CN104616598A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN104616598A CN104616598A CN201510103215.0A CN201510103215A CN104616598A CN 104616598 A CN104616598 A CN 104616598A CN 201510103215 A CN201510103215 A CN 201510103215A CN 104616598 A CN104616598 A CN 104616598A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
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- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel and a display device. The display panel comprises a polarizing sheet, a polarization detecting sheet and an array substrate arranged between the polarizing sheet and the polarization detecting sheet; the array substrate is divided into a plurality of pixel units; a transparent strain component and a transparent control component are arranged in each pixel unit; the control components can control strains to be generated inside the corresponding strain components; when the strains are generated in the strain components, linearly polarized light entering the array substrate by the polarizing sheet is converted into elliptically polarized light by the strain components generating the strains; a polarization state of the elliptically polarized light corresponds to the direction and the size of each corresponding strain, so that light outgoing by the polarization detecting sheet have different brightness. The display panel and the display device which are provided by the invention have simple structures.
Description
Technical field
The present invention relates to display technique field, be specifically related to a kind of display panel and display device.
Background technology
At present, display device on market can be divided into liquid crystal indicator (LiquidCrystal Display substantially, and organic light-emitting display device (Organic Light-EmittingDiode LCD), OLED), but all there is complex structure in these display device, the shortcoming of complex manufacturing technology.Such as, for LCD, its display panel comprises array base palte and to box substrate and liquid crystal between the two, once the moisture in the external world or impurity enter display panel inside, pollutes liquid crystal, will have influence on display effect; For OLED, in its each sub-pixel unit, be provided with luminescence unit, cause the complexity of its manufacture craft to strengthen.
Summary of the invention
The object of the present invention is to provide a kind of display panel and a kind of display device, to simplify the structure of display panel and display device.
To achieve these goals, the invention provides a kind of display panel, described display panel comprises polarizer slice, checking bias slice and the array base palte be arranged between described polarizer slice and described checking bias slice, described array base palte is divided into multiple pixel cell, transparent strain gauge element and transparent control element is provided with in each described pixel cell, described control element can control described strain gauge element inside and produce strain, when described strain gauge element inside produces stress, the strain gauge element of linearly polarized light through producing stress injecting described array base palte through described polarizer slice is converted to elliptically polarized light, the polarization state of described elliptically polarized light is corresponding with described stress direction and size, to make the light penetrated after described checking bias slice, there is different brightness.
Preferably, described array base palte comprises underlay substrate, described control element is included in the first electrostatic sheet and the second electrostatic sheet that described underlay substrate is oppositely arranged, described first electrostatic sheet and the second electrostatic sheet insulation gap, and be formed with space between described first electrostatic sheet and described second electrostatic sheet, described first electrostatic sheet can form the identical or contrary static charge of polarity respectively with on described second electrostatic sheet, and described strain gauge element comprises the birefringent material layer be arranged on described second electrostatic sheet.
Preferably, described second electrostatic sheet is towards described checking bias slice.
Preferably, the material making described second electrostatic sheet comprises silicon nitride.
Preferably, the surface towards the first electrostatic sheet of described second electrostatic sheet and/or the surface towards described checking bias slice are provided with transparent aluminum membranous layer.
Preferably, the first electrostatic sheet in multiple pixel cell forms as one structure, and the second electrostatic sheet in different pixel cells is independent mutually.
Preferably, described first electrostatic sheet is provided with insulation course, at least supported on both sides of described second electrostatic sheet on described insulation course, to make to form space between the middle part of described second electrostatic sheet and described insulation course.
Preferably, described array base palte also comprises and is arranged on multi-strip scanning signal wire on described underlay substrate and many data signal lines, described scan signal line and described data signal line are arranged on the different layers of insulation gap, described array base palte is divided into multiple pixel cell by described multi-strip scanning signal wire and many data signal lines, switching device is provided with in each pixel cell, the control end of described switching device is connected with scan signal line, the input end of described switching device is connected with described data signal line, the output terminal of described switching device is connected with the second corresponding electrostatic sheet, when the control end access start signal of described switching device, the input end of described switching device and output terminal conducting, described array base palte also comprises the public electrostatic providing end for providing signal to described first electrostatic sheet.
Preferably, described switching device comprises thin film transistor (TFT).
Correspondingly, the present invention also provides a kind of display device, comprise above-mentioned display panel provided by the invention, backlight and for providing the drive unit of control signal for described control element, control described strain gauge element inside to make control element according to described control signal and produce strain.
Preferably, described array base palte comprises underlay substrate, described control element is included in the first electrostatic sheet and the second electrostatic sheet that described underlay substrate is oppositely arranged, described first electrostatic sheet and the second electrostatic sheet insulation gap, and be formed with space between described first electrostatic sheet and described second electrostatic sheet, described first electrostatic sheet can form the identical or contrary static charge of polarity respectively with on described second electrostatic sheet, and described strain gauge element comprises the birefringent material layer be arranged on described second electrostatic sheet.
Preferably, the first electrostatic sheet in multiple pixel cell forms as one structure, and the second electrostatic sheet in different pixel cells is independent mutually, described array base palte also comprises and is arranged on multi-strip scanning signal wire on described underlay substrate and many data signal lines, described scan signal line and described data signal line are arranged on the different layers of insulation gap, described array base palte is divided into multiple pixel cell by described multi-strip scanning signal wire and many data signal lines, switching device is provided with in each pixel cell, the control end of described switching device is connected with scan signal line, the input end of described switching device is connected with described data signal line, the output terminal of described switching device is connected with the second corresponding electrostatic sheet, when the control end access start signal of described switching device, the input end of described switching device and output terminal conducting, described array base palte also comprises the public electrostatic providing end for providing signal to described first electrostatic sheet,
Described drive unit comprises:
Scan drive circuit, for providing sweep signal successively to every bar scan signal line;
Data drive circuit, for providing data-signal to every bar data signal line;
Common driver circuit, for providing public electrostatic signal to described public electrostatic providing end.
Preferably, described backlight comprises the light emitting source for launching white light.
Preferably, described backlight comprises the N kind light emitting source for launching N kind color light, N be greater than 1 integer, within each display cycle of described display panel, described N kind light emitting source emission of light in turn.
Preferably, the color of the light emitted line of described light emitting source comprises redness, green and blue.
Preferably, the display frequency of display panel is 60Hz.
Preferably, described display device also comprises backlight source driving circuit, and for providing drive singal for backlight, to make described N kind light emitting source emission of light in turn within each display cycle of described display panel, the frequency of backlight luminescence is 60*N.
In the present invention, display panel only need arrange an array base palte comprising strain gauge element and control element and two polaroids can regulate the amount of light of each pixel cell, when the light of backlight is after polarizer slice, natural light becomes the polarization direction linearly polarized light consistent with the printing opacity direction of polarizer slice, this linearly polarized light is after producing the strain gauge element of stress, can form the elliptically polarized light be made up of two orthogonal polarized lights of direction of vibration, and the polarization state of described elliptically polarized light is relevant with the stress of strain gauge element.When the stress of different pixel cell internal strain elements is different, amount of light is also different, thus demonstrates image.Therefore, display panel of the present invention is compared with display panels of the prior art and organic electroluminescence display panel, without the need to arranging liquid crystal or making baroque luminescence unit, thus make display panel and display device have simple structure, reduce process complexity.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of array base palte in embodiments of the present invention;
Fig. 2 is the vertical view of array base palte in embodiments of the present invention;
Fig. 3 is the structural representation of display device in embodiments of the present invention.
Wherein, Reference numeral is: 11, polarizer slice; 12, array base palte; 121, strain gauge element; 122, control element; 122a, the first electrostatic sheet; 122b, the second electrostatic sheet; 123, underlay substrate; 124, insulation course; 125, scan signal line; 126, data signal line; 128, switching device; 13, checking bias slice; 20, backlight.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
As one aspect of the present invention, a kind of display panel is provided, as shown in Figure 3, described display panel comprises polarizer slice 11, checking bias slice 13 and the array base palte 12 be arranged between polarizer slice 11 and checking bias slice 13, array base palte 12 is divided into multiple pixel cell, transparent strain gauge element 121 and transparent control element 122 is provided with in each described pixel cell, control element 122 can produce strain in controlled strain element 121 inside, thus generation stress, when strain gauge element 121 inside produces stress, the linearly polarized light injecting array base palte 12 through polarizer slice 11 is converted to elliptically polarized light through the strain gauge element 121 producing stress, the polarization state of described elliptically polarized light is corresponding with the direction of described stress and size, to make the light of injection after checking bias slice 13, there is different brightness.
Should be understood that, polarizer slice 11 and checking bias slice 13 refer to two orthogonal polaroids in printing opacity direction.When the light of backlight 20 is after polarizer slice 11, natural light becomes the polarization direction linearly polarized light consistent with the printing opacity direction of polarizer slice 11, this linearly polarized light is after producing the strain gauge element 121 of stress, can form the elliptically polarized light be made up of two orthogonal polarized lights of direction of vibration, and the polarization state of described elliptically polarized light is relevant with the stress of strain gauge element 121.Namely, when the stress of the strain gauge element 121 in different pixels unit is different, the polarization state of elliptically polarized light is different, thus make the component of described elliptically polarized light in checking bias slice 13 printing opacity direction different, therefore after the analyzing effect of checking bias slice 13, the amount of light of different elliptically polarized light is different, to make different pixel cells show different brightness, and then demonstrates image.It should be noted that, when strain gauge element 121 inside does not produce stress, the linearly polarized light incided on strain gauge element 121 can not change, therefore, the direction of vibration of the linearly polarized light of injection is vertical with the printing opacity direction of checking bias slice, at this moment, pixel cell does not have light therethrough, is namely shown as dark-state.
Can find out, display panel of the present invention only need arrange two polaroids and an array base palte 12 comprising strain gauge element 121 and control element 122 just can regulate display panel amount of light, there is better simply structure, without the need to introducing liquid crystal, thus preventing the pollution of liquid crystal; Also without the need to forming the structure of light emitting diode, process complexity is reduced.
The present invention is not construed as limiting the structure of strain gauge element 121 and control element 122 and form, as a kind of embodiment of the present invention, as shown in Figure 1, array base palte 12 comprises underlay substrate 123, control element 122 is included in the first electrostatic sheet 122a and the second electrostatic sheet 122b that underlay substrate is oppositely arranged, first electrostatic sheet 122a and the second electrostatic sheet 122b insulation gap, and be formed with space between the first electrostatic sheet 122a and the second electrostatic sheet 122b, first electrostatic sheet 122a can form the identical or contrary static charge of polarity respectively with on the second electrostatic sheet 122b, strain gauge element 121 comprises the birefringent material layer be arranged on the second electrostatic sheet 122b.
When forming the identical or contrary static charge of polarity on the first electrostatic sheet 122a and the second electrostatic sheet 122b respectively, electrostatic force is produced between first electrostatic sheet 122a and the second electrostatic sheet 122b, thus make the second electrostatic sheet 122b that deformation occur, birefringent material layer also corresponding generation deformation simultaneously on the second electrostatic sheet 122b, produce stress, the linearly polarized light at this moment injecting birefringent material is formed as the elliptically polarized light be made up of two bunch polarized lights.When electrostatic force between the first electrostatic sheet 122a and the second electrostatic sheet 122b is different, the stress intensity that second electrostatic sheet 122b and birefringent material layer produce is also different, thus make the polarization state of the elliptically polarized light of above-mentioned formation also different, therefore, after the analyzing effect of second checking bias slice 13, the transit dose of light is different, and then produces different brightness.Compare with the display mode of display panels, because the response speed of liquid crystal to electric signal is slower, image can be made to show certain delay, and directly regulate in the method for the stress of the second electrostatic sheet by electrostatic force in the present invention, once strain gauge element generation deformation, the polarization state of elliptically polarized light will change, thus changes amount of light, therefore, understand sensitiveer to the response of drive singal when the present invention shows image.
Particularly, the second electrostatic sheet 122b is towards checking bias slice 13, that is, the first electrostatic sheet 122a is near polarizer slice 11, and the second electrostatic sheet 122b is near checking bias slice 13.
The first electrostatic sheet 122a in the present invention and the second electrostatic sheet 122b makes by transparent material.As shown in Figure 1, first electrostatic sheet 122a can be set directly on underlay substrate, electrostatic force between first electrostatic sheet 122a and the second electrostatic sheet 122b can make the second electrostatic sheet 122b that deformation occurs, in order to improve tension force and the durability of the second electrostatic sheet 122b, preferably, the material making the second electrostatic sheet 122b comprises silicon nitride.
Further, the surface towards the first electrostatic sheet and/or the surface towards checking bias slice 13 of the second electrostatic sheet 122b can be provided with transparent aluminum membranous layer, thus improve charged ability on the second electrostatic sheet 122b.
The material making birefringent material layer can comprise epoxy resin, making birefringent material layer the linearly polarized light of incidence can be converted to elliptically polarized light when producing stress, when not producing stress, not regulating incident ray.
In order to simplify the manufacture craft of array base palte further, preferably, the first electrostatic sheet 122a in multiple pixel cell forms as one structure, and the second electrostatic sheet 122b in different pixels unit is independent mutually.
Particularly, as shown in Figure 1, the first electrostatic sheet 122a is provided with insulation course 124, at least supported on both sides of the second electrostatic sheet 122b is on insulation course 124, to make to form space between the middle part of the second electrostatic sheet 122b and insulation course 124, thus be that the deformation of the second electrostatic sheet 122b leaves space.In manufacturing process, insulation course 124 can be formed on the second electrostatic sheet 122b, first photoresist layer can be formed in each pixel cell before forming the second electrostatic sheet 122b, then on photoresist layer, form the second electrostatic sheet, and make the supported on both sides of the second electrostatic sheet 122b on insulation course 124, finally photoresist developing residual between the second electrostatic sheet 122b and the first electrostatic sheet 122a is fallen, thus form space between the second electrostatic sheet 122b and the first electrostatic sheet 122a.
Further, as shown in Figure 2, array base palte 12 also comprises and is arranged on multi-strip scanning signal wire 125 on underlay substrate 123 and many data signal lines 126, scan signal line 125 and data signal line 126 are arranged on the different layers of insulation gap, array base palte 12 is divided into multiple pixel cell by multi-strip scanning signal wire 125 and many data signal lines 126, switching device 128 is provided with in each pixel cell, the control end of switching device 128 is connected with scan signal line 125, the input end of switching device 128 is connected with data signal line 126, the output terminal of switching device 128 is connected with the second corresponding electrostatic sheet 122b, when the control end access start signal of switching device 128, the input end of switching device 128 and output terminal conducting, array base palte 12 also comprises the public electrostatic providing end (not shown) for providing signal to the first electrostatic sheet 122a.
When carrying out image display, the first electrostatic sheet 122a that can be become one structure by described public electrostatic providing end synform applies stable voltage, then scanning voltage is applied successively to multi-strip scanning signal wire 125, switching device 128 line by line in on-pixel unit, the input end of switching device 128 and output terminal conducting, simultaneously, pixel voltage is applied to each second electrostatic sheet 122b in the one-row pixels unit be unlocked by every bar data signal line 126, to make all to produce electrostatic force between each second electrostatic sheet 122b of this row and the first electrostatic sheet 122a, thus the birefringent material layer on each second electrostatic sheet 122b in this row pixel cell is strained, change amount of light, and then make multirow pixel cell show image line by line.
Particularly, switching device 128 comprises thin film transistor (TFT), and the control end of switching device 128 is the grid of thin film transistor (TFT), and the input end of switching device 128 is the source electrode of thin film transistor (TFT), and the output terminal of switching device 128 is the drain electrode of thin film transistor (TFT).When switching device 128 is N-type TFT, described start signal is high level signal, and when switching device 128 is P-type TFT, described start signal is low level signal.
As another aspect of the present invention, by a kind of display device, comprise above-mentioned display panel provided by the present invention, backlight 20 (as shown in Figure 3) and for providing the drive unit of control signal for described control element, control described strain gauge element inside to make control element according to described control signal and produce strain.
As noted before, array base palte 12 comprises underlay substrate 123, control element 122 is included in the first electrostatic sheet 122a and the second electrostatic sheet 122b that underlay substrate is oppositely arranged, first electrostatic sheet 122a and the second electrostatic sheet 122b insulation gap, and be formed with space between the first electrostatic sheet 122a and the second electrostatic sheet 122b, first electrostatic sheet 122a can form the identical or contrary static charge of polarity respectively with on the second electrostatic sheet 122b, and strain gauge element 121 comprises the birefringent material layer be arranged on the second electrostatic sheet 122b.
The first electrostatic sheet 122a in multiple pixel cell forms as one structure, and the second electrostatic sheet 122b in different pixel cells is independent mutually, array base palte 12 also comprises and is arranged on multi-strip scanning signal wire 125 on underlay substrate 123 and many data signal lines 126, described scan signal line and described data signal line are arranged on the different layers of insulation gap, array base palte is divided into multiple pixel cell by multi-strip scanning signal wire 125 and many data signal lines 126, switching device 128 is provided with in each pixel cell, the control end of switching device 128 is connected with scan signal line 125, the input end of switching device 128 is connected with data signal line 126, switching device 128 output terminal is connected with the second corresponding electrostatic sheet 122b, when the control end access start signal of switching device 128, the input end of switching device 128 and output terminal conducting, array base palte also comprises the public electrostatic providing end for providing signal to the first electrostatic sheet 122a,
Described drive unit comprises:
Scan drive circuit, for providing sweep signal successively to every bar scan signal line 125;
Data drive circuit, for providing data-signal to every bar data signal line 126;
Common driver circuit, for providing public electrostatic signal to described public electrostatic providing end.
Such as, scan drive circuit can comprise the shift register cell of multiple cascade, and each shift register cell is connected with a scan signal line 125, and multiple shift register cell exports start signal successively.In the process driving display panel display, common driver circuit can keep stable output, and the quantity of electric charge on the first electrostatic sheet 122a is remained unchanged.When N level shift register cell output start signal makes switching device 128 conducting of N-th row pixel cell, data drive circuit provides pixel voltage signal to every bar data signal line 126, this pixel voltage signal inputs to the second electrostatic sheet 122b of N-th row pixel cell by switching device 128, to make to produce electrostatic force between the second electrostatic sheet 122b and the first electrostatic sheet 122a of N-th row, thus the birefringent material layer on the second electrostatic sheet 122b of N-th row and the second electrostatic sheet 122b is strained, produce stress.When described electrostatic force is different, the stress that birefringent material layer produces is different, and the polarization state of the elliptically polarized light of outgoing is different, thus makes the amount of light through checking bias slice 13 different.
Be understandable that, the amount of light of pixel cell is relevant with the stress of strain gauge element, that is, the amount of light of pixel cell and the electrostatic force between the first electrostatic sheet 122a and the second electrostatic sheet 122b.Therefore, when described display panel is driven, stable magnitude of voltage can be applied to the first electrostatic sheet 122a, only the voltage of the second electrostatic sheet 122b be regulated.Further, all corresponding pixel voltage of each GTG, therefore, when pixel cell switches between different grey decision-making, only correspondingly need switch the output voltage of data drive circuit, thus the structure of reduced data driving circuit and common driver circuit.
Display device in the present invention can show black white image, also can color display.As a kind of embodiment of the present invention, backlight 2 comprises the light emitting source for launching white light, and light emitting source launches the light of white towards display panel, when the amount of light of pixel cell is different, namely can show the different black white image of GTG.
As another kind of embodiment of the present invention, backlight comprises the N kind light emitting source for launching N kind color light, within each display cycle of described display panel, and described N kind light emitting source emission of light in turn.For the image that each frame will show, the synthesis of multiple primary colors subfield (field) can be decomposed into, when showing this two field picture, display panel can show often kind of primary colours subfield successively, and due to the eye storage characteristic of human eye, when different primary colours subfields switches fast, this few width primary colours subfield can be synthesized by human brain, thus is formed as coloured image.
It should be noted that, described " display cycle " refers to and image to be shown is shown the complete time.When display panel adopts the above described mode shown line by line to carry out image display, the first trip pixel cell of display panel carries out in the process of image successively to footline pixel cell, a kind of light emitting source in backlight launches a kind of light of color, thus show a kind of primary colours subfield, when multiple primary colors subfield all shows complete, represent a display cycle.
Particularly, the color that described light emitting source is launched comprises redness, green and blue.By the three primary colours subfield that the picture breakdown that every frame is to be shown is red, green, blue three look, respectively the red, green, blue three primary colours subfield of image is shown.
Compare in the mode being divided into by each pixel cell red, green, blue three sub-pixels to carry out colored display with in prior art, the present invention does not need to arrange color film, thus provides cost savings; Further, without the need to pixel cell is divided into less sub-pixel unit, thus be more conducive to improving resolution.
Particularly, the display frequency of display panel is 60Hz, i.e. display 60 two field picture per minute, and the display cycle is 1/60 minute.Due to the visual persistence phenomenon of human eye, when image conversion is very fast, level and smooth continuous print visual effect will be reached.
Further, described display device can also comprise backlight source driving circuit, and for providing drive singal for backlight, to make described N kind light emitting source emission of light in turn within each display cycle of described display panel, the frequency of backlight luminescence is 60*N.For the backlight of red, green, blue, can first within the time period of first 1/180 minute, it is luminous that backlight source driving circuit controls emitting red light source, the mode of lining by line scan is adopted to show the image of red color sub-field, then within the time period of middle 1/180 minute, it is luminous that backlight source driving circuit controls green emitting source, the mode of lining by line scan is adopted to show the image of green color sub-field, it is luminous that backlight source driving circuit controls blue-light-emitting source, within the time period of latter 1/180 minute, finally show the image of blue sub-fields in the mode of lining by line scan.
It is more than the description to display panel provided by the invention and display device, can find out, display panel of the present invention only need arrange an array base palte comprising strain gauge element and control element and two polaroids can regulate the amount of light of each pixel cell, when the light of backlight is after polarizer slice, natural light becomes the polarization direction linearly polarized light consistent with the printing opacity direction of polarizer slice, this linearly polarized light is after producing the strain gauge element of stress, the elliptically polarized light be made up of two orthogonal polarized lights of direction of vibration can be formed, and the polarization state of described elliptically polarized light is relevant with the stress of strain gauge element.When the stress of different pixel cell internal strain elements is different, amount of light is also different, thus demonstrates image.Therefore, display panel of the present invention is compared with display panels of the prior art and organic electroluminescence display panel, without the need to arranging liquid crystal or making baroque luminescence unit, thus make display panel and display device have simple structure, reduce process complexity.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (17)
1. a display panel, it is characterized in that, described display panel comprises polarizer slice, checking bias slice and the array base palte be arranged between described polarizer slice and described checking bias slice, described array base palte is divided into multiple pixel cell, transparent strain gauge element and transparent control element is provided with in each described pixel cell, described control element can control described strain gauge element inside and produce strain, when described strain gauge element inside produces stress, the strain gauge element of linearly polarized light through producing stress injecting described array base palte through described polarizer slice is converted to elliptically polarized light, the polarization state of described elliptically polarized light is corresponding with described stress direction and size, to make the light penetrated after described checking bias slice, there is different brightness.
2. display panel according to claim 1, it is characterized in that, described array base palte comprises underlay substrate, described control element is included in the first electrostatic sheet and the second electrostatic sheet that described underlay substrate is oppositely arranged, described first electrostatic sheet and the second electrostatic sheet insulation gap, and be formed with space between described first electrostatic sheet and described second electrostatic sheet, described first electrostatic sheet can form the identical or contrary static charge of polarity respectively with on described second electrostatic sheet, and described strain gauge element comprises the birefringent material layer be arranged on described second electrostatic sheet.
3. display panel according to claim 2, is characterized in that, described second electrostatic sheet is towards described checking bias slice.
4. display panel according to claim 3, is characterized in that, the material making described second electrostatic sheet comprises silicon nitride.
5. display panel according to claim 3, is characterized in that, the surface towards the first electrostatic sheet of described second electrostatic sheet and/or the surface towards described checking bias slice are provided with transparent aluminum membranous layer.
6. display panel according to claim 3, is characterized in that, the first electrostatic sheet in multiple pixel cell forms as one structure, and the second electrostatic sheet in different pixel cells is independent mutually.
7. display panel according to claim 6, it is characterized in that, described first electrostatic sheet is provided with insulation course, at least supported on both sides of described second electrostatic sheet on described insulation course, to make to form space between the middle part of described second electrostatic sheet and described insulation course.
8. display panel according to claim 6, it is characterized in that, described array base palte also comprises and is arranged on multi-strip scanning signal wire on described underlay substrate and many data signal lines, described scan signal line and described data signal line are arranged on the different layers of insulation gap, described array base palte is divided into multiple pixel cell by described multi-strip scanning signal wire and many data signal lines, switching device is provided with in each pixel cell, the control end of described switching device is connected with scan signal line, the input end of described switching device is connected with described data signal line, the output terminal of described switching device is connected with the second corresponding electrostatic sheet, when the control end access start signal of described switching device, the input end of described switching device and output terminal conducting, described array base palte also comprises the public electrostatic providing end for providing signal to described first electrostatic sheet.
9. display panel according to claim 8, is characterized in that, described switching device comprises thin film transistor (TFT).
10. a display device, it is characterized in that, comprise display panel according to claim 1, backlight and for providing the drive unit of control signal for described control element, control described strain gauge element inside to make control element according to described control signal and produce strain.
11. display device according to claim 10, it is characterized in that, described array base palte comprises underlay substrate, described control element is included in the first electrostatic sheet and the second electrostatic sheet that described underlay substrate is oppositely arranged, described first electrostatic sheet and the second electrostatic sheet insulation gap, and be formed with space between described first electrostatic sheet and described second electrostatic sheet, described first electrostatic sheet can form the identical or contrary static charge of polarity respectively with on described second electrostatic sheet, and described strain gauge element comprises the birefringent material layer be arranged on described second electrostatic sheet.
12. display device according to claim 11, is characterized in that, the first electrostatic sheet in multiple pixel cell forms as one structure, and the second electrostatic sheet in different pixel cells is independent mutually, described array base palte also comprises and is arranged on multi-strip scanning signal wire on described underlay substrate and many data signal lines, described scan signal line and described data signal line are arranged on the different layers of insulation gap, described array base palte is divided into multiple pixel cell by described multi-strip scanning signal wire and many data signal lines, switching device is provided with in each pixel cell, the control end of described switching device is connected with scan signal line, the input end of described switching device is connected with described data signal line, the output terminal of described switching device is connected with the second corresponding electrostatic sheet, when the control end access start signal of described switching device, the input end of described switching device and output terminal conducting, described array base palte also comprises the public electrostatic providing end for providing signal to described first electrostatic sheet,
Described drive unit comprises:
Scan drive circuit, for providing sweep signal successively to every bar scan signal line;
Data drive circuit, for providing data-signal to every bar data signal line;
Common driver circuit, for providing public electrostatic signal to described public electrostatic providing end.
13. display device according to claim 10, is characterized in that, described backlight comprises the light emitting source for launching white light.
14. display device according to claim 10, it is characterized in that, described backlight comprises the N kind light emitting source for launching N kind color light, N be greater than 1 integer, within each display cycle of described display panel, described N kind light emitting source emission of light in turn.
15. display device according to claim 14, is characterized in that, the color of the light emitted line of described light emitting source comprises redness, green and blue.
16. display device according to claim 14, is characterized in that, the display frequency of display panel is 60Hz.
17. display device according to claim 16, it is characterized in that, described display device also comprises backlight source driving circuit, for providing drive singal for backlight, to make described N kind light emitting source emission of light in turn within each display cycle of described display panel, the frequency of backlight luminescence is 60*N.
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| CN104616598B (en) | 2017-06-30 |
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