WO2019161642A1 - Dispositif d'affichage en couleur - Google Patents

Dispositif d'affichage en couleur Download PDF

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Publication number
WO2019161642A1
WO2019161642A1 PCT/CN2018/099505 CN2018099505W WO2019161642A1 WO 2019161642 A1 WO2019161642 A1 WO 2019161642A1 CN 2018099505 W CN2018099505 W CN 2018099505W WO 2019161642 A1 WO2019161642 A1 WO 2019161642A1
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WIPO (PCT)
Prior art keywords
color
pixel
sub
display device
display
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PCT/CN2018/099505
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English (en)
Chinese (zh)
Inventor
胡典禄
王喜杜
曾晞
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广州奥翼电子科技股份有限公司
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Publication of WO2019161642A1 publication Critical patent/WO2019161642A1/fr

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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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating 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 
    • G02F1/13—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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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

Definitions

  • the present invention relates to the field of display devices, and more particularly to a color display device.
  • Electrophoretic displays are paper-thin, soft and rewritable displays that have gained increasing popularity in billboards and price cards in recent years.
  • the existing electrophoretic display basically can only display two colors of black and white, which makes its application greatly limited.
  • the researchers added a color filter to the electrophoretic display to enable color display.
  • a color filter 10 is disposed on each color sub-pixel dot 9, and the color filter 10 completely covers the color sub-pixel dot 9, that is, the color filter 10 The area is equal to the area of the color sub-pixel 9 .
  • the color of the color filter 10 is dark, the display brightness of the display is low, and if the color of the color filter 10 is light, the color saturation of the display is low, so the color of the display The display is poor.
  • the present invention aims to provide a color display device with better display effect.
  • an embodiment of the present invention provides a color display device including a driving circuit board, a display layer, a common electrode, and a plurality of color filters, wherein the driving circuit board, the display layer, and the common electrode are stacked and connected.
  • the display layer is disposed between the driving circuit board and the common electrode, wherein the color display device has a plurality of sub-pixel points, wherein a part of the sub-pixel points or all sub-pixel points are color sub-pixel points, the driving circuit board Providing a plurality of sub-pixel electrodes corresponding to the plurality of sub-pixels in a one-to-one correspondence, the plurality of color filters being disposed on a viewing side of the display layer and in a direction parallel to an upper surface of the display layer Arranged, one or more color filters are disposed on each color sub-pixel point, and the area of the color filter is smaller than the area of the corresponding color sub-pixel point.
  • the color filters of adjacent color sub-pixel dots have different colors.
  • each color sub-pixel dot is provided with 2-9 color filters of the same color.
  • each color sub-pixel dot includes four rectangular color filters distributed in a matrix, and the gap between the four rectangular color filters forms a cross shape.
  • the ratio of the area of the color filter of each color sub-pixel dot to the area of each of the color sub-pixel dots is 0.13-0.9:1, preferably 0.3-0.8:1.
  • each color sub-pixel dot comprises a plurality of rectangular color filters having a gap between adjacent color filters in a direction parallel to an upper surface of the display layer, each color
  • the ratio of the gap width between adjacent color filters of the sub-pixels to the side length of the color filter is 0.1-0.6:1, preferably 0.2-0.3:1; or
  • Each color sub-pixel dot includes a rectangular color filter, and a ratio of a gap width between adjacent two color filters to a side length of the color filter is 0.05-1.75:1, preferably 0.2- 0.6:1.
  • the color display device comprises a filter substrate, and all color filters of the color display device are disposed on the filter substrate; or
  • the color display device includes a plurality of stacked filter substrates, and color filters of the same color are located on the same filter substrate.
  • the display layer comprises a plurality of display micro-units distributed laterally along the display layer, each of the display micro-units comprising a transparent closed casing and an electrophoresis liquid encapsulated in the transparent closed casing And a plurality of electrophoretic particles suspended in the electrophoresis liquid.
  • each of the display microcells comprises a plurality of charged white electrophoretic particles and a plurality of electrically neutral black electrophoretic particles;
  • Each of the display microcells includes a plurality of white electrophoretic particles and a plurality of black electrophoretic particles, and the white electrophoretic particles and the black electrophoretic particles are asymmetrically charged.
  • the common electrode is transparent and disposed on a viewing side of the display layer, and the driving circuit board is disposed on another side of the display layer opposite to the viewing side, the color a filter disposed on a viewing side of the common electrode; or
  • the driving circuit board is transparent and disposed on a viewing side of the display layer, the common electrode is disposed on another side of the display layer opposite to the viewing side, and the color filter is disposed on the driving side The viewing side of the board.
  • the display micro-unit is a microcapsule
  • the display layer further comprises a solidified dispersion medium
  • the plurality of microcapsules are distributed in the solidified dispersion medium
  • the display layer and the public The electrodes and/or the display layer and the driving circuit board are connected by an adhesive layer, and the ratio of the thickness of the display layer to the thickness of the adhesive layer is 1-10:1.
  • the plurality of sub-pixel points are distributed in a matrix, and the minimum repeating units of the plurality of sub-pixel points are arranged in RGB, RGBG, RGBW or CMYW, wherein R, G, B, C, M, Y And W are respectively a red sub-pixel point, a green sub-pixel point, a blue sub-pixel point, a cyan sub-pixel point, a magenta sub-pixel point, a yellow sub-pixel point, and a white sub-pixel point, and the white sub-pixel point is not set.
  • Color filter is respectively a red sub-pixel point, a green sub-pixel point, a blue sub-pixel point, a cyan sub-pixel point, a magenta sub-pixel point, a yellow sub-pixel point, and a white sub-pixel point, and the white sub-pixel point is not set.
  • the color display device has a plurality of pixel points, wherein some or all of the pixel points are color pixel points, and each pixel point includes 2 to 9 adjacent sub-pixel points, each Color filters of the same color are disposed on all sub-pixel points corresponding to the color pixel points, the plurality of pixel points are distributed in a matrix, and the minimum repeating unit of the plurality of pixel points is RGB, RGBG, RGBW or CMYW Arrangement, wherein R, G, B, C, M, Y, and W are red pixel, green pixel, blue pixel, cyan pixel, magenta pixel, yellow pixel, and white pixel, respectively The color filter is not disposed on the sub-pixel point corresponding to the pixel.
  • the color display device of the embodiment of the present invention since the area of the color filter is smaller than the area of the corresponding color sub-pixel point, a portion of the display layer of each color sub-pixel is not covered by the color filter, when the color When the display device performs color display, the brightness of the display layer not covered by the color filter is greater than the brightness of the display layer covered by the color filter, so the color display of the embodiment of the present invention is compared with the prior art.
  • the device has a higher display brightness in color display, and the display effect is better.
  • FIG. 1 is a schematic structural diagram of a color display device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a color display device according to another embodiment of the present invention.
  • 3 to 6 are schematic views showing the distribution of color filters in four embodiments of the present invention.
  • FIG. 7 is a schematic diagram of a color filter superposition structure according to an embodiment of the present invention.
  • FIGS 8 to 11 are schematic diagrams showing distribution of sub-pixel points according to an embodiment of the present invention.
  • Fig. 12 is a schematic view showing the distribution of color filters in the prior art.
  • an embodiment of the present invention provides a color display device including a driving circuit board 1, a display layer 2, a common electrode 3, and a plurality of color filters 4.
  • the driving circuit board 1, the display layer 2 and the common electrode 3 are connected in a stack, the display layer 2 is disposed between the driving circuit board 1 and the common electrode 3, and the driving circuit board 1 and the common electrode 3 are used to apply electricity on both sides of the display layer 2.
  • the signal causes display layer 2 to be displayed.
  • the color filter 4 is disposed on the viewing side of the display layer 2, and is arranged in a direction parallel to the upper surface (viewing side seconds) of the display layer 2, so that the color display device has a color display effect.
  • the color display device has a plurality of sub-pixel dots 8 , wherein a portion of the sub-pixel dots 8 or all of the sub-pixel dots 8 are color sub-pixel dots, and the sub-pixel electrode 11 corresponding to the plurality of sub-pixel dots 8 is disposed on the driving circuit board 1 .
  • the sub-pixel electrode 11 is connected to a driving circuit on the driving circuit board 1.
  • each sub-pixel point 8 is a minimum display unit composed of a sub-pixel electrode 11, a region corresponding to the sub-pixel electrode 11 on the display layer 2, and a region corresponding to the sub-pixel electrode 11 on the common electrode 3, and a sub-pixel point.
  • the size of 8 is typically between 50 and 200 microns, and color display devices typically include hundreds of thousands to tens of millions of sub-pixel points.
  • all of the sub-pixels 8 may be color sub-pixels 8, such as red, blue, and green, or some sub-pixels 8 may be white sub-pixels, and the other sub-pixels 8 may be colored sub-pixels.
  • Pixel point 8 In general, three to four adjacent sub-pixel dots 8 may constitute a minimum repeating unit on a color display device, that is, constitute one pixel.
  • each color sub-pixel point 8 is provided with one or more color filters 4, and the area of the color filter 4 is smaller than the area of the corresponding color sub-pixel point 8.
  • the area referred to herein means the area on a plane parallel to the upper surface of the display layer 2.
  • the area of the sub-pixel point 8 referred to herein is calculated by dividing the area of the display area on the display layer 2 by the number of sub-pixel points 8.
  • the area of the color filter 4 referred to herein means the total area occupied by the color filter 4 of the color sub-pixel point 8.
  • the area of the color filter 4 is the area of the color filter 4; when the color sub-pixel point 8 is provided with a plurality of color filters At 4 o'clock, the area of the color filter 4 is the sum of the areas of the plurality of color filters 4.
  • the shape of the color filter 4 may be a rectangle, a triangle, a hexagon, a circle, or the like. The color that can be displayed for each color sub-pixel point 8 is determined by the color of its corresponding color filter 4.
  • the color filter 4 Since the area of the color filter 4 on each color sub-pixel point 8 is smaller than the area of the corresponding color sub-pixel point 8, that is, the color filter 4 only partially covers the color sub-pixel point 8, so that each color sub-segment
  • the pixel 8 has a portion of the display layer 2 exposed from the area not covered by the color filter 4, so that when the display layer 2 displays white, the display brightness of the color sub-pixel 8 can be made higher by color
  • the filter material of the filter 4 is made thicker, the color saturation of the color sub-pixel dots 8 can be made higher, so that the color display effect of the color display device is better.
  • the color filter 4 may not be disposed on the viewing side.
  • each sub-pixel point 8 may be distributed in a matrix to form a plurality of rectangular block arrays, and the minimum repeating unit is arranged in RGB, RGBG, RGBW or CMYW, wherein R, G, B, C, M, Y, and W respectively Red color sub-pixels, green sub-pixels, blue sub-pixels, cyan sub-pixels, magenta sub-pixels, yellow sub-pixels, and white sub-pixels, color filters 4 on each color sub-pixel The color of the color is the same as the color of each color sub-pixel, and the color filter 4 is not provided on the white sub-pixel.
  • the RGB arrangement is as shown in FIG. 9, that is, three R, G, and B sub-pixels are arranged in a horizontal or vertical direction to form a minimum repeating unit, that is, a pixel point, wherein the order of R, G, and B can be changed. Then, a plurality of minimum repeating units are repeatedly arranged in the lateral direction and the longitudinal direction based on the minimum repeating unit.
  • the arrangement of RGBG is as shown in Fig. 8. That is, four R, G, B, and G sub-pixels are arranged in a rectangular shape to form a minimum repeating unit, that is, one pixel point, and two G sub-pixel points are diagonal.
  • the line distribution is then repeated with a plurality of minimum repeating units in the lateral and longitudinal directions based on the minimum repeating unit.
  • the RGBW arrangement is that R, G, B, and W sub-pixels are arranged in a rectangular shape to form a minimum repeating unit, and the order of R, G, B, and W can be changed, as shown in FIG. 3 and FIG. Shown.
  • the CMYW arrangement is that the four sub-pixels of C, M, Y, and W are arranged in a rectangular shape to form a minimum repeating unit, and the order of C, M, Y, and W can be changed, as shown in FIG.
  • the color display device has a plurality of pixel points, wherein some of the pixel points or all of the pixel points are color pixel points, and each pixel point includes 2 to 9 adjacent sub-pixel points 8, each of A color filter of the same color is disposed on all sub-pixels 8 corresponding to the color pixel, and a plurality of pixel points are distributed in a matrix, and the smallest repeating unit of the plurality of pixels is arranged in RGB, RGBG, RGBW or CMYW.
  • R, G, B, C, M, Y, and W are red pixel, green pixel, blue pixel, cyan pixel, magenta pixel, yellow pixel, and white pixel, respectively, white pixel
  • the color filter 4 is not provided on the corresponding sub-pixel point 8.
  • the two sub-pixels 8 are distributed along the lateral or longitudinal direction of the display layer 2, and when each pixel includes nine adjacent sub-pixels 8, These nine adjacent sub-pixel points 8 can be distributed in a nine-square format. Taking the color display device shown in FIG.
  • each pixel includes four adjacent sub-pixel points 8 distributed in a rectangular shape, and a plurality of pixel points are distributed in an RGBW manner, and each of the red pixel points includes four upper settings.
  • the color display device of this embodiment can be applied to a scene where the pixel precision is not high.
  • 2-9 color filters 4 can be placed on each color sub-pixel dot 8.
  • two color filters 4 may be arranged side by side, when each color sub-pixel point 8
  • the four color filters 4 may be distributed in a matrix.
  • nine color filters 4 are disposed on each color sub-pixel point 8
  • nine color filters 4 are provided.
  • each color sub-pixel dot 8 includes four rectangular color filters 4 distributed in a matrix, and the gap between the four rectangular color filters 4 forms a cross. This arrangement can make the color sub-pixel dots 8 have a balanced color and brightness distribution, and the display effect is better.
  • the ratio of the area of the color filter 4 of each color sub-pixel dot 8 to the area of each color sub-pixel point 8 is from 0.13 to 0.9:1. If the ratio of the area is too small, the color saturation of the color display device is lowered, and if the ratio of the area is too large, the brightness of the color display device is lowered. Controlling the ratio of the area to 0.13-0.9:1 ensures that the color display device has a better display effect.
  • the ratio of the area of the color filter 4 of each color sub-pixel point 8 to the area of each color sub-pixel point 8 is 0.3-0.8:1.
  • each color sub-pixel dot 8 includes a plurality of rectangular color filters 4, between adjacent color filters 4 in a direction parallel to the upper surface of the display layer 2.
  • the side length of the rectangular color filter 4 (including the long side length and the wide side length) is between 40 and 160 microns, between each adjacent color filter 4 of each color sub-pixel point 8.
  • the ratio of the gap width to the side length of the color filter 4 is from 0.1 to 0.6:1, preferably from 0.2 to 0.3:1.
  • the side length of the color filter 4 referred to herein means the side length of the opposite sides of the two rectangles corresponding to the gap. That is, as shown in FIG.
  • each color sub-pixel dot 8 includes two rectangular color filters 4 arranged at intervals, a pitch w between two rectangular color filters 4, and two rectangular color filters 4
  • the ratio of the side length d of the opposite side is 0.1-0.6:1.
  • a display includes 800*600 sub-pixels 8, each sub-pixel 8 is a square having a side length of 110 micrometers, and its w value can be 10 micrometers, and the d value can be 100 micrometers correspondingly, and the w value can also be For 40 microns, the d value can correspondingly be 70 microns.
  • each color sub-pixel dot 8 includes a rectangular color filter 4 adjacent to two color filters 4 (ie, adjacent two color sub-pixel dots 8).
  • the ratio of the gap width between the color filters 4) to the side length of the color filter 4 is 0.05 to 1.75:1, preferably 0.2 to 0.6:1.
  • a square having a side length of 110 micrometers per sub-pixel point 8 may have a gap width of 6 micrometers between adjacent two color filters 4, and a side length of the color filter 4 may be 104 micrometers.
  • the gap width between adjacent two color filters 4 may be 70 micrometers, and the side length of the color filter 4 may correspondingly be 40 micrometers.
  • the color display device includes a filter substrate 41 on which all of the color filters 4 of the color display device are disposed.
  • a plurality of color filters 4 can be formed by forming filter films of different colors on the same filter substrate 41 by printing, vapor deposition, or the like.
  • the color display device includes a plurality of stacked filter substrates 41, and the color filters 4 of the same color are located on the same filter substrate 41, and different filter substrates The color filters 4 on the 41 are staggered and do not overlap.
  • each of the color filters 4 may be independent of each other, that is, the same filter substrate 41 is not shared.
  • the display layer 2 includes a plurality of display micro-units 21 distributed laterally along the display layer 2.
  • Each display micro-unit 21 includes a transparent closed casing, an electrophoresis liquid encapsulated in a transparent closed casing, and A plurality of colored electrophoretic particles suspended in an electrophoresis fluid. Under the action of the voltages of the pixel electrode 11 and the common electrode 3, the electrophoretic particles move in the electrophoresis liquid, approaching or moving away from the pixel electrode 11 and the common electrode 3, thereby forming a pattern or a character.
  • display microcell 21 can be a microcapsule or a microcup.
  • microcapsule 21 is shown to be a microcapsule
  • the transparent closed casing is the wall of the microcapsule
  • the transparent closure is a spacer material between the microcups.
  • display layer 2 can also be a cholesteric liquid crystal display layer or an electrowetting display layer.
  • each display microcell 21 comprises a plurality of charged white electrophoretic particles and a plurality of electrically neutral black electrophoretic particles, the plurality of white electrophoretic particles being driven by an electrical signal to the display microcell 21
  • the sub-pixel 8 has the same color as the color filter 4, and when the white electrophoretic particles are away from the viewing side of the display micro-unit 21, the sub-pixel 8 is black.
  • the working principle of the color display device can be referred to the related description in Chinese Patent Application No. CN101738814A.
  • each display microcell 21 comprises a plurality of white electrophoretic particles and a plurality of black electrophoretic particles, and the white electrophoretic particles and the black electrophoretic particles are oppositely charged, for example, the white electrophoretic particles are positively charged, and the black electrophoretic particles are With a negative charge.
  • the black electrophoretic particles are driven to the side of the display microcell 21 away from the viewing side, the subpixel 8 being colored with the color filter 4 The same color, while the white electrophoretic particles are away from the viewing side of the display microcell 21, the black electrophoretic particles are driven to the viewing side of the display microcell 21, at which point the subpixel dot 8 is black.
  • the common electrode 3 is transparent and disposed on the viewing side of the display layer 2.
  • the driving circuit board 1 is disposed on the other side of the display layer 2 opposite to the viewing side, and the color filter 4 is disposed on the common electrode 3. side.
  • the common electrode 3 can be obtained by coating, vapor-depositing or the like on a PET, PT or glass substrate by using an ITO conductive film or a graphene conductive film, and the driving circuit board 1 can pass through the glass or
  • the driving circuit and the pixel electrode 11 are formed by a semiconductor process on a plastic substrate, and an integrated circuit chip or the like can be disposed on the driving circuit board 1.
  • the common electrode 3 and the driving circuit board 1 can be connected by a metal wire passing through the display layer 2.
  • a transparent protective cover 6 may be disposed outside the viewing side of the color filter 4, and a sealant 7 is filled between the transparent protective cover 6 and the driving circuit board 1, and the display layer 2, the common electrode 3, the color filter 4, etc. Encapsulated.
  • the driving circuit board 1 is transparent and disposed on the viewing side of the display layer 2, and the common electrode 3 is disposed on the other side of the display layer 2 opposite to the viewing side, the color filter 4 It is disposed on the viewing side of the driving circuit board 1.
  • the driving circuit board 1 can be obtained by forming a thin film transistor (TFT) circuit by using a semiconductor process on a glass substrate or a PET substrate.
  • TFT thin film transistor
  • the common electrode 3 can be transparent or opaque, and the common electrode 3 and the display layer 2 are outsourced. Cover the sealant 7. In other embodiments, when the common electrode 3 is disposed on the viewing side of the display layer 2, the color filter 4 may also be disposed between the display layer 2 and the common electrode 3.
  • the display micro-unit 21 is a microcapsule
  • the display layer 2 further comprises a solidified dispersion medium.
  • the plurality of microcapsules are distributed in the solidified dispersion medium, and the display layer 2 and the common electrode 3 are
  • the interlayer and/or display layer 2 is connected to the driving circuit board 1 through the adhesive layer 5, and the ratio of the thickness of the display layer 2 to the thickness of the adhesive layer 5 is 1-10:1.
  • the display layer 2 can be formed by coating an electronic ink on the common electrode 3, the electronic ink containing a plurality of microcapsules, and then drying the electronic ink to form the display layer 2.
  • the composition and manufacturing method of the electronic ink can be referred to the relevant description in the Chinese patent application CN106292118A.
  • the adhesive layer 5 can be formed by coating an adhesive on the surface of the display layer 2 and curing.
  • the adhesive layer 5 can have a certain electrical conductivity. If the adhesive layer 5 is too thick, the voltage applied to the display layer 2 by the common electrode 3 and the driving circuit board 1 is lowered.
  • the adhesive layer 5 is transparent, and the too thick adhesive layer 5 affects the light transmittance of the display layer 2 to the surface of the color display device, thereby affecting the color display.
  • Optical properties of the device Optical properties of the device.
  • the ratio of the thickness of the display layer 2 to the thickness of the adhesive layer 5 is controlled to 1-10:1, so that the color display device can have both good electro-optical display performance and good mechanical strength.
  • the thickness of the display layer 2 is between 20 micrometers and 150 micrometers
  • the thickness of the adhesive layer 5 is generally between 15 micrometers and 20 micrometers.
  • the color display device of the embodiment of the present invention since the area of the color filter is smaller than the area of the corresponding color sub-pixel point, a portion of the display layer of each color sub-pixel is not covered by the color filter, when the color When the display device performs color display, the brightness of the display layer not covered by the color filter is greater than the brightness of the display layer covered by the color filter, so the color display of the embodiment of the present invention is compared with the prior art.
  • the device has a higher display brightness in color display, and the display effect is better.

Abstract

La présente invention concerne un dispositif d'affichage en couleur, comprenant une carte de circuits imprimés d'attaque (1), une couche d'affichage (2), une électrode commune (3), et de multiples filtres colorés (4) ; le dispositif d'affichage en couleur comprend de multiples points sous-pixels (8) ; certains ou l'ensemble des points sous-pixels sont des points sous-pixels colorés ; la carte de circuits imprimés d'attaque (1) est pourvue de multiples électrodes de sous-pixels (11) ayant une correspondance biunivoque avec les multiples points sous-pixels (8) ; chaque point sous-pixel coloré (8) est pourvu d'un ou de plusieurs des filtres colorés (4) ; la surface des filtres colorés (4) est inférieure à la surface du point sous-pixel coloré correspondant (8). Par conséquent, par comparaison avec l'état de la technique, le dispositif d'affichage en couleur a une luminosité d'affichage supérieure et un meilleur effet d'affichage pendant l'affichage en couleur.
PCT/CN2018/099505 2018-02-26 2018-08-09 Dispositif d'affichage en couleur WO2019161642A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810160080.5A CN108333847A (zh) 2018-02-26 2018-02-26 一种彩色显示器件
CN201810160080.5 2018-02-26

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TWI779520B (zh) * 2021-03-16 2022-10-01 元太科技工業股份有限公司 色彩濾波模組
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