CN102981300B - Display panels and preparation method thereof, display device - Google Patents
Display panels and preparation method thereof, display device Download PDFInfo
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- CN102981300B CN102981300B CN201210477366.9A CN201210477366A CN102981300B CN 102981300 B CN102981300 B CN 102981300B CN 201210477366 A CN201210477366 A CN 201210477366A CN 102981300 B CN102981300 B CN 102981300B
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Abstract
The embodiment of the invention discloses a kind of display panels and preparation method thereof, display device, relate to field of liquid crystal display, this display panels can ensure that transmission area is consistent with the phase-delay quantity of echo area on the basis of single box thick structure, reduces the difficulty of the manufacture craft of transreflective liquid crystal display panel.This display panels, described display panels is single box thick structure, comprise the first substrate and second substrate that are oppositely arranged, layer of liquid crystal molecule is provided with between described first substrate and described second substrate, described first substrate comprises several subpixel area that the grid line that intersected by transverse and longitudinal and data line mark off, each described subpixel area comprises transmission area and echo area, liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is horizontal by the first tilt angle, liquid crystal molecule in the layer of liquid crystal molecule of described echo area is horizontal by the second tilt angle, described first tilt angle is less than described second tilt angle.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of display panels and preparation method thereof, display device.
Background technology
Semi-transparent semi-reflecting liquid crystal display has the advantages such as low in energy consumption, surround lighting strong adaptability, is flat panel display relatively more active at present, is widely used in the mobile display device such as mobile phone, palm PC (PersonalDigitalAssistant is called for short PDA).Semi-transparent semi-reflecting liquid crystal display can adopt transmission mode and reflective-mode to show image individually or simultaneously, so semi-transparent semi-reflecting liquid crystal display can use under any surround lighting.The basic structure of semi-transparent semi-reflecting liquid crystal display is that each red, green, blue sub-pixel unit is divided into transmission area and echo area two parts, and make the liquid crystal of transmission area work in transmission mode, the liquid crystal of echo area works in reflective-mode.Its principle of work is: when environment is darker, open backlight, light therethrough transmission area, devices function is in transmission mode, and under a bright ambient environment, extraneous intensity of illumination is larger than the intensity of illumination of backlight, and semi-transmission semi-reflection LCD works in reflective-mode, utilizes reflection to show image from the light in the external world.
Inventor is realizing finding in process of the present invention, because the light of transmission area outgoing is only through a layer of liquid crystal molecule, and the light of echo area outgoing have passed through twice layer of liquid crystal molecule, when the thickness of the layer of liquid crystal molecule of echo area with arrangement with transmission area consistent time, the light path of echo area is the twice of transmission area light path, because transmission area and echo area exist optical path difference, do not mate with the light phase retardation of echo area outgoing through transmission area, thus have a strong impact on display effect.So; consistent with the phase-delay quantity of echo area for ensureing transmission area; existing transflective liquid crystal display adopts the structure of dual-box thick usually; by changing light, to realize transmission area by the light path of transmission area or echo area consistent with the phase-delay quantity of echo area; but the structure of dual-box thick can improve the difficulty of the manufacture craft of transflective liquid crystal display usually; and then improve the cost of manufacture of transflective liquid crystal display, reduce yields.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of display panels and preparation method thereof, display device, this display panels can ensure that transmission area is consistent with the phase-delay quantity of echo area on the basis of single box thick structure, reduces the difficulty of the manufacture craft of transreflective liquid crystal display panel.
For solving the problems of the technologies described above, embodiments of the invention adopt following technical scheme:
The first aspect of the embodiment of the present invention, provide a kind of display panels, described display panels is single box thick structure, comprise the first substrate and second substrate that are oppositely arranged, layer of liquid crystal molecule is provided with between described first substrate and described second substrate, described first substrate comprises several subpixel area that the grid line that intersected by transverse and longitudinal and data line mark off, each described subpixel area comprises transmission area and echo area, liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is horizontal by the first tilt angle, liquid crystal molecule in the layer of liquid crystal molecule of described echo area is horizontal by the second tilt angle, described first tilt angle is less than described second tilt angle.
Liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is parallel to each other, and the liquid crystal molecule in the layer of liquid crystal molecule of described echo area is parallel to each other.
Described first substrate comprises the first polaroid, the first transparency carrier, passivation layer, pixel electrode layer and the first oriented layer from bottom to top successively, in described echo area, is provided with reflection horizon in described passivation layer.
The surface in described reflection horizon is concaveconvex structure.
Described pixel electrode layer comprises the first pixel electrode being positioned at transmission area and the second pixel electrode being positioned at echo area.
Described first tilt angle is 5 ° to 35 °, and described second tilt angle is 20 ° to 50 °, and the thickness of described layer of liquid crystal molecule is 2 microns to 8 microns.
In the technical scheme of the embodiment of the present invention, liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is horizontal by the first tilt angle, liquid crystal molecule in the layer of liquid crystal molecule of described echo area is horizontal by the second tilt angle, described first tilt angle is less than described second tilt angle, makes the phase-delay quantity through the transmitted light of transmission area outgoing flux matched with the phase delay through the reflected light of echo area outgoing.Further, because the display panels adopted in the present invention is the structure that single box is thick, thus enormously simplify the difficulty of transreflective liquid crystal display panel manufacture craft.
The second aspect of the embodiment of the present invention, provides a kind of method for making of display panels, comprising:
Hide the first oriented layer and second oriented layer of the echo area of described display panels respectively;
The first oriented layer and second oriented layer of the transmission area of described display panels is irradiated respectively with the ultraviolet light horizontal by the first angle;
Hide the first oriented layer and second oriented layer of the transmission area of described display panels respectively;
The first oriented layer and second oriented layer of the echo area of described display panels is irradiated respectively with the ultraviolet light horizontal by the second angle.
The material of described first oriented layer and described second oriented layer is photosensitive polyimide.
In the technical scheme of the embodiment of the present invention, provide a kind of method for making of display panels, the method for making of this kind of display panels is less demanding to manufacture craft, simple and easy to do, improve the making yields of display panels, reduce the cost of manufacture of display panels.
The third aspect of the embodiment of the present invention, provides a kind of display device, comprises above-mentioned display panels.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation one of display panels in the embodiment of the present invention;
Fig. 2 is the structural representation two of display panels in the embodiment of the present invention;
Fig. 3 is the process flow diagram of the method for making of display panels in the embodiment of the present invention.
Description of reference numerals:
1-first substrate; 11-the first polaroid; 12-the first transparency carrier;
13-passivation layer; 14-pixel electrode layer; 15-the first oriented layer;
16-reflection horizon; 2-second substrate; 3-liquid crystal layer;
31-liquid crystal molecule.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The embodiment of the present invention provides a kind of display panels, described display panels is single box thick structure, as shown in Figure 1, comprise the first substrate 1 and second substrate 2 that are oppositely arranged, layer of liquid crystal molecule 3 is provided with between described first substrate 1 and described second substrate 2, described first substrate 1 comprises several subpixel area that the grid line that intersected by transverse and longitudinal and data line mark off, and each described subpixel area comprises transmission area and echo area.
Wherein, liquid crystal molecule 31 in the layer of liquid crystal molecule 3 of described transmission area is horizontal by the first tilt angle α, liquid crystal molecule 31 in the layer of liquid crystal molecule 3 of described echo area is horizontal by the second tilt angle β, and described first tilt angle α is less than described second tilt angle β.
Because the liquid crystal molecule 31 of transmission area is horizontal by the first tilt angle α, and the liquid crystal molecule 31 of echo area is horizontal by the second tilt angle β, and the first tilt angle α is less than the second tilt angle β, this means that liquid crystal molecule 31 horizontal component in the horizontal plane of transmission area is greater than liquid crystal molecule 31 horizontal component in the horizontal plane of echo area, when being then each passed through the layer of liquid crystal molecule 3 of the transmission area of same thickness and echo area with Ray Of Light, the horizontal phase retardation △ n that light produces in the layer of liquid crystal molecule 3 of transmission area
1be greater than the horizontal phase retardation △ n produced in the layer of liquid crystal molecule 3 of echo area
2.
Further, because the display panels in the present invention is single box thick structure, namely the thickness of the layer of liquid crystal molecule 3 of transmission area is identical with the thickness of the layer of liquid crystal molecule 3 of echo area, and due to the light of transmission area outgoing only need through a layer of liquid crystal molecule 3, the light of echo area outgoing need through twice layer of liquid crystal molecule 3, i.e. d echo area=2*d transmission area, then by the optimization of the second tilt angle β to the first tilt angle α of the liquid crystal molecule 31 in the layer of liquid crystal molecule 3 of transmission area or the liquid crystal molecule 31 of echo area, △ n can be made
1=2* △ n
2, to sum up, transmission area (△ n*d)=echo area (△ n*d) can be obtained, thus achieve the coupling of the phase-delay quantity of transmission area and echo area, and finally reach semi-transparent semi-reflecting display effect.
In the technical scheme of the present embodiment, liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is horizontal by the first tilt angle, liquid crystal molecule in the layer of liquid crystal molecule of described echo area is horizontal by the second tilt angle, described first tilt angle is less than described second tilt angle, makes the phase-delay quantity through the transmitted light of transmission area outgoing flux matched with the phase delay through the reflected light of echo area outgoing.Further, because the display panels adopted in the present invention is the structure that single box is thick, thus enormously simplify the difficulty of transreflective liquid crystal display panel manufacture craft.
Embodiment two
The embodiment of the present invention provides a kind of display panels, on the basis of embodiment one, for the consideration of the difficulty of reduction manufacture craft, liquid crystal molecule 31 in the layer of liquid crystal molecule 3 of described transmission area can be parallel to each other, and the liquid crystal molecule 31 in the layer of liquid crystal molecule 3 of described echo area can be parallel to each other.
Further, described first substrate 1 comprises the first polaroid 11, first transparency carrier 12, passivation layer 13, pixel electrode layer 14 and the first oriented layer 15 from bottom to top successively, in described echo area, is provided with reflection horizon 16 in described passivation layer 13.
Wherein, described reflection horizon 16 for by the light reflection in echo area to extraneous.
Because described reflection horizon 16 is arranged in described passivation layer 13, and the thickness being positioned at the passivation layer 13 of transmission area is greater than the thickness of the passivation layer 13 of echo area, to make the surface of this passivation layer 13 equal.So, by the passivation layer of thickness setting inequality, the planarization on first substrate 1 surface can be ensured.
Further, the surface in described reflection horizon 16 is concaveconvex structure.The reflector layer 16 of relief structured surface can make extraneous light generation diffuse reflection, by light reflection to all directions.Reflect compared to the one direction of plane mirror, the reflector layer 16 of relief structured surface can utilize light source more fully, and make the coverage rate of light source wider, light is also more even.Preferably, reflector layer 16 is made of aluminum.
Further, described pixel electrode layer 14 comprises the first pixel electrode being positioned at transmission area and the second pixel electrode being positioned at echo area.
Because the first tilt angle α of the liquid crystal molecule 31 of transmission area is different from the second tilt angle β of the liquid crystal molecule 31 of echo area, and when pixel electrode layer 14 is energized, need the perpendicular straight arranged form arrangement of the liquid crystal molecule 31 of transmission area and echo area changed into as shown in Figure 2, driving voltage and the liquid crystal molecule of echo area that then the liquid crystal molecule 31 of transmission area needs need the driving voltage that loads different, so the first pixel electrode of usual employing mutually insulated and the second pixel electrode drive the liquid crystal molecule 31 of transmission area and the liquid crystal molecule 31 of echo area respectively.First pixel electrode is powered by the first data line, and the second pixel electrode is powered by the second data line.So, namely effectively can control by the driving voltage changing the first pixel electrode and the second pixel the phase-delay quantity that transmission area and echo area produce, thus considerably increase the dirigibility that display panels controls.
In addition, described first pixel electrode also can be connected even one-body molded with described second pixel electrode, for same data line is powered, as long as ensure that driving voltage that this pixel electrode layer provides is greater than the maximal value of the driving voltage of transmission area or echo area needs.
Further, verify through series of experiments, the range of choices of described first tilt angle α is 5 ° to 35 °, the range of choices of described second tilt angle β is 20 ° to 50 °, but must ensure that the value of the first tilt angle α is less than the value of the second tilt angle β, and the thickness of described layer of liquid crystal molecule 3 is 2 microns to 8 microns.By the optimization of the second tilt angle β to the first tilt angle α of the liquid crystal molecule 31 in the layer of liquid crystal molecule 3 of transmission area or the liquid crystal molecule 31 of echo area, finally can determine respective value when the first tilt angle α and the second tilt angle β meets transmission area (△ n*d)=echo area (△ n*d) this formula, such as, first tilt angle α is preferably 12.5 °, now the second tilt angle β is preferably 32.5 °, and the thickness of described layer of liquid crystal molecule 3 is 4.4 microns.
The embodiment of the present invention additionally provides a kind of display device comprising above-mentioned display panels.
Embodiment three
The embodiment of the present invention provides a kind of method for making of display panels, and as shown in Figure 3, the method comprises:
Step S101, the first oriented layer hiding the echo area of described display panels respectively and the second oriented layer;
Step S102, transmission area first oriented layer of irradiating described display panels with the ultraviolet light horizontal by the first angle respectively and the second oriented layer;
Step S103, the first oriented layer hiding the transmission area of described display panels respectively and the second oriented layer;
Step S104, echo area first oriented layer of irradiating described display panels with the ultraviolet light horizontal by the second angle respectively and the second oriented layer.
Thus, the first tilt angle of the liquid crystal molecule of the transmission area of obtained display panels is the first angle, and the second tilt angle of the liquid crystal molecule of echo area is the second angle.
Wherein, described step 101, step 102 and step 103, step 104 can be exchanged.
In order to adopt the method to obtain semitransparent semi-inverse liquid crystal display panel, the material of described first oriented layer and described second oriented layer should be photosensitive polyimide.Under the irradiation of ultraviolet light, selective light degraded or photo-crosslinking can be there is, thus cause surface anisotropy, cause the orientations of liquid crystal molecule in photosensitive polyimide.
In the technical scheme of the present embodiment, provide a kind of method for making of display panels, the method for making of this kind of display panels is less demanding to manufacture craft, simple and easy to do, improve the making yields of display panels, reduce the cost of manufacture of display panels.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (7)
1. a display panels, described display panels is single box thick structure, comprise the first substrate and second substrate that are oppositely arranged, layer of liquid crystal molecule is provided with between described first substrate and described second substrate, described first substrate comprises several subpixel area that the grid line that intersected by transverse and longitudinal and data line mark off, each described subpixel area comprises transmission area and echo area, it is characterized in that
Liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is horizontal by the first tilt angle, and the liquid crystal molecule in the layer of liquid crystal molecule of described echo area is horizontal by the second tilt angle, and described first tilt angle is less than described second tilt angle; Liquid crystal molecule in the layer of liquid crystal molecule of described transmission area is parallel to each other, and the liquid crystal molecule in the layer of liquid crystal molecule of described echo area is parallel to each other;
Described display panels also comprises pixel electrode layer, and described pixel electrode layer comprises the first pixel electrode being positioned at transmission area and the second pixel electrode being positioned at echo area, and described first pixel electrode and described second pixel electrode mutually insulated.
2. display panels according to claim 1, it is characterized in that, described first substrate comprises the first polaroid, the first transparency carrier, passivation layer, pixel electrode layer and the first oriented layer from bottom to top successively, in described echo area, is provided with reflection horizon in described passivation layer.
3. display panels according to claim 2, is characterized in that, the surface in described reflection horizon is concaveconvex structure.
4. the display panels according to any one of claim 1-3, is characterized in that,
Described first tilt angle is 5 ° to 35 °, and described second tilt angle is 20 ° to 50 °, and the thickness of described layer of liquid crystal molecule is 2 microns to 8 microns.
5. a method for making for display panels, is characterized in that, comprising:
Hide the first oriented layer and second oriented layer of the echo area of described display panels respectively;
The first oriented layer and second oriented layer of the transmission area of described display panels is irradiated respectively with the ultraviolet light horizontal by the first angle;
Hide the first oriented layer and second oriented layer of the transmission area of described display panels respectively;
The first oriented layer and second oriented layer of the echo area of described display panels is irradiated respectively with the ultraviolet light horizontal by the second angle;
Described method for making also comprises the step making pixel electrode layer, and described pixel electrode layer comprises the first pixel electrode being positioned at transmission area and the second pixel electrode being positioned at echo area, and described first pixel electrode and described second pixel electrode mutually insulated.
6. method according to claim 5, is characterized in that,
The material of described first oriented layer and described second oriented layer is photosensitive polyimide.
7. a display device, is characterized in that, comprises the display panels as described in any one of claim 1-4.
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| CN201210477366.9A CN102981300B (en) | 2012-11-21 | 2012-11-21 | Display panels and preparation method thereof, display device |
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| CN201210477366.9A CN102981300B (en) | 2012-11-21 | 2012-11-21 | Display panels and preparation method thereof, display device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103293770B (en) | 2013-05-31 | 2015-12-23 | 京东方科技集团股份有限公司 | Display base plate and manufacture method and display panels |
| CN103792721B (en) * | 2014-01-22 | 2016-06-29 | 京东方科技集团股份有限公司 | A kind of semitransparent semi-inverse liquid crystal display panel and preparation method thereof, display device |
| CN104503143B (en) * | 2014-12-17 | 2017-09-26 | 深圳市华星光电技术有限公司 | A kind of transflective liquid crystal display and its manufacture method |
| CN106773334B (en) * | 2016-12-28 | 2020-02-07 | 深圳市华星光电技术有限公司 | Method for preparing display panel and prepared display panel |
| CN114236915B (en) * | 2021-12-30 | 2024-01-26 | Tcl华星光电技术有限公司 | Liquid crystal alignment method of display panel |
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| CN1392964A (en) * | 2000-09-27 | 2003-01-22 | 松下电器产业株式会社 | Transreflective liquid crystal display |
| TW200411292A (en) * | 2002-12-17 | 2004-07-01 | Ind Tech Res Inst | Transflective display with different pre-inclination architectures and its manufacturing method |
| CN102087443A (en) * | 2011-03-23 | 2011-06-08 | 四川大学 | Single cell-gap transflective liquid crystal display (LCD) with matched transmissive and reflective electro-optical characteristics |
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| US20040075791A1 (en) * | 2002-10-16 | 2004-04-22 | Hong-Da Liu | Wide view angle ultra minimal transflective-type vertically aligned liquid crystal display |
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|---|---|---|---|---|
| CN1392964A (en) * | 2000-09-27 | 2003-01-22 | 松下电器产业株式会社 | Transreflective liquid crystal display |
| TW200411292A (en) * | 2002-12-17 | 2004-07-01 | Ind Tech Res Inst | Transflective display with different pre-inclination architectures and its manufacturing method |
| CN102087443A (en) * | 2011-03-23 | 2011-06-08 | 四川大学 | Single cell-gap transflective liquid crystal display (LCD) with matched transmissive and reflective electro-optical characteristics |
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