Display panel and its driving method, display device
Technical field
The present invention relates to display technology field, more particularly to a kind of display panel and its driving method, display
Device.
Background technology
With the development of science and technology, plane, which is shown, also can not increasingly meet the requirement of people, thus therewith
The stereoprojection that comes, 3D imaging technique also gradually entered into the sight of people.
In the prior art, stereo-picture generally is provided using image procossing, and is sent out by display panel 120
Light is shown.The light 122 that display panel 120 is sent is perpendicular to display panel 120 and passes through glass cover
Plate 110 is shown to user (as shown in Figure 1).
Specifically, changed by being arranged on the polarizer in display device 100 light direction and then
Allow users to see stereo-picture.When using linear polarizer, the light that beholder's right and left eyes are seen
Direction of rotation is opposite.When using circular polarizing disk, because the direction change of light does not influence display, viewing
The head of person can be freely movable.Stereoprojection requires very high to the polarizability of display device 100.But
It is therefore, existing because light scatters by polarizer towards different directions during stereoprojection
There is technology to there is serious light loss.And according to the difference of polarization characteristic, light loss degree is from 50%
To 80%.
In addition, in recent years, OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode)
Technology is quickly grown, and has become most possible replacement LCD (Liquid Crystal Display, liquid crystal
Show device) prospect technology.Stereo projection technology especially on the basis of OLED is people in the art
The hot research direction of member.
The content of the invention
There is provided a kind of display panel and its driving in order to overcome the defect that above-mentioned prior art is present by the present invention
Method, display device, it can provide vertical imaging to avoid light loss when showing stereo-picture.
The present invention provides a kind of display panel, including the first substrate and second substrate being oppositely arranged, described
Be provided between first substrate and the second substrate on liquid crystal molecule, the first substrate be provided with it is organic
Luminescent device;It is first direction, in said first direction, institute perpendicular to the direction of the display panel
Stating display panel includes intermediate region and side area;To between the first substrate and the second substrate
When applying electric field, liquid crystal molecule in the side area is to the middle area close to the second substrate side
Liquid crystal molecule in the direction deflection in domain, the intermediate region is arranged along the first direction.
Preferably, the first substrate is additionally provided with first electrode layer close to the side of the liquid crystal molecule,
The second substrate is provided with the second electrode lay, the first electrode layer close to the side of the liquid crystal molecule
It is powered to driving to electric field is applied between the first substrate and the second substrate with the second electrode lay
The dynamic liquid crystal molecule deflection.
Preferably, the second electrode is located at the intermediate region of the second substrate, first electricity
Pole covers the first substrate.Preferably, the liquid crystal molecule is positivity liquid crystal molecule.
Preferably, the organic luminescent device is arranged on the first substrate away from the first electrode layer
Side.
Preferably, the side area is located at the both sides of the intermediate region.
Preferably, the side area surrounds the intermediate region.
Preferably, when the display panel is powered, the yawing moment of the liquid crystal molecule and the first party
To angle increase with the increase of the liquid crystal molecule and the distance between the intermediate region.
Preferably, not between the first substrate and the second substrate apply electric field when, the liquid crystal
Molecule makes the light of the display panel along the first direction from described parallel to the first direction
Two substrates are projected.
According to another aspect of the invention, a kind of display device is also provided, the display device at least includes
Display panel as described above.
According to another aspect of the invention, a kind of driving method of display panel, the display surface are also provided
Plate includes the first substrate and second substrate being oppositely arranged, between the first substrate and the second substrate
It is provided with liquid crystal molecule, the first substrate and is provided with organic luminescent device, perpendicular to the display surface
The direction of plate is first direction, in said first direction, and the display panel includes intermediate region and side
Border area domain;The driving method includes:Apply electric field between the first substrate and the second substrate,
Liquid crystal molecule in the side area is inclined to the direction of the intermediate region close to the second substrate side
Turn, the liquid crystal molecule in the intermediate region is arranged along the first direction so that the organic light emission
The light of device is projected towards the intermediate region close to the second substrate side, to show stereo-picture.
Preferably, in addition to:Not to applying electric field, the liquid between the first substrate and the second substrate
Brilliant molecule parallel to the first direction, make the light of the organic luminescent device along the first direction from
The second substrate is projected.
Compared with prior art, the present invention has following advantage:
The deflection of liquid crystal material when the 1st, using the power on, realizes and shows stereo-picture with vertical imaging mode, enter
And light loss when avoiding showing stereo-picture in the prior art;
2nd, a variety of imaging modes are realized using the characteristic of liquid crystal material;
3rd, the present invention provides display device and can be used in wearable device, more convenient when user watches.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and excellent
Point will be apparent.
Fig. 1 shows the structural representation of the display device of prior art;
Fig. 2 shows according to embodiments of the present invention when being not powered on, the structural representation of display panel;
When Fig. 3 shows energization according to embodiments of the present invention, the structural representation of display panel;
Fig. 4 shows the schematic diagram of liquid crystal deflection angle according to embodiments of the present invention;
Fig. 5 shows the schematic diagram of display panel according to a first embodiment of the present invention;
Fig. 6 shows the schematic diagram of display panel according to a second embodiment of the present invention.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can
Implement in a variety of forms, and be not understood as limited to embodiment set forth herein;It is opposite that there is provided this
A little embodiments cause the present invention fully and completely, and the design of example embodiment will be passed on comprehensively
To those skilled in the art.Identical reference represents same or similar structure in figure, thus
Repetition thereof will be omitted.
Described feature, structure or characteristic can be combined in one or more realities in any suitable manner
Apply in mode.In the following description there is provided many details so as to provide the embodiment party to the present invention
Formula is fully understood.However, one of ordinary skill in the art would recognize that, without one in specific detail or
It is more, or using other methods, constituent element, material etc., technical scheme can also be put into practice.
In some cases, it is not shown in detail or describes known features, material or operates to avoid obscuring this hair
It is bright.
The accompanying drawing of the present invention is only used for illustrating relative position relation, and the thickness at some positions employs what is lavished praise on oneself
Plotting mode is in order to understand, the thickness in accompanying drawing does not represent the proportionate relationship of actual thickness.This paper's
The upper and lower relation of each layer comprising directly contact, or during non-direct contact above and below corresponding relation.
Light loss during in order to avoid display stereo-picture, the present invention provides a kind of display panel, referring to Fig. 2
To Fig. 4.Display panel 200 includes first substrate 220, second substrate 210 and liquid crystal molecule 230.Its
In, first substrate 220 and second substrate 210 are relative.Liquid crystal molecule 230 is located at the He of first substrate 220
Between second substrate 210.Display panel 200 is in the Y-direction (i.e. first perpendicular to display panel 200
Direction) on can be divided into intermediate region A and side area B.In certain embodiments, side area B
Intermediate region A both sides can be located at.In another lower embodiment, side area B can surround intermediate region
A.Specifically, in the present invention, when to the region before first substrate 220 and second substrate 210
When applying electric field, the liquid crystal molecule 230 positioned at side area B is deflected, and specific deflection way will pass through
Each following embodiment are described.
First substrate 220 and second substrate 210 are preferably glass substrate.First substrate 220 and second
Substrate 210 can also be made up of other transparent materials.Organic hair is preferably provided with first substrate 220
Optical device, display panel 200 lights to show by the organic luminescent device being arranged on first substrate 220
Diagram picture.Further, organic luminescent device is arranged on first substrate 220 away from liquid crystal molecule 230
Side.
In the present embodiment, the side of second substrate 210 towards first substrate 220 is provided with second electrode
Layer 211, the side of first substrate 220 towards second substrate 210 is provided with first electrode layer 221.First
Electrode layer 221 and the second electrode lay 211 connect after electricity the shape between first substrate 220 and second substrate 210
Into electric field so that the liquid crystal molecule 230 positioned at side area B deflects.Preferably, first electrode
Layer 221 and the second electrode lay 211 are made up of transparent conductive material.In certain embodiments, display panel
200 are used for wearable device, can control first electrode layer 221 and the second electrode lay 211 by wearable device
Energization whether.Those skilled in the art can also be by the arrangement mode of other electrode layers in first substrate
Electric field is formed between 220 and second substrate 210, be will not be described here.
Referring to Fig. 2, when first electrode layer 221 and the second electrode lay 211 and when being not powered on, first substrate
There is no electric field to be formed between 220 and second substrate 210, each liquid crystal molecule 230 is parallel to vertically displayed face
The first direction Y of plate 200, makes the light 222 of display panel 220 in the first direction one from second substrate
210 project.In certain embodiments, when first electrode layer 221 and the second electrode lay 211 are not powered on,
Display panel 200 can be with display plane image.In some change case, first electrode layer 221 and second
When electrode layer 211 is not powered on, display panel 200 can also show stereo-picture.The institute of display panel 200
The image to be shown makes the display panel show stereo-picture by image procossing.
Referring to Fig. 3, when first electrode layer 221 and the energization of the second electrode lay 211, first substrate 220
Electric field is formed between second substrate 210, the liquid crystal molecule 230 positioned at side area B is towards close to the
The intermediate region A deflections of two substrates 210, positioned at intermediate region A liquid crystal molecule 230 and Y-direction
It is parallel so that the light 222 ' that the organic luminescent device on first substrate 220 is sent is towards close to the second base
The intermediate region A of plate 210 is projected from second substrate 210, to show stereo-picture.Preferably, when
When one electrode layer 221 and the energization of the second electrode lay 211, positioned at side area B liquid crystal molecule 230
Angle between yawing moment and Y-direction with the distance between liquid crystal molecule 230 and intermediate region A increasing
Increase greatly.
Specifically, referring to Fig. 4, in order to clearly be shown at side area B liquid crystal molecule 230
Yawing moment and Y-direction between angle and the distance between liquid crystal molecule 230 and intermediate region A it
Between relation, the side area B of intermediate region A sides liquid crystal molecule 230 is only shown.In Fig. 4,
The central point of each liquid crystal molecule 230 is respectively a1 to a6.Centerline is located at for a1 liquid crystal molecule 230
In the A of intermediate region.Centerline is located in the B of side area for a2 to a6 liquid crystal molecule 230.Side
Angle between the yawing moment and Y-direction of liquid crystal molecule 230 in the B of region is respectively b2 to b6.
A2 is corresponding with b2, a3 and b3 is corresponding, the like.In the liquid crystal molecule in the B of side area
In 230, the distance between central point a6 to intermediate region A is most long, central point a5 to intermediate region A
The distance between take second place, the like.The distance between central point a2 to intermediate region A is most short.Phase
Ying Di, in the B of side area, the distance between central point to intermediate region A most long liquid crystal molecule
Angle b6 between the yawing moment and Y-direction of 230 (its central point is a6) is maximum.Central point is in
Between the distance between region the A yawing moment and Y of the liquid crystal molecule 230 (its central point is a5) that take second place
Angle b5 between direction takes second place, the like.Central point is most short to the distance between intermediate region A
Liquid crystal molecule 230 (its central point be a2) yawing moment and Y-direction between angle b2 it is minimum.
The liquid crystal molecule 230 for being preferably located at intermediate region A is not deflected, and it is parallel with Y-direction.
Below according to two specific embodiments of Fig. 5 and Fig. 6 description present invention.
First embodiment
Referring to Fig. 5, in the first embodiment, side area B is located at intermediate region A both sides.Preferably,
Two side area B area equations positioned at intermediate region A both sides.First substrate 220 and second substrate
When not applying electric field between 210, each liquid crystal molecule 230 is put down with the Y-direction perpendicular to display panel 200
OK.
When applying electric field between first substrate 220 and second substrate 210 during liquid, the liquid positioned at side area
Brilliant molecule 230 is deflected towards the intermediate region A close to the side of second substrate 210 causes display panel 200
Intermediate region A show stereo-picture in the Y direction.In other words, positioned at intermediate region A both sides
The symmetric deflection of liquid crystal molecule 230.That is, the eyes of beholder are vertically seen in along Y-direction
Between near the A of region, it can be seen that the stereo-picture shown by display panel 200.
Specifically, in the present embodiment, in order that liquid crystal molecule 230 is deflected in a manner described, first
Electrode layer covers first substrate 220, and the second electrode lay 211 is arranged on the centre of second substrate 210
In the A of region.Thus, when first electrode layer and the second electrode lay 211 are powered, in first substrate 220
Electric field is formed between second substrate 210, the electric field has the electric field from second electrode towards first electrode
Line.In other words, the electric field has from first substrate 220 towards the intermediate region A of second substrate 210 electricity
Field wire.Simultaneously as liquid crystal molecule 230 is positivity liquid crystal molecule, its yawing moment is parallel with electric field line,
It is thereby achieved that deflection way as shown in Figure 5.
Second embodiment
It is similar with the display panel shown in Fig. 5 referring to Fig. 6, from unlike Fig. 5, implementing second
In example, side area B surrounds intermediate region A.Preferably, intermediate region A is located at display panel 200
Center.Intermediate region A shape can be circle, rectangle, rhombus or other shapes.In this implementation
In example, the liquid crystal molecule 230 around the A of intermediate region is deflected both facing to intermediate region A.
In order that liquid crystal molecule 230 is deflected in such a way, first electrode layer covering first substrate 220,
And the second electrode lay 211 is arranged in the intermediate region A on second substrate 210.Thus, when first
When electrode layer and the energization of the second electrode lay 211, formed between first substrate 220 and second substrate 210
Electric field, the electric field has the electric field line of the intermediate region A towards the side of second substrate 210.In other words,
The electric field has from first substrate 220 towards the intermediate region A of second substrate 210 electric field line.Meanwhile,
Because liquid crystal molecule 230 is positivity liquid crystal molecule, its yawing moment is parallel with electric field line, therefore, it can
Realize the deflection way shown in Fig. 6.
According to another aspect of the invention, the driving method of above-mentioned display panel is also provided.Driving method bag
Include following two steps:
Step one:To the liquid crystal molecule applied between first substrate and second substrate in electric field, side area
To the direction deflection of the intermediate region close to second substrate side, liquid crystal molecule in intermediate region is along hanging down
The straight direction in display panel is arranged so that the light of organic luminescent device is towards close to second substrate side
Intermediate region project, to show stereo-picture.
Step 2:Not to electric field is applied between first substrate and second substrate, liquid crystal molecules parallel is in vertical
In the direction of display panel, make the light of organic luminescent device along perpendicular to the direction of display panel from described
Second substrate is projected.
In certain embodiments, the application of the electric field between first substrate and second substrate can be with being arranged on
The energization of organic light emission component on first substrate is synchronously carried out.For example, when organic light emission component leads to
When electric, also apply electric field between first substrate and second substrate so that display panel is just shown when opening
Stereo-picture.In some change case, the application of the electric field between first substrate and second substrate can be with
The asynchronous progress of energization of organic light emission component on the first substrate is set.For example, when organic light emission member
When device is powered, it can choose whether to applying electric field between first substrate and second substrate, if to first
Apply electric field between substrate and second substrate, then display panel shows stereo-picture;If not to first substrate
Apply electric field between second substrate, then display panel display plane image.
According to another aspect of the invention, also providing a kind of includes the display device of above-mentioned display panel.It is aobvious
Showing device for example can be the display device of Intelligent worn device.Display device is in addition to display panel, also
Other components can be included, such as image processor, signal transmission interface and contact panel, these
Component can be configured according to the function of display device.Those skilled in the art can realize display
The more change case of device, are not chased herein.
Compared with prior art, the present invention has following advantage:
The deflection of liquid crystal molecule when the 1st, using the power on, realizes and shows stereo-picture with vertical imaging mode, enter
And light loss when avoiding showing stereo-picture in the prior art, it is possible to further reduce 70% or so
Light loss;
2nd, a variety of imaging modes are realized using the characteristic of liquid crystal molecule;
3rd, the present invention provides display panel and can be used in wearable device, more convenient when user watches.
The illustrative embodiments of the present invention are particularly shown and described above.It should be understood that of the invention
Disclosed embodiment is not limited to, on the contrary, it is intended to cover included in scope
Interior various modifications and equivalent replacement.