TWI395904B - Light - emitting structure without light guide plate - Google Patents
Light - emitting structure without light guide plate Download PDFInfo
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- TWI395904B TWI395904B TW98141127A TW98141127A TWI395904B TW I395904 B TWI395904 B TW I395904B TW 98141127 A TW98141127 A TW 98141127A TW 98141127 A TW98141127 A TW 98141127A TW I395904 B TWI395904 B TW I395904B
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Description
本發明係有關於一種無導光板之發光構造,特別是指於背光模組或其他類似發光構造中,不使用導光板亦能由擴散板散射出均勻之發光面。 The invention relates to a light-emitting structure without a light guide plate, in particular to a backlight module or other similar light-emitting structure, in which a uniform light-emitting surface can be scattered by the diffuser plate without using a light guide plate.
目前一般使用於液晶顯示器之背光模組如中華民國專利第200825553號「背光模組」,其係包含至少一導光板、至少一光源設於導光板之一側、一擴散板設於導光板上方但不接觸導光板以及一混光空間,位於導光板與擴散板之間,使得從導光板出光面射出之光線可以在該混光空間內充分混光後,再由擴散板射出背光模組,然其缺點在於:背光模組的設計上不外乎使用導光板做為光源的導引媒介,但光源經過導光板會消耗能量,導致出光效果降低,如中小尺寸之側光式背光模組出光效率大多低於70%,監視器用之背光模組出光效率更只有略高於50%。 The present invention is generally used in a backlight module of a liquid crystal display, such as the "backlight module" of the Republic of China Patent No. 200825553, which comprises at least one light guide plate, at least one light source is disposed on one side of the light guide plate, and a diffusion plate is disposed above the light guide plate. However, the light guide plate and the light mixing space are not in contact with each other, and are located between the light guide plate and the diffusion plate, so that the light emitted from the light exit surface of the light guide plate can be fully mixed in the light mixing space, and then the backlight module is emitted by the diffusion plate. However, the disadvantage is that the design of the backlight module is nothing more than the use of the light guide plate as a guiding medium for the light source, but the light source consumes energy through the light guide plate, resulting in a reduced light-emitting effect, such as a small-sized side-lit backlight module. The efficiency is mostly lower than 70%, and the backlight efficiency of the backlight module used for the monitor is only slightly higher than 50%.
故有美國專利第7350951號「Planar light source device and display device using the same device」,其藉由改變底部光學反射板之結構而構成不使用導光板之發光構造,而增加出光量,然其缺點在於:雖然底部光學反射板之中段隆起,而能提高由擴散板中段折射出之光線照度,但藉由該光學反射板反射或散射出之光線會有不均勻之現象,導致由該擴散板折射出之光線產生之發光面之亮度不均,且若無加上光學元 件導引光線投射方向,則亦容易產生二側較亮,而中段較暗之現象。 Therefore, there is a "Planar light source device and display device using the same device", which is constructed by changing the structure of the bottom optical reflector to form a light-emitting structure that does not use a light guide plate, thereby increasing the amount of light, but the disadvantage is that Although the middle portion of the bottom optical reflector is raised to improve the illuminance of the light refracted by the middle portion of the diffuser, the light reflected or scattered by the optical reflector may be uneven, resulting in being reflected by the diffuser. The brightness of the light-emitting surface produced by the light is uneven, and if no optical element is added When the piece guides the direction of light projection, it is also easy to produce a phenomenon in which the two sides are brighter and the middle section is darker.
爰此,有鑑於習知發光構造的缺失,故本發明提供一種無導光板之發光構造,包括:一光學底板,係設置至少一隆起段,該隆起段則形成一隆起面;二光源,係位於鄰接該光學底板之二側,又該二光源之輻射半功率角為15度以下,而分別形成一光軸方向,該二光源之光軸方向係朝向該隆起面,又以該光軸方向為中心分別形成一光輻射場,該光輻射場則投射置該隆起面;一擴散板,係設置於該光學底板隆起段之隆起方向上。 Therefore, in view of the lack of the conventional light-emitting structure, the present invention provides a light-emitting structure without a light guide plate, comprising: an optical bottom plate provided with at least one raised portion, the raised portion forming a raised surface; Located on two sides adjacent to the optical bottom plate, and the radiation half power angles of the two light sources are 15 degrees or less, respectively forming an optical axis direction, the optical axis directions of the two light sources are toward the raised surface, and the optical axis direction is A light radiation field is respectively formed for the center, and the light radiation field projects the ridge surface; a diffusion plate is disposed in a bulging direction of the ridge portion of the optical floor.
上述光源之輻射半功率角為5度至15度。 The radiation source has a radiation half power angle of 5 to 15 degrees.
上述光源係為LED燈條。 The above light source is an LED light bar.
上述光學底板上設置一光學薄膜。 An optical film is disposed on the optical substrate.
上述光學底板隆起段之隆起面係設置複數個不規則形之缺槽。 The raised surface of the above-mentioned optical floor ridge section is provided with a plurality of irregular shaped vacancies.
上述光學底板隆起段之隆起面係設置複數個V形切槽。 The embossing surface of the above-mentioned optical floor ridge section is provided with a plurality of V-shaped slots.
上述光學底板二側分別連接一反射罩,該光源固接於該反射罩內,該擴散板則連接於該反射罩上。 A reflective cover is respectively connected to the two sides of the optical bottom plate, and the light source is fixed in the reflective cover, and the diffusing plate is connected to the reflective cover.
本發明具有下列之優點: The invention has the following advantages:
1.本發明不使用導光板之發光構造可以減輕發光構造之厚度與重量。 1. The present invention can reduce the thickness and weight of the light-emitting structure without using the light-emitting structure of the light guide plate.
2.本發明光學底板之隆起面上設置不規則形缺槽或V形切槽,而可使光線產生更為均勻之反射及散射,而使發光面之亮度更為均勻,也能夠提升發光構造之發光輝度。 2. The irregular surface of the optical base plate of the present invention is provided with an irregular shape groove or a V-shaped groove, so that the light can be more uniformly reflected and scattered, and the brightness of the light-emitting surface is more uniform, and the light-emitting structure can also be improved. Luminous brightness.
3.本發明使用輻射半功率角為15度以下之高指向性光源,並將光源之光軸方向朝向光學底板隆起段之隆起面,藉此使大部分光線皆投射至光學底板,增加散射出擴散板之光線,亦能大量提昇發光輝度。 3. The present invention uses a high directivity light source having a radiation half power angle of 15 degrees or less, and directs the optical axis direction of the light source toward the raised surface of the optical floor ridge section, thereby causing most of the light to be projected onto the optical base plate to increase scattering. The light from the diffuser can also greatly increase the brightness of the light.
(1)‧‧‧光學底板 (1)‧‧‧Optical backplane
(11)‧‧‧隆起段 (11) ‧ ‧ uplift
(111)‧‧‧隆起面 (111) ‧ ‧ raised surface
(12)‧‧‧缺槽 (12) ‧ ‧ missing slot
(13)‧‧‧V形切槽 (13)‧‧‧V-shaped grooving
(2)‧‧‧反射罩 (2) ‧‧‧reflector
(3)‧‧‧光源 (3) ‧‧‧Light source
(31)‧‧‧光軸方向 (31) ‧‧‧ optical axis direction
(32)‧‧‧光輻射場 (32) ‧‧‧Light field
(4)‧‧‧擴散板 (4) ‧‧‧Diffuser
(5)‧‧‧光學薄膜 (5) ‧‧‧Optical film
(A)‧‧‧框架 (A) ‧ ‧ frame
第一圖係為本發明配合框架實施之立體外觀圖。 The first figure is a three-dimensional appearance of the implementation of the frame of the present invention.
第二圖係為本發明配合框架實施之剖視圖。 The second drawing is a cross-sectional view of the implementation of the mating frame of the present invention.
第三圖係為本發明光軸方向平行指向隆起面之示意圖。 The third figure is a schematic view of the optical axis direction of the invention pointing in parallel to the ridge surface.
第四圖係為本發明光軸方向斜向指向隆起面之示意圖。 The fourth figure is a schematic view of the optical axis direction of the invention pointing obliquely toward the ridge surface.
第五圖係為本發明使用時光線均勻由擴散板散射出之示意圖。 The fifth figure is a schematic view of the light uniformly scattered by the diffusing plate when the invention is used.
第六圖係為本發明使用時光源之光輻射場投射至隆起面之示意圖。 The sixth figure is a schematic view of the light radiation field of the light source projected onto the ridge surface when the invention is used.
第七圖係為本發明隆起面設置光學薄膜之示意圖。 The seventh figure is a schematic view showing the arrangement of an optical film on the embossed surface of the present invention.
第八圖係為本發明隆起面設置不規則形缺槽之示意圖。 The eighth figure is a schematic view of the irregular shape of the raised surface of the present invention.
第九圖係為本發明隆起面設置V形切槽之示意圖。 The ninth drawing is a schematic view of the V-shaped slit formed in the ridge of the present invention.
請參閱第一圖及第二圖所示,本發明係為一種無導光板之發光構造,係將其組設於一框架(A)上實施,包括:一光學底板(1),係設置至少一隆起段(11),該隆起段(11)則形成一隆起面(111);二反射罩(2),係連接於該光學底板(1)之二側;二光源(3),係可為LED燈條,其位於鄰接該光學底板(1)之二側,又該二光源(3)之輻射半功率角〔RADIANT HALF-INTENSITY ANGLES〕為15度以下,而具有高指向性,且其最佳範圍則為5度至15度,該二光源(3)並分別形成一光軸方向(31),且該二光源(3)之光軸方向(31)係朝向該隆起面(111)[請參閱第三圖及第四圖,係為該二光源(3)位於不同高度,但其光軸方向(31)皆朝向該隆起面(111)之示意圖],又以該光軸方向(31)為中心分別形成一光輻射場(32)〔RADIATION FIELD〕,該光輻射場(32)則投射置該隆起面(111)[請參閱第六圖];一擴散板(4),係設置於該光學底板(1)隆起段(11)之隆起方向上,本實施例該擴散板(4)則連接於該反射罩(2)上。 Referring to the first and second figures, the present invention is a light-emitting structure without a light guide plate, which is assembled on a frame (A), comprising: an optical bottom plate (1), which is provided with at least a ridge portion (11), the ridge portion (11) forms a ridge surface (111); the two reflectors (2) are connected to the two sides of the optical bottom plate (1); the two light sources (3) are The LED light bar is located on two sides adjacent to the optical bottom plate (1), and the radiation source half power angle (RADIANT HALF-INTENSITY ANGLES) of the two light sources (3) is 15 degrees or less, and has high directivity, and The optimum range is 5 degrees to 15 degrees, and the two light sources (3) respectively form an optical axis direction (31), and the optical axis directions (31) of the two light sources (3) face the raised surface (111). [Refer to the third and fourth figures, the two light sources (3) are at different heights, but the optical axis direction (31) is directed toward the raised surface (111)], and the optical axis direction ( 31) forming a radiation field (32) (RADIATION FIELD) for the center, the light radiation field (32) projecting the raised surface (111) [see the sixth figure]; a diffusion plate (4), Set on the optical bottom plate (1) (11) Since the direction of the raised section, the present embodiment of the diffuser plate (4) is connected to the reflector (2).
使用時,請參閱第五圖及第六圖所示,由於該二光源(3)之輻射半功 率角為15度以下,故該二光源(3)具有高指向性,其形成之光軸方向(31)並朝向該隆起面(111),而該光輻射場(32)則投射置該隆起面(111),藉此降低直接由該擴散板(4)鄰近該二光源(3)位置處散射出之光線,避免該擴散板(4)二側之照度大於該擴散板(4)中段之照度,另外,該反射罩(2)可反射該二光源(3)非往該光學底板(1)投射之光線,亦能增加整體之發光輝度,而該光學底板(1)之隆起段(11)越靠近中段處與該擴散板(4)之距離越近,藉此可提高由該擴散板(4)中段散射出之光線,而能改善該光源(3)位於該光學底板(1)二側,導致該擴散板(4)二側散射出之發光輝度大於中段之現象,使光線由該擴散板(4)散射出後能形成均勻之發光面。 When using, please refer to the fifth and sixth figures, because the two light sources (3) radiate half work The angle of incidence is 15 degrees or less, so the two light sources (3) have high directivity, which forms an optical axis direction (31) and faces the raised surface (111), and the optical radiation field (32) projects the ridge. a surface (111), thereby reducing light scattered directly from the position of the diffusing plate (4) adjacent to the two light sources (3), preventing the illuminance on both sides of the diffusing plate (4) from being larger than the middle portion of the diffusing plate (4) Illumination, in addition, the reflector (2) can reflect the light emitted by the two light sources (3) not to the optical substrate (1), and can also increase the overall luminance, and the raised portion of the optical substrate (1) (11) The closer the distance to the diffusion plate (4) is, the closer it is to the middle portion, thereby increasing the light scattered by the middle portion of the diffusion plate (4), and the light source (3) can be improved on the optical substrate (1) On the side, the illuminating luminance of the diffusing plate (4) is greater than that of the middle portion, so that the light is scattered by the diffusing plate (4) to form a uniform illuminating surface.
請參閱第七圖所示,係可以電鍍、蒸鍍或濺鍍等薄膜成型方法於該隆起面(111)設置一光學薄膜(5),該光學薄膜(5)具有集光及增加光反射率之功效,提高由該擴散板(4)散射出之光線,提升發光輝度。 Referring to the seventh figure, an optical film (5) can be disposed on the raised surface (111) by a film forming method such as electroplating, vapor deposition or sputtering, and the optical film (5) has light collecting and increasing light reflectance. The effect is to increase the light scattered by the diffusing plate (4) and enhance the brightness of the light.
請參閱第八圖所示,係以噴砂法或珠擊法於該隆起面(111)設置複數個不規則形之缺槽(12),當光線投射至該隆起面(111)上之缺槽(12)後,能產生更為均勻之反射及散射,使由該擴散板(4)散射出之光線產生之發光面之亮度更為均勻。 Referring to the eighth figure, a plurality of irregular shaped notches (12) are arranged on the raised surface (111) by sandblasting or beading, and when the light is projected onto the raised surface (111), the missing groove is formed. After (12), a more uniform reflection and scattering can be produced, so that the brightness of the light-emitting surface generated by the light scattered by the diffusing plate (4) is more uniform.
請參閱第九圖所示,係於該隆起面(111)設置複數個V形切槽(13),使光線投射至該隆起面(111)時,其反射方向大都朝向該擴散板(4)方向,而能提高由該擴散板(4)散射出之光線,提升發光輝度。 Referring to the ninth figure, a plurality of V-shaped slots (13) are disposed on the raised surface (111), so that when the light is projected onto the raised surface (111), the reflection direction thereof is directed toward the diffusion plate (4). The direction is increased, and the light scattered by the diffusing plate (4) can be increased to increase the luminance of the light.
(1)‧‧‧光學底板 (1)‧‧‧Optical backplane
(11)‧‧‧隆起段 (11) ‧ ‧ uplift
(111)‧‧‧隆起面 (111) ‧ ‧ raised surface
(2)‧‧‧反射罩 (2) ‧‧‧reflector
(3)‧‧‧光源 (3) ‧‧‧Light source
(31)‧‧‧光軸方向 (31) ‧‧‧ optical axis direction
(4)‧‧‧擴散板 (4) ‧‧‧Diffuser
(A)‧‧‧框架 (A) ‧ ‧ frame
Claims (7)
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TW201333543A (en) | 2012-02-15 | 2013-08-16 | 隆達電子股份有限公司 | Lighting apparatus and optical reflection plate thereof |
CN110440179B (en) * | 2019-08-02 | 2021-05-18 | 济南三星灯饰有限公司 | Double-reflection characteristic distributed cross light guide system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5453855A (en) * | 1992-12-15 | 1995-09-26 | Koito Manufacturing Co., Ltd. | Liquid crystal display device backlit by LED's coupled to printed circuit board |
TW200636353A (en) * | 2005-04-01 | 2006-10-16 | Chi Lin Technology Co Ltd | Backlight module without light guide plate and diffuser |
TW200728851A (en) * | 2006-01-20 | 2007-08-01 | Hon Hai Prec Ind Co Ltd | Backlight module |
US7350951B2 (en) * | 2003-06-16 | 2008-04-01 | Mitsubishi Denki Kabushiki Kaisha | Planar light source device and display device using the same device |
TW200839414A (en) * | 2007-01-24 | 2008-10-01 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Optoelectric device |
CN101495802A (en) * | 2006-07-28 | 2009-07-29 | Tir科技公司 | Illumination module with similar heat and light propagation directions |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5453855A (en) * | 1992-12-15 | 1995-09-26 | Koito Manufacturing Co., Ltd. | Liquid crystal display device backlit by LED's coupled to printed circuit board |
US7350951B2 (en) * | 2003-06-16 | 2008-04-01 | Mitsubishi Denki Kabushiki Kaisha | Planar light source device and display device using the same device |
TW200636353A (en) * | 2005-04-01 | 2006-10-16 | Chi Lin Technology Co Ltd | Backlight module without light guide plate and diffuser |
TW200728851A (en) * | 2006-01-20 | 2007-08-01 | Hon Hai Prec Ind Co Ltd | Backlight module |
CN101495802A (en) * | 2006-07-28 | 2009-07-29 | Tir科技公司 | Illumination module with similar heat and light propagation directions |
TW200839414A (en) * | 2007-01-24 | 2008-10-01 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Optoelectric device |
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