WO2020000841A1 - 一种背光模组和显示面板 - Google Patents

一种背光模组和显示面板 Download PDF

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Publication number
WO2020000841A1
WO2020000841A1 PCT/CN2018/113563 CN2018113563W WO2020000841A1 WO 2020000841 A1 WO2020000841 A1 WO 2020000841A1 CN 2018113563 W CN2018113563 W CN 2018113563W WO 2020000841 A1 WO2020000841 A1 WO 2020000841A1
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WIPO (PCT)
Prior art keywords
light guide
guide plate
light
backlight
source
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Ceased
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PCT/CN2018/113563
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English (en)
French (fr)
Inventor
程加河
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Application filed by HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Publication of WO2020000841A1 publication Critical patent/WO2020000841A1/zh
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Ceased legal-status Critical Current

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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

Definitions

  • the present application relates to the field of display technology, and in particular, to a backlight module and a display panel.
  • LCD monitors have become mainstream products due to the thin body, power saving and low radiation. They have become important display platforms for IT and video products.
  • LCD TVs are becoming more and more widespread, occupying more and more important positions in people's daily lives, and the energy they consume also attracts more and more attention. Therefore, various TV, computer, and LCD manufacturers have invested significant material, human, and financial resources to increase research and development efforts to reduce power consumption. From the perspective of technological development, how to reduce the power consumption of backlights has received the most attention. Because the backlight is the largest energy consumer, the power consumption of the backlight is reduced, and the power consumption of the entire machine is greatly reduced.
  • the technologies include improving the driving circuit of the backlight source, improving the luminous efficiency of LEDs, and developing new types of LEDs. Local Dimming (local backlight adjustment), which the inventors know, is the easiest to implement and has the most obvious effect. .
  • the general local backlight adjustment scheme mainly achieves the purpose of local display by adjusting the liquid crystal switch. It does not control the switch of the backlight, so the power consumption cannot be significantly reduced. For the purpose of power consumption, there is also the problem of dimming the brightness.
  • the purpose of the present application is to provide a backlight module and a display panel to solve the problem of reducing unit power consumption under the same display brightness condition during partial display.
  • this application provides a backlight module, including:
  • a backlight source arranged in cooperation with the light guide plate
  • a back plate for carrying the light guide plate and the backlight source
  • the light guide plate includes:
  • At least two light guide blocks are provided.
  • At least one divider the divider is disposed between at least one adjacent face of two adjacent light guide blocks to separate the light guide blocks.
  • the partition is disposed between the upper top surface and the lower bottom surface of the light guide plate and is inclined at an angle of 30 degrees to 60 degrees with the upper top surface and the lower bottom surface, and the partition It completely overlaps the projection plane of the light guide block in the horizontal direction.
  • the first surface and the second surface of the separator are respectively coated with a reflective material or a light-shielding material;
  • the reflective sheet separator may be a reflective sheet, at least one side of which is coated with a reflective material, or may be coated with only a light-shielding material to form a light-shielding plate that prevents cross-light. If the light-shielding material can achieve diffuse Reflection, can increase the brightness of the local area during local display by a small amount. If it is a reflective sheet, it can increase the brightness of local display by a large amount.
  • the separator is a reflective sheet
  • the reflective sheet can be an aluminum reflective sheet. It can also be a double-sided silver reflective sheet.
  • the silver reflective layer has the highest reflectance of all metal reflective layers. Because aluminum, silver, copper and other materials are easily oxidized in the air to reduce performance, the double-sided silver reflective sheet can be protected by a dielectric film.
  • the commonly used protective film materials are silicon oxide, magnesium fluoride, silicon dioxide, and trioxide. Aluminum, etc.
  • the double-sided silver reflective sheet is set so that the upper end is flush with the upper top surface of the light guide plate, and the lower end is flush with the lower bottom surface of the light guide plate, in order to completely complete the light of each light guide block. Isolation, to avoid the problem that the light in the lit area goes to the unlit area during the local display, causing the brightness to be dimmed.
  • the separator is a double-sided double-sided silver reflective sheet coated with a silver reflective material on both the first surface and the second surface, and is disposed between an upper top surface and a lower bottom surface of the light guide plate, and The upper top surface and the lower bottom surface are inclined at an included angle of 30 degrees to 60 degrees.
  • the double-sided silver reflective sheet is a double-sided reflective sheet; the double-sided silver reflective sheet may be disposed at the connection of the light guide block at an angle of 30 to 60 degrees.
  • the The double-sided silver reflector is set at a 45-degree angle.
  • the upper surface can better guide the light shining on it to the light exit surface of the light plate;
  • the lower surface can reflect the light shining on it into the light guide block, so that the light guide block guides the light out of the light surface.
  • the double-sided silver reflective sheet is at a 45-degree angle, the upper end of the double-sided silver reflective sheet When the top surface of the light guide plate is flush with the top surface of the light guide plate, the contact surface between the reflection plate and the top surface of the light guide plate is the smallest, which can avoid the possibility of the dark lines due to the arrangement of the double-sided silver reflection plate.
  • the light guide block further includes:
  • the light source is reserved at a lower portion of the double-sided silver reflection sheet disposed obliquely;
  • the reserved position of the light source includes a lamp holder and a lamp holder for installing a backlight source, and an upper surface of the lamp holder is disposed flush with a lower bottom surface of the light guide plate;
  • the backlight source is disposed at the reserved position of the light source.
  • the reserved space for the light source includes a lamp holder and a lamp holder for installing a backlight source.
  • the upper surface of the lamp holder and the lower bottom surface of the light guide plate should be arranged flush with each other. The problem of oblique light from the lower end of the double-sided silver reflective sheet to the unlit area will not occur.
  • the light from the backlight source corresponding to each light guide block can be collected in the corresponding light guide block and local area, reducing During partial display, the backlight is wasted.
  • the reserved position of the light source is a substantial side-light backlight setting method.
  • the lower surface of the 45-degree inclined double-sided silver reflective sheet reserves the light source.
  • the light from the light source at the position is reflected into the light guide block.
  • the reserved position of the light source is blocked to avoid the uneven brightness of the backlight due to the setting of the backlight at the reserved position of the light source. problem.
  • the light guide plate and the region spacer are integrally formed.
  • the light guide plate and the area spacer are integrally formed.
  • an area spacer is placed in the light guide plate to divide the light guide plate into a plurality of independent light guides and backlight sources. Area; specifically, a light source reserved space needs to be reserved at the space interval of the light guide plate.
  • the light guide blocks are separately formed, a plurality of the light guide blocks are spliced to form the light guide plate, and the area spacer is provided at a connection position of every two light guide blocks.
  • the light guide blocks are separately formed separately, and the light guide plate is assembled after being formed, and the area spacer is disposed at the connection between the light guide blocks.
  • the region spacers there are two groups of the region spacers that cross the light guide plate in the transverse and longitudinal directions of the light guide plate, respectively.
  • the two groups of the region spacers divide the light guide plate into 3 * 3 nine pieces in total.
  • each light guide block located in the middle is not connected with the outer surface of the light guide plate.
  • each light guide block may be the same size or different sizes, which is determined according to the specific conditions of the light guide plate and the display panel.
  • one of the light guide blocks of the present application may be provided in The middle part of the entire display area does not directly contact the four sides of the display area or the outer surface of the light guide plate, and the display panel may be an edge-lit backlight panel.
  • the backlight source includes a first backlight source and a second backlight source
  • the first backlight source includes:
  • a first sub-light source disposed on a side wall of the back plate opposite to the light guide plate;
  • a second sub-light source which is arranged at the reserved position of the light source
  • the second backlight source is evenly arranged on a light incident surface of the light guide plate.
  • the first backlight source is an edge-type backlight source
  • the second backlight source is a direct-type backlight source; optionally, the first sub-light source may be disposed only in one of the light guide plates. A plurality of sides are arranged uniformly, or they may be arranged on both sides of the light guide plate and evenly arranged.
  • the second sub-light source is provided at a reserved place of the light source, and is arranged along each of the two light guide blocks. Multiple connections are arranged evenly.
  • the present application also discloses a display panel including: a backlight module, as well as a display module and a front frame, as disclosed in any one of the present application;
  • the backlight module, the display module and the front frame are assembled to form the display panel.
  • the light guide plate of the present application is divided into at least two light guide blocks through a spacer, and each light guide block will correspond to a display area of the display interface.
  • the backlight source in each light guide block area is controlled separately.
  • the backlights of the other display areas can be turned off correspondingly; and due to the existence of the spacer in the area, the light of the backlight in the display area can be well condensed in the corresponding light guide In the block and the display area, there will not be a problem that the brightness in the display area is significantly reduced due to the backlight light shining on the unlit light guide block and the display area.
  • the spacer in this area is a reflective sheet.
  • the reflection sheet can reflect this part of the light back to the corresponding light guide block and display area, reducing the light. Loss, reducing the problem of reducing the brightness of the display area under the condition that the brightness of the backlight source is not changed; of course, it is also possible that the spacer in this area is not a reflective sheet, even if it is diffuse reflection Back portion of the light can be converged block corresponding to the light guide and the display area, but the effect is not so good reflection sheet, but in the selection, drawing a wider range, to readily select a material suitable for low cost.
  • FIG. 1 is a schematic diagram of a backlight module according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present application.
  • connection should be understood in a broad sense, unless explicitly stated and limited otherwise.
  • they may be fixed connections or removable.
  • Connection, or integral connection it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • connection or integral connection; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • Local display technology is a technology that attracts a lot of attention.
  • Various TV, computer, and LCD manufacturers have made various attempts for local backlight adjustment technology.
  • Local Dimming is the easiest and most obvious technology in local display technology. Specifically, a plurality of display areas are divided. When only a part of the display area is required to be lit, the backlight in this area is unchanged, and the backlight in other areas is turned off. This achieves the purpose of local display and reduces power consumption. . However, in actual application, due to the backlight of the electrically bright area, a large part of the light will actually diffuse into the unlit area, so that under the same brightness adjustment of the backlight source, the brightness of the local display area will be significantly reduced after partial display. In order to solve this situation, the display brightness is equal to that of the full screen display in local display.
  • the technicians have come up with many methods, such as not turning off the backlight of the unlit area, only performing the dimming process or approaching the unlit area.
  • the weekly backlight of the bright area is still lit to achieve the effect of compensating the backlight brightness of the lit area by the backlight of the unlit area; for example, by increasing the brightness of the lit area to compensate for the light diffused to the unlit area and maintain it Inconvenient brightness.
  • FIG. 1 is a schematic diagram of a backlight module according to the present application. As can be seen with reference to FIG. 1, the present application provides a backlight module including:
  • the optical film 20 is disposed on a light emitting surface of the light guide plate 10;
  • a backlight source arranged in cooperation with the light guide plate 10;
  • the back plate 40 is configured to carry the light guide plate 10 and a backlight source
  • a plastic frame 50 configured to cooperate with the back plate 40;
  • the light guide plate 10 includes:
  • At least two light guide blocks 12 are provided. At least two light guide blocks 12,
  • At least one partition 11 is disposed between at least one adjacent surface of two adjacent light guide blocks 12 and is configured to partition the light guide blocks 12.
  • the light guide plate 10 may be made of optical-grade acrylic plate or PC material, or may be made of other materials.
  • the light guide plate may convert the light of the backlight source into a surface light source, and may also be used for other purposes.
  • the backplane may be a practical backplane corresponding to a physical entity, and a corresponding carrier carrying the light guide plate and the backlight source, but if the LED light of the backlight source is disposed in the light guide plate, the backplane It is part of the plate body that the light guide plate plays a bearing role (that is, the back plate does not actually have a corresponding back plate structure).
  • the plastic frame can be a plastic frame corresponding to a solid body in a practical sense. In cooperation with the fixed back plate, if a back plate structure does not actually exist, the plastic frame can also be a virtual component, which does not exist. The actual corresponding structure.
  • the optical film can have a separate structure, uniform light, and converge large-angle light for frontal observation.
  • the optical film A slice may not actually have a corresponding structure.
  • the light guide plate of the present application is divided into at least two light guide blocks through a spacer, and each light guide block will correspond to a display area of the display interface.
  • the backlight source in each light guide block area is controlled separately.
  • the backlights of the other display areas can be turned off correspondingly; and due to the existence of the spacer in the area, the light of the backlight in the display area is well condensed in the corresponding light guide block and In the display area, the brightness of the display area will not be significantly reduced due to the backlight light shining on the unlit light guide block and the display area.
  • the area spacer is a reflective sheet.
  • the reflection sheet reflects this part of the light back to the corresponding light guide block and display area, reducing the loss of light. If the brightness of the backlight source is not changed, the brightness of the display area will be reduced. Of course, it is also possible that the spacer in this area is not a reflective sheet. Even diffuse reflection will reduce part of the light.
  • the wire bundle returns to the corresponding light guide block and display area, but the effect is not as good as that of the reflective sheet, but when selecting materials, the range of material selection is wider, and it is easy to select suitable low-cost materials.
  • the partition 11 is disposed between the upper top surface and the lower bottom surface of the light guide plate, and is inclined at an angle of 30 to 60 degrees with the upper top surface and the lower bottom surface, and the partition The projection surface of the element 11 and the light guide block 12 in the horizontal direction completely overlaps. .
  • the first surface and the second surface of the separator 11 are respectively coated with a reflective material or a light-shielding material;
  • the reflecting sheet separator may be a reflecting sheet or a light shielding plate made of a light shielding material to prevent cross light. If the light shielding material realizes diffuse reflection, the local Brightness, if it is a reflective sheet, it will greatly increase the local display brightness; when the partition is a reflective sheet, the reflective sheet can be an aluminum reflective sheet or a double-sided silver reflective sheet, between visible light and near infrared In the spectral range, the silver reflective layer has the highest reflectivity of all metallic reflective layers.
  • the double-sided silver reflective sheet can be protected by a dielectric film.
  • the commonly used protective film materials are silicon oxide, magnesium fluoride, silicon dioxide, and trioxide. Aluminum, etc.
  • the double-sided silver reflective sheet is set so that the upper end is flush with the upper top surface of the light guide plate, and the lower end is flush with the lower bottom surface of the light guide plate, in order to completely complete the light of each light guide block. Isolation, to avoid the light in the lit area from going to the unlit area during partial display, which will cause the brightness to be dimmed.
  • the separator 11 is a double-sided double-sided silver reflective sheet 111 coated with a silver reflective material on both the first surface and the second surface, and is disposed between the upper top surface and the lower bottom surface of the light guide plate 10, and It is inclined at an angle of 30 degrees to 60 degrees with the upper top surface and the lower bottom surface.
  • the double-sided silver reflective sheet is a double-sided reflective sheet; the double-sided silver reflective sheet is disposed at a 45-degree angle.
  • the upper surface of the edge-lit backlight is better illuminated.
  • the light on it is guided to the light emitting surface of the light plate; and the lower surface of the double-sided silver reflecting sheet reflects the light shining on it into the light guide block, so that the light guide block guides the light to the light emitting surface;
  • the silver reflection sheet can be arranged at the connection of the light guide block at an angle of 30 to 60 degrees.
  • the double-sided silver reflection sheet is at a 45-degree angle, the upper end of the double-sided silver reflection sheet and the top of the light guide plate When the surfaces are flush, the contact surface between the reflective sheet and the top surface of the light guide plate is the smallest, which can avoid the possibility of dark lines due to the setting of the double-sided silver reflective sheet.
  • the light guide block 10 further includes:
  • the light source reserved position 13 is disposed at a lower portion of the double-sided silver reflective sheet 111 disposed obliquely;
  • the light source reserved position 13 includes a lamp holder (not shown in the figure) and a lamp position (not shown in the figure) for installing a backlight source.
  • the upper surface of the lamp holder is flush with the lower bottom surface of the light guide plate 10.
  • the backlight source is disposed at the light source reserved position 13.
  • the reserved space for the light source includes a lamp holder and a lamp holder for installing a backlight source.
  • the upper surface of the lamp holder and the lower bottom surface of the light guide plate should actually be flush with each other. Occurs when the light obliquely falls from the lower end of the double-sided silver reflective sheet to the unlit area.
  • the light from the backlight corresponding to each light guide block is collected in the corresponding light guide block and local area, reducing local display time.
  • the backlight is wasted in the lit area; in addition, the reserved position of the light source is a substantial side-light backlight setting method, and the lower surface of the 45-degree inclined double-sided silver reflection sheet places the light source at the reserved position. The light from the light source is reflected into the light guide block. At the same time, due to the oblique setting, the light source reserved position is blocked to avoid the uneven brightness of the backlight due to the setting of the backlight at the light source reserved position.
  • the light guide block 10 further includes:
  • the light source reserved bit 13 is set corresponding to each of the light guide blocks 12;
  • the control of the light source reserved bits 13 corresponding to each of the light guide blocks 12 is independent of each other.
  • the reserved position of the light source may be a setting manner of an edge-light type backlight, or a direct-type backlight.
  • the reserved position of the light source may set a backlight source and control the switch of the backlight source.
  • the light source reserved bits corresponding to each light guide block are independent of each other, so that during local display, corresponding control is performed, and at the same time as local display, the power consumption of the backlight is reduced, thereby achieving the purpose of green energy saving.
  • the light guide plate 10 and the area spacer 11 are integrally formed.
  • the light guide plate and the area spacer are integrally formed.
  • an area spacer is placed in the light guide plate to divide the light guide plate into a plurality of independent light guides and backlight sources. Area; specifically, a light source reserved space must be reserved at the area interval of the light guide plate.
  • the light guide blocks 12 are separately formed separately, a plurality of the light guide blocks 12 are spliced to form the light guide plate 10, and the area spacers 11 are provided at the junctions of every two of the light guide blocks 12;
  • the light guide block 12 located in the middle is not connected to the outer surface of the light guide plate 10.
  • the light guide blocks are separately formed separately, and the light guide plate is assembled after being formed, and the area spacer is disposed at the connection between the light guide blocks.
  • two groups of the region spacers 11 are arranged across the light guide plate 10 in the transverse and longitudinal directions of the light guide plate 10, and the two groups of the region spacers 11 space the light guide plate 10 at three intervals.
  • * 3 A total of nine light guide blocks 12;
  • each light guide block located in the middle is not connected with the outer surface of the light guide plate.
  • each light guide block may be the same size or different sizes, which is determined according to the specific conditions of the light guide plate and the display panel.
  • one of the light guide blocks of the present application may be provided in The middle part of the entire display area does not directly contact the four sides of the display area or the outer surface of the light guide plate, and the display panel may be an edge-lit backlight panel.
  • the backlight source includes a first backlight source and a second backlight source
  • the first backlight source includes:
  • the first sub-light source 31 is disposed on a side wall of the back plate 40 opposite to the light guide plate 10;
  • the second sub-light source 32 is disposed at the light source reserved position 13;
  • the second backlight sources are evenly arranged on the light incident surface of the light guide plate 10.
  • the first backlight source is an edge-type backlight source
  • the second backlight source is a direct-type backlight source
  • the first sub-light source may be disposed only in one of the light guide plates.
  • a plurality of sides are arranged uniformly, or they may be arranged on both sides of the light guide plate and evenly arranged.
  • the second sub-light source is provided at a reserved place of the light source, and is arranged along each of the two light guide blocks. Multiple connections are arranged evenly.
  • the backlight source includes a direct type backlight source.
  • the backlight source may also be a direct type backlight source, which is arranged in cooperation with a light guide plate.
  • the backlight module of the present application includes a light guide plate, and the light guide plate is divided into at least two light guide blocks by a spacer, and each light guide block will correspond to a display area of the display interface.
  • the backlight sources are controlled separately. In this way, when only one of the display areas is lit, the backlight sources of the other display areas can be turned off correspondingly; and due to the presence of the spacer in this area, the backlight light in the display area is very good.
  • the beam is condensed in the corresponding light guide block and the display area, and the brightness in the display area will not be significantly reduced due to the backlight light illuminating the unlit light guide block and the display area.
  • FIG. 2 is a schematic diagram of a display panel of the present application. Referring to FIG. 4 and FIG. 1-3, it can be seen that the present application further discloses a display panel 200 including a backlight module 100 and a display as disclosed in any one of the present application. Module 60 and front frame 70;
  • the backlight module 100, the display module 60 and the front frame 70 are assembled to form the display panel.
  • the display panel of the present application includes a backlight module including a light guide plate, and the light guide plate is divided into at least two light guide blocks by a spacer, and each light guide block will correspond to a display area of a display interface.
  • the backlight sources in each light guide block area are controlled separately. In this way, when only one of the display areas needs to be lit, the backlight sources in the other display areas can be turned off correspondingly; and due to the presence of the spacer in this area, The light from the backlight source is well condensed in the corresponding light guide block and display area, and the brightness in the display area will not be significantly reduced due to the backlight light shining on the unlit light guide block and the display area.
  • the panel of the present application may be a TFT-LCD panel (thin film-transistor-liquid crystal display), a TN panel (full name is Twisted Nematic, that is, a twisted nematic panel), an IPS panel (In-Plane Switching, planar conversion), or a VA panel ( Multi-domain (Vertical alignment technology), of course, other types of panels can also be used.
  • TFT-LCD panel thin film-transistor-liquid crystal display
  • TN panel full name is Twisted Nematic, that is, a twisted nematic panel
  • IPS panel In-Plane Switching, planar conversion
  • VA panel Multi-domain (Vertical alignment technology)

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Abstract

本申请公开了一种背光模组和显示面板，该背光模组包括：导光板和背光源；所述导光板包括：两块导光块和一个分隔件，所述分隔件设置在相邻两块导光块的相邻面之间。

Description

一种背光模组和显示面板
本申请要求于2018年6月29日提交中国专利局、申请号为2018210199922、发明名称为“一种背光模组和显示面板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种背光模组和显示面板。
背景技术
随着科技的发展和进步，液晶显示器由于具备机身薄、省电和辐射低等热点而成为显示器的主流产品，已经成为现在IT、视讯产品重要的显示平台。
液晶电视的使用越来越广泛，在人们的日常生活中占据越来越重要的位置，而其消耗的能量也越来越引起人们的关注。因此，各个电视、电脑、液晶厂商都投入极大的物力、人力、财力加大研发力量去降低功耗，从技术发展趋势上来说，如何降低背光的功耗最受到关注。因为背光源是最大的能量消耗者，降低了背光的功耗，也就大大降低了整机的功耗。这其中的技术包括改善背光源的驱动电路，改善LED的发光效率，开发新的LED种类，发明人知晓的Local Dimming(局部背光调节)是这些技术中最易于实现，效果最明显的一项技术。
一般的局部背光调节方案，主要是通过调节液晶开关来达到局部显示的目的，不控制背光的开关，因而无法明显减少功耗；或者即使是通过减少背光点亮的LED灯数量来达到了减少功耗的目的，也存在亮度变暗的问题。
技术解决方案
本申请的目的在于提供一种背光模组和显示面板，以解决在局部显示时，减少同样显示亮度条件下单位功耗。
为实现上述目的，本申请提供了一种背光模组，包括：
导光板；
背光源，与所述导光板配合设置；
背板，用于承载所述导光板和背光源；
胶框，用于与所述背板配合设置；
所述导光板包括：
至少两块导光块，
至少一个分隔件，所述分隔件设置在相邻两块所述导光块的至少一相邻面之间，用于分隔所述导光块。
可选的，所述分隔件设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置，且所述分隔件与所述导光块在水平方向上的投影面完全重叠。
可选的，所述分隔件的第一表面和第二表面分别涂布有反射材料或者遮光材料；
所述分隔件的上端与所述导光板的上顶面齐平，所述分隔件的下端与所述导光板的下底面齐平。本实施方案中，该反射片分隔件可以是反射片，至少一侧涂布有反射材料，也可以仅仅涂布有遮光材料，制成防止串光的遮光板，若该这遮光材料能够实现漫反射，则能够小幅度增加局部显示时，局部区域的亮度，若为反射片，则能够较大幅度的增加局部显示亮度；当该分隔件为反射片时，该反射片可以是铝反射片，也可以是双面银反射片，在可见光到近红外光谱范围内，银反射层是所有金属反射层中反射率最高的。由于铝、银、铜等材料在空气中很容易氧化而降低性能，该双面银反射片可以采用电介质膜加以保护，常用的保护膜材料有一氧化硅、氟化镁、二氧化硅、三氧化二铝等；另外，该双面银反射片设置为上端与导光板的上顶面齐平，下端与导光板的下底面齐平，则是为了完全的将每个导光块进行光线的完全隔离，避免在局部显示时，点亮区域的光线跑到未点亮区域中，造成亮度变暗的问题。
可选的，所述分隔件为第一表面和第二表面均涂布有银反射材料的双面双面银反射片，设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置。本实施方案中，更具体的，该双面银反射片为双面反射片；该双面银反射片可以呈30度至60度倾斜设置在导光块的连接处，可选的的，该双面银反射片呈45度角设置，特别的，对于侧光式背光源来说，其上表面能够更好的将照射其上的光线向导光板的出光面引导；而双面银反射片的下表面，则能够将照射其 上的光线反射到导光块内，以便导光块将光线导向出光面；另外，该双面银反射片呈45度角时，在该双面银反射片上端与导光板上顶面齐平的情况下，该反射片与导光板上顶面的接触面最小，可以避免因双面银反射片的设置而出现条形暗线的可能。
可选的，所述导光块还包括：
光源预留位，设置在倾斜设置的所述双面银反射片的下部；
所述光源预留位包括灯座和用于安装背光源的灯位，所述灯座的上表面与所述导光板的下底面齐平设置；
所述背光源设置在所述光源预留位处。本实施方案中，具体的，该光源预留位包括灯座和用于安装背光源的灯位，该灯座的上表面与导光板的下底面实际上应当齐平设置，如此，该背光源便不会出现，光线从双面银反射片的下端斜射到未点亮区域的问题，能够将每个导光块对应的背光源的光线收束在对应的导光块和局部区域内，减少局部显示时，点亮区域的背光浪费的问题；另外，该光源预留位属于实质的侧光式背光源的设置方式，该45度倾斜设置的双面银反射片的下表面将光源预留位处的光源的光反射到导光块内，同时，由于倾斜设置，将光源预留位遮挡住了，避免因光源预留位处的背光源的设置，而造成背光源局部亮度不均的问题。
可选的，所述导光板和区域间隔件一体成型。本实施方案中，该导光板和区域间隔件是一体成型地，在制作导光板时，在导光板中置入区域间隔件，以将导光板分割为导光和背光源控制相互独立的多个区域；具体的，还需要在导光板的区域间隔处预留出光源预留位。
可选的，所述导光块分别独立成型，多个所述导光块拼接组成所述导光板，所述区域间隔件设置在每两个所述导光块的连接处。本实施方案中，该导光块是分别独立成型的，成型后拼装而成该导光板，而区域间隔件便设置在导光块之间的连接处。
可选的，所述区域间隔件在所述导光板横向和纵向方向分别贯穿所述导光板交叉设置有两组，两组所述区域间隔件将所述导光板间隔为3*3共九块导光块；
位于中间的所述导光块与所述导光板的外表面均不连通。本实施方案中，每个导光块可以是相同大小的，也可以是不同大小的，具体根据导光板和显示面板的具体情况确定；另外，本申请的导光块的其中一个可以是设置在整个显示区域的中部，与显示区域四边或者说导光板的外表面均不直接接触，而且该显示面板可以是侧光式背光源面板。
可选的，所述背光源包括第一背光源和第二背光源；
所述第一背光源包括：
第一子光源，设置在所述背板相对于所述导光板的侧壁上；
第二子光源，设置在所述光源预留位处；
所述第二背光源均匀排布在所述导光板的入光面。本实施例中，具体的，该第一背光源即侧入式背光源，而该第二背光源即直下式背光源；可选的，该第一子光源可以只设置在该导光板的一侧边，均匀布设多个，也可以是设置在导光板的两侧边，均匀布设多个；另外，该第二子光源，设置在该光源预留处，沿着每两块导光块的连接处均匀布设多个。
本申请还公开了一种显示面板，包括：如本申请任一公开的背光模组、以及显示模组和前框；
所述背光模组、显示模组和前框组装形成所述显示面板。
本申请的导光板，通过分隔件间隔拆分为至少两块导光块，每个导光块将对应于显示界面的一个显示区域，每个导光块区域内的背光源分别控制，如此，当只需要点亮其中一个显示区域时，可以对应将其他显示区域的背光源关闭；而由于该区域间隔件的存在，在显示区域内的背光源的光线能够很好的收束在对应导光块和显示区域内，不会出现因背光源的光线照射到未点亮导光块和显示区域而造成显示区域内的亮度明显降低的问题；另外，该区域间隔件为反射片，如此，每个导光块内，对应的背光若是通过区域间隔件想要向未点亮显示区域扩散时，该反射片就能够将这部分光线反射回到对应的导光块和显示区域内，减少了光线的损耗，减少背光源亮度不变情况下，显示区域亮度降低的问题；当然，该区域间隔件不是反射片也是可以的，即便是漫反射也能够将一部分光线收束回到对应的导光块和显示区域内，只是效果没有反射片那么好，但是在选材时，取材范围更广，容易选择到适用的低成本的材料。
附图说明
所包括的附图用来提供对本申请实施例的可选的理解，其构成了说明书的一部分，例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请的一实施例一种背光模组的示意图；
图2是本申请的一实施例一种显示面板的示意图。
本申请的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
在图中，结构相似的单元是以相同标号表示。
局部显示技术是一种广受关注的技术，各个电视、电脑、液晶厂家针对局部背光调节的技术进行了各种各样的尝试。
其中，有纯粹的局部显示技术，即不对背光进行开关和亮度调节，至少控制液晶面板的翻转，来达到局部显示的目的，但是这样的做法，实际上由于占大头的背光功耗没有实际减少，因而无法达到明显的减少功耗的目的，无法实现绿色节能。
其次，便是Local Dimming(局部背光调节)，Local Dimming是局部显示技术中最易于实现，效果最明显的一项技术。具体的，划分出多个显示区域，当只需要其中一部分显示区域点亮的时候，该区域的背光不变，其他区域的背光关闭，如此便达到局部显示的目的，同时达到减少功耗的目的。但是在实际应用时，由于电亮区域的背光，其实很大部分的光线会扩散到未点亮区域中，使得背光源同等亮度调节下，局部显示后，局部显示区域的亮度会明显下降。为了解决这一情况，使得局部显示时，显示亮度与全屏显示时亮度相当，技术人员们想出来许多办法，例如未点亮区域的背光不关闭，只做变暗处理或者未点亮区域靠近点亮区域的一周背光仍然点亮，来达到通过未点亮区域的背光补偿点亮区域背光亮度的作用；再例如，通过提高点亮区域的亮度，来补偿扩散到未点亮区域的光线而维持亮度不便的目的。
但是，上述的技术方案，实际上在不改变显示亮度且不改变液晶翻转控制的情况下，发明人知晓的一种方案局部显示时，需要的单位功耗均高于全屏显示的情况。
图1是本申请一种背光模组的示意图，参考图1可知，本申请提供了一种背光模组，包括：
导光板10；
光学膜片20，设置在所述导光板10出光面；
背光源，与所述导光板10配合设置；
背板40，设置为承载所述导光板10和背光源；
胶框50，设置为与所述背板40配合设置；
所述导光板10包括：
至少两块导光块12，
至少一个分隔件11，所述分隔件11设置在相邻两块所述导光块12的至少一相邻面之间，设置为分隔所述导光块12。
其中，该导光板10可以采用光学级亚克力板材或PC材料制成，也可以采用其他材料制成，且该导光板可以将背光源的光线转化为面光源，也可以用作他用。
其中，该背板可以是实际意义的、对应存在实体的背板，存在对应的承载该导光板和背光源的载体，但如果该背光源的LED灯设置在该导光板内，那么该背板则为该导光板发挥承载作用的部分板体(即该背板不实际存在一个对应的背板结构)。同理，该胶框可以是实际意义上的、对应存在实体的胶框，配合固定该背板，若不实际存在一个背板结构，那么该胶框也可以是一个虚拟的部件，而不存在实际对应的结构。再同理，该光学膜片可以存在单独的结构，均匀光线,并且汇聚大角度光供正面观察等作用，但若是导光板发展到无需该光学膜片便完成均匀光线等作用的话，该光学膜片可以不实际存在一个对应的结构。
本申请的导光板，通过分隔件间隔拆分为至少两块导光块，每个导光块将对应于显示界面的一个显示区域，每个导光块区域内的背光源分别控制，如此，当只要点亮其中一个显示区域时，可以对应将其他显示区域的背光源关闭；而由于该区域间隔件的存在，在显示区域内的背光源的光线很好的收束在对应导光块和显示区域内，不会出现因背光源的光线照射到未点亮导光块和显示区域而造成显示区域内的亮度明显降低的情况；另外，该区域间隔件为反射片，如此，每个导光块内，对应的背光若是通过区域间隔件想要向未点亮显示区域扩散时，该反射片就将这部分光线反射回到对应的导光块和显示区域内，减少了光线的损耗，减少背光源亮度不 变情况下，导致显示区域亮度降低；当然，该区域间隔件不是反射片也是可以的，即便是漫反射也将一部分光线收束回到对应的导光块和显示区域内，只是效果没有反射片那么好，但是在选材时，取材范围更广，容易选择到适用的低成本的材料。
可选的，所述分隔件11设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置，且所述分隔件11与所述导光块12在水平方向上的投影面完全重叠。。
可选的，所述分隔件11的第一表面和第二表面分别涂布有反射材料或者遮光材料；
所述分隔件11的上端与所述导光板10的上顶面齐平，所述分隔件11的下端与所述导光板10的下底面齐平。本实施方案中，该反射片分隔件可以是反射片，也可以只是遮光材料制成，防止串光的遮光板，若该这遮光材料实现漫反射，则小幅度增加局部显示时，局部区域的亮度，若为反射片，则较大幅度的增加局部显示亮度；当该分隔件为反射片时，该反射片可以是铝反射片，也可以是为双面银反射片，在可见光到近红外光谱范围内，银反射层是所有金属反射层中反射率最高的。由于铝、银、铜等材料在空气中很容易氧化而降低性能，该双面银反射片可以采用电介质膜加以保护，常用的保护膜材料有一氧化硅、氟化镁、二氧化硅、三氧化二铝等；另外，该双面银反射片设置为上端与导光板的上顶面齐平，下端与导光板的下底面齐平，则是为了完全的将每个导光块进行光线的完全隔离，避免在局部显示时，点亮区域的光线跑到未点亮区域中，会造成亮度变暗。
可选的，分隔件11为第一表面和第二表面均涂布有银反射材料的双面双面银反射片111，设置在所述导光板10的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置。本实施方案中，更具体的，该双面银反射片为双面反射片；该双面银反射片呈45度角设置，特别的，对于侧光式背光源的上表面更好的将照射其上的光线向导光板的出光面引导；而双面银反射片的下表面，则将照射其上的光线反射到导光 块内，以便导光块将光线导向出光面；另外，该双面银反射片可以呈30度至60度倾斜设置在导光块的连接处，可选的的，该双面银反射片呈45度角时，在该双面银反射片上端与导光板上顶面齐平的情况下，该反射片与导光板上顶面的接触面最小，可以避免因双面银反射片的设置而出现条形暗线的可能。
可选的，导光块10还包括：
光源预留位13，设置在倾斜设置的所述双面银反射片111的下部；
所述光源预留位13包括灯座(图中未示出)和安装背光源的灯位(图中未示出)，所述灯座的上表面与所述导光板10的下底面齐平设置；
所述背光源设置在所述光源预留位13处。本实施方案中，具体的，该光源预留位包括灯座和安装背光源的灯位，该灯座的上表面与导光板的下底面实际上应当齐平设置，如此，该背光源便不会出现，光线从双面银反射片的下端斜射到未点亮区域的情况，将每个导光块对应的背光源的光线收束在对应的导光块和局部区域内，减少局部显示时，点亮区域的背光浪费的情况；另外，该光源预留位属于实质的侧光式背光源的设置方式，该45度倾斜设置的双面银反射片的下表面将光源预留位处的光源的光反射到导光块内，同时，由于倾斜设置，将光源预留位遮挡住了，避免因光源预留位处的背光源的设置，而造成背光源局部亮度不均的情况。
可选的，导光块10还包括：
光源预留位13，对应每个所述导光块12分别设置；
每个所述导光块12对应的光源预留位13的控制相互独立。本实施方案中，该光源预留位可以是侧光式背光源的设置方式，也可以是直下式背光源的设置方式，该光源预留位可以设置背光源并对背光源的开关进行控制；其中，每个导光块对应的光源预留位相互独立，以便在局部显示时，进行对应控制，在局部显示的同时，减少背光源的功耗，从而实现绿色节能的目的。
可选的，导光板10和区域间隔件11一体成型。本实施方案中，该 导光板和区域间隔件是一体成型地，在制作导光板时，在导光板中置入区域间隔件，以将导光板分割为导光和背光源控制相互独立的多个区域；具体的，还要在导光板的区域间隔处预留出光源预留位。
可选的，导光块12分别独立成型，多个所述导光块12拼接组成所述导光板10，所述区域间隔件11设置在每两个所述导光块12的连接处；
位于中间的所述导光块12与所述导光板10的外表面均不连通。本实施方案中，该导光块是分别独立成型的，成型后拼装而成该导光板，而区域间隔件便设置在导光块之间的连接处。
可选的，所述区域间隔件11在所述导光板10横向和纵向方向分别贯穿所述导光板10交叉设置有两组，两组所述区域间隔件11将所述导光板10间隔为3*3共九块导光块12；
位于中间的所述导光块与所述导光板的外表面均不连通。本实施方案中，每个导光块可以是相同大小的，也可以是不同大小的，具体根据导光板和显示面板的具体情况确定；另外，本申请的导光块的其中一个可以是设置在整个显示区域的中部，与显示区域四边或者说导光板的外表面均不直接接触，而且该显示面板可以是侧光式背光源面板。
可选的，所述背光源包括第一背光源和第二背光源；
所述第一背光源包括：
第一子光源31，设置在所述背板40相对于所述导光板10的侧壁上；
第二子光源32，设置在所述光源预留位13处；
所述第二背光源均匀排布在所述导光板10的入光面。可选的中，具体的，该第一背光源即侧入式背光源，而该第二背光源即直下式背光源；可选的，该第一子光源可以只设置在该导光板的一侧边，均匀布设多个，也可以是设置在导光板的两侧边，均匀布设多个；另外，该第二子光源，设置在该光源预留处，沿着每两块导光块的连接处均匀布设多个。
在一实施例中，背光源包括直下式背光源。本实施方案中，该背光源也可以是直下式的背光源，配合导光板设置。
本申请的背光模组，包括导光板，该导光板通过分隔件间隔拆分为至少两块导光块，每个导光块将对应于显示界面的一个显示区域，每个导光块区域内的背光源分别控制，如此，当只要点亮其中一个显示区域时，可以对应将其他显示区域的背光源关闭；而由于该区域间隔件的存在，在显示区域内的背光源的光线很好的收束在对应导光块和显示区域内，不会出现因背光源的光线照射到未点亮导光块和显示区域而造成显示区域内的亮度明显降低。
图2是本申请一种显示面板的示意图，参考图4，结合图1-3可知，本申请还公开了一种显示面板200，包括：如本申请任一公开的背光模组100、以及显示模组60和前框70；
所述背光模组100、显示模组60和前框70组装形成所述显示面板。
本申请的显示面板包括背光模组，该背光模组包括导光板，该导光板通过分隔件间隔拆分为至少两块导光块，每个导光块将对应于显示界面的一个显示区域，每个导光块区域内的背光源分别控制，如此，当只需要点亮其中一个显示区域时，可以对应将其他显示区域的背光源关闭；而由于该区域间隔件的存在，在显示区域内的背光源的光线很好的收束在对应导光块和显示区域内，不会出现因背光源的光线照射到未点亮导光块和显示区域而造成显示区域内的亮度明显降低。
本申请的面板可以是TFT-LCD面板(thin film transistor-liquid crystal display)、TN面板(全称为Twisted Nematic，即扭曲向列型面板)、IPS面板(In-PlaneSwitching，平面转换)、VA面板(Multi-domain Vertical Alignment，多象限垂直配向技术)，当然，也可以是其他类型的面板，适用即可。
以上内容是结合具体的实施方式对本申请所作的可选的详细说明， 不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (18)

  1. 一种背光模组，包括：
    导光板；
    背光源，与所述导光板配合设置；以及
    背板，设置为承载所述导光板和背光源；
    所述导光板包括：
    至少两块导光块，以及
    至少一个分隔件，所述分隔件设置在相邻两块所述导光块的至少一相邻面之间，设置为分隔所述导光块。
  2. 如权利要求1所述的一种背光模组，其中，所述分隔件设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置，且所述分隔件与所述导光块在水平方向上的投影面完全重叠。
  3. 如权利要求1所述的一种背光模组，其中，所述分隔件的第一表面和第二表面分别涂布有反射材料或者遮光材料；
    所述分隔件的上端与所述导光板的上顶面齐平，所述分隔件的下端与所述导光板的下底面齐平。
  4. 如权利要求3所述的一种背光模组，其中，所述分隔件为第一表面和第二表面均涂布有银反射材料的双面银反射片，设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置。
  5. 如权利要求4所述的一种背光模组，其中，所述导光块还包括：
    光源预留位，设置在倾斜设置的所述双面银反射片的下部；
    所述光源预留位包括灯座和安装背光源的灯位，所述灯座的上表面与所述导光板的下底面齐平设置；
    所述背光源设置在所述光源预留位处。
  6. 如权利要求1所述的一种背光模组，其中，所述导光板和区域间隔件一体成型。
  7. 如权利要求1所述的一种背光模组，其中，所述导光块分别独立成 型，多个所述导光块拼接组成所述导光板，所述区域间隔件设置在每两个所述导光块的连接处。
  8. 如权利要求1所述的一种背光模组，其中，所述区域间隔件在所述导光板横向和纵向方向分别贯穿所述导光板交叉设置有两组，两组所述区域间隔件将所述导光板间隔为3*3共九块导光块；
    位于中间的所述导光块与所述导光板的外表面均不连通。
  9. 如权利要求1所述的一种背光模组，其中，所述背光源包括第一背光源和第二背光源；
    所述第一背光源包括：
    第一子光源，设置在所述背板相对于所述导光板的侧壁上；以及
    第二子光源，设置在所述光源预留位处；
    所述第二背光源均匀排布在所述导光板的入光面。
  10. 一种显示面板，所述显示面板包括背光模组，包括：
    导光板；
    背光源，与所述导光板配合设置；以及
    背板，设置为承载所述导光板和背光源；
    所述导光板包括：
    至少两块导光块，
    至少一个分隔件，所述分隔件设置在相邻两块所述导光块的至少一相邻面之间，设置为分隔所述导光块。
  11. 如权利要求10所述的一种显示面板，其中，所述分隔件设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置，且所述分隔件与所述导光块在水平方向上的投影面完全重叠。
  12. 如权利要求10所述的一种显示面板，其中，所述分隔件的第一表面和第二表面分别涂布有反射材料或者遮光材料；
    所述分隔件的上端与所述导光板的上顶面齐平，所述分隔件的下端与所述导光板的下底面齐平。
  13. 如权利要求12所述的一种显示面板，其中，所述分隔件为第一表 面和第二表面均涂布有银反射材料的双面银反射片，设置在所述导光板的上顶面和下底面之间，且与所述上顶面和下底面呈30度至60度夹角倾斜设置。
  14. 如权利要求13所述的一种显示面板，其中，所述导光块还包括：
    光源预留位，设置在倾斜设置的所述双面银反射片的下部；
    所述光源预留位包括灯座和安装背光源的灯位，所述灯座的上表面与所述导光板的下底面齐平设置；
  15. 如权利要求10所述的一种显示面板，其中，所述导光板和区域间隔件一体成型。
  16. 如权利要求10所述的一种显示面板，其中，所述导光块分别独立成型，多个所述导光块拼接组成所述导光板，所述区域间隔件设置在每两个所述导光块的连接处。
  17. 如权利要求10所述的一种显示面板，其中，所述区域间隔件在所述导光板横向和纵向方向分别贯穿所述导光板交叉设置有两组，两组所述区域间隔件将所述导光板间隔为3*3共九块导光块；
    位于中间的所述导光块与所述导光板的外表面均不连通。
  18. 如权利要求10所述的一种显示面板，其中，所述背光源包括第一背光源和第二背光源；
    所述第一背光源包括：
    第一子光源，设置在所述背板相对于所述导光板的侧壁上；以及
    第二子光源，设置在所述光源预留位处；
    所述第二背光源均匀排布在所述导光板的入光面。
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