CN104570425A - Display panel and production method thereof as well as display device - Google Patents
Display panel and production method thereof as well as display device Download PDFInfo
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- CN104570425A CN104570425A CN201510062461.6A CN201510062461A CN104570425A CN 104570425 A CN104570425 A CN 104570425A CN 201510062461 A CN201510062461 A CN 201510062461A CN 104570425 A CN104570425 A CN 104570425A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention provides a display panel and a production method thereof as well as a display device. The display panel comprises a first polarizer, a second polarizer and a liquid crystal box, wherein the liquid crystal box consists of a first substrate, a second substrate and a liquid crystal layer, each of the first substrate and the second substrate comprises a plurality of color sub-pixel units and a plurality of transparent sub-pixel units; the color sub-pixel units of the first substrate and the transparent sub-pixel units of the second substrate are oppositely arranged, and the color sub-pixel units of the second substrate and the transparent sub-pixel units of the first substrate are oppositely arranged; each color sub-pixel unit comprises a color filtering layer and a light reflection layer positioned on one side, opposite to the liquid crystal layer, of the color filtering layer, and the light reflection surface of the light reflection layer faces towards the liquid crystal layer, each color sub-pixel unit and the opposite transparent sub-pixel unit form a sub-pixel structure, each sub-pixel structure further consists of a first electrode and a second electrode which are used for generating electric fields. Compared with two-sided display in the prior art, the display panel is thinner.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of display panel and preparation method thereof, display device.
Background technology
Along with the development of display technique, increasing product is applied in daily life.In some occasions, as display cabinet, market, station platform etc., double-sided display is convenient to people and is obtained required information.But, current double-side display device, general is all that two display panels form subsides, or the combination of LCD and OLED, or other display techniques are as E-paper, the combined method of E-ink etc., therefore, the volume of whole device is large, and thickness is thicker, and heavier-weight, and do not meet the short and small frivolous trend of electronic product; And some design is made via different process respectively, and its complex manufacturing process is time-consuming, and cost is higher.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention how to realize a kind of frivolous double-side display device.
(2) technical scheme
For solving the problems of the technologies described above, technical scheme of the present invention provides a kind of display panel, the liquid crystal cell comprising the first polaroid, the second polaroid and be arranged between described first polaroid and described second polaroid, described liquid crystal cell comprises the first substrate that is oppositely arranged and second substrate, liquid crystal layer between described first substrate and described second substrate, and described first substrate and described second substrate include multiple color sub-pixel elements and multiple clear subpixel unit;
The color sub-pixel elements of described first substrate and the clear subpixel unit of described second substrate are just to setting, and the color sub-pixel elements of described second substrate and the clear subpixel unit of described first substrate are just to setting;
Each color sub-pixel elements comprises chromatic filter layer and is positioned at the reflection layer of chromatic filter layer liquid crystal layer side dorsad, and the light reflection surface of described reflection layer is towards described liquid crystal layer, each color sub-pixel elements and its just right clear subpixel unit form a sub-pixel structure, and each sub-pixel structure also comprises the first electrode for generation of electric field and the second electrode.
Further, in described first electrode and described second electrode, one of them is arranged in clear subpixel unit, another is arranged in color sub-pixel elements, described first electrode and described second electrode are for generation of vertical electric field, and each sub-pixel structure also comprises the phase separation layer being positioned at reflection layer light reflection surface side.
Further, electrode in color sub-pixel elements is arranged on described in and described reflection layer is same structure.
Further, described first electrode and described second electrode are all located in described color sub-pixel elements or clear subpixel unit, described first electrode and described second electrode are for generation of horizontal component of electric field, described first electrode is slit-shaped electrode, and described second electrode is the plane-shape electrode being positioned at the first electrode described liquid crystal layer side dorsad.
Further, described first electrode and described second electrode are all located in described color sub-pixel elements, and described chromatic filter layer is between described first electrode and described second electrode.
Further, described second electrode and described reflection layer are same structure.
Further, described reflection layer is also provided with anti-reflection layer in described liquid crystal layer side dorsad.
Further, in each substrate, described color sub-pixel elements and described clear subpixel unit interval are arranged.
Further, described color sub-pixel elements comprises red sub-pixel unit, green sub-pixels unit and blue subpixels unit, on each substrate, described red sub-pixel unit, described green sub-pixels unit and described blue subpixels unit are cycle arrangement.
Further, for each clear subpixel unit, the color of the color sub-pixel elements that its color sub-pixel elements adjacent on same substrate is just right on another substrate from this clear subpixel unit is different.
For solving the problems of the technologies described above, present invention also offers a kind of display device, comprising above-mentioned arbitrary display panel.
For solving the problems of the technologies described above, present invention also offers a kind of method for making of display panel, the liquid crystal cell that described display panel comprises the first polaroid, the second polaroid and is arranged between described first polaroid and described second polaroid, wherein, forms described liquid crystal cell and comprises:
Make first substrate and second substrate, described first substrate and described second substrate include multiple color sub-pixel elements and multiple clear subpixel unit, each color sub-pixel elements comprises chromatic filter layer and is positioned at the reflection layer of described chromatic filter layer side, each color sub-pixel elements clear subpixel unit corresponding in another substrate with it is a sub-pixel structure, and each sub-pixel structure also comprises the first electrode for generation of electric field and the second electrode;
Described first substrate and described second substrate form oriented layer respectively, and after liquid crystal drip-injection technique by described first substrate and described second substrate to box, and described to box after, each color sub-pixel elements of described first substrate clear subpixel unit corresponding in described second substrate with it is just to setting, each color sub-pixel elements of described second substrate clear subpixel unit corresponding in described first substrate with it is just to setting, in each color sub-pixel elements, reflection layer is wherein positioned at chromatic filter layer described liquid crystal layer side dorsad wherein, and the light reflection surface of described reflection layer is towards described liquid crystal layer.
(3) beneficial effect
The present invention by all arranging multiple color sub-pixel elements and multiple clear subpixel unit in two substrates of display panel, and make the color sub-pixel elements in two substrates and the setting facing each other of clear subpixel unit, user can see in the side of arbitrary substrate another substrate enamel sub-pixel unit reflection light, thus the double-sided display of this display panel can be realized, the double-sided display mode of employing two panel attachment compared to existing technology, display panel in the present invention is at thickness, weight and volume method all can significantly reduce, and because the display panel in the present invention is based on reflective display, do not need to arrange backlight in the panel, not only can reduce thickness further, weight and volume, also reduce power consumption.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of display panel that embodiment of the present invention provides;
Fig. 2 and Fig. 3 is the displaying principle schematic diagram of the display panel shown in Fig. 1;
Fig. 4 is the schematic diagram of the another kind of display panel that embodiment of the present invention provides;
Fig. 5 is the schematic diagram of another display panel that embodiment of the present invention provides;
Fig. 6 is the schematic diagram of another display panel that embodiment of the present invention provides.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment of the present invention provides a kind of display panel, the liquid crystal cell that this display panel comprises the first polaroid, the second polaroid and is arranged between described first polaroid and described second polaroid, described liquid crystal cell comprises the first substrate that is oppositely arranged and second substrate, liquid crystal layer between described first substrate and described second substrate, and described first substrate and described second substrate include multiple color sub-pixel elements and multiple clear subpixel unit;
The color sub-pixel elements of described first substrate and the clear subpixel unit of described second substrate are just to setting, and the color sub-pixel elements of described second substrate and the clear subpixel unit of described first substrate are just to setting;
Each color sub-pixel elements comprises chromatic filter layer and is positioned at the reflection layer of chromatic filter layer liquid crystal layer side dorsad, and the light reflection surface of described reflection layer is towards described liquid crystal layer, each color sub-pixel elements and its just right clear subpixel unit form a sub-pixel structure, and each sub-pixel structure also comprises the first electrode for generation of electric field and the second electrode.
Wherein, for each sub-pixel structure, the electric field that the first electrode wherein and the second electrode produce can be vertical electric field, also can be horizontal component of electric field.
First electrode and the second electrode are produced to the mode of vertical electric field, can make in the first electrode and the second electrode that one of them is arranged in clear subpixel unit, another is arranged in color sub-pixel elements, and in each sub-pixel structure, is positioned at reflection layer light reflection surface side arranges phase separation layer.Particularly, see Fig. 1, Fig. 1 is the schematic diagram of a kind of display panel that embodiment of the present invention provides, this display panel comprises the first polaroid 400, second polaroid 500 and the liquid crystal cell between the first polaroid 400 and the second polaroid 500, this liquid crystal cell comprises first substrate 100, second substrate 200 and the liquid crystal layer between first substrate 100 and second substrate 200 300, the both sides of liquid crystal layer 300 are provided with oriented layer (not shown), wherein, first substrate 100 comprises multiple color sub-pixel elements 110 and multiple clear subpixel unit 120, second substrate 200 comprises multiple color sub-pixel elements 210 and multiple clear subpixel unit 220,
Wherein, the color sub-pixel elements 110 of first substrate 100 and the clear subpixel unit 220 of described second substrate 200 are one by one just to setting, and the color sub-pixel elements 210 of second substrate 200 and the clear subpixel unit 120 of described first substrate 100 are one by one just to setting;
Each color sub-pixel elements comprises chromatic filter layer 3 and is positioned at the reflection layer 2 of chromatic filter layer 3 liquid crystal layer 300 side dorsad, and the light reflection surface of described reflection layer 2 is towards described liquid crystal layer 300, each color sub-pixel elements and its just right clear subpixel unit form a sub-pixel structure, each sub-pixel structure also comprises the first electrode 6 and the second electrode 4 for generation of vertical electric field, such as, for the sub-pixel structure of the rightmost side in Fig. 1, first electrode 6 is arranged in clear subpixel unit 220, second electrode 4 is arranged in color sub-pixel elements 110, first electrode 4 and the second electrode 6 are for generation of vertical electric field, each sub-pixel structure also comprises the phase separation layer 7 being positioned at reflection layer 2 light reflection surface side, such as, for each sub-pixel structure, phase separation layer 7 can be formed in the side (i.e. the incident side of sub-pixel structure) of clear subpixel unit liquid crystal layer dorsad, it specifically can be made up of half slide (HW) and 1/4th slides (QW).
Particularly, for the sub-pixel structure of the rightmost side in Fig. 1, for the user watched from second substrate 200 side, when there is voltage between the first electrode in this sub-pixel structure and the second electrode, see Fig. 2, the natural light injected from the external world forms the linearly polarized light in x direction through the second polaroid 500 (when the light transmission shaft of the second polaroid is x direction), the linearly polarized light in the x direction formed forms right-circularly polarized light through phase separation layer (HW+QW) 7, the right-circularly polarized light formed is incident to liquid crystal layer 300, owing to there is voltage between the first electrode in this sub-pixel structure and the second electrode, make the liquid crystal layer of corresponding position to the phase place through wherein light without impact, therefore, the light of permeate crystal layer is still right-circularly polarized light, this right-circularly polarized light exposes on reflection layer 2, left circularly polarized light is formed after the light reflection surface reflection on reflection layer 2, left circularly polarized light after reflection is still left circularly polarized light after liquid crystal layer 300, the linearly polarized light in y direction is formed again after phase separation layer (HW+QW) 7, the linearly polarized light in this y direction can not make this sub-pixel structure be dark-state in second substrate side through the second polaroid 500,
When there is not voltage between the first electrode in this sub-pixel structure and the second electrode, as shown in Figure 3, the natural light injected from the external world forms the linearly polarized light in x direction through the second polaroid 500 (when the light transmission shaft of the second polaroid is x direction), the linearly polarized light in the x direction formed forms right-circularly polarized light through phase separation layer (HW+QW) 7, the right-circularly polarized light formed is incident to liquid crystal layer 300, owing to there is not voltage between the first electrode in this sub-pixel structure and the second electrode, the liquid crystal layer of its corresponding position possesses birefringence effect, the linearly polarized light in y direction is formed after this right-circularly polarized light permeate crystal layer, the linearly polarized light in this y direction is still the linearly polarized light in y direction after the reflection of reflection layer, then after liquid crystal layer, be converted to right-circularly polarized light again, this right-circularly polarized light is again converted to the linearly polarized light in x direction after phase separation layer (HW+QW) 7, thus this sub-pixel structure can be made to be on state of in second substrate side through the second polaroid 500,
For the side of this sub-pixel structure at first substrate 100, because reflection layer wherein can only towards liquid crystal layer side reflected light, and can not reflected light (or poor reflectivity) at opposite side, therefore, user can't see the light of the color sub-pixel elements on it substantially in first substrate 100 side, preferably, in color sub-pixel elements, also dorsad anti-reflection layer 1 can be set in liquid crystal layer side at reflection layer, the external world can be irradiated the light absorption on it by this anti-reflection layer, reduce the interference caused due to the reflection of ambient light in first substrate 100 side.
For clear subpixel structure in first substrate side, color sub-pixel structure is at the sub-pixel structure of second substrate side, and its displaying principle is same as described above, repeats no more herein.
Because the display panel in present embodiment is double-sided display, for each sub-pixel structure, it only plays display effect in side, in order to reduce manufacture craft, reduce cost of manufacture, can between the first polaroid 400 and first substrate 100, directly one deck phase separation layer 7 is made respectively between second polaroid 500 and second substrate 200, thus a phase separation layer is made in each clear subpixel unit and each color sub-pixel elements, thus make each sub-pixel structure all form one deck phase separation layer in the both sides of reflection layer, and for being positioned at the phase separation layer of reflection layer light reflection surface position dorsad, due to the opaqueness of reflection layer, therefore the phase separation layer of this position can not impact the display of this sub-pixel structure, also will it not etch away, thus can manufacture craft be reduced.
In addition, for the display panel in present embodiment, phase separation layer can be positioned at the side of clear subpixel unit liquid crystal layer dorsad as shown in Figure 1, also other positions of reflection layer light reflection surface side can be positioned at, such as be set directly on the light reflection surface of reflection layer, its displaying principle is substantially identical with above-mentioned, repeats no more herein.
Preferably, in the above-described embodiment, in order to reduce manufacture craft further, reduce cost of manufacture, being arranged on electrode in color sub-pixel elements with reflection layer can be same structure, such as, the higher metal material of reflectivity (as aluminium) can be adopted to make layer of metal film, and anti-reflection layer is set in the one side of this metallic film liquid crystal layer dorsad, make metallic film namely can as one of them in the first electrode and the second electrode, simultaneously also as reflection layer.
The display panel that embodiment of the present invention provides, by all arranging multiple color sub-pixel elements and multiple clear subpixel unit in two substrates of display panel, and make the color sub-pixel elements in two substrates and the setting facing each other of clear subpixel unit, user can see in the side of arbitrary substrate another substrate enamel sub-pixel unit reflection light, thus the double-sided display of this display panel can be realized, the double-sided display mode of employing two panel attachment compared to existing technology, display panel in the present invention is at thickness, weight and volume method all can significantly reduce, and because the display panel in the present invention is based on reflective display, do not need to arrange backlight in the panel, not only can reduce thickness further, weight and volume, also reduce power consumption.
First electrode and the second electrode are produced to the mode of vertical electric field, the first electrode and the second electrode can be made all to be located in color sub-pixel elements or clear subpixel unit, this first electrode and described second electrode is made to produce horizontal component of electric field, for the display panel of this employing vertical electric field, the first all electrodes and the second electrode can all be formed on the first substrate, also can all be formed on second substrate, also can a part be formed on the first substrate, a part is formed on second substrate, only need ensure to be provided with in one of each color sub-pixel elements and its just right clear subpixel unit the first electrode and the second electrode that produce horizontal component of electric field.
Preferably, the first all electrodes and the second electrode are all formed on the first substrate or are all formed on second substrate, thus only can make electrode on one substrate, and on another substrate, again need not make electrode, such as, see Fig. 4, Fig. 4 is the schematic diagram of the another kind of display panel that embodiment of the present invention provides, this display panel comprises the first polaroid 400, second polaroid 500 and the liquid crystal cell between the first polaroid 400 and the second polaroid 500, this liquid crystal cell comprises first substrate 100, second substrate 200 and the liquid crystal layer between first substrate 100 and second substrate 200 300, the both sides of liquid crystal layer 300 are provided with oriented layer (not shown), wherein, first substrate 100 comprises multiple color sub-pixel elements 110 and multiple clear subpixel unit 120, second substrate 200 comprises multiple color sub-pixel elements 210 and multiple clear subpixel unit 220,
Wherein, the color sub-pixel elements 110 of first substrate 100 and the clear subpixel unit 220 of described second substrate 200 are one by one just to setting, the color sub-pixel elements 210 of second substrate 200 and the clear subpixel unit 120 of described first substrate 100 are one by one just to setting, and each color sub-pixel elements and its just right clear subpixel unit form a sub-pixel structure;
For first substrate 100, color sub-pixel elements 110 on it and clear subpixel unit 120 are all formed with the first electrode 6 and the second electrode 4, wherein, first electrode 6 is slit-shaped electrode, second electrode 4 is for being positioned at the plane-shape electrode of the first electrode 6 liquid crystal layer 300 side dorsad, insulation course 5 is provided with between first electrode 6 and the second electrode 4, the horizontal component of electric field of parallel substrate can be produced by this first electrode 6 and the second electrode 4, in addition, each color sub-pixel elements 110 also comprises the chromatic filter layer 3 being positioned at the second electrode 6 liquid crystal layer 300 side dorsad, and be positioned at the reflection layer 2 of chromatic filter layer 3 liquid crystal layer 300 side dorsad, and the light reflection surface of reflection layer 2 is towards liquid crystal layer,
For second substrate 200, the color sub-pixel elements 120 on it only includes chromatic filter layer 3 and is positioned at the reflection layer 2 of chromatic filter layer 3 liquid crystal layer 300 side dorsad;
Particularly, for the sub-pixel structure of the rightmost side in Fig. 4, for the user watched from second substrate 200 side, the natural light injected from the external world forms the linearly polarized light in x direction through the second polaroid (when the light transmission shaft of the second polaroid is x direction), then be incident to liquid crystal layer 300, when there is not voltage between the first electrode in this sub-pixel structure and the second electrode, the liquid crystal layer 300 of this position does not change the state through linearly polarized light wherein, therefore, it is still the linearly polarized light in x direction after the linearly polarized light permeate crystal layer 300 in this x direction, the light of corresponding color is formed after chromatic filter layer by color sub-pixel elements in this sub-pixel structure, at the reflection layer 2 again on it, linearly polarized light of the X-direction of this corresponding color is reflexed to liquid crystal layer 300, it is still the linearly polarized light of corresponding color X-direction after this liquid crystal layer 300, thus can through the first polaroid outgoing, realize this sub-pixel structure to show in the on state of of second substrate 200 side corresponding color, voltage is applied between the first electrode wherein and the second electrode, horizontal component of electric field is produced between first electrode and the second electrode, liquid crystal molecule in the liquid crystal layer of corresponding position rotates under the effect of this electric field, its windup-degree meets birefringence condition, the linearly polarized light be incident in this liquid crystal layer is made to become circularly polarized light, such as, linearly polarized light through the x direction that the first polaroid produces forms left circularly polarized light after permeate crystal layer 300, and expose in the color sub-pixel elements of this sub-pixel structure, expose on reflection layer after the light that the chromatic filter layer in this color sub-pixel elements forms corresponding color, through this reflection layer, the left circularly polarized light of incidence is reflected to form right-circularly polarized light, the linearly polarized light in y direction is formed after this right-circularly polarized light permeate crystal layer 300, and the linearly polarized light in this y direction is not by the first polaroid 400, thus realize the dark-state display of this clear subpixel unit 110,
For this sub-pixel structure in first substrate 100 side, because reflection layer wherein can only at liquid crystal layer side reflected light, and can not reflected light (or poor reflectivity) at opposite side, therefore, user can't see the light of the color sub-pixel elements on it substantially in first substrate 100 side, preferably, in color sub-pixel elements, also dorsad anti-reflection layer 1 can be set in liquid crystal layer side at reflection layer, the external world can be irradiated the light absorption on it by this anti-reflection layer, reduce the interference that reflected ambient light causes.
For clear subpixel structure in first substrate side, color sub-pixel structure is at the sub-pixel structure of second substrate side, and its displaying principle is same as described above, repeats no more herein.
See Fig. 5, Fig. 5 is another display panel that embodiment of the present invention provides, the structure of the display panel shown in this display panel with Fig. 4 and displaying principle are substantially identical, difference is, the first all electrodes 6 and the second electrode 4 are all produced in color sub-pixel elements, and chromatic filter layer 3 is between the first electrode 6 and described second electrode 4, thus make can to adopt between the first electrode 6 and the second electrode 4 chromatic filter layer 3 in color sub-pixel elements as insulation course, compare the mode in Fig. 4, insulation course 5 can be saved, thus can cost of manufacture be reduced.
See Fig. 6, Fig. 6 is another display panel that embodiment of the present invention provides, the structure of the display panel shown in this display panel with Fig. 5 and displaying principle are substantially identical, difference is, second electrode 4 is same structure with reflection layer 1, namely structure 4 not only as the second electrode of this color sub-pixel elements also as reflection layer, thus cost of manufacture can be reduced further, particularly, first electrode 6 can adopt transparent conductive material to make, second electrode 4 can adopt the conductive material (as metals such as aluminium) that reflectivity is higher to make, and anti-reflection layer 1 is set in the side of the second electrode 4 chromatic filter layer 3 dorsad, thus can prevent ambient light from producing interference due to reflection in liquid crystal layer side dorsad in this sub-pixel unit.
In addition, in the present invention, for each sub-pixel structure, TFT element device can be set wherein, control to apply electric field between the first electrode whether in this sub-pixel structure and the second electrode by TFT components and parts, namely by this TFT element, control this TFT element and control the corresponding conversion of clear subpixel unit between on state of and dark-state, such as, TFT can be connected with the second electrode, different data-signals is applied by these TFT components and parts, realize on state of in various degree, the display of dark-state, and then user can be realized can watch different or identical picture in the both sides of display panel.
Preferably, in order to realize uniform display in the both sides of this display panel, in each substrate, described color sub-pixel elements and described clear subpixel unit interval are arranged;
Wherein, above-mentioned color sub-pixel elements comprises red sub-pixel unit, green sub-pixels unit and blue subpixels unit, and on each substrate, described red sub-pixel unit, described green sub-pixels unit and described blue subpixels unit are cycle arrangement;
Preferably, in order to avoid the reflected light between two substrates causes colour mixture, improve display quality, for the color sub-pixel elements on any substrate, they are different from the color of the chromatic filter layer that the color sub-pixel elements that it is connected on another substrate comprises, namely for each clear subpixel unit, the color of the color sub-pixel elements that its color sub-pixel elements adjacent on same substrate is just right on another substrate from this clear subpixel unit is different (color of the color sub-pixel elements namely in adjacent two sub-pixel structures is different), can ensure like this can not by color sub-pixel elements reflective layer reflects adjacent on second substrate by the light of the reflective layer reflects of the color sub-pixel elements on first substrate, cause light leak or colour mixture.
In addition, embodiment of the present invention additionally provides a kind of display device, comprises above-mentioned arbitrary display panel.The display device that embodiment of the present invention provides can be any product or parts with Presentation Function such as note-book computer display screen, liquid crystal display, LCD TV, digital album (digital photo frame), mobile phone, panel computer.
In addition, embodiment of the present invention additionally provides a kind of method for making of display panel, the liquid crystal cell that described display panel comprises the first polaroid, the second polaroid and is arranged between described first polaroid and described second polaroid, wherein, forms described liquid crystal cell and comprises:
Make first substrate and second substrate, described first substrate and described second substrate include multiple color sub-pixel elements and multiple clear subpixel unit, each color sub-pixel elements comprises chromatic filter layer and is positioned at the reflection layer of described chromatic filter layer side, each color sub-pixel elements clear subpixel unit corresponding in another substrate with it is a sub-pixel structure, and each sub-pixel structure also comprises the first electrode for generation of electric field and the second electrode;
Described first substrate and described second substrate form oriented layer respectively, and after liquid crystal drip-injection technique by described first substrate and described second substrate to box, and described to box after, each color sub-pixel elements of described first substrate clear subpixel unit corresponding in described second substrate with it is just to setting, each color sub-pixel elements of described second substrate clear subpixel unit corresponding in described first substrate with it is just to setting, in each color sub-pixel elements, reflection layer is wherein positioned at chromatic filter layer described liquid crystal layer side dorsad wherein, and the light reflection surface of described reflection layer is towards described liquid crystal layer.
Wherein, for each sub-pixel structure, the electric field that the first electrode wherein and the second electrode produce can be vertical electric field, also can be horizontal component of electric field.According to the mode of vertical electric field, each sub-pixel structure also comprises the phase separation layer being positioned at reflection layer light reflection surface side.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (12)
1. a display panel, it is characterized in that, the liquid crystal cell comprising the first polaroid, the second polaroid and be arranged between described first polaroid and described second polaroid, described liquid crystal cell comprises the first substrate that is oppositely arranged and second substrate, liquid crystal layer between described first substrate and described second substrate, and described first substrate and described second substrate include multiple color sub-pixel elements and multiple clear subpixel unit;
The color sub-pixel elements of described first substrate and the clear subpixel unit of described second substrate are just to setting, and the color sub-pixel elements of described second substrate and the clear subpixel unit of described first substrate are just to setting;
Each color sub-pixel elements comprises chromatic filter layer and is positioned at the reflection layer of chromatic filter layer liquid crystal layer side dorsad, and the light reflection surface of described reflection layer is towards described liquid crystal layer, each color sub-pixel elements and its just right clear subpixel unit form a sub-pixel structure, and each sub-pixel structure also comprises the first electrode for generation of electric field and the second electrode.
2. display panel according to claim 1, it is characterized in that, in described first electrode and described second electrode, one of them is arranged in clear subpixel unit, another is arranged in color sub-pixel elements, described first electrode and described second electrode are for generation of vertical electric field, and each sub-pixel structure also comprises the phase separation layer being positioned at reflection layer light reflection surface side.
3. display panel according to claim 2, is characterized in that, described in be arranged on electrode in color sub-pixel elements and described reflection layer is same structure.
4. display panel according to claim 1, it is characterized in that, described first electrode and described second electrode are all located in described color sub-pixel elements or clear subpixel unit, described first electrode and described second electrode are for generation of horizontal component of electric field, described first electrode is slit-shaped electrode, and described second electrode is the plane-shape electrode being positioned at the first electrode described liquid crystal layer side dorsad.
5. display panel according to claim 4, is characterized in that, described first electrode and described second electrode are all located in described color sub-pixel elements, and described chromatic filter layer is between described first electrode and described second electrode.
6. display panel according to claim 5, is characterized in that, described second electrode and described reflection layer are same structure.
7., according to the arbitrary described display panel of claim 1-6, it is characterized in that, described reflection layer dorsad described liquid crystal layer side is also provided with anti-reflection layer.
8., according to the arbitrary described display panel of claim 1-6, it is characterized in that, in each substrate, described color sub-pixel elements and described clear subpixel unit interval are arranged.
9. arbitrary described display panel according to Claim 8, it is characterized in that, described color sub-pixel elements comprises red sub-pixel unit, green sub-pixels unit and blue subpixels unit, on each substrate, described red sub-pixel unit, described green sub-pixels unit and described blue subpixels unit are cycle arrangement.
10. arbitrary described display panel according to Claim 8, it is characterized in that, for each clear subpixel unit, the color of the color sub-pixel elements that its color sub-pixel elements adjacent on same substrate is just right on another substrate from this clear subpixel unit is different.
11. 1 kinds of display device, is characterized in that, comprise as arbitrary in claim 1-10 as described in display panel.
The method for making of 12. 1 kinds of display panels, the liquid crystal cell that described display panel comprises the first polaroid, the second polaroid and is arranged between described first polaroid and described second polaroid, is characterized in that, forms described liquid crystal cell and comprises:
Make first substrate and second substrate, described first substrate and described second substrate include multiple color sub-pixel elements and multiple clear subpixel unit, each color sub-pixel elements comprises chromatic filter layer and is positioned at the reflection layer of described chromatic filter layer side, each color sub-pixel elements clear subpixel unit corresponding in another substrate with it is a sub-pixel structure, and each sub-pixel structure also comprises the first electrode for generation of electric field and the second electrode;
Described first substrate and described second substrate form oriented layer respectively, and after liquid crystal drip-injection technique by described first substrate and described second substrate to box, and described to box after, each color sub-pixel elements of described first substrate clear subpixel unit corresponding in described second substrate with it is just to setting, each color sub-pixel elements of described second substrate clear subpixel unit corresponding in described first substrate with it is just to setting, in each color sub-pixel elements, reflection layer is wherein positioned at chromatic filter layer described liquid crystal layer side dorsad wherein, and the light reflection surface of described reflection layer is towards described liquid crystal layer.
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