WO2015007086A1 - Backlight module and liquid crystal display device using same - Google Patents
Backlight module and liquid crystal display device using same Download PDFInfo
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- WO2015007086A1 WO2015007086A1 PCT/CN2014/071420 CN2014071420W WO2015007086A1 WO 2015007086 A1 WO2015007086 A1 WO 2015007086A1 CN 2014071420 W CN2014071420 W CN 2014071420W WO 2015007086 A1 WO2015007086 A1 WO 2015007086A1
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- backlight module
- reflective
- module according
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- plate
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
Abstract
Provided are a backlight module (20) and a liquid crystal display device using the backlight module (20). The backlight module (20) comprises a backlight source (40). The backlight source (40) comprises a plate body (21) installed with a source light (23), and a reflector (24, 25) disposed on at least one longitudinal edge of the plate body (21). A cross section of the reflector (24, 25) is a right trapezoid. An upper base (33) of the right trapezoid is an inner side surface of the reflector (24, 25), a lower base (34) is an outer side surface of the reflector (24, 25), and a rectangular waist (30) is a surface on which the reflector (24, 25) contacts with the plate body (21), and an oblique waist (31) is a reflective slope (26) of the reflector (24, 25). The backlight module (20) can enable light emitted by the source light (23) to completely enter a light guide plate (27), so as to avoid the problems of light leakage and lower optical efficiency.
Description
背光模组和使用其的液晶显示装置 Backlight module and liquid crystal display device using same
技术领域 Technical field
本发明涉及一种液晶显示部件， 特别是一种背光模组。 本发明还涉及使用这 种背光模组的液晶显示装置。 背景技术 The invention relates to a liquid crystal display component, in particular to a backlight module. The present invention also relates to a liquid crystal display device using such a backlight module. Background technique
薄膜晶体管应显示器 （即， TFT-LCD ) 是当前平板显示的主要类型之一， 其 在电子设备中得到了广泛的应用。 由于液晶本身不发:光， 为了显示必须要配置背 光模组。 图 1示意性地显示了在现有技术中的薄膜晶体管显示器的结构， 侧入式 背光模组】00发出光， 经导光板 102传递到显示区以进行显示。 Thin film transistor display displays (i.e., TFT-LCD) are one of the main types of current flat panel displays, and are widely used in electronic devices. Since the liquid crystal itself does not emit light, the backlight module must be configured for display. Fig. 1 schematically shows the structure of a thin film transistor display in the prior art, in which a side-in backlight module emits light, which is transmitted through a light guide plate 102 to a display area for display.
背光模组 100包括安装在铝挤 103内的发光二极管 即， LED) 灯条 104, 在使 ^过程中， 灯条 104照射到铝挤 103和导光板 102之间的间隙中散射光会散 射出去而出现漏光现象， 这也会造成光效率低下。 发明内容 The backlight module 100 includes a light-emitting diode (LED) light strip 104 mounted in the aluminum extrusion 103. During the process, the light strip 104 is irradiated to the gap between the aluminum extrusion 103 and the light guide plate 102, and the scattered light is scattered. Light leakage occurs, which also causes light inefficiency. Summary of the invention
针对现有技术中所存在的上述技术问题， 本发明提出了一种背光模组， 这种 背光模组能够使光源灯发出的光完全进入导光板中， 避免了漏光和光效率低下的 问题。 此外， 本发明还涉及使用这种背光模组的液晶显示装置。 In view of the above technical problems existing in the prior art, the present invention provides a backlight module capable of completely entering light emitted from a light source lamp into a light guide plate, thereby avoiding problems of light leakage and low light efficiency. Further, the present invention relates to a liquid crystal display device using such a backlight module.
根据本发明的第一方面， 提出了一种背光模组， 包括背光源， 该背:光源含有 安装有光源灯的板体， 和设置在板体的至少一个纵向边缘处的反光板。 According to a first aspect of the present invention, a backlight module is provided, comprising a backlight, the light source comprising a plate body on which the light source lamp is mounted, and a light reflecting plate disposed at at least one longitudinal edge of the plate body.
根据本发明的背光模组， 反光板能够避免散射光射出背光模组而出现漏光现 象。 此外， 反光板还能够反射部分散射光， 提高光的使用率。 According to the backlight module of the present invention, the reflector can prevent the light from leaking out of the backlight module to cause light leakage. In addition, the reflector can also reflect part of the scattered light, increasing the light usage.
在一个实施倒中， 反光板的横截面为直角梯形， 其中直角梯形的上底为反光 板的内惻面， 下底为反光板的夕卜侧面， 直角腰为反光板与板体相接触的面， 斜腰 为反光板的反光斜面。 从反光板的橫截面来看， 直角梯形的斜腰与下底之间的夹 角在 25°-35°之间。这种结构的反光斜面能够直接将射到反光斜面上的散射光反射 到导光板中， 从而能完全避免漏光问题， 并且由此提高光的使 ^率。 在一个优选 的实施例中， 在反光斜面上涂覆有反光层。 反光层用于进一步提高散射光的反射 效率。 在一个优选的实施例中， 在板体的两个纵向边缘处均设置有反光板， 两个
反光板的内侧面和板体一起构成过渡区。 In one implementation, the cross section of the reflector is a right-angled trapezoid, wherein the upper base of the right-angled trapezoid is the inner surface of the reflector, the lower base is the side of the reflector, and the right-angled waist is the reflector with the plate. The slanting waist is the reflective bevel of the reflector. From the cross section of the reflector, the angle between the oblique waist of the right angle trapezoid and the lower base is between 25° and 35°. The reflective bevel of this structure can directly reflect the scattered light that is incident on the reflective slope into the light guide plate, thereby completely avoiding the light leakage problem and thereby increasing the light transmittance. In a preferred embodiment, the reflective bevel is coated with a reflective layer. The reflective layer is used to further increase the reflection efficiency of the scattered light. In a preferred embodiment, a reflector is provided at both longitudinal edges of the plate, two The inner side of the reflector and the panel together form a transition zone.
在一个的实施例中， 光源灯的光心处于过渡区内。 背光模组还包括导光板， 两反光板之间的距离等干或小于导光板侧面的高度。 这些结构特征保证了光源灯 发出的光经直接射入和斜面反射后能够完全进入导光板中， 从而提高了光效率。 在一个优选的实施例中， 从反光板的横截面来看， 光源灯的光心处于两个直角梯 形上底的斜腰端点之间的连线的中点。 这能最大程度地提高散射光的反射率。 In one embodiment, the optical center of the light source lamp is in the transition zone. The backlight module further includes a light guide plate, and the distance between the two reflectors is dry or smaller than the height of the side of the light guide plate. These structural features ensure that the light emitted by the light source lamp can completely enter the light guide plate after direct injection and oblique reflection, thereby improving light efficiency. In a preferred embodiment, from the cross-section of the reflector, the center of the light source is at the midpoint of the line between the oblique waist ends of the two right-angled ladders. This maximizes the reflectivity of the scattered light.
在一个实施倒中， 反光板的横截面为直角三角形， 其中直角三角形第一直角 边为反光板与板体相接触的面， 第二直角边为反光板的外侧面， 斜边为反光板的 反光斜面。 在一个优选的实施例中， 在板体的两个纵向边缘上均设置有反光板。 这种结构的反光板也能够将散射光反射到导光板中， 避免了漏光。 In one embodiment, the cross section of the reflector is a right triangle, wherein the first right angle of the right triangle is the surface where the reflector is in contact with the board, the second right side is the outer side of the reflector, and the oblique side is the reflector. Reflective bevel. In a preferred embodiment, a retroreflective sheeting is provided on both longitudinal edges of the panel. The reflector of this structure is also capable of reflecting scattered light into the light guide plate to avoid light leakage.
在一个实施倒中， 反光板与板体一体成型。 这免去了反光板预板体之间的装 配过程， 降低了生产成本。 In one implementation, the reflector is integrally formed with the panel. This eliminates the assembly process between the reflector pre-boards and reduces production costs.
在一个实施倒中， 光源灯为发光二极管， 发光二极管的厚度尺寸是过渡区的 深度尺寸的 ·倍， 并且发光二极管以其厚度尺寸的一半凸出过渡区的方式而安 装。 这种设 ^能够保证发光二极管处于最佳反射位置中。 In one implementation, the light source lamp is a light emitting diode having a thickness dimension that is twice the depth dimension of the transition region, and the light emitting diode is mounted in such a manner that half of its thickness dimension protrudes from the transition region. This setting ensures that the LED is in the optimum reflection position.
在一个具体的实施例中， 狭槽状框架为铝村。 铝的导热性能较好， 以提高背 光模组的散热性能。 In a specific embodiment, the slotted frame is an aluminum village. Aluminum has good thermal conductivity to improve the heat dissipation performance of the backlight module.
根据本发明的第二方面， 提出一种包括根据上文所述的背光模组的液晶显示 装置。 这种液晶显示装置在保证亮度的同时， 能够降低电流， 达到节能的目的。 According to a second aspect of the present invention, a liquid crystal display device comprising the backlight module according to the above is proposed. Such a liquid crystal display device can reduce the current while ensuring the brightness, thereby achieving the purpose of energy saving.
在本申请中， 梯形的上底规定为长度较短的底， 下底为长度较长的底。 梯形 上底的斜腰端点规定为上底与斜腰的交点。 反光板的内侧面为在装配状态中， 朝 向光源灯的侧面； 反光板的外侧面則为处于与内表面想反侧的面。 In the present application, the upper base of the trapezoid is defined as the bottom of the shorter length, and the lower base is the base of the longer length. The oblique waist end of the trapezoidal upper base is defined as the intersection of the upper base and the oblique waist. The inner side of the reflector is in the assembled state, facing the side of the light source lamp; the outer side of the reflector is on the opposite side of the inner surface.
与现有技术相比， 本发明的优点在于， 背光模组的背光源包括安装有光源灯 的板体， 和安装在板体的两个纵向边缘处的反光板。 反射板能够将散射光反射到 导光板中， 避免了漏光， 同时反射板还能将部分散射光反射到导光板中， 提高光 的利用率。 此外， 反光板的横截面为直角梯形， 其斜腰为反光板的反光斜面。 斜 腰与下底之间的夹角在 25°-35°之间。光源灯处于两个反光板的内侧面和板体一起 构成过渡区中。 这些结构特征保证了将散射光完全反射到导光板中， 并且避免了 漏光。 使用了这种背光模组的液晶显示装置也因此能够在保证亮度的同 ， 降低 电流， 达到节能的目的。
在下文中将基于实施例并参考^图来对本发明进行更详细的描述。 其中- 图 1是现有技术中的薄膜晶体管显示器的结构示意图； Compared with the prior art, the invention has the advantages that the backlight of the backlight module comprises a plate body on which the light source lamp is mounted, and a reflector plate installed at two longitudinal edges of the plate body. The reflector can reflect the scattered light into the light guide plate to avoid light leakage, and the reflector can also reflect part of the scattered light into the light guide plate to improve the utilization of light. In addition, the cross section of the reflector is a right-angled trapezoid, and the oblique waist is a reflective slope of the reflector. The angle between the oblique waist and the lower base is between 25° and 35°. The light source lamp is in the transition zone between the inner side of the two reflectors and the plate body. These structural features ensure complete reflection of the scattered light into the light guide and avoid light leakage. The liquid crystal display device using the backlight module can also reduce the current while ensuring the brightness, thereby achieving the purpose of energy saving. The invention will be described in more detail hereinafter based on the embodiments and with reference to the drawings. 1 is a schematic structural view of a thin film transistor display in the prior art;
图 2是根据本发明的背光模组的结构示意图； 2 is a schematic structural view of a backlight module according to the present invention;
图 3是根据本发明的背光源的三维结构图； Figure 3 is a three-dimensional structural view of a backlight according to the present invention;
图 4是图 3的 A向视图。 Figure 4 is a view taken along the line A in Figure 3 .
在 ϋ图中，相同的部件使 ffl相同的附图标记。附图并未按照实际的比例绘制。 具体实施方式 In the drawings, the same components make ffl the same reference numerals. The drawings are not drawn to scale. detailed description
下面将结合^图对本发明做进一步说明。 The invention will be further described below in conjunction with the drawings.
图 2示意性地显示了根据本发明的背光模组 20的结构。 背光模组 20包括背 ：光源 40和设置在背光源 40正前方的导光板 27。 背光源 40包括安装有光源灯 23 的板体 21 , 和设置在板体 21的两个纵向边缘处的反光板 24和 25。 反光板 24和 25能够避免散射光.从板体 2】和导光板 27之间的间隙射出而出现漏光现象。此夕卜 还能够反射部分散射光， 这会大大提高光效率， 使用背光模组 20 的液晶显示装 置也会因此而在保持亮度的同时， 减小电能消耗、 实现节能。 Fig. 2 schematically shows the structure of a backlight module 20 in accordance with the present invention. The backlight module 20 includes a back: a light source 40 and a light guide plate 27 disposed directly in front of the backlight 40. The backlight 40 includes a board body 21 on which the light source lamps 23 are mounted, and reflectors 24 and 25 disposed at both longitudinal edges of the board body 21. The reflectors 24 and 25 are capable of avoiding scattered light. Light leakage occurs from the gap between the plate body 2] and the light guide plate 27. Further, it is also possible to reflect part of the scattered light, which greatly improves the light efficiency, and the liquid crystal display device using the backlight module 20 can also reduce the power consumption and achieve energy saving while maintaining the brightness.
图 3以三维视图的方式显示了背光源 40的结构。 在背光源 40的板体 21的 两个纵向边缘处的反光板 24和 25。 ^整体来看， 背光源 40形成狭槽形状， 光源 灯 23剣安装在槽内。 特别是， 在反光板 24和 25的內表面构造有反光斜面 （如 图 3中的标记 26 ) ， 反光斜面能够更好地反射散射光， 如图 2中的虚线所示。 在 斜面 26上还可以涂覆反光层， 以进一步提高对散射光的反射率。 板体 21、 反光 板 24和 25均可选用导热性较好的材料以提高散热性能。 在一个实施倒中， 板体 21、 反光板 24和 25选择为为铝材， 铝不但具有较好的导热性能， 价格也较低， 以降低生产成本。 板体 21 的长度还构造为保证相邻光源灯直接的耦光距离， 以 保证使用背光模组 20的液晶显示装置不会出现暗点。 Figure 3 shows the structure of the backlight 40 in a three-dimensional view. Reflective plates 24 and 25 at the two longitudinal edges of the plate body 21 of the backlight 40. ^ Overall, the backlight 40 is formed in a slot shape, and the light source lamp 23 is mounted in the slot. In particular, reflective surfaces (as indicated by reference numeral 26 in Fig. 3) are formed on the inner surfaces of the reflectors 24 and 25, and the reflective slopes are better able to reflect the scattered light, as indicated by the dashed lines in Fig. 2. A reflective layer may also be applied to the bevel 26 to further increase the reflectance of the scattered light. The plate body 21, the reflectors 24 and 25 can be selected from materials having better thermal conductivity to improve heat dissipation performance. In one implementation, the plate body 21, the reflectors 24 and 25 are selected as aluminum materials, and the aluminum not only has better thermal conductivity but also lower price to reduce production cost. The length of the plate body 21 is also configured to ensure a direct coupling distance of adjacent light source lamps to ensure that dark spots are not present in the liquid crystal display device using the backlight module 20.
如图 4所示， 反光板 24的横截面成为一直角梯形。 直角梯形的上底 33 (即 长度较短的底） 为反光板 24的内侧面， Τ底 34 (即长度较长的底） 为反光板 24 的外侧面， 直角腰 30为反光板 24与板体 21相接触的面， 斜腰 31为反光板 24 的反光斜面 26。 另外， 斜腰 31与下底 34之间的夹角 α在 25 35。之间， 优选为
30。。 As shown in Fig. 4, the cross section of the reflector 24 is a trapezoidal shape. The upper base 33 of the right angle trapezoid (ie, the shorter length bottom) is the inner side surface of the reflector 24, the bottom 34 (ie, the longer length bottom) is the outer side of the reflector 24, and the right angle waist 30 is the reflector 24 and the board. The inclined surface 31 of the reflecting plate 24 is the surface on which the body 21 contacts. In addition, the angle α between the oblique waist 31 and the lower bottom 34 is 25 35. Between, preferably 30. .
虽然没有示出， 但是反光板 24 也可构造为其横截面为直角≡角形。 其中直 角≡角形第 ·直角边为反光板 24与板体 21相接触的面，第二直角边为反光板 24 外侧面， 斜边为反光板 24 的反光斜面。 这种结构也有助于散射光的反射。 反光 板 25的结构的反光板 24完全相同， 这里不再赘述。 Although not shown, the reflector 24 can also be constructed such that its cross section is a right angle corner. The right angled corner is the surface where the reflector 24 is in contact with the plate body 21, the second right angle is the outer side of the reflector 24, and the oblique side is the reflective slope of the reflector 24. This structure also contributes to the reflection of scattered light. The reflector 24 of the structure of the reflector 25 is identical and will not be described again here.
下面， 详细介绍背光模组 20在装配状态中的结构特征。 Next, the structural features of the backlight module 20 in the assembled state will be described in detail.
在装配状态中， 两个反光板 24、 25的内侧面和板体 21—起构成过渡区 28。 光源灯 23的光心 35设置在过渡区 28的区域内。 当光心 35处于过渡区 28中^, 反光板 24、 25会对散射光产生良好的反射性能。 由于过渡区 28为一个区域， 光 源灯 23的光心 35只要能处于这一区域即可， 这降低了对光源灯 23的装配精度 要求， 方便了背光源 40 的生产和装配。 为了能达到对散射光最佳的反射能力， 优选为将光源灯 23的光心 35设置为处于两个直角梯形 24、 25上底的斜腰端点 之间的连线的中点， 如图 4中的虚线 36的中点 35。 In the assembled state, the inner side faces of the two reflecting plates 24, 25 and the plate body 21 constitute a transition zone 28. The optical center 35 of the light source lamp 23 is disposed in the region of the transition region 28. When the optical core 35 is in the transition zone 28, the reflectors 24, 25 produce good reflection properties for the scattered light. Since the transition zone 28 is an area, the optical core 35 of the light source lamp 23 can be in this area, which reduces the assembly accuracy requirements of the light source lamp 23, and facilitates the production and assembly of the backlight 40. In order to achieve the best reflection ability for the scattered light, it is preferable to set the optical center 35 of the light source lamp 23 to be at the midpoint of the line between the oblique waist ends of the upper ends of the two right-angled trapezoids 24, 25, as shown in FIG. The midpoint 35 of the dashed line 36.
反光板 24、 25距离还应等于或小于导光板 27侧面的高度， 这也保证光源灯 23发出的光通过直接射入或反射之后， 能够完全进入导光板 27中， 从而提高了 光效率。 The distance between the reflectors 24 and 25 should also be equal to or smaller than the height of the side of the light guide plate 27, which also ensures that the light emitted from the light source lamp 23 can completely enter the light guide plate 27 after being directly incident or reflected, thereby improving light efficiency.
为了便于背光源 40的装配， 反光板 24、 25与板体 21可还以为一体成型。 光源灯 23可选择为发光二极管， 例如可选择为图 3 中的正方体型的发光二 极管。 在一个实施例中， 发光二极管的厚度尺寸为过渡区 28的深度尺寸的一倍， 并 发光二极管以其厚度尺寸的一半凸出过渡区 28的方式而安装， 如图 3所示。 正方体形发光二极管安装更为方便， 方便了生产。 In order to facilitate the assembly of the backlight 40, the reflectors 24, 25 and the plate body 21 may also be integrally formed. The light source lamp 23 can be selected as a light emitting diode, and for example, a square type light emitting diode as shown in Fig. 3 can be selected. In one embodiment, the thickness of the light emitting diode is twice the depth dimension of the transition region 28, and the light emitting diode is mounted in such a manner that half of its thickness dimension protrudes from the transition region 28, as shown in FIG. The square-shaped LED is more convenient to install and convenient for production.
本发明还涉及只用这种背光模组 20 的液晶显示装置， 例如液晶显示屏。 ffl 于背:光模组 20能够将来自光源灯 23的光完全导入导光板 27, A认而能够在保证液 晶显示装置的亮度的同时， 能降低电能消耗和降低光源灯 23 的大小， 因此能够 实现节能的目的并降低生产成本。 The present invention also relates to a liquid crystal display device using only such a backlight module 20, such as a liquid crystal display. Ffl: The optical module 20 can completely introduce the light from the light source lamp 23 into the light guide plate 27, which can reduce the power consumption and reduce the size of the light source lamp 23 while ensuring the brightness of the liquid crystal display device. Achieve energy savings and reduce production costs.
虽然已经参考优选实施例对本发明进行了描述， 但在不脱离本发明的范围的 情况下， 可以对其进行各种改进并且可以用等效物替换其中的部件。 尤其是， 只 要不存在结构冲突， 各个实施例中所提到的各项技术特征均可以任意方式组合起 来。 本发明并不局限于文中公开的特定实施例， 而是包括落入权利要求的范围內 的所有技术方案。
Although the present invention has been described with reference to the preferred embodiments thereof, various modifications may be made thereto and the components may be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
权利要求书 claims
I . 一种背光模组， 包括背光源， 所述背光源含有安装有光源灯的板体， 和 设置在所述板体的至少一个纵向边缘处的反光板。 I. A backlight module, including a backlight source, the backlight source includes a plate body on which a light source lamp is installed, and a reflective plate arranged at at least one longitudinal edge of the plate body.
2. 根据权利要求 1 所述的背光模组， 其中， 所述反光板的橫截面为直角梯 形， 其中所述直角梯形的上底为所述反光板的内侧面， 下底为所述反光板的外侧 面，直角 ffi为所述反光板与所述板体相接触的面，斜腰为所述反光板的反光斜面。 2. The backlight module according to claim 1, wherein the cross-section of the reflective plate is a right-angled trapezoid, wherein the upper bottom of the right-angled trapezoid is the inner side of the reflective plate, and the lower bottom is the reflective plate. On the outer side of , the right angle ffi is the contact surface between the reflective plate and the plate body, and the oblique waist is the reflective slope of the reflective plate.
3 , 根据权利要求 2 所述的背光模组， 其中， 从所述反光板的横截面来看， 所述直角梯形的斜腰与下底之间的夹角在 25°- 35°之间。 3. The backlight module according to claim 2, wherein, from the cross-section of the reflective plate, the angle between the oblique waist and the lower bottom of the right-angled trapezoid is between 25° and 35°.
4. 根据权利要求 3 所述的背:光模组， 其中， 在所述板体的两个纵向边缘处 均设置有反光板， 两个反光板的内侧面和所述板体一起构成过渡区。 4. The backlight module according to claim 3, wherein reflective plates are provided at both longitudinal edges of the plate body, and the inner surfaces of the two reflective plates and the plate body together form a transition zone. .
5. 根据权利要求 4所述的背光模组， 其中， 所述光源灯的光心处于所述过 渡区内。 5. The backlight module according to claim 4, wherein the optical center of the light source lamp is located in the transition zone.
6. 根据权利要求 4所述的背光模组， 其中， 从所述反光板的横截面来看， 所述光源灯的光心处于两个直角梯形上底的斜腰端点之间的连线的中点。 6. The backlight module according to claim 4, wherein, from the cross-section of the reflector, the optical center of the light source lamp is located on the line between the oblique waist end points of the two right-angled trapezoidal upper bottoms. midpoint.
7. 根据权利要求 6所述的背光模组， 其中， 在所述板体的两个纵向边缘上 均设置有反光板。 7. The backlight module according to claim 6, wherein reflective plates are provided on both longitudinal edges of the plate body.
8. 根据权利要求 7所述的背光模组， 其中， 在所述反光斜面上涂覆有反光 层: > 8. The backlight module according to claim 7, wherein a reflective layer is coated on the reflective slope: >
9, 根据权利要求 8 所述的背光模组， 其中， 还包括导光板， 所述两反光板 之间的距离等于或小于所述导光板侧面的高度。 9. The backlight module according to claim 8, further comprising a light guide plate, and the distance between the two reflective plates is equal to or less than the height of the side of the light guide plate.
10. 根据权利要求 9所述的背光模组， 其中， 所述反光板与所述板体一体成 型。 10. The backlight module according to claim 9, wherein the reflective plate and the plate body are integrally formed.
I I . 根据权利要求 10所述的背光模组， 其中， 所述光源灯为发光二极管， 所述发光二极管的厚度尺寸是所述过渡区的深度尺寸的一倍， 并且所述发光二极 管以其厚度尺寸的一半凸出所述过渡区的方式而安装。 II. The backlight module according to claim 10, wherein the light source lamp is a light-emitting diode, the thickness of the light-emitting diode is twice the depth of the transition zone, and the thickness of the light-emitting diode is Installed in such a way that half the size protrudes from the transition zone.
12. 根据权利要求 1所述的背光模组， 其中， 所述反光板的横截面为直角三 角形， 其中所述直角三角形第一直角边为所述反光板与所述板体相接触的面， 第 二直角边为所述反光板外侧面， 斜边为所述反光板的反光斜面。 12. The backlight module according to claim 1, wherein the cross-section of the reflective plate is a right-angled triangle, wherein the first right-angled side of the right-angled triangle is the surface in contact between the reflective plate and the plate body, The second right-angled side is the outer surface of the reflective plate, and the hypotenuse is the reflective slope of the reflective plate.
13. 根据权利要求 12所述的背光模组， 其中， 在所述板体的两个纵向边缘
上均设置有反:光板。 13. The backlight module according to claim 12, wherein at two longitudinal edges of the plate body Reflective panels are provided on both sides.
14. 根据权利要求 13 所述的背光模组， 其中， 在所述反光斜面上涂覆有反 光层。 14. The backlight module according to claim 13, wherein a reflective layer is coated on the reflective slope.
15. 根据权利要求 14所述的背光模组， 其中， 还包括导光板， 所述两反光 板之间的距离等于或小于所述导光板侧面的高度。 15. The backlight module according to claim 14, further comprising a light guide plate, and the distance between the two reflective plates is equal to or less than the height of the side of the light guide plate.
16. 根据权利要求 15 所述的背光模组， 其中， 所述反光板与所述板体一体 成型。 16. The backlight module according to claim 15, wherein the reflective plate and the plate body are integrally formed.
17. 根据权利要求 16所述的背光模组， 其中， 所述光源灯为发光二极管， 所述发光二极管的厚度尺寸是所述过渡区的深度尺寸的一倍， 并且所述发光二极 管以其厚度尺寸的一半凸出所述过渡区的方式而安装。 17. The backlight module according to claim 16, wherein the light source lamp is a light-emitting diode, the thickness of the light-emitting diode is twice the depth of the transition zone, and the thickness of the light-emitting diode is Installed in such a way that half the size protrudes from the transition zone.
18. 一种包括根据权利要求 1 所述的背光模组的液晶显示装置。 18. A liquid crystal display device comprising the backlight module according to claim 1.
19. 一种包括根据权利要求 17所述的背光模组的液晶显示装置。
19. A liquid crystal display device comprising the backlight module according to claim 17.
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| CN201310305807.1A CN103343926B (en) | 2013-07-19 | 2013-07-19 | Backlight module and the liquid crystal indicator using it |
| CN201310305807.1 | 2013-07-19 |
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| CN103343926B (en) * | 2013-07-19 | 2015-09-09 | 深圳市华星光电技术有限公司 | Backlight module and the liquid crystal indicator using it |
| CN104296002A (en) * | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN104834050A (en) * | 2015-05-19 | 2015-08-12 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN105044980B (en) * | 2015-08-07 | 2018-03-20 | 创维液晶器件(深圳)有限公司 | A kind of light leakage backlight module and liquid crystal display device |
| CN105425461A (en) * | 2015-12-08 | 2016-03-23 | 广东长虹电子有限公司 | Single-lamp backlight module |
| CN105425462A (en) * | 2015-12-08 | 2016-03-23 | 广东长虹电子有限公司 | Four-corner lamp backlight module |
| CN107490898A (en) * | 2017-08-14 | 2017-12-19 | 深圳市华星光电技术有限公司 | Side entrance back module and liquid crystal display device |
| CN109061790A (en) * | 2018-07-25 | 2018-12-21 | 青岛海信电器股份有限公司 | A kind of side entrance back module |
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