TW202326258A - Light guide plate assembly, backlight module and display device - Google Patents
Light guide plate assembly, backlight module and display device Download PDFInfo
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- TW202326258A TW202326258A TW111106623A TW111106623A TW202326258A TW 202326258 A TW202326258 A TW 202326258A TW 111106623 A TW111106623 A TW 111106623A TW 111106623 A TW111106623 A TW 111106623A TW 202326258 A TW202326258 A TW 202326258A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
本發明主要為一種導光板，特別是有關於一種應用於背光模組的拼接式導光板組合。The present invention mainly relates to a light guide plate, in particular to a spliced light guide plate combination applied to a backlight module.
請參照第1圖，其係一種習知的直下式背光模組9，該習知的直下式背光模組9具有一框架91、數個LED光源92、一擴散板（Diffuser Plate ）93、一稜鏡片94及一上擴散片（Diffuser）95，其中，該數個LED光源92設置於該框架91內部，該擴散板93位於該數個LED光源92前方，該稜鏡片94位於該擴散板93與該上擴散片95之間。該習知的直下式背光模組9透過位於該框架91與該擴散板93之間的空氣層L進行外觀霧化，以及透過該稜鏡片94進行集光。Please refer to Figure 1, which is a known direct-type backlight module 9. The known direct-type backlight module 9 has a frame 91, several LED light sources 92, a diffuser plate (Diffuser Plate) 93, a A diffuser 94 and an upper diffuser (Diffuser) 95, wherein the plurality of LED light sources 92 are arranged inside the frame 91, the diffuser 93 is located in front of the plurality of LED light sources 92, and the diffuser 94 is located on the diffuser 93 and the upper diffuser 95. The conventional direct-lit backlight module 9 performs appearance atomization through the air layer L located between the frame 91 and the diffuser plate 93 , and collects light through the thin film 94 .
上述習知的直下式背光模組9的該數個LED光源92，由於為採用陣列型的排列方式，故可以很容易實現多分區獨立亮度控制，意即，可以實現局部背光調節和高動態範圍（HDR）效果的展現，但是為使得混光均勻，必須大幅度地增加該擴散板93與該空氣層L厚度，導致該習知的直下式背光模組9的整體厚度亦相對增加，不利於薄型化設計的發展。再者，過厚的該擴散板93又造成該習知的直下式背光模組9的輝度大減，而且該數個LED光源92的顆數也無法降低。The plurality of LED light sources 92 of the above-mentioned conventional direct-lit backlight module 9 are arranged in an array, so it is easy to realize multi-zone independent brightness control, which means that local backlight adjustment and high dynamic range can be realized. (HDR) effect, but in order to make the light mixing uniform, the thickness of the diffusion plate 93 and the air layer L must be greatly increased, resulting in a relative increase in the overall thickness of the conventional direct-type backlight module 9, which is not conducive to The development of thin design. Furthermore, the excessive thickness of the diffuser plate 93 causes the luminance of the conventional direct-lit backlight module 9 to be greatly reduced, and the number of the LED light sources 92 cannot be reduced.
另一方面，相對於習知的側入式背光模組，由於為採用光源從側邊入光，以及使用導光板作為傳播光的載體，故可以實現超薄設計，但正是由於該側入式背光模組為採用側邊入光模式，因此，無法實現二維的亮度控制，具有無法實現多分區的局部背光調節效果的問題。有鑑於此，有必要提供一種拼接式導光板組合，以解決上述之問題。On the other hand, compared to the known side-input backlight module, because the light source is used to enter the light from the side, and the light guide plate is used as the carrier of light transmission, it can achieve an ultra-thin design, but precisely because of the side-input The type backlight module adopts the side light incident mode, therefore, two-dimensional brightness control cannot be realized, and there is a problem that the local backlight adjustment effect of multiple partitions cannot be realized. In view of this, it is necessary to provide a spliced light guide plate assembly to solve the above problems.
本發明的目的在於提供一種拼接式導光板組合，係可以將數個導光板透過拼接組合方式，使直下式背光模組轉變成側入式背光模組。The purpose of the present invention is to provide a spliced light guide plate combination, which can transform a direct-type backlight module into an edge-type backlight module by splicing and combining several light guide plates.
本發明的次一目的在於提供一種背光模組，係可以包含前述拼接式導光板組合。Another object of the present invention is to provide a backlight module, which can include the aforementioned spliced light guide plate assembly.
本發明的又一目的在於提供一種顯示裝置，係可以包含前述背光模組。Another object of the present invention is to provide a display device that can include the aforementioned backlight module.
為達成上述目的，本發明提供一種拼接式導光板組合，由數個導光板拼接而成，各該導光板具有呈圓弧狀的至少一入光面及一出光面，彼此相鄰的至少二導光板，以各自的入光面共同形成用以容納一發光元件的一容置空間。In order to achieve the above object, the present invention provides a spliced light guide plate combination, which is formed by splicing several light guide plates, each light guide plate has at least one light incident surface and one light exit surface in the shape of an arc, and at least two light guide plates adjacent to each other The light guide plate jointly forms an accommodating space for accommodating a light-emitting element with respective light-incident surfaces.
本發明次提供一種背光模組，包含：數個前述拼接式導光板組合，共同拼接形成一面發光本體，以界定出數個容置空間；及數個發光元件，分別設置於該數個容置空間中。The present invention provides a backlight module for the second time, comprising: a plurality of spliced light guide plate combinations as described above, which are spliced together to form a light-emitting body to define several accommodating spaces; in space.
本發明又提供一種顯示裝置，包含：前述背光模組；及一顯示面板，設置於該背光模組的前方。The present invention further provides a display device, comprising: the above-mentioned backlight module; and a display panel arranged in front of the backlight module.
在一些實施例中，該導光板的底面具有數個光學微結構。In some embodiments, the bottom surface of the light guide plate has several optical microstructures.
在一些實施例中，該導光板之中間區域的該些光學微結構的密度，是大於較鄰近該導光板之入光面的區域的該些光學微結構的密度。In some embodiments, the density of the optical microstructures in the middle region of the light guide plate is greater than the density of the optical microstructures in a region adjacent to the light incident surface of the light guide plate.
在一些實施例中，各該發光元件包含一發光二極體及包覆該發光二極體的一透明結構。In some embodiments, each of the light emitting elements includes a light emitting diode and a transparent structure covering the light emitting diode.
在一些實施例中，該透明結構的頂面形成一凹陷部，該發光二極體所發出的光線經由該凹陷部反射，使該光線由該透明結構的側向出光。In some embodiments, a concave portion is formed on the top surface of the transparent structure, and the light emitted by the LED is reflected through the concave portion, so that the light is emitted from the side of the transparent structure.
在一些實施例中，該發光元件另包含一反射結構，遮蔽該發光二極體的頂面，該發光二極體所發出的光線經由該反射結構反射，使該光線由該透明結構的側向出光。In some embodiments, the light-emitting element further includes a reflective structure, which covers the top surface of the light-emitting diode, and the light emitted by the light-emitting diode is reflected by the reflective structure, so that the light is reflected from the side of the transparent structure. sold out.
在一些實施例中，該發光元件具有數個發光面，該數個發光面的數量為N1，形成各該容置空間的該些導光板的入光面的數量為N2，其中，N1≦N2。In some embodiments, the light-emitting element has several light-emitting surfaces, the number of the several light-emitting surfaces is N1, and the number of light incident surfaces of the light guide plates forming each of the accommodating spaces is N2, wherein N1≦N2 .
在一些實施例中，本發明的背光模組，還可以另包含依序設置於該面發光本體前方的一下擴散片、一稜鏡片及一上擴散片。In some embodiments, the backlight module of the present invention may further include a lower diffuser, an upper diffuser and an upper diffuser sequentially arranged in front of the surface light-emitting body.
本發明的背光模組及顯示裝置具有下列特點：係可以採用包含數個拼接式導光板組合的發光本體，並於該數個拼接式導光板組合所界定出的數個容置空間中分別設置一發光元件。如此，將直下式背光模組轉換為側入式背光模組，使能夠在保有直下式LED區域點燈的特色下，降低背光模組的整體厚度，以及降低背光模組組裝難度，具有薄型化設計及提升產能的功效。再者，本發明的拼接式導光板組合，一方面可以實現多分區亮度的獨立控制，且與傳統的側入式背光模組相比，可用於局部背光調節和HDR效果的展現。另一方面，利用該數個導光板的出光均勻化效果，與傳統直下式背光模組相比，節省了混光空間，從而可實現超薄設計。The backlight module and display device of the present invention have the following characteristics: a light-emitting body comprising several spliced light guide plate combinations can be used, and it can be installed in several accommodation spaces defined by the several spliced light guide plate combinations. a light emitting element. In this way, converting the direct-type backlight module into a side-type backlight module can reduce the overall thickness of the backlight module and reduce the difficulty of assembling the backlight module while maintaining the characteristics of the direct-type LED area lighting. Design and enhance the efficiency of production capacity. Furthermore, the spliced light guide plate combination of the present invention can realize independent control of multi-zone brightness on the one hand, and compared with traditional side-type backlight modules, it can be used for local backlight adjustment and HDR effect display. On the other hand, compared with the conventional direct-type backlight module, by utilizing the light uniform effect of the several light guide plates, the space for light mixing is saved, so that an ultra-thin design can be realized.
茲配合圖式將本發明實施例詳細說明如下，其所附圖式主要為簡化之示意圖，僅以示意方式說明本發明之基本結構，因此在該等圖式中僅標示與本發明有關之元件，且所顯示之元件並非以實施時之數目、形狀、尺寸比例等加以繪製，其實際實施時之規格尺寸實為一種選擇性之設計，且其元件佈局形態有可能更為複雜。The embodiments of the present invention are described in detail below in conjunction with the drawings. The attached drawings are mainly simplified schematic diagrams, which only schematically illustrate the basic structure of the present invention. Therefore, only components related to the present invention are marked in these drawings. , and the displayed components are not drawn according to the number, shape, size ratio, etc. of the actual implementation. The actual size of the actual implementation is a selective design, and the layout of the components may be more complicated.
以下各實施例的說明是參考附加的圖式，用以例示本發明可據以實施的特定實施例。本發明所提到的方向用語，例如「上」、「下」、「前」、「後」等，僅是參考附加圖式的方向。因此，使用的方向用語是用以說明及理解本申請，而非用以限制本申請。另外，在說明書中，除非明確地描述為相反的，否則詞語“包含”將被理解為意指包含所述元件，但是不排除任何其它元件。The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention may be practiced. The direction terms mentioned in the present invention, such as "upper", "lower", "front", "rear", etc., are only directions referring to the attached drawings. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. Also, in the specification, unless it is clearly described to the contrary, the word "comprising" will be understood as meaning including the stated elements, but not excluding any other elements.
請參照圖2、3所示，其係本發明拼接式導光板組合1的一較佳實施例，該拼接式導光板組合1由數個導光板11拼接而成，各該導光板11具有至少一入光面111及一出光面112，該入光面111朝該導光板中心凹設成形，可以呈圓弧狀設計，該出光面112的幾何形狀可以為概呈正三角形、概呈正方形、概呈正五角形或概呈正六角形等態樣，但不以此為限。彼此相鄰的至少二導光板11，以各自的入光面111共同形成一容置空間S，該容置空間S用以容納一發光元件2。如此，習知直下式背光模組係可以藉由本發明拼接式導光板組合1轉換為側入式背光模組，使能夠在保有直下式LED區域點燈的特色下，降低背光模組的整體厚度，以及降低背光模組組裝難度，具有薄型化設計及提升產能的作用。Please refer to Figures 2 and 3, which are a preferred embodiment of the spliced light guide plate assembly 1 of the present invention. The spliced light guide plate assembly 1 is formed by splicing several light guide plates 11, and each light guide plate 11 has at least A light incident surface 111 and a light exit surface 112. The light incident surface 111 is concavely shaped towards the center of the light guide plate and can be designed in an arc shape. The geometric shape of the light exit surface 112 can be approximately equilateral triangle, approximately square, approximately A regular pentagon or roughly a regular hexagon, etc., but not limited thereto. At least two light guide plates 11 adjacent to each other form an accommodating space S with respective light incident surfaces 111 , and the accommodating space S is used for accommodating a light emitting element 2 . In this way, the conventional direct-type backlight module system can be converted into a side-type backlight module by using the spliced light guide plate assembly 1 of the present invention, so that the overall thickness of the backlight module can be reduced while maintaining the characteristics of direct-type LED area lighting , and reduce the difficulty of assembling the backlight module, which has the effect of thinning the design and increasing the production capacity.
本發明的主要設計架構，就是通過採用該拼接式導光板組合1的方式，一方面可以實現多分區亮度的獨立控制，且與傳統的側入式背光模組相比，可用於局部背光調節和高動態範圍效果的展現。另一方面，利用該數個導光板11的出光均勻化效果，與傳統直下式背光模組相比，節省了混光空間，從而可實現超薄設計。除此之外，還可以再搭配各該導光板11皆具有呈圓弧狀的入光面111，以進一步提高各該導光板11與該發光元件2之間的光耦合效率。再者，本發明之拼接式導光板組合1並無方向性，也可減少組裝困難。The main design framework of the present invention is that by adopting the spliced light guide plate combination 1, on the one hand, the independent control of multi-zone brightness can be realized, and compared with the traditional side-type backlight module, it can be used for local backlight adjustment and The display of high dynamic range effect. On the other hand, compared with the conventional direct-lit backlight module, by using the uniform light emission effect of the several light guide plates 11 , the light mixing space is saved, so that an ultra-thin design can be realized. In addition, each of the light guide plates 11 may also have an arc-shaped light incident surface 111 to further improve the light coupling efficiency between each of the light guide plates 11 and the light emitting element 2 . Furthermore, the spliced light guide plate assembly 1 of the present invention has no directionality, which can also reduce assembly difficulties.
具體而言，該導光板11的底面具有數個光學微結構113，在本實施例中，該導光板11之中間區域的該些光學微結構113的密度，是大於較鄰近該導光板11之入光面111的區域的該些光學微結構113的密度。如此，藉由該些光學微結構113愈遠離該入光面111的密度愈高，來讓更多的光線可以經由該些光學微結構113破壞全反射而向上出光，係可以使該導光板11的發光區域亮度較為平均，而不再集中於該導光板11之入光面111的區域。Specifically, the bottom surface of the light guide plate 11 has several optical microstructures 113. In this embodiment, the density of the optical microstructures 113 in the middle region of the light guide plate 11 is greater than that of the adjacent light guide plate 11. Density of the optical microstructures 113 in the region of the light incident surface 111 . In this way, the density of these optical microstructures 113 is higher the farther away from the light incident surface 111, so that more light can pass through these optical microstructures 113 to destroy the total reflection and go out upward, so that the light guide plate 11 can The luminance of the light-emitting area of the light-emitting area is relatively average, and is no longer concentrated in the area of the light-incident surface 111 of the light guide plate 11 .
請參照圖3所示，在本實施例中，各該發光元件2可以包含一發光二極體21及一透明結構22，其中，該透明結構22包覆該發光二極體21，該透明結構22的頂面形成一凹陷部23，該發光二極體21所發出的光線經由該凹陷部23反射，使該光線由該透明結構22的側向出光。舉例而言，各該透明結構22可以為一種二次光學透鏡（2 ndLens），以達到均勻出光的作用，但不以此為限。 Please refer to FIG. 3, in this embodiment, each of the light-emitting elements 2 may include a light-emitting diode 21 and a transparent structure 22, wherein the transparent structure 22 covers the light-emitting diode 21, and the transparent structure A concave portion 23 is formed on the top surface of the light emitting diode 22 , the light emitted by the LED 21 is reflected by the concave portion 23 , so that the light is emitted from the side of the transparent structure 22 . For example, each of the transparent structures 22 may be a secondary optical lens ( 2nd Lens) to achieve uniform light output, but not limited thereto.
請參照圖4所示，在另一實施例中，各該發光元件2可以包含該發光二極體21、該透明結構22及一反射結構24，其中，該透明結構22可以呈半球狀，並包覆該發光二極體21，該反射結構24遮蔽該發光二極體21的頂面，該發光二極體21所發出的光線經由該反射結構24反射，使該光線由該透明結構22的側向出光。Please refer to FIG. 4, in another embodiment, each of the light emitting elements 2 may include the light emitting diode 21, the transparent structure 22 and a reflective structure 24, wherein the transparent structure 22 may be hemispherical, and Covering the light emitting diode 21, the reflective structure 24 covers the top surface of the light emitting diode 21, the light emitted by the light emitting diode 21 is reflected by the reflective structure 24, so that the light is reflected by the transparent structure 22 Side light.
值得一提的是，該發光元件2可以具有數個發光面，該數個發光面的數量為N1，形成各該容置空間S的該些導光板11的入光面111的數量為N2，其中，N1≦N2。請參照圖5所示，舉例而言，當該導光板11的出光面112的幾何形狀概呈正三角形，並以6片導光板11拼成六邊形時，形成該容置空間S的入光面111的數量為六個，也就是N2=6，但是該發光元件2具有四個發光面，也就是N1=4。此時透過該透明結構22的設計，即可以讓該發光元件2的四個發光面，轉化為360度的出光，供該拼接式導光板組合1進行高效率的光耦合。It is worth mentioning that the light-emitting element 2 may have several light-emitting surfaces, the number of the several light-emitting surfaces is N1, and the number of light incident surfaces 111 of the light guide plates 11 forming each of the accommodating spaces S is N2, Among them, N1≦N2. Please refer to FIG. 5 , for example, when the geometric shape of the light-emitting surface 112 of the light guide plate 11 is roughly equilateral triangle, and when six light guide plates 11 are assembled into a hexagonal shape, the incident light of the accommodating space S is formed. The number of surfaces 111 is six, that is, N2=6, but the light emitting element 2 has four light emitting surfaces, that is, N1=4. At this time, through the design of the transparent structure 22 , the four light-emitting surfaces of the light-emitting element 2 can be converted into 360-degree light output for the spliced light guide plate assembly 1 to perform high-efficiency light coupling.
請參照圖2，本發明背光模組的一較佳實施例，係包含：數個前述拼接式導光板組合1，共同拼接形成一面發光本體P，以界定出數個容置空間S，以及數個發光元件2，該數個發光元件2分別設置於該數個容置空間S中，在本發明中，該面發光本體P的外觀態樣不加以限制。Please refer to Fig. 2, a preferred embodiment of the backlight module of the present invention includes: several spliced light guide plate assemblies 1 mentioned above, spliced together to form a light-emitting body P to define several accommodating spaces S, and several A plurality of light-emitting elements 2 are arranged in the plurality of accommodating spaces S respectively. In the present invention, the appearance of the surface light-emitting body P is not limited.
請參照圖6所示，本發明的背光模組還可以另包含依序設置於該面發光本體P前方的一下擴散片3、一稜鏡片4及一上擴散片5，意即，該下擴散片3設置於該面發光本體P前方，該稜鏡片4設置於該下擴散片3前方，該上擴散片5設置於該稜鏡片4前方，其中圖6只繪示該面發光本體P的其中一個拼接式導光板組合1，故不應以圖式揭露內容為限。Please refer to FIG. 6, the backlight module of the present invention may also further include a lower diffusion sheet 3, an upper diffusion sheet 4, and an upper diffusion sheet 5 arranged in sequence in front of the surface light-emitting body P, that is, the lower diffusion sheet The sheet 3 is arranged in front of the surface light-emitting body P, the diffuser sheet 4 is arranged in front of the lower diffusion sheet 3, and the upper diffusion sheet 5 is arranged in front of the diffuser sheet 4, wherein Fig. 6 only shows the area of the surface light-emitting body P. A spliced light guide plate assembly 1, so the disclosure should not be limited by the diagram.
請續參照圖6所示，其係本發明顯示裝置的一較佳實施例，係包含前述背光模組，及一顯示面板6，該顯示面板6設置於該背光模組的前方。Please continue referring to FIG. 6 , which is a preferred embodiment of the display device of the present invention, which includes the aforementioned backlight module and a display panel 6 , which is arranged in front of the backlight module.
承上所述，本發明的背光模組及顯示裝置，係可以採用包含數個拼接式導光板組合的發光本體，並於該數個拼接式導光板組合所界定出的數個容置空間中分別設置一發光元件。如此，將直下式背光模組轉換為側入式背光模組，使能夠在保有直下式LED區域點燈的特色下，降低背光模組的整體厚度，以及降低背光模組組裝難度，具有薄型化設計及提升產能的功效。再者，本發明的拼接式導光板組合，一方面可以實現多分區亮度的獨立控制，且與傳統的側入式背光模組相比，可用於局部背光調節和HDR效果的展現。另一方面，利用該數個導光板的出光均勻化效果，與傳統直下式背光模組相比，節省了混光空間，從而可實現超薄設計。Based on the above, the backlight module and the display device of the present invention can adopt a light-emitting body comprising several combinations of spliced light guide plates, and in several accommodating spaces defined by the combinations of spliced light guide plates A light emitting element is provided respectively. In this way, converting the direct-type backlight module into a side-type backlight module can reduce the overall thickness of the backlight module and reduce the difficulty of assembling the backlight module while maintaining the characteristics of the direct-type LED area lighting. Design and enhance the efficiency of production capacity. Furthermore, the spliced light guide plate combination of the present invention can realize independent control of multi-zone brightness on the one hand, and compared with traditional side-type backlight modules, it can be used for local backlight adjustment and HDR effect display. On the other hand, compared with the conventional direct-type backlight module, by utilizing the light uniform effect of the several light guide plates, the space for light mixing is saved, so that an ultra-thin design can be realized.
上述揭示的實施形態僅例示性說明本發明之原理、特點及其功效，並非用以限制本發明之可實施範疇，任何熟習此項技藝之人士均可在不違背本發明之精神及範疇下，對上述實施形態進行修飾與改變。任何運用本發明所揭示內容而完成之等效改變及修飾，均仍應為下述之申請專利範圍所涵蓋。The embodiments disclosed above are only illustrative of the principles, features and effects of the present invention, and are not intended to limit the scope of the present invention. Any person familiar with the art can, without departing from the spirit and scope of the present invention, Modifications and changes are made to the above-mentioned embodiments. Any equivalent change and modification accomplished by using the content disclosed in the present invention should still be covered by the scope of the following patent application.
﹝本發明﹞ 1:拼接式導光板組合 11:導光板 111:入光面 112:出光面 113:光學微結構 2:發光元件 21:發光二極體 22:透明結構 23:凹陷部 24:反射結構 3:下擴散片 4:稜鏡片 5:上擴散片 6:顯示面板 P:發光本體 S:容置空間 ﹝習用﹞ 9:直下式背光模組 91:框架 92:LED光源 93:擴散板 94:稜鏡片 95:擴散片 L:空氣層 ﹝this invention﹞ 1: Splicing light guide plate combination 11: Light guide plate 111: light incident surface 112: light emitting surface 113:Optical microstructure 2: Light emitting element 21: Light emitting diode 22: Transparent structure 23: Depressed part 24: Reflective structure 3: Lower diffuser 4: Flakes 5: Upper diffuser 6: Display panel P: Luminous body S: storage space ﹝used to use﹞ 9: Direct type backlight module 91: frame 92: LED light source 93: Diffusion plate 94: 稜鏡 slices 95: Diffuser L: air layer
[圖1]為一種習知直下式背光模組的分解圖； [圖2]為本發明之拼接式導光板組合的立體組合圖； [圖3]為圖2中A部分所示的局部構造放大圖； [圖4]為本發明之背光模組的發光元件的側視剖面圖； [圖5]為圖2中B部分所示的局部構造放大圖； [圖6]為本發明之顯示裝置的的側視剖視圖。 [Fig. 1] is an exploded view of a conventional direct type backlight module; [Fig. 2] is a three-dimensional combination diagram of the spliced light guide plate combination of the present invention; [Fig. 3] is an enlarged view of the local structure shown in part A in Fig. 2; [Fig. 4] is a side sectional view of the light-emitting element of the backlight module of the present invention; [Fig. 5] is an enlarged view of the local structure shown in part B in Fig. 2; [ Fig. 6 ] is a side sectional view of a display device of the present invention.
1:拼接式導光板組合 1: Splicing light guide plate combination
11:導光板 11: Light guide plate
111:入光面 111: light incident surface
112:出光面 112: light emitting surface
P:發光本體 P: Luminous body
S:容置空間 S: storage space
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| CN (2) | CN116266004A (en) |
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| CN116434651B (en) * | 2023-04-27 | 2024-04-26 | 惠科股份有限公司 | Backlight module and display device |
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| CN201149203Y (en) * | 2007-07-19 | 2008-11-12 | 亿光电子工业股份有限公司 | Side-emitting light-emitting diode |
| US20110058124A1 (en) * | 2009-09-09 | 2011-03-10 | Entire Technology Co., Ltd. | Composite optical device and monitor |
| CN103162192B (en) * | 2013-03-18 | 2016-03-02 | 晶科电子（广州）有限公司 | A kind of down straight aphototropism mode set |
| WO2017106124A2 (en) * | 2015-12-16 | 2017-06-22 | Corning Incorporated | Light guide plates and display devices comprising the same |
| CN106773315B (en) * | 2017-01-13 | 2020-05-19 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
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