WO2017118106A1 - 显示基板及其驱动方法和显示装置 - Google Patents

显示基板及其驱动方法和显示装置 Download PDF

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Publication number
WO2017118106A1
WO2017118106A1 PCT/CN2016/099917 CN2016099917W WO2017118106A1 WO 2017118106 A1 WO2017118106 A1 WO 2017118106A1 CN 2016099917 W CN2016099917 W CN 2016099917W WO 2017118106 A1 WO2017118106 A1 WO 2017118106A1
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Prior art keywords
pixel
data signal
sub
signal group
display substrate
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PCT/CN2016/099917
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English (en)
French (fr)
Inventor
侯清娜
杨炜帆
冯兰
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京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Priority to US15/508,817 priority Critical patent/US10209601B2/en
Publication of WO2017118106A1 publication Critical patent/WO2017118106A1/zh

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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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • 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 
    • G02F1/15—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 an electrochromic effect
    • 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
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G09G3/3433—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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • 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
    • G09G3/38—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 electrochromic devices
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • G02F2001/1635—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor the pixel comprises active switching elements, e.g. TFT
    • 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
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • 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
    • G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0404—Matrix technologies
    • G09G2300/0408—Integration of the drivers onto the display substrate
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours

Definitions

  • Embodiments of the present invention relate to a display substrate and a method of driving the same, and a display device.
  • the liquid crystal display device generally includes a liquid crystal display panel and a backlight module composed of an array substrate, an opposite substrate, and a liquid crystal layer interposed between the array substrate and the opposite substrate.
  • the array substrate or the opposite substrate may be provided with a color filter layer. Color filtering is performed on the light emitted by the backlight module to realize color display.
  • RGB (red, green, and blue) structure pixels include red, green, and blue sub-pixels.
  • an additional white sub-pixel is usually set in each pixel to form a pixel of RGBW (red, green, blue and white) structure, that is, RGBW (red, green, blue and white).
  • the pixels of the structure include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.
  • Embodiments of the present invention provide a display substrate and a display device to solve the problem that white sub-pixels in RGBW (red, green, blue and white) structure pixels cause undesirable interference to the color displayed by the pixel.
  • RGBW red, green, blue and white
  • At least one embodiment of the present invention provides a display substrate including: a plurality of pixels, each of which includes a white sub-pixel; a data signal chip for transmitting a data signal group to the pixel, the data signal group including the a data signal transmitted by the white sub-pixel; and a control unit that controls the white sub-pixel to be in a dark state when the data signal chip transmits the preset data signal group to the pixel.
  • each pixel further includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
  • the data signal group further includes data signals respectively transmitted to the red sub-pixel, the green sub-pixel, and the blue sub-pixel.
  • the pixel receives the preset number According to the signal group, the red sub-pixel, the green sub-pixel and the blue sub-pixel emit mixed color light, and the white sub-pixel emits white light, which causes the human eye to view the brightness of the mixed color light compared to the mixed color light
  • the actual brightness is lower than the preset percentage.
  • the preset percentage includes 5%.
  • the control unit includes: an electrochromic unit disposed corresponding to the white sub-pixel; and a control chip that acquires the data signal chip to be transmitted to the pixel And the data signal group, if the data signal group is the preset data signal group, controlling the electrochromic unit to be in an opaque state.
  • the electrochromic unit has the same shape and equal size as the white sub-pixel.
  • the control unit controls the electrochromic layer to maintain the opaque state for a predetermined period of time
  • the detected data signal chip is transmitted to the pixel.
  • the data signal group is not the preset data signal group, and the electrochromic layer is controlled to be in a transparent state.
  • the electrochromic unit includes: a first electrode layer; an ion storage layer disposed on the first electrode layer; and an electrolyte layer disposed on the ion Above the storage layer; an electrochromic layer disposed over the electrolyte layer; and a second electrode layer disposed over the electrochromic layer.
  • the control unit sends the data signal group transmitted by the data signal chip to the pixel to the first data signal group to the first a positive current is passed through the electrode layer and the second electrode layer to make the electrochromic layer opaque, after the electrochromic layer is controlled to maintain the opacity for a predetermined period of time, if the detected The data signal group transmitted by the data signal chip to the pixel is not the predetermined data signal group, and a reverse current is applied to the first electrode layer and the second electrode layer, so that the electrochromic layer is Transparent state.
  • the white sub-pixel includes a pixel electrode and a common electrode
  • the ion storage layer is disposed on the pixel electrode
  • the electrolyte layer is disposed on the ion storage layer.
  • the electrochromic layer is disposed over the electrolyte layer
  • the common electrode is disposed over the electrolyte layer.
  • the pixel electrode is multiplexed into a first power In the pole layer
  • the common electrode is multiplexed into the second electrode layer.
  • the control unit includes: a switch unit disposed on a data line between the data signal chip and the white sub-pixel; and a control chip that detects the And the data signal group transmitted by the data signal chip to the pixel, if the data signal group is the preset data signal group, controlling the switch unit to be disconnected.
  • the control unit detects the data signal group transmitted by the data signal chip to the pixel after controlling the switch unit to be off for a preset duration. Not the preset data signal group, the switch unit is controlled to be closed.
  • the switching unit includes: a thin film transistor including a gate, a source, and a drain, wherein the gate is connected to the control chip, the source And the drain is connected to the white sub-pixel and the data signal chip, respectively.
  • control chip is integrated in the data signal chip.
  • the red sub-pixel, the green sub-pixel, and the blue sub-pixel when the pixel receives a preset data signal group, the red sub-pixel, the green sub-pixel, and the blue sub-pixel emit mixed color light including light green light and yellow. Light or light blue light.
  • At least one embodiment of the present invention provides a display device comprising the display substrate of any of the above.
  • At least one embodiment of the present invention provides a driving method of a display substrate, the display substrate including a plurality of pixels, each pixel including a white sub-pixel and a data signal chip for transmitting a data signal group and a control unit to the pixel,
  • the driving method includes: when the data signal chip transmits a preset data signal group to the pixel, the control unit controls the white sub-pixel to be in a dark state.
  • the pixel when the pixel receives the preset data signal group, the pixel emits mixed color light, and the white sub-pixel emits white light, and the white light makes the human eye view.
  • the brightness to the mixed color light is lower than the actual brightness of the mixed color light by a predetermined percentage.
  • the preset percentage includes 5%.
  • the white sub-pixel when the data signal chip transmits the preset data signal group to the pixel, by controlling the white sub-pixel to be in a dark state, the white sub-pixel can be prevented from emitting mixed color light to the red sub-pixel, the green sub-pixel, and the blue sub-pixel. Visual impact to ensure the user's viewing effect.
  • FIG. 1 is a schematic structural view of a display substrate according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a display substrate according to still another embodiment of the present invention.
  • FIG. 3 is a schematic structural view of an electrochromic unit according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing a display substrate in accordance with one embodiment of the present invention.
  • FIG. 5 is a block diagram showing the structure of a display substrate according to still another embodiment of the present invention.
  • FIG. 6 is a block diagram showing the structure of a display substrate according to still another embodiment of the present invention.
  • the inventor of the present application found in the research that in the liquid crystal display device, since the white sub-pixels in the RGBW (red, green, blue and white) structure pixels do not filter the light emitted by the backlight module, the light of the corresponding position can be ensured. Fully transparent, and thus improve the brightness, in the case of the same illumination power of the backlight module, the RGBW (red, green, blue and white) structure pixels can make the light incident into the user's eyes compared to the usual RGB (red, green, blue) structure pixels. More. Therefore, a liquid crystal display device using RGBW (red, green, blue and white) structured pixels can reduce power for display while achieving a liquid crystal display device using a normal RGB structure pixel, thereby reducing power consumption of the liquid crystal display.
  • RGBW red, green, blue and white
  • the RGBW (red, green, blue and white) structure pixels also have some problems of poor display.
  • the pure white light color coordinates are (0.33, 0.33), when the pixel displays light color light, that is, The color coordinate of the color light is less than a certain distance (for example, 0.02) from (0.33, 0.33). Since the brightness of the light emitted by the white sub-pixel is greater than the brightness of the color light, the brightness of the color light perceived by the user when viewing the picture is actually larger than the actual pixel. The brightness of the emitted color light is low, and the change in brightness causes the color coordinate corresponding to the color perceived by the human eye to be different from the color coordinate corresponding to the color light emitted by the pixel.
  • the perceived color coordinate of the color light moves away from (0.33, 0.33) but still belongs to the near chromaticity. That is to say, the white light emitted by the white sub-pixel has a great influence on some mixed color light emitted by the RBG sub-pixel, so that the brightness of the mixed color light perceived by the human eye is relative to the actual brightness of the mixed color light emitted by the pixel. low.
  • Embodiments of the present invention provide a display substrate and a display device.
  • the display substrate includes a plurality of pixels, each pixel includes a white sub-pixel; a data signal chip for transmitting a data signal group to the pixel, the data signal group including a data signal transmitted to the white sub-pixel; and a control unit
  • the control unit controls the white sub-pixel to be in a dark state when the data signal chip transmits a preset data signal group to the pixel.
  • the display substrate can make the white sub-pixels dark state by the control unit when the white sub-pixel affects the pixel display (for example, visually reducing the brightness of the pixel display from a human) to eliminate the adverse effect of the white sub-pixel.
  • the embodiment provides a display substrate.
  • the display substrate includes a plurality of pixels 1 , a data signal chip 2 , and a control unit 3 .
  • Each pixel 1 (only one pixel is shown in FIG. 1, but the display substrate may actually include a plurality of pixels) includes a white sub-pixel 14; the data signal chip 2 is used to transmit a data signal group to the pixel 1, the data signal group includes The data signal transmitted to the white sub-pixel 14; the control unit 3 controls the white sub-pixel 14 to be in a dark state when the data signal chip 2 transmits the preset data signal group to the pixel 1.
  • the control unit 3 can control the white sub-pixel 14 to be in a dark state, as shown in FIG. 2, thereby avoiding white sub-pixels. 14 emitting white light causes a visual effect on the mixed color light of the pixel 1, so as to ensure the user's viewing effect and improve the display quality of the product.
  • the preset data signal group may be different according to the actual situation, when the white sub-pixel makes the color coordinate corresponding to the color perceived by the human eye and the color coordinate corresponding to the color light emitted by the pixel including the white sub-pixel. The signal group is set.
  • the display substrate includes a plurality of pixels 1, each pixel 1 (only one pixel is shown in FIG. 1, but the display substrate may actually include a plurality of pixels) including a red sub-pixel 11, The green sub-pixel 12, the blue sub-pixel 13, and the white sub-pixel 14.
  • the display substrate further includes: a data signal chip 2 and a control unit 3 for transmitting data signals to the red sub-pixel 11, the green sub-pixel 12, the blue sub-pixel 13 and the white sub-pixel 14 respectively;
  • a preset data signal group (a combination of data signals received by the preset red sub-pixel 11, green sub-pixel 12, blue sub-pixel 13 and white sub-pixel 14 respectively) is received, the red sub-pixel 11 and the green sub-pixel
  • the pixel 12 and the blue sub-pixel 13 emit mixed color light (for example, light green light, yellow light, light blue light, etc.), and the white sub-pixel emits white light, and the white light causes the human eye to see that the brightness of the mixed color light is lower than the actual brightness of the mixed color light.
  • the percentage (for example, the preset percentage is greater than 5%) is set.
  • the control unit 3 controls the white sub-pixel 14 to be in a dark state when the data signal chip 2 transmits (detects or acquires) the preset data signal group to the pixel 1.
  • the white light emitted by the white sub-pixel has a visual effect on the mixed color light emitted by the red sub-pixel, the green sub-pixel, and the blue sub-pixel when the pixel receives the preset data signal group, for example, mixing
  • the color light is yellow light with a brightness of 200 nit
  • the brightness of the yellow light perceived by the user is 180 nit due to the white light emitted by the white sub-pixel, so that the color of the yellow light perceived by the human eye is 10% lower than the brightness of the actual yellow light emitted by the pixel. Therefore, the data signal chip 2 transmits a preset to the pixel 1.
  • the white sub-pixel 14 can be controlled to be in a dark state, as shown in FIG. 2, so as to prevent the white sub-pixel 14 from emitting white light, which causes the red sub-pixel 11, the green sub-pixel 12, and the blue sub-pixel 13 to emit mixed color light. Influence to ensure the user's viewing effect and improve the display quality of the product.
  • RGBW red, green, blue and white
  • the embodiments of the present invention include but are not limited thereto, and the pixel may also adopt other structures including white sub-pixels.
  • the control unit includes: an electrochromic unit 4 corresponding to the white sub-pixel (for example, disposed below or above the white sub-pixel) And controlling the chip to obtain a signal transmitted by the data signal chip to the pixel, and if the transmitted signal is a preset data signal group, controlling the electrochromic unit to be opaque.
  • the present embodiment can utilize the electrification color change characteristic of the electrochromic unit to change the light transmittance of the electrochromic unit, for example, when the electrochromic unit is controlled to be opaque, the white sub-pixel can be in a dark state. .
  • the electrochromic cells can be the same shape and equal in size to the white sub-pixels.
  • embodiments of the present invention include, but are not limited to, the electrochromic unit may also be slightly larger than the white sub-pixel.
  • the shape of the electrochromic unit may be different from that of the white sub-pixel, as long as the electrochromic unit can change the gradation of the white sub-pixel by the color change so that the white sub-pixel is in a dark state, which is not limited herein.
  • the opaque state referred to in the embodiment means that no light passes, and the dark state includes both passing light and no light passing.
  • the electrochromic layer is controlled to be in a transparent state.
  • the electrochromic layer is controlled to be in a transparent state, so that the white sub-pixel functions normally.
  • the electrochromic unit 4 includes: a first electrode layer 41; an ion storage layer 42 disposed on the first electrode layer 41; and an electrolyte layer 43 is disposed on the ion storage layer 42; the electrochromic layer 44 is disposed on the electrolyte layer 43; And a second electrode layer 45 disposed over the electrochromic layer 44.
  • the electrochromic layer can be made of an inorganic electrochromic material or an organic electrochromic material.
  • the inorganic electrochromic material includes tungsten trioxide (WO 3 ).
  • organic electrochromic materials include polythiophenes and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds, and the like.
  • the electrochromic layer may be disposed under the white sub-pixel.
  • the electrochromic layer may adopt the structure in this embodiment, and may also adopt a structure opposite to the present embodiment. That is, the second electrode layer, the electrochromic layer, the electrolyte layer, the ion storage layer, and the first electrode layer are sequentially included from the bottom to the top, and the embodiment of the present invention is not limited herein.
  • the control unit applies a forward current to the first electrode layer and the second electrode layer to make the electrochromic layer opaque.
  • the reverse current is applied to the first electrode layer and the second electrode layer. In order to make the electrochromic layer transparent.
  • control unit passes a forward current to the first electrode layer and the second electrode layer (that is, the current direction is an anode to a cathode), so that ions in the ion storage layer can enter the electrochromic layer through the ion conductive layer.
  • the layer causes the electrochromic material to change color, thereby changing the transmittance of the electrochromic unit to make it transparent.
  • the control unit applies a reverse current to the first electrode layer and the second electrode layer (ie, the current direction is cathode to anode), so that ions in the electrochromic layer can enter the ion storage layer through the ion conductive layer, so that the electrolysis
  • the color changing unit recovers the opaque state, and then stops supplying power to the two electrodes to maintain the opaque state of the electrochromic material.
  • the white sub-pixel further includes: a substrate substrate 100, a pixel electrode 8 and a common electrode 9 disposed on the substrate substrate 100, and an ion storage layer. 42 is disposed above the pixel electrode 8, an electrolyte layer 43 is disposed over the ion storage layer 42, an electrochromic layer 44 is disposed over the electrolyte layer 43, and a common electrode 9 is disposed over the electrolyte layer 43.
  • the pixel electrode is multiplexed into the first electrode layer, that is, the pixel electrode can simultaneously serve as the first electrode layer
  • the common electrode is multiplexed into the second electrode layer, that is, the common electrode can simultaneously serve as the second electrode layer.
  • the pixel electrode and the common electrode are both disposed in the display substrate, and are suitable for ADS.
  • the IPS structure, in which the pixel electrode and the common electrode can be respectively used as the first electrode layer and the second electrode layer of the electrochromic unit, so that the first electrode layer and the second electrode layer need not be additionally formed, which simplifies the manufacturing process.
  • the control unit 3 includes: a switching unit 31 (only the case where the switching unit is a transistor is shown in FIG. 4, in fact, the switching unit 31 may also have a diode as a switching unit) is disposed on the data signal chip 2
  • the data line 5 between the white sub-pixel 14 and the white sub-pixel 14 can be disposed, for example, on the side of the data line 5 near the common electrode line 6, or on the side of the data line 5 near the data signal chip 2; the control chip 32 detects the data signal.
  • the signal transmitted from the chip 2 to the pixel 1 is turned off if the transmitted signal is a preset data signal group.
  • the white sub-pixel brightness and dark state is controlled by the switch unit, and the switch unit has a simple structure and is easy to set.
  • the control switch unit When the control switch unit is turned off, the white sub-pixel cannot receive the data signal and therefore remains in the dark state.
  • control switch unit After the control unit is turned off by the control switch unit for a predetermined period of time, if it is detected that the signal transmitted by the data signal chip to the pixel is not the preset data signal group, the control switch unit is closed.
  • the white sub-pixel when the white light emitted by the white sub-pixel does not cause a visual effect on the mixed color light emitted by the red sub-pixel, the green sub-pixel, and the blue sub-pixel, the white sub-pixel is controlled to normally emit light, so that the white sub-pixel functions normally.
  • the switching unit includes a thin film transistor having a gate connected to a control unit (control chip), and a source and a drain connected to the white sub-pixel and the data signal chip, respectively.
  • the thin film transistor has a simple structure and is easy to set, and can form the thin film transistor together when forming a driving transistor in a pixel, thereby simplifying the manufacturing process.
  • the control chip 32 is integrated in the data signal chip 2. Since the data signal chip 2 is generally disposed in the peripheral circuit, integrating the control chip 32 in the data signal chip 2 can reduce the occupation of the effective light-emitting area of the display substrate, thereby increasing the aperture ratio.
  • the red sub-pixel, the green sub-pixel, and the blue sub-pixel emit mixed color light including light green light, yellow light, or light blue light.
  • the mixed color light is yellow light
  • the white light emitted by the white sub-pixel has the greatest influence on the viewing effect of the user, and the above technical solution can greatly improve the visual effect of the user.
  • the embodiment provides a display device including the above display substrate.
  • the display device in this embodiment may be any product or component having a display function, such as an electronic paper, a mobile phone, a tablet computer, a television, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment provides a driving method of a display substrate.
  • the display substrate includes a plurality of pixels, each of which includes a white sub-pixel and a data signal chip for transmitting a data signal group and a control unit to the pixel.
  • the driving method includes: When the signal chip transmits the preset data signal group to the pixel, the control unit controls the white sub-pixel to be in a dark state. Therefore, the white sub-pixel emits white light to cause a visual effect on the mixed color light of the pixel, so as to ensure the user's viewing effect and improve the display quality of the product.
  • the preset data signal group may be different according to the actual situation, when the white sub-pixel makes the color coordinate corresponding to the color perceived by the human eye and the color coordinate corresponding to the color light emitted by the pixel including the white sub-pixel.
  • the signal group is set.
  • the pixel when the pixel receives the preset data signal group, the pixel emits mixed color light, and the white sub-pixel emits white light, and the white light causes the human eye to observe the brightness of the mixed color light than the actual color of the mixed color light.
  • the brightness is lower than the preset percentage.
  • each pixel further includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel
  • the data signal group further includes data signals respectively transmitted to the red sub-pixel, the green sub-pixel, and the blue sub-pixel.
  • the preset percentage includes 5%.
  • white light emitted by a white sub-pixel causes visual effects on certain types of mixed color light emitted by red sub-pixels, green sub-pixels, and blue sub-pixels. image.
  • the white sub-pixel when the chip transmits a preset data signal group to the pixel, by controlling the white sub-pixel to be in a dark state, the white sub-pixel can be prevented from emitting mixed color light to the red sub-pixel, the green sub-pixel, and the blue sub-pixel. Visual impact to ensure the user's viewing effect.

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Abstract

一种显示基板及其驱动方法以及显示装置。该显示基板包括多个像素（1）、数据信号芯片（2）以及控制单元（3）。各像素（1）包括白色子像素（14）；数据信号芯片（2）用于向像素（1）传输数据信号组，数据信号组包括向白色子像素（14）传输的数据信号；控制单元（3）在数据信号芯片（2）向像素（1）传输预设数据信号组时，控制白色子像素（14）呈暗态。该显示基板在数据信号芯片（2）向像素（1）传输预设数据信号组时，通过控制白色子像素（14）呈暗态，可以避免白色子像素（14）对像素（1）发出混合色光的视觉影响，以保证用户的观看效果。

Description

显示基板及其驱动方法和显示装置 技术领域
本发明的实施例涉及一种显示基板及其驱动方法以及一种显示装置。
背景技术
随着显示技术的不断发展，液晶显示器(Liquid Crystal Display,LCD)因其响应速度快、集成度高、功耗小等优点，已成为主流的显示装置。液晶显示装置通常包括由阵列基板、对置基板以及夹设在阵列基板和对置基板之间的液晶层组成的液晶显示面板和背光模组，阵列基板或对置基板可设置彩色滤光层以对背光模组发出的光进行滤色，从而实现彩色显示。
在显示领域中，通常的RGB(红绿蓝)结构像素包括红色子像素、绿色子像素和蓝色子像素。为了提高RGB(红绿蓝)结构像素的亮度并降低功率，通常在每个像素中额外设置一个白色子像素，从而形成RGBW(红绿蓝白)结构的像素，即RGBW(红绿蓝白)结构的像素包括红色子像素、绿色子像素、蓝色子像素和白色子像素。
发明内容
本发明实施例提供一种显示基板和显示装置，以解决RGBW(红绿蓝白)结构像素中白色子像素对该像素显示的颜色造成不良干扰的问题。
本发明至少一实施例提供一种显示基板，其包括：多个像素，每个像素包括白色子像素；数据信号芯片，用于向所述像素传输数据信号组，所述数据信号组包括向所述白色子像素传输的数据信号；以及控制单元，所述控制单元在所述数据信号芯片向所述像素传输预设数据信号组时，控制所述白色子像素呈暗态。
例如，在本发明一实施例提供的显示基板中，每个像素还包括红色子像素、绿色子像素和蓝色子像素。所述数据信号组还包括分别向所述红色子像素、绿色子像素和蓝色子像素传输的数据信号。
例如，在本发明一实施例提供的显示基板中，所述像素接收到所述预设数 据信号组时，所述红色子像素、绿色子像素和蓝色子像素发出混合色光，所述白色子像素发出白光，所述白光使人眼观看到所述混合色光的亮度比所述混合色光的实际亮度低预设百分比。
例如，在本发明一实施例提供的显示基板中，所述预设百分比包括5％。
例如，在本发明一实施例提供的显示基板中，所述控制单元包括：电致变色单元，与所述白色子像素对应设置；以及控制芯片，获取所述数据信号芯片向所述像素传输的所述数据信号组，若所述数据信号组为所述预设数据信号组，控制所述电致变色单元呈不透光状态。
例如，在本发明一实施例提供的显示基板中，所述电致变色单元与所述白色子像素形状相同、大小相等。
例如，在本发明一实施例提供的显示基板中，所述控制单元在控制所述电致变色层维持不透光状态预设时长后，若检测到的所述数据信号芯片向所述像素传输的所述数据信号组不是所述预设数据信号组，控制所述电致变色层呈透明状态。
例如，在本发明一实施例提供的显示基板中，所述电致变色单元包括：第一电极层；离子存储层，设置在所述第一电极层之上；电解质层，设置在所述离子存储层之上；电致变色层，设置在所述电解质层之上；以及第二电极层，设置在所述电致变色层之上。
例如，在本发明一实施例提供的显示基板中，所述控制单元在所述数据信号芯片向所述像素传输的所述数据信号组为所述预设数据信号组时，向所述第一电极层和第二电极层中通以正向电流，以使所述电致变色层呈不透光状态，在控制所述电致变色层维持不透光预设时长后，若检测到的所述数据信号芯片向所述像素传输的所述数据信号组不是所述预设数据信号组，向第一电极层和第二电极层中通以反向电流，以使所述电致变色层呈透明状态。
例如，本发明一实施例提供的显示基板中，所述白色子像素包括像素电极和公共电极，所述离子存储层设置在所述像素电极之上，所述电解质层设置在所述离子存储层之上，所述电致变色层设置在所述电解质层之上，所述公共电极设置在所述电解质层之上。
例如，在本发明一实施例提供的显示基板中，所述像素电极复用为第一电 极层，所述公共电极复用为所述第二电极层。
例如，在本发明一实施例提供的显示基板中，所述控制单元包括：开关单元，设置在所述数据信号芯片与所述白色子像素之间的数据线上；以及控制芯片，检测所述数据信号芯片向所述像素传输的所述数据信号组，若所述数据信号组为所述预设数据信号组，控制所述开关单元断开。
例如，在本发明一实施例提供的显示基板中，所述控制单元在控制所述开关单元断开预设时长后，若检测到所述数据信号芯片向所述像素传输的所述数据信号组不是所述预设数据信号组，控制所述开关单元闭合。
例如，在本发明一实施例提供的显示基板中，所述开关单元包括：薄膜晶体管，包括栅极、源极和漏极，其中，所述栅极与所述控制芯片相连，所述源极和所述漏极分别与所述白色子像素和所述数据信号芯片相连。
例如，在本发明一实施例提供的显示基板中，所述控制芯片集成在所述数据信号芯片中。
例如，在本发明一实施例提供的显示基板中，在所述像素接收到预设数据信号组时，所述红色子像素、绿色子像素和蓝色子像素发出混合色光包括淡绿色光、黄光或淡蓝色光。
本发明至少一实施例提供一种显示装置，包括上述任一项所述的显示基板。
本发明至少一实施例提供一种显示基板的驱动方法，所述显示基板包括多个像素，每个像素包括白色子像素、数据信号芯片，用于向所述像素传输数据信号组以及控制单元，所述驱动方法包括：在所述数据信号芯片向所述像素传输预设数据信号组时，所述控制单元控制所述白色子像素呈暗态。
例如，在本发明一实施例提供的驱动方法中，所述像素接收到所述预设数据信号组时，所述像素发出混合色光，所述白色子像素发出白光，所述白光使人眼观看到所述混合色光的亮度比所述混合色光的实际亮度低预设百分比。
例如，在本发明一实施例提供的驱动方法中，所述预设百分比包括5％。
根据上述技术方案，在数据信号芯片向像素传输预设数据信号组时，通过控制白色子像素呈暗态，可以避免白色子像素对红色子像素、绿色子像素和蓝色子像素发出混合色光的视觉影响，以保证用户的观看效果。
附图说明
为了更清楚地说明本发明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要介绍，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，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1示出了根据本发明一个实施例的显示基板的结构示意图；
图2示出了根据本发明又一个实施例的显示基板的结构示意图；
图3示出了根据本发明一个实施例的电致变色单元的结构示意图；
图4示出了根据本发明一个实施例的显示基板的剖视示意图；
图5示出了根据本发明又一个实施例的显示基板的结构示意图；以及
图6示出了根据本发明又一个实施例的显示基板的结构示意图。
附图标号说明：
1-像素；11-红色子像素；12-绿色子像素；13-蓝色子像素；14-白色子像素；2-数据信号芯片；3-控制单元；31-开关单元；32-控制芯片；41-第一电极层；42-离子存储层；43-电解质层；44-电致变色层；45-第二电极层；5-数据线；6-公共电极线；8-像素电极；9-公共电极；100-衬底基板。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。另外，附图中各膜层的厚度和形状不反映真实比例，目的只是示意说明本发明内容。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的”第一”、”第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。”包括”或者”包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物 件。”连接”或者”相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。
本申请的发明人在研究中发现：在液晶显示装置中，由于RGBW(红绿蓝白)结构像素中的白色子像素不对背光模组发出的光进行滤色，可以保证其对应位置的光能够完全透过，进而提高亮度，在背光模组发光功率相同的情况下，相较于通常的RGB(红绿蓝)结构像素，RGBW(红绿蓝白)结构像素能够使得射入用户眼中的光更多。因此，采用RGBW(红绿蓝白)结构像素的液晶显示装置可在够达到采用通常RGB结构像素的液晶显示装置的前提下可以降低功率以进行显示，从而降低了该液晶显示器的功耗。然而，RGBW(红绿蓝白)结构像素也存在部分显示不良的问题，例如在色坐标系中，纯正的白光色坐标是(0.33，0.33)，在像素显示浅颜色的光时，也即该色光的色坐标与(0.33，0.33)相距小于一定距离(例如0.02)，由于白色子像素射出的光亮度大于该色光的亮度，使得用户在观看画面时，感觉到的该色光的亮度比像素实际发出的该色光的亮度低，亮度的变化会使得人眼感觉到的色彩对应的色坐标，与像素发出该色光对应的色坐标不同。在色坐标系中的体现是，感觉亮度变低后，感觉到的该色光的色坐标向远离(0.33，0.33)但仍属于同近色度的方向移动。也就是说，白色子像素发出的白光，对于RBG子像素发出的某些混合色光会存在较大的影响，使得人眼感觉到的该混合色光的亮度相对于像素发出的混合色光的实际亮度要低。
本发明实施例提供一种显示基板以及显示装置。该显示基板包括多个像素，各像素包括白色子像素；数据信号芯片，用于向所述像素传输数据信号组，所述数据信号组包括向所述白色子像素传输的数据信号；以及控制单元，所述控制单元在所述数据信号芯片向所述像素传输预设数据信号组时，控制所述白色子像素呈暗态。由此，该显示基板通过控制单元可在白色子像素影响像素显示(例如从人的视觉上降低该像素显示的亮度)时，使白色子像素呈暗态以消除白色子像素的不良影响。
下面结合附图对本发明实施例提供的显示基板以及显示装置进行说明。
实施例一
本实施例提供一种显示基板，如图1所示，该显示基板包括多个像素1、数据信号芯片2以及控制单元3。各像素1(图1中仅示出了一个像素，但该显示基板实际上可以包含多个像素)包括白色子像素14；数据信号芯片2用于向像素1传输数据信号组，数据信号组包括向白色子像素14传输的数据信号；控制单元3在数据信号芯片2向像素1传输预设数据信号组时，控制白色子像素14呈暗态。
在本实施例提供的显示基板中，当数据信号芯片2向像素1传输预设数据信号组时，控制单元3可以控制白色子像素14呈暗态，如图2所示，从而避免白色子像素14发出白光对像素1发出混合色光造成视觉影响，以保证用户的观看效果，提高产品的显示质量。需要说明的是，上述的预设数据信号组可根据实际情况中白色子像素使人眼感觉到的色彩对应的色坐标与包括该白色子像素的像素发出该色光对应的色坐标不同时的数据信号组进行设置。
例如，如图1所示，该显示基板包括多个像素1，每个像素1(图1中仅示出了一个像素，但该显示基板实际上可以包含多个像素)包括红色子像素11、绿色子像素12、蓝色子像素13和白色子像素14。该显示基板还包括：数据信号芯片2和控制单元3，数据信号芯片2用于向红色子像素11、绿色子像素12、蓝色子像素13和白色子像素14分别传输数据信号；在像素1接收到预设数据信号组(预先设定的红色子像素11、绿色子像素12、蓝色子像素13和白色子像素14分别接收到的数据信号的组合)时，红色子像素11、绿色子像素12和蓝色子像素13发出混合色光(例如淡绿色光、黄光、淡蓝色光等)，白色子像素发出白光，白光使人眼观看到混合色光的亮度比混合色光的实际亮度低预设百分比(例如预设百分比大于5％)，此时，控制单元3在(检测到或获取到)数据信号芯片2向像素1传输预设数据信号组时，控制白色子像素14呈暗态。
在本实施例提供的显示基板中，由于在像素接收到预设数据信号组时，白色子像素发出的白光对红色子像素、绿色子像素和蓝色子像素发出混合色光存在视觉影响，例如混合色光为亮度为200nit的黄光时，由于白色子像素发出白光的影响，用户感觉到的黄光的亮度为180nit，导致人眼感觉到的黄光的颜色比像素实际发出黄光的亮度低10％。因此在数据信号芯片2向像素1传输预设 数据信号组时，可以控制白色子像素14呈暗态，如图2所示，从而避免白色子像素14发出白光对红色子像素11、绿色子像素12和蓝色子像素13发出混合色光造成视觉影响，以保证用户的观看效果，提高产品的显示质量。需要说明的是，本实施例以RGBW(红绿蓝白)结构像素为例对本发明进行了说明。当然，本发明实施例包括但不限于此，像素还可采用其他包括白色子像素的结构。
例如，在本实施例一示例提供的显示基板中，如图2所示，所述控制单元包括：电致变色单元4，与白色子像素对应设置(例如设置在白色子像素的下方或上方)；以及控制芯片，获取数据信号芯片向像素传输的信号，若传输的信号为预设数据信号组，控制电致变色单元呈不透光状态。
由此，本实施例可以利用电致变色单元的通电变色特性，以改变电致变色单元的透光率，例如在控制电致变色单元呈不透光状态时，可以保证白色子像素呈暗态。
例如，电致变色单元可与白色子像素形状相同、大小相等。当然，本发明实施例包括但不限于此，电致变色单元还可略大于白色子像素。
例如，电致变色单元的形状可以与白色子像素不同，只要电致变色单元可通过变色改变白色子像素的灰度使得白色子像素呈暗态即可，本发明实施例在此不作限制。
需要说明的是，实施例中所指的不透光状态是指没有光通过，而暗态既包括通过的光很少，也包括没有光通过。
例如，控制单元在控制电致变色层维持不透光状态预设时长后，若检测到的数据信号向像素传输的信号不是预设数据信号组，控制电致变色层呈透明状态。由此，可以使得当白色子像素发出的白光不对红色子像素、绿色子像素和蓝色子像素发出混合色光造成视觉影响时，控制电致变色层呈透明状态，使得白色子像素正常发挥功能。
例如，在本实施例一示例提供的显示基板中，如图3所示，电致变色单元4包括：第一电极层41；离子存储层42，设置在第一电极层41之上；电解质层43，设置在离子存储层42之上；电致变色层44，设置在电解质层43之上； 以及第二电极层45，设置在电致变色层44之上。
例如，电致变色层可采用无机电致变色材料或有机电致变色材料制作。
例如，无机电致变色材料包括是三氧化钨(WO3)。
例如，有机电致变色材料包括聚噻吩类及其衍生物、紫罗精类、四硫富瓦烯、金属酞菁类化合物等。
在本实施例提供的显示基板中，电致变色层可以设置在白色子像素之下，另外，电致变色层除了可以采用本实施例中的结构，还可以采用与本实施相反的结构，也即由下至上依次包括第二电极层、电致变色层、电解质层、离子存储层和第一电极层，本发明实施例在此不作限制。
例如，控制单元在数据信号芯片向像素传输的信号为预设数据信号组时，向第一电极层和第二电极层中通以正向电流，以使电致变色层呈不透光状态，在控制电致变色层维持不透光预设时长后，若检测到的数据信号向像素传输的信号不是预设数据信号组，向第一电极层和第二电极层中通以反向电流，以使电致变色层呈透明状态。
需要说明的是，控制单元向第一电极层和第二电极层中通以正向电流(也即电流方向为阳极至阴极)，可以使得离子储存层中的离子通过离子导电层进入电致变色层，使得电致变色材料变色，从而改变电致变色单元的透过率，以使其呈透明状态。控制单元向第一电极层和第二电极层中通以反向电流(也即电流方向为阴极至阳极)，可以使得电致变色层中的离子通过离子导电层进入离子存储层，使得电致变色单元恢复不透光状态，进而停止向两电极供电即可维持电致变色材料呈不透光状态。
例如，在本实施例一示例提供的显示基板中，如图4所示，白色子像素还包括：衬底基板100，设置在衬底基板100上的像素电极8和公共电极9，离子存储层42设置在像素电极8之上，电解质层43设置在离子存储层42之上，电致变色层44设置在电解质层43之上，公共电极9设置在电解质层43之上。
例如，像素电极复用为第一电极层，即，像素电极同时可作为第一电极层，公共电极复用为第二电极层，即，公共电极同时可作为第二电极层。
在本实施例中，像素电极和公共电极都设置在显示基板中，适用于ADS 和IPS结构，进而可以将像素电极和公共电极分别作为电致变色单元的第一电极层和第二电极层，从而无需额外形成第一电极层和第二电极层，简化了制作工艺。
例如，如图5所示，控制单元3包括：开关单元31(图4中仅示出了开关单元为晶体管的情况，实际上开关单元31也可以以二极管作为开关单元)设置在数据信号芯片2与白色子像素14之间的数据线5上，例如可以设置在数据线5靠近公共电极线6一侧，也可以设置在数据线5靠近数据信号芯片2一侧；控制芯片32，检测数据信号芯片2向像素1传输的信号，若传输的信号为预设数据信号组，控制开关单元31断开。
本实施例通过开关单元控制白色子像素明暗状态，开关单元结构简单，易于设置。在控制开关单元断开时，白色子像素无法接收到数据信号，因此会维持在暗态。
例如，控制单元在控制开关单元断开预设时长后，若检测到数据信号芯片向像素传输的信号不是预设数据信号组，控制开关单元闭合。
通过本实施例，可以使得白色子像素发出的白光不对红色子像素、绿色子像素和蓝色子像素发出混合色光造成视觉影响时，控制白色子像素正常发光，使得白色子像素正常发挥功能。
例如，开关单元包括薄膜晶体管，该薄膜晶体管的栅极与控制单元(控制芯片)相连，源极和漏极分别与白色子像素和数据信号芯片相连。薄膜晶体管的结构简单，易于设置，可以在形成像素中的驱动晶体管时一同形成该薄膜晶体管，从而简化制作工艺。
例如，如图6所示，控制芯片32集成在数据信号芯片2中。由于数据信号芯片2一般设置在外围电路中，将控制芯片32集成在数据信号芯片2中，可以减少对显示基板有效发光区域的占用，从而提高开口率。
例如，在像素接收到预设数据信号组时，红色子像素、绿色子像素和蓝色子像素发出混合色光包括淡绿色光、黄光或淡蓝色光。例如，在混合色光为黄光时，白色子像素发出的白光对用户的观看效果影响最大，通过上述技术方案，可以对用户的视觉效果起到极大的改善。
实施例二
本实施例提供一种显示装置，包括上述显示基板。
需要说明的是，本实施例中的显示装置可以为：电子纸、手机、平板电脑、电视机、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。
实施例三
本实施例提供一种显示基板的驱动方法，显示基板包括多个像素，每个像素包括白色子像素、数据信号芯片，用于向像素传输数据信号组以及控制单元，该驱动方法包括：在数据信号芯片向像素传输预设数据信号组时，控制单元控制白色子像素呈暗态。由此可避免白色子像素发出白光对像素发出混合色光造成视觉影响，以保证用户的观看效果，提高产品的显示质量。需要说明的是，上述的预设数据信号组可根据实际情况中白色子像素使人眼感觉到的色彩对应的色坐标与包括该白色子像素的像素发出该色光对应的色坐标不同时的数据信号组进行设置。
例如，在本实施例一示例提供的驱动方法中，像素接收到预设数据信号组时，像素发出混合色光，白色子像素发出白光，白光使人眼观看到混合色光的亮度比混合色光的实际亮度低预设百分比。
例如，每个像素还包括红色子像素、绿色子像素和蓝色子像素，数据信号组还包括分别向红色子像素、绿色子像素和蓝色子像素传输的数据信号。当像素接收到预设数据信号组时，红色子像素、绿色子像素和蓝色子像素发出混合色光，白色子像素发出白光，白光使人眼观看到混合色光的亮度比混合色光的实际亮度低预设百分比。
例如，在本实施例一示例提供的驱动方法中，预设百分比包括5％。
以上结合附图详细说明了本发明的技术方案，考虑到现有技术中，白色子像素发出的白光会对红色子像素、绿色子像素和蓝色子像素发出的某些类型的混合色光造成视觉影像。通过本发明的技术方案，在芯片向像素传输预设数据信号组时，通过控制白色子像素呈暗态，可以避免白色子像素对红色子像素、绿色子像素和蓝色子像素发出混合色光的视觉影响，以保证用户的观看效果。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于 此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。
本申请要求于2016年01月08日递交的中国专利申请第201610009564.0号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (20)

  1. 一种显示基板，包括：
    多个像素，其中，每个像素包括白色子像素；
    数据信号芯片，用于向所述像素传输数据信号组，所述数据信号组包括向所述白色子像素传输的数据信号；以及
    控制单元，其中，所述控制单元在所述数据信号芯片向所述像素传输预设数据信号组时，控制所述白色子像素呈暗态。
  2. 根据权利要求1所述的显示基板，其中，每个像素还包括红色子像素、绿色子像素和蓝色子像素，所述数据信号组还包括分别向所述红色子像素、绿色子像素和蓝色子像素传输的数据信号。
  3. 根据权利要求2所述的显示基板，其中，所述像素接收到所述预设数据信号组时，所述红色子像素、绿色子像素和蓝色子像素发出混合色光，所述白色子像素发出白光，所述白光使人眼观看到所述混合色光的亮度比所述混合色光的实际亮度低预设百分比。
  4. 根据权利要求3所述的显示基板，其中，所述预设百分比包括5％。
  5. 根据权利要求1-4中任一项所述的显示基板，其中，所述控制单元包括：
    电致变色单元，与所述白色子像素对应设置；以及
    控制芯片，获取所述数据信号芯片向所述像素传输的所述数据信号组，若所述数据信号组为所述预设数据信号组，控制所述电致变色单元呈不透光状态。
  6. 根据权利要求5所述的显示基板，其中，所述电致变色单元与所述白色子像素形状相同、大小相等。
  7. 根据权利要求5所述的显示基板，其中，所述控制单元在控制所述电致变色层维持不透光状态预设时长后，若检测到的所述数据信号芯片向所述像素传输的所述数据信号组不是所述预设数据信号组，控制所述电致变色层呈透明状态。
  8. 根据权利要求5-7中任一项所述的显示基板，其中，所述电致变色单元包括：
    第一电极层；
    离子存储层，设置在所述第一电极层之上；
    电解质层，设置在所述离子存储层之上；
    电致变色层，设置在所述电解质层之上；以及
    第二电极层，设置在所述电致变色层之上。
  9. 根据权利要求8所述的显示基板，其中，所述控制单元在所述数据信号芯片向所述像素传输的所述数据信号组为所述预设数据信号组时，向所述第一电极层和第二电极层中通以正向电流，以使所述电致变色层呈不透光状态，在控制所述电致变色层维持不透光预设时长后，若检测到的所述数据信号芯片向所述像素传输的所述数据信号组不是所述预设数据信号组，向第一电极层和第二电极层中通以反向电流，以使所述电致变色层呈透明状态。
  10. 根据权利要求8或9所述的显示基板，其中，所述白色子像素包括：
    像素电极和公共电极，
    其中，所述离子存储层设置在所述像素电极之上，所述电解质层设置在所述离子存储层之上，所述电致变色层设置在所述电解质层之上，所述公共电极设置在所述电解质层之上。
  11. 根据权利要求10所述的显示基板，其中，所述像素电极复用为第一电极层，所述公共电极复用为所述第二电极层。
  12. 根据权利要求1-4中任一项所述的显示基板，其中，所述控制单元包括：
    开关单元，设置在所述数据信号芯片与所述白色子像素之间的数据线上；以及
    控制芯片，检测所述数据信号芯片向所述像素传输的所述数据信号组，若所述数据信号组为所述预设数据信号组，控制所述开关单元断开。
  13. 根据权利要求12所述的显示基板，其中，所述控制单元在控制所述开关单元断开预设时长后，若检测到所述数据信号芯片向所述像素传输的所述数据信号组不是所述预设数据信号组，控制所述开关单元闭合。
  14. 根据权利要求12或13所述的显示基板，其中，所述开关单元包括：
    薄膜晶体管，包括栅极、源极和漏极，
    其中，所述栅极与所述控制芯片相连，所述源极和所述漏极分别与所述白色子像素和所述数据信号芯片相连。
  15. 根据权利要求5-14中任一项所述的显示基板，其中，所述控制芯片集成在所述数据信号芯片中。
  16. 根据权利要求1-15中任一项所述的显示基板，其中，在所述像素接收到预设数据信号组时，所述红色子像素、绿色子像素和蓝色子像素发出混合色光包括淡绿色光、黄光或淡蓝色光。
  17. 一种显示装置，包括权利要求1至16中任一项所述的显示基板。
  18. 一种显示基板的驱动方法，其中，所述显示基板包括多个像素，每个像素包括白色子像素、数据信号芯片，用于向所述像素传输数据信号组以及控制单元，所述驱动方法包括：
    在所述数据信号芯片向所述像素传输预设数据信号组时，所述控制单元控制所述白色子像素呈暗态。
  19. 根据权利要求18所述的驱动方法，其中，所述像素接收到所述预设数据信号组时，所述像素发出混合色光，所述白色子像素发出白光，所述白光使人眼观看到所述混合色光的亮度比所述混合色光的实际亮度低预设百分比。
  20. 根据权利要求19所述的驱动方法，其中，所述预设百分比包括5％。
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CN107942597A (zh) * 2018-01-02 2018-04-20 京东方科技集团股份有限公司 电子纸及其显示方法、显示装置
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