WO2018205439A1 - 一种显示面板 - Google Patents

一种显示面板 Download PDF

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Publication number
WO2018205439A1
WO2018205439A1 PCT/CN2017/096783 CN2017096783W WO2018205439A1 WO 2018205439 A1 WO2018205439 A1 WO 2018205439A1 CN 2017096783 W CN2017096783 W CN 2017096783W WO 2018205439 A1 WO2018205439 A1 WO 2018205439A1
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WIPO (PCT)
Prior art keywords
display
sub
display unit
display panel
primary color
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Application number
PCT/CN2017/096783
Other languages
English (en)
French (fr)
Inventor
李国盛
Original Assignee
北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to KR1020187032094A priority Critical patent/KR102305475B1/ko
Priority to JP2017552425A priority patent/JP2019520592A/ja
Priority to RU2017142344A priority patent/RU2678654C1/ru
Publication of WO2018205439A1 publication Critical patent/WO2018205439A1/zh

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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/34—Control 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
    • G09G3/36—Control 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 using liquid crystals
    • G09G3/3607—Control 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 using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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    • 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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • G—PHYSICS
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    • 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
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    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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    • 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
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    • G02F1/1333—Constructional arrangements; Manufacturing methods
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    • 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
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/22—Control 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
    • G09G3/30—Control 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
    • G09G3/32—Control 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]
    • G09G3/3208—Control 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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control 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] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/34—Control 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
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/34—Control 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
    • G09G3/36—Control 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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52—RGB geometrical arrangements
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    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
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    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs

Definitions

  • the present disclosure relates to the field of display technology, and more particularly to a display panel.
  • the display panel is one of the most common input and output devices on an electronic device.
  • the display panel has the ability to display text information and image information, and the liquid crystal display panel is a common display panel.
  • the display unit of the liquid crystal display panel includes a plurality of pixels, and the display unit of each pixel can be further divided into sub-display units corresponding to the red, green and blue color channels, and each of the sub-display units can be driven by a driving circuit, a liquid crystal layer and a color filter. composition.
  • a backlight for providing light to each of the sub-display units, and a polarizing plate for changing the direction of the light may also be included in the liquid crystal display panel.
  • the color filters of the sub-display unit are all red, green and blue color filters, while the red, green and blue color filters are relatively poor in light transmission, so if a higher screen brightness is required, it needs to be substantially Increasing the backlight intensity, so the power consumed is large.
  • a display panel includes a display unit of a plurality of pixels, each display unit includes a sub-display unit corresponding to a white channel and a sub-display unit corresponding to a plurality of primary color channels, wherein The display areas of the sub-display units corresponding to the plurality of primary color channels are equal, and the display area of the sub-display units corresponding to the white channels is larger than the display area of the sub-display units corresponding to each of the primary color channels.
  • the plurality of primary color channels include a red channel, a blue channel, and a green channel.
  • pixels of different colors can be formed based on three primary color channels of red, green, and blue.
  • the display areas of the sub-display units corresponding to the plurality of primary color channels and the sub-display units corresponding to the white channels are rectangular display areas of equal length and arranged in parallel.
  • the rectangular display areas of the sub-display units in each display unit are arranged side by side in a vertical arrangement in the same arrangement order.
  • the rectangular display areas of the sub-display units in each display unit are arranged side by side in a horizontal arrangement manner in the same arrangement order.
  • the display area of the sub-display unit corresponding to the white channel is less than half of the display area of the display unit.
  • the white channel has an excessive influence on the accuracy of the pixel color.
  • a display area of the sub-display unit corresponding to the white channel accounts for 1/3 of a display area of the display unit.
  • each of the sub display units comprises a TFT.
  • the display panel comprises a gate circuit and a data circuit, a gate of each of the TFTs is connected to the gate circuit, and a source is connected to the data circuit.
  • the conduction of the TFTs in the sub-display unit corresponding to the white channel and each of the primary color channels can be controlled by a unified gate.
  • the display panel includes a first gate circuit, a second gate circuit, and a data circuit, and a source of each of the TFT switches is connected to the data circuit, and each of the primary color channels corresponds to a sub display unit.
  • a gate of the TFT switch is connected to the first gate circuit, and a gate of the TFT switch of the sub-display unit corresponding to each of the white channels is connected to the second gate circuit.
  • the conduction of the TFTs in the sub-display units corresponding to the white channel and the respective color channel can be controlled by the first gate circuit and the second gate circuit, respectively.
  • the display panel includes a plurality of pixel display units, each of the display units includes a sub-display unit corresponding to the white channel and a sub-display unit corresponding to the plurality of primary color channels, wherein the plurality of primary color channel corresponding sub-display units
  • the display area of the sub-display unit corresponding to the white channel is larger than the display area of the sub-display unit corresponding to each of the primary color channels.
  • a sub-display unit corresponding to a white channel having a large display area is added to each pixel, and a color filter of the sub-display unit corresponding to the white channel has a strong light transmission capability, so when the screen brightness requirement is the same, the present embodiment is used.
  • the display panel provided by the solution can use a backlight with a lower light intensity, thereby saving the power consumed by the backlight.
  • FIG. 1 is a schematic structural diagram of a display panel according to an exemplary embodiment
  • FIG. 2 is a schematic diagram showing an arrangement of display areas of respective color channels according to an exemplary embodiment
  • FIG. 3 is a schematic diagram showing an arrangement of display areas of respective color channels according to an exemplary embodiment
  • FIG. 4 is a schematic structural diagram of a sub display unit according to an exemplary embodiment
  • FIG. 5 is a schematic structural diagram of a display unit according to an exemplary embodiment
  • FIG. 6 is a schematic structural diagram of a display unit according to an exemplary embodiment
  • Display unit 11 Sub-display unit corresponding to white channel
  • Gate circuit 21 First gate
  • the embodiment of the present disclosure provides a display panel.
  • the display panel includes a plurality of pixels of the display unit 1 , and each of the display units includes a sub-display unit 11 of a white channel and a sub-display unit 12 of a plurality of primary color channels.
  • the display area of the sub display unit 12 of the plurality of primary color channels is equal, and the display area of the sub display unit 1 of the white channel is larger than the display area of the sub display unit 12 of each of the primary color channels.
  • the display panel may be a liquid crystal display panel or an OLED display panel.
  • the display unit 1 of each pixel may include a driving circuit (which may be specifically divided into a gate circuit and a data circuit), and a liquid crystal layer.
  • the color filter when it is an OLED display panel, the display unit of each pixel may include a light emitting diode and a color filter.
  • a liquid crystal display panel is taken as an example, and the OLED display panel is similar. This embodiment is not described in detail.
  • the display unit 1 has a plurality of pixels in the display panel.
  • each display unit 1 is configured to display corresponding pixel points on the screen.
  • the display panel can display 1000*1000 pixels.
  • the display panel can contain 1000*1000 display units 1.
  • Each pixel in the display panel can be composed of a white channel and a plurality of primary color channels, that is, a white sub-pixel and a plurality of primary color sub-pixels, and the corresponding display unit of each color channel can control the color of the corresponding sub-pixel, such that When a plurality of sub-pixels are combined, pixels of different colors can be presented.
  • the display area of the sub-display unit 12 corresponding to the plurality of primary color channels in each pixel is equal, and the display area of the sub-display unit 11 corresponding to the white channel is larger than the display area of the sub-display unit 12 corresponding to each of the primary color channels. Since the transmittance of the white channel is much larger than that of the other primary color channels, the display panel including the white channel and the plurality of primary color channels can effectively increase the brightness of the screen at the same backlight power, and change the angle. If the screen is required to reach a certain brightness, using the display panel disclosed in the embodiment, the brightness requirement of the backlight is relatively low, so that the power consumed by the backlight can be saved.
  • the display area (also referred to as a white display area) of the sub-display unit 11 corresponding to the white channel in the present embodiment is larger than the display area of the sub-display unit 12 corresponding to each of the primary color channels (also referred to as a primary color display area). Therefore, under the same backlight intensity, the display panel disclosed in the present scheme can provide higher screen brightness. Similarly, if the screen needs to reach a certain brightness, the intensity of the backlight can be relatively low.
  • the plurality of primary color channels include a red channel, a blue channel, and a green channel.
  • each pixel may be composed of three primary color sub-pixels and white sub-pixels, and the three primary color sub-pixels correspond to three primary color channels.
  • the primary color channels may be red channels, green channels, and blue channels, respectively. That is, the color filters in the sub-display unit 12 corresponding to the primary color channel are a red filter, a green filter, and a blue filter, respectively.
  • the display area of the sub-display unit 12 corresponding to the plurality of primary color channels and the sub-display unit 11 corresponding to the white channel is a rectangular display area of equal length and arranged in parallel.
  • the display areas of the sub-display units 12 corresponding to the plurality of primary color channels and the sub-display units 11 corresponding to the white channels may all be rectangular display areas, and the lengths of the rectangular display areas are equal, and the display areas are juxtaposed. Cloth. It is not difficult to understand that since the display area of the sub-display unit 12 corresponding to the plurality of primary color channels is equal, the display area 11 of the sub-display unit corresponding to the white channel has a large area, and at the same time, the lengths of the sub-display units are equal, so that white is known.
  • the width of the rectangular display area corresponding to the channel is greater than the width of the rectangular display area corresponding to the primary color channel.
  • the present embodiment provides two feasible display area arrangement modes:
  • Manner 1 The rectangular display areas of the sub-display units in each display unit 1 are arranged side by side in the same arrangement order in a long vertical manner.
  • the rectangular display areas of the sub-display units in each display unit 1 are arranged side by side in the same arrangement order and in a horizontally long manner.
  • the rectangular display areas of each sub-display unit in each display unit 1 are arranged in the same color arrangement order, and the long sides are arranged in a horizontal state, as shown in FIG. 3, here are three colors of red, green and blue.
  • the base color is arranged in a row and a plurality of rows in each display unit 1 in the order of red, green, blue, and white.
  • the display area of the sub-display unit 11 corresponding to the white channel is smaller than half of the display area of the display unit 1.
  • the white channel affects the accuracy of the color display, that is, if the display area size of the white channel not only affects the brightness of the screen under the same backlight intensity, but also affects the display color of the pixels in the screen, Specifically, the larger the display area of the sub-display unit 11 corresponding to the white channel, the brighter the screen, and the less accurate the display color of the pixel, so the display area of the sub-display unit 11 corresponding to the white channel in the display panel cannot be too large.
  • the display area of the sub-display unit 11 corresponding to the white channel accounts for 1/3 of the display area of the display unit 1.
  • the display area of the sub-display unit 11 corresponding to the white channel being larger than the display area of the sub-display unit 12 corresponding to each of the primary color channels, and being less than half of the display area of the display unit 1 of each pixel,
  • the display area of the sub display unit 11 corresponding to the white channel is selected to occupy 1/3 of the display area of each display unit 1. In this way, it is possible to provide the brightness of the screen under the same backlight intensity, and to ensure that the display color of each pixel does not deviate too much from the original color.
  • each sub display unit includes a TFT 13.
  • each of the sub-display units may include a transistor switch for driving liquid crystal molecules in the liquid crystal layer, and the transistor switch may be a TFT (Thin Film Transistor).
  • TFT Thin Film Transistor
  • circuit connection manner of the TFT 13 of each sub-display unit may be various, and two feasible connection manners are given as follows:
  • the display panel includes a gate circuit 2 and a data circuit 3.
  • the gate of each TFT 13 is connected to the gate circuit 2, and the source is connected to the data circuit 3.
  • the display panel when the display panel is a liquid crystal display panel, the display panel may include a gate circuit and a data circuit, wherein the gates of the TFTs 13 of each sub-display unit may be connected to the gate circuit, and the source is connected to the data circuit.
  • the TFT 13 of each sub-display unit can be controlled by a unified gate circuit.
  • the gate circuit When the gate circuit is turned on, the gate of the TFT 13 can have a high voltage. At this time, the source and the drain of the TFT 13 are turned on.
  • the data voltage is a voltage obtained by converting the data circuit from the image data
  • the rotation of the liquid crystal molecules in the liquid crystal layer can be controlled to change the intensity of light passing through the liquid crystal layer.
  • the display panel provided in this embodiment can support the display mode 1 in which the sub-display unit 11 corresponding to the white channel is operated independently, and can also support the display mode 2 in which the sub-display unit 12 corresponding to the plurality of primary color channels operates (ie, In this mode, the sub-display unit 11 corresponding to the white channel does not work, and the display mode 3 in which the sub-display unit 11 corresponding to the white channel and the sub-display unit 12 corresponding to the plurality of primary color channels work together can be supported.
  • the data circuit output of the sub-display unit 12 corresponding to the plurality of primary color channels can be controlled to be zero, that is, the display mode 1 can be realized, or the data circuit output of the sub-display unit 11 corresponding to the white channel can be controlled to be zero. , that is, display mode 2 can be realized.
  • the display panel includes a first gate circuit 21, a second gate circuit 22, and a data circuit 3.
  • the source of each TFT switch is connected to the data circuit 3, and the gate of the TFT switch of the sub-display unit 12 corresponding to each of the primary color channels
  • the pole is connected to the first gate circuit 21, and the gate of the TFT switch of the sub-display unit 11 corresponding to each white channel is connected to the second gate circuit 22.
  • the display panel when the display panel is a liquid crystal display panel, the display panel may include a first gate circuit 21, a second gate circuit 22, and a data circuit 3, wherein a source of each TFT switch is connected to the data circuit 3, and each The gates of the TFT switches of the sub-display units 12 corresponding to the primary color channels are connected to the first gate circuit 21, and the gates of the TFT switches of the sub-display units 11 corresponding to each white channel are connected to the second gate circuit 22.
  • the TFTs of the sub-display units 11 corresponding to the respective primary color channels can be controlled by the first gate circuit 21, and the TFTs of the sub-display units 11 corresponding to the white channels can be controlled by the second gate circuit 22.
  • the display panel provided in this embodiment can support the display mode 1 in which the sub-display unit 11 corresponding to the white channel is operated independently, and can also support the display mode 2 in which the sub-display unit 12 corresponding to the plurality of primary color channels operates (ie, In this mode, the sub-display unit 11 corresponding to the white channel does not work, and the display mode 3 in which the sub-display unit 11 corresponding to the white channel and the sub-display unit 12 corresponding to the plurality of primary color channels work together can be supported.
  • only the second gate circuit 22 can be turned on, and only the TFT of the sub-display unit 11 corresponding to the white channel is turned on; when the display mode 2 needs to be implemented, only the first gate circuit 21 can be turned on.
  • the TFTs of the sub-display units 12 corresponding to the respective primary color channels are turned on, and the TFTs of the sub-display units 11 corresponding to the white channels are not turned on; when the display mode 3 needs to be implemented, the first gate circuit 21 and the second gate circuit 22 may be common.
  • the TFTs of all the sub-display units are turned on.
  • the display panel includes a plurality of pixel display units, each of the display units includes a sub-display unit corresponding to the white channel and a sub-display unit corresponding to the plurality of primary color channels, wherein the plurality of primary color channel corresponding sub-display units of The display areas are equal, and the display area of the sub-display unit corresponding to the white channel is larger than the display area of the sub-display unit corresponding to each of the primary color channels.
  • a sub-display unit corresponding to a white channel having a large display area is added to each pixel, and a color filter of the sub-display unit corresponding to the white channel has a strong light transmission capability, so when the screen brightness requirement is the same, the present embodiment is used.
  • the display panel provided by the solution can use a backlight with a lower light intensity, thereby saving the power consumed by the backlight.

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Abstract

一种显示面板，属于显示技术领域，包括多个像素的显示单元（1），每个显示单元（1）包括白色通道对应的子显示单元（11）和多个基色通道对应的子显示单元（12），其中，多个基色通道对应的子显示单元（12）的显示面积相等，白色通道对应的子显示单元（11）的显示面积大于每个基色通道对应的子显示单元（11）的显示面积。该显示面板可以降低背光消耗的功率。

Description

一种显示面板 技术领域
本公开涉及显示技术领域，特别是关于一种显示面板。
背景技术
显示面板是电子设备上最常见的输入输出设备之一，显示面板具有显示文字信息和图像信息的能力，液晶显示面板是一种常见的显示面板。
液晶显示面板中包括多个像素的显示单元，每个像素的显示单元又可以分为红绿蓝三色通道对应的子显示单元，每个子显示单元可以由驱动电路、液晶层、彩色滤光片组成。液晶显示面板中还可以包括用于为每个子显示单元提供光线的背光源，和用于改变光线方向的偏光板。
在实现本公开的过程中，发明人发现现有技术至少存在以下问题：
子显示单元的彩色滤光片均为红绿蓝三色滤光片，而红绿蓝三色滤光片的透光能力均比较差，这样，如果需要较高的屏幕亮度时，则需要大幅提高背光光强，故而消耗的功率较大。
发明内容
为了解决现有技术的问题，本公开实施例提供了一种显示面板。所述技术方案如下：
根据本公开实施例提供了一种显示面板，所述显示面板包括多个像素的显示单元，每个显示单元包括白色通道对应的子显示单元和多个基色通道对应的子显示单元，其中，所述多个基色通道对应的子显示单元的显示面积相等，所述白色通道对应的子显示单元的显示面积大于每个基色通道对应的子显示单元的显示面积。
可选的，所述多个基色通道包括红色通道、蓝色通道和绿色通道。
这样，可以基于红色、绿色、蓝色三种基色通道形成不同颜色的像素。
可选的，所述多个基色通道对应的子显示单元和白色通道对应的子显示单元的显示区域为并列排布的、长度相等的长方形显示区域。
可选的，所述每个显示单元中各子显示单元的长方形显示区域按照相同的排列顺序，采用长边竖直的方式并列排布。
可选的，所述每个显示单元中各子显示单元的长方形显示区域按照相同的排列顺序，采用长边水平的方式并列排布。
可选的，所述白色通道对应的子显示单元的显示面积小于所述显示单元的显示面积的一半。
这样，可以避免白色通道对像素颜色的准确度影响过大。
可选的，所述白色通道对应的子显示单元的显示面积占所述显示单元的显示面积的1/3。
可选的，所述每个子显示单元均包括一个TFT。
可选的，所述显示面板包括门电路和数据电路，每个所述TFT的栅极与所述门电路相连，源极与所述数据电路相连。
这样，可以由统一的门电路控制白色通道和各基色通道对应的子显示单元中的TFT的导通与否。
可选的，所述显示面板包括第一门电路、第二门电路和数据电路，每个所述TFT开关的源极与所述数据电路相连，每个所述基色通道对应的子显示单元的TFT开关的栅极与所述第一门电路相连，每个所述白色通道对应的子显示单元的TFT开关的栅极与所述第二门电路相连。
这样，可以由第一门电路和第二门电路分别控制白色通道和各基色通道对应的子显示单元中的TFT的导通与否。
本公开实施例提供的技术方案带来的有益效果是：
本公开实施例中，显示面板包括多个像素的显示单元，每个显示单元包括白色通道对应的子显示单元和多个基色通道对应的子显示单元，其中，多个基色通道对应的子显示单元的显示面积相等，白色通道对应的子显示单元的显示面积大于每个基色通道对应的子显示单元的显示面积。这样，在每个像素中添加了显示面积较大的白色通道对应的子显示单元，白色通道对应的子显示单元的彩色滤光片的透光能力强，故而在屏幕亮度需求相同时，采用本方案提供的显示面板，可以采用较低光强的背光，从而可以节省背光所消耗的功率。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。在附图中：
图1是根据一示例性实施例示出的一种显示面板的结构示意图；
图2是根据一示例性实施例示出的一种各颜色通道显示区域的排列示意图；
图3是根据一示例性实施例示出的一种各颜色通道显示区域的排列示意图；
图4是根据一示例性实施例示出的一种子显示单元的结构示意图；
图5是根据一示例性实施例示出的一种显示单元的结构示意图；
图6是根据一示例性实施例示出的一种显示单元的结构示意图；
通过上述附图，已示出本公开明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本公开构思的范围，而是通过参考特定实施例为本领域技术人员说明本公开的概念。
图例说明：
1.显示单元                   11.白色通道对应的子显示单元
12.基色通道对应的子显示单元  13.TFT
2.门电路                     21.第一门电路
22.第二门电路                3.数据电路
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
本公开实施例提供了一种显示面板，如图1所示，显示面板包括多个像素的显示单元1，每个显示单元包括白色通道的子显示单元11和多个基色通道的子显示单元12，其中，多个基色通道的子显示单元12的显示面积相等，白色通道的子显示单元1的显示面积大于每个基色通道的子显示单元12的显示面积。
其中，显示面板可以是液晶显示面板，也可以是OLED显示面板，当其为液晶显示面板时，每个像素的显示单元1可以包括驱动电路(可具体分为门电路和数据电路)、液晶层和彩色滤光片，当其为OLED显示面板时，每个像素的显示单元可以包括发光二极管和彩色滤光片，本实施例中以液晶显示面板为例进行说明，OLED显示面板与之类似，本实施例不再累述。
在实施中，显示面板中存在多个像素的显示单元1，在显示图像时，每个显示单元1用于在屏幕上显示相应的像素点，例如，显示面板可以显示包含1000*1000个像素的图像，则相应的，显示面板中可以包含1000*1000个显示单元1。而显示面板中的每个像素可以由白色通道和多个基色通道组成，即由白色子像素和多个基色子像素组成，每个颜色通道对应的显示单元可以控制相应的子像素的颜色，这样，多个子像素组合在一起，则可以呈现出不同的颜色的像素点。
进一步的，每个像素中多个基色通道对应的子显示单元12的显示面积相等，而白色通道对应的子显示单元11的显示面积要大于每个基色通道对应的子显示单元12的显示面积。由于白色通道的透光率远远大于其他基色通道的透光率，这样，在相同背光的功率下，采用包含白色通道和多个基色通道的显示面板可以有效提高屏幕的亮度，而换一个角度，如果需要屏幕达到某个亮度，使用本实施例所公开的显示面板，背光的亮度需求相对较低，故而可以节省背光消耗的功率。另外，由于本方案中白色通道对应的子显示单元11的显示面积(也可称为白色显示面积)，大于每个基色通道对应的子显示单元12的显示面积(也可称为基色显示面积)，故而，在相同的背光强度下，本方案公开的显示面板可以提供更高的屏幕亮度，同样，如果屏幕需要达到某个亮度，则背光的强度可以相对低一些。
可选的，多个基色通道包括红色通道、蓝色通道和绿色通道。
在实施中，每个像素可以由三个基色子像素和白色子像素，三个基色子像素对应三个基色通道，具体的，基色通道可以分别为红色通道、绿色通道和蓝色通道，这样，即基色通道对应的子显示单元12中的彩色滤光片分别为红色滤光片、绿色滤光片和蓝色滤光片。
可选的，多个基色通道对应的子显示单元12和白色通道对应的子显示单元11的显示区域为并列排布的、长度相等的长方形显示区域。
在实施中，多个基色通道对应的子显示单元12和白色通道对应的子显示单元11的显示区域可以均为长方形显示区域，而这些长方形显示区域的长度相等，并且显示区域为并列排 布的。不难理解，由于多个基色通道对应的子显示单元12的显示区域面积相等，白色通道对应的子显示单元的显示区域11面积较大，同时，子显示单元的长度均相等，故而可知，白色通道对应的长方形显示区域的宽度大于基色通道对应的长方形显示区域的宽度。
可选的，基于上述子显示单元的显示区域均为长方形显示区域的情况，本实施例给出了两种可行的显示区域排列方式：
方式一：每个显示单元1中各子显示单元的长方形显示区域按照相同的排列顺序，采用长边竖直的方式并列排布。
在实施中，每个显示单元1中各个子显示单元的长方形显示区域均按照相同的颜色排列顺序，以长边处于竖直的状态并列排布，如图2所示，此处以红绿蓝三个基色为例，每个显示单元1中均按照红色(对应R区域)、绿色(对应G区域)、蓝色(对应B区域)、白色(对应W区域)的排列顺序，以一行多列的形式进行排列。
方式二，每个显示单元1中各子显示单元的长方形显示区域按照相同的排列顺序，采用长边水平的方式并列排布。
在实施中，每个显示单元1中各个子显示单元的长方形显示区域均按照相同的颜色排列顺序，以长边处于水平的状态并列排布，如图3所示，此处以红绿蓝三个基色为例，每个显示单元1中均按照红色、绿色、蓝色、白色的排列顺序，以一列多行的形式进行排列。
可选的，白色通道对应的子显示单元11的显示面积小于显示单元1的显示面积的一半。
在实施中，由于白色通道会影响颜色显示的准确性，即如果白色通道的显示面积大小不仅会影响在相同背光强度下，屏幕的亮暗，还会对屏幕中的像素的显示颜色造成影响，具体的，白色通道对应的子显示单元11的显示面积越大，则屏幕越亮，而像素的显示颜色越不准确，故而，显示面板中白色通道对应的子显示单元11的显示面积不能过大，应处于小于每个像素的显示单元1的显示面积(也可称为像素显示面积)的一半，也就是说，1/4的像素显示面积<白色显示面积<1/2的像素显示面积，这样，既可以提供相同背光强度下屏幕的亮度，又可以保证每个像素的显示颜色与原始颜色的偏差不会太大。
可选的，白色通道对应的子显示单元11的显示面积占显示单元1的显示面积的1/3。
在实施中，基于上述白色通道对应的子显示单元11的显示面积大于每个基色通道对应的子显示单元12的显示面积，同时小于每个像素的显示单元1的显示面积的一半的考虑，可以选取白色通道对应的子显示单元11的显示面积占据每个显示单元1的显示面积的1/3。这样，既可以提供相同背光强度下屏幕的亮度，又可以保证每个像素的显示颜色与原始颜色的偏差不会太大。
可选的，如图4所示，每个子显示单元均包括一个TFT13。
在实施中，当显示面板为液晶显示面板时，每个子显示单元可以均包括一个用于驱动液晶层中液晶分子的晶体管开关，该晶体管开关可以是TFT(薄膜场效应晶体管，Thin Film Transistor)，当TFT13的栅极处存在高电压时，TFT13的源极和漏极之间导通，这样，数据电路则可以将由数字信号转换过来的电压施加在液晶层，从而可以控制液晶层中的液晶分子旋转，以改变穿过液晶层的光线的强度。
可选的，每个子显示单元的TFT13的电路连接方式可以有多种，如下给出了两个可行的连接方式：
方式一，如图5所示，显示面板包括门电路2和数据电路3，每个TFT13的栅极与门电路2相连，源极与数据电路3相连。
在实施中，当显示面板为液晶显示面板时，该显示面板可以包括门电路和数据电路，其中，每个子显示单元的TFT13的栅极可以均与门电路连接，源极与数据电路相连。这样，可以通过统一的门电路来控制各个子显示单元的TFT13工作与否，当门电路导通时，TFT13的栅极可以存在高电压，这时，TFT13的源极和漏极导通，进而，原本施加在TFT13源极的数据电压(该数据电压为数据电路由图像数据转换得到的电压)，可以通过导通的TFT13的源极和漏极直接施加在每个子显示单元液晶层上，从而可以控制液晶层中的液晶分子旋转，以改变穿过液晶层的光线的强度。
需要说明的是，本实施例提供的显示面板可以支持白色通道对应的子显示单元11单独工作的显示模式一，也可以支持仅多个基色通道对应的子显示单元12工作的显示模式二(即该模式下白色通道对应的子显示单元11不工作)，还可以支持白色通道对应的子显示单元11和多个基色通道对应的子显示单元12共同工作的显示模式三。门电路导通后，可以控制多个基色通道对应的子显示单元12的数据电路输出为零，即可以实现显示模式一，或者，可以控制白色通道对应的子显示单元11的数据电路输出为零，即可以实现显示模式二。
方式二，显示面板包括第一门电路21、第二门电路22和数据电路3，每个TFT开关的源极与数据电路3相连，每个基色通道对应的子显示单元12的TFT开关的栅极与第一门电路21相连，每个白色通道对应的子显示单元11的TFT开关的栅极与第二门电路22相连。
在实施中，当显示面板为液晶显示面板时，该显示面板可以包括第一门电路21、第二门电路22和数据电路3，其中，每个TFT开关的源极与数据电路3相连，每个基色通道对应的子显示单元12的TFT开关的栅极与第一门电路21相连，每个白色通道对应的子显示单元11的TFT开关的栅极与第二门电路22相连。这样，可以通过第一门电路21来控制各个基色通道对应的子显示单元11的TFT，通过第二门电路22来控制白色通道对应的子显示单元11的TFT。
需要说明的是，本实施例提供的显示面板可以支持白色通道对应的子显示单元11单独工作的显示模式一，也可以支持仅多个基色通道对应的子显示单元12工作的显示模式二(即该模式下白色通道对应的子显示单元11不工作)，还可以支持白色通道对应的子显示单元11和多个基色通道对应的子显示单元12共同工作的显示模式三。当需要实现显示模式一时，可以仅开启第二门电路22，则仅有白色通道对应的子显示单元11的TFT导通；当需要实现显示模式二时，可以仅开启第一门电路21，则各个基色通道对应的子显示单元12的TFT导通，白色通道对应的子显示单元11的TFT不导通；当需要实现显示模式三时，可以将第一门电路21和第二门电路22共同开启，则所有的子显示单元的TFT均导通。
本公开实施例中，显示面板包括多个像素的显示单元，每个显示单元包括白色通道对应的子显示单元和多个基色通道对应的子显示单元，其中，多个基色通道对应的子显示单元的 显示面积相等，白色通道对应的子显示单元的显示面积大于每个基色通道对应的子显示单元的显示面积。这样，在每个像素中添加了显示面积较大的白色通道对应的子显示单元，白色通道对应的子显示单元的彩色滤光片的透光能力强，故而在屏幕亮度需求相同时，采用本方案提供的显示面板，可以采用较低光强的背光，从而可以节省背光所消耗的功率。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (10)

  1. 一种显示面板，其特征在于，所述显示面板包括多个像素的显示单元，每个显示单元包括白色通道对应的子显示单元和多个基色通道对应的子显示单元，其中，所述多个基色通道对应的子显示单元的显示面积相等，所述白色通道对应的子显示单元的显示面积大于每个基色通道对应的子显示单元的显示面积。
  2. 根据权利要求1所述的显示面板，其特征在于，所述多个基色通道包括红色通道、蓝色通道和绿色通道。
  3. 根据权利要求1所述的显示面板，其特征在于，所述多个基色通道对应的子显示单元和白色通道对应的子显示单元的显示区域为并列排布的、长度相等的长方形显示区域。
  4. 根据权利要求3所述的显示面板，其特征在于，所述每个显示单元中各子显示单元的长方形显示区域按照相同的排列顺序，采用长边竖直的方式并列排布。
  5. 根据权利要求3所述的显示面板，其特征在于，所述每个显示单元中各子显示单元的长方形显示区域按照相同的排列顺序，采用长边水平的方式并列排布。
  6. 根据权利要求1所述的显示面板，其特征在于，所述白色通道对应的子显示单元的显示面积小于所述显示单元的显示面积的一半。
  7. 根据权利要求1所述的显示面板，其特征在于，所述白色通道对应的子显示单元的显示面积占所述显示单元的显示面积的1/3。
  8. 根据权利要求1所述的显示面板，其特征在于，所述每个子显示单元均包括一个TFT。
  9. 根据权利要求8所述的显示面板，其特征在于，所述显示面板包括门电路和数据电路，每个所述TFT的栅极与所述门电路相连，源极与所述数据电路相连。
  10. 根据权利要求8所述的显示面板，其特征在于，所述显示面板包括第一门电路、第二门电路和数据电路，每个所述TFT开关的源极与所述数据电路相连，每个所述基色通道对应的子显示单元的TFT开关的栅极与所述第一门电路相连，每个所述白色通道对应的子显示单元的TFT开关的栅极与所述第二门电路相连。
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