WO2022088266A1 - 背光模组及显示装置 - Google Patents

背光模组及显示装置 Download PDF

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Publication number
WO2022088266A1
WO2022088266A1 PCT/CN2020/128351 CN2020128351W WO2022088266A1 WO 2022088266 A1 WO2022088266 A1 WO 2022088266A1 CN 2020128351 W CN2020128351 W CN 2020128351W WO 2022088266 A1 WO2022088266 A1 WO 2022088266A1
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WO
WIPO (PCT)
Prior art keywords
backlight
driving device
present application
backlights
coordinates
Prior art date
Application number
PCT/CN2020/128351
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English (en)
French (fr)
Inventor
陈黎暄
Original Assignee
Tcl华星光电技术有限公司
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Filing date
Publication date
Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Priority to US17/057,661 priority Critical patent/US20220322508A1/en
Publication of WO2022088266A1 publication Critical patent/WO2022088266A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • G09G3/342Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Definitions

  • the present application relates to display panel technology, and in particular, to a backlight module and a display device.
  • LEDs have gained more and more attention as a light source for refined local control of liquid crystal displays (LCDs), such as the use of amorphous silicon thin film transistor ( ⁇ Si-TFT) glass substrates as backlight control Substrate capable of supporting very high partitioned LED backlights.
  • LCDs liquid crystal displays
  • ⁇ Si-TFT amorphous silicon thin film transistor
  • LEDs use low-power chips, and the number of chips that can be integrated is limited, and because the low-power chips are small in size, the wire arc is drawn too long during wire bonding, making it difficult to manufacture, and there is a risk of wire breakage. Therefore, LEDs currently have natural defects, and the defective rate is about one in a million. At this time, a certain LED is disconnected, which will cause other LEDs connected to the LED to not emit light, and lead to obvious dark areas in the backlight, thus affecting the display. Effect.
  • Embodiments of the present application provide a backlight module and a display device, which can effectively solve the problem of obvious dark areas appearing in the backlight due to a failure of one LED in the backlight module and the same group of LEDs is not lit.
  • an embodiment of the present application provides a backlight module, including: a plurality of backlight lamps, the plurality of backlight lamps are arranged in a plurality of rows and columns; and a plurality of driving devices, each of the driving devices
  • the apparatus controls at least two backlights; wherein there is at least one row and/or at least one column between one of the at least two backlights and at least another one of the at least two backlights.
  • the at least two backlight lamps are connected in series.
  • each of the driving devices respectively controls the first backlight, the second backlight, the third backlight and the fourth backlight.
  • first backlight and the second backlight are located in the same row, and the first backlight and the second backlight are separated from each other by one column.
  • first backlight and the third backlight are located in the same column, and the first backlight and the third backlight are separated from each other by a row.
  • first backlight and the fourth backlight are separated from each other by one column, and the first backlight and the fourth backlight are separated from each other by a row.
  • the backlights controlled by the driving device and the backlights controlled by another driving device are staggered.
  • each of the driving devices includes: a switch tube, the source of the switch tube is connected to the first node; a drive tube, the gate of the drive tube is connected to the first node; and a storage capacitor, One end of the capacitor is connected to the negative voltage, and the other end of the capacitor is connected to the first node.
  • the backlight lamps controlled by each of the driving devices are arranged at intervals from each other.
  • an embodiment of the present application provides a display device including any one of the above-mentioned backlight modules.
  • the advantage of the present application is that, compared with the prior art, the present application controls at least one line and/or between the driving device controlling one backlight in a group of light sources and the driving device controlling at least another backlight in a group of light sources. At least one column is spaced apart, which can effectively reduce the influence of the local dark area caused by the failure of the driving device to control a group of light sources, and ensure the normal display of the display device.
  • FIG. 1 is a schematic structural diagram of a circuit of a backlight module provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the arrangement of backlight lamps according to Embodiment 1 of the present application.
  • FIG. 3 is a schematic diagram of the arrangement of the backlight provided according to the second embodiment of the present application.
  • FIG. 4 is a schematic diagram of the arrangement of the backlight provided according to the third embodiment of the present application.
  • FIG. 5 is a schematic diagram of the arrangement of backlight lamps according to Embodiment 4 of the present application.
  • FIG. 6 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • the simulated display screen touch unit is connected to the head tracking unit, and is used for acquiring the movement path of the sensing cursor in the display device.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • An embodiment of the present application provides a backlight module including: a plurality of backlight lamps 10, the plurality of backlight lamps 10 are arranged in multiple rows and columns; and a plurality of driving devices 30, each of the driving devices 30 controls at least two One backlight 10 of the at least two backlights 10 and at least another backlight 10 of the at least two backlights 10 are separated by at least one row and/or at least one column.
  • FIG. 1 which is a schematic diagram of a circuit structure of a backlight module provided by an embodiment of the present application
  • the at least two backlight lamps 10 are connected in series.
  • the driving device 30 in FIG. 1 controls four backlight lamps 10 , but it is not limited to this.
  • the driving device 30 can also control six backlight lamps 10 or the driving device 30 can control eight backlight lamps 10 .
  • Etc., in other embodiments, other numbers of backlight lamps 10 may be provided as required. Influenced by the charging capability of the capacitor in the driving device 30 , the driving device 30 controls the number of backlight lamps 10 not to exceed ten.
  • Each of the driving devices 30 respectively controls the first backlight, the second backlight, the third backlight and the fourth backlight.
  • the first backlight and the second backlight are located in the same row and the first backlight and the second backlight are separated from each other by a column.
  • the first backlight and the third backlight are located in the same column, and the first backlight and the third backlight are separated from each other by a row.
  • the first backlight and the fourth backlight are separated from each other by a column, and the first backlight and the fourth backlight are separated from each other by a row.
  • Each of the driving devices 30 includes: a switching transistor T2, the source of the switching transistor T2 is connected to the first node 20; a driving transistor T1, the gate of the driving transistor T1 is connected to the first node 20; and A storage capacitor C, one end of the capacitor is connected to the negative voltage VSS, and the other end of the capacitor is connected to the first node 20 .
  • the anode of the backlight 10 is connected to the positive voltage VDD.
  • FIG. 2 it is a schematic diagram of the arrangement of the backlight lamps 10 provided in the first embodiment of the application.
  • Each of the driving devices 30 controls two backlight lamps 10 , and the position of the backlight lamp 10 in the lower left corner in FIG. 2 is represented by coordinates (1, 1) for the convenience of description.
  • the coordinates of the backlight 10 controlled by the driving device 30 are (1, 1) and (1, 3).
  • the coordinates of the backlight 10 controlled by the other driving device 30 spaced therefrom are (1, 2) and (1, 4).
  • the backlights 10 at adjacent positions are (1,2) and (1,4) or the coordinates are (2,1) and (2,3)
  • the adjacent positions still emit light normally, so that the influence of the local dark area caused by the failure of the driving device 30 to control a group of light sources can be effectively reduced, and the normal display of the display device can be ensured.
  • the advantage of the present application is that, compared with the prior art, at least one row and/or at least an interval between the driving device controlling one backlight in a group of light sources and the driving device controlling at least another backlight in a group of light sources.
  • One column can effectively reduce the influence of the local dark area caused by the failure of the driving device to control a group of light sources, and ensure the normal display of the display device.
  • FIG. 3 it is a schematic diagram of the arrangement of the backlight lamps 10 provided in the second embodiment of the application.
  • Each of the driving devices 30 controls two backlight lamps 10 , and the position of the backlight lamp 10 in the lower left corner in FIG. 3 is represented by coordinates (1, 1) for the convenience of description.
  • the coordinates of the backlight 10 controlled by the driving device 30 are (1, 1) and (1, 4).
  • the coordinates of the backlight lamps 10 controlled by the other two adjacent driving devices 30 are (1,2), (1,5), (1,3) and (1,6).
  • the backlights 10 at adjacent positions are (1,2) and (1,3) or the coordinates are (2,1) and (2,4), etc.
  • the adjacent positions still emit light normally, which can effectively reduce the influence of the local dark area caused by the failure of the driving device 30 to control a group of light sources, and ensure the normal display of the display device.
  • the advantage of the present application is that, compared with the prior art, at least one row and/or at least an interval between the driving device controlling one backlight in a group of light sources and the driving device controlling at least another backlight in a group of light sources.
  • One column can effectively reduce the influence of the local dark area caused by the failure of the driving device to control a group of light sources, and ensure the normal display of the display device.
  • FIG. 4 it is a schematic diagram of the arrangement of the backlight lamps 10 provided in the third embodiment of the application.
  • Each of the driving devices 30 controls four backlight lamps 10 , and the position of the backlight lamp 10 in the lower left corner in FIG. 4 is represented by coordinates (1, 1) for the convenience of description.
  • the coordinates of the backlight 10 controlled by the driving device 30 are (1,1), (1,3), (2,1) and (2,3).
  • the coordinates of the backlight 10 controlled by the adjacent driving device 30 are (1,2), (1,4), (2,2), (2,4) and so on.
  • the coordinates are (1, 3), (2, 1) due to the series connection. ) and (2,3) backlight 10 will also not light up.
  • the backlights 10 at adjacent positions are controlled by different driving devices 30 , therefore
  • the adjacent positions still emit light normally, so that the influence of the local dark area caused by the failure of the driving device 30 to control a group of light sources can be effectively reduced, and the normal display of the display device can be ensured.
  • the advantage of the present application is that, compared with the prior art, at least one row and/or at least an interval between the driving device controlling one backlight in a group of light sources and the driving device controlling at least another backlight in a group of light sources.
  • One column can effectively reduce the influence of the local dark area caused by the failure of the driving device to control a group of light sources, and ensure the normal display of the display device.
  • FIG. 5 it is a schematic diagram of the arrangement of the backlight lamps 10 provided in the fourth embodiment of the application.
  • Each of the driving devices 30 controls four backlight lamps 10 , and the position of the backlight lamp 10 in the lower left corner in FIG. 5 is represented by coordinates (1, 1) for the convenience of description.
  • the coordinates of the backlight 10 controlled by the driving device 30 are the first backlight (1, 1), the second backlight (1, 3), the third backlight ( 3,1) and the fourth backlight (3,3).
  • the coordinates of the backlight 10 that the backlights controlled by the driving device are arranged at intervals, and the coordinates of the backlights 10 controlled by the adjacent driving device 30 are (1, 2), (1, 4) , (2,1) and (2,3), etc. From the coordinates of the backlight 10 , it can also be seen that the backlight controlled by the driving device is staggered with the backlight controlled by another driving device.
  • the advantage of the present application is that, compared with the prior art, at least one row and/or at least an interval between the driving device controlling one backlight in a group of light sources and the driving device controlling at least another backlight in a group of light sources.
  • One column can effectively reduce the influence of the local dark area caused by the failure of the driving device to control a group of light sources, and ensure the normal display of the display device.
  • the display device 200 includes the backlight module described in any of the above embodiments.
  • the display device 200 may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • the display device 200 of this embodiment adopts the backlight module described in the above embodiments, the display effect is better.
  • the display device 200 in this embodiment may also include other conventional structures, such as a power supply unit, a display driving unit, and the like.

Abstract

一种背光模组及显示装置(200)。通过将驱动装置(30)控制一组光源中的一个背光灯(10)与驱动装置(30)控制一组光源中的至少另一个背光灯(10)之间至少间隔一行和/或至少间隔一列,能够有效降低驱动装置(30)控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置(200)的正常显示。

Description

背光模组及显示装置 技术领域
本申请涉及显示面板技术,尤其涉及一种背光模组及显示装置。
背景技术
LED作为液晶显示器(Liquid Crystal Display,简称LCD)液晶显示器的精细化局域控制的光源,已经获得了越来越多的关注,例如使用非晶硅薄膜晶体管(αSi-TFT)玻璃基板作为背光控制基板,能够支持非常高分区的LED背光。
现有的LED采用小功率芯片,可以集成的芯片个数受到限制,且因为小功率芯片尺寸小,焊线时,线弧拉的过长,制作困难,而且存在断线风险。因此LED目前存在天然的缺陷,其不良率约百万分之一,此时某颗LED断路,会引起与该LED相连的其他LED也不发光,并且导致背光出现明显的暗区,从而影响显示效果。
技术问题
本申请实施例提供一种背光模组及显示装置,有效解决背光模组中由于一个LED不良并引起同一组LED不亮而导致背光出现明显的暗区的问题。
技术解决方案
根据本申请的一方面,本申请实施例提供一种背光模组,包括:多个背光灯,所述多个背光灯排列成多行和多列;以及多个驱动装置,每一所述驱动装置控制至少两个背光灯;其中所述至少两个背光灯中的一个背光灯与所述至少两个背光灯中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列。
进一步地,所述至少两个背光灯通过串联方式连接。
进一步地,每一所述驱动装置分别控制第一背光灯、第二背光灯、第三背光灯、第四背光灯。
进一步地,所述第一背光灯与所述第二背光灯位于同一行且所述第一背光灯与所述第二背光灯相互间隔一列。
进一步地,所述第一背光灯与所述第三背光灯位于同一列且所述第一背光灯与所述第三背光灯相互间隔一行。
进一步地,所述第一背光灯与所述第四背光灯相互间隔一列且所述第一背光灯与所述第四背光灯相互间隔一行。
进一步地,所述驱动装置所控制的背光灯与另一所述驱动装置所控制的背光灯交错排列。
进一步地,每一所述驱动装置包括:一开关管,所述开关管的源极连接至第一节点;一驱动管,所述驱动管的栅极连接至第一节点;以及一存储电容,所述电容的一端连接负电压,所述电容的另一端连接至第一节点。
进一步地,每一所述驱动装置所控制的背光灯相互间隔排列。
根据本申请的另一方面,本申请实施例提供一种显示装置,包括上述任一所述的背光模组。
有益效果
本申请的优点在于,相较于现有技术,本申请通过将驱动装置控制一组光源中的一个背光灯与驱动装置控制一组光源中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列,能够有效降低驱动装置控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,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,对于本领域技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种背光模组电路结构示意图。
图2为本申请实施例一所提供的背光灯排布示意图。
图3为本申请实施例二所提的供背光灯排布示意图。
图4为本申请实施例三所提的供背光灯排布示意图。
图5为本申请实施例四所提的供背光灯排布示意图。
图6为本申请实施例所提供的显示装置结构示意图。
本发明的实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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”仅用于描述目的,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所述特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
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,也可以是电连接或可以相互通讯;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或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。在本实施例中,所述模拟显示屏触摸单元与所述头部追踪单元连接,用于获取所述显示设备中的感应光标的移动路径。
在本申请中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本申请。此外,本申请可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本申请提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供一种背光模组包括:多个背光灯10,所述多个背光灯10排列成多行和多列;以及多个驱动装置30,每一所述驱动装置30控制至少两个背光灯10;其中所述至少两个背光灯10中的一个背光灯10与所述至少两个背光灯10中的至少另一个背光灯10之间至少间隔一行和/或至少间隔一列。
如图1所示,为本申请实施例提供的背光模组电路结构示意图,所述至少两个背光灯10通过串联方式连接。需要说明的是,本申请实施例图1中驱动装置30控制四个背光灯10,但不限于此,例如还可以为驱动装置30控制六个背光灯10或驱动装置30控制八个背光灯10等等,在其他实施例中,可以根据需要设置其他数量的背光灯10。受驱动装置30中的电容充电能力的影响,驱动装置30控制背光灯10的数量不超过十个。
每一所述驱动装置30分别控制第一背光灯、第二背光灯、第三背光灯、第四背光灯。在部分实施例中,所述第一背光灯与所述第二背光灯位于同一行且所述第一背光灯与所述第二背光灯相互间隔一列。在部分实施例中,所述第一背光灯与所述第三背光灯位于同一列且所述第一背光灯与所述第三背光灯相互间隔一行。在部分实施例中,所述第一背光灯与所述第四背光灯相互间隔一列且所述第一背光灯与所述第四背光灯相互间隔一行。
每一所述驱动装置30包括:一开关管T2,所述开关管T2的源极连接至第一节点20;一驱动管T1,所述驱动管T1的栅极连接至第一节点20;以及一存储电容C,所述电容的一端连接负电压VSS,所述电容的另一端连接至第一节点20。背光灯10的阳极连接正电压VDD。
如图2所示,为申请实施例一所提供背光灯10排布示意图。
其中每一所述驱动装置30控制两个背光灯10,为了便于说明将图2中左下角背光灯10的位置用坐标(1,1)表示。
由此可以看出,本申请实施例一中,所述驱动装置30控制的背光灯10坐标为(1,1)和(1,3)。与其相间隔的另一所述驱动装置30控制的背光灯10坐标为(1,2)和(1,4)。如此设置,当驱动装置30控制的背光灯10中的坐标为(1,1)的背光灯10发生不良(例如断路)时,由于串联连接,因此坐标为(1,3)的背光灯10也会不亮。此时由于相邻位置(例如坐标为(1,2)和(1,4)或坐标为(2,1)和(2,3))处的背光灯10是由不同驱动装置30控制,因此相邻位置依然正常发光,从而能够有效降低驱动装置30控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
本申请的优点在于,相较于现有技术,通过将驱动装置控制一组光源中的一个背光灯与驱动装置控制一组光源中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列,能够有效降低驱动装置控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
如图3所示,为申请实施例二所提供背光灯10排布示意图。
其中每一所述驱动装置30控制两个背光灯10,为了便于说明将图3中左下角背光灯10的位置用坐标(1,1)表示。
由此可以看出,本申请实施例二中,所述驱动装置30控制的背光灯10坐标为(1,1)和(1,4)。与其相邻的另两个驱动装置30控制的背光灯10坐标为(1,2)、(1,5)、(1,3)和(1,6)。如此设置,当驱动装置30控制的背光灯10中的坐标为(1,1)的背光灯10发生不良(例如断路)时,由于串联连接,因此坐标为(1,4)的背光灯10也会不亮。此时由于相邻位置(例如坐标为(1,2)和(1,3)或坐标为(2,1)和(2,4)等等)处的背光灯10是由不同驱动装置30控制,因此相邻位置依然正常发光,从而能够有效降低驱动装置30控制一组光源出现不良后引起的局部暗区的影响,保证显示装置的正常显示。
本申请的优点在于,相较于现有技术,通过将驱动装置控制一组光源中的一个背光灯与驱动装置控制一组光源中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列,能够有效降低驱动装置控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
如图4所示,为申请实施例三所提供背光灯10排布示意图。
其中每一所述驱动装置30控制四个背光灯10,为了便于说明将图4中左下角背光灯10的位置用坐标(1,1)表示。
由此可以看出,本申请实施例三中,所述驱动装置30控制的背光灯10坐标为(1,1)、(1,3)、(2,1)和(2,3)。与其相邻的驱动装置30控制的背光灯10坐标为(1,2)、(1,4)、(2,2)和(2,4)等等。如此设置,当驱动装置30控制的背光灯10中的坐标为(1,1)的背光灯10发生不良(例如断路)时,由于串联连接,因此坐标为(1,3)、(2,1)和(2,3)的背光灯10也会不亮。此时由于相邻位置(例如坐标为(1,2)、(1,4)、(2,2)和(2,4)等等)处的背光灯10是由不同驱动装置30控制,因此相邻位置依然正常发光,从而能够有效降低驱动装置30控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
本申请的优点在于,相较于现有技术,通过将驱动装置控制一组光源中的一个背光灯与驱动装置控制一组光源中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列,能够有效降低驱动装置控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
如图5所示,为申请实施例四所提供背光灯10排布示意图。
其中每一所述驱动装置30控制四个背光灯10,为了便于说明将图5中左下角背光灯10的位置用坐标(1,1)表示。
由此可以看出,本申请实施例四中,所述驱动装置30控制的背光灯10坐标为第一背光灯(1,1)、第二背光灯(1,3)、第三背光灯(3,1)和第四背光灯(3,3)。而且,从背光灯10的标坐标可以看出所述驱动装置所控制的背光灯相互间隔排列,与其相邻的驱动装置30控制的背光灯10坐标为(1,2)、(1,4)、(2,1)和(2,3)等等,从背光灯10的标坐标还可以看出所述驱动装置所控制的背光灯与另一所述驱动装置所控制的背光灯交错排列。如此设置,当驱动装置30控制的背光灯10中的坐标为(1,1)的背光灯10发生不良(例如断路)时,由于串联连接坐标为(1,3)、(3,1)和(3,3)的背光灯10也会不亮。此时由于相邻位置(例如坐标为(1,2)、(1,4)、(2,1)和(2,3)等等)处的背光灯10是由不同驱动装置30控制,因此相邻位置依然正常发光,从而能够有效降低驱动装置30控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
本申请的优点在于,相较于现有技术,通过将驱动装置控制一组光源中的一个背光灯与驱动装置控制一组光源中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列,能够有效降低驱动装置控制一组光源出现不良后所引起的局部暗区的影响,保证显示装置的正常显示。
由上述实施例可以看出,当驱动装置30控制的背光灯10相互之间间隔的行或列越多,该驱动装置控制30的背光灯10发生不良时引起的局部暗区的影响就会越小。
如图6所示,为本申请实施例所提供的显示装置结构示意图,所述显示装置200包括上述任一实施例所述的背光模组。
该显示装置200可以为:手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
当本实施例的显示装置200采用上述实施例所述的背光模组时,其显示效果更好。
当然,本实施例的显示装置200中还可以包括其他常规结构,如电源单元、显示驱动单元等。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想;本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (10)

  1. 一种背光模组,其包括:
    多个背光灯,所述多个背光灯排列成多行和多列;以及
    多个驱动装置,每一所述驱动装置控制至少两个背光灯;其中
    所述至少两个背光灯中的一个背光灯与所述至少两个背光灯中的至少另一个背光灯之间至少间隔一行和/或至少间隔一列。
  2. 根据权利要求1所述的背光模组,其中,所述至少两个背光灯通过串联方式连接。
  3. 根据权利要求1所述的背光模组,其中,每一所述驱动装置分别控制第一背光灯、第二背光灯、第三背光灯、第四背光灯。
  4. 根据权利要求3所述的背光模组,其中,所述第一背光灯与所述第二背光灯位于同一行且所述第一背光灯与所述第二背光灯相互间隔一列。
  5. 根据权利要求3所述的背光模组,其中,所述第一背光灯与所述第三背光灯位于同一列且所述第一背光灯与所述第三背光灯相互间隔一行。
  6. 根据权利要求3所述的背光模组,其中,所述第一背光灯与所述第四背光灯相互间隔一列且所述第一背光灯与所述第四背光灯相互间隔一行。
  7. 根据权利要求1所述的背光模组,其中,所述驱动装置所控制的背光灯与另一所述驱动装置所控制的背光灯交错排列。
  8. 根据权利要求1所述的背光模组,其中,每一所述驱动装置包括:
    一开关管,所述开关管的源极连接至第一节点;
    一驱动管,所述驱动管的栅极连接至第一节点;以及
    一存储电容,所述电容的一端连接负电压,所述电容的另一端连接至第一节点。
  9. 根据权利要求1所述的背光模组,其中,每一所述驱动装置所控制的背光灯相互间隔排列。
  10. 一种显示装置,其包括权利要求1所述的背光模组。
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