Display device and light emitting device thereof

Abstract

A display device includes a liquid crystal panel and a light emitting device. The light emitting device includes a board, a plurality of light adjusting blocks each including at least one light source provided on a first surface of the board, and a plurality of driving devices provided on the first surface of the board, each of the plurality of driving devices applying a driving current to the at least one light source included in each of the plurality of light adjusting blocks, wherein the plurality of driving devices can be respectively arranged at different relative positions within a plurality of light adjusting areas defined by the plurality of light adjusting blocks.

Description

TECHNICAL FIELD

[0001] The disclosure relates to a display apparatus and a light emitting apparatus thereof, and more particularly, to a thin display apparatus and a light source module thereof. BACKGROUND

[0002] Generally, a display apparatus is one of output apparatuses for displaying obtained or stored electric information to a user by converting the electric information into visual information, and is used in various fields such as a home or a work place.

[0003] There are many different display apparatuses such as a monitor apparatus connected to a personal computer (PC) or a server computer, a portable computer system, a global positioning system (GPS) terminal, a general television, an Internet protocol television (IPTV), a portable terminal (e.g., a smart phone, a tablet PC, a personal digital assistant (PDA), and a cellular phone), any other display device for reproducing an image such as an advertisement or a movie, or other various audio / video systems.

[0004] The display apparatus includes a light source module that converts electric information into visual information, and the light source module includes a plurality of light sources that individually emit light. Each of the plurality of light sources includes, for example, a light emitting diode (LED) or an organic LED (OLED). For example, the LED or the OLED can be mounted on a circuit board or a board.

[0005] Recently, the thickness of the display apparatus becomes thinner and thinner. In order to implement such a thin display apparatus, the light source module also becomes thinner and thinner.

[0006] As the thickness of the light source module becomes thinner, the light source module has a user-recognizable optical defect (e.g., mura). For example, the optical defect can be caused by an arrangement of LEDs or an arrangement of driving circuits in the thin light source module. SUMMARY

[0007] TECHNICAL PROBLEM

[0008] An aspect of the disclosure provides a display apparatus and a light emitting apparatus thereof capable of preventing or inhibiting an optical defect (e.g., mura).

[0009] SOLUTION TO PROBLEM

[0010] A display device according to an aspect of the present disclosure includes a liquid crystal panel; and a light emitting device. The light emitting device includes a board; a plurality of light modulation blocks each including at least one light source provided on a first surface of the board; and a plurality of driving devices provided on the first surface of the board, each of the plurality of driving devices applying a driving current to the at least one light source included in each of the plurality of light modulation blocks, wherein the plurality of driving devices can be respectively arranged at different relative positions within a plurality of light modulation areas defined by the plurality of light modulation blocks.

[0011] A light emitting device according to an aspect of the present disclosure includes a board; a plurality of light modulation blocks each including at least one light source provided on a first surface of the board; and a plurality of driving devices provided on the first surface of the board, each of the plurality of driving devices applying a driving current to the at least one light source included in each of the plurality of light modulation blocks, wherein the plurality of driving devices can be respectively arranged at different relative positions within a plurality of light modulation areas defined by the plurality of light modulation blocks.

[0012] A display device according to an aspect of the present disclosure includes a liquid crystal panel; and a light emitting device. The light emitting device includes a board; a plurality of light modulation blocks each including at least one light source provided on a first surface of the board; and a plurality of driving devices provided on the first surface of the board, each of the plurality of driving devices applying a driving current to the at least one light source included in each of the plurality of light modulation blocks, wherein one of the plurality of driving devices can be arranged outside a virtual line defined by two driving devices closest to the one driving device.

[0013] Advantages of the present disclosure

[0014] According to an aspect of the present disclosure, a display device capable of preventing or inhibiting optical defects (e.g., mura) and a light emitting device thereof can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is an external view of a display device according to an embodiment.

[0016] Figure 2 is an exploded view of a display device according to an embodiment.

[0017] Figure 3 shows a liquid crystal panel of a display device according to an embodiment.

[0018] Figure 4 is an exploded view of a light emitting device of a display device according to an embodiment.

[0019] Figure 5is a perspective view of a light source included in a light emitting device according to an embodiment.

[0020] Figure 6 shows an example of a light emitting diode (LED) included in a light emitting device according to an embodiment.

[0021] Figure 7 shows a configuration of a display device according to an embodiment.

[0022] Figure 8 shows a dimming block of a light emitting device included in a display device according to an embodiment.

[0023] Figure 9 shows an example in which a display device converts image data into dimming data according to an embodiment.

[0024] Figure 10 shows an example of a dimming driver and a light emitting device included in a display device according to an embodiment.

[0025] Figure 11 shows an example of a driving device included in a display device according to an embodiment.

[0026] Figure 12 shows an arrangement of a dimming driver, a driving device, and a light source included in a display device according to an embodiment.

[0027] Figure 13 shows an example of an arrangement of a driving device included in a display device according to an embodiment.

[0028] Figure 14 shows an example of an arrangement of a driving device included in a display device according to an embodiment.

[0029] Figure 15 shows an example of an arrangement of a driving device included in a display device according to an embodiment.

[0030] Figure 16 shows an example of a dimming driver and a light emitting device included in a display device according to an embodiment.

[0031] Figure 17 shows an example of a driving device included in a display device according to an embodiment.

[0032] Figure 18 shows an example of an arrangement of a driving device included in a display device according to an embodiment.

[0033] Figure 19 shows an example of an arrangement of a driving device included in a display device according to an embodiment.

[0034] Figure 20 An example of an arrangement of driving devices included in a display device according to an embodiment is shown.

[0035] Figure 21 An example of an arrangement of driving devices included in a display device according to an embodiment is shown. DETAILED DESCRIPTION

[0036] Throughout the specification, the same numbers refer to the same elements. Not all elements of the embodiments of the present disclosure will be described, and the description of elements or elements repeated with each other in the art will be omitted throughout the specification. The terms used throughout the specification, such as “~ part,” “~ module,” “~ member,” “~ block,” etc., can be implemented as software and / or hardware, and multiple “~ parts,” “~ modules,” “~ members,” or “~ blocks” can be implemented in a single element, or a single “~ part,” “~ module,” “~ member,” or “~ block” can include multiple elements.

[0037] It will also be understood that the terms “connected” or “coupled” or their derivatives refer both to direct and indirect connections, and that indirect connections include connections through wireless communication networks.

[0038] The terms “comprise” or “comprising,” or “include” or “including” or “contain” or “containing” are inclusive or open-ended and do not exclude additional, unrecited elements or method steps, unless otherwise specified.

[0039] Throughout the specification, when it is said that a member is “on” another member, it means not only that the member is positioned adjacent to the other member, but also that a third member is present between the two members.

[0040] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another region, layer or section.

[0041] It will be understood that the singular forms “a,” “an,” and “the” include plural referents, unless the context clearly dictates otherwise.

[0042] Reference numerals in the drawings are merely for the convenience of explanation and are not intended to limit the order of steps. Therefore, unless the context clearly specifies otherwise, the described order can be implemented in other ways.

[0043] The principles and embodiments of the present disclosure will now be described with reference to the accompanying drawings.

[0044] Figure 1is an external view of a display apparatus according to an embodiment.

[0045] The display apparatus 10 is a device for processing an image signal received from the outside and visually presenting the processed image. In the following description, it is assumed that the display apparatus 10 is a television (TV), but embodiments of the present disclosure are not limited thereto. For example, the display apparatus 10 can be implemented in various forms such as a monitor, a portable multimedia device, a portable communication device, and any device capable of visually presenting an image, but is not limited thereto.

[0046] The display apparatus 10 can be a large-sized display (LFD) installed outdoors, such as on a roof of a building or at a bus stop. However, the display apparatus 10 is not installed only outdoors, but can be installed anywhere, even indoors where there is a large amount of traffic, for example, at a subway station, a shopping mall, a theater, an office, a store, etc.

[0047] The display apparatus 10 can receive content including video and audio signals from various content sources and output video and audio corresponding to the video and audio signals. For example, the display apparatus 10 can receive content data through a broadcast receiving antenna or a cable, receive content data from a content reproduction device, or receive content data from a content providing server of a content provider.

[0048] As shown in FIG. 1, Figure 1 The display apparatus 10 includes a main body 11 and a screen 12 for displaying an image I.

[0049] The main body 11 forms the outside of the display apparatus 10, and components for the display apparatus 10 to display the image I or perform many different functions can be included in the main body 11. Although Figure 1 The main body 11 of FIG. 1 is shaped like a flat plate, but is not limited thereto. For example, the main body 11 can have the form of a curved plate.

[0050] The screen 12 can be formed on a front portion of the main body 11 for displaying the image I. For example, the screen 12 can display a still image or a moving image. For example, the screen 12 can display a two-dimensional (2D) planar image or a three-dimensional (3D) stereoscopic image using the parallax of a user's two eyes.

[0051] The screen 12 may, for example, include a self-emissive panel (e.g., a light-emitting diode (LED) panel or an organic LED (OLED) panel) capable of directly emitting light, or a non-emissive panel (e.g., a liquid crystal panel) capable of passing or blocking light emitted from, for example, a light-emitting device (e.g., a backlight unit).

[0052] The plurality of pixels P is formed on the screen 12, and an image I displayed on the screen 12 can be formed by light emitted by each of the plurality of pixels P. For example, light emitted by each of the plurality of pixels P can be combined like a mosaic into the image I on the screen 12.

[0053] Each of the plurality of pixels P can emit light of various colors and brightnesses. Each of the plurality of pixels P can include sub-pixels P R , P G , and P B to emit light of different colors.

[0054] The sub-pixels P R , P G , and P B may include a red sub-pixel P R emitting red light, a green sub-pixel P G emitting green light, and a blue sub-pixel P B emitting blue light. For example, red light can have a wavelength of about 620 nanometers (nm, one billionth of a meter) to about 750 nm; green light can have a wavelength of about 495 nm to about 570 nm; and blue light can have a wavelength of about 430 nm to about 495 nm.

[0055] Each of the plurality of pixels P can emit light of various brightnesses and colors by a combination of red light of the red sub-pixel P R , green light of the green sub-pixel P G , and blue light of the blue sub-pixel P B .

[0056] Figure 2 is an exploded view of a display apparatus according to an embodiment. Figure 3 A liquid crystal panel of a display apparatus according to an embodiment is illustrated.

[0057] As illustrated in Figure 2 , the main body 11 can include many different kinds of components to create an image I on the screen S.

[0058] For example, the light emitting apparatus 100 as a surface light source, the liquid crystal panel 20 for blocking or passing light emitted from the light emitting apparatus 100, the control assembly 50 for controlling operations of the light emitting apparatus 100 and the liquid crystal panel 20, and the power assembly 60 for supplying power to the light emitting apparatus 100 and the liquid crystal panel 20 are assembled in the main body 11. Further, the main body 11 includes a bezel 13, a frame middle mold 14, a chassis 15, and a back cover 16 to support and fix the liquid crystal panel 20, the light emitting apparatus 100, the control assembly 50, and the power assembly 60. An opening 15a is formed at the chassis 15 to electrically connect the light emitting apparatus 100 to the control assembly 50 and the power assembly 60.

[0059] The light emitting device 100 can include a point light source for emitting monochromatic light or white light, and refract, reflect, and diffuse the light emitted from the point light source to convert the light into uniform surface light. In this way, the light emitting device 100 can emit uniform surface light in a forward direction by refracting, reflecting, and diffusing the light emitted from the point light source.

[0060] The light emitting device 100 will now be described in more detail.

[0061] The liquid crystal panel 20 is disposed in front of the light emitting device 100 for blocking or passing the light emitted from the light emitting device 100 to produce an image I.

[0062] A front surface of the liquid crystal panel 20 can form a screen S of the aforementioned display device 10, and the liquid crystal panel 20 can include a plurality of pixels P. The plurality of pixels P included in the liquid crystal panel 20 can individually block or pass the light from the light emitting device 100, and the light that has passed the plurality of pixels P forms an image I to be displayed on the screen S.

[0063] For example, as Figure 3 shown, the liquid crystal panel 20 can include a first polarizing film 21, a first transparent plate 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 plate 28, and a second polarizing film 29.

[0064] The first transparent plate 22 and the second transparent plate 28 can firmly support the pixel electrode 23, the TFT 24, the liquid crystal layer 25, the common electrode 26, and the color filter 27. The first transparent plate 22 and the second transparent plate 28 can be formed of tempered glass or transparent resin.

[0065] The first polarizing film 21 and the second polarizing film 29 are disposed outside the first transparent plate 22 and the second transparent plate 28. The first polarizing film 21 and the second polarizing film 29 can each pass a specific light while blocking other light. For example, the first polarizing film 21 can pass polarized light in a first direction while blocking different polarized light. Also, the second polarizing film 29 can pass polarized light in a second direction while blocking different polarized light. The first direction and the second direction can be perpendicular to each other. As a result, the polarized light that has passed the first polarizing film 21 can not pass the second polarizing film 29.

[0066] A color filter 27 can be disposed on the inner side of the second transparent plate 28. The color filter 27 can include, for example, a red color filter 27R for passing red light, a green color filter 27G for passing green light, and a blue color filter 27B for passing blue light, and the red color filter 27R, the green color filter 27G, and the blue color filter 27B can be arranged side by side. The area in which the color filter 27 is formed corresponds to the pixel P as described above. The area in which the red color filter 27R is formed corresponds to the red sub-pixel P R ; the area in which the green color filter 27G is formed corresponds to the green sub-pixel P G ; and the area in which the blue color filter 27B is formed corresponds to the blue sub-pixel P B .

[0067] A pixel electrode 23 can be disposed on the inner side of the first transparent plate 22, and a common electrode 26 can be disposed on the inner side of the second transparent plate 28. The pixel electrode 23 and the common electrode 26 are formed of a conductive metal material and can generate an electric field to change the arrangement of liquid crystal molecules 115a forming the liquid crystal layer 25, which will be described below.

[0068] A thin film transistor (TFT) 24 is disposed on the inner side of the second transparent plate 22. The TFT 24 can pass or block a current flowing in the pixel electrode 23. For example, depending on whether the TFT 24 is turned on (closed) or turned off (open), an electric field can be formed between the pixel electrode 23 and the common electrode 26 or removed from between the pixel electrode 23 and the common electrode 26.

[0069] A liquid crystal layer 25 is formed between the pixel electrode 23 and the common electrode 26 and is filled with liquid crystal molecules 25a. Liquid crystals are in an intermediate state between a solid (crystal) and a liquid. Liquid crystals exhibit optical properties according to changes in an electric field. For example, according to changes in an electric field, liquid crystals can have different arrangement directions of molecules forming the liquid crystals. Accordingly, the optical properties of the liquid crystal layer 25 can change according to whether an electric field passes through the liquid crystal layer 25.

[0070] On one side of the liquid crystal panel 20, a cable 20a for transmitting image data to the liquid crystal panel 20 and a display driver integrated circuit (DDI) 30 (hereinafter, referred to as a "panel driver") for processing digital image data to output an analog image signal are provided.

[0071] The cable 20a can be electrically connected between the control assembly 50 / power assembly 60 and the panel driver 30, and further electrically connected between the panel driver 30 and the liquid crystal panel 20. The cable 20a can include, for example, a flexible flat cable or a film cable that is bendable.

[0072] The panel driver 30 can receive image data and power from the control assembly 50 / power assembly 60 through the cable 20a and transmit the image data and driving current to the liquid crystal panel 20 through the cable 20a.

[0073] Further, the cable 110b and the panel driver 30 can be integrally implemented as a film cable, a chip on film (COF), a tape carrier package (TCP), or the like. In other words, the panel driver 30 can be disposed on the cable 20b. However, it is not limited thereto, and the panel driver 30 can be disposed on the liquid crystal panel 20.

[0074] The control assembly 50 can include a control circuit for controlling the operation of the liquid crystal panel 20 and the light emitting device 100. The control circuit can process image data received from an external content source, transmit the image data to the liquid crystal panel 20, and transmit dimming data to the light emitting device 100.

[0075] The power assembly 60 can supply power to the liquid crystal panel 20 and the light emitting device 100, thereby causing the light emitting device 100 to output surface light and causing the liquid crystal panel 20 to block or pass light from the light emitting device 100.

[0076] The control assembly 50 and the power assembly 60 can be implemented with a printed circuit board (PCB) and various circuits mounted on the PCB. For example, the power circuit can include a power circuit board and a capacitor, a coil, a resistor, a processor, etc. mounted on the power circuit board. Further, the control circuit can include a control circuit board on which a memory and a processor are mounted.

[0077] Figure 4 is an exploded view of a light emitting device of a display apparatus according to an embodiment. Figure 5 is a perspective view of a light source included in a light emitting device according to an embodiment. Figure 6 shows an example of a light emitting diode (LED) included in a light emitting device according to an embodiment.

[0078] As Figure 4 shown, the light emitting device 100 includes a light source module 110 for generating light, a reflection sheet 120 for reflecting light, a diffusion plate 130 for uniformly diffusing light, and an optical sheet 140 for enhancing the brightness of output light.

[0079] The light source module 110 can include a plurality of light sources 111 for emitting light and a plate 112 for supporting / securing the plurality of light sources 111.

[0080] The plurality of light sources 111 can be arranged in a predetermined pattern to emit light having uniform brightness. The plurality of light sources 111 can be arranged such that one light source is equidistant from its adjacent light sources.

[0081] For example, asFigure 4 As shown, the plurality of light sources 111 can be arranged in rows and columns. Thus, the plurality of light sources can be arranged such that four adjacent light sources almost form a rectangle. Also, one light source is positioned adjacent to four other light sources, and the distance between the light source and the four adjacent light sources is almost the same.

[0082] In another example, the plurality of light sources can be arranged in multiple rows, and the light sources belonging to one row can be located in the middle of two light sources belonging to two adjacent rows. Thus, the plurality of light sources can be arranged such that three adjacent light sources almost form a triangle. In this case, one light source is positioned adjacent to six other light sources, and the distance between the light source and the six adjacent light sources is almost the same.

[0083] However, the arrangement of the plurality of light sources 111 is not limited thereto, and the plurality of light sources 111 can be arranged in various ways to emit light with uniform brightness.

[0084] The light source 111 can employ a device capable of emitting monochromatic light (light having a specific wavelength, such as blue light) or white light (mixed light of red, green, and blue light) in various directions when powered.

[0085] Each of the plurality of light sources 111 includes an LED 190 and an optical dome 180.

[0086] The thinner the display device 10, the thinner the light emitting device 100. In order to make the light emitting device 100 thinner, each of the plurality of light sources 111 becomes thinner and the structure becomes simpler.

[0087] The LED 190 can be directly attached to the board 112 in a chip on board (COB) method. In other words, the light source 111 can include the LED 190 having an LED chip or LED die directly attached to the board 112 without an additional package.

[0088] The LED 190 can be manufactured in a flip chip type. The LED 190 of the flip chip type can attach the LED as a semiconductor device to the board 112 without using an intermediate medium such as a metal lead (wire) or a ball grid array (BGA), but can fuse the electrode pattern of the semiconductor device as it is to the board 112. This can make it possible for the light source 111 including the LED 190 of the flip chip type to become smaller by omitting the metal lead (wire) or the ball grid array.

[0089] For example, the LED 190 can be a DBR LED including a distributed Bragg reflector (DBR) as shown in FIG. 2B. Figure 6

[0090] ​The LED 190 includes a transparent plate 195, an n-type semiconductor layer (e.g., n-type gallium nitride (n-type GaN)) 193, and a p-type semiconductor layer (e.g., p-type GaN) 192. A multiple quantum well (MQW) layer 194 and an electron blocking layer (EBL) 197 are formed between the n-type semiconductor layer 193 and the p-type semiconductor layer 192. When a current is applied to the LED 190, electrons and holes can recombine in the MQW layer 194, thereby emitting light.

[0091] The first electrode 191a of the LED 190 is in electrical contact with the p-type semiconductor layer 192, and the second electrode 191b is in electrical contact with the n-type semiconductor layer 193. The first electrode 191a and the second electrode 191b can not only be used as electrodes, but also as reflectors that reflect light.

[0092] The DBR layer 196 is disposed outside the transparent plate 195. The DBR layer 196 can be formed by stacking materials having different refractive indices, and the DBR layer 196 can reflect incident light. Since the DBR layer 196 is disposed outside (the upper side in the drawing) the transparent plate 195, light that enters the DBR layer 196 vertically can be reflected by the DBR layer 196. Thus, the intensity of light emitted in a direction D1 perpendicular to the DBR layer 196 (in the upward direction of the LED in the drawing) is lower than the intensity of light emitted in a direction D2 inclined from the DBR layer 196 (e.g., a direction inclined by about 60 degrees from the upward direction in the drawing). In other words, the LED 190 can emit stronger light in a lateral direction than in a vertical direction.

[0093] The optical dome 180 can cover the LED 190. The optical dome 180 can prevent or inhibit damage to the LED 190 due to external mechanical and / or chemical action.

[0094] The optical dome 180 can be shaped, for example, as a dome obtained by cutting a sphere without including the center, or as a hemisphere obtained by cutting a sphere with including the center. A vertical cross-section of the optical dome 180 can have, for example, an arcuate form or a semicircular form.

[0095] The optical dome 180 can be formed of silicon or epoxy resin. For example, molten silicon or epoxy resin is discharged onto the LED 190 through, for example, a nozzle, and then hardened to form the optical dome 180.

[0096] Accordingly, the shape of the optical dome 180 can be variously changed depending on the viscosity of the fluid silicon or the epoxy resin. For example, when the optical dome 180 is manufactured of silicon having a thixotropic index of about 2.7 to 3.3 (preferably, 3.0), the optical dome 180 can be formed to have a dome ratio of about 0.25 to 0.31 (preferably, 0.28), which represents a ratio of a dome height to a diameter of a bottom side of the dome (dome height / bottom side diameter). For example, the optical dome 180 manufactured of silicon having a thixotropic index of about 2.7 to 3.3 (preferably, 3.0) can have a bottom side diameter of about 2.5 mm and a height of about 0.7 mm.

[0097] The optical dome 180 can be optically transparent or translucent. Light emitted from the LED 190 can pass through the optical dome 180 to the outside.

[0098] In this case, the dome-shaped optical dome 180 can refract light like a lens. For example, light emitted from the LED 190 can be refracted and diffused by the optical dome 180.

[0099] As such, the optical dome 180 can not only protect the LED 190 from external mechanical and / or chemical or electrical effects, but also diffuse light emitted from the LED 190.

[0100] The plate 112 can fix the plurality of light sources 111 to prevent the light sources 111 from moving. Also, the plate 112 can supply power to each of the light sources 111 so that the light sources 111 can emit light.

[0101] The plate 112 can fix the plurality of light sources 111 and can be formed of synthetic resin in which a conductive power line is formed, tempered glass, or a printed circuit board (PCB) to supply power to the light sources 111.

[0102] The reflective sheet 120 can reflect light emitted from the plurality of light sources 111 to a forward direction or a direction close to the forward direction.

[0103] A plurality of through-holes 120a are formed in the reflective sheet 120 at positions corresponding to the plurality of light sources 111 of the light source module 110. Also, the light sources 111 of the light source module 110 can pass through the through-holes 120a and protrude forward from the reflective sheet 120. Accordingly, the plurality of light sources 111 can emit light from the front of the reflective sheet 120. The reflective sheet 120 can reflect light emitted from the plurality of light sources 111 toward the diffusion plate 130.

[0104] The diffusion plate 130 can be disposed in front of the light source module 110 and the reflective sheet 120 to uniformly diffuse light emitted from the light sources 111 of the light source module 110.

[0105] As described above, the plurality of light sources 111 are equidistantly disposed on the rear surface of the light emitting device 100. This can cause different brightness depending on the positions of the plurality of light sources 111.

[0106] To eliminate the brightness difference due to the plurality of light sources 111, the diffusion plate 130 can diffuse the light emitted from the plurality of light sources 111 within the diffusion plate 130. In other words, the diffusion plate 130 can uniformly emit the non-uniform light from the plurality of light sources 111 forward.

[0107] The optical sheet 140 can include various sheets to improve brightness and uniformity of brightness. For example, the optical sheet 140 can include a diffusion sheet 141, a first prism sheet 142, a second prism sheet 143, a reflective polarizing sheet 144, etc. The optical sheet 140 is not limited to the sheets or films as Figure 4 illustrated, and can further include various other sheets or films, such as a protective sheet.

[0108] Figure 7 A configuration of a display device according to an embodiment is illustrated. Figure 8 A light modulation block of a light emitting device included in a display device according to an embodiment is illustrated. Figure 9 An example in which a display device according to an embodiment converts image data into light modulation data is illustrated.

[0109] As Figure 7 illustrated, the display device 10 includes a content receiver 80, an image processor 90, a panel driver 30, a liquid crystal panel 20, a light modulation driver 170, and a light emitting device 100.

[0110] The content receiver 80 can include a reception terminal 81 and a tuner 82 for receiving content including a video signal and / or an audio signal from a content source.

[0111] The reception terminal 81 can receive a video signal and an audio signal from a content source through a cable. For example, the reception terminal 81 can include a component (YPbPr / RGB) terminal, a composite video blanking and synchronization (CVBS) terminal, an audio terminal, a high-definition multimedia interface (HDMI) terminal, a universal serial bus (USB) terminal, etc.

[0112] The tuner 82 can receive a broadcast signal through a broadcast reception antenna or a cable, and extract a broadcast signal on a channel selected by a user from among the received broadcast signals. For example, the tuner 82 can pass a broadcast signal having a frequency corresponding to a channel selected by a user among a plurality of broadcast signals received through a broadcast reception antenna or a cable, and block other broadcast signals having different frequencies.

[0113] As such, the content receiver 80 can receive a video signal and an audio signal from a content source through the reception terminal 81 and / or the tuner 82, and output the video signal and / or the audio signal received through the reception terminal 81 and / or the tuner 82 to the image processor 90.

[0114] The image processor 90 can include a processor 91 for processing image data and a memory 92 for memorizing / storing data.

[0115] The memory 92 can store programs and data for processing a video signal and / or an audio signal, and temporarily store data generated in the process of processing the video signal and / or the audio signal.

[0116] The memory 92 can include a non-volatile memory such as a read only memory (ROM), a flash memory, etc., and a volatile memory such as a static random access memory (SRAM), a dynamic RAM (DRAM), etc.

[0117] The processor 91 can receive a video signal and / or an audio signal from the content receiver 80, decode the video signal into image data, and generate dimming data from the image data. The image data and the dimming data can be output to the panel driver 30 and the dimming driver 170.

[0118] The display apparatus 10 can perform an operation to improve the contrast of an image.

[0119] As described above, the light emitting apparatus 100 can include a plurality of light sources 111, and diffuse light emitted from the plurality of light sources 111 to output surface light. The liquid crystal panel 20 can include a plurality of pixels, and control each of the plurality of pixels to pass light or block light. Light that has passed through the plurality of pixels can form an image.

[0120] In this case, the display apparatus 10 can turn off the light sources of the light emitting apparatus 100 corresponding to a dark portion of an image to further darken the dark portion of the image. Accordingly, the contrast of the image can be enhanced.

[0121] As such, the operation of controlling the light emitting apparatus 100 not to emit light from a portion corresponding to a dark portion of an image, performed by the display apparatus 10, is referred to as "local dimming".

[0122] For local dimming, the plurality of light sources 111 included in the light source module 110 can be classified into a plurality of dimming blocks 200, as Figure 8 shown. In Figure 8 particular, a total of 56 dimming blocks, which are 8 x 7 wide and long, are shown, but the number and arrangement of the dimming blocks are not limited to Figure 8 those shown.

[0123] Each of the plurality of dimming blocks 200 can include at least one light source 111. The light emitting apparatus 100 can apply the same driving current to the light sources belonging to the same dimming block, and the light sources belonging to the same dimming block can emit light having the same brightness.

[0124] In addition, the light emitting apparatus 100 can apply different driving currents to the light sources belonging to different dimming blocks depending on the dimming data, and the light sources belonging to different dimming blocks can emit light having different brightnesses.

[0125] The processor 91 can provide the light emitting apparatus 100 with dimming data for local dimming. The dimming data can include information on brightnesses of each of the plurality of dimming blocks 200. For example, the dimming data can include information on intensities of light output from the light sources included in each of the plurality of dimming blocks 200.

[0126] The processor 91 can obtain the dimming data from image data decoded from a video signal.

[0127] The processor 91 can convert the image data into the dimming data in various methods. For example, as shown in FIG. 2, the processor 91 can divide an image I from the image data into a plurality of image blocks IB. The number of the plurality of image blocks IB is the same as the number of the plurality of dimming blocks 200, and the plurality of image blocks IB can correspond to the plurality of dimming blocks 200, respectively. Figure 9

[0128] The processor 91 can obtain brightness values L of the plurality of dimming blocks 200 from image data of the plurality of image blocks IB. In addition, the processor 91 can generate the dimming data by combining the brightness values L of the plurality of dimming blocks 200.

[0129] For example, the processor 91 can obtain the brightness value L of each of the plurality of dimming blocks 200 based on a maximum value of brightness values of pixels included in each image block IB.

[0130] An image block includes a plurality of pixels, and image data of an image block can include image data (e.g., red data, green data, blue data, etc.) of the plurality of pixels. The processor 91 can calculate a brightness value of each pixel based on the image data of the pixel.

[0131] The processor 91 can determine a maximum value of brightness values of pixels included in an image block as a brightness value of a dimming block corresponding to the image block. For example, the processor 91 can determine a maximum value of brightness values of pixels included in an i-th image block IB(i) as a brightness value L(i) of an i-th dimming block, and determine a maximum value of brightness values of pixels included in a j-th image block IB(j) as a brightness value L(j) of a j-th dimming block.

[0132] ​The processor 91 can generate dimming data by combining the luminance values of the plurality of dimming blocks 200.

[0133] As such, the image processor 90 can decode a video signal obtained through the content receiver 80 into image data, and generate dimming data from the image data. Also, the image processor 90 can transmit the image data and the dimming data to the liquid crystal panel 20 and the light emitting device 100, respectively.

[0134] The liquid crystal panel 20 includes a plurality of pixels capable of passing or blocking light, and the plurality of pixels are arranged in the form of a matrix. In other words, the plurality of pixels can be arranged in a plurality of rows and a plurality of columns.

[0135] The panel driver 30 can receive the image data from the image processor 90, and drive the liquid crystal panel 20 according to the image data. Specifically, the panel driver 30 can convert the image data, which is a digital signal (hereinafter, referred to as digital image data), into an analog image signal, which is an analog voltage signal, and provide the analog image signal to the liquid crystal panel 20. According to the analog image signal, the optical characteristics (e.g., transmittance) of the plurality of pixels included in the liquid crystal panel 20 can change.

[0136] The panel driver 30 can include, for example, a timing controller, a data driver, a scan driver, etc.

[0137] The timing controller can receive the image data from the image processor 90, and output the image data and a driving control signal to the data driver and the scan driver. The driving control signal can include a scan control signal and a data control signal, which can be used to control the operations of the scan driver and the data driver, respectively.

[0138] The scan driver can receive the scan control signal from the timing controller, and input to activate one of the plurality of rows in the liquid crystal panel 20 in response to the scan control signal. In other words, the scan driver converts the pixels included in a row among the plurality of pixels arranged in a plurality of rows and a plurality of columns into a state capable of receiving the analog image signal. In this case, the pixels input to be deactivated cannot receive the analog image signal except for the pixels input to be activated by the scan driver.

[0139] The data driver can receive the image data and the data control signal from the timing controller, and output the image data to the liquid crystal panel 20 according to the data control signal. For example, the data driver can receive the digital image data from the timing controller, and convert the digital image data into the analog image signal. Also, the data driver can provide the analog image signal to the pixels included in the row input to be activated by the scan driver. In this case, the pixels input to be activated by the scan driver receive the analog image signal, which causes the optical characteristics (e.g., transmittance) of the pixels input to be activated to change.

[0140] Thus, the panel driver 30 can drive the liquid crystal panel 20 according to the image data. Accordingly, an image corresponding to the image data can be displayed on the liquid crystal panel 20.

[0141] The light emitting apparatus 100 includes a plurality of light sources 111 that emit light, and the plurality of light sources 111 are arranged in the form of a matrix. In other words, the plurality of light sources 111 can be arranged in a plurality of rows and a plurality of columns. Further, the light emitting apparatus 100 can be divided into a plurality of dimming blocks 200, each of which can include at least one light source.

[0142] The dimming driver 170 can receive dimming data from the image processor 90 and drive the light emitting apparatus 100 according to the dimming data. The dimming data can include information about the brightness of each of the plurality of dimming blocks 200, or information about the brightness of the light sources included in each of the plurality of dimming blocks 200.

[0143] The dimming driver 170 can convert the dimming data, which is a digital signal (hereinafter, referred to as digital dimming data), into an analog dimming signal, which is an analog voltage signal, and provide the analog dimming signal to the light emitting apparatus 100. Depending on the analog dimming signal, the intensity of light emitted by the light sources included in each of the plurality of dimming blocks 200 can change.

[0144] In particular, the dimming driver 170 can not directly provide the analog dimming signal to all of the plurality of dimming blocks 200, but can sequentially provide the analog dimming signal to the plurality of dimming blocks 200 in an active matrix scheme.

[0145] As described above, the plurality of dimming blocks 200 can be arranged in the light emitting apparatus 100 in the form of a matrix. In other words, the plurality of dimming blocks 200 can be arranged in the light emitting apparatus 100 in a plurality of rows and a plurality of columns.

[0146] The dimming driver 170 can sequentially provide the analog dimming signal to the dimming blocks belonging to each of the plurality of rows, or sequentially provide the analog dimming signal to the dimming blocks belonging to each of the plurality of columns.

[0147] For example, the dimming driver 170 can input to activate the dimming blocks belonging to a row among the plurality of dimming blocks 200, and provide the analog dimming signal to the dimming blocks input to activate. Subsequently, the dimming driver 170 can input to activate the dimming blocks belonging to a row among the plurality of dimming blocks, and provide the analog dimming signal to the dimming blocks input to activate.

[0148] The dimming driver 170 that sequentially provides the analog dimming signal to the plurality of dimming blocks 200 in the active matrix scheme will now be described in detail.

[0149] Figure 10An example of a light emitting device included in a display apparatus according to an embodiment is illustrated. Figure 11 An example of a driving device included in a display apparatus according to an embodiment is illustrated.

[0150] Referring to Figure 10 and Figure 11 , the display apparatus 10 includes a dimming driver 170, a plurality of driving devices 310, 320, 330, and 340 (collectively, 300), and a plurality of light sources 111.

[0151] The plurality of light sources can each include an LED, and can be divided into a plurality of dimming blocks 200. The plurality of light sources belonging to the same dimming block can form a group.

[0152] The plurality of driving devices 300 can receive an analog dimming signal from the dimming driver 170, and can apply a driving current to the plurality of light sources 111 according to the received analog dimming signal.

[0153] As illustrated in Figure 10 , the plurality of light sources belonging to one dimming block can receive a current from the same driving device. For example, the plurality of light sources belonging to the first dimming block 210 can receive a driving current from the first driving device 310. The plurality of light sources belonging to the second dimming block 220 can receive a driving current from the second driving device 320. The plurality of light sources belonging to the third dimming block 230 can receive a driving current from the third driving device 330. The plurality of light sources belonging to the fourth dimming block 240 can receive a driving current from the fourth driving device 340. In this manner, the plurality of light sources belonging to the nth dimming block can receive a driving current from the nth driving device.

[0154] Accordingly, the plurality of light sources belonging to one dimming block can receive a driving current having the same amplitude. Furthermore, the plurality of light sources belonging to one dimming block can emit light having the same intensity.

[0155] The driving devices 300 can receive an analog dimming signal from the dimming driver 170, and store the received analog dimming signal when input activation by the dimming driver 170. Furthermore, when input activation, the plurality of driving devices 300 can apply a driving current corresponding to the stored analog dimming signal to the plurality of light sources.

[0156] There are a plurality of scan lines S1 and S2 for providing a scan signal from the dimming driver 170 to the plurality of driving devices 300, and a plurality of data lines D1 and D2 for providing an analog dimming signal from the dimming driver 170 to the plurality of driving devices 300.

[0157] The plurality of dimming blocks 200 can be arranged in a plurality of rows and a plurality of columns. The driving devices that apply driving currents to the light sources belonging to the same row of dimming blocks can share the same scan line. For example, the first driving device 310 and the second driving device 320 can share the first scan line S1, and the third driving device 330 and the fourth driving device 340 can share the second scan line S2.

[0158] In addition, the driving devices that apply driving currents to the light sources belonging to the same column of dimming blocks can share the same data line. For example, the first driving device 310 and the third driving device 330 can share the first data line D1, and the second driving device 320 and the fourth driving device 340 can share the second data line D2.

[0159] The plurality of driving devices 300 can be activated by the scan signal input of the dimming driver 170, and can receive the analog dimming signal from the dimming driver 170.

[0160] For example, when the dimming driver 170 is outputting a scan signal through the first scan line S1, the first driving device 310 and the second driving device 320 can receive the analog dimming signal through the first data line D1 and the second data line D2, respectively. On the other hand, the third driving device 330 and the fourth driving device 340 cannot receive the analog dimming signal.

[0161] In addition, when the dimming driver 170 is outputting a scan signal through the second scan line S2, the third driving device 330 and the fourth driving device 340 can receive the analog dimming signal through the first data line D1 and the second data line D2, respectively. On the other hand, the first driving device 310 and the second driving device 320 cannot receive the analog dimming signal.

[0162] Upon receiving the analog dimming signal, the plurality of driving devices 300 can store the received analog dimming signal, and can apply driving currents to the plurality of light sources according to the stored analog dimming signal.

[0163] For example, even when the dimming driver 170 is outputting a scan signal through the first scan line S1, the third driving device 330 and the fourth driving device 340 can apply driving currents to the plurality of light sources included in the third dimming block 230 and the fourth dimming block 240.

[0164] In addition, even when the dimming driver 170 is outputting a scan signal through the second scan line S2, the first driving device 310 and the second driving device 320 can apply driving currents to the plurality of light sources included in the first dimming block 210 and the second dimming block 220.

[0165] According to such an operation based on the active matrix scheme, the plurality of driving devices 300 can sequentially receive the analog dimming signal from the dimming driver 170, and can apply a driving current to the plurality of light sources even when in an input inactivation state of not receiving the analog dimming signal from the dimming driver 170.

[0166] Further, according to the operation based on the active matrix scheme, the number of pins of the dimming driver 170 providing the analog dimming signal to the plurality of dimming blocks 200 is reduced. Further, the number of signal lines providing the analog dimming signal from the dimming driver 170 to the plurality of dimming blocks 200 is reduced. Accordingly, the number of dimming blocks can be increased without being limited to the number of pins of the dimming driver 170.

[0167] The plurality of driving devices 300 can include various topological circuits to perform the operation based on the active matrix scheme.

[0168] For example, as shown in FIG. 4, each of the plurality of driving devices 300 can include a single-capacitor dual-transistor (1C2T) topological circuit. Figure 11

[0169] Each of the plurality of driving devices 300 can include a driving transistor Tdr, a switching transistor Tsw, and a storage capacitor Cs.

[0170] The driving transistor Tdr includes an input terminal, an output terminal, and a control terminal. The input terminal of the driving transistor Tdr can be connected to the power source Vdd, and the output terminal can be connected to the plurality of light sources. The driving transistor Tdr can apply a driving current to the plurality of light sources based on a voltage at the control terminal.

[0171] The storage capacitor Cs is provided between the output terminal and the control terminal of the driving transistor Tdr. The storage capacitor Cs can output a constant voltage by storing input charges. The driving transistor Tdr can apply a driving current to the plurality of light sources based on a voltage output by the storage capacitor Cs.

[0172] The switching transistor Tsw also includes an input terminal, an output terminal, and a control terminal. The input terminal of the switching transistor Tsw can be connected to the data line D1 or D2, and the output terminal of the switching transistor Tsw can be connected to the control terminal of the driving transistor Tdr. The control terminal of the switching transistor Tsw can be connected to the scan line S1 or S2.

[0173] ​The switching transistor Tsw can be turned on by a scan signal of the scan line S1 or S2, and can transfer an analog dimming signal of the data line D1 or D2 to the storage capacitor Cs and the driving transistor Tdr. The analog dimming signal of the data line D1 or D2 is input to a control terminal of the driving transistor Tdr, and the driving transistor Tdr can apply a driving current corresponding to the analog dimming signal to the plurality of light sources. The storage capacitor Cs can store a charge from the analog dimming signal, and output a voltage corresponding to the analog dimming signal.

[0174] Thereafter, even when input of the scan signal is stopped and the switching transistor Tsw is turned off, the storage capacitor Cs can still output the voltage corresponding to the analog dimming signal, and the driving transistor Tdr can still apply the driving current corresponding to the analog dimming signal to the plurality of light sources.

[0175] As Figure 11 indicated in the circuit, the driving device 300 is not limited thereto. For example, the driving device 300 can include a 3T1C topology circuit obtained by adding a transistor for compensating for a bulk effect of the driving transistor Tdr.

[0176] The driving device 300 can be, for example, provided in a single chip in which Figure 11 indicated in the circuit is integrated in a single semiconductor chip. Figure 11 indicated in the circuit can be integrated in a single semiconductor chip.

[0177] Figure 12 An arrangement of a dimming driver, a driving device, and a light source included in a display apparatus according to an embodiment is illustrated.

[0178] As described above, the plurality of light sources 111 are arranged on the plate 112. Specifically, the plurality of light sources 111 are arranged on a front surface of the plate 112 (a surface from which the light source module emits light).

[0179] In order to efficiently wire, the dimming driver 170 can be arranged on a rear surface of the plate 112 (a surface from which the light source module does not emit light, or an opposite surface of the surface from which the light source module emits light). Returning to Figure 2 The plate 112 on which the driving device 300, the plurality of light sources 111, and the dimming driver 170 are mounted can be supported by the chassis 15. The chassis 15 can also support the control assembly 50 and the power assembly 60. Specifically, the plate 112 can be arranged on a front surface of the chassis 15, and the control assembly 50 can be arranged on a rear surface of the chassis 15.

[0180] The dimming driver 170 can receive dimming data from the image processor 90 included in the control assembly 50 and receive power from the power assembly 60. Accordingly, to efficiently wire, the dimming driver 170 can be disposed on the rear surface of the plate 112 and can be connected to the control assembly 50 and the power assembly 60 through a wire passing through the opening 15a formed at the chassis 15.

[0181] The dimming driver 170 disposed on the rear surface of the plate 112 is disposed at a position corresponding to the position of the opening 15a. This can prevent the light emitting apparatus 100 from becoming thicker due to the dimming driver 170 disposed on the rear surface of the plate 112.

[0182] To minimize the thickness of the light emitting apparatus 100, the driving device 300 can be disposed on the same surface (front surface) as the plurality of light sources 111, as Figure 12 indicated. When the driving device 300 is mounted on the same surface as the plurality of light sources 111, the thickness of the light source module 110 is thinner than when the driving device 300 is mounted on a different surface from the plurality of light sources 111.

[0183] As such, when the driving device 300 is disposed on the same surface (front surface) as the plurality of light sources 111, there can be an optical defect due to the driving device 300.

[0184] As Figure 12 indicated, the reflective sheet 120 is disposed on the plate 112. To secure an optical distance between the reflective sheet 120 and the diffusion plate 130, the reflective sheet 120 can be closely attached to the plate 112. Accordingly, a recessed portion 301 of the reflective sheet 120 can be formed at a place where the driving device 300 is disposed.

[0185] The recessed portion 301 on the reflective sheet 120 can cause an optical defect in the light emitting apparatus 100. As a simple example, as Figure 12 indicated, a portion of light emitted from the light source can be reflected from the surface of the diffusion plate 130. The light reflected from the surface of the diffusion plate 130 can be reflected again from the reflective sheet 120. In this case, the recessed portion 301 of the reflective sheet 120 can form an area in which light that has been reflected from the surface of the diffusion plate 130 does not reach (or an area in which light of a weak intensity reaches, which will be hereinafter referred to as a dark area).

[0186] When there are sporadic dark areas, diffusion of light on the diffusion plate 130 and the optical sheet 140 can prevent the dark areas from being displayed on the screen 12 of the display apparatus 10. However, when there are regular dark areas, the dark areas can be displayed on the screen 12 of the display apparatus 10.

[0187] The driving device 300 is arranged such that a dark area from the arrangement of the driving device 300 is not displayed on the screen 12 of the display apparatus 10.

[0188] Figure 13 An example of an arrangement of a driving device included in a display apparatus according to an embodiment is illustrated.

[0189] Referring to Figure 13 , the light source module 110 includes a plurality of light sources 111 arranged in a matrix form on a plate 112.

[0190] In this case, the plurality of light sources 111 can be classified into a plurality of dimming blocks 200. In other words, a front surface (a surface from which light is emitted) of the light source module 110 can be divided into a plurality of dimming regions 400 by the plurality of dimming blocks 200.

[0191] Further, the light source module 110 can further include a plurality of driving devices 300 for applying driving current to the light sources, and each of the plurality of driving devices 300 can apply driving current to the light sources included in the dimming blocks. Each driving device 300 is located in a dimming region of the dimming block.

[0192] In order to prevent or suppress optical defects due to the arrangement of the driving devices 300, the driving devices 300 can be irregularly arranged in the dimming regions. The relative positions of the driving devices in different dimming blocks can be different from each other.

[0193] For example, as Figure 13 illustrated, a front surface (a surface from which light is emitted) of the light source module 110 is divided into a first dimming region 410 corresponding to the first dimming block 210, a second dimming region 420 corresponding to the second dimming block 220, a third dimming region 430 corresponding to the third dimming block 230, and a fourth dimming region 440 corresponding to the fourth dimming block 240.

[0194] The driving devices for applying driving current to a plurality of light sources (e.g., twelve light sources as Figure 13 illustrated) are located in each dimming region 400. In the first dimming region 410, a first driving device 310 can be arranged to apply driving current to the light sources belonging to the first dimming block 210. In the same manner, in the second dimming region 420, the third dimming region 430, and the fourth dimming region 440, a second driving device 320, a third driving device 330, and a fourth driving device 340 can be arranged to apply driving current to the light sources belonging to the second dimming block 220, the third dimming block 230, and the fourth dimming block 240.

[0195] The first driving device 310 is disposed in a right lower portion from the center of the first light adjusting region 410, and the second driving device 320 is disposed in a left upper portion from the center of the second light adjusting region 420. Also, the third driving device 330 is disposed in a right upper portion from the center of the third light adjusting region 430, and the fourth driving device 340 is disposed in a left lower portion from the center of the fourth light adjusting region 440.

[0196] The arrangement of the first driving device 310 in the first light adjusting region 410 is different from the arrangement of the second driving device 320 and the third driving device 330 in the second light adjusting region 420 and the third light adjusting region 430 adjacent to the first light adjusting region 410. Also, the arrangement of the second driving device 320 in the second light adjusting region 420 is different from the arrangement of the driving devices in the adjacent light adjusting regions of the second light adjusting region 420.

[0197] Thus, the arrangement of the driving devices in a light adjusting region is different from the arrangement of the driving devices in another light adjusting region adjacent to the former light adjusting region. Here, the different arrangement means that the relative positions of the driving devices from the center of the light adjusting region are different.

[0198] The first light adjusting region 410, the second light adjusting region 420, the third light adjusting region 430, and the fourth light adjusting region 440 are arranged in a plurality of rows and a plurality of columns.

[0199] The arrangement of the first driving device 310 in the first light adjusting region 410 is different from the arrangement of the second driving device 320 in the second light adjusting region 420 belonging to the same row as the first light adjusting region 410 and adjacent to the first light adjusting region 410. Also, the arrangement of the first driving device 310 in the first light adjusting region 410 is different from the arrangement of the third driving device 330 in the third light adjusting region 430 belonging to the same column as the first light adjusting region 410 and adjacent to the first light adjusting region 410.

[0200] Thus, the arrangement of the driving devices in one of a plurality of light adjusting regions arranged in a plurality of rows and a plurality of columns is different from the arrangement of the driving devices in another light adjusting region belonging to the same row or column as the one light adjusting region and adjacent to the one light adjusting region.

[0201] Also, the driving device in the one of the plurality of light adjusting regions arranged in the plurality of rows and the plurality of columns is disposed outside a virtual line defined by two driving devices in two light adjusting regions belonging to the same row as the one light adjusting region and adjacent to the one light adjusting region.

[0202] The first driving device 310 in the first light adjusting region 410 in the first row and the first column is disposed on the right side from the center of the light adjusting region, and the second driving device 320 in the second light adjusting region 420 in the first row and the second column is disposed on the left side from the center of the light adjusting region.

[0203] Thus, the driving devices arranged in the plurality of light adjustment zones in the same row are alternately arranged to the left and right of the center of the light adjustment zone.

[0204] The first driving device 310 in the first light adjustment zone 410 in the first row and the first column is arranged in the lower portion of the center of the light adjustment zone, and the third driving device 330 in the third light adjustment zone 430 in the second row and the first column is arranged in the upper portion of the center of the light adjustment zone.

[0205] Thus, the driving devices arranged in the plurality of light adjustment zones in the same column are alternately arranged above and below the center of the light adjustment zone.

[0206] The first driving device 310 is arranged closest to the second driving device 320 and the third driving device 330, and the first to third driving devices 310, 320, and 330 are not arranged on a straight line. In other words, the first driving device 310 is arranged outside a virtual line connecting the second driving device 320 and the third driving device 330 closest to the first driving device 310.

[0207] Thus, one of the plurality of driving devices is arranged outside a virtual line defined by two driving devices closest to the one driving device.

[0208] As described above, the plurality of driving devices can be irregularly arranged in the plurality of light adjustment zones or arranged at any position in the plurality of light adjustment zones.

[0209] Figure 14 An example of the arrangement of driving devices included in a display device according to an embodiment is illustrated.

[0210] As Figure 14 illustrated, the driving devices of four adjacent light adjustment zones in the same row can be arranged at different positions with respect to the center of the light adjustment zone.

[0211] The first light adjustment zone 410, the second light adjustment zone 420, the fifth light adjustment zone 450, and the sixth light adjustment zone 460 can be arranged in the same row. The first driving device 310 can be located above the center of the first light adjustment zone 410, the second driving device 320 can be located to the left of the center of the second light adjustment zone 420, the fifth driving device 350 can be located below the center of the fifth light adjustment zone 450, and the sixth driving device 360 can be located to the right of the center of the sixth light adjustment zone 460.

[0212] The driving devices of four adjacent light adjustment zones in the same column can be arranged at different positions with respect to the center of the light adjustment zone.

[0213] The first, third, ninth, and eleventh light adjustment areas 410, 430, 490, and 490b can be arranged in the same column. The first driving device 310 can be located above the center of the first light adjustment area 410, the third driving device 330 can be located to the right of the center of the third light adjustment area 430, the ninth driving device 390 can be located below the center of the ninth light adjustment area 490, and the eleventh driving device 390b can be located to the left of the center of the eleventh light adjustment area 490b.

[0214] In this way, the arrangement of the driving devices in the light adjustment area is different from the arrangement of the driving devices in the other light adjustment areas adjacent to the aforementioned light adjustment area.

[0215] The arrangement of the driving devices in one of the plurality of light adjustment areas arranged in a plurality of rows and a plurality of columns is different from the arrangement of the driving devices in another light adjustment area belonging to the same row or column as the one light adjustment area and adjacent to the one light adjustment area.

[0216] One of the plurality of driving devices is arranged outside a virtual line defined by two driving devices closest to the one driving device.

[0217] Figure 15 An example of the arrangement of driving devices included in a display device according to an embodiment is illustrated.

[0218] As Figure 15 illustrated, the driving devices of four adjacent light adjustment areas can be arranged at different positions with respect to the center of the light adjustment area.

[0219] The first, second, third, and fourth light adjustment areas 410, 420, 430, and 440 can be arranged adjacent to each other. The first driving device 310 can be located in the lower right portion from the center of the first light adjustment area 410, the second driving device 320 can be located in the upper right portion from the center of the second light adjustment area 420, the third driving device 330 can be located in the upper left portion from the center of the third light adjustment area 430, and the fourth driving device 340 can be located in the lower left portion from the center of the fourth light adjustment area 440.

[0220] The second, fourth, fifth, and seventh light adjustment areas 420, 440, 450, and 470 can be arranged adjacent to each other. The second driving device 320 can be located in the upper right portion from the center of the second light adjustment area 420, the fourth driving device 340 can be located in the lower left portion from the center of the fourth light adjustment area 440, the fifth driving device 350 can be located in the lower right portion from the center of the fifth light adjustment area 450, and the seventh driving device 370 can be located in the upper left portion from the center of the seventh light adjustment area 470.

[0221] The third light adjusting area 430, the fourth light adjusting area 440, the ninth light adjusting area 490, and the tenth light adjusting area 490a can be arranged adjacent to each other. The third driving device 330 can be located in an upper left portion from a center of the third light adjusting area 430, the fourth driving device 340 can be located in a lower left portion from a center of the fourth light adjusting area 440, the ninth driving device 390 can be located in a lower right portion from a center of the ninth light adjusting area 490, and the tenth driving device 390a can be located in an upper right portion from a center of the tenth light adjusting area 490a.

[0222] In this way, the arrangement of the driving device in the light adjusting area is different from the arrangement of the driving device in the other light adjusting area adjacent to the aforementioned light adjusting area.

[0223] The arrangement of the driving device in one of the plurality of light adjusting areas arranged in a plurality of rows and a plurality of columns is different from the arrangement of the driving device in another light adjusting area belonging to the same row or column as the one light adjusting area and adjacent to the one light adjusting area.

[0224] One of the plurality of driving devices is arranged outside a virtual line defined by two driving devices closest to the one driving device.

[0225] With this arrangement of the driving device 300, optical defects due to the driving device 300 can be prevented or suppressed.

[0226] Although it is described above that the driving device applies a driving current to the light source belonging to one light adjusting block, it is not limited thereto. For example, the driving device can apply a driving current to the light source belonging to a plurality of light adjusting blocks.

[0227] Figure 16 An example of a light adjusting driver and a light emitting device included in a display device according to an embodiment is illustrated. Figure 17 An example of a driving device included in a display device according to an embodiment is illustrated.

[0228] Referring to Figure 16 and Figure 17 , the display device 10 includes a light adjusting driver 170, a plurality of driving devices 500 (510 and 520), and a plurality of light sources 111.

[0229] The plurality of light sources 111 can be the same as the plurality of light sources illustrated in Figure 10 .

[0230] The plurality of driving devices 500 can receive an analog light adjusting signal from the light adjusting driver 170, and can apply a driving current to the plurality of light sources 111 according to the received analog light adjusting signal.

[0231] According to Figure 16As illustrated, each of the plurality of driving devices 500 can apply a driving current to the light sources included in the plurality of dimming blocks 200. For example, the first driving device 510 can apply a driving current to the plurality of light sources belonging to the first dimming block 210 and the plurality of light sources belonging to the second dimming block 220. The second driving device 520 can apply a driving current to the plurality of light sources belonging to the third dimming block 230 and the plurality of light sources belonging to the fourth dimming block 240. In the same manner, the nth driving device can apply a driving current to the plurality of light sources belonging to the (2n-1)th dimming block and the plurality of light sources belonging to the 2nth dimming block.

[0232] In this case, the driving devices 500 can apply different driving currents to the light sources belonging to different dimming blocks based on the analog dimming signal. For example, the first driving device 510 can apply a first driving current to the light sources belonging to the first dimming block 210 according to the analog dimming signal, and apply a second driving current to the light sources belonging to the second dimming block 220 according to the analog dimming signal.

[0233] When activated by the input of the dimming driver 170, the plurality of driving devices 500 can receive the analog dimming signal from the dimming driver 170 and store the received analog dimming signal. Also, when activated by the input, the plurality of driving devices 500 can apply a driving current corresponding to the stored analog dimming signal to the plurality of light sources.

[0234] The plurality of driving devices 500 can be activated by the input of the scan signal of the dimming driver 170, and can receive the analog dimming signal from the dimming driver 170. When the analog dimming signal is received, the plurality of driving devices 500 can store the received analog dimming signal, and can apply a driving current to the plurality of light sources according to the stored analog dimming signal.

[0235] For example, when the dimming driver 170 outputs a scan signal through the first scan line S1, the first driving device 510 can receive an analog dimming signal through the first data line D1. The first driving device 510 can apply a driving current to the light sources of the first dimming block 210 and the light sources of the second dimming block 220 according to the received analog dimming signal. The second driving device 520 can not receive the analog dimming signal, but can still apply a driving current to the light sources of the third dimming block 230 and the light sources of the fourth dimming block 240.

[0236] Further, when the dimming driver 170 outputs a scan signal through the second scan line S2, the second driving device 520 can receive an analog dimming signal through the first data line D1. The second driving device 520 can apply driving current to the light sources of the third dimming block 230 and the light sources of the fourth dimming block 240 according to the received analog dimming signal. The first driving device 510 can not receive the analog dimming signal, but can still apply driving current to the light sources of the first dimming block 210 and the light sources of the second diming block 220.

[0237] According to such an operation based on the active matrix scheme, the number of pins of the dimming driver 170 that provides the analog dimming signal to the plurality of dimming blocks 200 is reduced.

[0238] Further, since one driving device applies driving current to the light sources of a plurality of dimming blocks, the number of driving devices is reduced. Further, optical defects due to the arrangement of the driving devices can also be reduced.

[0239] The plurality of driving devices 500 can include various topological circuits to perform the operation based on the active matrix scheme.

[0240] For example, as Figure 17 illustrated, each of the plurality of driving devices 500 can include a pair of 1C2T topological circuits.

[0241] Each driving device 500 can include a first driving transistor Tdr1, a first switching transistor Tsw1, a first storage capacitor Cs1, a second driving transistor Tdr2, a second switching transistor Tsw2, and a second storage capacitor Cs2.

[0242] The first and second driving transistors Tdr1 and Tdr2, the first and second switching transistors Tsw1 and Tsw2, and the first and second storage capacitors Cs1 and Cs2 can each be the same as the driving transistor Tdr, the switching transistor Tsw, and the storage capacitor Cs as Figure 11 illustrated.

[0243] The first driving transistor Tdr1, the first switching transistor Tsw1, and the first storage capacitor Cs1 can apply driving current to the light sources of a dimming block different from the dimming block of the second driving transistor Tdr2, the second switching transistor Tsw2, and the second storage capacitor Cs2.

[0244] As Figure 17 illustrated, the circuit is only an example of the driving device 500, and is not limited thereto. For example, the driving device 500 can include a 3T1C topological circuit obtained by adding a transistor for compensating for the bulk effect of the driving transistors Tdr1 and Tdr2.

[0245] The driving device 500 can be provided, for example, in a single chip in which the circuits illustrated are integrated. Figure 17 In other words, the circuits illustrated can be integrated in a single semiconductor chip. Figure 17 The circuits illustrated can be integrated in a single semiconductor chip.

[0246] The driving device 500 is arranged such that a dark region from the arrangement of the driving device 500 is not displayed on the screen 12 of the display apparatus 10.

[0247] Figure 18 An example of an arrangement of a driving device included in a display apparatus according to an embodiment is illustrated.

[0248] Referring to Figure 18 , the light source module 110 includes a plurality of light sources 111 arranged in a matrix form on a board 112.

[0249] In this case, the plurality of light sources 111 can be classified into a plurality of dimming blocks 200. In other words, a front surface (a surface from which light is emitted) of the light source module 110 can be divided into a plurality of dimming regions 400 occupied by the plurality of dimming blocks 200.

[0250] Further, the light source module 110 can further include a plurality of driving devices 500 for applying driving current to the light sources, and each of the plurality of driving devices 500 can apply driving current to the light sources included in two dimming blocks. Each driving device 500 is located within two dimming regions of two dimming blocks.

[0251] In order to prevent or suppress optical defects due to the arrangement of the driving device 500, the driving device 500 can be irregularly arranged in the dimming regions. The relative positions of the driving devices in different dimming blocks can be different from each other.

[0252] For example, as Figure 18 illustred, a front surface (a surface from which light is emitted) of the light source module 110 is divided into a first dimming region 410, a second dimming region 420, a third dimming region 430, a fourth dimming region 440, a fifth dimming region 450, a sixth dimming region 460, a seventh dimming region 470, an eighth dimming region 480, and the like.

[0253] The light sources in two dimming regions are driven by a single driving device. In other words, the driving device can drive a plurality of light sources arranged in two dimming regions as Figure 18The first driving device 510 can apply driving current to the light sources in the first dimming zone 410 and the second dimming zone 420, the second driving device 520 can apply driving current to the light sources in the third dimming zone 430 and the fourth dimming zone 440, the third driving device 530 can apply driving current to the light sources in the fifth dimming zone 450 and the sixth dimming zone 460, and the fourth driving device 540 can apply driving current to the light sources in the seventh dimming zone 470 and the eighth dimming zone 480.

[0254] In this case, the first driving device 510 is located in the second dimming zone 420, the second driving device 520 is located in the third dimming zone 430, the third driving device 530 is located in the sixth dimming zone 460, and the fourth driving device 540 is located in the seventh dimming zone 470.

[0255] Thus, no driving device is located in the adjacent dimming zone to the dimming zone in which the driving device is located. In addition, the driving device is located in the dimming zone adjacent to the dimming zone in which no driving device is located.

[0256] In other words, in the same row, the dimming zone in which the driving device is located and the dimming zone in which no driving device is located are alternately arranged. In addition, in the same column, the dimming zone in which the driving device is located and the dimming zone in which no driving device is located are alternately arranged.

[0257] The first driving device 510 is located to the left of the center of the second dimming zone 420, and the second driving device 520 is located to the right of the center of the third dimming zone 430. In addition, the third driving device 530 is located to the left of the center of the sixth dimming zone 460, and the fourth driving device 540 is located to the right of the center of the seventh dimming zone 470.

[0258] Specifically, as Figure 18 shown, the driving devices can be arranged in a zigzag form along the dimming zones of a pair of adjacent columns.

[0259] Thus, the arrangement of one driving device in one dimming zone can be different from the arrangement of another driving device adjacent to the one driving device in another dimming zone.

[0260] Figure 19 An example of the arrangement of the driving devices included in the display device according to an embodiment is shown.

[0261] As Figure 19 shown, the first driving device 510 can be located in the lower portion of the first dimming zone 410, the second driving device 520 can be located in the upper portion of the fourth dimming zone 440, the third driving device 530 can be located in the lower portion of the fifth dimming zone 450, and the fourth driving device 540 can be located in the upper portion of the eighth dimming zone 480.

[0262] Thus, the light adjustment regions in which the driving devices are located and the light adjustment regions in which no driving devices are located are alternately arranged.

[0263] Further, the arrangement of one driving device in a light adjustment region can be different from the arrangement of another driving device adjacent to the one driving device in another light adjustment region.

[0264] With this arrangement of the driving devices 500, optical defects due to the driving devices 500 can be prevented or suppressed.

[0265] Figure 20 An example of the arrangement of the driving devices included in the display apparatus according to an embodiment is illustrated.

[0266] As Figure 20 illustrated, the first driving device 510 can be located in the lower portion of the first light adjustment region 410, the second driving device 520 can be located in the upper portion of the fourth light adjustment region 440, the third driving device 530 can be located in the upper portion of the fifth light adjustment region 450, and the fourth driving device 540 can be located in the lower portion of the eighth light adjustment region 480.

[0267] Thus, the light adjustment regions in which the driving devices are located and the light adjustment regions in which no driving devices are located are alternately arranged.

[0268] Further, the arrangement of one driving device in a light adjustment region can be different from the arrangement of another driving device adjacent to the one driving device in another light adjustment region.

[0269] Figure 21 An example of the arrangement of the driving devices included in the display apparatus according to an embodiment is illustrated.

[0270] Referring to Figure 21 , the display apparatus 10 includes a plurality of driving devices 600 (610, 620, 630, and 640) and a plurality of light sources 111.

[0271] Each driving device 600 can apply a driving current to the light sources included in four light adjustment blocks. Here, a region defined by the light sources included in the four light adjustment blocks driven by a single driving device can be defined as a driving region 700.

[0272] For example, the first driving device 610 can apply a driving current to light sources arranged in a first driving area 710 including four dimming blocks, and the second driving device 620 can apply a driving current to light sources arranged in a second driving area 720 including four dimming blocks. Also, the third driving device 630 can apply a driving current to light sources arranged in a third driving area 730 including four dimming blocks, and the fourth driving device 640 can apply a driving current to light sources arranged in a fourth driving area 740 including four dimming blocks.

[0273] The arrangement of the driving devices 600 is different depending on the driving areas 700. The position of the driving devices in one driving area is different from the position of the driving devices in another driving area adjacent to the former driving area.

[0274] For example, the first driving device 610 can be located in the upper left portion of the first driving area 710, and the second driving device 620 can be located in the lower left portion of the second driving area 720. The third driving device 630 can be located in the upper right portion of the third driving area 730, and the fourth driving device 640 can be located in the lower right portion of the fourth driving area 740.

[0275] With this arrangement of the driving devices 600, optical defects due to the driving devices 600 can be prevented or suppressed.

[0276] A display device according to an embodiment includes a liquid crystal panel and a light emitting device. In this case, the light emitting device can include a board, a plurality of dimming blocks each including at least one light source provided on a first surface of the board, and a plurality of driving devices provided on the first surface of the board, each of the plurality of driving devices applying a driving current to the at least one light source included in each of the plurality of dimming blocks. Also, the plurality of driving devices can be respectively arranged at different relative positions within a plurality of dimming areas defined by the plurality of dimming blocks.

[0277] For example, the arrangement of the driving devices in one dimming area of the plurality of dimming areas is different from the arrangement of the driving devices in other dimming areas adjacent to the one dimming area.

[0278] For example, the plurality of dimming areas can be arranged in a plurality of rows and a plurality of columns, and the arrangement of the driving devices in one dimming area of the plurality of dimming areas can be different from the arrangement of the driving devices in other dimming areas arranged in the same row or column as the one dimming area and adjacent to the one dimming area.

[0279] For example, one driving device of the plurality of driving devices can be arranged outside a virtual line defined by two driving devices closest to the one driving device.

[0280] Accordingly, optical defects due to the plurality of driving devices can be prevented or suppressed.

[0281] The plurality of light adjustment blocks can emit light having at least different luminances. In other words, local light adjustment is achieved.

[0282] Each of the plurality of driving devices can apply a driving current to a light source included in at least two light adjustment blocks.

[0283] Accordingly, the number of the plurality of driving devices can be reduced, and in addition, optical defects due to the plurality of driving devices can also be reduced.

[0284] One of the plurality of driving devices can be disposed in a light adjustment region defined by one of the at least two light adjustment blocks.

[0285] In this case, the light adjustment regions in which driving devices are disposed and the light adjustment regions in which the one driving device is not disposed can be alternately disposed.

[0286] In addition, the arrangement of driving devices in a driving region defined by the at least two light adjustment blocks can be different from the arrangement of driving devices in other driving regions adjacent to the driving region.

[0287] Accordingly, optical defects due to the plurality of driving devices can be prevented or suppressed.

[0288] A light adjustment driver can be further included on the second surface of the board to provide a light adjustment signal to the plurality of driving devices.

[0289] Accordingly, efficient wiring between the light adjustment driver and the control component / power component can be possible.

[0290] The light adjustment driver can provide a light adjustment signal to the plurality of driving devices in an active matrix scheme.

[0291] For example, the plurality of driving devices can be arranged in a plurality of rows and a plurality of columns, and the light adjustment driver can provide a scan signal to the driving devices arranged in one of the plurality of rows and a light adjustment signal to the driving devices arranged in the plurality of columns.

[0292] Accordingly, the number of pins for the light adjustment driver to provide a light adjustment signal to the plurality of driving devices is reduced.

[0293] The at least one light source can include an LED directly contacting a wiring on the board and an optical dome covering the LED. The LED has a DBR formed on a surface from which light is emitted.

[0294] Accordingly, the LED can emit stronger light in a lateral direction than in a vertical direction.

[0295] In addition, the embodiments of the disclosure can be implemented in the form of a recording medium for storing instructions to be executed by a computer. The instructions can be stored in the form of program codes, and when executed by a processor, can generate program modules to perform operations in the embodiments of the disclosure. The recording medium can correspond to a computer-readable recording medium.

[0296] The computer-readable recording medium includes any type of recording medium on which data can be stored, which can be later read by a computer. For example, it can be a ROM, a RAM, a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, etc.

[0297] The machine-readable storage medium can be provided in the form of a non-transitory storage medium. The term "non-transitory storage medium" can mean a tangible device that does not include a signal (e.g., an electromagnetic wave), and can not distinguish between data semi-permanently and temporarily stored in the storage medium. For example, the non-transitory storage medium can include a buffer that temporarily stores data.

[0298] In an embodiment of the disclosure, the aforementioned method according to various embodiments of the disclosure can be provided in a computer program product. The computer program product can be a commercial product that can be traded between a seller and a buyer. The computer program product can be distributed in the form of a storage medium (e.g., a compact disc read only memory (CD-ROM)) or through an application store (e.g., a play store TM ), directly between two user devices (e.g., smart phones), or online (e.g., download or upload). In the case of online distribution, at least part (e.g., a downloadable application) of the computer program product can be at least temporarily stored or arbitrarily created in a storage medium that can be read by an apparatus such as a manufacturer's server, an application store's server, or a relay server.

[0299] So far, the embodiments of the disclosure have been described with reference to the accompanying drawings. It will be obvious to those having ordinary skill in the art that the disclosure can be implemented in other forms without changing the technical idea or essential characteristics of the disclosure. The above-described embodiments are merely examples, and should not be construed as limiting.

Claims

1. A display device, comprising: LCD panel; Multiple light sources configured to emit light; A substrate includes a plurality of driving regions on a first side of the substrate, each of the plurality of driving regions including a plurality of dimming blocks, and each of the plurality of dimming blocks including at least one of the plurality of light sources; as well as A plurality of driving devices, each of which is provided in a corresponding driving region of the plurality of driving regions and configured to control the driving current of at least one light source in each dimming block of the corresponding driving region, wherein each of the plurality of driving devices is disposed between light sources within a corresponding driving region on the first side of the substrate. Any two adjacent drive zones among the plurality of drive zones include the first drive zone and the second drive zone. The first driver of the plurality of driver devices is disposed at a first position in the first drive area. The second driving device among the plurality of driving devices is disposed at a second position in the second driving area, and The first position and the second position are located in relatively different regions of the first driving area and the second driving area, respectively.

2. The display device of claim 1, wherein each of the plurality of driving regions is defined by at least one light source in a dimming block that receives a driving current from a respective driving device of the plurality of driving devices.

3. The display device of claim 1, wherein each of the plurality of dimming blocks is defined by a light source that receives the same drive current from the same drive device of the plurality of drive devices.

4. The display device according to claim 3, wherein the same driving device among the plurality of driving devices is configured to provide different driving currents to light sources in different dimming blocks belonging to the same driving region.

5. The display device according to claim 1, wherein each of the plurality of driving zones comprises four dimming blocks.

6. The display device according to claim 1, wherein the first position is located on the upper half of the first driving area, and the second position is located on the lower half of the second driving area.

7. The display device according to claim 1, wherein the first position is located on the right half of the first driving area, and the second position is located on the left half of the second driving area.

8. The display device of claim 1, wherein the plurality of driving devices and the plurality of light sources are provided on the first side of the substrate.

9. The display device of claim 8, wherein each of the plurality of driving devices is configured to receive a signal via a second side of the substrate.

10. The display device according to claim 1, wherein the third driving device of the plurality of driving devices is disposed at a third position in a third driving region adjacent to the second driving region among the plurality of driving regions, and The third driving device is spaced apart from the line defined by the first driving device and the second driving device.

11. The display device of claim 1, wherein each of the plurality of driving devices comprises: First transistor; A capacitor connected to the control terminal of the first transistor; as well as A second transistor connected to the control terminal of the first transistor.

12. The display device of claim 1, wherein the plurality of driving devices are controlled by an active matrix method.

13. The display device according to claim 1, The third driving device among the plurality of driving devices is disposed at a third position in the third driving region among the plurality of driving regions. The fourth driving device among the plurality of driving devices is disposed at the fourth position in the fourth driving region among the plurality of driving regions. The first drive area and the second drive area are set on the first row. The third drive area and the fourth drive area are located on the second row. The first driving area and the third driving area are arranged on the first column. The second driving area and the fourth driving area are located on the second column. The first position and the third position are located in relatively different areas of the first driving area and the third driving area, respectively. The second position and the fourth position are located in relatively different regions of the second drive area and the fourth drive area, respectively. The third position and the fourth position are located in relatively different regions of the third driving area and the fourth driving area, respectively.

14. The display device according to claim 13, further comprising: The first scan line is connected to the first driving device and the second driving device; The second scan line is connected to the third and fourth driving devices; A first data line is connected to the first driving device and the third driving device, and The second data line is connected to the second driving device and the fourth driving device.

15. The display device of claim 14, further comprising a dimming driver, the dimming driver being configured to: During a first duration, the first driver and the second driver are activated via the first scan line, and dimming signals are provided to the first driver and the second driver via the first data line and the second data line, respectively. During the second duration, the third and fourth driving devices are activated via the second scan line, and dimming signals are provided to each of the third and fourth driving devices via the first and second data lines, respectively.

16. The display device of claim 1, wherein each of the plurality of light sources comprises a light-emitting diode disposed on the substrate in an on-board chip manner and an optical dome having a vertical cross-section having an arcuate or semicircular shape.

17. The display device of claim 16, wherein the intensity of the first light beam emitted from the light-emitting diode in a first direction perpendicular to the substrate is less than the intensity of the second light beam emitted from the light-emitting diode in a second direction different from the first direction.

18. A display device, comprising: LCD panel; Multiple light sources configured to emit light; A substrate includes a plurality of driving regions on a first side of the substrate, wherein any two driving regions adjacent to each other include a first driving region and a second driving region, and each driving region includes a plurality of dimming blocks, each of the plurality of dimming blocks including at least one light source. as well as A plurality of driving devices, including a first driving device and a second driving device, each driving device being associated with a corresponding driving region in one of the plurality of driving regions and configured to control the driving current of at least one light source in each dimming block in the corresponding driving region, each of the plurality of driving devices being disposed between light sources within a corresponding driving region on the first side of the substrate. The first driving device is disposed at a first position in the first driving area, and the second driving device is disposed at a second position in the second driving area. The first position in the first driving region and the second position in the second driving region are relatively different positions.

19. A light-emitting device, comprising: Multiple light sources configured to emit light; A substrate includes a plurality of driving regions on a first side of the substrate, each of the plurality of driving regions including a plurality of dimming blocks, and each of the plurality of dimming blocks including at least one of the plurality of light sources; as well as A plurality of driving devices, each of which is provided in a respective driving region of the plurality of driving regions and configured to control a driving current for at least one light source in each dimming block of the respective driving region, wherein each of the plurality of driving devices is disposed between light sources within a respective driving region on the first side of the substrate. Any two adjacent drive zones among the plurality of drive zones include the first drive zone and the second drive zone. The first driver of the plurality of driver devices is disposed at a first position in the first drive area. The second driving device among the plurality of driving devices is disposed at a second position in the second driving area, and The first position and the second position are located in relatively different regions of the first driving area and the second driving area, respectively.

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