TW201740170A - Light guide plates and display devices comprising the same - Google Patents

Abstract

Disclosed herein are lighting devices comprising a light guide plate comprising a first edge and a first major surface comprising a plurality of light extraction features; at least one light source coupled to the first edge; and at least one edge reflector disposed along at least a portion of an edge of the light guide plate. Lighting devices comprising a plurality of light guide plates are also disclosed herein. Display devices comprising such lighting devices are further disclosed.

Description

光導板及包含其的顯示裝置Light guide plate and display device therewith

本申請根據專利法要求於2015年12月16日遞交的美國臨時專利申請案第62/268173號的優先權，以其內容為依據並且透過引用以整體納入本文。The priority of U.S. Provisional Patent Application Serial No. 62/268,173, filed on Dec.

本揭露大體涉及光導板和包含該光導板的顯示裝置，更具體地涉及產生實質上均勻光輸出強度的光導板和裝置。The present disclosure generally relates to a light guide panel and a display device including the same, and more particularly to a light guide panel and apparatus that produces substantially uniform light output intensity.

液晶顯示屏（LCD）通常用於各種電子設備中，例如行動電話、膝上型電腦、平板電腦、電視和電腦監視器。然而，與其他顯示裝置在明亮度、對比度、效率和觀看視角上比較，LCD是有限的。例如，爲了與其他顯示技術競爭，對傳統的LCD而言，持續需要較高的對比度、色域和明亮度，同時還需要保持功率需求和裝置尺寸（例如，厚度）之間的平衡。Liquid crystal displays (LCDs) are commonly used in a variety of electronic devices, such as mobile phones, laptops, tablets, televisions, and computer monitors. However, LCDs are limited in comparison to other display devices in terms of brightness, contrast, efficiency, and viewing angle. For example, in order to compete with other display technologies, higher contrast, color gamut, and brightness are continually required for conventional LCDs while maintaining a balance between power requirements and device size (eg, thickness).

LCD可以包含用於產生光線的背光單元（BLU），該光線隨後可以經轉換、過濾和/或偏極，以產生所需圖像。BLU可以是側光式，例如，包含與光導板（LGP）邊緣耦接的光源，或可以是背光式，例如，包含設置在LCD面板后的光源二維陣列。與側光式BLU相比，直下式BLU可以具有改良的對比度的優勢。例如，爲了產生圖像的陰影區域，可以關閉直下式BLU中的各種光源，以提供局部調光。然而，爲了實現所需的均勻光線和/或爲了避免直下式BLU有熱點，光源可以在離LGP一定距離處定位，從而使整體顯示厚度大於側光式BLU的整體顯示厚度。The LCD can include a backlight unit (BLU) for generating light that can then be converted, filtered, and/or polarized to produce the desired image. The BLU can be edge-lit, for example, including a light source coupled to a light guide plate (LGP) edge, or can be backlit, for example, including a two-dimensional array of light sources disposed behind the LCD panel. The direct-lit BLU can have the advantage of improved contrast compared to the edge-lit BLU. For example, to create a shaded area of the image, various light sources in the direct-lit BLU can be turned off to provide local dimming. However, in order to achieve the desired uniform light and/or to avoid hot spots in the direct BLU, the light source can be positioned at a distance from the LGP such that the overall display thickness is greater than the overall display thickness of the edge-lit BLU.

習知的側光式LCD一般使用LGP將LCD陣列背後的光線以均勻的強度分配在整個面板的表面。在此類顯示器中，LED光線從LGP（耦接邊緣）的至少一個邊緣耦接進LGP中，且光線隨著其擴散而由LGP上的擴散結構提取，該擴散結構一般是白漆或表面分散部件。側光式LGP展現了優於直接照射的優勢，其中，使用LED方陣直接照射面板，這是由於該面板可以製作得極其薄。然而，直接照射優於側光式顯示器的一個優勢在於：可以單獨驅動陣列中的每個單個LED，以便可以透過使一些LED的區域變暗的方式，使用較少的光線，照亮較暗區域，使其成像。這樣就稱作「局部調光」，既節省了能量消耗，又提高了圖像對比度，尤其是圖片黑色區域中的對比度。儘管局部調光亦在側光式LGP中引用了，但由於單個LED發射的光在隨著光線擴散時快速擴展到LGP中，造成像素中出現較少的差異，所以這使得效率相對較低，且圖像對比效果較低。簡單地說，目前局部調光的方法無法滿足顯示器行業內製造商和顧客的需要。Conventional edge-lit LCDs typically use LGP to distribute the light behind the LCD array to the surface of the entire panel with uniform intensity. In such displays, LED light is coupled into the LGP from at least one edge of the LGP (coupling edge) and the light is extracted by the diffusion structure on the LGP as it diffuses, which is typically white lacquer or surface dispersed component. The edge-lit LGP exhibits advantages over direct illumination, where the LED array is used to directly illuminate the panel because the panel can be made extremely thin. However, one advantage of direct illumination over edge-lit displays is that each individual LED in the array can be individually driven so that less light can be used to illuminate darker areas by darkening portions of some of the LEDs. To make it image. This is called "local dimming", which saves energy consumption and improves image contrast, especially in the black areas of the picture. Although local dimming is also cited in the edge-lit LGP, this results in relatively low efficiency due to the fact that the light emitted by a single LED rapidly spreads into the LGP as the light diffuses, causing fewer differences in the pixel. And the image contrast effect is low. Simply put, the current method of local dimming cannot meet the needs of manufacturers and customers in the display industry.

相應地，有利地是，提供用於顯示器裝置、可以解決上述缺陷的背光，例如，提供具備光輸出強度的高均勻度的、具備強對比度的和/或具備局部或主動調光的較薄背光。還有利地是，提供顯示裝置的背光，該背光可以具有類似於側光式BLU厚度的較低厚度，同時，還提供類似背下式BLU的局部調光效能。Accordingly, it is advantageous to provide a backlight for a display device that can address the above-mentioned drawbacks, for example, to provide a high uniformity with light output intensity, a strong contrast, and/or a thin backlight with local or active dimming . It is also advantageous to provide a backlight for the display device that can have a lower thickness similar to the thickness of the edge-lit BLU, while also providing a local dimming performance similar to the BRU.

在各種實施例中，本揭露涉及一種包含一光導板的照明裝置，該光導板包含一第一邊緣和一第一主表面，該第一主表面包含複數個光擷取特徵；至少一個光源與該第一邊緣耦接；以及至少一個邊緣反射器沿著該光導板的至少一部份邊緣設置。本文還揭示一種包含該照明裝置的顯示裝置。In various embodiments, the present disclosure is directed to an illumination device including a light guide plate including a first edge and a first major surface, the first major surface including a plurality of light extraction features; at least one light source and The first edge is coupled; and the at least one edge reflector is disposed along at least a portion of the edge of the light guide. Also disclosed herein is a display device including the illumination device.

在具體實施例中，該第一邊緣可以包含與該光源耦接的一凹入部或倒角。根據其他實施例所述，該複數個光擷取特徵可以設置在該第一主表面上或設置在該LGP矩陣中鄰近（例如，在下方）該第一主表面的位置處。例如，該光擷取特徵可以透過壓印或蝕刻LGP的一表面或可以透過在該LGP的表面處或下方進行雷射損傷產生。在各種實施例中，可以將該複數個光擷取特徵佈置成一種圖樣，以在該光導板的第一主表面的整個表面上產生實質上均勻的光輸出強度。光擷取特徵的該圖案可以是均勻的或非均勻的。根據具體實施例所述，可以沿著LGP的所有邊緣，除了與該光源耦接的該第一邊緣的一部份，以設置至少一個邊緣反射器。In a particular embodiment, the first edge can include a recess or chamfer coupled to the light source. According to other embodiments, the plurality of light extraction features may be disposed on the first major surface or at a location adjacent (eg, below) the first major surface in the LGP matrix. For example, the light extraction feature can be created by embossing or etching a surface of the LGP or by performing laser damage at or below the surface of the LGP. In various embodiments, the plurality of light extraction features can be arranged in a pattern to produce a substantially uniform light output intensity over the entire surface of the first major surface of the light guide. The pattern of light extraction features may be uniform or non-uniform. According to a particular embodiment, at least one edge reflector can be provided along all edges of the LGP except for a portion of the first edge that is coupled to the light source.

本揭露還涉及一種包含複數個光導板的照明裝置，其中，該複數個光導板中每個光導板的至少一第一邊緣與至少一個光源耦接；且其中，至少一個邊緣反射器沿著每個光導板的至少一部份邊緣設置。本文還揭示一種包含該照明裝置的顯示裝置。The present disclosure also relates to an illumination device including a plurality of light guide plates, wherein at least one first edge of each of the plurality of light guide plates is coupled to at least one light source; and wherein at least one edge reflector is along each At least a portion of the edges of the light guide plates are disposed. Also disclosed herein is a display device including the illumination device.

根據各種實施例所述，該複數個LGP中至少一個LGP可以包含光擷取特徵，該光擷取特徵設置在該LGP的一第一主表面上，或設置在該LGP矩陣中鄰近（例如，在下方）該第一主表面的位置處。可以將至少一個LGP的該複數個光擷取特徵佈置成一種圖樣，以在該LGP的第一主表面的整個表面上產生實質上均勻的光輸出強度。在額外的實施例中，可以將至少兩個LGP的該複數個光擷取特徵佈置成一種圖樣，以在該照明裝置的一發光表面的整個表面上產生實質上均勻的光輸出強度。根據具體實施例所述，可以將該LGP佈置成二維陣列。在額外的實施例中，該照明裝置還可以包含至少一個附加LGP，該附加LGP定位成與該至少一個光源重疊對準。該附加LGP可以包含一主表面上的補充光擷取特徵，該主表面面對該至少一個光源。在一些實施例中，該照明裝置可以進一步包含一種用於將該至少一個光源的一光源輸出分離的設備。According to various embodiments, at least one of the plurality of LGPs may include a light extraction feature disposed on a first major surface of the LGP or disposed adjacent to the LGP matrix (eg, Below the position of the first major surface. The plurality of light extraction features of the at least one LGP can be arranged in a pattern to produce a substantially uniform light output intensity across the entire surface of the first major surface of the LGP. In an additional embodiment, the plurality of light extraction features of the at least two LGPs can be arranged in a pattern to produce a substantially uniform light output intensity over the entire surface of a light emitting surface of the illumination device. The LGPs can be arranged in a two-dimensional array as described in accordance with a particular embodiment. In an additional embodiment, the illumination device can also include at least one additional LGP positioned to overlap the at least one light source. The additional LGP can include a supplemental light extraction feature on a major surface that faces the at least one light source. In some embodiments, the illumination device can further include a device for separating a light source output of the at least one light source.

本案揭露內容的附加特徵和優點將在隨後的描述中闡述，且所屬技術領域中具有通常知識者將從該描述熟知或經由本文描述的包含隨後的詳細說明、申請專利範圍和附圖方法實踐而認可其部分。Additional features and advantages of the present disclosure will be set forth in the description which follows, and in the <RTIgt; Recognize its parts.

應當理解，上述一般描述和以下詳細描述都呈現本發明的實施例，並且上述一般描述和以下詳細描述意欲提供用於理解本申請專利範圍的本質和特性的概述和框架。本說明書包含該附圖，以提供對本揭露的進一步理解，並且該附圖併入本說明書且構成本說明書的一部分。該附圖對本發明的實施例進行圖解，並且與說明書一起用於解釋各種實施例的原理和操作。The foregoing description of the preferred embodiments of the invention and the claims The accompanying drawings are included to provide a further understanding of the disclosure and The drawings illustrate embodiments of the invention and, together with the description,

本文揭示一種包含一光導板的照明裝置，該光導板包含一第一邊緣和一第一主表面，該第一主表面包含複數個光擷取特徵；至少一個光源與該第一邊緣耦接；以及至少一個邊緣反射器沿著該光導板的至少一部份邊緣設置。本文還揭示各種包含該照明裝置的裝置，諸如，顯示和照射裝置，例如，電視、計算機、電話、平板電腦和其他顯示面板、室內照明、固態照明、告示牌和其他建築型元件等等。本文所述之裝置和設備可以用以提供具備較高光輸出強度均勻度的、改進對比度的和/或局部或主動調光的較薄背光。Disclosed herein is an illumination device including a light guide plate, the light guide plate including a first edge and a first major surface, the first major surface including a plurality of light extraction features; at least one light source coupled to the first edge; And at least one edge reflector is disposed along at least a portion of the edge of the light guide. Also disclosed herein are various devices including the illumination device, such as display and illumination devices, such as televisions, computers, telephones, tablets and other display panels, interior lighting, solid state lighting, billboards, and other architectural components. The devices and devices described herein can be used to provide thinner backlights with improved uniformity of light output intensity, improved contrast, and/or local or active dimming.

第 1A-C 圖 圖解了照明裝置100 或「瓦塊」的各種實施例，該照明裝置包含光導板（LGP）105 和至少一個光源110 ，例如，至少一個發光二極體（LED），該發光二極體可以用於局部或主動調光且可以用於提高光輸出強度的均勻度和改良對比度。在第 1A 圖 中，光源110 可以與LGP105 的第一邊緣115 耦接，例如，定位在第一邊緣115 附近。可以沿著LGP105 的至少一部份邊緣設置至少一個邊緣反射器120 。例如，如圖所示，邊緣反射器120 可以沿著LGP105 的第二、第三和第四邊緣125 、130 、135 設置。在一些實施例中，邊緣反射器120 還沿著至少一部份第一邊緣115 延伸，例如，沿著未與光源110 耦接的一部份邊緣延伸。在一些實施例中，LGP105 的整個周邊（除了與光源耦接的邊緣部份）實質上都由至少一個邊緣反射器120 覆蓋。當然，邊緣反射器的任何佈置都是可能的，且可以構造為實現所需的光輸出效果。在一些實施例中，邊緣反射器120 可以反射實質上所有的入射其上的光線。在其他實施例中，邊緣反射器120 或其一部份可以反射一定比例的光線，且可以使一些光線漏給附近的LGP（參見第2圖）。例示性的反射比例數值可以包含大於50%、50到95%之間、小於或等於100%、60到90%之間，和這些之間的子範圍內的值。 Of 1A-C diagram illustrating an illumination apparatus 100 or various "tiles" of the embodiment, the lighting device comprising 105 and at least one light source 110 of the light guide plate (of the LGP), e.g., the at least one light emitting diode (the LED), the light emitting The diode can be used for local or active dimming and can be used to increase the uniformity of light output intensity and improve contrast. In FIG . 1A , light source 110 can be coupled to first edge 115 of LGP 105 , for example, positioned adjacent first edge 115 . At least one edge reflector 120 may be disposed along at least a portion of the edge of the LGP 105 . For example, as shown, the edge reflector 120 can be disposed along the second, third, and fourth edges 125 , 130 , 135 of the LGP 105 . In some embodiments, the edge reflector 120 also extends along at least a portion of the first edge 115 , for example, along a portion of the edge that is not coupled to the light source 110 . In some embodiments, the entire perimeter of the LGP 105 (except for the edge portions that are coupled to the light source) is substantially covered by at least one edge reflector 120 . Of course, any arrangement of edge reflectors is possible and can be configured to achieve the desired light output effect. In some embodiments, the edge reflector 120 can reflect substantially all of the light incident thereon. In other embodiments, the edge reflector 120 or a portion thereof can reflect a certain proportion of light and can cause some of the light to leak to a nearby LGP (see Figure 2). Exemplary reflectance values can include values greater than 50%, between 50 and 95%, less than or equal to 100%, between 60 and 90%, and subranges between these.

本文所用的術語「耦接」意欲指示光源設置於該LGP的邊緣處，以便將光線引入該LGP中。根據具體實施例所述，當光線射入LGP中時，光線由於全內反射（TIR）會在LGP中捕獲並跳動，一直持續到其打到LGP內部、上方或LGP處的光擷取特徵，且離開LGP時。附圖中以箭頭說明LGP內例示性和非限制性光線路徑。根據各種實施例所述，藉由在照明裝置中併入一個或多個反射器，穿過光導板的光循環可以得到加強，這可以使得光強度和/或色彩的均勻度可以得到提升。在一些實施例中，邊緣反射器既可以在LGP內提供光線增強的鏡面反射率，亦可以提供光線增強的擴散反射率，從而，光線在LGP內經提取之前可以跳動多次。適合用作邊緣反射器的材料可以包含，例如，反光貼片，諸如，WhiteOptics（例如，White98^TM ）和3M（Vikuiti^TM ）的商用擴散型反射薄膜或強化型鏡面反射器（ESR）、或金屬薄膜，諸如，鋁、金、銀、銅、鉀和類似的金屬薄膜。The term "coupled" as used herein is intended to indicate that a light source is disposed at the edge of the LGP to introduce light into the LGP. According to a specific embodiment, when light is incident on the LGP, the light is captured and beaten in the LGP due to total internal reflection (TIR) until it hits the light extraction feature inside, above or at the LGP. And when leaving the LGP. Exemplary and non-limiting ray paths within the LGP are illustrated by arrows in the figures. According to various embodiments, by incorporating one or more reflectors in the illumination device, light cycling through the light guide plate can be enhanced, which can result in improved uniformity of light intensity and/or color. In some embodiments, the edge reflector can provide both a light enhanced specular reflectance within the LGP and a light enhanced diffuse reflectance such that the light can be beaten multiple times before being extracted within the LGP. Suitable for use as an edge of the reflector material may comprise, for example, reflective patches, such as, WhiteOptics (e.g., White98 ^TM) and 3M (Vikuiti ^TM) commercial film or the diffusion reflective specular reflector strengthened (the ESR), or a metal Films such as aluminum, gold, silver, copper, potassium and similar metal films.

如第 1B 圖 所示，光源110 還可以與第一邊緣115 耦接，該第一邊緣可以包含聯接兩個側邊緣的倒角117 ，例如，第三和第五邊緣130 、140 或任何其他兩個相鄰側邊緣。儘管第 1B 圖 中第一邊緣115 的倒角117 所示為實質上對稱的（例如，與聯接的兩個側邊緣形成45°角），但如需要的話，第一邊緣還可能包含非對稱倒角。此外，儘管第一邊緣115 的倒角117 長度所示為大體與光源110 長度對應，但根據任何所需構型，該倒角長度還可能長於光源的長度。在一些非限制性實施例中，由於陡峭角度處發射的光會在LGP內捕獲較長時間，所以中第 1B 圖 所示之構型使得LGP內的光循環得到提升。參考第 1C 圖 ，第一邊緣115 還可能包含至少一個凹槽145 ，且光源110 還可能定為在所述凹槽附近。例如，可以使光源110 實質上與第一邊緣115 的剩餘部份平齊而將其定位（如圖示所示）。As shown in FIG. 1B, the light source 110 may also be coupled to contact with a first edge 115, the first edge 117 may comprise two chamfered side edges of the coupling, e.g., third and fifth edge 130, 140, or any other two Adjacent side edges. Although shown in FIG. 1B the first edge 115 is chamfered 117 is substantially symmetrical (e.g., coupled with the two side edges forming a 45 ° angle), but if desired, may further comprise a first asymmetric edge down angle. Moreover, although the length of the chamfer 117 of the first edge 115 is shown as generally corresponding to the length of the light source 110 , the chamfer length may be longer than the length of the light source, depending on any desired configuration. In some non-limiting embodiments, since the light emitted at a steep angle captures the LGP in a long time, so the first configuration shown in FIG. 1B so that the light circulating inside the LGP be raised. Referring to FIG . 1C , the first edge 115 may also include at least one groove 145 , and the light source 110 may also be positioned adjacent the groove. For example, light source 110 can be positioned substantially flush with the remainder of first edge 115 (as shown).

如第 1D 圖 所示，其是第 1A 圖 中LGP的側視圖，LGP105 可以包含第一主表面155 和相對的第二主表面160 。在具體實施例中，該表面可以是平面或實質上為平面，例如，實質上平直和/或水平。在各種實施例中，該第一和第二表面可以平行或實質上平行。LGP105 可以包含如第 1A 和 1C 圖 所示的四個邊緣，或可以包含如第 1B 圖 所示的不止四個邊緣，例如，多邊形。在其他實施例中，LGP105 可以包含少於四個邊緣，例如，三角形。儘管本揭露包含具有圓形或帶有一個或多個邊緣的其他曲線部份或邊緣的形狀或構型，且儘管其他形狀和構型都意圖包含在該揭露的範圍內，但是透過非限制性實例的方式，光導板可以包含具有複數個邊緣的矩形、正方形或菱形片材，或在至少一個角上包含倒角的菱形片材。As shown on FIG. 1D, FIG. 1A is a side view thereof in the LGP, LGP 105 may include a first major surface 155 and an opposite second major surface 160. In a particular embodiment, the surface can be planar or substantially planar, for example, substantially flat and/or horizontal. In various embodiments, the first and second surfaces can be parallel or substantially parallel. LGP 105 may comprise four edges as shown in FIG. 1A and 1C, or may comprise more than four edges, as shown in FIG. IB of, e.g., polygonal. In other embodiments, the LGP 105 can include fewer than four edges, such as a triangle. Although the present disclosure encompasses shapes or configurations having circular or other curved portions or edges with one or more edges, and although other shapes and configurations are intended to be included within the scope of the disclosure, By way of example, the light guide plate can comprise a rectangular, square or diamond shaped sheet having a plurality of edges, or a diamond shaped sheet comprising chamfered corners on at least one corner.

在一些實施例中，LGP可以包含帶有任何所需尺寸的正方形，該所需尺寸諸如：1 mm x 1mm、5 mm x 5mm、10 mm x 10 mm、50 mm x 50 mm、100 mm x 100 mm、200 mm x 200 mm、300 mm x 300 mm、400 mm x 400 mm、500 mm x 500 mm、600 mm x 600 mm、700 mm x 700 mm、800 mm x 800 mm、900 mm x 900 mm、1 m x 1 m、2 m x 2 m、3 m x 3 m、4 m x 4 m、5 m x 5 m、6 m x 6 m、7 m x 7 m、8 m x 8 m、9 m x 9 m、10 m x 10 m等等。當然，LGP還可以具有任何其他形狀（例如，矩形、菱形、三角形、圓形等），且上述尺寸可以對應這些形狀的一個或多個尺寸（例如，寬度、長度、高度、直徑等）。在一些實施例中，LGP可以具有範圍在1 mm到約1 m之間的至少一個尺寸。In some embodiments, the LGP can comprise a square with any desired dimensions such as: 1 mm x 1 mm, 5 mm x 5 mm, 10 mm x 10 mm, 50 mm x 50 mm, 100 mm x 100 Mm, 200 mm x 200 mm, 300 mm x 300 mm, 400 mm x 400 mm, 500 mm x 500 mm, 600 mm x 600 mm, 700 mm x 700 mm, 800 mm x 800 mm, 900 mm x 900 mm, 1 mx 1 m, 2 mx 2 m, 3 mx 3 m, 4 mx 4 m, 5 mx 5 m, 6 mx 6 m, 7 mx 7 m, 8 mx 8 m, 9 mx 9 m, 10 mx 10 m, etc. Wait. Of course, the LGP can also have any other shape (eg, rectangular, diamond, triangular, circular, etc.), and the above dimensions can correspond to one or more dimensions (eg, width, length, height, diameter, etc.) of the shapes. In some embodiments, the LGP can have at least one dimension ranging from 1 mm to about 1 m.

根據各種實施例所述，再次參考第 1D 圖 ，LGP105 的第一主表面155 或第二主表面160 可以具備複數個光擷取特徵150 的圖案。本文使用的術語「圖案化」意欲指示複數個光擷取特徵以任意所給圖案或設計存在於光導板的表面上，其可為，例如，隨機的或佈置的、重複的或非重複的、均勻的或非均勻的。在其他實施例中，可以將光擷取特徵放置在表面附近（例如，表面下方）LGP的矩陣內。例如，可以在整個表面上分佈光擷取特徵，例如，作為組成粗糙或突起表面的組織上的特徵，或可以在LGP或其部份內分佈和在整個LGP或其部份上分佈，例如，作為雷射損傷特徵。產生該光擷取特徵合適的方法可以包含壓印法，諸如，噴墨壓印、屏幕壓印、微縮壓印和類似的壓印法、假撚法、機械粗糙化法、蝕刻法、注塑模製法、塗層法、雷射損傷法或其他組合法。這些方法的非限制性實例包含，例如，酸性蝕刻表面、使用TiO₂ 塗層表面，以及透過在LGP的表面上或矩陣內雷射聚焦進行LGP雷射損傷。Referring again to FIG . 1D , the first major surface 155 or the second major surface 160 of the LGP 105 can be provided with a pattern of a plurality of light extraction features 150 , as described in various embodiments. The term "patterning" as used herein is intended to mean that a plurality of light extraction features are present on the surface of the light guide plate in any given pattern or design, which may be, for example, random or arranged, repeated or non-repeating, Uniform or non-uniform. In other embodiments, the light extraction features can be placed within a matrix of LGPs near the surface (eg, below the surface). For example, the light extraction features may be distributed throughout the surface, for example, as features on the tissue that make up the rough or raised surface, or may be distributed within the LGP or portions thereof and distributed throughout the LGP or portions thereof, for example, As a laser damage feature. Suitable methods for producing the light extraction feature may include imprint methods such as ink jet imprinting, screen imprinting, microembossing and similar imprinting, false twisting, mechanical roughening, etching, injection molding. Method, coating method, laser damage method or other combination method. Non-limiting examples of such methods include, for example, acid etching the surface, using a TiO ₂ coated surface, and performing LGP laser damage through laser focusing on the surface of the LGP or within the matrix.

本文所揭示的照明裝置還包含複數個光導板，其中，該複數個光導板中每個光導板的至少一第一邊緣與至少一個光源耦接；且其中，至少一個邊緣反射器沿著每個光導板的至少一部份邊緣設置。本文還揭示一種包含該照明裝置的顯示裝置。The illumination device disclosed herein further includes a plurality of light guide plates, wherein at least one first edge of each of the plurality of light guide plates is coupled to at least one light source; and wherein at least one edge reflector is along each At least a portion of the edge of the light guide plate is disposed. Also disclosed herein is a display device including the illumination device.

第 2 圖 展示了包含複數個LGP205 或第 1A-1D 圖 中所示之瓦塊的照明裝置200 ，該複數個LGP或瓦塊可以用以提供具備高光輸出強度均勻度、高對比度和/或局部或主動調光的較薄背光。如圖所示，每個LGP205 的第一邊緣115 都可以與至少一個光源210 耦接。此外，每個LGP205 的至少一個邊緣都可以包含邊緣反射器220 ，諸如，第二、第三和/或第四邊緣，在一些實施例中，如一部份第一邊緣。根據各種實施例所述，複數個LGP可以限定一個或多個凹槽245 ，且光源210 可以定位在所述凹槽內。例如，如第 2 圖 所示，第一邊緣215 可以包含倒角（參見，例如第 1B 圖 ），且可以佈置複數個LGP以使得單獨的倒角可以形成四邊形凹槽，例如，正方形凹槽245 ，可以將一個或多個光源210 定位在該四邊形凹槽中。當然，該等凹槽和倒角可以具有任何其他合適的大小和/或形狀，在不限制的情況下，諸如，三角形、矩形、菱形、多邊形，或任何其他包含具備一個或多個曲形部份或邊緣的形狀。在其他實施例（未圖示）中，第一邊緣215 可以包含類似於第 1C 圖 所示之凹部的凹部，且複數個LGP可以以任何所需圖案佈置，同時，所有的凹槽都朝向同一方向或不同方向。還可能形成包含複數個LGP的照明裝置，該複數個LGP具有如第 1A 圖 所示之構型。 FIG 2 shows the LGP 205 includes a plurality of tiles or a lighting device 200 shown in the section in FIG. 1A-1D, the plurality of tiles or the LGP may have to provide a uniform light output of a high intensity, high contrast, and / or Thinner backlight with local or active dimming. As shown, the first edge 115 of each LGP 205 can be coupled to at least one light source 210 . Moreover, at least one edge of each LGP 205 can include an edge reflector 220 , such as a second, third, and/or fourth edge, in some embodiments, such as a portion of the first edge. According to various embodiments, the plurality of LGPs may define one or more grooves 245 , and the light source 210 may be positioned within the grooves. For example, as shown in FIG. 2, the first edge 215 may comprise a chamfer (see, e.g. FIG. 1B), and may be arranged such that a plurality of separate chamfered LGP may be formed of a quadrangular recess, e.g., a square recess 245 One or more light sources 210 can be positioned in the quadrilateral recess. Of course, the grooves and chamfers can have any other suitable size and/or shape, without limitation, such as triangles, rectangles, diamonds, polygons, or any other inclusion having one or more curved portions. The shape of the part or the edge. In another embodiment (not shown), it may comprise a first edge 215 shown in FIG. 1C is similar to the recess portion of the concave portion, and a plurality LGP may be arranged in any desired pattern, while all the grooves are facing in the same Direction or direction. It may also be formed comprising a plurality of the LGP illumination device, the plurality of first LGP as having the configuration shown in FIG. 1A.

根據各種實施例所述，可以一起佈置或平鋪複數個LGP（具有任何構型），以形成二維陣列。由於能夠單獨處理陣列中多個光源，BLU使用了單個側光式LGP，與之相比，在一些實施例中，使用該側光式LGP陣列的BLU可以提供得到提升的局部調光力和/或對比度。例如，可能關閉與顯示圖像黑暗區域對應的具體光源。由於光源與LGP放在平面上而不是遠離LGP一定距離定位，所以，與習知的背光式BLU相比，該直下式BLU還可以提供得以提升的厚度。另外，能夠一起平鋪多個LGP在為多個具備不同尺寸規格的應用製備照明裝置的過程中，可以提供較高的靈活性，該具備不同尺寸規格的多個應用，例如，小型照明應用（例如，1-10mm尺寸）、移動和手持式應用（例如，10mm-20mm尺寸）、顯示應用（例如，10cm-200cm尺寸）和告示牌（例如，1-10m尺寸）。在具體實施例中，LGP陣列可以具有範圍在約50mm到約10m之間至少一種尺寸（例如，長度、寬度、高度、直徑等）。According to various embodiments, a plurality of LGPs (with any configuration) may be arranged or tiled together to form a two-dimensional array. Since the BLU can be used to process multiple sources in the array separately, the BLU uses a single edge-lit LGP, in contrast to which, in some embodiments, the BLU using the edge-lit LGP array can provide improved local dimming power and/or Or contrast. For example, it is possible to turn off a specific light source corresponding to the dark area of the displayed image. Since the light source is positioned on the plane rather than away from the LGP at a certain distance, the direct BLU can also provide an increased thickness compared to conventional backlight BLUs. In addition, the ability to tile multiple LGPs together provides greater flexibility in the preparation of lighting fixtures for multiple applications of different sizes, for multiple applications of different sizes, such as small lighting applications ( For example, 1-10 mm size), mobile and handheld applications (eg, 10 mm-20 mm size), display applications (eg, 10 cm-200 cm size), and billboards (eg, 1-10 m size). In a particular embodiment, the LGP array can have at least one dimension (eg, length, width, height, diameter, etc.) ranging from about 50 mm to about 10 m.

現在將參考第 3A 圖 ，在照明裝置300 中需要包含至少一個附加LGP365 。例如，在避免減少光源310 或其他相關聯電子設備對應的區域中光線強度方面，直下式BLU中多個側光式LGP的使用可以具有挑戰性。在各種實施例中，可以將至少一個附加LGP365 定位成與至少一個光源310 重疊對準，從而可以掩蔽側光照明區域中任何減少的光線強度。例如，如第 3A 圖 所示，可以將附加LGP365 部份覆蓋或橋接（「豬馱式」）兩個或兩個以上LGP305 ，從而使附加LGP365 可以與一個或多個光源310 重疊對準。在一些實施例中，附加LGP365 可以在正對光源310 的表面上設有補充光擷取特徵370 ，例如在下側。Now with reference to FIG. 3A, in the illumination device 300 need to include at least one additional LGP 365. For example, the use of multiple side-lit LGPs in a direct-lit BLU can be challenging in avoiding reducing the intensity of light in areas corresponding to light source 310 or other associated electronic devices. In various embodiments, the at least one additional LGP 365 can be positioned in overlapping alignment with the at least one light source 310 such that any reduced light intensity in the sidelight illumination region can be masked. For example, as shown in section in FIG. 3A, additional LGP 365 may partially cover or bridge ( "piggy-pig") two or more LGP 305, so that the LGP 365 may be attached to one or more light sources 310 of overlap quasi. In some embodiments, the additional LGP 365 can be provided with a complementary light extraction feature 370 on the surface facing the light source 310 , such as on the underside.

另外，可以使用光擷取特徵350 對LGP305 進行圖案化，從而在光源310 附近可以存在較強的特徵強度。例如，與區域350b 相比，區域350a 可以具有更高的特徵強度。使用該種構型，可能將下面的LGP305 設計成靠近附加LGP365 散佈更多的光線，以在整個裝置上提供實質上均勻的光線強度（參見第 3B 圖 ）。如上所述，複數個LGP或其陣列中的每個LGP305 可以或不可以表現出均勻的光線強度分佈；然而，可以佈置或設計單個具有非均勻分佈的LGP，從而可以在整個裝置的發光表面上實現整體上實質上均勻的光線輸出強度。還應該指出的是，儘管一般所述的光擷取特徵350 都是如第 3A-B 圖 所示的分散的、均勻間隔開的特徵，但其可以在不偏離本揭露的精神和範圍的情況下，以無數個不同的構型佈置。Additionally, the LGP 305 can be patterned using the light extraction feature 350 such that there can be a strong feature intensity near the source 310 . For example, region 350a may have a higher feature strength than region 350b . Using this kind of configuration, the LGP 305 may be designed as the following additional LGP 365 close to the light scattered more, so as to provide a substantially uniform light intensity (see Figure 3B) across the device. As described above, each of the LGPs 305 or an array thereof may or may not exhibit a uniform light intensity distribution; however, a single LGP having a non-uniform distribution may be arranged or designed so that the light emitting surface of the entire device may be A substantially uniform light output intensity is achieved overall. It should also be noted that, although the general features of the light-capturing section 350 are dispersed as shown in FIG. 3A-B, the uniformly spaced apart features, but it may be the case in the present disclosure without departing from the spirit and scope of the Next, it is arranged in a myriad of different configurations.

例如，第 4 圖 描述了隨兩個具有不同例示性蝕刻表面的LGP之發射角變化的光線強度。從圖形中可以看出，角度變化的不同範圍可以使LGP瓦塊的設計得以實現，從而光源和/或邊緣反射器附近的發射角可以比更靠近LGP中心點處的發射角更加陡峭（參見第 3B 圖 中的圈出來的區域）。利用此變化，可能設計LGP的光擷取特徵，以減少或甚至消除陣列中任何靠近LGP之間的暗淡或陰影區域（例如，與光源和/或電子設備的位置對應）。For example, FIG. 4 describes the light intensity of the LGP emission angle with two different exemplary embodiment of the etched surface changes. As can be seen from the graph, the different ranges of angular variations allow the design of the LGP tile to be achieved so that the emission angle near the source and/or edge reflector can be steeper than the emission angle closer to the LGP center point (see section The circled area in the 3B diagram ). With this variation, it is possible to design the light extraction features of the LGP to reduce or even eliminate any dim or shaded areas between the LGPs in the array (eg, corresponding to the location of the light source and/or electronic device).

再次參考第 3A 圖 ，在各種實施例中，附加LGP365 的厚度可以小於LGP305 的厚度。例如，在具體實施例中，附加LGP365 的厚度可以在約0.1mm至約2 mm之範圍，例如約0.3 mm至約1.5 mm、或約0.5 mm至約1 mm，其包含其間的所有範圍及子範圍。可以用與LGP305 一樣的材料構造附加LGP365 ，諸如塑膠、玻璃和微結構材料等等。在一些實施例中，若附加LGP365 括不同於LGP305 的材料，則這些材料的折射率實質上類似。根據額外的實施例所述，可以應用黏合材料375 ，諸如聚合物或其他適合的材料，以將附加LGP365 定至下面的LGP305 上。在該實施例中，黏合材料375 的折射率實質上可以類似於LGP305 和附加LGP365 折射率。Referring again to FIG . 3A , in various embodiments, the thickness of the additional LGP 365 can be less than the thickness of the LGP 305 . For example, in a particular embodiment, the thickness of the additional LGP 365 can range from about 0.1 mm to about 2 mm, such as from about 0.3 mm to about 1.5 mm, or from about 0.5 mm to about 1 mm, including all ranges therebetween and Subrange. Additional LGP 365 can be constructed from the same materials as LGP 305 , such as plastic, glass, and microstructured materials. In some embodiments, if the additional LGP 365 includes materials other than LGP 305 , the refractive indices of these materials are substantially similar. According to additional embodiments, an adhesive material 375 , such as a polymer or other suitable material, may be applied to position the additional LGP 365 onto the underlying LGP 305 . In this embodiment, the refractive index of the bonding material 375 can be substantially similar to the LGP 305 and the additional LGP 365 refractive index.

儘管第 3A 圖 展示了橋接兩個下面LGP305 的附加LGP365 ，但還可能的是，不止一個LGP365 附加橋接多對LGP305 ，或一個附加LGP365 橋接不止兩個LGP305 ，或不止一個附加LGP365 橋接不止兩個LGP305 ，等等。在一些實施例中，附加LGP365 可以是實質上覆蓋整個裝置表面區域的單一部件，例如，橋接組成照明裝置300 的陣列中所有LGP305 。Although FIG. 3A shows a first bridging two following additional LGP LGP 365 305, it is also possible that more than one additional bridging LGP 365 LGP 305 pairs, or more than one additional bridging two LGP 365 LGP 305, or more than one additional LGP 365 bridges more than two LGP 305 , and so on. In some embodiments, the additional LGP 365 can be a single component that substantially covers the entire surface area of the device, for example, bridging all of the LGPs 305 in the array that make up the illumination device 300 .

根據各種實施例所述，照明裝置還可以包含用於分離一個或多個光源輸出的設備（未圖示）。例如，可以使用光學部件將光源310 的一些光輸出從LGP305 （平面式）重新引導至附加LGP365 （豬馱式）。According to various embodiments, the illumination device may also include a device (not shown) for separating the output of one or more of the light sources. For example, some of the light output of source 310 can be redirected from LGP 305 (planar) to an additional LGP 365 (porcine) using optical components.

在上述各種實施例中，並參考第 1-4 圖 ，選擇性地存在LGP的第一和第二表面上的光擷取特徵可以包含光散佈地址。根據各種實施例，該提取特徵可以以合適的密度進行圖案化，以便在LGP的整個主表面上產生實質上的均勻照明。在其他實施例中，可以將該多個光擷取特徵進行圖案化，以在LGP的整個主表面上產生非均勻的光輸出強度。例如，如下面將詳細所述，在裝置包含複數個LGP的情況下，該複數個中的一個或多個LGP可以在整個其單獨的表面上都具有非均勻光輸出強度的分佈，但整個裝置的整個發光表面上光輸出強度的整體分佈是非均勻的。在具體實施例中，由於適於在LGP或整個裝置上產生所需光輸出分佈，所以靠近光源的光擷取特徵密集度可以比進一步遠離光源處的光擷取特徵的密集度大，反之亦然，例如，從一端到另一端的梯度分佈。In the various embodiments, and with reference to FIGS. 1-4, optionally in the presence of the first and second light capturing feature on surface of the LGP may comprise light spreading address. According to various embodiments, the extraction features may be patterned at a suitable density to produce substantially uniform illumination across the major surface of the LGP. In other embodiments, the plurality of light extraction features can be patterned to produce a non-uniform light output intensity across the major surface of the LGP. For example, as will be described in more detail below, where the device includes a plurality of LGPs, one or more of the plurality of LGPs may have a distribution of non-uniform light output intensity across their individual surfaces, but the entire device The overall distribution of light output intensity across the entire illuminated surface is non-uniform. In a particular embodiment, since the desired light output distribution is suitable to be produced on the LGP or the entire device, the intensity of the light extraction feature near the light source may be greater than the intensity of the light extraction feature further away from the light source, and vice versa. However, for example, a gradient distribution from one end to the other.

LGP表面上或附近的光擷取特徵可以隨著其長度的變化而變化，從而每單位長度的擷取效率，其中，L是光導板的長度且x是沿著LGP的位置。可以使用每單位長度的提取效率設計LGP上的光擷取特徵，且可以對每單位長度的提取效率的功能形式進行修改，以適應穿過LGP的多個光通道。因此，可以控制LGP上任何給定位置處的光擷取特徵，以便產生實質上空間性地、光譜性的和/或成角度性的均勻發光，其中，整個發光表面的發光亮度實質上一致。在一些實施例中，爲了在整個LGP上產生更均勻的光分佈，光擷取特徵強度可以隨著遠離注入點的距離反向變化，例如，越遠離光源位置處的強度越高。當然，還可以改變強度，以產生本文更詳細描述的非均勻的分佈。The light extraction characteristics on or near the surface of the LGP may vary with the length thereof, so that the extraction efficiency per unit length, among them , L is the length of the light guide plate and x is the position along the LGP. The light extraction feature on the LGP can be designed using the extraction efficiency per unit length, and the functional form of the extraction efficiency per unit length can be modified to accommodate multiple optical channels through the LGP. Thus, the light extraction features at any given location on the LGP can be controlled to produce substantially spatial, spectral, and/or angular uniform illumination, wherein the illumination brightness of the entire illumination surface is substantially uniform. In some embodiments, to produce a more uniform light distribution across the LGP, the light extraction feature intensity may change inversely with distance away from the injection point, for example, the intensity away from the source location is higher. Of course, the intensity can also be varied to produce a non-uniform distribution as described in more detail herein.

光擷取特徵可以依據LGP表面中特徵的深度來產生表面散佈和/或體積散佈。光擷取特徵的尺寸大小還可以影響LGP的光散佈特性。不希望受理論的限制，應該相信，小型特徵既可以向後散佈光線亦可以向前散佈光線，然而較大的特徵則傾向於主要向前散佈光線。因此，例如，根據各種實施例所述，光擷取特徵的相關長度可以小於約100nm，例如70nm或小於約50nm。此外，在一些實施例中，較大的提取特徵可以提供向前的光散佈，但以小角度分散。相應地，在各種實施例中，光擷取特徵的相關長度範圍可以在約20nm到約500nm之間，例如，在約50nm到約100nm之間、在約150nm到200nm之間、或約250到約350nm之間，包含所有範圍和這些範圍之間的子範圍，以及這些範圍的組合，以形成階層式特徵。例如，可以透過在生產提取特徵時使用加工參數，以控制光擷取特徵的光學特性。The light extraction feature can produce surface dispersion and/or volume dispersion depending on the depth of features in the LGP surface. The size of the light extraction feature can also affect the light dispersion characteristics of the LGP. Without wishing to be bound by theory, it is believed that small features can either scatter light backwards or scatter light forward, while larger features tend to scatter light primarily forward. Thus, for example, according to various embodiments, the associated length of the light extraction features can be less than about 100 nm, such as 70 nm or less than about 50 nm. Moreover, in some embodiments, larger extraction features may provide forward light dispersion, but are dispersed at a small angle. Accordingly, in various embodiments, the associated length of the light extraction features can range from about 20 nm to about 500 nm, for example, between about 50 nm to about 100 nm, between about 150 nm to 200 nm, or about 250 to Between about 350 nm, all ranges and sub-ranges between these ranges, as well as combinations of these ranges, are included to form a hierarchical feature. For example, the optical properties of the light extraction feature can be controlled by using processing parameters in the production of the extracted features.

在具體實施例中，LGP的第一或第二表面可以透過，例如蝕刻、損傷、塗層和/或粗糙化的方法，產生紋理，從而使表面具有範圍在約10nm到約150nm之間的平均粗糙度R_a ，諸如小於約100nm、小於約80nm、小於約60nm、小於約50nm，或小於約25nm，包含所有的範圍和這些範圍之間的子範圍。例如，LGP的第一或第二表面的表面粗糙度R_a 約為50nm，或在其他實施例中，約為100nm或約20nm。根據各種實施例所述，第一或第二表面即使在紋理化產生複數個光擷取特徵時，亦實質上可以是平面的。In a particular embodiment, the first or second surface of the LGP may be permeable, such as by etching, damage, coating, and/or roughening, to create a texture such that the surface has an average ranging from about 10 nm to about 150 nm. Roughness R _a , such as less than about 100 nm, less than about 80 nm, less than about 60 nm, less than about 50 nm, or less than about 25 nm, encompasses all ranges and subranges between these ranges. For example, the surface roughness R of the first or second surface of the LGP _a is about 50 nm, or in other embodiments, about 100nm, or about 20nm. According to various embodiments, the first or second surface may be substantially planar even when the texture produces a plurality of light extraction features.

可以根據本領域已知的任何方法，處理LGP產生光擷取特徵，例如，共同申請和共同擁有的國際專利申請第 PCT/US2013/063622和PCT/US2014/070771號中所揭示的方法，該等專利申請中每個都整體作為參考併入本文。例如，可以研磨和/或拋光LGP的表面，以實現所需的厚度和/或表面品質。隨後，可以選擇性地清洗該玻璃和/或對將要蝕刻的表面進行去除污染的操作，例如將表面暴露於臭氧中。透過非限制性實施例的方式，該表面暴露在酸浴中，例如，按約1：1到約9：1範圍內的比例混合冰醋酸（GAA）和氟化銨（NH₄ F）的混合液例如，蝕刻時間可以在約30秒到約15分鐘之間，且蝕刻可以在室溫或升溫下進行。處理參數例如酸濃度/比率、溫度和/或時間可影響該產生的提取特徵的大小、形狀和分佈。所屬技術領域具有通常知識者有能力改變該等參數以實現期望的表面提取特徵。LGP can be used to produce light extraction features according to any method known in the art, such as those disclosed in co-pending and co-pending International Patent Applications No. PCT/US2013/063622 and PCT/US2014/070771, which are incorporated herein by reference. Each of the patent applications is incorporated herein by reference in its entirety. For example, the surface of the LGP can be ground and/or polished to achieve the desired thickness and/or surface quality. Subsequently, the glass can be selectively cleaned and/or the operation of decontaminating the surface to be etched, such as exposing the surface to ozone. By way of non-limiting example, the surface is exposed to an acid bath, for example, a mixture of glacial acetic acid (GAA) and ammonium fluoride (NH ₄ F) in a ratio ranging from about 1:1 to about 9:1. For example, the etching time may be between about 30 seconds and about 15 minutes, and the etching may be performed at room temperature or elevated temperature. Processing parameters such as acid concentration/ratio, temperature, and/or time can affect the size, shape, and distribution of the resulting extracted features. Those of ordinary skill in the art have the ability to change these parameters to achieve the desired surface extraction features.

在例示性蝕刻方法的第一步中，可以使用清潔劑清洗待蝕刻的玻璃基底，以移除所有無機污染物，隨後，進行充分漂洗，以移除清潔劑殘留物。可以達到足以獲得小於約20°水接觸角的清潔水平。例如，可以使用Kriiss GmbH製造的DSA100液滴形狀分析儀和應用靜滴法評估接觸角，儘管還可以使用其他合適的方法進行此操作。在可選性地第二步中，只要玻璃基底的單側即將進行蝕刻，則可以使用合適的黏性聚合物薄膜（或其他酸性阻隔層）層壓玻璃基底的一側。在完成蝕刻操作后，可以從玻璃基底上移除聚合物薄膜。應該注意的是，若基底的相對側（背側）即將進行蝕刻操作，可以使用類似的方法，其中，聚合物薄膜貼附至基底的前表面。In the first step of the exemplary etching method, the glass substrate to be etched may be cleaned using a cleaning agent to remove all inorganic contaminants, followed by sufficient rinsing to remove the detergent residue. A level of cleanliness sufficient to achieve a water contact angle of less than about 20° can be achieved. For example, the contact angle can be evaluated using a DSA100 drop shape analyzer manufactured by Kriiss GmbH and applying a static drop method, although other suitable methods can also be used for this operation. In an optional second step, one side of the glass substrate can be laminated using a suitable viscous polymer film (or other acidic barrier layer) as long as one side of the glass substrate is about to be etched. The polymer film can be removed from the glass substrate after the etching operation is completed. It should be noted that a similar method may be used if the opposite side (back side) of the substrate is to be subjected to an etching operation in which a polymer film is attached to the front surface of the substrate.

在第三步中，可以將玻璃基底與蝕刻劑接觸足夠長的時間（一般接觸0.5分鐘到6分鐘之間），以產生所需的紋理。快速***和適當的環境進行控制沉浸過程，例如，可以使用封閉空間中至少為每分鐘2.83立方米的大氣氣流來限制玻璃基底在***之前和/或***過程中在酸蒸汽的暴露。可以使用平滑移動方法將玻璃基底***酸浴中，以防止在蝕刻表面形成缺陷。可以在玻璃基底與蝕刻劑接觸之前對其進行乾燥。In the third step, the glass substrate can be contacted with an etchant for a sufficient period of time (typically between 0.5 minutes and 6 minutes) to produce the desired texture. The immersion process is controlled by rapid insertion and appropriate environment. For example, an atmosphere of at least 2.83 cubic meters per minute in the enclosed space can be used to limit the exposure of the glass substrate to acid vapor prior to insertion and/or during insertion. The glass substrate can be inserted into the acid bath using a smooth moving method to prevent defects from forming on the etched surface. The glass substrate can be dried prior to contact with the etchant.

在第四步中，可以從蝕刻劑中移除玻璃基底並使其排干水分，隨後用水進行漂洗一次或多次，例如，使用去離子水，或替代性地使用可溶融沉澱物的溶液。可以執行對玻璃基底或漂洗液的攪拌操作，使其足以確保緊貼玻璃基底的含氟酸可以均勻擴散。漂洗步驟可以應用攪拌操作，以避免缺陷產生。接近每分鐘300次的小幅振盪操作是足夠的，例如，約每分鐘250次到350次之間。在一些實例中，可以再循環使用蝕刻劑浴液，以避免分層和耗盡的產生。In the fourth step, the glass substrate can be removed from the etchant and drained of water, followed by rinsing one or more times with water, for example, using deionized water, or alternatively using a solution of the meltable precipitate. Stirring of the glass substrate or rinse can be performed to ensure that the fluorine-containing acid adhering to the glass substrate can be uniformly diffused. The rinsing step can apply a stirring operation to avoid defects. A small oscillating operation close to 300 times per minute is sufficient, for example, between about 250 and 350 times per minute. In some instances, an etchant bath can be recycled to avoid delamination and depletion.

在示例方法的第五步中，任何之前施加至玻璃基底背側的蝕刻阻擋膜可以，諸如透過剝離方法移除。在示例方法的第六步中，可以使用強迫乾淨（過濾）空氣對玻璃基底進行乾燥，以防止玻璃基底上形成其他漂洗溶液產生的水斑或斑點。In the fifth step of the example method, any etch stop film previously applied to the back side of the glass substrate can be removed, such as by a lift-off method. In the sixth step of the exemplary method, the glass substrate can be dried using forced clean (filtered) air to prevent the formation of water spots or spots on other rinsing solutions formed on the glass substrate.

非限制性例示性蝕刻劑可以包含醋酸，例如，重量百分比在92%到98%的冰醋酸、重量百分比在0.5%到5.5%的氟化銨和重量百分比少於6%的水。儘管不希望受任何具體理論限制，但應該相信的是，對應一些實施例來說，水含量越低，氟化銨解離速率就越低，這將導致HF的釋放度下降。較低濃度的HF還可以導致玻璃從玻璃基底上的移除力下降，反過來，這會引起其時刻表面上產生較淺的坑，反過來這回產生低霧度（例如，較高的透明度）。另外，水含量的減少可以造成蝕刻劑中沉澱的水晶掩模的可溶度下降。這意味著該掩模可以在玻璃基底上停留更長時間。當成核晶體在玻璃基底上保持未溶解時，蝕刻劑的蝕刻速率較低且晶體橫向尺寸保持不變，因此將導致低相關長度。Non-limiting exemplary etchants may comprise acetic acid, for example, 92% to 98% by weight glacial acetic acid, 0.5% to 5.5% by weight ammonium fluoride, and less than 6% by weight water. While not wishing to be bound by any particular theory, it is believed that, in some embodiments, the lower the water content, the lower the rate of ammonium fluoride dissociation, which will result in a decrease in the release of HF. Lower concentrations of HF can also cause a decrease in the removal force of the glass from the glass substrate, which in turn causes shallower pits on the surface at all times, which in turn produces low haze (eg, higher transparency). . In addition, a reduction in water content can result in a decrease in the solubility of the crystal mask precipitated in the etchant. This means that the mask can stay on the glass substrate for a longer period of time. When the nucleating crystal remains undissolved on the glass substrate, the etch rate of the etchant is lower and the lateral dimension of the crystal remains the same, thus resulting in a low correlation length.

在具體實施例中，可以依據玻璃基底和/或所需結果調整蝕刻劑。例如，在一些實施例中，蝕刻劑可以包含重量百分比在約10%到約90%＞之間的醋酸（HC₂ H₃ O₂ ），例如重量百分比在約10%＞到約80%＞之間、重量百分比在約20%＞到約70%之間、重量百分比在約20%到約30%之間，或重量百分比在40%到60%＞之間。蝕刻劑可以進一步包含重量百分比在約1%＞到約50%＞之間的NH₄ F，例如重量百分比在約5%到40%之間、重量百分比在約10%＞到約30%＞之間。在具體實施例中，可以使用聚乙二醇或其他有機溶劑替代醋酸。依據所需紋理而定，蝕刻時間的範圍可以在約30秒到2分鐘之間，在一些情況下達到4分鐘。當完成蝕刻時，可以將玻璃基底在1 M H₂ SO₄ 中浸泡1分鐘，以移除玻璃基底表面上的沉積晶體殘留物。然而，在一些實施例中，可以使用其他無機酸替代H₂ SO₄ ，例如使用HC₁ 或HNO₃ 。在一些情況下，使用熱水即可。低PH值和/或高溫可以增加晶體的可溶性。最終，可以使用水（例如，去離子水）對玻璃基底進行漂洗，且使其乾燥。若知道在十分需要的情況下進行高溫蝕刻，則爲了避免與高溫蝕刻相關的生產成本的增加，可以在室溫下執行蝕刻過程。In a particular embodiment, the etchant can be adjusted depending on the glass substrate and/or desired result. For example, in some embodiments, the etchant can comprise between about 10% and about 90% by weight of acetic acid (HC ₂ H ₃ O ₂ ), such as from about 10% by weight to about 80% by weight. The weight percentage is between about 20% > to about 70%, the weight percentage is between about 20% and about 30%, or the weight percentage is between 40% and 60%. The etchant may further comprise from about 1% > to about 50% by weight of NH ₄ F, such as between about 5% and 40% by weight, and between about 10% and about 30% by weight. between. In a particular embodiment, polyethylene glycol or other organic solvent can be used in place of acetic acid. Depending on the desired texture, the etching time can range from about 30 seconds to 2 minutes, and in some cases up to 4 minutes. When the etching is completed, the glass substrate can be immersed in 1 MH ₂ SO ₄ for 1 minute to remove deposited crystal residues on the surface of the glass substrate. However, in some embodiments, other inorganic acids may be used alternatively H ₂ SO _4, for example, HC ₁ or HNO _3. In some cases, use hot water. Low pH and/or high temperatures can increase the solubility of the crystal. Finally, the glass substrate can be rinsed with water (eg, deionized water) and allowed to dry. If it is known that high temperature etching is performed when it is highly desirable, the etching process can be performed at room temperature in order to avoid an increase in production cost associated with high temperature etching.

在具體實施例中，單個LGP或塊體或複數個LGP或組塊可以具有小於或等於3mm的厚度，例如約0.1mm到約2.5mm、約0.3mm到約2mm、約0.5mm到約1.5mm或約0.7mm到約1mm，其包含其間的所有範圍及子範圍。LGP可以具有任何所需大小和/或形狀，為了適於產生所需的光線分佈。在一些實施例中，LGP的至少一種尺寸（例如，長度和/或寬度）可以為約10 mm至約50 mm之範圍，諸如約20 mm至約40 mm、或約25 mm至約30 mm，其包含其間的所有範圍及子範圍。In a particular embodiment, a single LGP or block or a plurality of LGPs or blocks can have a thickness of less than or equal to 3 mm, such as from about 0.1 mm to about 2.5 mm, from about 0.3 mm to about 2 mm, from about 0.5 mm to about 1.5 mm. Or from about 0.7 mm to about 1 mm, including all ranges and sub-ranges therebetween. The LGP can have any desired size and/or shape in order to be suitable for producing the desired light distribution. In some embodiments, at least one dimension (eg, length and/or width) of the LGP can range from about 10 mm to about 50 mm, such as from about 20 mm to about 40 mm, or from about 25 mm to about 30 mm, It contains all ranges and sub-ranges in between.

LGP可以包含任何本領域已知用於顯示裝置的材料。例如，LGP可以包含塑膠，諸如，聚甲基丙烯酸甲酯（PMMA）、微結構（MS）材料或玻璃等等。例示性的玻璃可以包含，但不限於，鋁矽酸鹽、鹼性鋁矽酸鹽、硼矽酸鹽、鹼性硼矽酸鹽、鋁硼矽酸鹽、鹼性鋁硼矽酸鹽、鹼石灰和其他適宜玻璃。適於用作玻璃光導板的商用玻璃非限制性實例包含，例如，EAGLE XG^® 、Lotus^TM 、Willow^® 、Iris^TM 和Corning Incorporated的Gorilla^® 玻璃。一些非限制性玻璃成份可以包括約50 mol %到約90 mol%之間的SiO₂ 、0 mol%到約20 mol%之間的Al₂ O₃ 、0 mol%到約20 mol%之間的B₂ O₃ 以及0 mol%到約25 mol%之間的R_x O，其中，R是Li、Na、K、Rb、Cs中任何一個或多個且x是2，或者R是Zn、Mg、Ca、Sr或Ba中任何一個或多個且x是1，且其中，該玻璃產生小於或等於2 dB/500mm的吸收率。在一些實施例中，R_x O – Al₂ O₃ ＞ 0；0 ＜ R_x O – Al₂ O₃ ＜ 15；x = 2和R₂ O – Al₂ O₃ ＜ 15；R₂ O – Al₂ O₃ ＜ 2；x=2和R₂ O – Al₂ O₃ – MgO ＞ -15；0 ＜ (R_x O – Al₂ O₃ ) ＜ 25、-11 ＜ (R₂ O – Al₂ O₃ ) ＜ 11和-15 ＜ (R₂ O – Al₂ O₃ – MgO) ＜ 11；和/或-1 ＜ (R₂ O – Al₂ O₃ ) ＜ 2以及-6 ＜ (R₂ O – Al₂ O₃ – MgO) ＜ 1。在一些實施例中，該玻璃包含每個都小於1 ppm的Co、Ni和Cr。在一些實施例中，Fe的濃度＜約50ppm、＜約20ppm或＜約10ppm。在其他實施例中，Fe + 30Cr + 35Ni ＜約60ppm、Fe + 30Cr + 35Ni＜約40 ppm、Fe + 30Cr + 35Ni ＜約20ppm或Fe + 30Cr + 35Ni ＜約10ppm。在其他實施例中，成份片材包含約60 mol %到約80 mol%之間的SiO₂ 、0.1 mol%到約15 mol%之間的Al₂ O₃ 、0 mol%到約12 mol%之間的B₂ O₃ 以及約0.1 mol%到約15 mol%之間的R₂ O和約0.1 mol%到約15 mol%之間的RO，其中，R是Li、Na、K、Rb、Cs中任何一個或多個且x是2，或者R是Zn、Mg、Ca、Sr或Ba中任何一個或多個且x是1，且其中，該玻璃產生小於或等於2 dB/500mm的吸收率。The LGP can comprise any material known in the art for use in display devices. For example, the LGP may comprise a plastic such as polymethyl methacrylate (PMMA), microstructure (MS) material or glass, and the like. Exemplary glasses can include, but are not limited to, aluminosilicates, basic aluminosilicates, borosilicates, basic borosilicates, aluminoboronates, basic aluminoborates, bases Lime and other suitable glass. Glass is suitable as a commercial light guide plate comprising non-limiting examples, ^{e.g., EAGLE XG ®, Lotus TM,} Willow ®, Iris TM , and Gorilla ^® glass of Corning Incorporated. Some non-limiting glass composition may comprise between ₂ O _3, 0 mol% to about 20 mol%, between about 50 mol SiO% to about 90 mol% of _2, 0 mol Al between% to about 20 mol% of the B ₂ O ₃ and R _x O between 0 mol% and about 25 mol%, wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is Zn, Mg Any one or more of Ca, Sr or Ba and x is 1, and wherein the glass produces an absorbance less than or equal to 2 dB/500 mm. In some embodiments, R _x O - Al ₂ O ₃ >0; 0 < R _x O - Al ₂ O ₃ <15; x = 2 and R ₂ O - Al ₂ O ₃ <15; R ₂ O - Al ₂ O ₃ <2; x = 2 and R ₂ O - Al ₂ O ₃ - MgO >-15; 0 < (R _x O - Al ₂ O ₃ ) < 25, -11 < (R ₂ O – Al ₂ O ₃ ) < 11 and -15 < (R ₂ O - Al ₂ O ₃ - MgO) <11; and / or -1 < (R ₂ O - Al ₂ O ₃ ) < 2 and -6 < (R ₂ O – Al ₂ O ₃ – MgO) < 1. In some embodiments, the glass comprises Co, Ni, and Cr each less than 1 ppm. In some embodiments, the concentration of Fe is < about 50 ppm, < about 20 ppm, or < about 10 ppm. In other embodiments, Fe + 30Cr + 35Ni < about 60 ppm, Fe + 30Cr + 35Ni < about 40 ppm, Fe + 30Cr + 35Ni < about 20 ppm, or Fe + 30Cr + 35Ni < about 10 ppm. In other embodiments, the composition comprises a sheet between about 60 mol SiO percent to about 80 mol _2, 0.1 mol Al between percent to about _{15 mol 2 O 3, 0 mol} % to about 12 mol% of Between B ₂ O ₃ and between about 0.1 mol% and about 15 mol% of R ₂ O and between about 0.1 mol% and about 15 mol% of RO, wherein R is Li, Na, K, Rb, Cs Any one or more of and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1, and wherein the glass produces an absorption rate less than or equal to 2 dB/500 mm .

在其他實施例中，玻璃成份可以包含約65.79 mol %到約78.17 mol%之間的SiO₂ 、約2.94 mol%到約12.12 mol%之間的Al₂ O₃ 、約0 mol%到約11.16 mol%之間的B₂ O₃ 、約0 mol%到約2.06 mol%之間的Li₂ O、約3.52 mol%到約13.25 mol%之間的Na₂ O、約0 mol%到約4.83 mol%之間的K₂ O、約0 mol%到約3.01 mol%之間的ZnO、約0 mol%到約8.72 mol%的MgO、約0 mol%到約4.24 mol%之間的CaO、約0 mol%到約6.17 mol%之間的SrO、約0 mol%到約4.3 mol%之間的BaO以及約0.07 mol%到約0.11 mol%之間的SnO₂ 。在一些實施例中，玻璃基底可以包含＜ 0.015的色差值。在一些實施例中，玻璃基底可以包含＜ 0.008的色差值。In other embodiments, the glass composition may comprise between SiO% to about 78.17 mol% to about 65.79 mol _2, between about 2.94 mol Al%% to about 12.12 mol ₂ O _3, from about 0 mol% to about 11.16 mol Between B ₂ O ₃ , about 0 mol% to about 2.06 mol% of Li ₂ O, about 3.52 mol% to about 13.25 mol% of Na ₂ O, about 0 mol% to about 4.83 mol%. Between K ₂ O, about 0 mol% to about 3.01 mol% of ZnO, about 0 mol% to about 8.72 mol% of MgO, about 0 mol% to about 4.24 mol% of CaO, about 0 mol. From about 6.17 mol% of SrO, from about 0 mol% to about 4.3 mol% of BaO, and from about 0.07 mol% to about 0.11 mol% of SnO ₂ . In some embodiments, the glass substrate can comprise a color difference value of < 0.015. In some embodiments, the glass substrate can comprise a color difference value of < 0.008.

在額外的實施例中，玻璃基底可以包含0.95到3.23的R_x O/Al₂ O₃ 值，其中R是Li、Na、K、Rb、Cs中的任何一個或多個，x是2。在進一步地實施例中，玻璃基底可以包含1.18到5.68的R_x O/Al₂ O₃ 值，其中R是Li、Na、K、Rb、Cs中的任何一個或多個且x是2，或R是Zn、Mg、Ca、Sr或Ba中任何一個或多個且x是1。在進一步地實施例中，玻璃基底可以包含-4.25到4.0的R_x O – Al₂ O₃ – MgO值，其中R是Li、Na、K、Rb、Cs中的任何一個或多個，x是2。在進一步地實施例中，玻璃基底可以包含約66 mol %到約78 mol%之間的SiO₂ 、約4 mol%到約11 mol%之間的Al₂ O₃ 、約4 mol%到約11 mol%之間的B₂ O₃ 、約0 mol%到約2 mol%之間的Li₂ O、約4 mol%到約12 mol%之間的Na₂ O、約0 mol%到約2 mol%之間的K₂ O、約0 mol%到約2 mol%之間的ZnO、約0 mol%到約5 mol%的MgO、約0 mol%到約2 mol%之間的CaO、約0 mol%到約5 mol%之間的SrO、約0 mol%到約2 mol%之間的BaO以及約0 mol%到約2 mol%之間的SnO₂ 。In additional embodiments, the glass substrate can comprise an R _x O/Al ₂ O ₃ value of 0.95 to 3.23, where R is any one or more of Li, Na, K, Rb, Cs, and x is 2. In further embodiments, the glass substrate can comprise an R _x O/Al ₂ O ₃ value of 1.18 to 5.68, where R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1. In a further embodiment, the glass substrate may comprise an R _x O - Al ₂ O ₃ - MgO value of -4.25 to 4.0, wherein R is any one or more of Li, Na, K, Rb, Cs, x is 2. In further embodiments, the glass substrate can comprise between about 66 mol % and about 78 mol % SiO ₂ , between about 4 mol % and about 11 mol % Al ₂ O ₃ , about 4 mol % to about 11 B ₂ O ₃ between mol%, about 0 mol% to about 2 mol% of Li ₂ O, about 4 mol% to about 12 mol% of Na ₂ O, about 0 mol% to about 2 mol Between K ₂ O, about 0 mol% to about 2 mol% of ZnO, about 0 mol% to about 5 mol% of MgO, about 0 mol% to about 2 mol% of CaO, about 0. From mol% to about 5 mol% of SrO, from about 0 mol% to about 2 mol% of BaO, and from about 0 mol% to about 2 mol% of SnO ₂ .

在額外的實施例中，玻璃物件可以包含約72 mol %到約80 mol%之間的SiO₂ 、約3 mol%到約7 mol%之間的Al₂ O₃ 、約0 mol%到約2 mol%之間的B₂ O₃ 、約0 mol%到約2 mol%之間的Li₂ O、約6 mol%到約15 mol%之間的Na₂ O、約0 mol%到約2 mol%之間的K₂ O、約0 mol%到約2 mol%之間的ZnO、約2 mol%到約10 mol%的MgO、約0 mol%到約2 mol%之間的CaO、約0 mol%到約2 mol%之間的SrO、約0 mol%到約2 mol%之間的BaO以及約0 mol%到約2 mol%之間的SnO₂ 。在具體實施例中，玻璃基底可以包括約60 mol %到約80 mol%之間的SiO₂ 、約0 mol%到約15 mol%之間的Al₂ O₃ 、約0 mol%到約15 mol%之間的B₂ O₃ 以及約2 mol%到約50 mol%之間的R_x O，其中，R是Li、Na、K、Rb、Cs中任何一個或多個且x是2，或者，R是Zn、Mg、Ca、Sr或Ba中任何一個或多個且x是1，且其中，Fe + 30Cr + 35Ni ＜約60ppm。In an additional embodiment, the glass article may comprise between about 72 mol SiO percent to about 80 mol _2, Al% between about 7 mol% to about ₃ mol ₂ O 3, from about 0 mol% to about 2 B ₂ O ₃ between mol%, about 0 mol% to about 2 mol% of Li ₂ O, about 6 mol% to about 15 mol% of Na ₂ O, about 0 mol% to about 2 mol Between Between K ₂ O, about 0 mol% to about 2 mol% of ZnO, about 2 mol% to about 10 mol% of MgO, about 0 mol% to about 2 mol% of CaO, about 0. Between mol% and about 2 mol% of SrO, between about 0 mol% and about 2 mol% of BaO, and between about 0 mol% and about 2 mol% of SnO ₂ . In a particular embodiment, the glass substrate may comprise between about 60 mol SiO percent to about 80 mol _2, between about 0 mol Al%% to about 15 mol ₂ O _3, from about 0 mol% to about 15 mol B ₂ O ₃ between % and R _x O between about 2 mol% and about 50 mol%, wherein R is any one or more of Li, Na, K, Rb, Cs and x is 2, or R is any one or more of Zn, Mg, Ca, Sr or Ba and x is 1, and wherein Fe + 30Cr + 35Ni < about 60 ppm.

LGP可以包含，例如透過離子交換而進行化學強化的玻璃。在該離子交換過程中，玻璃片材內位於或接近該玻璃片材表面的離子可以交換（例如從鹽浴中）較大的金屬離子。經由在該表面區域附近產生壓縮應力，該玻璃中較大離子的併入可強化該片材。可在該玻璃板的中央區域內產生相應的拉伸應力以平衡壓應力。The LGP may comprise, for example, a glass that is chemically strengthened by ion exchange. During the ion exchange process, ions within or adjacent to the surface of the glass sheet can exchange large metal ions (e.g., from a salt bath). The incorporation of larger ions in the glass enhances the sheet by creating compressive stresses near the surface area. Corresponding tensile stresses can be generated in the central region of the glass sheet to balance the compressive stress.

例如，可以透過將該玻璃浸沒於熔融鹽浴中長達預定時間段以進行離子交換。例示性鹽浴包含，但不限於KNO₃ 、LiNO₃ 、NaNO₃ 、RbNO₃ 及其組合。熔融鹽浴的溫度及處理時間段可不同。所屬技術領域具有通常知識者有能力根據期望的應用確定時間和溫度。經由非限制性範例，儘管可設想其他溫度和時間組合，但該熔融鹽浴的溫度的範圍在約400℃到約800℃之間，例如在約400℃到約500℃之間，且該預定時間段的範圍在約4小時到約24小時之間，例如在約4小時到約10小時之間。經由非限制性範例，該玻璃可浸入KNO₃ 浴中，例如，在約450℃的溫度下浸入約6小時，以獲取施加表面壓應力的K富集層。For example, ion exchange can be performed by immersing the glass in a molten salt bath for a predetermined period of time. Exemplary salt baths include, but are not limited to, KNO ₃ , LiNO ₃ , NaNO ₃ , RbNO _{3 ,} and combinations thereof. The temperature of the molten salt bath and the treatment time period may vary. Those of ordinary skill in the art have the ability to determine time and temperature based on the desired application. By way of non-limiting example, although other temperature and time combinations are contemplated, the temperature of the molten salt bath ranges between about 400 ° C to about 800 ° C, such as between about 400 ° C to about 500 ° C, and the predetermined The time period ranges from about 4 hours to about 24 hours, such as between about 4 hours and about 10 hours. By way of non-limiting example, the glass can be immersed in a KNO ₃ bath, for example, immersed at a temperature of about 450 ° C for about 6 hours to obtain a K-rich layer that exerts surface compressive stress.

在具體實施例中，LGP可以是透明的或實質上透明的。如本文中適用的術語「透明」意欲指示厚度接近1mm的LGP在該光譜（400-700nm）的可見區域內具有大於約85%的透射率。例如，例示性透明LGP在可見光範圍內可以具有大於約85%的透射率，諸如，大於約90%、大於約95%或大於約99%的透射率，其包含其間的所有範圍及子範圍。根據各種實施例所述，LGP的透射率小於可視區域中的約50%，諸如，小於約45%、小於約40%、小於約35%、小於約30%、小於約25%或小於約20%，包括所有範圍和這之間的子範圍。在具體實施例中，例示性LGP的透射率約大於紫外光（UV）區域中（100-400nm）的50%，例如大於約55%、大於約60%、大於約65%、大於約70%、大於約75%、大於約80%、大於約85%、大於約90%、大於約95%或大於約99%的透射率，其包含其間的所有範圍及子範圍。In a particular embodiment, the LGP can be transparent or substantially transparent. The term "transparent" as used herein is intended to mean that an LGP having a thickness of approximately 1 mm has a transmittance of greater than about 85% in the visible region of the spectrum (400-700 nm). For example, an exemplary transparent LGP can have a transmittance greater than about 85% in the visible range, such as greater than about 90%, greater than about 95%, or greater than about 99%, including all ranges and subranges therebetween. According to various embodiments, the transmittance of the LGP is less than about 50% in the visible region, such as less than about 45%, less than about 40%, less than about 35%, less than about 30%, less than about 25%, or less than about 20%. %, including all ranges and subranges between them. In a particular embodiment, the transmittance of the exemplary LGP is greater than about 50% (100-400 nm) in the ultraviolet (UV) region, such as greater than about 55%, greater than about 60%, greater than about 65%, greater than about 70%. Transmittance greater than about 75%, greater than about 80%, greater than about 85%, greater than about 90%, greater than about 95%, or greater than about 99%, including all ranges and subranges therebetween.

在一些實施例中，例示性透明LGP可以包含每個都小於1 ppm的Co、Ni和Cr。在一些實施例中，Fe的濃度＜約50ppm、＜約20ppm或＜約10ppm。在其他實施例中，Fe + 30Cr + 35Ni＜約60ppm、Fe + 30Cr + 35Ni＜約40ppm、Fe + 30Cr + 35Ni＜約20ppm或Fe + 30Cr + 35Ni＜約10ppm。根據額外的實施例所述，例示性透明LGP可以包含＜ 0.015的色差值，或在一些實施例中，＜ 0.008的色差值。In some embodiments, an exemplary transparent LGP can comprise Co, Ni, and Cr each less than 1 ppm. In some embodiments, the concentration of Fe is < about 50 ppm, < about 20 ppm, or < about 10 ppm. In other embodiments, Fe + 30Cr + 35Ni < about 60 ppm, Fe + 30Cr + 35Ni < about 40 ppm, Fe + 30Cr + 35Ni < about 20 ppm, or Fe + 30Cr + 35Ni < about 10 ppm. According to additional embodiments, the exemplary transparent LGP may comprise a color difference value of < 0.015, or in some embodiments, a color difference value of < 0.008.

LGP的光分散光線特性還可以受LGP材料的折射率影響。根據各種實施例所述，LGP的折射率範圍在約1.3到約1.8之間，諸如約1.35至約1.7之間、約1.4到約1.65之間、約1.45到約1.6之間、或約1.5到約1.55之間，其包含所有範圍及這些的子範圍。在一些實施例中，使用有機或無機材料對包含複數個光擷取特徵的LGP表面進行塗層，該有機或無機材料的折射率實質上與LGP類似。本文使用的術語「實質上類似」意欲表示兩個近似相等的值，例如，彼此的約10%的範圍內，諸如，彼此的約5%範圍內或在一些情況下，彼此的約2%的範圍內。例如，在折射率是1.5的情況下，實質上類似的折射率可以是在約1.35到約1.65之間。在一些實施例中，可以使用樹脂對粗糙的表面進行塗層，諸如使用Honeywell Corp的Accuglass T-11。根據非限制性實施例所述，該塗層可以包含適於降低各自光擷取特徵粗糙度的厚度。例如，在一些實施例中，該塗層可以符合各自表面的粗糙度，從而，該塗層（透過任何適當的沉積方式形成）的厚度實質上等於該表面的均方根（RMS）粗糙度。The light-dispersive light characteristics of LGP can also be affected by the refractive index of the LGP material. According to various embodiments, the refractive index of the LGP ranges from about 1.3 to about 1.8, such as between about 1.35 to about 1.7, between about 1.4 to about 1.65, between about 1.45 to about 1.6, or about 1.5 to Between about 1.55, it contains all ranges and sub-ranges of these. In some embodiments, the surface of the LGP comprising a plurality of light extraction features is substantially coated with an organic or inorganic material that is substantially similar in refractive index to the LGP. The term "substantially similar" as used herein is intended to mean two approximately equal values, for example, within about 10% of each other, such as within about 5% of each other or, in some cases, about 2% of each other. Within the scope. For example, where the refractive index is 1.5, a substantially similar refractive index can be between about 1.35 and about 1.65. In some embodiments, the rough surface may be coated with a resin, such as using Accuglass T-11 from Honeywell Corp. According to non-limiting embodiments, the coating may comprise a thickness suitable to reduce the roughness of the respective light extraction features. For example, in some embodiments, the coating can conform to the roughness of the respective surface such that the thickness of the coating (formed by any suitable deposition means) is substantially equal to the root mean square (RMS) roughness of the surface.

本文揭示的LGP可以用在各種顯示裝置中，該顯示裝置包含，但不限於LCD。根據本揭露的各種態樣所述，顯示裝置可以包含至少一個與至少一個光源耦接的揭示的LGP，該至少一個光源可以發射藍光，諸如UV光（約100-400nm）或近似UV的光（約300-400nm）。在一些實施例中，光源可以是LED光源。例示性LCD的光學部件可以進一步包含一反射器、一柔光罩、一個或多個稜鏡膜、一個或多個線性或反射偏光鏡、一薄膜晶體管（TFT）陣列、一液相晶體層和一個或多個濾色鏡等等。The LGP disclosed herein can be used in a variety of display devices including, but not limited to, an LCD. In accordance with various aspects of the present disclosure, a display device can include at least one disclosed LGP coupled to at least one light source that can emit blue light, such as UV light (about 100-400 nm) or near-UV light ( About 300-400 nm). In some embodiments, the light source can be an LED light source. The optical component of the exemplary LCD may further comprise a reflector, a diffuser, one or more germanium films, one or more linear or reflective polarizers, a thin film transistor (TFT) array, a liquid crystal layer, and One or more color filters and so on.

根據一個例示性實施例所述，從至少一個LED發出的光可以與LGP的邊緣光學性耦合，且可以擷取成整個發光表面上實質上均勻的強度。可選的反射偏光鏡可以將以非所需方向偏光的光線朝著反射器反射回，用於穿過LGP將其循環回，這可以用以將光線以單個偏向聚焦。穿過可選的反射偏光鏡的光線可以穿過第一稜鏡膜，且因此可以朝著使用者以向前方向聚焦光線，該第一稜鏡膜可以以高角度朝著反射偏光鏡反射光線，用於循環回光線。第二稜鏡膜可以與該第一稜鏡膜正交定位，且可以以同樣方式發揮功能，但其沿著正交軸發揮功能。可以應用第一線性偏光鏡，以使得單個偏向的光線得到透過。TFT陣列可以包含動態開關元件，其使得顯示器的每個子像素的電壓問題都可以得到解決。液相晶體層可以包含一電光材料，其結構圍繞電場的應用旋轉，使得任何穿過其的光線都可以進行偏極旋轉。隨後，光線穿過濾色鏡，該濾色鏡包含紅色、綠色和藍色濾色鏡組成的陣列，以產生所需顯示顏色。最後，可以使用第二線性偏光鏡過濾任何未旋轉的光線。According to an exemplary embodiment, light emitted from the at least one LED can be optically coupled to the edge of the LGP and can be drawn to substantially uniform intensity across the entire illuminated surface. An optional reflective polarizer can reflect light that is polarized in an undesired direction back toward the reflector for cycling back through the LGP, which can be used to focus the light in a single deflection. Light passing through the optional reflective polarizer can pass through the first diaphragm, and thus the light can be focused toward the user in a forward direction, the first diaphragm can reflect light at a high angle toward the reflective polarizer For looping back light. The second diaphragm can be positioned orthogonal to the first diaphragm and can function in the same manner, but it functions along the orthogonal axis. A first linear polarizer can be applied to allow a single deflected light to pass through. The TFT array can include dynamic switching elements that enable voltage issues for each sub-pixel of the display to be resolved. The liquid crystal layer may comprise an electro-optic material whose structure rotates around the application of the electric field such that any light passing therethrough can be deflected. The light then passes through a filter mirror that contains an array of red, green, and blue color filters to produce the desired display color. Finally, any unrotated light can be filtered using a second linear polarizer.

應當理解，各種揭示的實施例可涉及結合具體實施例所揭示的具體特徵、元件或步驟。應當理解，特定特徵、元件或步驟儘管與某一特定實施例的描述有關，但可與各種未圖示的組合或排列中的替代實施例互換或組合。It should be understood that the various disclosed embodiments may be embodied in the specific features, elements or steps disclosed in the specific embodiments. It is understood that the particular features, elements, or steps may be interchanged or combined with alternative embodiments in various combinations or arrangements not illustrated, although related to the description of a particular embodiment.

還應當理解，如本文中所用的術語「該(the)」、「一（a）」或「一(an)」是指「至少一個」，且不應限於「只有一個」，除非明確地指示相反的情況。因此，例如，參考「一光源」包含具有兩個或更多這種光源的實例，除非文中另外明確說明。同樣地，「複數個」或「陣列」意指「不止一個」。因此，「複數個光擷取特徵」包含兩個或兩個以上該等特徵，諸如，三個或三個以上該等特徵等等，「光導板陣列」包含兩個或兩個以上該等LGP，諸如，三個或三個以上該等LGP等等。It should also be understood that the terms "the", "a" or "an" as used herein mean "at least one" and should not be limited to "the only one" unless explicitly indicated. The opposite is true. Thus, for example, reference to "a light source" encompasses an example having two or more such light sources, unless the context clearly dictates otherwise. Similarly, "plural" or "array" means "more than one." Thus, "plurality of light extraction features" includes two or more such features, such as three or more such features, etc., "light guide array" contains two or more such LGPs , such as three or more of these LGPs and so on.

本文表達的範圍表示為從「約」一個具體值和/或到「約」另一具體值。當這種範圍表達出時，實例包含從一個具體值和/或到該另一具體值。同樣地，當該等值表示為近似值時，經由使用先行詞「約」，應當理解，該特定值形成另一態樣。應當進一步理解，該等範圍之各者的該端點和另一端點顯著相關，且和另一端點獨立相關。Ranges expressed herein are expressed as "about" a particular value and/or to "about" another particular value. When such a range is expressed, the instance includes from a particular value and/or to the other particular value. Similarly, when the equivalent value is expressed as an approximation, it is understood that the particular value forms another aspect. It should be further understood that the endpoint of each of the ranges is significantly related to the other endpoint and is independently associated with the other endpoint.

術語「實質上的」、「 實質上」及本文中所用的其變型意指描述的特徵與值或說明相同或近似相同。例如，「實質上平面的」表面意指表面為平面或近似平面。此外，如上定義，「實質上類似」意欲表示兩個值相等或近似相等。在一些實施例中，「實質上類似」可以表示約在彼此10%範圍內的值，諸如，約在彼此5%範圍內或約在彼此2%範圍內。The terms "substantially", "substantially" and variations thereof as used herein mean that the features described are the same or approximately the same as the values or the description. For example, a "substantially planar" surface means that the surface is planar or approximately planar. Moreover, as defined above, "substantially similar" is intended to mean that the two values are equal or approximately equal. In some embodiments, "substantially similar" may mean values that are within about 10% of each other, such as within about 5% of each other or about 2% of each other.

除非另外明確說明，本文所述任何方法不應意欲解釋為需要以特定次序執行其步驟。因此，方法請求項並不在其步驟之後實際列舉一個次序或該申請專利範圍或說明中明確提出該步驟不應限於特定的次序，其不意欲推測任意特定次序。Any method described herein should not be construed as requiring that its steps be performed in a particular order, unless specifically stated otherwise. Therefore, the method claims are not to be construed as an singular order, or the specific scope of the application.

儘管可以使用過度詞「包含」揭示具體實施例的各種特徵、元件或步驟，但應當理解，亦暗示了替代性實施例可以使用該過渡詞「包含」、「基本由...組成」來進行說明。因此，例如，對包含A+B+C的裝置進行暗示的替代性實施例包含包含其中裝置由A+B+C組成的實施例和其中裝置基本由A+B+C組成的實施例。The various features, elements or steps of the specific embodiments may be disclosed in the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; Description. Thus, for example, an alternative embodiment implying a device comprising A+B+C includes an embodiment in which the device consists of A+B+C and an embodiment in which the device consists essentially of A+B+C.

所屬技術領域具有通常知識者應當明白，可在不脫離本揭露的精神和範圍的情況下，對本揭露作出各種修改和變化。由於所屬技術領域具有通常知識者可以想到本揭露中併入本揭露的精神和實質的實施例的修改組合、子組合及變體，所以本揭露應當解釋為包含所附專利申請範圍和其同等物的範圍內的一切事物。It is apparent to those skilled in the art that various modifications and changes can be made in the present disclosure without departing from the spirit and scope of the disclosure. Modifications, sub-combinations and variations of the embodiments of the present disclosure, which are intended to be included in the present disclosure, are intended to cover the scope of the appended claims and the equivalents thereof Everything within the scope of the.

100‧‧‧照明裝置
105‧‧‧光導板（LGP）
110‧‧‧光源
115‧‧‧第一邊緣
117‧‧‧倒角
120‧‧‧反射器
125‧‧‧第二邊緣
130‧‧‧第三邊緣
135‧‧‧第四邊緣
140‧‧‧第五邊緣
145‧‧‧凹槽
150‧‧‧光擷取特徵
155‧‧‧第一主表面
160‧‧‧第二主表面
200‧‧‧照明裝置
205‧‧‧光導板（LGP）
210‧‧‧光源
215‧‧‧第一邊緣
220‧‧‧邊緣反射器
245‧‧‧凹槽
300‧‧‧照明裝置
305‧‧‧光導板（LGP）
310‧‧‧光源
350‧‧‧光擷取特徵
350a‧‧‧光擷取特徵
350b‧‧‧光擷取特徵
365‧‧‧附加光導板（LGP）
370‧‧‧補充光擷取特徵
375‧‧‧黏合材料100‧‧‧Lighting device
105‧‧‧Light Guide Plate (LGP)
110‧‧‧Light source
115‧‧‧ first edge
117‧‧‧Chamfering
120‧‧‧ reflector
125‧‧‧ second edge
130‧‧‧ third edge
135‧‧‧ fourth edge
140‧‧‧ fifth edge
145‧‧‧ Groove
150‧‧‧Light extraction features
155‧‧‧ first major surface
160‧‧‧Second major surface
200‧‧‧Lighting device
205‧‧‧Light Guide Plate (LGP)
210‧‧‧Light source
215‧‧‧ first edge
220‧‧‧Edge reflector
245‧‧‧ Groove
300‧‧‧Lighting device
305‧‧‧Light Guide Plate (LGP)
310‧‧‧Light source
350‧‧‧Light extraction features
350a‧‧‧Light extraction features
350b‧‧‧Light extraction features
365‧‧‧Additional Light Guide (LGP)
370‧‧‧Additional light extraction features
375‧‧‧Adhesive materials

可以結合以下圖示對下面的詳細說明作進一步瞭解。The following detailed description can be further understood in conjunction with the following drawings.

第 1A-1D 圖 圖解了包含根據本揭露各種實施例所述的照明裝置； Of FIG. 1A-1D illustrate various embodiments of the lighting device comprising embodiments of the present disclosure;

第 2 圖 圖解了根據本揭露特定實施例所述，包含光導板陣列的照明裝置； FIG 2 illustrates a particular embodiment of the illumination device, comprising a light guide plate array according to the present disclosure;

第 3A 圖 圖解了根據本揭露各種實施例，包含附加光導板的照明裝置； Figure 3A illustrates various embodiments of the present disclosure, additional illuminating device comprising a light guide plate;

第 3B 圖 圖解了根據本揭露套定實施例所述之例示性照明裝置的光輸出強度；以及 FIG. 3B illustrates an exemplary light intensity output of the lighting device of the embodiment of the sleeve according to a given embodiment of the present disclosure; and

第 4 圖 是根據本揭露的一些實施例，光輸出強度隨具有不同蝕刻表面的光導板之發射角變化的圖形說明。 FIG 4 is a first embodiment in accordance with some embodiments of the present disclosure, having a light output intensity over a graphical illustration of the emission angle of the light guide plate of different variations of the etched surface.

國內寄存資訊 (請依寄存機構、日期、號碼順序註記) 無Domestic deposit information (please note according to the order of the depository, date, number)

國外寄存資訊 (請依寄存國家、機構、日期、號碼順序註記) 無Foreign deposit information (please note in the order of country, organization, date, number)

(請換頁單獨記載) 無(Please change the page separately) No

200‧‧‧照明裝置 200‧‧‧Lighting device

205‧‧‧光導板(LGP) 205‧‧‧Light Guide Plate (LGP)

210‧‧‧光源 210‧‧‧Light source

215‧‧‧第一邊緣 215‧‧‧ first edge

220‧‧‧邊緣反射器 220‧‧‧Edge reflector

245‧‧‧凹槽 245‧‧‧ Groove

Claims (36)

一種照明裝置，包含複數個光導板，其中： （a）該複數個光導板中每個光導板的至少一第一邊緣與至少一個光源耦接；以及 （b）至少一個邊緣反射器沿著該複數個光導板中每個光導板的至少一部份邊緣設置。A lighting device comprising a plurality of light guiding plates, wherein: (a) at least one first edge of each of the plurality of light guiding plates is coupled to at least one light source; and (b) at least one edge reflector is along At least a portion of an edge of each of the plurality of light guide plates is disposed. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板的該第一邊緣包含一凹入部，且該至少一個光源與該凹入部耦接。The illuminating device of claim 1, wherein the first edge of at least one of the plurality of light guiding plates comprises a recess, and the at least one light source is coupled to the recess. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板的第一邊緣包含聯接兩個側邊緣的一倒角且該至少一個光源與該倒角耦接。The lighting device of claim 1, wherein the first edge of at least one of the plurality of light guiding plates comprises a chamfer that couples the two side edges and the at least one light source is coupled to the chamfer. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板包含光擷取特徵，該光擷取特徵設置在該光導板的一第一主表面上或設置在該光導板內鄰近該第一主表面的位置。The illumination device of claim 1, wherein at least one of the plurality of light guide plates comprises a light extraction feature disposed on a first major surface of the light guide plate or disposed adjacent to the light guide plate The position of the first major surface. 如請求項4之照明裝置，其中該光擷取特徵包含蝕刻、雷射損傷或壓印光擷取特徵。The illumination device of claim 4, wherein the light extraction feature comprises an etch, a laser damage, or an embossed light extraction feature. 如請求項4之照明裝置，其中將該光擷取特徵佈置成一圖樣，以在該至少一個該光導板的該第一主表面的整個表面上產生一實質上均勻的光輸出強度。The illumination device of claim 4, wherein the light extraction feature is arranged in a pattern to produce a substantially uniform light output intensity across the entire surface of the at least one first major surface of the light guide. 如請求項4之照明裝置，其中將該複數個光導板中兩個或兩個以上光導板的光擷取特徵佈置成一圖樣，以在該照明裝置的一發光表面的整個表面上產生一實質上均勻的光輸出強度。The illumination device of claim 4, wherein the light extraction features of the two or more light guide plates of the plurality of light guide plates are arranged in a pattern to produce a substantially on the entire surface of a light emitting surface of the illumination device Uniform light output intensity. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板包含玻璃材料、聚甲基丙烯酸甲酯材料或一微結構材料。The illuminating device of claim 1, wherein at least one of the plurality of light guiding plates comprises a glass material, a polymethyl methacrylate material or a microstructured material. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板包含一玻璃，該玻璃包含約50 mol%到約90 mol%的SiO₂ 、約0 mol%到約20 mol%的Al₂ O₃ 、約0 mol%到約20 mol%的B₂ O₃ 以及0 mol%到25 mol%的R_x O，其中，x是2，R從Li、Na、K、Rb、Cs及前述組合中選出，或其中x是1，R從Zn、Mg、Ca、Sr、Ba及前述組合中選出。The illuminating device of claim 1, wherein at least one of the plurality of light guiding plates comprises a glass comprising from about 50 mol% to about 90 mol% of SiO ₂ and from about 0 mol% to about 20 mol% of Al. ₂ O ₃ , from about 0 mol% to about 20 mol% of B ₂ O ₃ and from 0 mol% to 25 mol% of R _x O, wherein x is 2 and R is from Li, Na, K, Rb, Cs and the foregoing Selected from the combination, or wherein x is 1, and R is selected from the group consisting of Zn, Mg, Ca, Sr, Ba, and the foregoing combinations. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板包含一玻璃，該玻璃包含每個都少於約1ppm的Co、Ni和Cr。The illuminating device of claim 1, wherein at least one of the plurality of light guiding plates comprises a glass comprising less than about 1 ppm of Co, Ni and Cr each. 如請求項1之照明裝置，其中該複數個光導板中至少一個光導板包含一玻璃，該玻璃包含少於約0.015的一色差值。The illumination device of claim 1, wherein at least one of the plurality of light guides comprises a glass comprising a color difference of less than about 0.015. 如請求項1之照明裝置，其進一步包含至少一個附加光導板，該附加光導板定位成與該至少一個光源重疊對準。The illumination device of claim 1, further comprising at least one additional light guide plate positioned to overlap the at least one light source. 如請求項12之照明裝置，其中該至少一個附加光導板定位成與該複數個光導板中兩個或兩個以上的光導板重疊對準。The illumination device of claim 12, wherein the at least one additional light guide plate is positioned to overlap the two or more light guide plates of the plurality of light guide plates. 如請求項12之照明裝置，其中該至少一個附加光導板定位成實質上與該複數個光導板中所有的光導板都重疊對準。The illumination device of claim 12, wherein the at least one additional light guide plate is positioned to be substantially overlapping with all of the plurality of light guide plates. 如請求項12之照明裝置，其中該至少一個附加光導板包含一主表面上的補充光擷取特徵，該主表面面對該至少一個光源。The illumination device of claim 12, wherein the at least one additional light guide plate comprises a supplemental light extraction feature on a major surface, the major surface facing the at least one light source. 如請求項12之照明裝置，其中該至少一個附加光導板的一折射率實質上等於該複數個光導板的一折射率。The illumination device of claim 12, wherein a refractive index of the at least one additional light guide plate is substantially equal to a refractive index of the plurality of light guide plates. 如請求項12之照明裝置，其中與該至少一個附加光導板對準的一第一光源的一光輸出強度大於與該至少一個附加光導板對準的一第二光源的一光輸出強度。The illumination device of claim 12, wherein a light output intensity of a first light source aligned with the at least one additional light guide plate is greater than a light output intensity of a second light source aligned with the at least one additional light guide plate. 如請求項12之照明裝置，其中該複數個光導板中至少一個光導板包含光擷取特徵，該光擷取特徵設置成一圖樣，以在該光導板鄰近該至少一個光源處的一區域內產生增強光輸出。The illuminating device of claim 12, wherein at least one of the plurality of light guiding plates comprises a light extraction feature, the light extraction feature being disposed in a pattern to be generated in an area of the light guide plate adjacent to the at least one light source Enhance light output. 如請求項1之照明裝置，進一步包含用於將該至少一個光源的一光源輸出分離的一設備。The lighting device of claim 1, further comprising a device for separating a light source output of the at least one light source. 如請求項1之照明裝置，其中該複數個光導板佈置成二維陣列。The lighting device of claim 1, wherein the plurality of light guiding plates are arranged in a two-dimensional array. 如請求項16之照明裝置，其中該二維陣列具有範圍在約50mm到約10m之間的至少一個尺寸。The illumination device of claim 16, wherein the two-dimensional array has at least one dimension ranging between about 50 mm to about 10 m. 一種顯示裝置，包含如請求項1所述之照明裝置。A display device comprising the illumination device of claim 1. 一種照明裝置，包含： （a）一光導板，該光導板包含一第一邊緣和包含複數個光擷取特徵的一第一主表面； （b）至少一個光源，該至少一個光源與該第一邊緣耦接；以及 （c）至少一個邊緣反射器，該至少一個邊緣反射器沿著該光導板的至少一部份邊緣設置。An illumination device comprising: (a) a light guide plate comprising a first edge and a first major surface comprising a plurality of light extraction features; (b) at least one light source, the at least one light source and the first An edge coupling; and (c) at least one edge reflector disposed along at least a portion of an edge of the light guide. 如請求項23之照明裝置，其中該第一邊緣包含一凹入部，且該至少一個光源與該凹入部耦接。The illumination device of claim 23, wherein the first edge comprises a recess and the at least one light source is coupled to the recess. 如請求項23之照明裝置，其中該第一邊緣包含聯接兩個側邊緣的一倒角，且該至少一個光源與該倒角耦接。The illumination device of claim 23, wherein the first edge comprises a chamfer coupling the two side edges, and the at least one light source is coupled to the chamfer. 如請求項23之照明裝置，其中該光擷取特徵設置在該光導板的該第一主表面上或設置在該光導板內靠近該第一主表面的位置。The illumination device of claim 23, wherein the light extraction feature is disposed on the first major surface of the light guide plate or disposed within the light guide plate adjacent the first major surface. 如請求項23之照明裝置，其中該光擷取特徵包含蝕刻、雷射損傷或壓印光擷取特徵或前述組合。The illumination device of claim 23, wherein the light extraction feature comprises an etch, a laser damage or an embossed light extraction feature or a combination of the foregoing. 如請求項23之照明裝置，其中將該複數個光擷取特徵佈置成一圖樣，以在該光導板的該第一主表面的整個表面上產生實質上均勻的光輸出強度。The illumination device of claim 23, wherein the plurality of light extraction features are arranged in a pattern to produce a substantially uniform light output intensity over the entire surface of the first major surface of the light guide. 如請求項28之照明裝置，其中該複數個光導板佈置成一非均勻圖樣。The illumination device of claim 28, wherein the plurality of light guide plates are arranged in a non-uniform pattern. 如請求項23之照明裝置，其中該光導板包含玻璃材料、聚甲基丙烯酸甲酯材料或一微結構材料。The illuminating device of claim 23, wherein the light guiding plate comprises a glass material, a polymethyl methacrylate material or a microstructured material. 如請求項23之照明裝置，其中該光導板包含一玻璃，該玻璃包含約50 mol%到約90 mol%的SiO₂ 、約0 mol %到約20 mol %的Al₂ O₃ 、約0 mol%到約20 mol%的B₂ O₃ 以及0 mol%到25 mol%的R_x O，其中x是2，R從Li、Na、K、Rb、Cs及前述組合中選出，或其中x是1，R從Zn、Mg、Ca、Sr、Ba及前述組合中選出。The illuminating device of claim 23, wherein the light guiding plate comprises a glass comprising from about 50 mol% to about 90 mol% of SiO ₂ , from about 0 mol % to about 20 mol % of Al ₂ O ₃ , about 0 mol % to about 20 mol% of B ₂ O ₃ and 0 mol% to 25 mol% of R _x O, where x is 2, R is selected from Li, Na, K, Rb, Cs and combinations of the foregoing, or wherein x is 1, R is selected from the group consisting of Zn, Mg, Ca, Sr, Ba, and the foregoing combinations. 如請求項23之照明裝置，其中該光導板包含一玻璃，該玻璃包含每個都少於約1ppm的Co、Ni和Cr。The illuminating device of claim 23, wherein the light guiding plate comprises a glass comprising less than about 1 ppm of Co, Ni and Cr each. 如請求項23之照明裝置，其中該光導板包含一玻璃，該玻璃包含少於約0.015的一色差值。The illumination device of claim 23, wherein the light guide comprises a glass comprising a color difference of less than about 0.015. 如請求項23之照明裝置，其中該至少一個邊緣反射器除了未在與該至少一個光源耦接的該第一邊緣的一部份設置外，係沿著該光導板的所有邊緣設置。The illumination device of claim 23, wherein the at least one edge reflector is disposed along all edges of the light guide plate except that a portion of the first edge that is not coupled to the at least one light source is disposed. 如請求項23之照明裝置，其中該光導板具有範圍在約1 mm到約1 m之間的至少一個尺寸。The illumination device of claim 23, wherein the light guide plate has at least one dimension ranging between about 1 mm to about 1 m. 一種顯示裝置，包含如請求項23所述之照明裝置。A display device comprising the illumination device of claim 23.