CN104297981A - Display device and working method thereof - Google Patents
Display device and working method thereof Download PDFInfo
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- CN104297981A CN104297981A CN201410602801.5A CN201410602801A CN104297981A CN 104297981 A CN104297981 A CN 104297981A CN 201410602801 A CN201410602801 A CN 201410602801A CN 104297981 A CN104297981 A CN 104297981A
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- display device
- display
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- source
- liquid crystal
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000013307 optical fiber Substances 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 6
- 230000005142 aphototropism Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 18
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- G02F1/1336—Illuminating devices
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to the technical field of display, and discloses a display device and a working method of the display device. The display device comprises a display panel and a backlight module located on the light inlet side of the display panel. The display panel comprises an array substrate, a color film substrate and a liquid crystal layer located between the array substrate and the color film substrate. The liquid crystal layer is made of anti-ultraviolet liquid crystal materials. The backlight module comprises a display light source and an ultraviolet light source. In the display device, the response time of liquid crystal molecules is short, and the response speed of the display panel is high.
Description
Technical field
The present invention relates to display technique field, particularly a kind of display device and method of work thereof.
Background technology
Along with improving constantly of liquid crystal display device quality, liquid crystal display has been widely used in the product scopes such as mobile phone, flat board, notebook, TV.For tv product, by adopting technological means such as rotating the very low liquid crystal of viscosity, overdrive, the display response time of most of tv product has dropped to below 8ms, and some products even reach 1ms.For mobile product or flat panel products, its application direction determines the power consumption of its display device must be low, this just requires that its liquid crystal display must have high permeability, and the response time of the high liquid crystal display of transmitance is general all longer, therefore, the liquid crystal display response time of current mobile product is also in the level of 25ms.
Summary of the invention
The invention provides a kind of display device and method of work thereof, wherein, in this display device, the response speed of display panel is very fast.
For achieving the above object, the invention provides following technical scheme:
A kind of display device, comprise display panel and the backlight module being positioned at described display panel incident side, described display panel comprises array base palte, color membrane substrates and the liquid crystal layer between described array base palte and color membrane substrates, described liquid crystal layer is prepared from by uvioresistant liquid crystal material, and described backlight module comprises display light source and ultraviolet source.
In above-mentioned display device, when display device works, the pixel cell in display panel is opened line by line, and display light source is always in running order, and ultraviolet source is only opened at special time.When applying gray scale voltage to the pixel electrode in one-row pixels unit in display panel, the liquid crystal molecule in the liquid crystal layer that in this row pixel cell, each pixel cell is corresponding starts to rotate under the driving of electric field, and display panel shows corresponding GTG; While applying gray scale voltage, ultraviolet source in backlight module starts, ultraviolet light uniform irradiation liquid crystal layer, because liquid crystal material can absorb UV energy, liquid crystal molecule vibration ability after absorbing energy in liquid crystal layer strengthens, thus the mobility of liquid crystal molecule strengthens, and the mobility of liquid crystal molecule strengthens the deflection can accelerating liquid crystal molecule, thus raising response speed, reduce the response time.After applying gray scale voltage process terminates, ultraviolet light prolonged exposure is until liquid crystal molecule completes deflection.
Therefore, in above-mentioned display device, the response speed of display panel is very fast.
Preferably, be side entrance back module, comprise:
Be positioned at the light guide plate that described array base palte deviates from described liquid crystal layer side, the described light guide plate side relative with described display light source is incidence surface, and the described light guide plate side relative with described ultraviolet source is incidence surface.
Preferably, described display light source and described ultraviolet source are positioned at the same side of described light guide plate.
Preferably, described display light source is positioned at the side of described light guide plate, and described ultraviolet source is positioned at the side that described light guide plate deviates from display light source.
Preferably, described backlight module is down straight aphototropism mode set.
Preferably, described ultraviolet source comprises and the ultraviolet light emission unit one to one of the multirow pixel cell in described display panel pixel unit.
Preferably, described ultraviolet source comprises:
With the multirow pixel cell optical fiber one to one in the pixel cell of described display panel; In the one-row pixels unit of each optical fiber and its correspondence, described optical fiber is provided with and each pixel cell light-emitting window one to one in described one-row pixels unit, and described in every a pair, light-emitting window and pixel cell are oppositely arranged;
Described optical fiber and ultraviolet light emission unit one_to_one corresponding; In every a pair mutually corresponding optical fiber and ultraviolet light emission unit, one end of described optical fiber is connected with the light outlets of described ultraviolet light emission unit.
Preferably, display device also comprises and being connected with described ultraviolet source signal, to control the controller of described ultraviolet source automatic switch.
Preferably, described display light source is white light source.
Preferably, described ultraviolet source is the cold light source of single wavelength.
Preferably, the wavelength of described ultraviolet source is 190 ~ 280nm.
The present invention also provides a kind of method of work of the display device as described in above-mentioned arbitrary technical scheme, comprising:
When display device is started working, open display light source;
When picture element signal enters the one-row pixels unit of display panel, ultraviolet source is opened, and the ultraviolet light of ultraviolet source is irradiated this row pixel cell.
Accompanying drawing explanation
A kind of display device structure schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The signal intensity time diagram of the display device that Fig. 2 provides for the embodiment of the present invention;
The method of work process flow diagram of the display device that Fig. 3 provides for the embodiment of the present invention.
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 only 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.
Please refer to Fig. 1, a kind of display device structure schematic diagram that Fig. 1 provides for the embodiment of the present invention.
As shown in Figure 1, display device provided by the invention, comprise display panel 1 and the backlight module 2 being positioned at display panel 1 incident side, display panel 1 comprises array base palte 12, color membrane substrates 11 and the liquid crystal layer between array base palte 12 and color membrane substrates 11 13, liquid crystal layer 13 is prepared from by uvioresistant liquid crystal material, and backlight module 2 comprises display light source 21 and ultraviolet source 22.
The irradiation of ultraviolet light can accelerate the response time of liquid crystal deflecting element motion, as shown in table 1, table 1 is the response time with or without liquid crystal deflecting element motion in UV-irradiation two kinds of situations, the result of the double sampling of experiment test is given in figure, wherein, No UV is the situation without UV-irradiation, and UV is the situation of additional UV-irradiation, Sample 1 is first time sampled result, and Sample 2 is second time sampled result.Comparing result as can be seen from table, when additional UV-irradiation, the average rise time of liquid crystal deflecting element and average fall time are all than without short when UV-irradiation, so can draw, when additional UV-irradiation, liquid crystal deflecting element response speed can be promoted.
Table 1 is with or without the response time of liquid crystal deflecting element motion in UV-irradiation two kinds of situations
In above-mentioned display device, the response process of liquid crystal molecule during to apply gray scale voltage to pixel electrode in liquid crystal layer 13 illustrates.As depicted in figs. 1 and 2, it is front that data line applies grayscale signal (the Data signal as in Fig. 2) in one-row pixels electrode, and the display light source 21 in backlight module 2 starts, and backlight normally works; When data line applies grayscale signal in one-row pixels electrode, electric field E is formed between this row pixel electrode and public electrode, drive the liquid crystal molecule in liquid crystal layer 13 corresponding in this row pixel electrode to rotate, display panel starting image switches, as shown in the curve of the B-W section in Fig. 2; As shown in Figure 2, while applying Data signal, ultraviolet source 22 starts, and its ultraviolet lighting launched is mapped in the liquid crystal layer 13 of pixel cell, as shown in phantom in fig. 1; Liquid crystal molecule in the liquid crystal layer 13 that this row pixel cell is corresponding is while being subject to electric field E effect, absorb the ultraviolet light that ultraviolet source 22 is launched, after liquid crystal molecule absorbs the energy of ultraviolet light, absorbed energy makes liquid crystal molecule vibrate enhancing, thus the mobility of liquid crystal molecule strengthens in liquid crystal layer 13, and then accelerate the deflection of liquid crystal molecule, improve response speed, reduce the response time.
Therefore, in above-mentioned display device, the response speed of display panel 1 is very fast.
In a kind of specific embodiment, the ultraviolet light that ultraviolet source 22 sends is the ultraviolet light of single wavelength, and its wavelength coverage can be 190 ~ 280nm, and ultraviolet source 22 is cold light source, and its UV energy sent is lower, for being less than 10mW/cm
2.The wavelength that the ultraviolet light that above-mentioned ultraviolet source 22 sends is chosen and energy range can not destroy liquid crystal molecule, do not affect liquid crystal layer 13 performance.
Preferably, the wavelength of the ultraviolet light that described ultraviolet source 22 sends is 254nm, and the energy of each photon is 8.3 × 10
-19, after liquid crystal layer 13 absorbs these energy, be easy to be given to whole liquid crystal molecule and become molecular vibration, the mobility of liquid crystal molecule is strengthened, thus reduce the response time of liquid crystal deflecting element.
On the basis of above-described embodiment, in a kind of specific embodiment, as shown in Figure 1, backlight module 2 is side entrance back module, comprise the light guide plate 23 being positioned at array base palte 12 and deviating from liquid crystal layer 13 side, light guide plate 23 side relative with display light source 21 is incidence surface, and light guide plate 23 side relative with ultraviolet source 22 is incidence surface.
On the basis of the various embodiments described above, display light source 21 and ultraviolet source 22 are positioned at the incidence surface side of light guide plate 23, can have following two kinds of embodiments:
Mode one, as shown in Figure 1, display light source 21 and ultraviolet source 22 are positioned at the same side of light guide plate 23.
Mode two, display light source 21 is positioned at the side of light guide plate 23, and ultraviolet source 22 is positioned at the side that light guide plate 23 deviates from display light source 21.
Certainly, backlight module 2 also can be the backlight module of straight-down negative.
In a kind of preferred embodiment, when backlight module 2 is down straight aphototropism mode set, ultraviolet source 22 comprises and the ultraviolet light emission unit one to one of the multirow pixel cell in display panel 1 pixel cell.
Preferably, ultraviolet source 22 also comprises: with the multirow pixel cell optical fiber one to one in the pixel cell of display panel 1; In the one-row pixels unit of each optical fiber and its correspondence, optical fiber is provided with and each pixel cell light-emitting window one to one in one-row pixels unit, and every a pair light-emitting window and pixel cell are oppositely arranged;
Optical fiber and ultraviolet light emission unit one_to_one corresponding; In every a pair mutually corresponding optical fiber and ultraviolet light emission unit, one end of optical fiber is connected with the light outlets of ultraviolet light emission unit.
On the basis of above-described embodiment, in a kind of preferred embodiment, display device also comprises and being connected with ultraviolet source 22 signal, to control the controller of ultraviolet source 22 automatic switch.This controller can while picture element signal enters one-row pixels electrode, control to start ultraviolet light emission unit corresponding with this row pixel electrode in ultraviolet source 22, and close this ultraviolet light emission unit after the liquid crystal molecule that this row pixel electrode is corresponding completes deflection.
On the basis of the various embodiments described above, in a kind of preferred embodiment, display light source 21 is white light source.
Certainly, when each pixel cell of display panel 1 in above-mentioned display device comprise red sub-pixel unit, green sub-pixels unit, blue subpixels unit three kinds of colors sub-pixel unit time, above-mentioned display light source 21 can also comprise red monochromatic light source, green monochromatic light source and blue monochromatic light source.
As shown in Figure 3, a kind of method of work based on the display device in above-mentioned any embodiment, comprising:
Step S101, when display device is started working, opens display light source 21;
Step S102, when picture element signal enters the one-row pixels unit of display panel 1, ultraviolet source 22 is opened, and the ultraviolet light of ultraviolet source 22 is irradiated this row pixel cell.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a display device, comprise display panel and the backlight module being positioned at described display panel incident side, described display panel comprises array base palte, color membrane substrates and the liquid crystal layer between described array base palte and color membrane substrates, it is characterized in that, described liquid crystal layer is prepared from by uvioresistant liquid crystal material, and described backlight module comprises display light source and ultraviolet source.
2. display device according to claim 1, is characterized in that, described backlight module is side entrance back module, comprising:
Be positioned at the light guide plate that described array base palte deviates from described liquid crystal layer side, the described light guide plate side relative with described display light source is incidence surface, and the described light guide plate side relative with described ultraviolet source is incidence surface.
3. display device according to claim 2, is characterized in that, described display light source and described ultraviolet source are positioned at the same side of described light guide plate.
4. display device according to claim 2, is characterized in that, described display light source is positioned at the side of described light guide plate, and described ultraviolet source is positioned at the side that described light guide plate deviates from display light source.
5. display device according to claim 1, is characterized in that, described backlight module is down straight aphototropism mode set.
6. display device according to claim 5, is characterized in that, described ultraviolet source comprises and the ultraviolet light emission unit one to one of the multirow pixel cell in described display panel pixel unit.
7. display device according to claim 6, is characterized in that, described ultraviolet source comprises:
With the multirow pixel cell optical fiber one to one in the pixel cell of described display panel; In the one-row pixels unit of each optical fiber and its correspondence, described optical fiber is provided with and each pixel cell light-emitting window one to one in described one-row pixels unit, and described in every a pair, light-emitting window and pixel cell are oppositely arranged;
Described optical fiber and ultraviolet light emission unit one_to_one corresponding; In every a pair mutually corresponding optical fiber and ultraviolet light emission unit, one end of described optical fiber is connected with the light outlets of described ultraviolet light emission unit.
8. the display device according to any one of claim 1 ~ 7, is characterized in that, also comprises and being connected with described ultraviolet source signal, to control the controller of described ultraviolet source automatic switch.
9. display device according to claim 1, is characterized in that, described display light source is white light source.
10. display device according to claim 1, is characterized in that, described ultraviolet source is the cold light source of single wavelength.
11. display device according to claim 10, is characterized in that, the wavelength of described ultraviolet source is 190 ~ 280nm.
The method of work of 12. 1 kinds of display device as described in any one of claim 1 ~ 11, is characterized in that, comprising:
When display device is started working, open display light source;
When picture element signal enters the one-row pixels unit of display panel, ultraviolet source is opened, and the ultraviolet light of ultraviolet source is irradiated this row pixel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602801.5A CN104297981B (en) | 2014-10-31 | 2014-10-31 | A kind of display device and its method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602801.5A CN104297981B (en) | 2014-10-31 | 2014-10-31 | A kind of display device and its method of work |
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| Publication Number | Publication Date |
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| CN104297981A true CN104297981A (en) | 2015-01-21 |
| CN104297981B CN104297981B (en) | 2017-03-15 |
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| CN201410602801.5A Expired - Fee Related CN104297981B (en) | 2014-10-31 | 2014-10-31 | A kind of display device and its method of work |
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| CN104297981B (en) | 2017-03-15 |
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