WO2017008339A1 - 一种显示面板及电子设备 - Google Patents

一种显示面板及电子设备 Download PDF

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Publication number
WO2017008339A1
WO2017008339A1 PCT/CN2015/085538 CN2015085538W WO2017008339A1 WO 2017008339 A1 WO2017008339 A1 WO 2017008339A1 CN 2015085538 W CN2015085538 W CN 2015085538W WO 2017008339 A1 WO2017008339 A1 WO 2017008339A1
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WO
WIPO (PCT)
Prior art keywords
display panel
reflective
driving unit
sheet
light guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/085538
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English (en)
French (fr)
Inventor
姜宇锐
李得俊
崔宏青
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.)
Wuhan China Star Optoelectronics Technology Co Ltd
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd, Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/783,414 priority Critical patent/US9897797B2/en
Publication of WO2017008339A1 publication Critical patent/WO2017008339A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0933—Systems for active beam shaping by rapid movement of an element
    • 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
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133601—Illuminating devices for spatial active dimming

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a MEMS display panel.
  • Liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal display devices on the market are backlight type liquid crystal display devices, which include a liquid crystal display panel and a backlight module.
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates, and the liquid crystal molecules are controlled to change direction by energizing or not, and the light of the backlight module is changed. Refracted to produce a picture.
  • the main structure of the LCD panel on the market is as shown in FIG. 1 , including a backlight source 1, a light guide plate 2, a brightness enhancement film 3, a lower polarizer 4, a TFT substrate 5, a liquid crystal layer 6, a color filter substrate 7, and an upper polarized light.
  • Controlling the steering of the liquid crystal molecules by controlling the voltage applied to the liquid crystal layer, thereby causing a change in the polarization direction of the linearly polarized light generated by the backlight through the lower polarizer, and the light is transmitted through the color filter substrate to form different colors.
  • Light because the polarization direction of the light is different from the transmission axis of the upper polarizer, the intensity of the light emitted by the light can be controlled, thus forming a picture that we need to display.
  • the liquid crystal display liquid crystal is not self-luminous, the light source must be provided by the backlight.
  • the alignment of the liquid crystal molecules cannot completely meet the design requirements, the pixels cannot be completely turned off when the black screen is displayed, and some light is emitted. Can be emitted from the panel, resulting in low contrast, unable to meet consumer demand for high image quality.
  • MEMS Micro Electro Mechanical System
  • Another object of the present invention is to provide an electronic device using the above display panel.
  • a display panel includes a brightness enhancement film, a light guide plate and a backlight source, wherein the brightness enhancement film is laminated with the light guide plate, and the backlight source is disposed at a side of the light guide plate, wherein the The display panel further includes a MEMS reflective plate disposed at the bottom of the light guide plate, the MEMS reflective plate includes a control substrate for controlling an operating state of the reflective unit, and a reflective unit including a driving unit of the control substrate and a reflection sheet rotatably connected to the driving unit, wherein the driving unit is configured to drive the reflection sheet to rotate.
  • the reflection azimuth of the reflection sheet ranges from 0 to 360°.
  • a spherical pair is disposed between the reflective sheet and the driving unit, and the spherical surface includes a spherical sub-shell structure and a spherical sub-ball head, and the spherical sub-ball head is movably mounted on the spherical sub-shell The inner surface of the body structure.
  • the reflective sheet is a white reflective sheet or a silver reflective sheet, and the surface thereof is coated with a reflective layer.
  • the reflective sheet is a white reflective sheet or a silver reflective sheet, and the surface thereof is coated with a reflective layer.
  • the display panel further includes a common electrode line and a plurality of pixel regions, the pixel region further includes a thin film transistor, a drain of the thin film transistor is connected to the input end of the driving unit, and the output end of the driving unit is connected
  • the common electrode line is described.
  • each of the pixel regions includes at least one of the reflective units.
  • the backlight source is a white LED light source or an RGB three primary color LED light source.
  • the present invention also discloses an electronic device, comprising: a display panel comprising a brightness enhancement film, a light guide plate and a backlight source, wherein the brightness enhancement film is laminated with the light guide plate, and the backlight source is disposed at the a side of the light guide plate, the display panel further includes a MEMS reflective plate disposed at the bottom of the light guide plate, the MEMS reflective plate includes a control substrate and a reflection unit, wherein the control substrate is used to control the working state of the reflective unit
  • the reflecting unit includes a driving unit disposed on the control substrate and a reflective sheet rotatably coupled to the driving unit, and the driving unit is configured to drive the reflective sheet to rotate.
  • the reflection azimuth of the reflection sheet ranges from 0 to 360°.
  • a spherical pair is disposed between the reflective sheet and the driving unit, and the spherical surface includes a spherical sub-shell structure and a spherical sub-ball head, and the spherical sub-ball head is movably mounted on the spherical sub-shell The inner surface of the body structure.
  • the reflective sheet is a white reflective sheet or a silver reflective sheet, and the surface thereof is coated with a reflective layer.
  • the reflective sheet is a white reflective sheet or a silver reflective sheet, and the surface thereof is coated with a reflective layer.
  • the display panel further includes a common electrode line and a plurality of pixel regions, and the pixel region further A thin film transistor is included, a drain of the thin film transistor is connected to an input end of the driving unit, and an output end of the driving unit is connected to the common electrode line.
  • each of the pixel regions includes at least one of the reflective units.
  • the backlight source is a white LED light source or an RGB three primary color LED light source.
  • the present invention controls the backlight light of each pixel region to improve the dynamics of each pixel region by providing a method of rotating the reflective sheet in each pixel region to reflect the light of the pixel-closed region to the adjacent pixel-on region.
  • the purpose of contrast is to improve the display of the display panel.
  • FIG. 1 is a schematic structural view of a prior art LED panel
  • FIG. 2 is a schematic structural view of an LED panel of the present invention
  • FIG 3 is a schematic view showing the structure of a MEMS reflecting plate.
  • a display panel 100 includes an upper polarizer 8 , a color filter substrate 7 , a liquid crystal layer 6 , a TFT substrate 5 , a lower polarizer 4 , and a brightness enhancement film 3 which are sequentially disposed from top to bottom.
  • a light guide plate 2 a MEMS reflector 20, a backlight source 1 is disposed on a side of the light guide plate 2, that is, the MEMS reflector 20 is disposed at the bottom of the light guide plate 2, and the MEMS reflector 20 includes a control substrate 11 and A reflecting unit (not numbered) including a driving unit 12 disposed on the control substrate 11 and a reflection sheet 10 rotatably coupled to the driving unit 12.
  • the driving unit 12 is configured to drive the reflection sheet 10 to rotate, thereby changing the reflection direction of the light.
  • the reflection sheet 10 and the driving unit 12 are connected by a spherical pair 30.
  • the spherical pair includes a spherical sub-housing structure and a spherical sub-internal ball head, and the spherical sub-internal ball
  • the head movement is mounted on the inner surface of the spherical sub-housing structure.
  • the spherical pair has three degrees of freedom and can be arbitrarily rotated in the space, thereby increasing the rotation range of the reflection sheet 10. In particular, the rotation azimuth angle of the reflection sheet 10 can be ensured by the spherical sub-connection. -360°.
  • the display panel 100 includes a plurality of pixel regions, and one pixel region refers to a unit capable of uniformly controlling brightness, and each pixel region is composed of a plurality of pixels. Therefore, the reflected light in the pixel region is composed of at least one reflective unit. In other words, the reflected light of different pixel regions is controlled by the reflective unit, for example, when the pixel corresponding to the pixel region of the reflective unit is turned off, the driving The unit 12 drives the rotation of the reflective sheet to reflect the light of the pixel region to the pixel region opened by the adjacent pixel, thereby improving the utilization of the light energy, reducing the power consumption of the display panel, and improving the pixel area. Dynamic contrast for improved display.
  • the display panel 100 further includes a common electrode line (not shown), a plurality of intersecting gate lines (not shown), and a data line (not shown), a thin film transistor, and the gate is It refers to the entirety of the gate electrode and the gate wiring (also referred to as a gate line, a gate signal line, a scan line, a scanning signal line, etc.), or a part of these.
  • the gate electrode refers to a conductive film in a portion in which a gate insulating film is overlapped with a semiconductor forming a channel region. Further, a portion of the gate electrode sometimes overlaps with an LDD (Lightly Doped Drain) region or a source region (or a drain region) with a gate insulating film interposed therebetween.
  • the gate wiring refers to a wiring for connecting gate electrodes of respective transistors, a wiring for connecting between gate electrodes of each pixel, or a wiring for connecting gate electrodes and other wirings.
  • a portion (region, conductive film, wiring, or the like) formed by forming the same material as the gate electrode and forming the same island as the gate electrode may also be referred to as a gate electrode.
  • a portion (region, conductive film, wiring, or the like) formed by forming the same material as the gate wiring and forming the same island wiring as the gate wiring may be referred to as a gate wiring. Strictly speaking, such a portion (region, conductive film, wiring, etc.) sometimes does not overlap with the channel region, or does not have a function of achieving connection with other gate electrodes.
  • portions regions, conductive films, wirings, and the like which are formed by forming the same material as the gate electrode or the gate wiring and forming the same material as the gate electrode or the gate wiring. Therefore, such a portion (region, conductive film, wiring, etc.) can also be referred to as a gate electrode or a gate wiring.
  • the gate of the thin film transistor is connected to the gate line, the source is connected to the data line, the input end of the driving unit 12 is connected to the drain of the thin film transistor, and the output end is connected to the common electrode line.
  • Driving unit 11 through thin film transistor A drive signal is provided so that the content displayed in each pixel area can be independently controlled.
  • the color filter substrate 7 is used for coloring the image emitted by the backlight source through the color filter substrate 7, and the color filter substrate 1 includes an RGB color film layer (ie, a red color film, a green color). Film and blue color film) (not shown).
  • RGB color film layer ie, a red color film, a green color.
  • Film and blue color film (not shown).
  • the reflective sheet 10 is a reflective sheet having high reflectivity for improving the front view brightness of the display panel 100 when a certain light source is output.
  • the reflective sheet 10 is a white reflective sheet or a silver reflective sheet, and its surface is coated with a reflective layer.
  • the coated reflective layer is made of a reflective material having a reflectance of 50% or more to improve the reflection effect.
  • a cold cathode tube or an LED Light Emitting Diode
  • a white LED may be used, or an LED of each color (for example, white, red, blue, green, cyan, magenta, yellow, etc.) may be combined.
  • color purity can be improved because the wavelength peak of light is sharp.
  • the light guide plate is arranged to realize a uniform surface light source.
  • the light guide plate 2 is made of a substrate of a polymethyl methacrylate (PMMA)/polycarbonate (PC), which is used to convert a line source into a surface source.
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • the present invention also provides an electronic device using the above display panel, which may be a clock with a display panel, a watch with a display panel, a personal computer, a liquid crystal television, a viewfinder type or a direct view type video recorder.
  • Navigation device pager, electronic notebook, calculator, word processor, workstation, videophone, POS terminal, etc.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

一种显示面板（100），包括增亮膜（3）、导光板（2）和背光光源（1），所述增亮膜（3）与所述导光板（2）层叠设置，所述背光光源（1）设于导光板（2）侧边，其特征在于，所述显示面板（100）还包括置于所述导光板（2）底部的MEMS反射板（20），所述MEMS反射板（20）包括控制基板（11）和反射单元，所述控制基板（11）用于控制所述反射单元的工作状态，所述反射单元包括设置在所述控制基板（11）的驱动单元（12）和与所述驱动单元（12）转动连接的反射片（10），所述驱动单元（12）用于驱动所述反射片（10）旋转。通过在每个像素区域设置旋转反射片的方法，以将像素关闭区域的光线反射到邻近的像素开启区域，达到对每个像素区域的背光光线进行控制，以提高每个像素区域的动态对比度的目的，从而提高显示面板显示的效果。

Description

一种显示面板及电子设备
本发明要求2015年7月15日递交的发明名称为“光阀及显示装置”的申请号201510416772.8的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，具体涉及一种微机电系统显示面板。
背景技术
液晶显示装置(LCD，Liquid Crystal Display)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组(backlight module)。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
目前，市场上的LCD面板的主要结构如图1所示，包括背光光源1、导光板2、增亮膜3、下偏光片4、TFT基板5、液晶层6、彩膜基板7、上偏光片8、反射片9。通过控制施加在液晶层上的电压控制液晶分子的转向，从而使由背光发出经过下偏光片产生的线偏振光的偏振方向发生一点角度的改变，光透过彩膜基板后形成不同的颜色的光，由于光的偏振方向与上偏光片的透过轴不同夹角，光出射光的强弱就可以控制，从而形成的我们需要显示的画面。
但是在现有技术中，由于液晶显示器液晶并非自发光，必须藉由背光提供光源，但由于液晶分子的配向无法完全符合设计要求等原因，在显示黑画面时，像素无法完全关闭，有一些光线能从面板中发出，造成了对比度较低，无法满足消费者对于高画质的要求。
发明内容
本发明的目的在于提供一种使用MEMS(微机电系统)的显示面板，以提高显示面板的动态对比度，以增强显示效果。
本发明的另一目的在于提供一种使用上述显示面板的电子设备。
为了实现上述目的，本发明实施方式提供如下技术方案：
本发明揭露的一种显示面板，包括增亮膜、导光板和背光光源，所述增亮膜与所述导光板层叠设置，所述背光光源设于所述导光板侧边，其中，所述显示面板还包括置于所述导光板底部的MEMS反射板，所述MEMS反射板包括控制基板和反射单元，所述控制基板用于控制所述反射单元的工作状态，所述反射单元包括设置在所述控制基板的驱动单元和与所述驱动单元转动连接的反射片，所述驱动单元用于驱动所述反射片旋转。
其中，所述反射片的转动方位角范围为0-360°。
其中，所述反射片与所述驱动单元之间设有球面副，所述球面副包括球面副壳体结构和球面副内部球头，所述球面副内部球头活动安装在所述球面副壳体结构的内表面。
其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
其中，所述显示面板还包括公共电极线、多个像素区域，所述像素区域还包括薄膜晶体管，所述薄膜晶体管的漏极与所述驱动单元输入端连接，所述驱动单元输出端连接所述公共电极线。
其中，每个所述像素区域之内包含至少一个所述反射单元。
其中，所述背光光源是一白色LED光源或一RGB三原色LED光源。
本发明还揭示一种电子设备，其中，包括显示面板，所述显示面板包括增亮膜、导光板和背光光源，所述增亮膜与所述导光板层叠设置，所述背光光源设于所述导光板侧边，所述显示面板还包括置于所述导光板底部的MEMS反射板，所述MEMS反射板包括控制基板和反射单元，所述控制基板用于控制所述反射单元的工作状态，所述反射单元包括设置在所述控制基板的驱动单元和与所述驱动单元转动连接的反射片，所述驱动单元用于驱动所述反射片旋转。
其中，所述反射片的转动方位角范围为0-360°。
其中，所述反射片与所述驱动单元之间设有球面副，所述球面副包括球面副壳体结构和球面副内部球头，所述球面副内部球头活动安装在所述球面副壳体结构的内表面。
其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
其中，所述显示面板还包括公共电极线、多个像素区域，所述像素区域还 包括薄膜晶体管，所述薄膜晶体管的漏极与所述驱动单元输入端连接，所述驱动单元输出端连接所述公共电极线。
其中，每个所述像素区域之内包含至少一个所述反射单元。
其中，所述背光光源是一白色LED光源或一RGB三原色LED光源。
本发明实施例具有如下优点或有益效果：
本发明通过在每个像素区域设置旋转反射片的方法，以将像素关闭区域的光线反射到邻近的像素开启区域，达到对每个像素区域的背光光线进行控制，以提高每个像素区域的动态对比度的目的，从而提高显示面板显示的效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术的LED面板结构示意图；
图2是本发明LED面板结构示意图；
图3是MEMS反射板结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图2，本发明实施例提供的显示面板100，包括从上到下依次设置的上偏光片8、彩膜基板7、液晶层6、TFT基板5、下偏光片4、增亮膜3、导光板2、MEMS反射板20，所述导光板2侧边设有背光光源1，即所述MEMS反射板20置于所述导光板2底部，所述MEMS反射板20包括控制基板11和反射单元(未编号)，所述反射单元包括设置在所述控制基板11的驱动单元12、与所述驱动单元12转动连接的反射片10。所述所述驱动单元12用于驱动所述反射片10旋转，进而改变光线的反射方向。
进一步的，请参阅图3，所述反射片10与所述驱动单元12通过球面副30的形式连接，所述球面副包括球面副壳体结构和球面副内部球头，所述球面副内部球头活动安装在球面副壳体结构的内表面。所述球面副具有三个自由度，能够在空间内任意旋转，增大了所述反射片10的旋转范围，特别的，通过球面副连接可以保证所述反射片10的转动方位角范围为0-360°。
进一步的，所述显示面板100包括多个像素区域，一个像素区域指的是能够统一控制亮度的一个单元，每个像素区域由多个像素组成。因此，在所述像素区域的的反射光线至少由一个反射单元组成，换而言之，通过反射单元控制不同像素区域的反射光线，例如，当反射单元对应的像素区域像素关闭时，所述驱动单元12驱动所述反射片旋转，将该像素区域的光线反射到相邻的像素开启的像素区域，这样不仅提高了光能的利用率，减小了显示面板的功耗，还可以提高像素区域的动态对比度，提高显示效果。
进一步的，所述显示面板100还包括公共电极线(图未示出)、多条交叉设置的栅极线(图未示出)和数据线(图未示出)、薄膜晶体管，栅极是指包括栅电极和栅极布线(也称为栅极线、栅极信号线、扫描线、扫描信号线等)的整体，或者是指这些中的一部分。栅电极指的是其中间夹着栅极绝缘膜与形成沟道区的半导体重叠的部分的导电膜。此外，栅电极的一部分有时其中间夹着栅极绝缘膜与LDD(Lightly Doped Drain；轻掺杂漏极)区或源区(或漏区)重叠。栅极布线是指用于连接各晶体管的栅电极之间的布线、用于连接各像素所具有的栅电极之间的布线、或用于连接栅电极和其它布线的布线。
另外，由与栅电极相同的材料形成成并形成与栅电极相同的岛而连接的部分(区域、导电膜、布线等)也可以称为栅电极。与此同样，由与栅极布线相同的材料形成成并形成与栅极布线相同的岛而连接的部分(区域、导电膜、布线等)也可以称为栅极布线。严密地说，有时这种部分(区域、导电膜、布线等)与沟道区不重叠，或者，不具有与其它栅电极之间实现连接的功能。但是，因为制造时的条件等，具有由与栅电极或栅极布线相同的材料形成成并形成与栅电极或栅极布线相同的岛而连接的部分(区域、导电膜、布线等)。因此，这种部分(区域、导电膜、布线等)也可以称为栅电极或栅极布线。
薄膜晶体管的栅极连接栅极线，源极连接数据线，驱动单元12的输入端连接薄膜晶体管的漏极，输出端连接公共电极线。通过薄膜晶体管给驱动单元11 提供驱动信号，这样即可独立控制各像素区域显示的内容。
进一步的，所述彩膜基板7用于将背光光源发出的光线透过彩膜基板7后能够实现图像的彩色化，所述彩膜基板1包括RGB彩膜层(即红色彩膜、绿色彩膜和蓝色彩膜)(图未示出)。
较佳的，所述反射片10为具有高反射率的反射片，用于在一定的光源输出时提高显示面板100的正视亮度。所述反射片10为白反射片或银反射片，其表面涂覆有反射层，涂覆的反射层选用反射率在50％以上的反射材料，以提高反射效果。
进一步的，作为光源，可以使用冷阴极管或LED(发光二极管)。作为LED，可以使用白色LED，或者，也可以组合每个颜色的LED(例如白色、红色、蓝色、绿色、蓝绿色、紫红色、黄色等)。通过使用LED，由于光的波长峰值尖锐，所以可以提高颜色纯度。在采用侧光型的情况下，配置导光板，来实现均匀的面光源。
进一步的，所述导光板2采用光学级亚克力(Polymethylmethacrylate，PMMA)/聚碳酸酯(Polycarbonate，PC)为基材，其用于将线光源转变为面光源。
本发明还提供了一种使用上述显示面板的电子设备，所述电子设备可以是带有显示面板的时钟、带有显示面板的手表、个人计算机、液晶电视、取景型或者监控直视型录像机、导航装置、寻呼机、电子记事本、计算器、文字处理机、工作站、可视电话机、POS终端器等。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (16)

  1. 一种显示面板，包括增亮膜、导光板和背光光源，所述增亮膜与所述导光板层叠设置，所述背光光源设于所述导光板侧边，其中，所述显示面板还包括置于所述导光板底部的MEMS反射板，所述MEMS反射板包括控制基板和反射单元，所述控制基板用于控制所述反射单元的工作状态，所述反射单元包括设置在所述控制基板的驱动单元和与所述驱动单元转动连接的反射片，所述驱动单元用于驱动所述反射片旋转。
  2. 如权利要求1所述的显示面板，其中，所述反射片的转动方位角范围为0-360°。
  3. 如权利要求2所述的显示面板，其中，所述反射片与所述驱动单元之间设有球面副，所述球面副包括球面副壳体结构和球面副内部球头，所述球面副内部球头活动安装在所述球面副壳体结构的内表面。
  4. 如权利要求3所述的显示面板，其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
  5. 如权利要求2所述的显示面板，其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
  6. 如权利要求1所述的显示面板，其中，所述显示面板还包括公共电极线、多个像素区域，所述像素区域还包括薄膜晶体管，所述薄膜晶体管的漏极与所述驱动单元输入端连接，所述驱动单元输出端连接所述公共电极线。
  7. 如权利要求5所述的显示面板，其中，每个所述像素区域之内包含至少一个所述反射单元。
  8. 如权利要求1所述的显示面板，其中，所述背光光源是一白色LED光源或一RGB三原色LED光源。
  9. 一种电子设备，其中，包括显示面板，所述显示面板包括增亮膜、导光板和背光光源，所述增亮膜与所述导光板层叠设置，所述背光光源设于所述导光 板侧边，所述显示面板还包括置于所述导光板底部的MEMS反射板，所述MEMS反射板包括控制基板和反射单元，所述控制基板用于控制所述反射单元的工作状态，所述反射单元包括设置在所述控制基板的驱动单元和与所述驱动单元转动连接的反射片，所述驱动单元用于驱动所述反射片旋转。
  10. 如权利要求9所述的电子设备，其中，所述反射片的转动方位角范围为0-360°。
  11. 如权利要求10所述的电子设备，其中，所述反射片与所述驱动单元之间设有球面副，所述球面副包括球面副壳体结构和球面副内部球头，所述球面副内部球头活动安装在所述球面副壳体结构的内表面。
  12. 如权利要求11所述的电子设备，其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
  13. 如权利要求10所述的电子设备，其中，所述反射片为白反射片或银反射片，其表面涂覆有反射层。
  14. 如权利要求9所述的电子设备，其中，所述显示面板还包括公共电极线、多个像素区域，所述像素区域还包括薄膜晶体管，所述薄膜晶体管的漏极与所述驱动单元输入端连接，所述驱动单元输出端连接所述公共电极线。
  15. 如权利要求14所述的电子设备，其中，每个所述像素区域之内包含至少一个所述反射单元。
  16. 如权利要求9所述的电子设备，其中，所述背光光源是一白色LED光源或一RGB三原色LED光源。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3423887B1 (en) 2016-03-01 2023-07-12 Magic Leap, Inc. Reflective switching device for inputting different wavelengths of light into waveguides
CN106952621B (zh) * 2017-05-25 2019-10-01 京东方科技集团股份有限公司 一种显示装置及其驱动方法
CN107144916A (zh) * 2017-07-10 2017-09-08 京东方科技集团股份有限公司 一种背光模组及其控制方法、显示装置
CN109633977B (zh) * 2019-01-02 2022-07-29 京东方科技集团股份有限公司 背光模组及显示装置
CN110908183B (zh) * 2019-11-12 2021-07-23 惠州市华星光电技术有限公司 显示器
CN114842762B (zh) * 2022-05-11 2024-03-15 北京奕斯伟计算技术股份有限公司 显示面板及其显示装置
CN118011684B (zh) * 2024-02-22 2025-10-14 惠科股份有限公司 背光模组及显示装置
CN118131533B (zh) * 2024-03-14 2025-10-14 惠科股份有限公司 背光模组及显示装置
CN118131535B (zh) * 2024-03-29 2025-09-12 惠科股份有限公司 背光模组及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010002964A1 (en) * 1999-12-06 2001-06-07 Se-Kyong Song Spherical joint for coupling three or more links together at one point
JP2001311946A (ja) * 2000-02-22 2001-11-09 Matsushita Electric Ind Co Ltd 液晶表示装置
CN1690793A (zh) * 2004-04-28 2005-11-02 鸿富锦精密工业（深圳）有限公司 背光模组
CN101194204A (zh) * 2005-07-01 2008-06-04 松下电器产业株式会社 液晶显示装置
CN101424768A (zh) * 2007-11-02 2009-05-06 北京京东方光电科技有限公司 导光板、背光源及液晶显示器
CN101542325A (zh) * 2007-05-08 2009-09-23 东丽株式会社 白色反射膜

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010002964A1 (en) * 1999-12-06 2001-06-07 Se-Kyong Song Spherical joint for coupling three or more links together at one point
JP2001311946A (ja) * 2000-02-22 2001-11-09 Matsushita Electric Ind Co Ltd 液晶表示装置
CN1690793A (zh) * 2004-04-28 2005-11-02 鸿富锦精密工业（深圳）有限公司 背光模组
CN101194204A (zh) * 2005-07-01 2008-06-04 松下电器产业株式会社 液晶显示装置
CN101542325A (zh) * 2007-05-08 2009-09-23 东丽株式会社 白色反射膜
CN101424768A (zh) * 2007-11-02 2009-05-06 北京京东方光电科技有限公司 导光板、背光源及液晶显示器

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