodiment of the present disclosure.

[0024] Figure 5 The coupling of a reflector and a light source module included in a light source device according to an embodiment of the present disclosure is shown.

[0025] Figure 6 This is a perspective view of a light source included in a light source device according to an embodiment of the present disclosure.

[0026] Figure 7 According to embodiments of this disclosure Figure 6 An exploded perspective view of the light source shown.

[0027] Figure 8 According to embodiments of this disclosure Figure 6 The light source shown along Figure 6 A side section view taken along the A-A' direction.

[0028] Figure 9 According to embodiments of this disclosure Figure 6 The light source shown along Figure 6 A side section view taken along the B-B' direction.

[0029] Figure 10 This is a top view of a light source included in a light source device according to an embodiment of the present disclosure.

[0030] Figure 11 An equivalent circuit of a light source included in a light source device according to an embodiment of the present disclosure is shown.

[0031] Figure 12An example of electrostatic discharge in a light source included in a light source device according to an embodiment of the present disclosure is shown.

[0032] Figure 13 A light source including an antistatic component is shown according to an embodiment of the present disclosure.

[0033] Figure 14 A light source comprising three or more antistatic parts is shown according to an embodiment of the present disclosure.

[0034] Figure 15 A light source including a circular antistatic part is shown according to an embodiment of the present disclosure.

[0035] Figure 16 A light source including an arc-shaped antistatic portion is shown according to an embodiment of the present disclosure.

[0036] Figure 17 A light source including an antistatic part according to an embodiment of the present disclosure is shown, a portion of which overlaps with an optical dome.

[0037] Figure 18 A light source according to an embodiment of the present disclosure is shown, comprising an antistatic portion overlapping with an optical dome and an antistatic portion not overlapping with an optical dome.

[0038] Figure 19 A light source according to an embodiment of the present disclosure is shown, comprising an antistatic portion overlapping with an optical dome and an antistatic portion not overlapping with an optical dome.

[0039] Figure 20 A light source according to an embodiment of the present disclosure is shown, the light source including three or more antistatic portions overlapping with an optical dome and three or more antistatic portions not overlapping with an optical dome.

[0040] Figure 21 A light source comprising three or more antistatic portions is shown according to an embodiment of the present disclosure, wherein a portion of the three or more antistatic portions overlaps with an optical dome.

[0041] Figure 22 A light source including an antistatic portion for protecting the feed line is shown according to an embodiment of the present disclosure.

[0042] Figure 23 It shows Figure 6 The light source shown along Figure 6 Another example of a side section taken in the B-B' direction.

[0043] Figure 24 It shows Figure 6 The light source shown along Figure 6 Another example of a side section taken in the B-B' direction. Detailed Implementation

[0044] Throughout this specification, similar reference numerals refer to similar elements. This specification does not describe all components of the embodiments, and will not describe general information or overlapping information between embodiments in the art to which this disclosure pertains. As used herein, the terms “part,” “module,” “element,” and “block” can be implemented as software or hardware, and according to embodiments, multiple “parts,” “modules,” “elements,” and “blocks” can be implemented as a single component, or a single “part,” “module,” “element,” and “block” can include multiple components.

[0045] It should be understood that when a component is referred to as "connected" to another component, it can be directly or indirectly connected to the other component. When a component is indirectly connected to another component, it can be connected to the other component via a wireless communication network.

[0046] Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated components but do not exclude the presence or addition of one or more other components.

[0047] Throughout the specification, it will also be understood that when an element is referred to as being “on” or “above” another element, it can be directly on the other element or there may be an intermediate element present.

[0048] It should be understood that although the terms "first," "second," etc., may be used in this document to describe various components, these components should not be limited by these terms. The terms mentioned above are only used to distinguish one component from another.

[0049] Unless otherwise expressly stated in the context, the singular forms “a,” “an,” and “the” include plural indicators.

[0050] The reference numerals used in the operation are provided for ease of description and do not describe the order of operations, and operations may be performed in a different order than described, unless a particular order is explicitly specified in the context.

[0051] The working principle and embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0052] Figure 1 The appearance of a display device according to an embodiment of the present disclosure is shown.

[0053] Display device 10 can be a device that processes image signals received from the outside and displays the processed signals visually as images. In the following description, a television will be used as an example of display device 10. However, display device 10 is not limited to a television. For example, display device 10 can be implemented in various types, such as a monitor, a portable multimedia device, a portable communication device, etc. That is, the type of display device 10 is not limited, as long as display device 10 can visually display images.

[0054] Furthermore, the display device 10 may be a large outdoor display (LFD) installed outdoors (e.g., on the roof of a building or at a bus stop). Here, the display device 10 is not necessarily limited to an outdoor display; the display device 10 according to the embodiments of this disclosure can be installed anywhere, including indoors, such as subway stations, shopping malls, cinemas, business premises, shops, etc.

[0055] Display device 10 can receive content data, including video and audio data, from various content sources, and output video and audio data corresponding to the video and audio data. For example, display device 10 can receive content data from a broadcast receiving antenna or wired cable, from a content playback device, or from a content provider's content server.

[0056] like Figure 1 As shown, the display device 10 may include a main body 11, a screen 12 for displaying image I, and a bracket disposed at the lower part of the main body 11 to support the main body 11.

[0057] The main body 11 can form the appearance of the display device 10, and components that enable the display device 10 to display images I or perform various functions can be installed inside the main body 11. Figure 1 The main body 11 shown can be in the shape of a flat plate. However, the shape of the main body 11 is not limited to... Figure 1 The shape shown. For example, the main body 11 can be in the shape of an arc plate.

[0058] Screen 12 can be formed on the front surface of the main body 11 and display image I. For example, screen 12 can display a still image or a moving image. In addition, screen 12 can display a 2D planar image or a 3D stereoscopic image using the user's eyes.

[0059] Multiple pixels P can be formed on screen 12, and the image I displayed on screen 12 can be formed by light emitted from the multiple pixels P. For example, the light emitted from the multiple pixels P can be combined into a mosaic and formed as image I on screen 12.

[0060] Multiple pixels P can emit light with various brightness levels and various colors. For example, each pixel in the multiple pixels P can include a self-emissive panel capable of emitting its own light (e.g., a light-emitting diode (LED) panel) or a non-emissive panel capable of transmitting or blocking light emitted by a light source device (e.g., a liquid crystal display (LCD) panel).

[0061] In order to emit light of various colors, each pixel in a plurality of pixels P can include sub-pixels P. R P G and P B .

[0062] Subpixels may include red subpixels P that can emit red light. R Green sub-pixels P that can emit green light G And blue sub-pixels P that can emit blue light B For example, red light can correspond to light with wavelengths ranging from about 620 nm (nanometers, one billionth of a meter) to about 750 nm, green light can correspond to light with wavelengths ranging from about 495 nm to about 570 nm, and blue light can correspond to light with wavelengths ranging from about 450 nm to about 495 nm.

[0063] Through the red sub-pixel P R The red light comes from the green sub-pixel P G The green light, and the light from the blue sub-pixel P B The combination of blue light allows multiple pixels P to emit light of various brightness levels and colors.

[0064] like Figure 2 As shown, various components for generating image I on screen S can be installed inside the main body 11.

[0065] For example, the main body 11 may include a light source device 100 as a surface light source, a liquid crystal panel 20 for blocking or transmitting light emitted from the light source device 100, a control component 50 for controlling the operation of the light source device 100 and the liquid crystal panel 20, and a power supply component 60 for supplying power to the light source device 100 and the liquid crystal panel 20. Furthermore, the main body 11 may include a frame 13, a frame inner mold 14, a base frame 15, and a rear cover 16 for supporting and fixing the liquid crystal panel 20, the light source device 100, the control component 50, and the power supply component 60.

[0066] The light source device 100 may include a point light source for emitting monochromatic light or white light, and may refract, reflect, and scatter light to convert the light emitted from the point light source into uniform surface light. For example, the light source device 100 may include multiple light sources for emitting monochromatic light or white light, a diffuser plate for diffusing light emitted from the multiple light sources, a reflector for reflecting light emitted from the multiple light sources and the rear surface of the diffuser plate, and an optical sheet for refracting and scattering light emitted from the front surface of the diffuser plate.

[0067] In this way, the light source device 100 can emit uniform surface light in the forward direction by refracting, reflecting and scattering the light emitted from the light source.

[0068] The configuration of the light source device 100 will be described in more detail below.

[0069] The liquid crystal panel 20 can be located in front of the light source device 100 and can block or transmit light emitted from the light source device 100 to form image I.

[0070] The front surface of the liquid crystal panel 20 can form the screen 12 of the display device 10, and the liquid crystal panel 20 can form a plurality of pixels P. The plurality of pixels P of the liquid crystal panel 20 can independently block or transmit light from the light source device 100, and the light transmitted through the plurality of pixels P can form an image I displayed on the screen 12.

[0071] For example, such as Figure 3 As shown, the liquid crystal panel 20 may include a first polarizing film 21, a first transparent substrate 22, a pixel electrode 23, a thin film transistor (TFT) 24, a liquid crystal layer 25, a common electrode 26, a color filter 27, a second transparent substrate 28, and a second polarizing film 29.

[0072] The first transparent substrate 22 and the second transparent substrate 28 can fix and support the pixel electrode 23, the thin film transistor 24, the liquid crystal layer 25, the common electrode 26, and the color filter 27. The first transparent substrate 22 and the second transparent substrate 28 can be made of tempered glass or transparent resin.

[0073] A first polarizing film 21 and a second polarizing film 29 may be respectively disposed on the outer surfaces of the first transparent substrate 22 and the second transparent substrate 28.

[0074] The first polarizing film 21 and the second polarizing film 29 can transmit specific light and block other light. For example, the first polarizing film 21 can transmit light having a magnetic field vibrating in a first direction and block other light. Furthermore, the second polarizing film 29 can transmit light having a magnetic field vibrating in a second direction and block other light, where the second direction can be orthogonal to the first direction. Therefore, the polarization direction of the light transmitted by the first polarizing film 21 can be orthogonal to the vibration direction of the light transmitted by the second polarizing film 29. Thus, light typically will not simultaneously pass through both the first polarizing film 21 and the second polarizing film 29.

[0075] The color filter 27 can be located on the inner surface of the second transparent substrate 28.

[0076] The color filter 27 may include a red filter 27R that transmits red light, a green filter 27G that transmits green light, and a blue filter 27B that transmits blue light, wherein the red filter 27R, green filter 27G, and blue filter 27B can be placed side by side. The area where the color filter 27 is formed can correspond to the aforementioned pixel P. The area where the red filter 27R is formed can correspond to the red sub-pixel P. R The area where the green filter 27G is formed can correspond to the green sub-pixel P. G Furthermore, the region in which the blue filter 27B is formed can correspond to the blue sub-pixel P. B .

[0077] A pixel electrode 23 may be disposed on the inner surface of the first transparent substrate 22, and a common electrode 26 may be disposed on the inner surface of the second transparent substrate 28.

[0078] The pixel electrode 23 and the common electrode 26 can be made of charged metallic material and can generate an electric field to change the alignment of the liquid crystal molecules 25a constituting the liquid crystal layer 25, as will be described below.

[0079] The pixel electrode 23 and the common electrode 26 can be made of a transparent material and transmit light received from the outside. For example, the pixel electrode 23 and the common electrode 26 can be made of indium tin oxide (ITO), indium zinc oxide (IZO), silver nanowires, carbon nanotubes (CNTs), graphene, or 3,4-ethylenedioxythiophene (PEDOT).

[0080] Thin-film transistors 24 may be disposed on the inner surface of the first transparent substrate 22.

[0081] The thin-film transistor 24 can transmit or block the current flowing through the pixel electrode 23. For example, by turning the thin-film transistor 24 on (closed) or off (open), an electric field can be formed or removed between the pixel electrode 23 and the common electrode 26.

[0082] Thin-film transistor 24 can be made of polycrystalline silicon and formed by semiconductor processes such as photolithography, deposition, and ion implantation.

[0083] The liquid crystal layer 25 can be formed between the pixel electrode 23 and the common electrode 26, and the liquid crystal layer 25 can be filled with liquid crystal molecules 25a.

[0084] Liquid crystals refer to an intermediate state between solid (crystal) and liquid. Most liquid crystal materials are organic compounds. The molecules of liquid crystal materials are elongated rod-shaped. Furthermore, the molecular arrangement of liquid crystal materials is irregular when viewed from one direction, but exhibits a regular crystalline pattern when viewed from another direction. Therefore, liquid crystals possess both the fluidity of liquids and the optical anisotropy of crystals (solids).

[0085] Furthermore, liquid crystals can exhibit optical properties depending on changes in the electric field. For example, the orientation of the liquid crystal molecules changes with the electric field. When an electric field is formed in the liquid crystal layer 25, the liquid crystal molecules 25a of the liquid crystal layer 25 can align according to the direction of the electric field; and when no electric field is formed in the liquid crystal layer 25, the liquid crystal molecules 25a can be arranged irregularly or according to an alignment layer (not shown). Therefore, the optical properties of the liquid crystal layer 25 can change depending on the presence or absence of an electric field passing through the liquid crystal layer 25.

[0086] A cable 20a for transmitting image data to the liquid crystal panel 20 and a display driver integrated circuit (hereinafter referred to as "driver IC") 30 for processing digital image data and outputting analog image signals may be provided at one edge of the liquid crystal panel 20.

[0087] Cable 20a can electrically connect control component 50 or power supply component 60 to driver IC 30, and also electrically connect driver IC 30 to liquid crystal panel 20. Cable 20a may include flexible flat cable or thin film cable.

[0088] The driver IC 30 can receive image data and power from the control component 50 or the power supply component 60 via cable 20a, and can also send image data and drive current to the liquid crystal panel 20 via cable 20a.

[0089] Furthermore, the cable 20a and the driver IC 30 can be implemented as a thin-film cable, a chip-on-film (COF) assembly, a cable tray package (TCP), etc. In other words, the driver IC 30 can be located on the cable 20a, but is not limited to this. Additionally, the driver IC 30 can be located on the liquid crystal panel 20.

[0090] The control component 50 may include control circuitry for controlling the operation of the liquid crystal panel 20 and the light source device 100. The control circuitry may process image data received from an external content source, send the image data to the liquid crystal panel 20, and send dimming data to the light source device 100.

[0091] The power supply assembly 60 can supply power to the liquid crystal panel 20 and the light source device 100, enabling the light source device 100 to output surface light. Furthermore, the liquid crystal panel 20 can block or transmit light emitted from the light source device 100.

[0092] The control component 50 and the power supply component 60 can be implemented as printed circuit boards, on which various circuits are mounted. For example, the power supply circuitry may include capacitors, coils, resistors, processors, and power supply circuit boards on which they are mounted. Furthermore, the control circuitry may include memory, processors, and control circuit boards on which they are mounted.

[0093] The light source device 100 will be described below.

[0094] Figure 4 This is an exploded perspective view of a light source device according to an embodiment of the present disclosure. Figure 5 The coupling of a reflector and a light source module included in a light source device according to an embodiment of the present disclosure is shown.

[0095] The light source device 100 may include a light source module 110 for generating light, a reflector 120 for reflecting light, a diffuser 130 for uniformly scattering light, and an optical sheet 140 for increasing the brightness of the emitted light.

[0096] The light source module 110 may include a plurality of light sources 111 for emitting light and a substrate 112 for supporting / fixing the plurality of light sources 111.

[0097] Multiple light sources 111 can be arranged in a preset pattern to emit light with uniform brightness. The multiple light sources 111 can be arranged such that the distance between a light source and its adjacent light sources is the same.

[0098] For example, such as Figure 4 As shown, multiple light sources 111 can be arranged in rows and columns at regular intervals. Therefore, the multiple light sources 111 can be arranged such that four adjacent light sources have a substantially square shape. Furthermore, a light source can be adjacent to four other light sources, and the distance between the light source and the four adjacent light sources can be substantially the same.

[0099] According to another example, multiple light sources 111 can be arranged in multiple rows, and the light source belonging to each row can be located on the center line of two light sources belonging to its adjacent row. Therefore, the multiple light sources 111 can be arranged such that three adjacent light sources substantially form an equilateral triangle. In this case, a light source can be adjacent to six light sources, and the distance between that light source and the six light sources can be substantially the same.

[0100] However, the arrangement pattern of the multiple light sources 111 is not limited to the above pattern, and the multiple light sources 111 can be arranged in various patterns, as long as the pattern emits light with uniform brightness.

[0101] Each light source 111 may be a device capable of emitting monochromatic light (light with a specific wavelength, such as blue light) or white light (a mixture of red, green, and blue light) in all directions when powered. For example, light source 111 may include a light-emitting diode.

[0102] The substrate 112 can fix multiple light sources 111 so that the positions of the light sources 111 do not change. In addition, the substrate 112 can supply power to individual light sources 111 to make the light sources 111 emit light.

[0103] The substrate 112 may be made of synthetic resin, tempered glass or printed circuit board (PCB), which fixes multiple light sources 111 and has conductive power lines formed thereon for supplying power to the light sources 111.

[0104] The reflector 120 can reflect light emitted from multiple light sources 111 in the forward direction or in a direction close to the forward direction.

[0105] In the reflector 120, a plurality of through holes 120a can be formed at positions corresponding to the plurality of light sources 111 of the light source module 110, respectively. Furthermore, the light sources 111 of the light source module 110 can pass through the through holes 120a to protrude from the reflector 120 in the forward direction.

[0106] For example, such as Figure 5 As shown in the upper part, during the assembly of the reflector 120 and the light source module 110, multiple light sources 111 of the light source module 110 can be inserted into multiple through holes 120a formed in the reflector 120. Therefore, as Figure 5 As shown in the lower part, the substrate 112 of the light source module 110 can be located behind the reflector 120, while the plurality of light sources 111 of the light source module 110 can be located in front of the reflector 120.

[0107] Therefore, multiple light sources 111 can emit light in front of the reflector 120.

[0108] Multiple light sources 111 can emit light in various directions in front of the reflector 120. Light can be emitted from the light sources 111 toward the reflector 120 or toward the diffuser 130, and the reflector 120 can reflect the light emitted toward the reflector 120 toward the diffuser 130.

[0109] Light emitted from light source 111 can pass through various objects, such as diffuser 130 and optical sheet 140. When incident light passes through diffuser 130 and optical sheet 140, a portion of the incident light can be reflected from the surfaces of diffuser 130 and optical sheet 140. Reflector 120 can reflect the light reflected by diffuser 130 and optical sheet 140.

[0110] The diffuser plate 130 can be located in front of the optical module 110 and the reflector 120, and uniformly diffuses the light emitted from the light source 111 of the light source module 110.

[0111] As described above, the plurality of light sources 111 can be located at preset positions on the rear surface of the light source device 100. Although the plurality of light sources 111 are arranged at equal intervals on the rear surface of the light source device 100, uneven brightness may occur depending on the position of the plurality of light sources 111.

[0112] The diffuser plate 130 can diffuse light emitted from multiple light sources 111 within itself to eliminate brightness unevenness caused by the multiple light sources 111. In other words, the diffuser plate 130 can uniformly emit uneven light emitted from multiple light sources 111 through its front surface.

[0113] Optical sheet 140 may include various sheets for improving brightness and brightness uniformity. For example, optical sheet 140 may include diffuser 141, first prism sheet 142, second prism sheet 143, and reflective polarizer 144.

[0114] The diffuser 141 can diffuse light to obtain uniform brightness. Light emitted from each light source 111 can be diffused by the diffuser plate 130 and again by the diffuser 141 included in the optical sheet 140.

[0115] The first prism sheet 142 and the second prism sheet 143 can concentrate the light diffused by the diffuser sheet 141 to increase brightness. The first prism sheet 142 and the second prism sheet 143 can include a prism pattern in the shape of a triangular prism, and multiple prism sheets can be arranged adjacent to each other to form multiple bands.

[0116] The reflective polarizer 144 can be a polarizing film that transmits a portion of the incident light and reflects the rest to improve brightness. For example, the reflective polarizer 144 can transmit polarized light propagating along a predetermined polarization direction of the reflective polarizer 144 and reflect polarized light propagating along a polarization direction different from the predetermined polarization direction of the reflective polarizer 144. Furthermore, the light reflected by the reflective polarizer 144 can be recirculated within the light source device 100, and the brightness of the display device 10 can be improved through this light recirculation.

[0117] Optical film 140 is not limited to Figure 4 The sheet or film shown may include various sheets or films, such as protective sheets.

[0118] Figure 6 This is a perspective view of a light source included in a light source device according to an embodiment of the present disclosure. Figure 7 yes Figure 6 An exploded perspective view of the light source shown. Figure 8 yes Figure 6 The light source shown along Figure 6 A side section view taken along the A-A' direction. Figure 9 yes Figure 6 The light source shown along Figure 6 A side section view taken along the B-B' direction. Figure 10 This is a top view of a light source included in a light source device according to an embodiment of the present disclosure. Figure 11 An equivalent circuit of a light source included in a light source device according to an embodiment of the present disclosure is shown. Figure 12 An example of electrostatic discharge in a light source included in a light source device according to an embodiment of the present disclosure is shown.

[0119] The following will refer to Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 The light source 111 of the light source device 100 is described.

[0120] As described above, the light source module 110 may include a plurality of light sources 111. The plurality of light sources 111 may protrude from the rear of the reflector 120 toward the front of the reflector 120 through the through-hole 120a. Therefore, as... Figure 6 and Figure 7 As shown, some areas of the light source 111 and the substrate 112 can be exposed in the front direction of the reflector 120 through the through-hole 120a.

[0121] The light source 111 may include an electrical / mechanical structure located in the area defined by the through-hole 120a of the reflector 120.

[0122] Each of the multiple light sources 111 may include a light-emitting diode 210 and an optical dome 220.

[0123] To improve the uniformity of the surface light emitted by the light source device 100 and enhance contrast through local dimming, the number of light sources 111 can be increased. As the number of light sources 111 increases, the area occupied by each of the multiple light sources 111 becomes narrower.

[0124] To reduce the area occupied by each of the multiple light sources 111, the light source 111 may not include an anti-static circuit (e.g., a Zener diode) for preventing or suppressing damage to the light-emitting diode 210 by electrostatic discharge. In other words, the light source 111 may not include a Zener diode connected in parallel with the light-emitting diode 210.

[0125] The light-emitting diode 210 may include a P-type semiconductor and an N-type semiconductor for emitting light through the recombination of holes and electrons. Furthermore, the light-emitting diode 210 may include a pair of electrodes 210a for supplying holes and electrons to the P-type and N-type semiconductors.

[0126] The light-emitting diode 210 can convert electrical energy into light energy. In other words, the light-emitting diode 210 can emit light with maximum intensity at a preset wavelength that is powered. For example, the light-emitting diode 210 can emit blue light with a peak at a wavelength that displays blue (e.g., wavelengths in the range of 450 nm to 495 nm).

[0127] The light-emitting diode 210 can be directly attached to the substrate 112 using a chip-on-board (COB) method. In other words, the light source 111 may include the light-emitting diode 210, wherein the light-emitting diode chip or light-emitting diode die is directly attached to the substrate 112 without any encapsulation.

[0128] To reduce the area occupied by the light-emitting diode 210, the light-emitting diode 210 can be manufactured as a flip-chip type that does not include a Zener diode. The flip-chip type light-emitting diode 210 can be manufactured by soldering the electrode pattern of the semiconductor device onto the substrate 112 as is, without the use of intermediate media such as metal leads (wires) or ball grid arrays (BGAs), when attaching the light-emitting diode 210, which is a semiconductor device, to the substrate 112.

[0129] In this way, by omitting the metal leads (wires) or ball grid array, each light source 111, including the flip-chip type light-emitting diode 210, can be miniaturized.

[0130] In order to miniaturize the light source 111, a light source module 110 in which a flip-chip type light-emitting diode 210 is attached to a substrate 112 by means of a COB method can be manufactured.

[0131] Feed lines 230 and feed sections 240 for supplying power to flip-chip type light-emitting diodes 210 can be provided on substrate 112.

[0132] Feed lines 230 for supplying electrical signals and / or power from the control component 50 and / or the power supply component 60 to the light-emitting diode 210 can be provided on the substrate 112.

[0133] like Figure 8 As shown, the substrate 112 can be formed by alternately stacking an insulating layer 251 that is non-conductive and a conductive layer 252 that is conductive.

[0134] Lines or patterns through which electrical power and / or electrical signals can be transmitted can be formed on the conductive layer 252. The conductive layer 252 can be formed of various materials that are conductive. For example, the conductive layer 252 can be formed of various metallic materials, such as copper (Cu), tin (Sn), aluminum (Al), or alloys thereof.

[0135] The dielectric layer of insulating layer 251 may insulate between the lines or patterns of conductive layer 252. Insulating layer 251 may be formed of a dielectric for electrical insulation (e.g., FR-4).

[0136] The feeder wire 230 can be implemented by lines or patterns formed on the conductive layer 252.

[0137] The feed line 230 can be electrically connected to the light-emitting diode 210 through the feed section 240.

[0138] The power supply section 240 can be formed by exposing the power supply wire 230 to the outside.

[0139] A protective layer 253 may be formed on the outermost surface of the substrate 112 to prevent damage to the substrate 112 from external impacts, chemical effects (e.g., corrosion) and / or optical effects. The protective layer 253 may include photoresist (PSR).

[0140] like Figure 8 As shown, the protective layer 253 can cover the feeder wire 230 to prevent the feeder wire 230 from being exposed to the outside.

[0141] In order for the feed line 230 to make electrical contact with the light-emitting diode 210, a window can be formed in the protective layer 253 to expose a portion of the feed line 230 to the outside. The portion of the feed line 230 exposed to the outside through the window of the protective layer 253 can form a feed section 240.

[0142] A conductive adhesive material 240a can be applied to the feed section 240 to achieve electrical contact between the exposed feed wire 230 and the electrode 210a of the light-emitting diode 210. The conductive adhesive material 240a can be applied to the window of the protective layer 253.

[0143] The electrode 210a of the light-emitting diode 210 can contact the conductive adhesive material 240a, and the light-emitting diode 210 can be electrically connected to the feed line 230 through the conductive adhesive material 240a.

[0144] The conductive adhesive material 240a may include, for example, a conductive solder, but is not limited thereto. Furthermore, the conductive adhesive material 240a may include a conductive epoxy resin adhesive.

[0145] The light-emitting diode 210 can be powered through the feed line 230 and the feed section 240, and the light-emitting diode 210 can receive power to emit light. A pair of feed sections 240 can be provided, each corresponding to a pair of electrodes 210a included in the flip-chip type light-emitting diode 210.

[0146] The optical dome 220 can cover the light-emitting diode 210. The optical dome 220 can prevent or suppress damage to the light-emitting diode 210 by external mechanical and / or chemical forces.

[0147] The optical dome 220 can be, for example, a dome shape obtained by cutting a sphere excluding its center with a plane, or a hemispherical shape obtained by cutting a sphere including its center with a plane. The vertical cross-section of the optical dome 220 can be, for example, a portion of a circle or a semicircle.

[0148] The optical dome 220 can be formed of silicon or epoxy resin. For example, the optical dome 220 can be formed by spraying molten silicon or molten epoxy resin onto the light-emitting diode 210 via a nozzle or the like and then curing the sprayed silicon or epoxy resin.

[0149] Therefore, the optical dome 220 can have various shapes depending on the viscosity of the liquid silicone or epoxy resin. For example, when the optical dome 220 is made of silicon having a thixotropic index of about 2.7 to about 3.3 (preferably 3.0), the optical dome 220 can have a dome ratio of about 2.5 to about 3.1 (preferably 2.8), where the dome ratio represents the ratio of the height of the dome to the diameter of the bottom side surface of the dome (height of the dome / diameter of the bottom side surface of the dome). For example, the diameter of the bottom side surface of the optical dome 220 made of silicon having a thixotropic index of about 2.7 to about 3.3 (preferably 3.3) can be about 2.5 mm, and the height of the optical dome 220 can be about 0.7 mm.

[0150] The optical dome 220 can be optically transparent or semi-transparent. Light emitted from the light-emitting diode 210 can pass through the optical dome 220 and be emitted to the outside.

[0151] At this time, the dome-shaped optical dome 220 can refract light like a lens. For example, light emitted from the light-emitting diode 210 can be refracted and scattered by the optical dome 220.

[0152] In this way, the optical dome 220 can protect the light-emitting diode 210 from external mechanical, chemical and / or electrical effects, and scatter the light emitted from the light-emitting diode 210.

[0153] Around the optical dome 220, an antistatic component 260 can be formed to protect the light-emitting diode 210 from electrostatic discharge.

[0154] The antistatic component 260 can absorb the electrical shock caused by electrostatic discharge generated around the optical dome 220.

[0155] As described above, the optical dome 220 protects the light-emitting diode 210 from external electrical influences. Charge generated by electrostatic discharge does not pass through the optical dome 220 but can flow along its outer surface. This charge flowing along the outer surface of the optical dome 220 can reach the light-emitting diode 210 along the boundary between the optical dome 220 and the substrate 112. The light-emitting diode 210 may be damaged by electrical shocks caused by the charge penetrating along the boundary between the optical dome 220 and the substrate 112. To prevent or suppress this charge flow (i.e., current), an antistatic component 260 can be disposed around the optical dome 220.

[0156] The antistatic component 260 may include an antistatic wire 270 and an antistatic part 280.

[0157] The antistatic wire 270 provides a current path for electrostatic discharge generated around the optical dome 220. In other words, the antistatic wire 270 can guide the charge generated by electrostatic discharge to ground. The antistatic wire 270 can be formed of the same material as the feed wire 230. For example, the antistatic wire 270 can be formed of various metallic materials, such as copper (Cu), tin (Sn), aluminum (Al), or alloys thereof.

[0158] For example, the substrate 112 can be formed by alternately stacking a non-conductive insulating layer 251 and a conductive layer 252. The conductive layer 252 can be formed from various metallic materials, such as copper (Cu), tin (Sn), aluminum (Al), or alloys thereof.

[0159] The antistatic line 270 can be achieved by lines or patterns formed on the conductive layer 252.

[0160] like Figure 9 As described above, the antistatic wire 270 can be exposed to the outside through the antistatic part 280.

[0161] The protective layer 253 may cover the antistatic wire 270 to prevent it from being exposed to the outside. A window may be formed in the protective layer 253 to form an antistatic portion 280 for capturing current generated by electrostatic discharge. The antistatic wire 270 may be exposed to the outside through the window of the protective layer 253, and a portion of the exposed antistatic wire 270 may form the antistatic portion 280.

[0162] Thus, the antistatic part 280 can be formed by exposing a portion of the antistatic wire 270 to the outside. The antistatic part 280 can be provided separately from the power supply part 240 that contacts the light-emitting diode 210, and the antistatic part 280 can be in contact with the light-emitting diode 210.

[0163] like Figure 10 As shown, the antistatic part 280 may include a first antistatic part 281 and a second antistatic part 282. The first antistatic part 281 and the second antistatic part 282 may be located on both sides of the optical dome 220.

[0164] The first antistatic part 281 and the second antistatic part 282 can be spaced apart from each other to the greatest extent on the circumference of the virtual circle surrounding the light source 111. For example, the first antistatic part 281 and the second antistatic part 282 can be positioned such that they form an angle of about 180 degrees relative to each other along the circumference of the virtual circle surrounding the optical dome 220.

[0165] However, the arrangement of the first antistatic part 281 and the second antistatic part 282 is not limited to... Figure 10 The arrangement shown is such that the first antistatic part 281 and the second antistatic part 282 can have any arrangement capable of preventing or suppressing the flow of current caused by electrostatic discharge along the boundary between the feed line 230 or the optical dome 220 and the substrate 112 to the light-emitting diode 210. For example, the first antistatic part 281 and the second antistatic part 282 can be arranged to form an angle of about 90 degrees or 120 degrees with each other along the circumference of the virtual circle surrounding the optical dome 220.

[0166] The size of the antistatic part 280 can depend on various factors. For example, a larger antistatic part 280 can increase the potential difference that prevents or suppresses the flow of current generated by electrostatic discharge to the light-emitting diode 210. In other words, as the size of the antistatic part 280 increases, its antistatic performance can be improved.

[0167] Meanwhile, as the size of the antistatic part 280 increases, the optical interference of the antistatic part 280 will increase accordingly. For example, if the antistatic part 280 is formed of copper, the antistatic part 280 may have the inherent color of copper (e.g., brown). In this case, monochromatic light (e.g., blue light) emitted from the light source 111 can be reflected from the antistatic part 280.

[0168] When monochromatic light is reflected from the antistatic unit 280, the inherent color of the antistatic unit 280 can be added. For example, the monochromatic light emitted from the light source 111 can be blue light with peaks in the wavelength range from 450 nm to 495 nm. In this case, the spectrum of the light reflected from the antistatic unit 280 can have multiple peaks, and at least some of the multiple peaks can deviate from the wavelength range of 450 nm to 495 nm. In other words, due to the antistatic unit 280, light with peaks deviating from the wavelength range of monochromatic light can be emitted.

[0169] Thus, due to the antistatic unit 280, the spectrum of light emitted from the light source 111 may be distorted, which will reduce the color gamut of the display device 10. In addition, the distortion of the spectrum of light emitted from the light source 111 may cause moiré (non-uniformity) phenomenon.

[0170] Therefore, the dimensions of the antistatic part 280 can be determined by taking into account antistatic properties and color distortion.

[0171] The dimensions of the antistatic part 280, determined by taking into account antistatic properties, can depend on the dimensions of the optical dome 220.

[0172] The ratio of the area of ​​the antistatic part 280 to the area of ​​the bottom side surface of the optical dome 220 is preferably at least 1:0.0016 or greater. The bottom side surface of the optical dome 220 has a diameter of 2.5 mm (radius of 1250 µm and area of ​​approximately 4,900,000 µm). 2 In the case of an antistatic part 280, the area can be approximately 7,900 µm. 2 Or larger. When the antistatic portion 280 is circular, its diameter can be approximately 50 µm or larger. Furthermore, when the antistatic portion 280 is square, its side length can be approximately 90 µm or larger. For example, the area of ​​the antistatic portion 280 can preferably be approximately 62,500 µm. 2 (The ratio of the area of ​​the antistatic part 280 to the area of ​​the bottom side surface of the optical dome 220 is approximately 1:0.013). When the antistatic part 280 is circular, its diameter is preferably approximately 140 µm. Furthermore, when the antistatic part 280 is square, its side length is preferably approximately 250 µm.

[0173] The above ratio is an example of the ratio of the area of ​​the antistatic part 280 to the area of ​​the bottom side surface of the optical dome 220, and the ratio of the area of ​​the antistatic part 280 to the area of ​​the bottom side surface of the optical dome 220 is not limited to the above example.

[0174] The location of the antistatic part 280 (distance from the optical dome 220), determined by taking into account the antistatic performance, can depend on the size of the optical dome 220.

[0175] The antistatic portion 280 can have high antistatic performance at a distance close to the outer surface of the optical dome 220. However, if the antistatic portion 280 is located inside the outer surface of the optical dome 220, optical interference can occur. Therefore, the antistatic portion 280 can preferably be located outside the contour of the optical dome 220. At least a portion of the antistatic portion 280 can preferably be exposed outside the area defined by the optical dome 220.

[0176] Furthermore, in order to prevent or suppress the charge generated by electrostatic discharge from reaching the power supply section 240, preferably, the shortest distance from the profile of the optical dome 220 to the antistatic section 280 is shorter than the shortest distance from the profile of the optical dome 220 to the power supply section 240.

[0177] The shortest distance from the outline of the optical dome 220 to the antistatic part 280 can be less than the radius of the optical dome 220. When the diameter of the bottom side of the optical dome 220 is 2.5 mm (when the radius of the optical dome 220 is 1250 µm), the distance from the outline of the optical dome 220 to the antistatic part 280 can be approximately 1250 µm or less. For example, the shortest distance from the outline of the optical dome 220 to the antistatic part 280 can preferably be 500 µm or less.

[0178] The equivalent circuit of the light source 111, including the light-emitting diode 210 and the antistatic component 260, is as follows: Figure 11 (a) and Figure 11 As shown in (b) of the diagram.

[0179] The light-emitting diode 210 can be electrically connected to the feed line 230 through the feed section 240, and the first antistatic section 281 and the second antistatic section 282 can be located around the light-emitting diode 210.

[0180] like Figure 11 As shown in (a), the first antistatic part 281 and the second antistatic part 282 can be grounded via the antistatic line 270. The charge captured by the first antistatic part 281 and the second antistatic part 282 can flow to the ground along the antistatic line 270.

[0181] In addition, such as Figure 11As shown in (b), the antistatic line 270 connected to the first antistatic section 281 and the second antistatic section 282 can be coupled to ground via parasitic capacitance, rather than being directly connected to ground. The charge captured by the first antistatic section 281 and the second antistatic section 282 can flow to ground along the antistatic line 270 via parasitic capacitance.

[0182] The electrostatic discharge tolerance of the light source 111 can be improved by using the antistatic component 260.

[0183] For example, such as Figure 12 As shown, when a negatively charged object CO approaches or comes into contact with the light source 111, negative charges can be emitted from the charged object CO.

[0184] The emitted negative charge cannot pass through the interior of the optical dome 220 made of non-conductive material, but can move along the outer surface of the optical dome 220.

[0185] Negative charges moving along the outer surface of the optical dome 220 can move along the outer surface of the substrate 112 at the boundary between the optical dome 220 and the substrate 112 to the antistatic part 280, or move along the boundary between the optical dome 220 and the substrate 112 to the power supply part 240.

[0186] When the antistatic part 280 is close to the outer surface of the optical dome 220, most of the negative charge can move to the antistatic part 280, and a very small portion of the negative charge can move to the power supply part 240. In other words, the current generated by electrostatic discharge can flow to ground through the antistatic part 280, and a very small current can flow to the light-emitting diode 210 through the power supply part 240.

[0187] Therefore, the electrostatic discharge tolerance of the light source 111 can be improved. In other words, the voltage that the light source 111 can withstand due to electrostatic discharge can be increased.

[0188] According to experiments, the electrostatic discharge tolerance of a light source with an optical dome having a bottom side diameter of 2.5 mm and a height of 0.7 mm was measured to be approximately 3 kV. Meanwhile, when an antistatic part measuring 0.5 mm × 0.5 mm (width × height) is located within 0.5 mm of an optical dome of the same size, the electrostatic discharge tolerance of the corresponding light source increases to approximately 10 kV.

[0189] The arrangement and shape of the antistatic part 280, which is used to improve the electrostatic discharge resistance of the light source 111, can be changed.

[0190] The various arrangements and shapes of the antistatic section 280 will be described below.

[0191] Figure 13 A light source including an antistatic component is shown according to an embodiment of the present disclosure. Figure 14 A light source comprising three or more antistatic parts is shown according to an embodiment of the present disclosure.

[0192] Figure 6 and Figure 10 A first antistatic part 281 and a second antistatic part 282 are shown located around the light source 111; however, the number of antistatic parts 280 is not limited to this. Figure 6 and Figure 10 The quantity shown.

[0193] For example, such as Figure 13 As shown, the antistatic component 260 may include a third antistatic part 283 located around the light source 111. The structure (side section) and shape of the third antistatic part 283 may be similar to... Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section) and shape.

[0194] The third antistatic part 283 can be located in the direction where electrostatic discharge mainly occurs.

[0195] For example, in the event that electrostatic discharge frequently occurs at a specific location of the light source device 100, the third antistatic part 283 can be positioned toward that specific location. In other words, the third antistatic part 283 can be positioned closer to that specific location than the light-emitting diode 210 and / or the power supply part 240 of the light source 111.

[0196] Furthermore, in cases where electrostatic discharge occurs more frequently outside the light source device 100 than in the central portion of the light source device 100, the antistatic part 280 can be positioned closer to the outside of the light source device 100 than the light-emitting diode 210 and / or the power supply part 240 of the light source 111.

[0197] Therefore, due to the positioning of the third antistatic part 283, the antistatic component 260 can protect the light-emitting diode 210 from the effects of electrostatic discharge that frequently occurs at a specific location.

[0198] Furthermore, by reducing the number of antistatic parts 280, optical interference caused by the inherent color of the antistatic parts 280 can be reduced. Therefore, the color distortion of the light emitted from the light source device 100 can be reduced.

[0199] In addition, such as Figure 14 As shown, the antistatic component 260 may include three or more fourth antistatic parts 284a, 284b, and 284c disposed around the light source 111. The structure and shape of each of the three or more fourth antistatic parts 284a, 284b, and 284c may be the same as the structure and shape of the first antistatic part 281 and the second antistatic part 282 described above.

[0200] Three or more fourth antistatic parts 284a, 284b and 284c may surround the optical dome 220.

[0201] Three or more fourth antistatic portions 284a, 284b, and 284c may be spaced apart from each other to the greatest extent possible on the circumference of the virtual circle surrounding the optical dome 220. For example, three or more fourth antistatic portions 284a, 284b, and 284c may be positioned substantially equidistantly along the circumference of the virtual circle surrounding the optical dome 220. The three fourth antistatic portions 284a, 284b, and 284c may be positioned to form an angle of approximately 120 degrees with respect to each other along the circumference of the virtual circle surrounding the optical dome 220. Furthermore, as Figure 14 As shown, the six antistatic parts can be positioned at an angle of approximately 60 degrees relative to each other along the circumference of the virtual circle surrounding the optical dome 220. In this case, the light-emitting diode 210 and / or the power supply part 240 can be located at the center of the virtual circle surrounding the optical dome 220.

[0202] Because three or more fourth antistatic portions 284a, 284b, and 284c are located around the optical dome 220, the antistatic member 260 can protect the light-emitting diode 210 from electrostatic discharge generated in substantially all directions relative to the optical dome 220. In other words, since the three or more fourth antistatic portions 284a, 284b, and 284c are located around the optical dome 220, the distance from the location where electrostatic discharge occurs on the outer surface of the optical dome 220 to the three or more fourth antistatic portions 284a, 284b, and 284c can be reduced. Therefore, a portion of the electrostatic discharge charge captured by the three or more fourth antistatic portions 284a, 284b, and 284c can be further increased, and the electrostatic discharge tolerance of the light source 111 can be further improved.

[0203] Optical interference caused by three or more fourth antistatic parts 284a, 284b, and 284c can be eliminated by reducing the size of the three or more fourth antistatic parts 284a, 284b, and 284c. In other words, the size of three or more fourth antistatic parts 284a, 284b, and 284c can be reduced such that the total area of ​​the three or more fourth antistatic parts 284a, 284b, and 284c becomes a predetermined area.

[0204] Figure 15 A light source including a circular antistatic part is shown according to an embodiment of the present disclosure. Figure 16 A light source including an arc-shaped antistatic portion is shown according to an embodiment of the present disclosure.

[0205] Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 are both substantially rectangular in shape; however, the shape of the antistatic part 280 is not limited to... Figure 6 and Figure 10 The shape shown.

[0206] For example, such as Figure 15 As shown, the antistatic component 260 may include a fifth antistatic portion 285 and a sixth antistatic portion 286, which are substantially circular in shape, respectively. The structure (side cross-section) of the circular fifth antistatic portion 285 and the sixth antistatic portion 286 may be similar to... Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section).

[0207] Because the circular antistatic part is non-directional, the fifth antistatic part 285 and the sixth antistatic part 286 can easily capture the charge generated by the electrostatic discharge that occurs around the fifth antistatic part 285 and the sixth antistatic part 286.

[0208] The shape of the antistatic part 280 is not limited to rectangle and circle. For example, the shape of the antistatic part 280 can be polygonal, including triangle, rectangle, pentagon, hexagon, etc. In addition, the shape of the antistatic part 280 can be circular, elliptical, semi-circular, or a part of a circle, etc.

[0209] In addition, such as Figure 16 As shown, the antistatic component 260 may include a seventh antistatic part 287 and an eighth antistatic part 288 surrounding the optical dome 220, each of which is substantially arc-shaped.

[0210] The structure (side section) of the arc-shaped antistatic part 280 can be combined with... Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section).

[0211] Unlike the three or more fourth antistatic parts 284a, 284b and 284c arranged at substantially equal intervals on the circumference of the virtual circle surrounding the optical dome 220, Figure 16 Each of the seventh antistatic part 287 and the eighth antistatic part 288 shown can be an arc shape surrounding the virtual circle of the optical dome 220.

[0212] Because the seventh antistatic part 287 and the eighth antistatic part 288 are provided in an arc shape surrounding the optical dome 220, the light-emitting diode 210 can be protected from electrostatic discharge occurring in all directions relative to the optical dome 220. In other words, since the arc-shaped seventh antistatic part 287 and the eighth antistatic part 288 are located around the optical dome 220, the distance from the location where electrostatic discharge occurs on the outer surface of the optical dome 220 to the seventh antistatic part 287 and the eighth antistatic part 288 can be greatly reduced. Therefore, a portion of the electrostatic discharge charge captured by the seventh antistatic part 287 and the eighth antistatic part 288 can be further increased, and the electrostatic discharge tolerance of the light source 111 can be further improved.

[0213] However, the shape of the antistatic part 280 is not limited to an arc shape, and the antistatic part 280 can be an annular shape. In other words, the antistatic part 280 can be an annular shape surrounding the optical dome 220.

[0214] Figure 17 A light source including an antistatic part according to an embodiment of the present disclosure is shown, a portion of which overlaps with an optical dome. Figure 18 A light source according to an embodiment of the present disclosure is shown, comprising an antistatic portion overlapping with an optical dome and an antistatic portion not overlapping with an optical dome. Figure 19 A light source according to an embodiment of the present disclosure is shown, comprising an antistatic portion overlapping with an optical dome and an antistatic portion not overlapping with an optical dome. Figure 20 A light source according to an embodiment of the present disclosure is shown, the light source including three or more antistatic portions overlapping with an optical dome and three or more antistatic portions not overlapping with an optical dome. Figure 21 A light source comprising three or more antistatic portions is shown according to an embodiment of the present disclosure, wherein a portion of the three or more antistatic portions overlaps with an optical dome.

[0215] Figure 6 and Figure 10 A first antistatic part 281 and a second antistatic part 282 that do not overlap with the optical dome 220 are shown, and the relative arrangement of the optical dome 220 and the antistatic part 280 is not limited to... Figure 6 and Figure 10 The layout shown.

[0216] For example, such as Figure 17 As shown, the antistatic component 260 may include a ninth antistatic part 289 and a tenth antistatic part 290, a portion of which overlaps with the optical dome 220. The structure (side section) of the ninth antistatic part 289 and the tenth antistatic part 290 may be consistent with... Figure 6 and Figure 10The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section).

[0217] The ninth antistatic portion 289 and the tenth antistatic portion 290, which partially overlap with the optical dome 220, can be located at the region where the outer surface of the optical dome 220 intersects with the substrate 112. As described above, the charge generated by electrostatic discharge can move along the outer surface of the optical dome 220 to the boundary between the optical dome 220 and the substrate 112. Since the ninth antistatic portion 289 and the tenth antistatic portion 290 are located at the boundary between the outer surface of the optical dome 220 and the substrate 112, the charge moving along the outer surface of the optical dome 220 can be moved to the ninth antistatic portion 289 and the tenth antistatic portion 290. Therefore, the probability that the charge moving along the outer surface of the optical dome 220 will be captured by the antistatic member 260 can be further increased. In addition, the antistatic performance of the antistatic member 260 can be improved, and the electrostatic discharge tolerance of the light source 111 can be improved.

[0218] In addition, such as Figure 18 As shown, the antistatic component 260 may include a first antistatic portion 281 and a second antistatic portion 282 located on the outer side of the outer surface of the optical dome 220, and an eleventh antistatic portion 291 and a twelfth antistatic portion 292 located on the inner side of the outer surface of the optical dome 220. The structure (side section) and shape of the eleventh antistatic portion 291 and the twelfth antistatic portion 292 may be similar to... Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section) and shape.

[0219] As described above, the first antistatic part 281 and the second antistatic part 282 can capture charges moving outward from the outer surface of the optical dome 220. Furthermore, the eleventh antistatic part 291 and the twelfth antistatic part 292 can capture charges moving inward from the outer surface of the optical dome 220 along the boundary between the optical dome 220 and the substrate 112.

[0220] Therefore, the antistatic member 260, including the antistatic portions 281, 282, 291, and 292 located on the outer and inner sides of the outer surface of the optical dome 220, can capture a large portion of the charge generated by electrostatic discharge. Thus, the antistatic performance of the antistatic member 260 can be improved, and the electrostatic discharge tolerance of the light source 111 can be enhanced.

[0221] like Figure 19 As shown, the antistatic component 260 may include a third antistatic portion 283 located on the outer side of the outer surface of the optical dome 220, and a thirteenth antistatic portion 293 located on the inner side of the outer surface of the optical dome 220. The structure (side section) and shape of the thirteenth antistatic portion 293 may be similar to... Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section) and shape.

[0222] By minimizing the number of antistatic parts 280, optical interference caused by the inherent color of the antistatic parts 280 can be reduced. Therefore, the color distortion of the light emitted from the light source device 100 can be reduced.

[0223] like Figure 20 As shown, the antistatic component 260 may include three or more fourth antistatic parts 284a, 284b, and 284c located outside the light source 111, and three or more fourteenth antistatic parts 294a, 294b, and 294c located inside the light source 111. The structure and shape of the three or more fourth antistatic parts 284a, 284b, and 284c and the three or more fourteenth antistatic parts 294a, 294b, and 294c may be the same as the structure and shape of the first antistatic part 281 and the second antistatic part 282 described above.

[0224] Three or more fourth antistatic units 284a, 284b, and 284c may surround the optical dome 220. Three or more fourteenth antistatic units 294a, 294b, and 294c may surround the light-emitting diode 210 and the power supply unit 240. The arrangement of the three or more fourth antistatic units 284a, 284b, and 284c may be consistent with... Figure 14 The arrangement of the three or more fourth antistatic parts 284a, 284b and 284c shown is identical.

[0225] Three or more fourteenth antistatic units 294a, 294b, and 294c can be arranged on the circumference of a virtual circle surrounding the light-emitting diode 210 and the power supply unit 240, and spaced apart from each other to the greatest extent possible on the circumference of the virtual circle. For example, three or more fourteenth antistatic units 294a, 294b, and 294c can be arranged at substantially equal intervals along the circumference of the virtual circle surrounding the light-emitting diode 210 and the power supply unit 240. Figure 20 The six antistatic parts shown can be arranged to form an angle of about 60 degrees with each other along the circumference of the virtual circle surrounding the light-emitting diode 210 and the power supply part 240.

[0226] Because three or more fourteenth antistatic parts 294a, 294b, and 294c are disposed inside the optical dome 220, the antistatic member 260 can capture the charge generated by electrostatic discharge in substantially all directions, which penetrates into the interior of the optical dome 220. Therefore, a portion of the electrostatic discharge charge captured by the antistatic member 260 can be further increased, and the electrostatic discharge tolerance of the light source 111 can be further improved.

[0227] like Figure 21 As shown, the antistatic component 260 may include three or more fifteenth antistatic portions 295a, 295b, and 295c, a portion of which overlaps with the optical dome 220. The structure and shape of the three or more fifteenth antistatic portions 295a, 295b, and 295c may be the same as the structure and shape of the first antistatic portion 281 and the second antistatic portion 282 described above.

[0228] Three or more fifteenth antistatic parts 295a, 295b, and 295c may be arranged on the circumference of a virtual circle corresponding to the outermost edge of the optical dome 220, and spaced apart from each other to the greatest extent possible on the circumference of the virtual circle. For example, three or more fifteenth antistatic parts 295a, 295b, and 295c may be arranged at substantially equal intervals along the outermost edge of the optical dome 220.

[0229] Because three or more fifteenth antistatic portions 295a, 295b, and 295c, each partially overlapping the optical dome 220, are provided, the antistatic member 260 can capture charges generated by electrostatic discharge in substantially all directions, which penetrate into the interior of the optical dome 220. Therefore, a portion of the electrostatic discharge charge captured by the antistatic member 260 can be further increased, and the electrostatic discharge tolerance of the light source 111 can be further improved.

[0230] As described above, the number, shape and arrangement of the antistatic part 280 used to protect the light-emitting diode 210 from electrostatic discharge can vary as needed.

[0231] Furthermore, the structure (side section) of the antistatic part 280 is not limited to... Figure 9 The structure shown is provided, and the antistatic part 280 can be formed into various structures.

[0232] Figure 22 A light source including an antistatic portion for protecting the feed line is shown according to an embodiment of the present disclosure.

[0233] like Figure 22 As shown, the antistatic component 260 may include a first antistatic portion 281 and a second antistatic portion 282 arranged around the optical dome 220, and a sixteenth antistatic portion 296a and 296b and a seventeenth antistatic portion 297a and 297b arranged around the feed line 230. The structure (side section) and shape of the sixteenth antistatic portion 296a, 296b and the seventeenth antistatic portion 297a and 297b may be similar to... Figure 6 and Figure 10 The first antistatic part 281 and the second antistatic part 282 shown have the same structure (side cross-section) and shape.

[0234] The first antistatic part 281 and the second antistatic part 282 can capture the charge moving outward from the outer surface of the optical dome 220.

[0235] The protective layer 253 can typically be configured with an insulator and protect feed circuits such as feed line 230 from electrostatic discharge (ESD). However, because the protective layer 253 has a thinner thickness than the optical dome 220, it can have a lower voltage level than the optical dome 220, thus protecting feed circuits such as feed line 230 from ESD. Therefore, through ESD generated around feed line 230, charge can penetrate into feed line 230, and the charge can damage the light-emitting diode 210 through feed line 230.

[0236] To prevent or suppress charge penetration through the feed line 230, sixteenth antistatic parts 296a and 296b and seventeenth antistatic parts 297a and 297b can be provided around the feed line 230. For example... Figure 22 As shown, the sixteenth antistatic parts 296a and 296b can be arranged along the feed line 230 on both sides of the feed line 230. The seventeenth antistatic parts 297a and 297b can also be arranged along the feed line 230 on both sides of the feed line 230.

[0237] The sixteenth antistatic parts 296a, 296b and the seventeenth antistatic parts 297a and 297b can prevent or suppress damage to the light-emitting diode 210 caused by electrostatic discharge generated around the feed line 230.

[0238] Figure 23 It shows Figure 6 The light source shown along Figure 6 Another example of a side section taken in the B-B' direction.

[0239] like Figure 23 As shown, the protective layer 253 can cover the antistatic wire 270 to prevent it from being exposed to the outside. Here, a window for forming an antistatic section 280 for capturing current generated by electrostatic discharge can be formed in the protective layer 253. In this way, the antistatic wire 270 can be exposed to the outside through the antistatic section 280.

[0240] Conductive adhesive 280a can be applied to the antistatic part 280. Conductive adhesive 280a can be applied to the window of the protective layer 253.

[0241] The conductive adhesive material 280a may include a conductive solder. This solder is known to have high light reflectivity.

[0242] Because a conductive adhesive material 280a with high light reflectivity is applied to the antistatic part 280, optical interference caused by the antistatic wires 270 exposed through the antistatic part 280 can be reduced. In other words, distortion of the spectrum of light emitted from the light source 111 due to the color of the antistatic part 280 formed of copper can be prevented or suppressed.

[0243] Therefore, the area of ​​the antistatic part 280 can be increased without causing cloudiness (unevenness).

[0244] Figure 24 It shows Figure 6 The light source shown along Figure 6 Another example of a side section taken in the B-B' direction.

[0245] like Figure 24 As shown, the protective layer 253 can cover the antistatic wire 270 to prevent it from being exposed to the outside. Here, a through-hole 270a can be formed in the protective layer 253 to form an antistatic portion 280 for capturing current generated by electrostatic discharge. The antistatic portion 280 can be formed on the protective layer 253, and the antistatic portion 280 can be electrically connected to the antistatic wire 270 through the through-hole 280a of the protective layer 253.

[0246] Thus, since the antistatic part 280 is formed on the protective layer 253, the performance of the antistatic component 260 in capturing charges generated by electrostatic discharge can be improved. Therefore, the electrostatic discharge tolerance of the light source 111 can be further improved.

[0247] According to embodiments of this disclosure, a light source device may include: a reflective sheet with a hole formed therein; and a light source module exposed through the hole. The light source module may include: a substrate disposed parallel to the reflective sheet, wherein a first surface of the substrate faces the reflective sheet; a light-emitting diode (LED) disposed in a region defined by the hole on the first surface of the substrate; a power supply portion disposed on the first surface of the substrate and in contact with the LED; an insulating dome disposed in the region defined by the hole on the first surface of the substrate and covering the LED; and at least one antistatic portion disposed in the region defined by the hole on the first surface of the substrate without contacting the LED.

[0248] At least one antistatic component can capture the charge generated by electrostatic discharge. Therefore, damage to the light-emitting diode by electrostatic discharge can be prevented or suppressed.

[0249] At least one antistatic part may be disposed outside the area defined by the outline of the insulating dome. Therefore, light distortion due to optical interference caused by the inherent color of the antistatic part can be prevented or suppressed, and moiré or dark areas of the display device can be prevented or suppressed.

[0250] At least one antistatic part may include multiple antistatic parts arranged on the circumference of a virtual circle surrounding the light-emitting diode and the feeding part, and the multiple antistatic parts may be arranged at substantially equal intervals on the circumference of the virtual circle. Therefore, the multiple antistatic parts can capture charges generated by electrostatic discharge in various directions and can improve the electrostatic tolerance of the light source module.

[0251] At least one antistatic part can be an arc shape surrounding a virtual circle of the light-emitting diode and the feed part. Therefore, multiple antistatic parts can capture charges generated by electrostatic discharge in various directions and improve the electrostatic tolerance of the light source module.

[0252] At least one portion of the antistatic part may overlap with the insulating dome. Therefore, at least one antistatic part can capture charges moving along the boundary between the insulating dome and the substrate.

[0253] At least one antistatic part may include an external antistatic part located outside the region defined by the outline of the insulating dome, and an internal antistatic part located inside the region defined by the outline of the insulating dome. Thus, at least one antistatic part can capture charges moving along the boundary between the insulating dome and the substrate, as well as charges flowing outside the insulating dome.

[0254] The size of at least one antistatic part may be 0.16% or greater of the size of the area defined by the outline of the insulating dome. At least one antistatic part can capture a large amount of charge generated by electrostatic discharge and can improve the electrostatic tolerance of the light source module.

[0255] The shortest distance from at least one antistatic part to the outline of the insulating dome can be less than or equal to the radius of the area defined by the outline of the insulating dome. At least one antistatic part can capture a larger amount of charge generated by electrostatic discharge and can improve the electrostatic tolerance of the light source module.

[0256] The substrate may include conductive antistatic wires and a protective layer covering the surface of the antistatic wires, and the antistatic portion may include antistatic wires exposed to the outside through windows formed in the protective layer. The antistatic wires may be electrically connected to the ground of the light source device or capacitively coupled to ground. Therefore, at least one antistatic portion can capture a larger amount of charge generated by electrostatic discharge and can improve the electrostatic tolerance of the light source module.

[0257] The antistatic part may also include solder, which is applied to the antistatic wire exposed to the outside through a window formed in the protective layer. Therefore, light distortion due to optical interference caused by the inherent color of the antistatic part can be prevented or suppressed, and clouding or dark areas of the display device can be prevented or suppressed.

[0258] Light-emitting diodes (LEDs) can directly contact the feed section without wires or ball grids, and they can also directly contact the feed section without a Zener diode connected in parallel with the LED. Therefore, the light source can be miniaturized, the uniformity of surface light emitted from the light source can be improved, and the contrast of the display device can be enhanced through dimming.

[0259] Furthermore, the disclosed embodiments can be implemented in the form of a recording medium storing instructions executable by a computer. The instructions can be stored as program code, and when executed by a processor, the instructions can create a program to perform the operations of the disclosed embodiments. The recording medium can be implemented as a computer-readable recording medium.

[0260] Computer-readable recording media can include all kinds of recording media that can be interpreted by a computer. For example, computer-readable recording media can be read-only memory (ROM), random access memory (RAM), magnetic tape, magnetic disk, flash memory, optical data storage, etc.

[0261] Machine-readable storage media may be provided in the form of non-transitory storage media, where the term "non-transitory" simply means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but the term does not distinguish between cases where data is stored semi-permanently in the storage medium and cases where data is temporarily stored in the storage medium. For example, "non-transitory storage media" may include buffers for temporarily storing data.

[0262] According to embodiments of this disclosure, methods according to various embodiments of this disclosure can be included and provided in a computer program product. The computer program product can be traded as a product between a seller and a buyer. The computer program product can be distributed in the form of a machine-readable storage medium (e.g., an optical disc read-only memory (CD-ROM)), or distributed online (e.g., downloaded or uploaded) through an app store (e.g., the Play Store™), or directly between two user devices (e.g., smartphones). When distributed online, at least a portion of the computer program product (e.g., a downloadable application) can be temporarily generated or at least temporarily stored in a machine-readable storage medium, such as the memory of a manufacturer's server, an app store's server, or a relay server.

[0263] The disclosed embodiments have now been described with reference to the accompanying drawings. It is obvious that those skilled in the art can make various modifications without altering the technical spirit and essential characteristics of this disclosure. Therefore, it should be understood that the above embodiments are for illustrative purposes only and not for limiting purposes in all respects.

Claims

1. A display device, comprising: LCD panel; A substrate is disposed below the liquid crystal panel. The substrate includes a conductive layer and an antistatic wire configured to guide charges generated by electrostatic discharge to flow to ground. At least one power supply unit is disposed on the substrate; At least one antistatic part is disposed on the substrate; as well as A light source module is disposed on a first side of the substrate. The light source module includes a light-emitting diode and an insulating dome covering the light-emitting diode. The protective layer is disposed on the outer surface of the substrate to cover the conductive layer. Wherein, at least one power supply portion is disposed on the first side of the substrate and contacts the light-emitting diode of the light source module, and The at least one antistatic part includes at least one window formed in the protective layer, and the antistatic wire is exposed to the outside through the at least one window.

2. The display device according to claim 1, wherein, The at least one antistatic part does not contact the light-emitting diode of the light source module.

3. The display device according to claim 1, wherein, The at least one antistatic part is disposed outside the area defined by the planar outline of the insulating dome.

4. The display device according to claim 1, wherein, The at least one antistatic part includes a plurality of antistatic parts arranged on the circumference of a virtual circle surrounding the light-emitting diode and the at least one power supply part.

5. The display device according to claim 4, wherein, The plurality of antistatic components are arranged at substantially equal intervals on the circumference of the virtual circle.

6. The display device according to claim 1, wherein, The at least one antistatic part is an arc shape surrounding the light-emitting diode and the at least one feed part.

7. The display device according to claim 1, wherein, A portion of the at least one antistatic part overlaps with the insulating dome.

8. The display device according to claim 1, wherein, The at least one antistatic part includes an external antistatic part located outside the region defined by the planar outline of the insulating dome, and an internal antistatic part located inside the region defined by the planar outline of the insulating dome.

9. The display device according to claim 1, wherein, The size of the at least one antistatic part is 0.16% or greater of the area defined by the planar outline of the insulating dome.

10. The display device according to claim 1, wherein, The shortest distance from the at least one antistatic part to the planar profile of the insulating dome is less than or equal to the radius of the area defined by the planar profile of the insulating dome.

11. The display device according to claim 1, wherein, The antistatic wire is electrically connected to the ground of the display device or coupled to the ground via a capacitor.

12. The display device according to claim 1, wherein, The at least one antistatic part further includes solder, which is applied to the antistatic line exposed to the outside through the at least one window formed in the protective layer.

13. The display device according to claim 1, wherein, The light-emitting diode is in direct contact with the at least one power supply unit without the need for wires or ball grids.

14. The display device according to claim 1, wherein, The light-emitting diode is in direct contact with the at least one power supply unit in the absence of a Zener diode.

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