技术领域technical field
本发明涉及液晶显示器（Liquid Crystal Display,LCD）领域，特别涉及LCD背光模组中的导光板。The invention relates to the field of liquid crystal displays (Liquid Crystal Display, LCD), in particular to a light guide plate in an LCD backlight module.
背景技术Background technique
在LCD显像中，因为液晶本身不发光，需要由置于LCD下的背光模组（Back LightUnit, BLU）提供背光光源，通过底部光源发光后通过上层的液晶，产生不同的图像。一般情况下，使用者在使用的过程中，都是正面面对设备本身，需要调节亮度时，只能够通过增强发光强度来提高亮度，但实际中，背光光源耗电量往往是设备耗电最为严重的部分，提高发光强度会降低设备的续航能力；在另一个方面，背光光源发出的光则是通过透光面向外各个方向发出光线，用很大一部分的光线不能够被使用者接收，造成浪费。In LCD imaging, because the liquid crystal itself does not emit light, the backlight unit (BLU) placed under the LCD needs to provide a backlight light source. After the bottom light source emits light, it passes through the upper liquid crystal to produce different images. Under normal circumstances, the user faces the device itself in the process of using it. When the brightness needs to be adjusted, the brightness can only be increased by increasing the luminous intensity. However, in practice, the power consumption of the backlight source is often the most power consumption of the device. In the serious part, increasing the luminous intensity will reduce the battery life of the device; on the other hand, the light emitted by the backlight source is emitted in all directions through the light-transmitting surface, and a large part of the light cannot be received by the user, resulting in waste.
发明内容Contents of the invention
本发明要解决的问题是，如何提高设备发出光线的有效利用率，并且减少背光模组的发光能耗。The problem to be solved by the present invention is how to improve the effective utilization rate of the light emitted by the device and reduce the light-emitting energy consumption of the backlight module.
为了解决上述问题，本发提供了一种导光板，包括入射面、反射面和出射面，所述的入射面设置在导光板一侧，用于引入光源，所述的出射面设置在导光板上表面，用于将光线从导光板内部向外透出，所述的反射面设置在导光板上除入射面和出射面外的其他表面，用于将光线限制在导光板内，所述的出射面上设置有向外凸起的聚光结构。导光板是将设置在一侧的光源产生的光线引导到需要发光的面进行光线发出的结构，通过在透光面上设置有向外凸起的聚光结构，即聚光结构能够改变原有的光的射出角度，即通过增加部分光线的出射角度或者是入射角度，来改变部分光线的轨迹，从而可以人为调节一部分的光线到特定的角度，以达到不提高背光强度的情况下，增加使用者接收到的光强。In order to solve the above problems, the present invention provides a light guide plate, including an incident surface, a reflection surface and an exit surface, the incident surface is set on one side of the light guide plate for introducing light sources, and the exit surface is set on the light guide plate The upper surface is used to transmit light from the inside of the light guide plate, and the reflective surface is arranged on other surfaces of the light guide plate except the incident surface and the exit surface, and is used to confine the light in the light guide plate. An outwardly protruding light-gathering structure is provided on the exit surface. The light guide plate is a structure that guides the light generated by the light source on one side to the surface that needs to emit light for light emission. By setting the light-concentrating structure that protrudes outward on the light-transmitting surface, the light-concentrating structure can change the original The exit angle of the light, that is, by increasing the exit angle or incident angle of part of the light, to change the trajectory of part of the light, so that part of the light can be artificially adjusted to a specific angle, so as to increase the use of the backlight without increasing the intensity of the backlight. The received light intensity.
聚光结构为条状聚光结构。条状的聚光结构能够更容易进行加工，另外聚光效果更好，不会因聚光效果而导致显像上的效果减弱。The light concentrating structure is a strip light concentrating structure. The strip-shaped light-gathering structure can be processed more easily, and the light-gathering effect is better, and the imaging effect will not be weakened due to the light-gathering effect.
聚光结构为表面光滑的凸起。凸条表面的光滑结构，一方面能够使得聚光效果有一个平稳的过渡，不会出现一定的角度而造成聚光效果具有边界效应，影响成像效果，另一方面能够防止运输过程中容易造成损坏。The light-gathering structure is a bump with a smooth surface. The smooth structure on the surface of the convex strips, on the one hand, can make the concentrating effect have a smooth transition, and will not cause a certain angle to cause the concentrating effect to have a boundary effect, which affects the imaging effect; on the other hand, it can prevent easy damage during transportation .
聚光结构为U型凸起。聚光结构为U型凸起，一方面单个凸起能够更好进行光角度的设计控制，另外更利于加工。The light concentrating structure is a U-shaped protrusion. The light-concentrating structure is a U-shaped protrusion. On the one hand, a single protrusion can better control the design of the light angle, and on the other hand, it is more convenient for processing.
聚光结构为圆弧结构。圆弧结构的凸起更小于U型结构，一方面能够减少导光板的厚度，另外圆弧的建模参数以及设计难度更小，设计成本更低。The light concentrating structure is a circular arc structure. The protrusion of the arc structure is smaller than that of the U-shaped structure. On the one hand, the thickness of the light guide plate can be reduced. In addition, the modeling parameters and design of the arc are less difficult and the design cost is lower.
圆弧半径为10-500μm。在此范围内，聚光效果能够有一定增强，并且不会对现象效果造成影响。The arc radius is 10-500 μm. Within this range, the light-gathering effect can be enhanced to a certain extent, and the phenomenon effect will not be affected.
聚光结构数量不少于2个。聚光结构越多，聚光效果更温和，现象效果越好。The number of light-gathering structures is not less than 2. The more light-gathering structures, the gentler the light-gathering effect and the better the phenomenon.
聚光结构间具有间隙。聚光结构间的缝隙主要是为了让一定的非修正光（即不通过透光结构）的光通过透光面，目的是为了显像更加温和，仅仅只对一部分的光进行修正，减少了一部分不被使用者接收的光线，但是从非正常使用的位置如设备的偏侧边进行使用，仍然能够接收图像，但图像相对与正面相比，会相对较暗，这样能够保证现象的整体性以及针对性。There are gaps between the light concentrating structures. The gap between the light-condensing structures is mainly to allow certain non-corrected light (that is, not passing through the light-transmitting structure) to pass through the light-transmitting surface. The purpose is to make the image more gentle, and only correct part of the light, reducing a part Light that is not received by the user, but when used from an abnormal position such as the side of the device, the image can still be received, but the image will be relatively dark compared with the front, so as to ensure the integrity of the phenomenon and targeted.
间隙长度小于或等于200μm。间隙长度在这个范围内能够保持一部分非修正光通过，保证显像的温和以及整体性。The gap length is less than or equal to 200 μm. The length of the gap within this range can keep a part of the non-corrected light passing through, ensuring the mildness and integrity of the imaging.
聚光结构的凸起高度为0.1-25μm。凸起高度乙方先限制了导光板的厚度，另一方又限制了聚光结构的调角能力，在限定的范围能，能够既满足常规的导光板厚度要求，又满足调角能力。The protrusion height of the light concentrating structure is 0.1-25 μm. The protrusion height B firstly limits the thickness of the light guide plate, and on the other hand limits the angle adjustment ability of the light-concentrating structure. Within the limited range, it can meet both the thickness requirements of the conventional light guide plate and the angle adjustment ability.
本发明具有以下的有益效果：The present invention has following beneficial effect:
1.减少电能消耗。通过将部分无用光通过聚光结构聚拢到使用者能够接收的角度范围，提高了光的利用率，从而减少电能的消耗。1. Reduce power consumption. By gathering part of the useless light to an angle range that can be received by the user through the light concentrating structure, the utilization rate of light is improved, thereby reducing the consumption of electric energy.
2.结构简单。仅仅只需要对导光板的透光面进行改造即可，无需对背光模组中的其他结构进行修改，极大节约了设计成本和制造成本，提高了经济效益。2. Simple structure. It is only necessary to modify the light-transmitting surface of the light guide plate, without modifying other structures in the backlight module, which greatly saves design cost and manufacturing cost, and improves economic benefits.
3.显像温和。通过修正光与非修正光之间的配合，提高了使用者正常使用过程中的亮度，另外也保持其他角度的显像效果，保证整体的显像效果。3. Gentle imaging. Through the cooperation between the corrected light and the non-corrected light, the brightness during the normal use of the user is improved, and the imaging effect at other angles is also maintained to ensure the overall imaging effect.
4.过渡温和。因为透光结构采用的是光滑的聚光结构，所以在较亮区域与较暗区域之内过渡较为均匀，不易产生不适。4. The transition is mild. Because the light-transmitting structure adopts a smooth light-gathering structure, the transition between the brighter area and the darker area is relatively uniform, and it is not easy to cause discomfort.
5.容易清洁。在生产过程中，因为不同聚光结构之间具有一定间隙，能够方便清除附着的污物，降低清洁成本，保证产品成品率。5. Easy to clean. In the production process, because there is a certain gap between different concentrating structures, it is easy to remove the attached dirt, reduce cleaning costs, and ensure product yield.
6.抗压能力强，因为聚光结构为U型结构，所以在受到外力的剐蹭或者是压力的过程中，不容易损坏，有利于生产加工和提高设备使用寿命。6. Strong pressure resistance, because the light-concentrating structure is a U-shaped structure, it is not easy to be damaged when it is scratched or pressured by external forces, which is conducive to production and processing and improves the service life of the equipment.
附图说明Description of drawings
图1为本发明一种导光板的聚光结构剖面工作示意图。FIG. 1 is a working schematic diagram of a cross-section of a light-gathering structure of a light guide plate according to the present invention.
图2为本发明一种导光板的立体示意图。FIG. 2 is a schematic perspective view of a light guide plate of the present invention.
附图说明如下：1为导光板，11为入射面，12为反射面，13为出射面，2聚光结构。The description of the drawings is as follows: 1 is a light guide plate, 11 is an incident surface, 12 is a reflective surface, 13 is an outgoing surface, and 2 is a light concentrating structure.
具体实施方式detailed description
下面结合附图对本发明的较佳实施例进行详细阐述，以使本发明的有点和特征更易被本领域技术人员理解，从而对本发明的保护范围作出更为清楚的界定。The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
实施例1Example 1
如附图1和附图2所示，导光板1的底部为入射面11，通过将光源设置在入射面11边缘，光源发出的光线能够通过入射面11进入导光板1内部。导光板1两侧、顶部以及底部均为反射面12，反射面12能够将照射到该面的光线以一定的角度进行反射。导光板1上部为透光面，透光面能够使得内部的光线透出。As shown in Figures 1 and 2, the bottom of the light guide plate 1 is the incident surface 11. By placing the light source on the edge of the incident surface 11, the light emitted by the light source can enter the light guide plate 1 through the incident surface 11. Both sides, the top and the bottom of the light guide plate 1 are reflective surfaces 12, and the reflective surface 12 can reflect the light irradiated on the surface at a certain angle. The upper part of the light guide plate 1 is a light-transmitting surface, and the light-transmitting surface can allow internal light to pass through.
在透光面上设置有多个条状的圆弧形凸起，即聚光结构2，不同的聚光结构2之间等距离纵向排列，聚光结构2之间的间距为150μm。圆弧形凸起的高度为10μm，圆弧半径为250μm。A plurality of strip-shaped arc-shaped protrusions, ie light-concentrating structures 2 , are arranged on the light-transmitting surface. Different light-concentrating structures 2 are arranged longitudinally at equal distances, and the distance between the light-concentrating structures 2 is 150 μm. The height of the arc-shaped protrusion is 10 μm, and the radius of the arc is 250 μm.
在工作过程中，光源将光线通过导光板1上的的入射面11送入导光板1内，光线在导光板1内通过反射面12的多次反射，最终在出射面13射出。在出射面13上，部分光线会经过聚光结构2，经过聚光结构2时，光线会向圆弧的凸起最高点方向进行小角度的修正，角度的修正的大小是根据圆弧的半径以及圆弧的高度进行调节。经过修正的部分光线会向出射面13的中部靠近，从而使光线更加聚集在出射面13正面，而经过聚光结构2之间的间隙的光线则为为修正光线，角度不变地穿过出射面13，正常向各个方向进行散射。通过两者的配合，出射面13正面的光线强度会得到加强，并且出射面13两侧的光线强度衰减平滑，不影响使用效果。During the working process, the light source sends light into the light guide plate 1 through the incident surface 11 on the light guide plate 1 , and the light is reflected multiple times on the reflective surface 12 in the light guide plate 1 , and finally exits on the exit surface 13 . On the exit surface 13, part of the light will pass through the light-condensing structure 2. When passing through the light-condensing structure 2, the light will be corrected at a small angle in the direction of the convex highest point of the arc. The size of the angle correction is based on the radius of the arc. And adjust the height of the arc. The corrected part of the light will approach the middle of the exit surface 13, so that the light is more concentrated on the front of the exit surface 13, and the light passing through the gap between the light-condensing structures 2 is the corrected light, which passes through the exit at an unchanged angle. Surface 13, normally scatters in all directions. Through the cooperation of the two, the light intensity on the front side of the exit surface 13 will be enhanced, and the light intensity on both sides of the exit surface 13 will attenuate smoothly, without affecting the use effect.
在间隙允许范围内，减少间隙长度，能够提高修正效果。Within the allowable range of the gap, reducing the gap length can improve the correction effect.
上面结合附图对本发明的实施方式作了详细说明，但是本发明并不限于上述实施方式，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. kind of change.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002419.4ACN106772772A (en) | 2017-01-03 | 2017-01-03 | A kind of light guide plate |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002419.4ACN106772772A (en) | 2017-01-03 | 2017-01-03 | A kind of light guide plate |
| Publication Number | Publication Date |
|---|---|
| CN106772772Atrue CN106772772A (en) | 2017-05-31 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710002419.4APendingCN106772772A (en) | 2017-01-03 | 2017-01-03 | A kind of light guide plate |
| Country | Link |
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| CN (1) | CN106772772A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080046313A (en)* | 2006-11-22 | 2008-05-27 | 희성전자 주식회사 | Light guide plate structure of side type backlight device |
| CN101446405A (en)* | 2007-11-27 | 2009-06-03 | 美蓓亚株式会社 | Spread illuminating apparatus |
| JP2010020132A (en)* | 2008-07-11 | 2010-01-28 | Goyo Paper Working Co Ltd | Abrasion resistant lens sheet |
| CN101776246A (en)* | 2010-01-28 | 2010-07-14 | 苏州奥浦迪克光电技术有限公司 | Light guide plate and illuminator and back light module comprising same |
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| CN206960694U (en)* | 2017-01-03 | 2018-02-02 | 深圳市宝明科技股份有限公司 | A kind of light guide plate of composite construction |
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| CB02 | Change of applicant information | Address after:518000 room 3001, building 2, Huilong business center, North Station community, Minzhi street, Longhua District, Shenzhen City, Guangdong Province Applicant after:SHENZHEN BAOMING TECHNOLOGY Ltd. Address before:518000 building F, baoyunda factory building, B District, dashuitian Industrial Zone, dashuitian community, Guanlan street, Longhua New District, Shenzhen City, Guangdong Province Applicant before:SHENZHEN BAOMING TECHNOLOGY Ltd. | |
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20170531 |