CN110426886A - Liquid crystal display panel and its driving method and liquid crystal display device - Google Patents
Liquid crystal display panel and its driving method and liquid crystal display device Download PDFInfo
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- CN110426886A CN110426886A CN201910663399.4A CN201910663399A CN110426886A CN 110426886 A CN110426886 A CN 110426886A CN 201910663399 A CN201910663399 A CN 201910663399A CN 110426886 A CN110426886 A CN 110426886A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of liquid crystal display panels, including first substrate, the second substrate being oppositely arranged with first substrate and the liquid crystal layer between first substrate and the second substrate, first substrate is equipped with the first polarizing film, the second substrate is equipped with the second polarizing film, first substrate is equipped with the first quarter-wave plate, first light transmission shaft of the fast and slow axis of the first quarter-wave plate and the first polarizing film is in 45 °, the second substrate is equipped with reflecting electrode, first substrate is equipped with the auxiliary electrode opposite with reflecting electrode, the region that liquid crystal display panel corresponds to reflecting electrode is echo area, the region that liquid crystal display panel corresponds to each pixel unit is transmission area, the corresponding thickness of liquid crystal layer in echo area is the half of the corresponding thickness of liquid crystal layer of transmission area.By control echo area in corresponding liquid crystal molecule lie low or midstance between convert, with realize mirror-reflection and transmission between switching.The invention also discloses a kind of driving method and liquid crystal display devices.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of liquid crystal display panel and its driving method and liquid
Crystal device.
Background technique
With the development and progress of LCD technology, requirement of the people to liquid crystal display device is higher and higher, currently, one
Money not only can be used as mirror use but also simultaneous display device with a display func gains great popularity, i.e. mirror face display equipment.
The preparation of existing mirror face display equipment, which is typically employed on the light of appearing of display panel, pastes one layer of half-reflection and half-transmission
Film, when being shown, the light from backlight forms colour picture by display panel, is shown；After the completion of display,
The light from external environment is radiated on part reflective semitransparent film the display that can realize mirror surface at this time.
Photoelectric characteristic matching between transmission mode and reflective-mode is an extremely important problem, in order to solve light
The imbalance of electroresponse, Sharp Corp by using electrically conerolled birefringence liquid crystal mode dual-box thick structure transflective lcd,
To be compensated to transmission mode and reflective-mode using different cel-gaps.
Although liquid crystal display device in the prior art realizes the function of transmission and reflection, asked there is also following
Topic:
1, when transmiting display, mirror-reflection is also existed simultaneously, and can not close, and very big shadow can be shown to regular transmission
It rings；
2, dual-box thick designs mirror-reflection when can mitigate normal display, but thickness, cost and technology difficulty increase.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of LCD display
Plate and its driving method and liquid crystal display device, mirror-reflection to solve liquid crystal display device in the prior art is uncontrollable,
The problem of thickness is larger and higher cost.
The purpose of the invention is achieved by the following technical solution:
The present invention provides a kind of liquid crystal display panel, including first substrate, the second base being oppositely arranged with the first substrate
Plate and the liquid crystal layer between the first substrate and the second substrate, the second substrate is on the side towards the liquid crystal layer
It is limited by multi-strip scanning line and multiple data lines mutually insulated intersection and is formed multiple pixel units, picture is equipped in each pixel unit
Plain electrode and thin film transistor (TFT), the pixel electrode pass through the thin film transistor (TFT) and the scan line and data of closing on the thin film transistor (TFT)
Line is electrically connected, which is equipped with the first polarizing film, which is equipped with the second polarizing film, first polarizing film
The second light transmission shaft of the first light transmission shaft and second polarizing film be mutually perpendicular to, which is equipped with the first quarter-wave
First light transmission shaft of piece, the fast and slow axis of first quarter-wave plate and first polarizing film is in 45 °, and the second substrate is in direction
The side of the liquid crystal layer is equipped with reflecting electrode, which is equipped with opposite with the reflecting electrode in the side towards the liquid crystal layer
Auxiliary electrode, the reflecting electrode at least cover the multi-strip scanning line and the multiple data lines and along the multi-strip scanning line and
The multiple data lines direction extends, and the region which corresponds to the reflecting electrode is echo area, the LCD display
The region that plate corresponds to each pixel unit is transmission area, and the corresponding thickness of liquid crystal layer in the echo area is the corresponding liquid crystal of the transmission area
The half of thickness degree.
Further, region corresponding with the echo area is provided with boss in the second substrate, the boss and the reflection
Electrode pattern having the same, the reflecting electrode are covered on the boss.
Further, which is pattern structure, first quarter-wave plate and reflection electricity
Pole consistency from top to bottom and pattern having the same.
Further, which is whole face structure, is additionally provided with the entire 2nd 4 in the second substrate
Second light transmission shaft of/mono- wave plate, the fast and slow axis of second quarter-wave plate and second polarizing film is in 45 °.
Further, which is arranged between the first substrate and the auxiliary electrode.
Further, it being additionally provided with public electrode in the second substrate, the pixel electrode and the public electrode are located at different layers,
Or the pixel electrode is located on the same floor with the public electrode.
Further, which is pattern structure, and the auxiliary electrode is be overlapped up and down with the reflecting electrode and has
Identical pattern.
Further, which is whole face structure, which is that block structure is distributed in each pixel unit
It is interior.
The present invention also provides a kind of driving method, which, should for driving liquid crystal display panel as described above
Driving method includes:
When needing when mirror-reflection, transmission area is dark-state, and echo area is opened to be shown as mirror surface, right in echo area at this time
Answer the liquid crystal molecule in liquid crystal layer in lying posture；
When needing normal display, echo area is closed, transmission area is normally to penetrate display pattern, corresponding in echo area at this time
Liquid crystal molecule in liquid crystal layer is in midstance.
The present invention also provides a kind of liquid crystal display devices, including liquid crystal display panel as described above.
The beneficial effects of the invention are that: liquid crystal display panel includes second that first substrate and first substrate are oppositely arranged
Substrate and the liquid crystal layer between first substrate and the second substrate, first substrate are equipped with the first polarizing film, the second substrate
It is equipped with the second polarizing film, first substrate is equipped with the first quarter-wave plate, the fast and slow axis of the first quarter-wave plate and the
First light transmission shaft of one polarizing film is in 45 °, and the second substrate is equipped with reflecting electrode, and first substrate is equipped with opposite with reflecting electrode
Auxiliary electrode, the region that liquid crystal display panel corresponds to reflecting electrode is echo area, and liquid crystal display panel corresponds to each pixel list
The region of member is transmission area, and the corresponding thickness of liquid crystal layer in echo area is the half of the corresponding thickness of liquid crystal layer of transmission area.By
Control the pressure difference between reflecting electrode and auxiliary electrode, make in echo area corresponding liquid crystal molecule lie low or midstance between
The switching between mirror-reflection and transmission is realized in transformation.In normal display, dark-state is presented in echo area, is used as black matrix,
The aperture opening ratio of liquid crystal display panel will not be reduced.Relative to the mirror-reflection of dual-box thick design, thickness, cost and technology difficulty
Reduce.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of liquid crystal display panel in the present invention；
Fig. 2 is the planar structure schematic diagram of first substrate in the present invention；
Fig. 3 be in the embodiment of the present invention one liquid crystal display panel in the cross section structure schematic diagram of reflective condition；
Fig. 4 is the schematic illustration of liquid crystal display panel in Fig. 3；
Fig. 5 be in the embodiment of the present invention one liquid crystal display panel in the cross section structure schematic diagram of transmissive state；
Fig. 6 is the schematic illustration of liquid crystal display panel in Fig. 5；
Fig. 7 be in the embodiment of the present invention two liquid crystal display panel in the cross section structure schematic diagram of transmissive state；
Fig. 8 be in the embodiment of the present invention three liquid crystal display panel in the cross section structure schematic diagram of transmissive state；
Fig. 9 be in the embodiment of the present invention four liquid crystal display panel in the cross section structure schematic diagram of original state；
Figure 10 be in the embodiment of the present invention four liquid crystal display panel in the cross section structure schematic diagram of reflective condition；
Figure 11 be in the embodiment of the present invention four liquid crystal display panel in the cross section structure schematic diagram of transmissive state；
Figure 12 be in the embodiment of the present invention five liquid crystal display panel in the cross section structure schematic diagram of transmissive state；
Figure 13 be in the embodiment of the present invention six liquid crystal display panel in the cross section structure schematic diagram of transmissive state.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the tool of liquid crystal display panel proposed according to the present invention and its driving method and liquid crystal display device
Body embodiment, structure, feature and its effect, detailed description are as follows:
[embodiment one]
As shown in Figures 1 to 6, the embodiment of the present invention one provide a kind of liquid crystal display panel, including first substrate 10, with
The second substrate 20 that first substrate 10 is oppositely arranged and the liquid crystal layer 30 between first substrate 10 and the second substrate 20, the
Two substrates 20 are limited and are formed by multi-strip scanning line 1 and 2 mutually insulated of multiple data lines intersection on the side towards liquid crystal layer 30
Pixel electrode 23 and thin film transistor (TFT) 3 are equipped in multiple pixel unit P, each pixel unit P, pixel electrode 23 passes through film crystalline substance
Body pipe 3 is electrically connected with the scan line 1 and data line 2 for closing on thin film transistor (TFT) 3, wherein and first substrate 10 is color membrane substrates, the
Two substrates 20 are array substrate, and thin film transistor (TFT) 3 includes grid, source electrode and drain electrode, and source electrode and drain electrode is connected by semiconductor layer.
In the present embodiment, liquid crystal layer 30 uses positive liquid crystal molecules (liquid crystal molecule that dielectric anisotropy is positive), in liquid crystal layer 30
Positive liquid crystal molecules are parallel to color membrane substrates and array substrate carries out orientation.
First substrate 10 is equipped with the first polarizing film 40, and the second substrate 20 is equipped with the second polarizing film 50, the first polarizing film
40 the first light transmission shaft X1 is mutually perpendicular to the second light transmission shaft X2 of the second polarizing film 50.In the present embodiment, the first polarizing film 40
Positioned at the outside (side far from liquid crystal layer 30) of first substrate 10, the outside that the second polarizing film 50 is located at the second substrate 20 is (remote
The side of chaotropic crystal layer 30), but be not limited thereto.
First substrate 10 is equipped with the first quarter-wave plate 13, the fast and slow axis X3 and first of the first quarter-wave plate 13
First light transmission shaft X1 of polarizing film 40 be in 45 °, the second substrate 20 the side towards liquid crystal layer 30 be equipped with reflecting electrode 25, first
Substrate 10 is equipped with the auxiliary electrode 14 opposite with reflecting electrode 25 in the side towards liquid crystal layer 30, and reflecting electrode 25 at least covers
Firmly multi-strip scanning line 1 extends (such as Fig. 2) with the multiple data lines 2 and along multi-strip scanning line 1 and 2 direction of multiple data lines, this
In embodiment, the width of reflecting electrode 25 is greater than the width of scan line 1, data line 2, and goes back covering part pixel unit P's
Region, it acts as black matrix" (BM) in existing custom liquid crystals display device can be played the role of, for example, working as pixel electrode
When for bulk, the gap area of pixel electrode and scan line 1, data line 2 in pixel unit P is also covered.Liquid crystal display panel
The region of corresponding reflecting electrode 25 is echo area R, and liquid crystal display panel correspond to the region of each pixel unit P as transmission area T (such as
Fig. 1), R corresponding 30 thickness of liquid crystal layer in echo area is the half of corresponding 30 thickness of liquid crystal layer of transmission area T.Make echo area R first
Beginning state is equivalent to quarter-wave plate (λ/4), have the function of making across light a quarter phase delay, transmission occurs
Area T is equivalent to half wave plate (λ/2) after application of a voltage, have make across light half phase delay occurs
Effect.
In the present embodiment, region corresponding with echo area R is provided with boss 24 in the second substrate 20, boss 24 and anti-
The pattern having the same of radio pole 25, reflecting electrode 25 are covered on boss 24.First quarter-wave plate 13 is patterning knot
Structure, the first quarter-wave plate 13 and 25 consistency from top to bottom of reflecting electrode and pattern having the same.In the present embodiment, the one or four point
One of wave plate 13 be arranged between first substrate 10 and auxiliary electrode 14.Wherein, boss 24, reflecting electrode the 25, the 1st/
The sum of one wave plate 13 and thickness of auxiliary electrode 14 are equivalent to the half of corresponding 30 thickness of liquid crystal layer of transmission area T, so as to
The thickness for not changing available liquid crystal box realizes that transmission switches with reflection.Certainly, in other embodiments, the first quarter-wave plate
13 can be located at the other positions on first substrate 10, but be not limited thereto.
Color blocking material layer 11 is additionally provided on first substrate 10, color blocking material layer 11 includes red (R), green (G), blue (B) three color
Color blocking material, and be correspondingly formed the sub-pixel of red (R), green (G), blue (B) three color.First quarter-wave plate 13 and color blocking material
Flatness layer 12 is additionally provided between the bed of material 11, since echo area R can control passing through for light, so not needing on first substrate 10
Setting black matrix (BM) stops backlight, i.e. echo area R and is shown in transmission instead of the region of the black matrix of the prior art
When have shade function same as black matrix.On the contrary, setting black matrix (BM) can also stop ambient light, echo area R is influenced
Reflecting effect.
In the present embodiment, public electrode 21 is additionally provided in the second substrate 20, pixel electrode 23 is located at public electrode 21
Different layers are simultaneously kept apart by insulating layer 22, and public electrode 21 can be located above or below pixel electrode 23 (is shown in Fig. 3
Public electrode 21 is located at the lower section of pixel electrode 23), it is preferable that public electrode 21 is the plane-shape electrode of whole face setting, pixel electricity
Pole 23 is the block type electrode that monolith is arranged in each pixel region or the gap electrode with multiple electrodes item, to form side
Edge field switch mode (Fringe Field Switching, FFS).Certainly, in other embodiments, pixel electrode 23 with it is public
Electrode 21 can be located on the same floor, but the two is spaced from each other, and pixel electrode 23 and public electrode 21 respectively may each comprise multiple electricity
Pole item, the electrode strip of pixel electrode 23 and the electrode strip of public electrode 21 are arranged alternately with each other, to form in-plane-switching mode
(In-Plane Switching, IPS).
In the present embodiment, auxiliary electrode 14 is pattern structure, auxiliary electrode 14 and 25 consistency from top to bottom of reflecting electrode and
Pattern having the same.That is 14 whole face of auxiliary electrode is covered on first substrate 10, and in the place etching shape of corresponding transmission area T
At opening corresponding with transmission area T-phase.
Wherein, first substrate 10 and the second substrate 20 can be made of materials such as glass, acrylic acid and polycarbonate.Pixel
The material of electrode 23, public electrode 21 and auxiliary electrode 14 can be tin indium oxide (ITO) or indium zinc oxide (IZO) etc..Reflection
The reflecting electrode 25 of area R can be the materials such as reflectivity higher Al, Ag.
A kind of driving method is also provided in the present embodiment, driving method is used to drive liquid crystal display panel as described above,
Driving method includes:
When needing when mirror-reflection, transmission area T is dark-state, and echo area R is opened to be shown as mirror surface, at this time echo area R
Liquid crystal molecule in interior corresponding liquid crystal layer 30 is in lying posture；
When needing normal display, echo area R is closed, transmission area T is normally to penetrate display pattern, at this time in the R of echo area
Liquid crystal molecule in corresponding liquid crystal layer 30 is in midstance.
Referring to figure 3. and Fig. 4, in the present embodiment, in the initial state, positive liquid crystal molecules in liquid crystal layer 30 are in lying low
Posture, at this point, R corresponding liquid crystal layer 30 in echo area is equivalent to quarter-wave plate (λ/4), due to pixel electrode 23 and common electrical
Without applying driving voltage on pole 21, the corresponding liquid crystal layer 30 of transmission area T does not have polarization.First environment light I1 passes through saturating
It penetrating area T and is absorbed by the second polarizing film 50, the first backlight BL1 passes through transmission area T and is absorbed by the first polarizing film 40, at this point,
Transmission area T is in dark-state.In echo area R, second environment light I2, which passes through the first polarizing film 40, becomes linearly polarized light, passes through the one or four point
One of wave plate 13 become circularly polarized light (being set as left-handed), pass through liquid crystal layer 30 (being equivalent to quarter-wave plate) become linear polarization
Light, and linearly polarized light is radiated on reflecting electrode 25 and is still linearly polarized light after reflection and polarization direction is constant, reflection
Become circularly polarized light by liquid crystal layer 30 (being equivalent to quarter-wave plate) afterwards and direction of rotation is constant (left-handed), eventually passes through
One quarter-wave plate 13 and the first polarizing film 40 project liquid crystal display panel, realize reflection, and the second backlight BL2 can be anti-
Radio pole 25 absorbs or reflects back, i.e., the second backlight BL2 does not pass through echo area R.Liquid crystal display panel is at the beginning
Existing reflective condition.
Apply on pixel electrode 23 and public electrode 21 in transmissive state with Fig. 6 referring to figure 5. and normally drive electricity
Pressure forms horizontal component of electric field E2, and the positive liquid crystal molecules that transmission area T is corresponded in liquid crystal layer 30 deflect in the horizontal direction, at this point,
The corresponding liquid crystal layer 30 of transmission area T is equivalent to half wave plate (λ/2), and first environment light I1 can pass through transmission area T, but simultaneously
Normal display will not be impacted, the first backlight BL1 can pass through transmission area T and project from the first polarizing film 40, this
When, transmission area T is in normal display state.Auxiliary electrode 14 and reflecting electrode 25 apply corresponding driving voltage, form vertical electricity
Field E1, echo area R correspond to the positive liquid crystal molecules in liquid crystal layer 30 in standing state, at this point, the corresponding liquid crystal layer 30 of echo area R
Without polarization, second environment light I2, which passes through the first polarizing film 40, becomes linearly polarized light, passes through the first quarter-wave plate
13 become circularly polarized light (being set as left-handed), pass through liquid crystal layer 30 (not having polarization) or circularly polarized light (left-handed), and circle is inclined
Vibration light is radiated on reflecting electrode 25 and is still circularly polarized light but oppositely oriented (dextrorotation) after reflection, by liquid after reflection
Crystal layer 30 (not having polarization) or circularly polarized light (dextrorotation), eventually passing through the first quarter-wave plate 13 becomes with first partially
First light transmission shaft X1 of vibration piece 40 vertical linearly polarized light, and absorbed by the first polarizing film 40, and the second backlight BL2 can be anti-
Radio pole 25 absorbs or reflects back, i.e., the second backlight BL2 does not pass through echo area R, at this point, dark-state is presented in echo area R, makees
For black matrix (BM) use.So liquid crystal display panel is transmissive state.
By controlling the voltage being applied on pixel electrode 23, public electrode 21, auxiliary electrode 14 and reflecting electrode 25 letter
Number, realize that liquid crystal display panel switches between transmissive state or reflective condition.In normal display, echo area R is presented
Dark-state uses as black matrix (BM), will not reduce the aperture opening ratio of liquid crystal display panel.
[embodiment two]
As shown in fig. 7, the liquid crystal display in liquid crystal display panel provided by Embodiment 2 of the present invention and embodiment one (Fig. 5)
Panel is essentially identical, the difference is that, in the present embodiment, the first quarter-wave plate 13 is whole face structure, the second substrate
It is additionally provided with entire second quarter-wave plate 26 on 20, the fast and slow axis of the second quarter-wave plate 26 and the second polarizing film 50
Second light transmission shaft X2 is in 45 °.Because needing to attach second in 20 side of the second substrate using the first quarter-wave plate of whole face 13
Quarter-wave plate 26 is corresponding with the first quarter-wave plate 13, just will not influence the normal display of transmission area T.Certainly, second
Quarter-wave plate 26 need to correspond in transmission area T, but will increase etching technics in this way.
In the present embodiment, the first quarter-wave plate 13 is arranged between first substrate 10 and auxiliary electrode 14, and the two or four
/ mono- wave plate 26 is arranged between the second substrate 20 and the second polarizing film 50, certainly, the first quarter-wave plate the 13, the 2nd 4
Other layers can be also arranged in in/mono- wave plate 26 according to actual needs, for example, the first quarter-wave plate 13 is arranged in the first base
Between plate 10 and color blocking layer 11, the second quarter-wave plate 26 be arranged between the second substrate 20 and public electrode 21, not with
This is limited.
Relative to embodiment one, the first quarter-wave plate 13 in the present embodiment does not need to take additional etching technics,
Etching technics is taken relative to the first quarter-wave plate 13, it is additional to increase production required for the second quarter-wave plate 26
Time is less, increases production efficiency.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
One is identical, and which is not described herein again.
[embodiment three]
As shown in figure 8, the liquid crystal display in liquid crystal display panel and embodiment two (Fig. 7) that the embodiment of the present invention three provides
Panel is essentially identical, the difference is that, in the present embodiment, the setting of the first quarter-wave plate 13 is in first substrate 10 and the
Between one polarizing film 40, the second quarter-wave plate 26 is arranged between the second substrate 20 and the second polarizing film 50, certainly, first
Other layers can be also arranged in quarter-wave plate 13, the second quarter-wave plate 26 according to actual needs, for example, the one or four/
One wave plate 13 is arranged between first substrate 10 and color blocking layer 11, and the setting of the second quarter-wave plate 26 is in the second substrate 20 and public affairs
Between common electrode 21, it is not limited thereto.
Relative to embodiment two, the first quarter-wave plate 13 is arranged outside liquid crystal cell in the present embodiment, i.e. the first base
Side of the plate 10 far from liquid crystal layer 30, can reduce making technology difficulty, reduce cost.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
Two is identical, and which is not described herein again.
[example IV]
As shown in Figures 9 to 11, in the liquid crystal display panel and embodiment one (Fig. 3, Fig. 5) that the embodiment of the present invention four provides
Liquid crystal display panel it is essentially identical, the difference is that, in the present embodiment, auxiliary electrode 14 be whole face structure, pixel electricity
Pole 23 is that block structure is distributed in each pixel unit P.Using negative liquid crystal molecule, (dielectric anisotropy is negative liquid crystal layer 30
Liquid crystal molecule).With technological progress, the performance of negative liquid crystal is significantly improved, using also more extensive.The present embodiment
In, as shown in figure 8, original state (in the case of i.e. liquid crystal display device does not apply any voltage), it is negative in liquid crystal layer 30
Property liquid crystal molecule perpendicular to first substrate 10 and the second substrate 20, i.e. negative liquid crystal molecule is in midstance in original state, auxiliary
Vertical electric field can also be formed with pixel electrode 23 by helping electrode 14 that can form vertical electric field with reflecting electrode 25, and it is aobvious to form VA
Show mode.When original state, echo area R and transmission area T are dark-state, i.e. echo area R does not have reflecting effect, and transmission area T does not have
Backlight passes through.
As shown in Figure 10, in reflective condition, auxiliary electrode 14 applies corresponding driving voltage with reflecting electrode 25, is formed and is hung down
The negative liquid crystal molecule deflection that straight electric field E1, echo area R correspond to crystal layer 30 becomes lying posture, is in reflective condition.Pixel electrode
23 do not apply any voltage, and transmission area T is in dark-state.At this point, reflective condition is presented in liquid crystal display panel.
As shown in figure 11, in transmissive state, auxiliary electrode 14 applies corresponding driving voltage with pixel electrode 23, is formed and is hung down
The negative liquid crystal molecule deflection that straight electric field E2, transmission area T correspond to crystal layer 30 becomes lying posture, is in transmissive state.Reflecting electrode
25 do not apply any voltage, and echo area R is in dark-state, use as black matrix (BM).At this point, transmission shape is presented in liquid crystal display panel
State.
Relative to embodiment one, VA display pattern is used in the present embodiment, the leakage of echo area R can be reduced when dark-state
Light effect promotes contrast.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
One is identical, and which is not described herein again.
[embodiment five]
As shown in figure 12, the liquid crystal in liquid crystal display panel and embodiment three (Figure 11) that the embodiment of the present invention four provides
Show that panel is essentially identical, the difference is that, in the present embodiment, the first quarter-wave plate 13 is whole face structure, the second base
Entire second quarter-wave plate 26, the fast and slow axis of the second quarter-wave plate 26 and the second polarizing film 50 are additionally provided on plate 20
The second light transmission shaft X2 be in 45 °.Because using the first quarter-wave plate of whole face 13, need to attach the in 20 side of the second substrate
Two quarter-wave plates 26 are corresponding with the first quarter-wave plate 13, just will not influence the normal display of transmission area T.Certainly,
Two quarter-wave plates 26 need to be corresponded in transmission area T, but will increase etching technics in this way.
In the present embodiment, the first quarter-wave plate 13 is arranged between first substrate 10 and auxiliary electrode 14, and the two or four
/ mono- wave plate 26 is arranged between the second substrate 20 and the second polarizing film 50, certainly, the first quarter-wave plate the 13, the 2nd 4
Other layers can be also arranged in in/mono- wave plate 26 according to actual needs, for example, the first quarter-wave plate 13 is arranged in the first base
Between plate 10 and color blocking layer 11, the second quarter-wave plate 26 be arranged between the second substrate 20 and public electrode 21, not with
This is limited.
Relative to example IV, the first quarter-wave plate 13 in the present embodiment does not need to take additional etching technics,
Etching technics is taken relative to the first quarter-wave plate 13, it is additional to increase production required for the second quarter-wave plate 26
Time is less, increases production efficiency.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
Four is identical, and which is not described herein again.
[embodiment six]
As shown in figure 13, the liquid crystal in liquid crystal display panel and embodiment five (Figure 12) that the embodiment of the present invention six provides
Show that panel is essentially identical, the difference is that, in the present embodiment, the first quarter-wave plate 13 setting first substrate 10 with
Between first polarizing film 40, the second quarter-wave plate 26 is arranged between the second substrate 20 and the second polarizing film 50, certainly, the
Other layers can be also arranged in one quarter-wave plate 13, the second quarter-wave plate 26 according to actual needs, for example, the one or four point
One of wave plate 13 be arranged between first substrate 10 and color blocking layer 11, the second quarter-wave plate 26 setting the second substrate 20 with
Between public electrode 21, it is not limited thereto.
Relative to embodiment five, the first quarter-wave plate 13 is arranged outside liquid crystal cell in the present embodiment, i.e. the first base
Side of the plate 10 far from liquid crystal layer 30, can reduce making technology difficulty, reduce cost.
Those skilled in the art it should be understood that remaining structure and working principle of the present embodiment and embodiment
Five is identical, and which is not described herein again.
The present invention also provides a kind of liquid crystal display devices, including liquid crystal display panel as described above
Herein, the nouns of locality such as related up, down, left, right, before and after be located in figure with the structure in attached drawing with
And structure mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the side
The use of position word should not limit the claimed range of the application.It is also understood that term " first " used herein and " the
Two " etc., it is only used for differentiation nominally, is not limited to quantity and sequence.
The above described is only a preferred embodiment of the present invention, restriction in any form not is done to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification,
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, fall within the scope of protection of the technical scheme of the present invention
Within.
Claims (10)
1. a kind of liquid crystal display panel, including first substrate (10), the second substrate being oppositely arranged with the first substrate (10)
(20) and the liquid crystal layer (30) between the first substrate (10) and the second substrate (20), the second substrate (20) is in court
To on the side of the liquid crystal layer (30) by multi-strip scanning line (1) and multiple data lines (2) mutually insulated intersection limit formed it is multiple
Pixel unit (P), each pixel unit (P) is interior to be equipped with pixel electrode (23) and thin film transistor (TFT) (3), and the pixel electrode (23) is logical
It crosses the thin film transistor (TFT) (3) to be electrically connected with the scan line (1) and data line (2) for closing on the thin film transistor (TFT) (3), first base
Plate (10) is equipped with the first polarizing film (40), which is equipped with the second polarizing film (50), first polarizing film
(40) the second light transmission shaft (X2) of the first light transmission shaft (X1) and second polarizing film (50) is mutually perpendicular to, which is characterized in that should
First substrate (10) be equipped with the first quarter-wave plate (13), the fast and slow axis (X3) of first quarter-wave plate (13) with should
The first light transmission shaft (X1) of first polarizing film (40) is in 45 °, which sets towards the side of the liquid crystal layer (30)
There are reflecting electrode (25), which is equipped with opposite with the reflecting electrode (25) in the side towards the liquid crystal layer (30)
Auxiliary electrode (14), the reflecting electrode (25) at least cover the multi-strip scanning line (1) and the multiple data lines (2) and along
The multi-strip scanning line (1) and multiple data lines (2) direction extend, which corresponds to the area of the reflecting electrode (25)
Domain is echo area (R), and the region which corresponds to each pixel unit (P) is transmission area (T), the echo area (R)
Corresponding liquid crystal layer (30) thickness is the half of corresponding liquid crystal layer (30) thickness of the transmission area (T).
2. liquid crystal display panel according to claim 1, which is characterized in that in the second substrate (20) with the echo area
(R) corresponding region is provided with boss (24), the boss (24) and reflecting electrode (25) pattern having the same, reflection electricity
Pole (25) is covered on the boss (24).
3. liquid crystal display panel according to claim 1, which is characterized in that first quarter-wave plate (13) is pattern
Change structure, first quarter-wave plate (13) and reflecting electrode (25) consistency from top to bottom and pattern having the same.
4. liquid crystal display panel according to claim 1, which is characterized in that first quarter-wave plate (13) is whole face
Structure is additionally provided with entire second quarter-wave plate (26) in the second substrate (20), second quarter-wave plate (26)
Fast and slow axis and second polarizing film (50) the second light transmission shaft (X2) be in 45 °.
5. liquid crystal display panel according to claim 1, which is characterized in that first quarter-wave plate (13) setting exists
Between the first substrate (10) and the auxiliary electrode (14).
6. liquid crystal display panel according to claim 1, which is characterized in that be additionally provided with common electrical in the second substrate (20)
Pole (21), the pixel electrode (23) and the public electrode (21) are located at different layers or the pixel electrode (23) and the common electrical
Pole (21) is located on the same floor.
7. liquid crystal display panel according to claim 6, which is characterized in that the auxiliary electrode (14) is pattern structure,
The auxiliary electrode (14) and the reflecting electrode (25) be Chong Die up and down and pattern having the same.
8. liquid crystal display panel according to claim 1, which is characterized in that the auxiliary electrode (14) is whole face structure, should
Pixel electrode (23) is that block structure is distributed in each pixel unit (P).
9. a kind of driving method, which is characterized in that the driving method is for driving liquid as claimed in any one of claims 1 to 8
LCD panel, the driving method include:
When needing when mirror-reflection, transmission area (T) is dark-state, and echo area (R) is opened to be shown as mirror surface, at this time echo area
(R) liquid crystal molecule in liquid crystal layer (30) is corresponded in lying posture；
It when needing normal display, closes echo area (R), transmission area (T) is normally to penetrate display pattern, at this time echo area (R)
Liquid crystal molecule in interior corresponding liquid crystal layer (30) is in midstance.
10. a kind of liquid crystal display device, which is characterized in that including such as described in any item liquid crystal display panels of claim 1-8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111240076A (en) * | 2020-02-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Transparent display device |
| CN113219716A (en) * | 2021-05-18 | 2021-08-06 | 昆山龙腾光电股份有限公司 | Display panel, display device and driving method |
| CN114935832A (en) * | 2022-05-26 | 2022-08-23 | 京东方科技集团股份有限公司 | Reflective 3D display module, display device and control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020036730A1 (en) * | 2000-07-04 | 2002-03-28 | Heum-Il Baek | Transflective liquid crystal display device and manufacturing method thereof |
| US20040036827A1 (en) * | 2002-08-23 | 2004-02-26 | Kazuhiko Tsuda | Active matrix substrate, liquid crystal display panel of transflective type, and liquid crystal display device of transflective type |
| CN1831608A (en) * | 2005-03-11 | 2006-09-13 | 株式会社日立显示器 | Liquid crystal display device |
| CN1888963A (en) * | 2005-06-27 | 2007-01-03 | Lg.菲利浦Lcd株式会社 | Transflective liquid crystal display device and method of fabricating the same |
| CN1949054A (en) * | 2005-10-14 | 2007-04-18 | 京东方显示器科技公司 | Transflective type liquid crystal display |
| TW200722808A (en) * | 2005-12-02 | 2007-06-16 | Innolux Display Corp | Transelective liquid crystal display |
| CN101498870A (en) * | 2008-01-31 | 2009-08-05 | 上海天马微电子有限公司 | Reflection transmission type LCD device |
| CN101576685A (en) * | 2008-05-05 | 2009-11-11 | 奇美电子股份有限公司 | Liquid crystal display panel and liquid crystal display device comprising same |
-
2019
- 2019-07-22 CN CN201910663399.4A patent/CN110426886B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020036730A1 (en) * | 2000-07-04 | 2002-03-28 | Heum-Il Baek | Transflective liquid crystal display device and manufacturing method thereof |
| US20040036827A1 (en) * | 2002-08-23 | 2004-02-26 | Kazuhiko Tsuda | Active matrix substrate, liquid crystal display panel of transflective type, and liquid crystal display device of transflective type |
| CN1831608A (en) * | 2005-03-11 | 2006-09-13 | 株式会社日立显示器 | Liquid crystal display device |
| CN1888963A (en) * | 2005-06-27 | 2007-01-03 | Lg.菲利浦Lcd株式会社 | Transflective liquid crystal display device and method of fabricating the same |
| CN1949054A (en) * | 2005-10-14 | 2007-04-18 | 京东方显示器科技公司 | Transflective type liquid crystal display |
| TW200722808A (en) * | 2005-12-02 | 2007-06-16 | Innolux Display Corp | Transelective liquid crystal display |
| CN101498870A (en) * | 2008-01-31 | 2009-08-05 | 上海天马微电子有限公司 | Reflection transmission type LCD device |
| CN101576685A (en) * | 2008-05-05 | 2009-11-11 | 奇美电子股份有限公司 | Liquid crystal display panel and liquid crystal display device comprising same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111240076A (en) * | 2020-02-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Transparent display device |
| CN111240076B (en) * | 2020-02-03 | 2022-08-09 | 京东方科技集团股份有限公司 | Transparent display device |
| CN113219716A (en) * | 2021-05-18 | 2021-08-06 | 昆山龙腾光电股份有限公司 | Display panel, display device and driving method |
| CN114935832A (en) * | 2022-05-26 | 2022-08-23 | 京东方科技集团股份有限公司 | Reflective 3D display module, display device and control method |
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