Display device

Abstract

The invention discloses a display device. A display device of the present invention may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and coupled to the frame; the plurality of light sources are arranged on the front surface of the substrate; the protruding devices are located on the front face of the substrate and protrude towards the display panel from the front face of the substrate, and the protruding devices and the multiple rows and the multiple columns of the multiple light sources are arranged in a staggered mode.

Description

Technical Field

[0001] The present invention relates to a display device. Background Art

[0002] With the development of the information society, the demand for display devices has also increased in various forms. For this reason, in recent years, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro luminescent Display), and VFD (Vacuum Fluorescent Display) have been studied and used.

[0003] Among them, the LCD panel has a TFT substrate and a color substrate facing each other with a liquid crystal layer interposed therebetween, and can display an image using light provided from a backlight unit.

[0004] In recent years, many studies have been conducted on the structure of a substrate on which a light source such as an LED is mounted. In addition, many studies have been conducted to improve the quality of images displayed by a display panel. Summary of the invention

[0005] The present invention aims to solve the aforementioned problems and other problems.

[0006] Another object of the present invention is to provide a display device in which the substrate on which the plurality of light sources are mounted is a single-sided printed circuit board (PCB).

[0007] Another object of the present invention is to provide a structure for improving image quality by minimizing the situation where the light coverage of a plurality of light sources on a substrate is encroached upon by other protruding devices on the substrate.

[0008] Another object of the present invention is to provide various examples regarding the configuration of protruding devices between a plurality of light sources.

[0009] Another object of the present invention is to provide a structure that minimizes the situation where a reflective sheet covering a substrate is lifted up by a protruding device on the substrate.

[0010] Another object of the present invention is to provide various examples of structures for bringing a reflective sheet on a protruding device closer to a substrate.

[0011] According to the present invention for achieving the above or other purposes, a display device may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and combined with the frame; a plurality of light sources arranged on the front side of the substrate; and a protruding device located on the front side of the substrate and protruding from the front side of the substrate toward the display panel, and the protruding device may be staggered with the plurality of rows and columns of the plurality of light sources.

[0012] The effects of the display device of the present invention are explained as follows.

[0013] According to at least one embodiment of the present invention, a display device can be provided in which a substrate on which a plurality of light sources are mounted is a single-sided PCB.

[0014] According to at least one embodiment of the present invention, a structure can be provided for improving image quality by minimizing the situation where the light coverage of a plurality of light sources on a substrate is encroached upon by other protruding devices on the substrate.

[0015] According to at least one embodiment of the present invention, various examples regarding the configuration of a protrusion device between a plurality of light sources may be provided.

[0016] According to at least one embodiment of the present invention, a structure can be provided that minimizes a situation in which a reflective sheet covering a substrate is lifted by a protruding device on the substrate.

[0017] According to at least one embodiment of the present invention, various examples of structures for bringing a reflective sheet on a protruding device closer to a substrate may be provided.

[0018] The additional scope of applicability of the present invention can be made clear by the following detailed description. However, those skilled in the art can clearly understand the various changes and modifications within the thought and scope of the present invention, and therefore, it should be understood that the specific embodiments such as the detailed description and the preferred embodiments of the present invention are only exemplary. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figures 1 to 31 is a diagram showing an example of a display device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings. The same or similar components are denoted by the same reference numerals regardless of the figure numbers, and repeated description thereof will be omitted.

[0021] The suffixes "module" and "unit" of the constituent elements used in the following description are given or used interchangeably only in consideration of ease of writing of the description, and they themselves do not have meanings or functions that distinguish one from another.

[0022] In addition, when describing the embodiments disclosed in this specification, if it is determined that the specific description of the relevant known technology may confuse the main purpose of the embodiments disclosed in this specification, the detailed description will be omitted. In addition, the drawings are only used to make the embodiments disclosed in this specification easier to understand, and it should be understood that the technical ideas disclosed in this specification are not limited by the drawings, but cover all changes, equivalents and substitutes included in the ideas and technical scope of the present invention.

[0023] Terms including ordinal numbers such as first, second, etc. may be used to describe various constituent elements, but the constituent elements are not limited by the terms. The terms are only used to distinguish one constituent element from other constituent elements.

[0024] When it is mentioned that a certain component is "connected" or "coupled" to another component, it should be understood that it can be directly connected or coupled to the other component, or other components may exist between them. On the contrary, when it is mentioned that a certain component is "directly connected" or "directly coupled" to another component, it should be understood that there are no other components between them.

[0025] Unless clearly indicated otherwise in the context, an expression in the singular includes an expression in the plural.

[0026] In the present application, it should be understood that terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, constituent elements, parts or combinations thereof described in the specification, and cannot preclude the existence or additional possibility of one or more other features or numbers, steps, actions, constituent elements, parts or combinations thereof.

[0027] The directions of up (U), down (D), left (Le), right (Ri), front (F) and back (R) shown in the drawings are only for the convenience of explanation, and the technical ideas disclosed in this specification are not limited thereto.

[0028] Reference Figure 1 , the display device 1 may include a display panel 10. The display panel 10 may display an image.

[0029] The display device 1 may include a first long side LS1, a second long side LS2 opposite to the first long side LS1, a first short side SS1 adjacent to the first long side LS1 and the second long side LS2, and a second short side SS2 opposite to the first short side SS1. On the other hand, for ease of explanation, the lengths of the first long side LS1 and the second long side LS2 are shown to be longer than the lengths of the first short side SS1 and the second short side SS2, but the lengths of the first long side LS1 and the second long side LS2 may also be substantially the same as the lengths of the first short side SS1 and the second short side SS2.

[0030] The direction parallel to the long sides LS1, LS2 of the display device 1 may be referred to as a left-right direction or a first direction DR1. The first short side SS1 side may be referred to as a left side (Le, x), and the second short side SS2 side may be referred to as a right side Ri.

[0031] The direction parallel to the short sides SS1 and SS2 of the display device 1 may be referred to as an up-down direction or a second direction DR2. The first long side LS1 side may be referred to as an upper side (U, y), and the second long side LS2 side may be referred to as a lower side D.

[0032] The direction perpendicular to the long sides LS1, LS2 and the short sides SS1, SS2 of the display device 1 may be referred to as a front-rear direction or a third direction DR3. The direction in which the display panel 10 displays an image may be referred to as a front direction (F, z), and the opposite direction may be referred to as a rear direction R.

[0033] The first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 may be referred to as the edge of the display device 1. In addition, the portion where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 intersect each other may be referred to as a corner. The portion where the first short side SS1 and the first long side LS1 intersect may be referred to as a first corner Ca. The portion where the first long side LS1 and the second short side SS2 intersect may be referred to as a second corner Cb. The portion where the second short side SS2 and the second long side LS2 intersect may be referred to as a third corner Cc. The portion where the second long side LS2 and the first short side SS1 intersect may be referred to as a fourth corner Cd.

[0034] Reference Figure 1 and Figure 2 , the display device 1 may include a display panel 10 , a side frame 20 , a backlight unit, a frame 80 , and a back cover 90 .

[0035] The display panel 10 may form the front side of the display device 1 and may display an image. The display panel 10 may display an image by timing outputting RGB (Red, Green or Blue) of each pixel through a plurality of pixels. The display panel 10 may be divided into an active area (active area) for displaying an image and an inactive area (de-active area) for not displaying an image. The display panel 10 may include a front substrate (front substrate) and a rear substrate (rear substrate) facing each other via a liquid crystal layer. The display panel 10 may be referred to as an LCD panel 10.

[0036] The front substrate may include a plurality of pixels composed of red, green, and blue sub-pixels. The front substrate may output light corresponding to red, green, or blue according to a control signal.

[0037] The back substrate may include a plurality of switching devices. The back substrate may switch pixel electrodes. For example, the pixel electrodes may change the molecular arrangement of the liquid crystal layer according to a control signal input from the outside. The liquid crystal layer may include liquid crystal molecules. The arrangement of the plurality of liquid crystal molecules may change accordingly with the voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transfer the light provided from the backlight unit to the front substrate or block the light.

[0038] The side frame 20 may extend along the frame of the display panel 10. The side frame 20 may cover the frame of the display panel 10. For example, the side frame 20 may include a plastic or metal material. The side frame 20 may be referred to as a guide panel 20.

[0039] The backlight unit may be located behind the display panel 10. The backlight unit may be located in front of the frame 80 and may be combined with the frame 80. The backlight unit may be driven in an overall driving mode or in a local driving mode such as local dimming or impulse. The backlight unit may include a plurality of light sources providing light to the front, a substrate 40 on which the plurality of light sources are mounted, a plurality of lenses 53 covering the plurality of light sources, a reflective sheet 60 covering the front of the substrate 40, and an optical portion 30 located in front of the reflective sheet 60. On the other hand, a reflective material may also be coated on the front of the substrate 40.

[0040] The optical part 30 may be opposite to the display panel 10 with the side frame 20 as a reference. The optical part 30 may uniformly transfer the light of the light source to the display panel 10. The optical part 30 may include a diffusion plate 31 and an optical sheet 32.

[0041] The diffuser 31 may be located between the reflective sheet 60 and the optical sheet 32. The diffuser 31 may diffuse the light of the light source. Also, an air gap may be formed between the reflective sheet 60 and the diffuser 31. The air gap may function as a buffer, and the light of the light source may be diffused more widely by the air gap. The support member 39 may be located between the reflective sheet 60 and the diffuser 31, may be combined with the reflective sheet 60, and may support the diffuser 31.

[0042] The optical sheet 32 ​​may be adjacent to or in contact with the front surface of the diffuser plate 31. The optical sheet 32 ​​may include at least one sheet. For example, the optical sheet 32 ​​may include a plurality of sheets having different functions from each other, and the plurality of sheets may be bonded or adhered to each other. For example, the first optical sheet 32a may be a diffuser sheet, and the second optical sheet 32b may be a prism sheet.

[0043] The frame 80 may be located behind the backlight unit. The display panel 10, the side frame 20, and the backlight unit may be combined with the frame 80. The frame 80 may support the above-mentioned and later-mentioned display device components. For example, the frame 80 may include a metal material such as an aluminum alloy. The frame 80 may be referred to as a main frame 80, a module cover 80, or a cover bottom 80.

[0044] The rear cover 90 may cover the rear of the frame 80 and may be combined with the frame 80. For example, the rear cover 90 may be an injection molded product of a resin material. As another example, the rear cover 90 may include a metal material.

[0045] Reference Figure 3 The flat plate portion 81 may define a front surface of the frame 80. A plurality of frame holes 81a, 81b, 81c, 81d, 81e, 81f, 81g, 81h, 81i may be formed in the flat plate portion 81.

[0046] Reference Figure 3 and 4 The heat sink 83 may cover the front of the flat plate portion 81 and may be combined with the flat plate portion 81. A plurality of heat sink holes 83a, 83b, 83c, 83d, 83e, 83f, 83g, 83h, 83i may be formed in the heat sink 83 and may be aligned with the plurality of frame holes 81a, 81b, 81c, 81d, 81e, 81f, 81g, 81h, 81i. The heat sink 83 may also be omitted.

[0047] Reference Figure 5 and Figure 6The substrate 41 may be combined with the front side of the frame 80 or the heat sink 83. The substrate 41 may be a PCB (Printed Circuit Board). For example, the substrate 41 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), and silicon. The substrate 41 may have a plate shape. The substrate 41 may be referred to as a substrate 40.

[0048] The substrate 41 may include at least one substrate 41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, and 41i, which may cover the plurality of regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, and 83A9 of the heat sink 83, respectively.

[0049] The light source 51 may be mounted on the front side of the substrate 41. A plurality of light sources 51 may be arranged in a matrix on the front side of the substrate 41. The light source 51 may be an LED (Light Emitting Diode) chip or an LED package. The light source 51 may be composed of a colored LED or a white LED that emits at least one of red, green, blue, etc. The light source 51 may be a mini LED. An electrode pattern may be formed on the substrate 41, and an adapter (connector) and the light source 51 may be connected. The power supply board may provide power to the light source 51 through the substrate 41. For example, the electrode pattern may be a carbon nanotube electrode pattern.

[0050] Reference Figures 7 to 9 , the substrate 41 may be attached to the front side of the heat sink 83 by an adhesive member 40AD such as a double-sided tape. Alternatively, an adhesive may be applied to the back side of the substrate 41. The reflective sheet 60 may be attached to the front side of the substrate 41 by an adhesive member 60AD such as a double-sided tape. Alternatively, an adhesive may be applied to the back side of the reflective sheet 60. The reflective sheet 60 may reflect light provided from the light source 51 or reflected from the diffuser 31 to the front (see FIG. Figure 2 ). For example, the reflective sheet 60 may include a metal and / or metal oxide having a high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), or titanium dioxide (TiO2). For example, a resin may be deposited or coated on the reflective sheet 60. The reflective sheet 60 may have at least one. A plurality of reflective sheets 60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i may cover (a plurality of) substrates 41 (refer to Figure 5 ).

[0051] The hole 601 may be formed in the reflective sheet 60, and the light source 51 or the lens 53 covering the light source 51 may be located in the hole 601. The lens 53 may penetrate the hole 60Ada of the bonding member 60AD and the hole 60a of the reflective sheet 60. The lens 53 may include a silicon material, which may expand the light directivity angle. The diameter of the hole 601 may be greater than the diameter of the lens 53. The number of holes 601 may be the same as the number of light sources 51 or lenses 53.

[0052] On the other hand, the support member 39 sequentially passes through the hole 60b of the reflection sheet 60, the hole 60ADb of the adhesive member 60AD, the hole 40s of the substrate 41, and the hole 40ADb of the adhesive member 40AD, and can be detachably combined with the heat dissipation plate 83 and / or the frame 80. The front end of the support member 39 can support the back side of the diffusion plate 31 (refer to Figure 2 ).

[0053] Reference Fig.10 and Fig.11 The substrate 42 may be combined with the front side of the frame 80 or the heat sink 83. The substrate 42 may be a PCB (Printed Circuit Board). For example, the substrate 42 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 42 may have a fork shape. The substrate 42 may be referred to as the substrate 40.

[0054] The substrate 42 may include a main body 421 and a plurality of legs 422. The main body 421 may extend long. The plurality of legs 422 may extend from one long side of the main body 421 in a direction intersecting the main body 421. The length direction of the main body 421 may be defined in the vertical direction, and the length direction of the plurality of legs 422 may be defined in the horizontal direction. The width 42La of the main body 421 may be smaller than the length 42Ha of the main body 421, and may be smaller than or similar to the length 42Lb of the plurality of legs 422. The plurality of legs 422 may be spaced apart from each other in the length direction of the main body 421. The interval Gb between the plurality of legs 422 may be the same as the width 42Hb of the legs 422.

[0055] The substrate 42 may have at least one substrate 42. The plurality of substrates 42 may be respectively combined or attached to the plurality of regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9 of the heat sink 83 (see Figure 4 ).

[0056] The light source 51 may be mounted on the front of the substrate 42. The plurality of light sources 51 may be arranged in a matrix form on the front of the body 421 and the plurality of legs 422. The reflective sheet 60 may be combined or attached to the front of the substrate 42 and may have a hole for setting the light source 51 or a lens covering the light source 51. The plurality of reflective sheets 60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i may cover the (plural) substrate 42.

[0057] On the other hand, the support member 39 sequentially passes through the reflector 60 and the substrate 42, and can be detachably combined with the heat sink 83 and / or the frame 80. The front end of the support member 39 can support the back side of the diffuser 31 (refer to Figure 2 ).

[0058] Refer again Figure 6 and Fig.11 , the substrate 40 may be a single sided PCB. The single sided PCB may be referred to as a 1-layer PCB or a single layer PCB. A plurality of light sources 51 and a plurality of diodes 52 may be mounted on the front side of the substrate 40. The plurality of diodes 52 may be disposed between the plurality of light sources 51. The diodes 52 may be ESD protection diodes for preventing electrostatic discharge (ESD). The diodes 52 may be zener diodes that may block reverse current. The diodes 52 may be referred to as protruding devices 52 or protruding portions 52.

[0059] On the other hand, connectors, jumpers, TP points, patterns for strengthening ESD grounding, etc. may be formed on the front surface of the substrate 40 , and threaded holes may also be formed on the substrate 40 .

[0060] Reference Fig.12 and Fig.13 , the plurality of light sources 51 may be arranged in a matrix form on the substrate 40. The plurality of lenses 53 may cover the plurality of light sources 51 and may be fixed on the substrate 40. For example, the light source 51 may have a rectangular parallelepiped shape, and the lens 53 may have a dome or hemispherical shape. The lens 53 may include a silicon material and may expand the light pointing angle.

[0061] In the row direction (i.e., horizontal direction), the plurality of light sources 51 may be spaced apart from each other at a predetermined interval Ph. The interval Ph may be referred to as a horizontal interval Ph. In the column direction (i.e., vertical direction), the plurality of light sources 51 may be spaced apart from each other at a predetermined interval Pv. The interval Pv may be referred to as a vertical interval Pv.

[0062] For example, the first light source 51a and the second light source 51b may be located in the first row R1, and the third light source 51c and the fourth light source 51d may be located in the second row R2. At this time, the first light source 51a and the third light source 51c may be located in the first column C1, and the second light source 51b and the fourth light source 51d may be located in the second column C2.

[0063] Reference Fig.12 The diode 52 may be located between the first row R1 and the second row R2 and may be located on the first column C1. That is, with the first column C1 as a reference, the diode 52 may be aligned with the first light source 51a and the third light source 51c.

[0064] In this case, the diode 52 may encroach upon the coverage of the first light source 51a and / or the coverage of the third light source 51c. Here, the coverage may be a range (region) of light having an illuminance of a specified proportion relative to the surface illuminance of the lens covering the light source. The radius of the coverage of the first light source 51a may be greater than the distance from the first light source 51a to the center between the first light source 51a and the third light source 51c. The radius of the coverage of the third light source 51c may be greater than the distance from the third light source 51c to the center between the first light source 51a and the third light source 51c.

[0065] The interval Dva between the diode 52 and the first light source 51a may be the same as the interval Dvb between the diode 52 and the third light source 51c. The diode 52 may encroach upon the respective coverage of the first light source 51a and the third light source 51c at the center thereof.

[0066] Or, with Fig.12 The diode 52 may be disposed closer to the first light source 51a than the third light source 51c to encroach on the coverage of the first light source 51a, or may be disposed closer to the third light source 51c than the first light source 51a to encroach on the coverage of the third light source 51c.

[0067] Thus, mixing of the light from the first light source 51a and the light from the third light source 51c may not be sufficiently achieved due to the diode 52. As a result, a portion of the display panel corresponding to the diode 52 may be relatively dark or spotty.

[0068] Reference Fig.13 The diode 52 may be located between the first column C1 and the second column C2 and may be located on the first row R1. That is, with the first row R1 as a reference, the diode 52 may be aligned with the first light source 51a and the second light source 51b.

[0069] In this case, the diode 52 may encroach upon the coverage of the first light source 51a and / or the coverage of the second light source 51b. Here, the coverage may be a range (region) of light having an illumination of a specified proportion relative to the surface illumination of the lens covering the light source. The radius of the coverage of the first light source 51a may be greater than the distance from the first light source 51a to the center between the first light source 51a and the second light source 51b. The radius of the coverage of the second light source 51b may be greater than the distance from the second light source 51b to the center between the first light source 51a and the second light source 51b.

[0070] The interval Dha between the diode 52 and the first light source 51a may be the same as the interval Dhb between the diode 52 and the second light source 51b. The diode 52 may encroach upon the respective coverage of the first light source 51a and the second light source 51b at the center of the first light source 51a and the second light source 51b.

[0071] Or, with Fig.13 The diode 52 may be disposed closer to the first light source 51a than the second light source 51b to encroach on the coverage of the first light source 51a, or may be disposed closer to the second light source 51b than the first light source 51a to encroach on the coverage of the second light source 51b.

[0072] Thus, mixing of the light of the first light source 51a and the light of the second light source 51b may not be sufficiently achieved due to the diode 52. As a result, a portion of the display panel corresponding to the diode 52 may be relatively dark or spotty.

[0073] Reference Fig.14 and Fig.15 , the diode 52 may be located between the first row R1 and the second row R2, and may be located between the first column C1 and the second column C2. The diode 52 may be located on a virtual straight line DL (i.e., a diagonal line) connecting the first light source 51a as the first light source (or the nth light source) of the first row R1 and the fourth light source 51d as the second light source (or the n+1th light source) of the second row R2. That is, the diode 52 may be arranged to be staggered with the first row R1 and the second row R2 and the first column C1 and the second column C2. The diode 52 may be located at the center of the straight line DL, or may be offset from the center of the straight line DL to one of the first light source 51a to the fourth light source 51d.

[0074] In this case, the diode 52 may not occupy the coverage of the first light source 51a to the fourth light source 51d, or may be different from the reference light source 51a. Fig.12 and Fig.13 Compared with the previous example, it can be relatively less encroached.

[0075] The interval Dda between the diode 52 and the first light source 51a may be greater than the interval Dva (refer to Fig.12 ), the interval Ddc between the diode 52 and the third light source 51c may be greater than the interval Dvb (refer to Fig.12 The diode 52 may not occupy the respective coverage areas of the first light source 51a and the third light source 51c, or may be aligned with the reference light source 51a. Fig.12 Compared with the previous example, it can be relatively less encroached.

[0076] The interval Dda between the diode 52 and the first light source 51a may be greater than the interval Dha (refer to Fig.13 ), the interval Ddb between the diode 52 and the second light source 51b may be greater than the interval Dhb (refer to Fig.13 The diode 52 may not occupy the respective coverage areas of the first light source 51a and the second light source 51b, or may be aligned with the reference light source 51a. Fig.13 Compared with the previous example, it can be relatively less encroached.

[0077] For example, the interval Ddb between the diode 52 and the second light source 51b may be the same as the interval Ddc between the diode 52 and the third light source 51c, and the interval Ddd between the diode 52 and the fourth light source 51d may be the same as the interval Dda between the diode 52 and the first light source 51a. The diode 52 may not encroach on the respective coverage of the second light source 51b and the fourth light source 51d, or may encroach relatively less.

[0078] Thus, the light from the first to fourth light sources 51a to 51d around the diode 52 can be mixed sufficiently. As a result, the phenomenon that the display portion corresponding to the diode 52 becomes relatively dark or spots can be improved.

[0079] The cross section of the light source 51 may be rectangular. Fig.14 , the long sides La and Lb of the cross section may be parallel to the vertical direction, and the short sides Sa and Sb of the cross section may be parallel to the horizontal direction. Fig.15 The long sides La and Lb of the cross section may be parallel to the horizontal direction, and the short sides Sa and Sb of the cross section may be parallel to the vertical direction. Alternatively, the cross section may be inclined in a direction intersecting the horizontal direction and the vertical direction.

[0080] Reference Fig.16 , the diode 52 may be offset from the center of the straight line DL toward the first column C1.

[0081] The interval Dea between the diode 52 and the first light source 51a may be greater than the interval Dva (refer to Fig.12 ), the interval Dec between the diode 52 and the third light source 51c may be greater than the interval Dvb (refer to Fig.12 In this case, the diode 52 may not encroach upon the coverage of the first light source 51a and the third light source 51c, or may be aligned with the reference light source 51a. Fig.12 Compared with the previous example, it can be relatively less encroached.

[0082] Alternatively, the diode 52 may also be offset from the center of the straight line DL to the first row R1. In this case, the diode 52 may not encroach on the coverage of the first light source 51a and the second light source 51b, or may be aligned with the reference light source 51a. Fig.13 Compared with the previous example, it can be relatively less encroached.

[0083] Reference Fig.17 , the diode 52 may be offset from the center of the straight line DL toward the second column C2.

[0084] The interval Deb between the diode 52 and the second light source 51b may be greater than the interval Dva (refer to Fig.12 ), the interval Ded between the diode 52 and the fourth light source 51d may be greater than the interval Dvb (refer to Fig.12 In this case, the diode 52 may not encroach upon the coverage of the second light source 51b and the fourth light source 51d, or may be aligned with the reference light source 51b. Fig.12 Compared with the previous example, it can be relatively less encroached.

[0085] Alternatively, the diode 52 may also be offset from the center of the straight line DL to the second row R2. In this case, the diode 52 may not encroach on the coverage of the third light source 51c and the fourth light source 51d, or may be aligned with the reference light source 51c. Fig.13 Compared with the previous example, it can be relatively less encroached.

[0086] Reference Fig.18 , the plurality of diodes 52 may be arranged alternately with the plurality of rows R1, R2, R3, R4 of the plurality of light sources 51 and alternately with the plurality of columns C1, C2, C3, C4 of the light source 51. That is, the matrix composed of the plurality of diodes 52 may be staggered (i.e., shifted) in the diagonal direction with the matrix composed of the plurality of light sources 51.

[0087] Reference Fig.19 , the jumper 54 can be installed on the front side of the substrate 40. The jumper 54 can connect a plurality of wirings on the substrate 40. Like the diode 52, the jumper 54 can be separated from the plurality of light sources 51 and can be staggered with the plurality of rows R1, R2, R3, R4 and the plurality of columns C1, C2, C3, C4 of the light source 51.

[0088] The connector 55 can be mounted on the front surface of the substrate 40. Figure 2) can be electrically connected to the power supply board and the main board through a cable, and can provide power and current to the plurality of light sources 51 on the substrate 40. The connector 55 can be arranged between the plurality of columns C1, C2, C3, and C4 of the light sources 51. The length of the connector 55 can be greater than the vertical spacing Pv between the plurality of light sources 51. For example, the length of the connector 55 can be about twice the vertical spacing Pv. The width of the connector 55 can be less than the horizontal spacing Ph between the plurality of light sources 51.

[0089] The height of the diode 52 protruding forward from the front of the substrate 40 may be greater than the height of the jumper 54 protruding forward from the front of the substrate 40. The height of the diode 52 protruding forward from the front of the substrate 40 may be greater than the height of the connector 55 protruding forward from the front of the substrate 40. In order to make the reflective sheet 60 (refer to Fig. 9 and Fig.10 ) The phenomenon of warping around the connector 55 occupying a relatively large area in the substrate 40 is minimized, and the diode 52 can be arranged away from the connector 55. At least two columns (or at least two rows) of the plurality of light sources 51 can be located between the connector 55 and the diode 52. For example, the connector 55 can be located between the first column C1 and the second column C2, and the (plural) diodes 52 can be located between the third column C3 and the fourth column C4. In addition, the (plural) jumper 54 can be located between the second column C2 and the third column C3.

[0090] Reference Fig. 20 , the density of the plurality of diodes 52 may be different depending on the position of the substrate 40. The density of the plurality of diodes 52 around the connector 55 may be relatively low. For example, the plurality of diodes 52 may be located on the body 421 of the substrate 42, and the body 421 may include a first area AR1, a second area AR2, and a third area AR3. The connector 55 may be located on the second area AR2, and the plurality of diodes 52 may be densely distributed in the first area AR1 and the third area AR3. The second area AR2 may be the central area of ​​the body 421.

[0091] Thus, the reflective sheet 60 (see FIG. 1 ) covering the substrate 40 can be Fig. 9 and Fig.10 ) The phenomenon that the periphery of the connector 55 occupying a relatively large area in the substrate 40 is lifted by the diode 52 is minimized. On the other hand, the plurality of jumpers 54 having a lower protrusion height than the diode 52 may be located on the second area AR2 where the connector 55 is located.

[0092] Reference Fig.21 and Fig. 22, the plurality of light sources 51 on the substrate 40 can be divided into a plurality of local dimming blocks (BL). One side of each of the plurality of diodes 52 can be electrically connected to the power line of each of the plurality of local dimming blocks, and the other side of each of the plurality of diodes can be electrically connected to the feedback line of each of the plurality of local dimming blocks. Power can be supplied to the local dimming block from the connector 55 through the power line, and the current passing through the local dimming block can flow to the LED driver (not shown) through the feedback line and the connector 55. The LED driver can adjust the amount of current flowing through the local dimming block or block the flow of current, so that the brightness of the plurality of light sources 51 belonging to the local dimming block can be adjusted, and local dimming can be achieved as a result.

[0093] The diodes 52 may have a number corresponding to the number of local dimming blocks BL. The first to twenty-fifth diodes 521, 522, 523, 524, 525, 526, 527, 528, 529, 5210, 5211, 5212, 5213, 5214, 5215, 5216, 5217, 5218, 5219, 5220, 5221, 5222, 5223, 5224, 5225 may be electrically connected to the first to twenty-fifth local dimming blocks BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8, BL9, BL10, BL11, BL12, BL13, BL14, BL15, BL16, BL17, BL18, BL19, BL20, BL21, BL22, BL23, BL24, BL25, respectively.

[0094] Such a plurality of local dimming blocks BL may be arranged sequentially from bottom to top or from top to bottom, thereby simplifying the circuit pattern design and reducing the number of the plurality of jumpers.

[0095] Reference Fig.23 , the reflective sheet 60 may be attached to the front surface of the substrate 40 by an adhesive member 60AD such as a double-sided tape, and may cover the substrate 40 avoiding the light source 51 and the lens 53. The lens 53 may be located in the hole 601 of the reflective sheet 60. The reflective sheet 60 may cover the diode 52 fixed on the front surface of the substrate 40. The portion of the reflective sheet 60 covering the diode 52 may protrude further forward than other portions due to the diode 52.

[0096] Reference Fig.24, the cutting line 602a may be formed at the portion of the reflector 60 covering the diode 52. The cutting line 602a may be formed long along the length direction of the diode 52. The cutting line 602a may be parallel to the longitudinal axis of the diode 52, and the length of the cutting line 602a may be greater than the length of the diode 52. The cross section of the diode 52 may be a longitudinally long rectangle, and the cutting line 602a may be referred to as a vertical cutting line 602a.

[0097] Thus, the cut line 602a can be opened from the diode 52, and as a result, the portion of the reflector 60 covering the diode 52 can be moved to a position close to the substrate 40. That is, the portion of the reflector 60 covering the diode 52 and the diffuser 31 (see Figure 2 ) can be close to the distance between other parts of the reflective sheet 60 and the diffuser 31, which can improve the light uniformity. In addition, since the reflective sheet 60 is close to the substrate 40, it will not be easily separated from the substrate 40.

[0098] Reference Fig.25 , the cutting line 602b may be formed at the portion of the reflector 60 covering the diode 52. The cutting line 602b may be formed long along the length direction of the diode 52. The cutting line 602b may be parallel to the longitudinal axis of the diode 52, and the length of the cutting line 602b may be greater than the length of the diode 52. The cross section of the diode 52 may be a horizontally long rectangle, and the cutting line 602b may be referred to as a horizontal cutting line 602b.

[0099] Thus, the cut line 602b can be opened from the diode 52, and as a result, the portion of the reflector 60 covering the diode 52 can be moved to a position close to the substrate 40. That is, the portion of the reflector 60 covering the diode 52 and the diffuser 31 (see Figure 2 ) can be close to the distance between other parts of the reflective sheet 60 and the diffuser 31, which can improve the light uniformity. In addition, since the reflective sheet 60 is close to the substrate 40, it will not be easily separated from the substrate 40.

[0100] Reference Fig.26, the cutting line 602c may be formed at the portion of the reflector 60 covering the diode 52. The cutting line 602c may have a "+" shape. The cutting line 602c may include a cutting line 602a and a cutting line 602b. The cutting line 602a may be referred to as a first portion 602a of the cutting line 602c, and the cutting line 602b may be referred to as a second portion 602b of the cutting line 602c. If the cross section of the diode 52 is a longitudinally long rectangle, the length of the first portion 602a may be greater than the length of the cross section, and the length of the second portion 602b may be greater than the width of the cross section. If the cross section of the diode 52 is a transversely long rectangle, the length of the second portion 602b may be greater than the length of the cross section, and the length of the first portion 602a may be greater than the width of the cross section.

[0101] Thus, the cut line 602c can be opened from the diode 52, and as a result, the portion of the reflector 60 covering the diode 52 can be moved closer to the substrate 40. That is, the portion of the reflector 60 covering the diode 52 and the diffuser 31 (see Figure 2 ) can be closer to the distance between other parts of the reflective sheet 60 and the diffuser 31, which can further improve the light uniformity. In addition, the reflective sheet 60 can be closer to the substrate 40 so that it will not be easily separated from the substrate 40.

[0102] Reference Fig. 27 The cutting line 602d may be formed at a portion of the reflector 60 that covers the diode 52. The cutting line 602d may be formed long in a direction inclined from the longitudinal axis of the diode 52 toward the first direction. The length of the cutting line 602d may be greater than the length of the diode 52. The cross section of the diode 52 may be a longitudinally or transversely long rectangle, and the cutting line 602d may be referred to as a first diagonal cutting line 602d.

[0103] Thus, the cut line 602d can be opened from the diode 52, and as a result, the portion of the reflector 60 covering the diode 52 can be moved to a position close to the substrate 40. That is, the portion of the reflector 60 covering the diode 52 and the diffuser 31 (see Figure 2 ) can be close to the distance between other parts of the reflective sheet 60 and the diffuser 31, which can improve the light uniformity. In addition, since the reflective sheet 60 is close to the substrate 40, it will not be easily separated from the substrate 40.

[0104] Reference Fig.28, the cutting line 602e may be formed at the portion of the reflector 60 covering the diode 52. The cutting line 602e may be formed long in a direction inclined from the longitudinal axis of the diode 52 toward the second direction. The length of the cutting line 602e may be greater than the length of the diode 52. The cross section of the diode 52 may be a longitudinally or transversely long rectangle, and the cutting line 602e may be referred to as a second diagonal cutting line 602e.

[0105] Thus, the cut line 602e can be opened from the diode 52, and as a result, the portion of the reflector 60 covering the diode 52 can be moved to a position close to the substrate 40. That is, the portion of the reflector 60 covering the diode 52 and the diffuser 31 (see Figure 2 ) can be close to the distance between other parts of the reflective sheet 60 and the diffuser 31, which can improve the light uniformity. In addition, since the reflective sheet 60 is close to the substrate 40, it will not be easily separated from the substrate 40.

[0106] Reference Fig.29 , the cut line 602f may be formed at a portion of the reflector 60 covering the diode 52. The cut line 602f may have an "x" shape. The cut line 602f may include a cut line 602d and a cut line 602e. The cut line 602d may be referred to as a first portion 602d of the cut line 602f, and the cut line 602e may be referred to as a second portion 602e of the cut line 602f. The cross section of the diode 52 may be a long rectangle in the longitudinal direction or in the transverse direction, and the lengths of the first portion 602d and the second portion 602e may be greater than the length of the diode 52.

[0107] Thus, the cut line 602f can be opened more easily by the diode 52, and as a result, the portion of the reflector 60 covering the diode 52 can be moved closer to the substrate 40. That is, the portion of the reflector 60 covering the diode 52 and the diffuser 31 (see Figure 2 ) can be closer to the distance between other parts of the reflector 60 and the diffuser 31, which can further improve the light uniformity. In addition, since the reflector 60 is closer to the substrate 40, it will not be easily separated from the substrate 40.

[0108] Reference Fig.30 , the through hole 603a can be formed in the portion of the reflector 60 facing the diode 52. The through hole 603a can have a polygonal shape such as a quadrilateral or a triangle. The diode 52 can be located in the through hole 603a and can be exposed to the front. At this time, the size of the through hole 603a can be larger than the size of the diode 52, or can be equal to or smaller than the size of the diode 52.

[0109] The front side of the diode 52 (or the front side and the side of the diode 52) may be coated with a reflective material (e.g., a white material). On the other hand, the front side of the substrate 40 may also be coated with a reflective material (e.g., a white material). The reflectivity of the reflective material coated on the diode 52 and the substrate 40 may be close to the reflectivity of the reflective sheet 60.

[0110] Thus, the portion of the reflector 60 around the diode 52 can be closely attached to the substrate 40. As a result, the portion of the reflector 60 around the diode 52 and the diffuser 31 (see FIG. Figure 2 ) can be the same as the distance between the other parts of the reflective sheet 60 and the diffuser 31, which can greatly improve the light uniformity. In addition, the reduction in light reflectivity (i.e., the phenomenon of dark areas) caused by the diodes 52 between the reflective sheet 60 and the diffuser 31 can be minimized. In addition, the reflective sheet 60 is closely attached to the substrate 40, so that it will not be easily separated from the substrate 40.

[0111] Reference Fig.31 , the through hole 603b may be formed in the portion of the reflector 60 facing the diode 52. The through hole 603b may have a circular or elliptical shape. The diode 52 may be located in the through hole 603b and may be exposed to the front. At this time, the size of the through hole 603b may be larger than the size of the diode 52, or equal to or smaller than the size of the diode 52.

[0112] The front side of the diode 52 (or the front side and the side of the diode 52) may be coated with a reflective material (e.g., a white material). On the other hand, the front side of the substrate 40 may also be coated with a reflective material (e.g., a white material). The reflectivity of the reflective material coated on the diode 52 and the substrate 40 may be close to the reflectivity of the reflective sheet 60.

[0113] Thus, the portion of the reflector 60 around the diode 52 can be closely attached to the substrate 40. As a result, the portion of the reflector 60 around the diode 52 and the diffuser 31 (see FIG. Figure 2 ) can be the same as the distance between the other parts of the reflective sheet 60 and the diffuser 31, which can greatly improve the light uniformity. In addition, the reduction in light reflectivity (i.e., the phenomenon of dark areas) caused by the diodes 52 between the reflective sheet 60 and the diffuser 31 can be minimized. In addition, the reflective sheet 60 is closely attached to the substrate 40, so that it will not be easily separated from the substrate 40.

[0114] Refer again Figures 24 to 31, the cutting line 602 and the through hole 603 can be positioned corresponding to the diode 52. That is, like the diode 52, the cutting line 602 and the through hole 603 can be staggered with the plurality of rows and columns of the plurality of light sources 51. In this case, the distance between the boundary of the cutting line 602 or the through hole 603 and the boundary of the hole 601 can be relatively large. Therefore, even if the cutting line 602 and the through hole 603 are opened by the diode 52, the reflector 60 will not be torn.

[0115] On the other hand, when the diodes, the cutting lines and the through holes are arranged in parallel with the plurality of rows or columns of the plurality of light sources 51, the distance between the boundary of the cutting lines or the through holes and the boundary of the hole 601 can be relatively small. If such cutting lines and through holes are opened by the diodes, the reflective sheet 60 may be torn.

[0116] Reference Figures 1 to 31 The display device of the present invention may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and combined with the frame; a plurality of light sources arranged on the front side of the substrate; and a protruding device located on the front side of the substrate and protruding from the front side of the substrate toward the display panel, wherein the protruding device may be staggered with the plurality of rows and the plurality of columns of the plurality of light sources.

[0117] The substrate may be a single sided PCB.

[0118] The protruding device may be a zener diode.

[0119] The plurality of light sources may include: a first light source located in the first column of the first row; a second light source located in the second column of the first row; a third light source located in the first column of the second row; and a fourth light source located in the second column of the second row; the protruding device may be located on a straight line connecting the first light source and the fourth light source or at a position adjacent to the straight line.

[0120] The protruding feature may be located at the center of the straight line.

[0121] A distance between the first light source and the protrusion device may be greater than a distance from the first light source to a center between the first light source and the third light source.

[0122] The protrusion device may include a plurality of protrusion devices that may be alternately arranged with the plurality of rows of the plurality of light sources and alternately arranged with the plurality of columns of the plurality of light sources.

[0123] The display device may further include: a reflective sheet covering the front surface of the substrate and having a plurality of holes for setting a plurality of the light sources; and a connector located on the front surface of the substrate, arranged between the plurality of the light sources, and covered by the reflective sheet.

[0124] With the front surface of the substrate as a reference, a protruding height of the protruding device may be greater than a protruding height of the connector, and at least two columns of the plurality of light sources may be located between the connector and the protruding device.

[0125] With the front surface of the substrate as a reference, the protruding height of the protruding device may be greater than the protruding height of the connector; the protruding device may include a plurality of protruding devices; the substrate may include a first area and a second area where the connector is provided; the density of the plurality of protruding devices in the first area may be higher than the density of the plurality of protruding devices in the second area.

[0126] The plurality of light sources may be divided into a plurality of local dimming blocks, the protruding device may include a plurality of diodes, the plurality of diodes may have the same number as the plurality of local dimming blocks and be electrically connected to the plurality of local dimming blocks; the plurality of local blocks may be arranged sequentially from top to bottom or from bottom to top on the substrate.

[0127] The display device may further include a reflective sheet covering the front surface of the substrate and the protruding device, the reflective sheet having a plurality of holes for setting a plurality of the light sources; the reflective sheet may include a cutting line formed in a portion of the reflective sheet covering the protruding device.

[0128] The cross-section of the protruding device may have a rectangular shape, and the cutting line may include a first portion parallel to a longitudinal axis of the protruding device and having a length longer than a length of the protruding device.

[0129] The cutting line may include a second portion intersecting the longitudinal axis of the protruding device and having a length longer than a width of the protruding device.

[0130] The display device may further include a reflective sheet, the reflective sheet covers the front surface of the substrate, the reflective sheet has a plurality of holes for arranging a plurality of the light sources; the protruding device may pass through the reflective sheet, and the front surface is coated with a reflective material.

[0131] The aforementioned certain embodiments or other embodiments of the present invention do not exclude or distinguish each other. The various components or functions of the aforementioned certain embodiments or other embodiments of the present invention may be mixed or combined.

[0132] For example, this means that the A configuration described in a specific embodiment and / or drawing can be combined with the B configuration described in another embodiment and / or drawing. In other words, it means that even if the combination between the configurations is not directly described, they can be combined except for the case where it is described that they cannot be combined.

[0133] The above detailed description should not be interpreted as limiting in all aspects, but should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

1. A display device, wherein: include: Display panel; a frame, located behind the display panel; A substrate, located between the display panel and the frame, and combined with the frame; A plurality of light sources are arranged on the front surface of the substrate; as well as a protruding device, located on the front surface of the substrate, and protruding from the front surface of the substrate toward the display panel; The protruding devices are arranged in a staggered manner with a plurality of rows and a plurality of columns of the plurality of light sources.

2. The display device according to claim 1, wherein: The substrate is a single-sided printed circuit board.

3. The display device according to claim 1, wherein: The protruding device is a voltage-stabilizing diode.

4. The display device according to claim 1, wherein: The plurality of light sources include: A first light source is located in the first column of the first row; a second light source, located in the second column of the first row; a third light source located in the first column of the second row; and a fourth light source, located in the second column of the second row; The protruding device is located on a straight line connecting the first light source and the fourth light source or at a position adjacent to the straight line.

5. The display device according to claim 4, wherein: The protruding feature is located at the center of the straight line.

6. The display device according to claim 4, wherein: A distance between the first light source and the protrusion device is greater than a distance from the first light source to a center between the first light source and the third light source.

7. The display device according to claim 1, wherein: The protruding devices include a plurality of protruding devices that are alternately arranged with the plurality of rows of the plurality of light sources and alternately arranged with the plurality of columns of the plurality of light sources.

8. The display device according to claim 1, wherein: Also includes: a reflective sheet, covering the front surface of the substrate, and having a plurality of holes for arranging a plurality of the light sources; and The connector is located on the front surface of the substrate, disposed between the plurality of light sources, and covered by the reflection sheet.

9. The display device according to claim 8, wherein: Taking the front surface of the substrate as a reference, the protruding height of the protruding device is greater than the protruding height of the connector; At least two columns of the plurality of light sources are located between the connector and the protruding device.

10. The display device according to claim 8, wherein: Taking the front surface of the substrate as a reference, the protruding height of the protruding device is greater than the protruding height of the connector; The protruding device comprises a plurality of protruding devices; The substrate includes a first area and a second area where the connector is disposed; A density of the protruding devices in the first region is higher than a density of the protruding devices in the second region.

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