Color film substrate, driving method thereof, and display panel

Abstract

The embodiment of the present application discloses a color film substrate, a driving method thereof and a display panel. In a specific embodiment, the color film substrate comprises a first substrate and a second substrate arranged oppositely, and a cholesteric liquid crystal layer arranged between the first substrate and the second substrate. The first substrate is provided with a first electrode on the side facing the second substrate, and the second substrate is provided with a second electrode on the side facing the first substrate. The first electrode comprises a plurality of first sub-electrodes arranged in an array, and / or the second electrode comprises a plurality of second sub-electrodes arranged in an array. At least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes are configured to be applied with the same voltage, and N>1. The embodiment does not need to be re-made when the color film needs to be changed. Meanwhile, the pattern size and arrangement mode can be arbitrarily changed. The embodiment can improve the mismatch between the text processing mode and the pixel arrangement, save the cost, effectively improve the module quality and the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display. More particularly, it relates to a color film substrate and a driving method thereof, and a display panel. BACKGROUND

[0002] At present, TFT LCD products need corresponding color film to realize color display when developing each model. Moreover, the production cycle of color film factory is relatively long, which affects the product production cost and product development schedule. In addition, the malpractice of mismatching between text processing mode and pixel arrangement also needs to be solved by changing color film. SUMMARY

[0003] The present application aims to provide a color film substrate and a driving method thereof, and a display panel, to solve at least one of the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] The present application provides a color film substrate, comprising a first substrate and a second substrate arranged oppositely, and a cholesteric liquid crystal layer arranged between the first substrate and the second substrate, wherein the first substrate is provided with a first electrode on the side facing the second substrate, and the second substrate is provided with a second electrode on the side facing the first substrate.

[0006] The first electrode comprises a plurality of first sub-electrodes arranged in an array, and / or the second electrode comprises a plurality of second sub-electrodes arranged in an array, wherein at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes are configured to be applied with the same voltage, and N>1.

[0007] Optionally, the plurality of first sub-electrodes are connected to a peripheral circuit through a plurality of first lead lines connected to the plurality of first sub-electrodes one by one, and the plurality of second sub-electrodes are connected to the peripheral circuit through a plurality of second lead lines connected to the plurality of second sub-electrodes one by one.

[0008] Optionally, the first electrode comprises a plurality of first sub-electrodes arranged in an array, and the second electrode comprises a plurality of second sub-electrodes arranged in an array, and the orthographic projection of each first sub-electrode on the first substrate coincides with the orthographic projection of a second sub-electrode on the first substrate.

[0009] Optionally, the first electrode comprises a plurality of first sub-electrodes arranged in an array, and the second electrode covers the second substrate, and the second electrode is provided with a first adhesive layer on the side facing the first substrate, and the orthographic projection of the first adhesive layer on the first substrate coincides with the orthographic projection of the gap between adjacent first sub-electrodes on the first substrate; or,

[0010] The second electrode comprises a plurality of second sub-electrodes arranged in an array, and the first electrode covers the first substrate, and a second adhesive layer is arranged on the side of the first electrode facing the second substrate, and a projection of the second adhesive layer on the second substrate coincides with a gap between adjacent second sub-electrodes.

[0011] Optionally, the first electrode and the second electrode are transparent electrodes, respectively.

[0012] The second aspect of the present application provides a display panel, comprising a color film substrate and an array substrate arranged oppositely, and a liquid crystal layer arranged between the color film substrate and the array substrate, wherein the array substrate comprises a third substrate and a driving circuit layer arranged on the third substrate, and the driving circuit layer comprises a plurality of pixel electrodes arranged in an array, and a projection of each first sub-electrode and / or second sub-electrode on the third substrate covers a projection of a pixel electrode on the third substrate.

[0013] Optionally, a projection of each first sub-electrode and / or second sub-electrode on the third substrate coincides with a projection of a pixel electrode on the third substrate.

[0014] The third aspect of the present application provides a display panel, comprising a first substrate and an array substrate arranged oppositely, and a hybrid liquid crystal layer arranged between the color film substrate and the array substrate, wherein the hybrid liquid crystal layer comprises liquid crystal and cholesteric liquid crystal, the array substrate comprises a third substrate and a driving circuit layer arranged on the third substrate, and the driving circuit layer comprises a plurality of pixel electrodes arranged in an array, and the side of the first substrate facing the third substrate is provided with a first electrode, and the first electrode comprises a plurality of first sub-electrodes arranged in an array, and at least N first sub-electrodes are configured to be applied with the same voltage.

[0015] Optionally, a projection of each first sub-electrode on the third substrate covers a projection of a pixel electrode on the third substrate.

[0016] The fourth aspect of the present application provides a driving method of a color film substrate, comprising:

[0017] According to the design size of the pixel, the same voltage is applied to at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes, so that a cholesteric liquid crystal layer region corresponding to the projection of at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes is formed into a color resistance unit with a color corresponding to the voltage, and the size of the cholesteric liquid crystal layer region matches the design size of the pixel.

[0018] The present application has the following beneficial effects:

[0019] The color film substrate provided by the present application does not need to be re-made when the color film needs to be changed, the size and arrangement of the pattern can be changed at will, the cost is saved while the mismatch between the text processing mode and the pixel arrangement is improved, and the module quality and production efficiency are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0021] Figure 1 A structure schematic diagram of a color film substrate provided by an embodiment of the present application is shown.

[0022] Figure 2 A first sub-electrode and peripheral circuit wiring schematic diagram of a color film substrate provided by an embodiment of the present application is shown.

[0023] Figure 3 A second sub-electrode and peripheral circuit wiring schematic diagram of a color film substrate provided by an embodiment of the present application is shown.

[0024] Figure 4 A structure schematic diagram of another color film substrate provided by an embodiment of the present application is shown.

[0025] Figure 5 A glue frame separation area schematic diagram of a color film substrate provided by an embodiment of the present application is shown.

[0026] Figure 6 A structure schematic diagram of still another color film substrate provided by an embodiment of the present application is shown.

[0027] Figure 7 A glue frame separation area schematic diagram of a color film substrate provided by an embodiment of the present application is shown.

[0028] Figure 8 A control signal jumper structure schematic diagram of a color film substrate provided by an embodiment of the present application is shown.

[0029] Figure 9 A structure schematic diagram of a display panel provided by an embodiment of the present application is shown.

[0030] Figure 10 A structure schematic diagram of another display panel provided by an embodiment of the present application is shown.

[0031] Figure 11 A multiplexing structure schematic diagram of a display panel provided by an embodiment of the present application is shown.

[0032] Figure 12 A multiplexing structure schematic diagram of another display panel provided by an embodiment of the present application is shown.

[0033] Figure 13 FIG. 1 shows a display diagram of a color film substrate according to an embodiment of the present application.

[0034] Figure 14 FIG. 2 shows another display diagram of a color film substrate according to an embodiment of the present application.

[0035] Figure 15 FIG. 3 shows a display diagram of a display panel according to an embodiment of the present application.

[0036] Figure 16 FIG. 4 shows another display diagram of a display panel according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] The terms "on", "formed on" and "disposed on" described in the present disclosure can mean that a layer is directly formed or disposed on another layer, or can mean that a layer is indirectly formed or disposed on another layer, i.e. there are other layers between the two layers.

[0038] It should be noted that although the terms "first", "second" and the like can be used herein to describe various components, members, elements, regions, layers and / or sections, these components, members, elements, regions, layers and / or sections should not be limited by these terms. Instead, these terms are used only to distinguish one component, member, element, region, layer and / or section from another. Thus, for example, a first component, a first member, a first element, a first region, a first layer and / or a first section discussed below can be termed a second component, a second member, a second element, a second region, a second layer and / or a second section without departing from the teachings of the present disclosure.

[0039] In the present disclosure, the term "disposed in the same layer" adopted herein means that two layers, components, members, elements or sections can be formed by the same preparation process (e.g. a patterning process, etc.), and the two layers, components, members, elements or sections are generally formed of the same material. For example, two or more functional layers disposed in the same layer means that these functional layers disposed in the same layer can be formed using the same material layer and by the same preparation process, so that the preparation process of the display substrate can be simplified.

[0040] In the present disclosure, the expression "patterning process" generally includes the steps of coating, exposing, developing, etching, stripping of photoresist, etc. The expression "one-time patterning process" means a process of forming a patterned layer, component, member, etc. using one mask plate.

[0041] At present, the TFT LCD product needs the corresponding color film to realize the color display when developing each model, and the production cost and product development schedule are affected due to the long production cycle of the color film factory. In addition, the color film needs to be changed to solve the problem of the mismatch between the text processing mode and the pixel arrangement.

[0042] Therefore, the first embodiment of the present application provides a color film substrate, as shown in the drawings, comprising a first substrate 100 and a second substrate 200 arranged oppositely, and a cholesteric liquid crystal layer 300 arranged between the first substrate 100 and the second substrate 200, wherein the first substrate 100 is provided with a first electrode 103 on the side facing the second substrate 200, and the second substrate 200 is provided with a second electrode 203 on the side facing the first substrate 100. Figure 1

[0043] As shown in the drawings, the first electrode 103 comprises a plurality of first sub-electrodes (for example, 1031, 1032, 1033 and 1034) arranged in an array, and / or the second electrode 203 comprises a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, wherein at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes are configured to be applied with the same voltage, N>1. Figure 1

[0044] Specifically, as shown in the drawings, 2 adjacent first sub-electrodes (for example, 1031 and 1032, 1032 and 1033, 1033 and 1034) and / or 2 adjacent second sub-electrodes (for example, 2031 and 2032, 2032 and 2033, 2033 and 2034) are configured to be applied with the same voltage. Figure 1

[0045] 3 adjacent first sub-electrodes (for example, 1031 and 1032 and 1033, 1032 and 1033 and 1034) and / or 3 adjacent second sub-electrodes (for example, 2031 and 2032 and 2033, 2032 and 2033 and 2034) are configured to be applied with the same voltage; and the like.

[0046] In an optional example, the adjacent can also refer to the adjacent in the column direction or the diagonal direction, etc.

[0047] In a specific example, the first electrode 103 and the second electrode 203 are used to form an electric field by being applied with a voltage, so that the cholesteric liquid crystal layer 300 region located between the first electrode 103 and the second electrode 203 forms a color resistance layer corresponding to the electric field.

[0048] ​​​Further, the electrically controlled color cholesteric liquid crystal is voltage-controlled color, 18-20V controls red, 24-25V controls green, and 28-30V controls blue.

[0049] The embodiment does not need to be re-made when the color film needs to be changed, can change the pattern size and arrangement mode at will, saves cost while improving the mismatch between the text processing mode and the pixel arrangement, and effectively improves the module quality and production efficiency.

[0050] In a possible implementation, as shown in Figure 2 and Figure 3 , the plurality of first sub-electrodes (1031, 1032, 1033, and 1034) are connected to the peripheral circuit 107 through a plurality of first lead lines connected to the plurality of first sub-electrodes one by one, and the plurality of second sub-electrodes (2031, 2032, 2033, and 2034) are connected to the peripheral circuit 207 through a plurality of second lead lines connected to the plurality of second sub-electrodes one by one.

[0051] Specifically, the peripheral circuit is arranged on the same side of the color film substrate, can also be arranged on the adjacent side, or can also be arranged on the opposite side.

[0052] In a possible implementation, as shown in Figure 1 , the first electrode 103 includes a plurality of first sub-electrodes (for example, 1031, 1032, 1033, and 1034) arranged in an array, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033, and 2034) arranged in an array, and the orthographic projection of each first sub-electrode (for example, 1031, 1032, 1033, and 1034) on the first substrate 100 coincides with the orthographic projection of a second sub-electrode (for example, 2031, 2032, 2033, and 2034) on the first substrate 100.

[0053] For example, as shown in Figure 1 , the orthographic projection of the first sub-electrode 1031 on the first substrate 100 coincides with the orthographic projection of the second sub-electrode 2031 on the first substrate 100; the orthographic projection of the first sub-electrode 1032 on the first substrate 100 coincides with the orthographic projection of the second sub-electrode 2032 on the first substrate 100; and so on.

[0054] In a possible implementation, as shown in Figure 4 , the first electrode 103 includes a plurality of first sub-electrodes (for example, 1031, 1032, 1033, and 1034) arranged in an array, and the second electrode 203 covers the second substrate 200, and the side of the second electrode 203 facing the first substrate 100 is provided with a first adhesive layer (not shown in the figure). Figure 4 , the orthographic projection of the first sub-electrode 1031 on the first substrate 100 coincides with the orthographic projection of the second sub-electrode 2031 on the first substrate 100; the orthographic projection of the first sub-electrode 1032 on the first substrate 100 coincides with the orthographic projection of the second sub-electrode 2032 on the first substrate 100; and so on.Figure 5 As shown in FIG. 1, the first electrode 103 covers the first substrate 100, and the first electrode 103 is provided with a first adhesive layer (not shown in the figure) on the side facing the second substrate 200. As shown in FIG. 1, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, and the second electrode 203 covers the second substrate 200.

[0055] As shown in FIG. 1, the first electrode 103 covers the first substrate 100, and the first electrode 103 is provided with a first adhesive layer (not shown in the figure) on the side facing the second substrate 200. As shown in FIG. 1, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, and the second electrode 203 covers the second substrate 200. Figure 6 As shown in FIG. 1, the first electrode 103 covers the first substrate 100, and the first electrode 103 is provided with a first adhesive layer (not shown in the figure) on the side facing the second substrate 200. As shown in FIG. 1, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, and the second electrode 203 covers the second substrate 200. Figure 6 As shown in FIG. 1, the first electrode 103 covers the first substrate 100, and the first electrode 103 is provided with a first adhesive layer (not shown in the figure) on the side facing the second substrate 200. As shown in FIG. 1, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, and the second electrode 203 covers the second substrate 200. Figure 7 As shown in FIG. 1, the first electrode 103 covers the first substrate 100, and the first electrode 103 is provided with a first adhesive layer (not shown in the figure) on the side facing the second substrate 200. As shown in FIG. 1, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, and the second electrode 203 covers the second substrate 200.

[0056] In a possible implementation, the first electrode 103 and the second electrode 203 are transparent electrodes.

[0057] In a specific example, the first substrate 100 is a color film upper substrate, which can be a glass substrate. The second substrate 200 is a color film lower substrate, which can be a glass substrate or a flexible substrate. The first electrode 103 and the second electrode 203 are both transparent electrode layers, for example, indium tin oxide (ITO) electrodes.

[0058] It should be noted that the color film lower substrate can be a glass material after thinning, or a flexible insulating film, which is not limited herein, and any material having an insulating effect is within the protection scope of the present disclosure; the transparent electrode is an ITO material or other transparent conductive material, which is not limited herein.

[0059] In a possible implementation, as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the color film substrate further includes a first orientation layer 104 provided on the side of the first electrode 103 facing the second substrate 200, and a second orientation layer 204 provided on the side of the second electrode 203 facing the first substrate 100. Figure 1 、 Figure 4 and Figure 6 As shown in FIG. 1, the first electrode 103 covers the first substrate 100, and the first electrode 103 is provided with a first adhesive layer (not shown in the figure) on the side facing the second substrate 200. As shown in FIG. 1, the second electrode 203 includes a plurality of second sub-electrodes (for example, 2031, 2032, 2033 and 2034) arranged in an array, and the second electrode 203 covers the second substrate 200.

[0060] The color film substrate further includes a first wiring layer 101 provided on the side of the first substrate 100 facing the second substrate 200; and a second wiring layer 201 provided on the side of the second substrate 200 facing the first substrate 100.

[0061] The color film substrate further comprises a first jump hole insulating layer 102 arranged on the side of the first trace layer 100 facing the second substrate 200; and a second jump hole insulating layer 201 arranged on the side of the second trace layer 201 facing the first substrate 100.

[0062] Further, as shown in Figure 8 The first jump hole insulating layer 102 and the second jump hole insulating layer 202 are shown in the structural schematic diagram.

[0063] In a possible implementation, the surface of the first sub-electrode and / or the second sub-electrode facing the cholesteric liquid crystal layer 300 has a concave-convex structure.

[0064] Specifically, the first sub-electrode and / or the second sub-electrode is designed in a wave shape to increase the utilization of diffuse reflection of the panel light source for multiple times, and to improve the light efficiency.

[0065] Further, the cholesteric phase is an important phase state of liquid crystal molecules. In the cholesteric phase, the liquid crystal molecules are arranged in layers and have a continuous spiral structure. The liquid crystal molecules in the cholesteric phase can realize selective transmission, that is, the cholesteric liquid crystal layer can realize selective transmission.

[0066] The new color film structure disclosed in the embodiment is arranged on the upper side of the TFT substrate, and comprises two thinned glass substrates (the first substrate 100 and the second substrate 200); the lower surface of the upper glass substrate and the upper surface of the lower glass substrate are electrode layers, which can be ITO transparent electrode layers used in factory production, and can control the independent variable color module of the color film surface corresponding to each pixel; the lower surface of the upper electrode (the first electrode 103) and the upper surface of the lower electrode (the second electrode 203) are coated with a liquid crystal alignment layer; and the liquid crystal layer is arranged between the two alignment layers.

[0067] The liquid crystal layer involved in the embodiment replaces the traditional RGB color resistance, can realize unification, diversification and improvement of color gamut of various models, and can realize unification and diversification of various models by using the new color film to realize the effect of variable graphics, solve the design loss of irreversible traditional solidified color resistance, flexibly use and save cost; the trace layer is designed separately; and the voltage corresponding to the pixel block combination is changed flexibly, the pixel size is changed at will, the master plate is a large plate, the area is separated, and RGB partitioning can be realized at the same time, and RGB can be displayed at the same time.

[0068] The second embodiment of the application provides a display panel, as shown in Figure 9As shown, the display panel includes a color film substrate and an array substrate 400 arranged oppositely, and a liquid crystal layer 500 arranged between the color film substrate and the array substrate 400. The array substrate 400 includes a third substrate 401 and a driving circuit layer arranged on the third substrate 401. The driving circuit layer includes a plurality of pixel electrodes 402 arranged in an array. The orthographic projection of each of the first sub-electrode and / or the second sub-electrode on the third substrate 401 covers the orthographic projection of one of the pixel electrodes 402 on the third substrate 401.

[0069] In an optional embodiment, the display panel includes a color film substrate as any one of Figure 1 、 Figure 4 or Figure 6 shown. Further, the liquid crystal layer 500 further includes support columns 600 and support balls 700 such as silicon balls.

[0070] In a specific example, the display panel includes the color film substrate and the array substrate 400 arranged oppositely. The array substrate 400 includes a third substrate 401 which can be made of glass, quartz or other materials. The display panel provided in the embodiment further includes a barrier layer and a buffer layer between the substrate and the driving circuit layer. For example, the barrier layer and the buffer layer can be formed on the substrate. The barrier layer can be made of inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride. The buffer layer can also be made of inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride. The barrier layer is beneficial to prevent water and oxygen from entering the array substrate from the bottom. The buffer layer is beneficial to the quality of subsequent material deposition.

[0071] The driving circuit layer can also be referred to as a thin film transistor (TFT) layer. The TFT layer includes an active layer formed on the buffer layer by a patterning process, a gate insulating layer formed on the active layer by deposition or other methods, a gate of a thin film transistor formed on the gate insulating layer by a patterning process, an interlayer dielectric layer formed on the gate by deposition or other methods, and a source / drain metal layer formed on the interlayer dielectric layer. The source / drain metal layer forms a source and a drain of the thin film transistor. For example, the source is electrically connected to the active layer through a via hole in the interlayer dielectric layer. The active layer can be made of polycrystalline silicon and metal oxide. The gate insulating layer can be made of inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride. The interlayer dielectric layer can be made of inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride. The gate material includes metals or alloy materials such as aluminum, titanium and cobalt.

[0072] The flat layer (PLN) and the insulating layer (the insulating layer can be regarded as a part of the flat layer extending to the isolation region) arranged in the same layer, for example, an organic material, the thickness is, for example, about 1 μm to 3 μm, and the pixel electrode 402 made of, for example, a metal oxide such as ITO, IZO or a metal or an alloy material such as Ag, Al or Mo is electrically connected to the drain electrode through the flat layer via hole.

[0073] For example, the display region further comprises a common electrode 405.

[0074] In a possible implementation manner, as shown in Figure 9 the orthographic projection of each of the first sub-electrode and / or the second sub-electrode on the third substrate 401 coincides with the orthographic projection of the pixel electrode 402 on the third substrate.

[0075] In a possible implementation manner, the surface of the pixel electrode 402 facing the liquid crystal layer has a concave-convex structure.

[0076] Specifically, the pixel electrode 402 is designed in a wave shape to increase the utilization of the diffuse reflection of the light source entering the panel multiple times and improve the light efficiency.

[0077] In a specific example, as shown in Figure 10 the TFT pixel electrode 402 and the novel small piece of film under substrate electrode (the second sub-electrode) are designed in a wave shape to increase the utilization of the diffuse reflection of the light source entering the panel multiple times and improve the light efficiency.

[0078] The embodiment does not need to be re-made when the film needs to be changed, can arbitrarily change the size and arrangement of the pattern, saves the cost while improving the mismatch between the text processing mode and the pixel arrangement, and effectively improves the module quality and production efficiency.

[0079] A third embodiment of the present application provides a display panel, as shown in Figure 11 which is a display panel with nematic liquid crystal, comprising a first substrate 100 and an array substrate 400 arranged oppositely, and a mixed liquid crystal layer 800 arranged between the film substrate and the array substrate 400, the mixed liquid crystal layer 800 comprises liquid crystal 802 and cholesteric liquid crystal 801, the array substrate 400 comprises a third substrate 401 and a driving circuit layer arranged on the third substrate 401, the driving circuit layer comprises a plurality of pixel electrodes (for example, 40211, 40212, 40213 and 40214) arranged in an array, the first electrode 103 of the first substrate 100 is arranged towards the third substrate 401, and the first electrode 103 comprises a plurality of first sub-electrodes (for example, 10311, 10312, 10313 and 10314) arranged in an array, and at least N first sub-electrodes are configured to be applied with the same voltage.

[0080] Specifically, the adjacent multiple electrode-controlled color cholesteric liquid crystal is voltage-controlled color, including 18-20V controlling red, 24-25V controlling green, and 28-30V controlling blue. Further, the liquid crystal 802 includes nematic liquid crystal or IPS liquid crystal.

[0081] In one specific example, each driving line is overlapped to the controlled pixel electrode small block at one end, and connected to the upper and lower substrate FPC at the other end. If 2 electrode small blocks are needed, 2 electrodes of the FPC provide the required voltage; if 3 electrode small blocks are needed, 3 electrodes of the FPC provide the same voltage to commonly drive 1 color.

[0082] In one possible implementation, the orthographic projection of each of the first sub-electrodes on the third substrate covers the orthographic projection of one of the pixel electrodes on the third substrate.

[0083] Specifically, as shown in Figure 11 The display panel with nematic liquid crystal includes the first electrode 103 including multiple first sub-electrodes (for example, 10311, 10312, 10313 and 10314) arranged in an array, and the orthographic projection of each of the first sub-electrodes (10311, 10312, 10313 and 10314) on the third substrate 401 covers the orthographic projection of one of the pixel electrodes 402 on the third substrate 401.

[0084] Further, as shown in Figure 11 The display panel with nematic liquid crystal further includes a liquid crystal alignment layer 404 arranged on the pixel electrode.

[0085] In another specific example, as shown in Figure 12 The display panel with IPS liquid crystal includes the first substrate 100 and the array substrate 400 arranged oppositely, and the mixed liquid crystal layer 800 arranged between the color film substrate and the array substrate 400, the mixed liquid crystal layer 800 including the liquid crystal 802 and the cholesteric liquid crystal 801, the array substrate 400 including the third substrate 401 and the driving circuit layer arranged on the third substrate 401, the driving circuit layer including multiple pixel electrodes (40211, 40212, 40213 and 40214) arranged in an array, Figure 8 The multiple pixel electrodes (40211, 40212, 40213 and 40214) are wavy, and the first electrode 103 is arranged on the side of the first substrate 100 facing the third substrate 401. The multiple pixel electrodes (40211, 40212, 40213 and 40214) can also be block-shaped (not shown in the figure).

[0086] Further, as shown inFigure 12 The display panel shown is an IPS liquid crystal display panel, further comprising a common electrode 405 arranged opposite to the pixel electrode 402, and a liquid crystal alignment layer 404 arranged on the pixel electrode.

[0087] The embodiment does not need to be re-made when the color film needs to be changed, and can arbitrarily change the size and arrangement of the pattern, and save cost while improving the mismatch between the text processing mode and the pixel arrangement, effectively improving the module quality and production efficiency.

[0088] The fourth embodiment of the present application provides a driving method of a color film substrate, comprising: according to the design size of a pixel, applying the same voltage to at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes, so that the area of the cholesteric liquid crystal layer corresponding to the orthographic projection of the at least N adjacent first sub-electrodes and / or the at least N adjacent second sub-electrodes is formed into a color resistance unit whose color corresponds to the voltage, and the size of the area of the cholesteric liquid crystal layer matches the design size of the pixel.

[0089] In a specific example, the driving method of the color film substrate requires that the upper and lower electrode plates (first and second electrodes) overlap. The upper electrode plate (first electrode) corresponds to the upper electrode plate FPC, and the lower electrode plate (second electrode) corresponds to the lower electrode plate FPC.

[0090] As shown in Figure 2 Figure 3 As shown in the figure, the upper electrode plate FPC (107) and the lower electrode plate FPC (207) can be arranged on the same side of the color film substrate, or on the adjacent side, or on the opposite side.

[0091] In a specific example, each driving line is connected to the pixel electrode small block controlled by it at one end, and connected to the upper and lower substrate FPC at the other end. If one electrode small block is needed, one electrode of the FPC provides the required voltage; if three electrode small blocks are needed, three electrodes of the FPC provide the same voltage to commonly drive one color;

[0092] Further, when three or two electrode small blocks are needed, three or two electrodes of the FPC provide the same voltage (18-20V) to commonly drive red; another three or two electrode small blocks are needed, three or two electrodes of the FPC provide the same voltage (24-25V) to commonly drive green; and other three or two electrode small blocks are needed, three or two electrodes of the FPC provide the same voltage (28-30V) to commonly drive blue. Further display Figure 13 The pixel column arrangement mode shown as "red red red green green green blue blue blue" or Figure 14 The pixel column arrangement mode shown as "red red green green blue blue".

[0093] In one specific example, as shown in Figure 15 and Figure 16 As shown in the cross-sectional view of the display panel, the Dummy area (4) and the Panel Pad area (1) correspond to the new color film module which can not be powered and can not display color, thereby reducing power consumption, and the AA area (2 and 3) can change the color film module according to requirements, thereby corresponding to different development products and special requirements of customers.

[0094] Further, as shown in Figure 15 , the 6 electrode small blocks of the color film substrate in the display panel, when the 6 electrodes of the FPC are given corresponding voltages, the pixel arrangement mode of the display panel is "red green blue red green blue", by adjusting the voltage of the color film substrate, the display color of the display panel after adjustment is the pixel arrangement mode of "red red green green blue blue" as shown in Figure 16 .

[0095] The color film surface corresponding to each pixel of the display panel provided by the embodiment is an independently variable color module, and the required color can be arbitrarily changed according to the size of the pixel.

[0096] The fifth embodiment of the present application provides a preparation method of a color film structure, the method comprising:

[0097] The first lead line leading to the peripheral circuit is arranged on the first substrate, and the second lead line leading to the peripheral circuit is arranged on the second substrate;

[0098] The first electrode connected with the first lead line is formed on the first substrate, and the second electrode connected with the second lead line is formed on the second substrate, wherein the first electrode comprises a plurality of first sub-electrodes arranged in an array and / or the second electrode comprises a plurality of second sub-electrodes arranged in an array, and at least N first sub-electrodes and / or second sub-electrodes are used to be applied with the same voltage;

[0099] The frame glue is coated on one of the first substrate or the second substrate, and the cholesteric liquid crystal is dripped, the first substrate and the second substrate are subjected to lamination, and the color film substrate is obtained.

[0100] Further, forming the first electrode connected with the first lead line on the first substrate comprises: forming a first insulating layer covering the first lead line, opening a first via hole exposing the first lead line on the first insulating layer, performing ITO electrode plating on the first insulating layer, and patterning to obtain the first electrode connected with the first lead line through the first via hole.

[0101] Forming the second electrode connected with the second lead wire on the second substrate comprises: forming a second insulating layer covering the second lead wire, opening a second via hole exposing the second lead wire on the second insulating layer, performing ITO electrode plating on the second insulating layer, and patterning to obtain the second electrode connected with the second lead wire through the second via hole.

[0102] In an optional example, the method comprises using a conventional process to perform transparent electrode pattern plating on opposite sides of two thinned glass substrates (to avoid increasing the thickness of the finished product), each separate area having two electrode lines for signal control; liquid crystal alignment layer coating; electro-controlled cholesteric liquid crystal dropping; and cell assembly.

[0103] In another optional example, the method comprises using a conventional process to perform transparent electrode plating on opposite sides of two thinned glass substrates (to avoid increasing the thickness of the finished product); liquid crystal alignment layer coating; coating a separate area between the two thinned glass substrates with adhesive, each separate area having two electrode lines for signal control; electro-controlled cholesteric liquid crystal dropping; cell assembly; directly assembling the cholesteric liquid crystal layer with the conventional color film resist and the array substrate; and controlling RGB through the electro-controlled cholesteric liquid crystal layer, while the reflection effect of RGB and the transmission effect of the bottom light can increase the color gamut and enhance the vividness of the picture.

[0104] In a specific example, the method comprises thinning two glass mother plates to avoid increasing the thickness of the cell;

[0105] ITO driving electrode wiring is performed on opposite sides of the two glass mother plates, an insulating layer is deposited, a via hole corresponding to the electrode is etched, and then ITO electrode plating is performed. The lower side of the new color film lower substrate, that is, the side assembled with the TFT substrate, is also provided with ITO plating to drive the TFT liquid crystal layer to deflect;

[0106] ITO electrode plating is performed, ITO patterns are made for area segmentation, that is, two electrode lines for signal corresponding to a small pixel block, one end of each driving line is connected to the pixel electrode small block controlled thereby, and the other end is connected to the upper and lower substrate FPC. If one electrode small block is needed, one electrode of the FPC provides the required voltage. If three electrode small blocks are needed, three electrodes of the FPC provide the same voltage to commonly drive one color;

[0107] Liquid crystal alignment layer coating, liquid crystal deflection control, liquid crystal dropping or filling; according to the development model, frame sealant is coated at the relative position of the TFT substrate layout, and the two mother plates are assembled.

[0108] The embodiment proposes a preparation method of a new color film structure with variable pattern size and arrangement, which optimizes the production cost and development schedule, and improves the related defects and color gamut.

[0109] Another embodiment of the present disclosure provides a display device comprising the display panel provided by the above-mentioned embodiments. The display device can be any product or component with display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc., and the present embodiment is not limited thereto.

[0110] Obviously, the above-mentioned embodiments of the present disclosure are only examples for clearly illustrating the present disclosure, and are not intended to limit the implementation manners of the present disclosure. Based on the above-mentioned description, other different forms of changes or variations can be made by those skilled in the art, and it is impossible to enumerate all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present disclosure still fall within the protection scope of the present disclosure.

Claims

1. A color film substrate, characterized in that: The invention comprises a first substrate and a second substrate arranged opposite to each other, and a cholesteric liquid crystal layer arranged between the first substrate and the second substrate, wherein a first electrode is arranged on a side of the first substrate facing the second substrate, and a second electrode is arranged on a side of the second substrate facing the first substrate; The first electrode includes a plurality of first sub-electrodes arranged in an array, and / or the second electrode includes a plurality of second sub-electrodes arranged in an array, wherein at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes are configured to be applied with the same voltage, where N>1; A surface of the first sub-electrode and / or the second sub-electrode facing the cholesteric liquid crystal layer has a concavo-convex structure.

2. The color filter substrate according to claim 1, wherein: The multiple first sub-electrodes are connected to the peripheral circuit through multiple first leads connected one-to-one with the multiple first sub-electrodes, and the multiple second sub-electrodes are connected to the peripheral circuit through multiple second leads connected one-to-one with the multiple second sub-electrodes.

3. The color filter substrate according to claim 1, wherein: The first electrode includes a plurality of first sub-electrodes arranged in an array, and the second electrode includes a plurality of second sub-electrodes arranged in an array. The orthographic projection of each first sub-electrode on the first substrate coincides with the orthographic projection of a second sub-electrode on the first substrate.

4. The color film substrate according to claim 1, wherein: The first electrode includes a plurality of first sub-electrodes arranged in an array, and the second electrode covers the second substrate. A first adhesive layer is provided on a side of the second electrode facing the first substrate, and an orthographic projection of the first adhesive layer on the first substrate coincides with an orthographic projection of a gap between adjacent first sub-electrodes on the first substrate. or, The second electrode includes a plurality of second sub-electrodes arranged in an array and the first electrode covers the first substrate. A second adhesive layer is provided on the side of the first electrode facing the second substrate, and the orthographic projection of the second adhesive layer on the second substrate coincides with the orthographic projection of the gap between adjacent second sub-electrodes on the second substrate.

5. The color filter substrate according to claim 1, wherein: The first electrode and the second electrode are transparent electrodes respectively.

6. A display panel, characterized in that: It comprises a color filter substrate and an array substrate as described in any one of claims 1 to 5, which are arranged relatively to each other, and a liquid crystal layer arranged between the color filter substrate and the array substrate, the array substrate comprises a third substrate and a driving circuit layer arranged on the third substrate, the driving circuit layer comprises a plurality of pixel electrodes arranged in an array, and the orthographic projection of each of the first sub-electrode and / or the second sub-electrode on the third substrate covers the orthographic projection of a pixel electrode on the third substrate.

7. The display panel according to claim 6, wherein: The orthographic projection of each of the first sub-electrode and / or the second sub-electrode on the third substrate coincides with the orthographic projection of a pixel electrode on the third substrate.

8. A display panel, characterized in that: The invention comprises a first substrate and an array substrate arranged opposite to each other, and a hybrid liquid crystal layer arranged between a color filter substrate and the array substrate, wherein the hybrid liquid crystal layer comprises liquid crystal and cholesteric liquid crystal, the array substrate comprises a third substrate and a driving circuit layer arranged on the third substrate, the driving circuit layer comprises a plurality of pixel electrodes arranged in an array, a first electrode is provided on a side of the first substrate facing the third substrate, the first electrode comprises a plurality of first sub-electrodes arranged in an array, and at least N first sub-electrodes are configured to be applied with the same voltage; A surface of the first sub-electrode facing the cholesteric liquid crystal layer has a concavo-convex structure.

9. The display panel according to claim 8, wherein: The orthographic projection of each first sub-electrode on the third substrate covers the orthographic projection of one pixel electrode on the third substrate.

10. A method for driving a color filter substrate according to any one of claims 1 to 5, characterized in that: include: According to the design size of the pixel, the same voltage is applied to at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes, so that the cholesteric liquid crystal layer area corresponding to the positive projection of at least N adjacent first sub-electrodes and / or at least N adjacent second sub-electrodes is formed into a color resist unit whose color corresponds to the voltage, and the size of the cholesteric liquid crystal layer area matches the design size of the pixel.

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