TWI677996B - Quantum structure light emitting module - Google Patents
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- 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
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- G—PHYSICS
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- 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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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Abstract
一種量子結構發光模組，包含一量子結構薄膜，及一發光單元。該量子結構薄膜包括間隔的一第一基材與一第二基材，及一位於該第一基材與該第二基材間並包括數個量子結構的激發層。該發光單元包括一用於發出藍光且能激發該等量子結構產生綠光的第一發光件，及一用於發出紅光的第二發光件。所述紅光、藍光與綠光混光形成白光並由該第二基材射出。本發明能提升紅光成分強度，從而可提升顯示器色域廣度，使色彩飽和。也因為本發明只有綠光是透過光激發該等量子結構而產生，紅光則非以此方式產生，因而能減少量子結構的用量，以減少使用鎘材料。A quantum structure light emitting module includes a quantum structure film and a light emitting unit. The quantum structure thin film includes a first substrate and a second substrate spaced apart, and an excitation layer located between the first substrate and the second substrate and including a plurality of quantum structures. The light-emitting unit includes a first light-emitting element for emitting blue light and capable of exciting the quantum structures to generate green light, and a second light-emitting element for emitting red light. The red light, blue light, and green light are mixed to form white light and emitted from the second substrate. The invention can increase the intensity of the red light component, thereby improving the width of the color gamut of the display and saturating the colors. Because the present invention only generates green light through the excitation of these quantum structures through light, red light is not generated in this way, so the amount of quantum structure can be reduced to reduce the use of cadmium materials.
Description
本發明是有關於一種發光模組，特別是指一種含有能受到光激發而發光的量子結構薄膜的發光模組。The invention relates to a light-emitting module, in particular to a light-emitting module containing a quantum structure film capable of being excited by light to emit light.
已知發光二極體(light emitting diode，LED)發光裝置產生白光的其中一種方式，是利用含有量子點(quantum dots)的薄膜作為發光二極體的發光層，藉由不同材料或粒徑的量子點受到激發光源照射，發出不同於激發光源之波長的二次光線後混光而得。舉例來說，可利用藍光LED作為激發光源，並激發不同粒徑的量子點材料以產生紅光及綠光，便可將紅光、綠光及藍光以混光的方式形成白光。One of the known methods for generating white light from light emitting diode (LED) light emitting devices is to use a film containing quantum dots as the light emitting layer of the light emitting diode. The quantum dots are irradiated by an excitation light source, and are obtained by mixing light after emitting secondary light having a wavelength different from that of the excitation light source. For example, a blue LED can be used as an excitation light source, and quantum dot materials with different particle sizes can be excited to generate red and green light. Red, green, and blue light can be mixed to form white light.
上述包含有量子點光學薄膜的發光裝置，可應用於顯示器的背光模組，相較於傳統的背光模組，含有量子點光學薄膜的背光模組，可提供顯示器更加豐富的色階與彩度，色域(color gamut)廣、色彩的表現豐富且更為真實，使顯示器呈現色彩飽和、鮮豔之高品質畫質。The above-mentioned light-emitting device including a quantum dot optical film can be applied to a backlight module of a display. Compared with a conventional backlight module, a backlight module containing a quantum dot optical film can provide a display with richer color levels and chroma. , The color gamut is wide, the color expression is rich and more real, so that the display presents high-quality picture quality with saturated colors and vivid colors.
其中，含鎘的半導體材料為常見的量子點材料，例如CdS、CdSe、CdTe等等，但由於鎘金屬具有毒性，因此有必要減少鎘的用量。而目前也有量子點材料使用CsPbX3 ，X為氯、溴、碘或上述的任一組合，透過調整氯、溴、碘的比例與量子點尺寸，可以改變量子點受激發光的顏色，其中一種作法是採用藍光LED激發CsPbX3 量子點，以得到紅光與綠光，然而於實務上發現，此種方式得到的紅光不足，影響顯示器成色效果，其色彩表現不如使用含鎘量子點材料的顯示器，因此，在減少鎘用量的同時，也要考量如何兼顧色彩表現、成像需求。Among them, cadmium-containing semiconductor materials are common quantum dot materials, such as CdS, CdSe, CdTe, etc., but because cadmium metal is toxic, it is necessary to reduce the amount of cadmium. At present, there are also quantum dot materials using CsPbX 3 , where X is chlorine, bromine, iodine, or any combination of the above. By adjusting the proportion of chlorine, bromine, and iodine and the size of the quantum dots, the color of the excited light of the quantum dots can be changed. The method is to use blue LEDs to excite CsPbX 3 quantum dots to obtain red and green light. However, it is found in practice that the red light obtained in this way is insufficient and affects the display color. The color performance is not as good as that of using cadmium-containing quantum dot materials. Display, therefore, while reducing the amount of cadmium, we must also consider how to balance color performance and imaging needs.
因此，本發明之目的，即在提供一種能減少鎘用量，並能提升顯示器色域廣度與色彩豐富性的量子結構發光模組。Therefore, the object of the present invention is to provide a quantum structure light emitting module capable of reducing the amount of cadmium and improving the display color gamut breadth and color richness.
於是，本發明量子結構發光模組，包含一個量子結構薄膜，及一個發光單元。Therefore, the quantum structure light emitting module of the present invention includes a quantum structure film and a light emitting unit.
該量子結構薄膜包括一個第一基材、一個第二基材，及一個激發層。該第一基材包括相反的一個第一面與一個入光面。該第二基材與該第一基材間隔相對，並包括一個朝向該第一面的第二面，以及一個相反於該第二面的出光面。該激發層位於該第一基材的該第一面與該第二基材的該第二面之間，該激發層包括數個量子結構，所述量子結構為量子點或量子棒。The quantum structure film includes a first substrate, a second substrate, and an excitation layer. The first substrate includes an opposite first surface and a light incident surface. The second substrate is spaced apart from the first substrate and includes a second surface facing the first surface and a light emitting surface opposite to the second surface. The excitation layer is located between the first surface of the first substrate and the second surface of the second substrate. The excitation layer includes several quantum structures, and the quantum structures are quantum dots or quantum rods.
該發光單元位於該量子結構薄膜一側，並包括一個用於發出藍光的第一發光件，及一個用於發出紅光的第二發光件。該發光單元發出的紅光與藍光能通過該第一基材並進入該激發層，且藍光激發該激發層的該等量子結構發出綠光，該紅光、藍光與綠光混光後由該第二基材的該出光面射出。The light emitting unit is located on one side of the quantum structure film and includes a first light emitting element for emitting blue light and a second light emitting element for emitting red light. The red light and blue light emitted by the light-emitting unit can pass through the first substrate and enter the excitation layer, and the blue light excites the quantum structures of the excitation layer to emit green light, and the red light, blue light, and green light are mixed by the light. The light emitting surface of the second substrate is emitted.
本發明之功效在於：藉由該第一發光件發出藍光來激發該等量子結構產生綠光，並搭配該等第二發光件發出紅光，取代以往利用光激發光方式產生紅光，因此本發明能提升紅光成分強度，從而可提升顯示器色域廣度，使色彩飽和、鮮豔，並可提升混合光線亮度。也因為本發明僅有綠光是透過光激發該等量子結構而產生，紅光並非以此方式產生，因而能減少量子結構的用量，以減少量子結構所使用到的鎘材料，或者可選擇不使用鎘材料，故本發明具有減少鎘用量的優點。The effect of the present invention is that the first light-emitting element emits blue light to excite the quantum structures to generate green light, and the second light-emitting element emits red light in combination with the second light-emitting element. The invention can increase the intensity of the red light component, thereby improving the width of the color gamut of the display, making the colors saturated and vivid, and increasing the brightness of the mixed light. Because the present invention only generates green light through light to excite these quantum structures, red light is not generated in this way, so the amount of quantum structure can be reduced, the cadmium material used in the quantum structure can be reduced, or The cadmium material is used, so the present invention has the advantage of reducing the amount of cadmium.
在本發明被詳細描述之前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.
參閱圖1，本發明量子結構發光模組之一第一實施例，包含一個量子結構薄膜10，以及一個發光單元4。Referring to FIG. 1, a first embodiment of a quantum structure light emitting module according to the present invention includes a quantum structure film 10 and a light emitting unit 4.
該量子結構薄膜10包括上下層疊的一個第一基材1、一個第二基材2、與一個激發層3。該第一基材1包括相反的一個第一面11與一個入光面12。該第二基材2與該第一基材1間隔相對，並包括一個朝向該第一面11的第二面21，以及一個相反於該第二面21的出光面22。該第一基材1與該第二基材2的材料可以為聚對苯二甲酸乙二酯(polyethylene terephthalate，PET)、環狀烯烴共聚高分子(cyclo olefin (co)-polymers，COC)、聚亞醯胺(polyimide，PI)、聚醚碸樹脂(polyestersulfone，PES)、聚萘二甲酸乙二醇酯(polyethylene naphthalate，PEN)、聚碳酸酯(polycarbonate，PC)，或前述材料的任一組合。該第一基材1與該第二基材2表面可形成有能阻隔水氣進入的阻水膜，藉此能避免水氣影響該激發層3。The quantum structure thin film 10 includes a first substrate 1, a second substrate 2, and an excitation layer 3 stacked on top of each other. The first substrate 1 includes a first surface 11 and a light incident surface 12 opposite to each other. The second substrate 2 is opposite to the first substrate 1 and includes a second surface 21 facing the first surface 11 and a light emitting surface 22 opposite to the second surface 21. The materials of the first substrate 1 and the second substrate 2 may be polyethylene terephthalate (PET), cyclo olefin (co) -polymers (COC), Polyimide (PI), Polyestersulfone (PES), Polyethylene naphthalate (PEN), Polycarbonate (PC), or any of the foregoing materials combination. A water blocking film can be formed on the surfaces of the first substrate 1 and the second substrate 2 to prevent water and gas from entering, thereby preventing water and gas from affecting the excitation layer 3.
該激發層3位於該第一基材1的該第一面11與該第二基材2的該第二面21之間，並包括數個量子結構31，能受到藍光激發而產生綠光。所述量子結構31為量子點(Quantum Dot)或量子棒(Quantum Rod)，當使用量子點時，其尺寸較佳地為9nm~13nm，在此範圍下，該等量子點受到激發所產生的綠光，可較接近純綠，能提升顯示器色域廣度。該等量子結構31的材料可以包含CsPbBr3 或CH3 NH3 PbBr3 ，上述材料為不含有鎘(Cd)的鈣鈦礦材料，於量子點或量子棒上有良好應用。另外，該等量子結構31材料也可以選用含有Cd的材料，例如包含CdS、CdSe，或CdTe，應用上述含Cd材料之顯示器的成色效果佳。The excitation layer 3 is located between the first surface 11 of the first substrate 1 and the second surface 21 of the second substrate 2, and includes a plurality of quantum structures 31, which can be excited by blue light to generate green light. The quantum structure 31 is a quantum dot (Quantum Dot) or a quantum rod (Quantum Rod). When a quantum dot is used, its size is preferably 9 nm to 13 nm. In this range, the quantum dots are generated by being excited. Green light, which can be closer to pure green, can improve the color gamut of the display. The materials of the quantum structures 31 may include CsPbBr 3 or CH 3 NH 3 PbBr 3. The above materials are perovskite materials that do not contain cadmium (Cd), and have good applications in quantum dots or quantum rods. In addition, the materials of the quantum structure 31 may also be selected from materials containing Cd, such as CdS, CdSe, or CdTe. The display using the above-mentioned Cd-containing material has a good color formation effect.
形成該激發層3時，主要是將量子結構31材料浸泡於一油酸溶液與一油胺溶液中，藉由控制浸泡時間、溶液濃度等參數，可以調配出所需尺寸的量子結構31，而且油酸與油胺為混合穩定劑，使量子結構31具有良好的光穩定性。接著將量子結構31分散於一膠態系統中，該膠態系統的材料為可透光的樹脂，並具有光均勻效果，再利用塗佈方式塗佈於該第一基材1的該第一面11或該第二基材2的該第二面21，形成一膠膜，接續可視該等量子結構31的材料選擇是否進行退火，而可得到該激發層3，其中退火用於改變量子結構31能階以及減少晶體缺陷，提升發光效率。When the excitation layer 3 is formed, the quantum structure 31 material is mainly immersed in an oleic acid solution and an oleylamine solution. By controlling the parameters such as the immersion time and the solution concentration, the quantum structure 31 of a desired size can be adjusted, and Oleic acid and oleylamine are mixed stabilizers, so that the quantum structure 31 has good light stability. The quantum structure 31 is then dispersed in a colloidal system. The material of the colloidal system is a resin that can transmit light and has a uniform light effect, and is then applied to the first substrate 1 by a coating method. An adhesive film is formed on the surface 11 or the second surface 21 of the second base material 2, and then depending on whether the materials of the quantum structures 31 are selected for annealing, the excitation layer 3 can be obtained, and the annealing is used to change the quantum structure. 31 level and reduce crystal defects, improve luminous efficiency.
該發光單元4朝向該第一基材1的該入光面12，並包括一個電路基板43，以及位於該電路基板43上且間隔交錯排列的數個第一發光件41與數個第二發光件42。該等第一發光件41用於發出藍光，例如藍光發光二極體(LED)，該等第二發光件42用於發出紅光，例如紅光發光二極體。本實施例的第二發光件42採用的紅光LED，其中含有氟矽酸鉀與四價錳離子(K2 SiF6 :Mn4+ )之螢光粉，為一種氟化物螢光粉，可簡稱為KSF螢光粉，含有此種螢光粉的LED可簡稱為KSF LED。KSF螢光粉之優點在於發射光譜的半波寬窄、能量高，應用於顯示器能提升色域覆蓋率。The light-emitting unit 4 faces the light-incident surface 12 of the first substrate 1 and includes a circuit substrate 43 and a plurality of first light-emitting elements 41 and a plurality of second light-emitting elements located on the circuit substrate 43 and spaced alternately. Piece 42. The first light emitting elements 41 are used to emit blue light, such as a blue light emitting diode (LED), and the second light emitting elements 42 are used to emit red light, such as a red light emitting diode. The red LED used in the second light-emitting element 42 of this embodiment contains a phosphor powder of potassium fluorosilicate and tetravalent manganese ions (K 2 SiF 6 : Mn 4+ ), which is a kind of fluoride phosphor powder. It is referred to as KSF phosphor for short, and LEDs containing such phosphor may be referred to as KSF LED for short. The advantages of KSF phosphors are the narrow half-wave width and high energy of the emission spectrum, which can improve the color gamut coverage when used in displays.
本發明使用時，該等第一發光件41發出的藍光與該等第二發光件42發出的紅光，能自該第一基材1的該入光面12進入該激發層3，且藍光激發該激發層3的該等量子結構31發出綠光，入射的紅光、藍光與被激發出的綠光混光後而產生白光，並由該第二基材2的該出光面22射出。該等量子結構31受到激發而發出的綠光的中心波長較佳地為520nm ~540nm。本發明可應用於顯示器中作為背光模組，並置於該顯示器的一面板模組(圖未示)一側，且該出光面22朝向該面板模組，使混光光線可通過該出光面22射向該面板模組。When the present invention is used, the blue light emitted by the first light-emitting elements 41 and the red light emitted by the second light-emitting elements 42 can enter the excitation layer 3 from the light incident surface 12 of the first substrate 1 and the blue light The quantum structures 31 that excite the excitation layer 3 emit green light, and incident red light, blue light, and mixed green light are mixed to generate white light, and are emitted from the light emitting surface 22 of the second substrate 2. The center wavelength of the green light emitted by the quantum structures 31 is preferably 520 nm to 540 nm. The invention can be applied to a display as a backlight module and placed on a panel module (not shown) side of the display, and the light emitting surface 22 faces the panel module, so that mixed light can pass through the light emitting surface 22 Shoot at the panel module.
綜上所述，藉由該第一發光件41發出藍光來激發該等量子結構31產生綠光，並搭配該等第二發光件42能主動發出紅光，取代以往利用光激發光方式產生紅光，本發明能提升紅光成分強度，從而可提升色域廣度，使色彩飽和，並可提升混合光線亮度。因此本發明應用於顯示器中，能使顯示器色彩飽和、豐富，接近真實人物、物體之顏色，能實現更高品質的色彩效果。進一步地，當第二發光件42採用KSF LED時，使本發明提升色域廣度、色彩飽和的效果更佳。也因為本發明僅有綠光是透過光激發該等量子結構31而產生，紅光則非以此方式產生，因此本發明相對於以往紅光與綠光皆由激發量子點而產生的產品而言，本發明能減少量子結構31的用量，如此一來，即使選用的量子結構31含有鎘，仍能減少量子結構31整體所使用到的鎘材料，或者也可以選擇不含有鎘的材料，故本發明確實能減少鎘用量。In summary, the first light-emitting element 41 emits blue light to excite the quantum structures 31 to produce green light, and the second light-emitting element 42 can actively emit red light in combination with the second light-emitting element 42 instead of using the light excitation light to generate red light in the past. Light, the invention can increase the intensity of the red light component, thereby improving the breadth of the color gamut, saturating the colors, and increasing the brightness of the mixed light. Therefore, the present invention is applied to a display, which can saturate and enrich the color of the display, close to the colors of real people and objects, and achieve higher-quality color effects. Further, when the second light-emitting element 42 is a KSF LED, the effect of improving the color gamut width and color saturation of the present invention is better. Also, because the present invention only generates green light through the excitation of the quantum structures 31 through light, red light is not generated in this way. Therefore, the present invention is relative to products in which both red and green light are generated by exciting quantum dots. In other words, the present invention can reduce the amount of quantum structure 31. In this way, even if the selected quantum structure 31 contains cadmium, the cadmium material used in the entire quantum structure 31 can be reduced, or a material containing no cadmium can be selected. The invention can indeed reduce the amount of cadmium used.
參閱圖2，本發明量子結構發光模組之一第二實施例，與該第一實施例的結構大致相同，不同處在於：本實施例的該第一基材1還包括數個位於該入光面12的第一微結構13。該第二基材2還包括數個位於該出光面22的第二微結構23。該等第一微結構13與該等第二微結構23具有光擴散、均光效果，材料可以為聚甲基丙烯酸甲酯(壓克力)、聚氨酯(polyurethane，PU)、矽氧樹脂(silicone)，或上述材料的任一組合。該等第一微結構13的形狀可為相同或不同，第二微結構23的形狀也可為相同或不同，形狀可為錐形、半圓形、正六角形、不規則的凹凸結構等等。藉由該等第一微結構13能使該發光單元4發出的光線產生折射，以增加藍光在該量子結構薄膜10中的光路徑，能激發更多的該等量子結構31，有效提升綠光的轉換效率，產生更多綠光，應用於顯示器可達到廣色域、色彩飽和、鮮豔的效果。此外，於該第二基材2設置該等第二微結構23，能有效降低由該出光面22表面出光產生的全反射現象，從而能提升整體光萃取率。Referring to FIG. 2, a second embodiment of a quantum structure light emitting module according to the present invention is substantially the same as the structure of the first embodiment, except that the first substrate 1 of this embodiment further includes a plurality of The first microstructure 13 of the light surface 12. The second substrate 2 further includes a plurality of second microstructures 23 located on the light emitting surface 22. The first microstructures 13 and the second microstructures 23 have a light diffusing and homogenizing effect. The materials may be polymethyl methacrylate (acrylic), polyurethane (PU), or silicone. ), Or any combination of the above. The shapes of the first microstructures 13 may be the same or different, and the shapes of the second microstructures 23 may also be the same or different. The shape may be a cone, a semicircle, a regular hexagon, an irregular concave-convex structure, and the like. The first microstructures 13 can refract the light emitted by the light-emitting unit 4 to increase the light path of blue light in the quantum structure film 10, can excite more of these quantum structures 31, and effectively improve green light. Conversion efficiency, producing more green light, applied to the display can achieve wide color gamut, color saturation, vivid effects. In addition, disposing the second microstructures 23 on the second substrate 2 can effectively reduce the total reflection phenomenon caused by the light emitted from the surface of the light emitting surface 22, thereby improving the overall light extraction rate.
上述第一實施例與第二實施例的發光單元4直接朝向該第一基材1的該入光面12，為一種直下式發光模組，而本發明實施時，也可以設計成側光式發光模組，詳如以下實施例所述。The light emitting unit 4 of the first embodiment and the second embodiment directly faces the light incident surface 12 of the first substrate 1 and is a direct-type light-emitting module. When the present invention is implemented, it can also be designed as an edge-light The light emitting module is described in detail in the following embodiments.
參閱圖3、4，本發明量子結構發光模組之一第三實施例，與該第一實施例的結構大致相同，不同處在於：本實施例的發光模組為一個側光式發光模組，並且還包含一個位於該第一基材1的該入光面12一側的導光板5。該導光板5包括一個朝向該入光面12的導光出光面51、一個與該導光出光面51間隔相對的導光反射面52，以及一個連接於該導光出光面51與該導光反射面52側緣的導光入光面53。該導光反射面52具有網點陣列結構，進而具有反射光線功能。Referring to Figs. 3 and 4, a third embodiment of a quantum structure light emitting module according to the present invention has substantially the same structure as the first embodiment, except that the light emitting module of this embodiment is an edge-lit light emitting module. And further includes a light guide plate 5 on the light incident surface 12 side of the first substrate 1. The light guide plate 5 includes a light guide light exit surface 51 facing the light incident surface 12, a light guide reflection surface 52 spaced apart from the light guide light exit surface 51, and a light guide light exit surface 51 and the light guide. The light guide incident surface 53 on the side edge of the reflecting surface 52. The light guide reflection surface 52 has a halftone dot array structure, and further has a function of reflecting light.
本實施例的發光單元4朝向該導光入光面53，且該等第一發光件41與第二發光件42沿該導光入光面53的延伸方向交錯排列。該發光單元4的光線(藍光與紅光)會經由該導光入光面53進入該導光板5內，並受到該導光反射面52朝該導光出光面51反射，接著光線再通過該第一基材1的該入光面12後，進入該第一基材1。因此，該發光單元4的藍光與紅光同樣可通過該第一基材1，且藍光將該激發層3激發出綠光，最後各色光混成白光並由該第二基材2的出光面22射出。The light-emitting units 4 of this embodiment face the light-guiding light-entering surface 53, and the first light-emitting elements 41 and the second light-emitting elements 42 are staggered along the extending direction of the light-guiding light-entering surface 53. The light (blue light and red light) of the light emitting unit 4 enters the light guide plate 5 through the light guide incident surface 53 and is reflected by the light guide reflective surface 52 toward the light guide light exit surface 51, and then the light passes through the light guide After the light incident surface 12 of the first substrate 1 enters the first substrate 1. Therefore, the blue light and the red light of the light-emitting unit 4 can pass through the first substrate 1 as well, and the blue light excites the excitation layer 3 into green light, and finally each color light is mixed into white light and emitted from the light emitting surface 22 of the second substrate 2 Shoot out.
惟以上所述者，僅為本發明之實施例而已，當不能以此限定本發明實施之範圍，凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.
10‧‧‧量子結構薄膜 10‧‧‧ Quantum Structure Film
1‧‧‧第一基材1‧‧‧ the first substrate
11‧‧‧第一面11‧‧‧ the first side
12‧‧‧入光面12‧‧‧Into the light surface
13‧‧‧第一微結構13‧‧‧ the first microstructure
2‧‧‧第二基材2‧‧‧ second substrate
21‧‧‧第二面21‧‧‧Second Side
22‧‧‧出光面22‧‧‧ light surface
23‧‧‧第二微結構23‧‧‧Second microstructure
3‧‧‧激發層3‧‧‧ excitation layer
31‧‧‧量子結構31‧‧‧ Quantum Structure
4‧‧‧發光單元4‧‧‧light-emitting unit
41‧‧‧第一發光件41‧‧‧The first luminous part
42‧‧‧第二發光件42‧‧‧Second luminous element
43‧‧‧電路基板43‧‧‧circuit board
5‧‧‧導光板5‧‧‧light guide
51‧‧‧導光出光面51‧‧‧light guide light exit surface
52‧‧‧導光反射面52‧‧‧light guide reflective surface
53‧‧‧導光入光面 53‧‧‧light guide light incident surface
本發明之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是一不完整的剖視示意圖，說明本發明量子結構發光模組的一第一實施例； 圖2是一不完整的剖視示意圖，說明本發明量子結構發光模組的一第二實施例； 圖3是一不完整的剖視示意圖，說明本發明量子結構發光模組的一第三實施例；及 圖4是一俯視示意圖，說明該第三實施例的一導光板與一發光單元的相對關係。Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is an incomplete cross-sectional schematic diagram illustrating a first embodiment of the quantum structure light emitting module of the present invention; FIG. 2 is an incomplete cross-sectional schematic diagram illustrating a second embodiment of the quantum structure light emitting module of the present invention; FIG. 3 is an incomplete cross-sectional schematic diagram illustrating a third embodiment of the quantum structure light-emitting module of the present invention 4; and FIG. 4 is a schematic plan view illustrating the relative relationship between a light guide plate and a light emitting unit in the third embodiment.
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| TW201413348A (en) * | 2012-09-24 | 2014-04-01 | Au Optronics Corp | Direct-type backlight module and diffuser structure |
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| TW201413348A (en) * | 2012-09-24 | 2014-04-01 | Au Optronics Corp | Direct-type backlight module and diffuser structure |
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