CN206892517U - A kind of width view angle switch liquid crystal display device - Google Patents
A kind of width view angle switch liquid crystal display device Download PDFInfo
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- CN206892517U CN206892517U CN201720823219.0U CN201720823219U CN206892517U CN 206892517 U CN206892517 U CN 206892517U CN 201720823219 U CN201720823219 U CN 201720823219U CN 206892517 U CN206892517 U CN 206892517U
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Abstract
The utility model discloses a kind of width view angle switch liquid crystal display device, including first substrate (11), the second substrate (12) being oppositely arranged with the first substrate (11), and the first liquid crystal layer (13) between the first substrate (11) and the second substrate (12), first liquid crystal layer (13) can realize width view angle switch in left and right directions, simultaneously, the first substrate (11) or the second substrate (12) are being provided with the optical compensation films (110) for reducing above-below direction angular field of view backwards to the side of the first liquid crystal layer (13).The utility model by can the IPS liquid crystal panels side of width view angle switch set up optical compensation films, so as to which width view angle switch can be realized, and narrow viewing angle is realized comprehensive, it is ensured that display content is not spied on.
Description
Technical field
It the utility model is related to display technology field, and in particular to a kind of width view angle switch liquid crystal display device.
Background technology
Liquid crystal display (liquid crystal display, LCD) panel has good image quality, small volume, in light weight, low drive
The advantages of dynamic voltage, low-power consumption, relatively low radiationless and manufacturing cost, occupied an leading position in flat display field.
Present liquid crystal display device gradually develops from narrow viewing angle towards wide viewing angle direction, such as in-plane-switching mode (IPS)
Liquid crystal display device can realize wider visual angle.The design of wide viewing angle cause user can be seen from all directions it is complete and
Distortionless picture.
However, today's society people increasingly focus on protecting the privacy of oneself, have many things and not liking take out and
People shares.In public, it is secrecy always to wish oneself content when seeing the mobile phone or browsing computer.Therefore, it is single
The display of field-of-view mode can not meet the needs of user.In addition to the demand of wide viewing angle, in the field for needing peep-proof
Under conjunction, it is also desirable to can switch or be adjusted to narrow viewing angle pattern by display device.Therefore there is left and right directions width visual angle
Changeable display device, under normal circumstances, upper and lower, left and right directions is all wide viewing angle to this display device, is needing peep-proof
Occasion, left and right directions can be switched to narrow viewing angle pattern, so as to prevent other people from being observed from left and right directions in display device
Hold.
But the changeable display device in left and right directions width visual angle still suffers from the problem of secrecy aspect.Although generally
Always spied on from right and left, but the situation that above-below direction is spied on also occurs in some occasions, for example stand and filled in display
Put side and observe display device from behind and above, at this moment because above-below direction is wide viewing angle, display content can still be spied on.
Utility model content
Based on above mentioned problem, the utility model provides a kind of width view angle switch liquid crystal display device.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of width view angle switch liquid crystal display device, including first substrate, with the first substrate be oppositely arranged second
Substrate and the first liquid crystal layer between the first substrate and the second substrate, first liquid crystal layer is in left and right directions energy
Width view angle switch is realized, the first substrate or the second substrate are provided with for reducing up and down backwards to the side of the first liquid crystal layer
The optical compensation films of direction angular field of view.
In a wherein embodiment, the first substrate is colored filter substrate, and the second substrate is thin film transistor (TFT) battle array
Row substrate.
In a wherein embodiment, the optical compensation films include the crystal that can change polarization of light direction.
In a wherein embodiment, the crystal that can change polarization of light direction is liquid crystal molecule, in be oppositely arranged
The second liquid crystal layer is formed between one base material and the second base material.
In a wherein embodiment, the liquid crystal molecule is A-Plate or C-Plate.
In a wherein embodiment, the angle of inclination of the liquid crystal molecule in second liquid crystal layer is at 40 ° with plane included angle
Between~70 °.
In a wherein embodiment, the optical index of the major axis of the liquid crystal molecule in second liquid crystal layer is less than the light of short axle
Refractive index.
In a wherein embodiment, the liquid crystal molecule in first liquid crystal layer is positivity liquid crystal molecule, the positivity liquid crystal point
The lie low posture substantially parallel with substrate is presented in son, and under wide viewing angle pattern, positivity liquid crystal molecule is substantially parallel with substrate
Plane internal rotation；Under narrow viewing angle pattern, positivity liquid crystal molecule tilts in the lateral direction, realizes the narrow viewing angle on left and right directions,
Optical compensation films realize the narrow viewing angle on above-below direction simultaneously.
In a wherein embodiment, the second substrate is provided with first electrode and second electrode, and the first electrode is public
Electrode, the second electrode are pixel electrode, and the first substrate is provided with the 3rd electrode for being used for controlling view angle switch, regarded
The 3rd electrode is applied in periodic alternating voltage when angle switches, and the cycle of the periodic AC voltage is the display panel
Per the even-multiple of the refresh cycle of frame picture.
In a wherein embodiment, under wide viewing angle pattern, apply direct current common electric voltage, the 3rd electricity in the first electrode
It is extremely upper to apply DC voltage, and the DC voltage applied on the 3rd electrode and the direct current common electrical applied in the first electrode
Potential difference between pressure is less than 1V；Under narrow viewing angle pattern, apply direct current common electric voltage in the first electrode, on the 3rd electrode
Apply the periodic AC voltage, the periodic AC voltage applied on the 3rd electrode applies straight in the first electrode
Fluctuated up and down centered on stream common electric voltage, and the periodic AC voltage applied on the 3rd electrode in the first electrode with applying
Potential difference between the direct current common electric voltage added is 1V~16V, positivity liquid crystal molecule is tilted in the lateral direction.
The beneficial effects of the utility model are：The utility model is by first substrate or second substrate backwards to the first liquid crystal
Optical compensation films are set up in the side of layer, so as to realize width view angle switch, and realize narrow viewing angle comprehensive, it is ensured that aobvious
Show that content is not spied on.
Brief description of the drawings
Fig. 1 is the signal of the utility model embodiment width view angle switch liquid crystal display device side section view in wide viewing angle
Figure.
Fig. 2 is the schematic diagram of width view angle switch liquid crystal display device side section view in narrow viewing angle in Fig. 1.
Fig. 3 is the circuit diagram of the second substrate of width view angle switch liquid crystal display device in Fig. 1.
Fig. 4 is the structural representation of the optical compensation films of width view angle switch liquid crystal display device in Fig. 1.
The schematic diagram of positive section view when Fig. 5 is width view angle switch liquid crystal display device wide viewing angle shown in Fig. 1.
The schematic diagram of positive section view when Fig. 6 is width view angle switch liquid crystal display device narrow viewing angle shown in Fig. 2.
Fig. 7 is the light leak direction schematic diagram (top view) when not setting the liquid crystal display device narrow viewing angle of optical compensation films.
Light leak direction schematic diagram (top view) when Fig. 8 is width view angle switch liquid crystal display device wide viewing angle shown in Fig. 5.
Light leak direction schematic diagram (top view) when Fig. 9 is width view angle switch liquid crystal display device narrow viewing angle shown in Fig. 6.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken,
Below in conjunction with accompanying drawing and preferred embodiment, to according to the utility model proposes width view angle switch liquid crystal display device it is specifically real
Mode, structure, feature and its effect are applied, is described in detail as after.
Relevant of the present utility model foregoing and other technology contents, feature and effects, it is following coordinate with reference to schema compared with
It can be clearly appeared from the detailed description of good embodiment.By the explanation of embodiment, when can be to the utility model up to
The technological means and effect taken into predetermined purpose are able to more go deep into and specific understanding, but institute's accompanying drawings are only to provide
With reference to purposes of discussion, not be used for the utility model is any limitation as.
The present embodiment width view angle switch liquid crystal display device uses IPS patterns, the application Electric Field Mode of IPS liquid crystal panels
It is horizontal, therefore liquid crystal molecule is parallel to substrate and carries out twist motion, does not apply the liquid crystal molecules parallel of electric field in substrate
Orientation, upper and lower two Polarizers configure in 90 degree of intersecting verticals, and polarization direction is orthogonal.The polarizing axis and liquid of bottom Polarizer
The orientation of brilliant molecule is identical, and for incident light via the liquid crystal layer of parallel assortment, straight ahead do not change direct of travel, and due to it is upper partially
Tabula rasa polarization direction is vertical with incident light, therefore injection light can not be by upper strata Polarizer, so lighttight black state is presented.
After applying electric field, liquid crystal molecule can reverse, and fairing liquid crystal molecule rotation and rotated, and then the direction for changing incident light traveling makes
It is identical with upper Polarizer polarization direction to obtain incident light direct of travel, then incident light passes through upper strata Polarizer, and light transmission state is presented.Liquid
Brilliant molecule usual friendship makees twist motion in substrate, does not apply electric field, when liquid crystal molecule distributing is listed in less than inclination angle, the visual angle of black state
Increase, causes the visual angle of light dark ratio also to become wide, so as to have the characteristics of wide viewing angle.
Fig. 1 is that width view angle switch liquid crystal display device side section view in wide viewing angle is shown in the utility model first embodiment
It is intended to (liquid crystal display device lies low in the horizontal plane), Fig. 2 is structural representation of the liquid crystal display device in narrow viewing angle in Fig. 1
Figure.It please join Fig. 1 and Fig. 2, in the present embodiment, liquid crystal display device 10 includes first substrate 11, is oppositely arranged with first substrate 11
Second substrate 12 and the first liquid crystal layer 13 between first substrate 11 and second substrate 12.
In the present embodiment, first substrate 11 is colored filter substrate, and second substrate 12 is thin-film transistor array base-plate.
First substrate 11 is sequentially provided with the polaroid 111 of optical compensation films 110 and first, the second base on the surface backwards to the first liquid crystal layer 13
Plate 12 is provided with the second polaroid 121 on the surface backwards to the first liquid crystal layer 13, the first polaroid 111 and the second polaroid 121
Light transmission shaft (polarization) direction (not shown) is mutually perpendicular to.
In the present embodiment, second substrate 12 is provided with gate insulator 122, insulation on the side towards the first liquid crystal layer 13
Protective layer 123, first electrode 124, dielectric spacer layer 125 and second electrode 126.Gate insulator 122 is formed in second substrate
On the surface of 12 the first liquid crystal layers 13 of direction, insulating protective layer 123 is located on gate insulator 122, and first electrode 124 is formed
On insulating protective layer 123, dielectric spacer layer 125 is formed in first electrode 124, and second electrode 126 is formed in dielectric spacer layer
On 125, but the utility model not limited to this, structure and order between each film layer can be adjusted suitably.
In the present embodiment, first substrate 11 is provided with color blocking layer 112, black matrix (BM) in the side towards the first liquid crystal layer 13
113rd, the first flatness layer 114, the 3rd electrode 115, the 4th electrode 116 and the second flatness layer 117.Color blocking layer 112 and black matrix 113
Formed in first substrate 11 towards on the side of the first liquid crystal layer 13, the first flatness layer 114 covering color blocking layer 112 and black matrix
113, the 3rd electrode 115 is formed on the first flatness layer 114, and the 4th electrode 116 is formed on the 3rd electrode 115 and and black matrix
113 are overlapped, and the 4th electrode 116 is conductively connected with the 3rd electrode 115, and the second flatness layer 117 is formed on the 3rd electrode 115
And the 4th electrode 116 of covering, but the utility model not limited to this, structure and order between each film layer can be adjusted suitably
It is whole.
Color blocking layer 112 includes red (R), green (G), the color blocking material of blue (B) three color, is correspondingly formed the color of red, green, blue three respectively
Sub-pixel (sub-pixel).Black matrix 113 is located between the sub-pixel of the color of red, green, blue three, makes between adjacent sub-pixel
It is spaced from each other by black matrix 113.First flatness layer 114 plays flat be turned into the surface of color blocking layer 112 and black matrix 113
With the second flatness layer 117 plays planarization effect to the surface of the 4th electrode 116.
First electrode 124, the electrode 115 of second electrode 126 and the 3rd can use tin indium oxide (ITO), indium zinc oxide
Etc. (IZO) electrically conducting transparent material is made.Wherein first electrode 124 is public electrode (common electrode), for drawing
Apply common electric voltage (Vcom) when face is shown；Second electrode 126 is pixel electrode (pixel electrode), is formed every
In individual sub-pixel SP (ginseng Fig. 3)；3rd electrode 115 is viewing angle control electrode, for controlling display panel 10 to carry out view angle switch.
In the present embodiment, second electrode 126 is located at the top of first electrode 124, between the two provided with dielectric spacer layer 125,
But the utility model not limited to this.In other embodiments, the position of second electrode 126 and first electrode 124 can mutually be put
Change, may be located in same layer and mutually insulated.
Fig. 3 is the circuit diagram of the second substrate of liquid crystal display device in Fig. 1, please join Fig. 3, also be set on second substrate 12
There are scan line 127 and data wire 128, it is in array that wherein multi-strip scanning line 127, which intersects with a plurality of data lines 128 and limits formation,
Multiple sub-pixel SP (sub-pixel) of arrangement.Pixel electrode (i.e. second electrode 126) and film are provided with each sub-pixel SP
Transistor (TFT) 129, thin film transistor (TFT) 129 are located near the position that scan line 127 is intersected with data wire 128.Each film is brilliant
Body pipe 129 includes grid, source electrode and drain electrode (not shown), scan line 127 wherein corresponding to grid electrical connection, source electrode electrical connection pair
The data wire 128 answered, pixel electrode (i.e. second electrode 126) corresponding to drain electrode electrical connection.
Incorporated by reference to Fig. 1 and Fig. 3, gate insulator 122 is formed in second substrate 12 towards on the side of the first liquid crystal layer 13
And the grid of scan line 127 and thin film transistor (TFT) 129 is covered, insulating protective layer 123 is located on gate insulator 122 and covers number
According to the source electrode and drain electrode of line 128 and thin film transistor (TFT) 129.Dielectric spacer layer 125 be located at first electrode 124 (i.e. public electrode) with
Insulating effect is played between second electrode 126 (i.e. pixel electrode).
In the present embodiment, the liquid crystal molecule in the first liquid crystal layer 13 is positivity liquid crystal molecule, and positivity liquid crystal molecule possesses sound
Answer the advantages of fast (in other embodiments, the liquid crystal molecule in the first liquid crystal layer 13 can be negative liquid crystal molecule).Such as Fig. 1,
Under original state (i.e. display panel 10 does not apply the situation of any voltage), the positivity liquid crystal molecule in the first liquid crystal layer 13 is presented
The lie low posture substantially parallel with substrate 11,12, the long axis direction of positivity liquid crystal molecule and first substrate 11, second substrate 12
Surface is substantially parallel.But in actual applications, the positivity liquid crystal molecule in the first liquid crystal layer 13 and first substrate 11, second substrate
There can be the initial pre-tilt angle of very little between 12, the scope of the initial pre-tilt angle may be less than or equal to 10 degree.
3rd electrode 115 is used to control display panel 10 to enter row wide-narrow view angle switch, by applying on the 3rd electrode 115
Different control voltages, the display panel 10 can switch between wide viewing angle pattern and narrow viewing angle pattern.
It please join Fig. 1, when the application direct current common electric voltage (i.e. DC Vcom) in first electrode 124, and in the 3rd electrode
Also DC voltage, and the DC voltage applied on the 3rd electrode 115 and the direct current applied in first electrode 124 are applied on 115
During potential difference smaller (such as less than 1V) between common electric voltage, due to the biased electrical between the 3rd electrode 115 and first electrode 124
Pressure is smaller, and the angle of inclination of liquid crystal molecule hardly changes, and remains the posture that lies low, by positioned at same substrate (i.e. second
Substrate 12) on pixel electrode (i.e. second electrode 126) and public electrode (i.e. first electrode 124) between the face internal electric field that is formed
Liquid crystal molecule is driven to be realized in the plane internal rotation parallel with substrate 11,12, liquid crystal molecule under stronger face internal electric field effect
Wide viewing angle pattern.
It please join Fig. 2, when the application direct current common electric voltage (i.e. DC Vcom) in first electrode 124, and in the 3rd electrode
Apply periodic alternating voltage on 115, the periodic AC voltage applied on the 3rd electrode 115 is in first electrode 124
Fluctuated up and down centered on the direct current common electric voltage of application, the cycle of the periodic AC voltage draws for every frame of the display panel 10
The even-multiple of the refresh cycle in face.The periodic AC voltage applied on 3rd electrode 115 is straight with applying in first electrode 124
When flowing potential difference larger (the such as larger than 1V) between common electric voltage, due to the 3rd electrode 115 and the second base on first substrate 11
Larger bias voltage be present between first electrode 124 on plate 12, therefore, can be formed between two substrates 11,12 stronger
Vertical electric field (as shown in arrow E in Fig. 2).Due to positivity liquid crystal molecule under electric field action by along parallel to electric field line
Direction rotates, therefore positivity liquid crystal molecule will deflect under vertical electric field effect, make liquid crystal molecule and substrate 11,12 it
Between angle of inclination increase, liquid crystal molecule from the posture changing that lies low be lateral attitude so that it is oblique in the screen of the display panel 10
In apparent direction, the light through liquid crystal molecule is mismatched due to phase delay and upper down polaroid 111,121, light leak is occurred and is showed
As when causing to watch screen from the strabismus direction of display panel 10, the contrast of screen reduces and influences viewing effect, makes to regard
Angle reduces, so as to realize narrow viewing angle pattern.That is, in the present embodiment, applied when to the 3rd electrode 115 on first substrate 11
During plus the periodic AC voltage stated, leniently field-of-view mode switches to narrow viewing angle pattern to the liquid crystal display device.
In other embodiments, the liquid crystal molecule in the first liquid crystal layer 13 can be negative liquid crystal molecule.At this moment, initial
Under state (i.e. display panel 10 does not apply the situation of any voltage), the negative liquid crystal molecule in the first liquid crystal layer 13 is presented and the
The substantially vertical posture that lies low of one substrate 11, second substrate 12, long axis direction and the first substrate 11, second of negative liquid crystal molecule
The surface of substrate 12 is substantially vertical, and the scope of initial pre-tilt angle is 10 degree to 80 degree.For this liquid crystal display device, when
Apply direct current common electric voltage on one electrode 124, and also apply DC voltage on the 3rd electrode 115, and the 3rd electrode 115
Potential difference between the direct current common electric voltage applied on the DC voltage and first electrode 124 of upper application is smaller (such as less than 1V)
When, it is narrow viewing angle pattern；When the application direct current common electric voltage (i.e. DC Vcom) in first electrode 124, and in the 3rd electrode
Apply periodic alternating voltage on 115, the periodic AC voltage applied on the 3rd electrode 115 is in first electrode 124
Fluctuated up and down centered on the direct current common electric voltage of application, the cycle of the periodic AC voltage draws for every frame of the display panel 10
The even-multiple of the refresh cycle in face, and the periodic AC voltage applied on the 3rd electrode 115 in first electrode 124 with applying
Direct current common electric voltage between potential difference larger (such as larger than 1V) when, be wide viewing angle pattern.
In the present embodiment, as shown in Figure 4, Figure 5, optical compensation films 110 include the first base material 1101, second being oppositely arranged
The liquid crystal layer 1103 of base material 1102 and second (Fig. 4 is not drawn into the second base material 1102 to clearly show that the second display layer 1103,
Fig. 5 only draws main element).Wherein, the first base material 1101, the second base material 1102 by polycarbonate composite material form or
It is that poly terephthalic acid class plastics are formed, alignment film (not shown) can be set in inner side, to be carried out to the second liquid crystal layer 1103
Orientation.Liquid crystal molecule in second liquid crystal layer 1103 is smectic, and tilt angle theta is at 40 °~70 ° with plane included angle
Between.In the present embodiment, the liquid crystal molecule in the second liquid crystal layer 1103 is negative liquid crystal molecule, and in the second liquid crystal layer 1103
Liquid crystal molecule major axis optical index be less than short axle optical index.
In an embodiment of the present utility model, the optical compensation films 110 for being used to reduce angular field of view are negative C-
Plate optical compensation films, certainly it will be appreciated by persons skilled in the art that the optical compensation films that are used to reduce angular field of view
110 can also other types optical compensation films, such as negative A-plate optical compensation films.Can also be positivity liquid crystal molecule, even
Liquid crystal molecule can also be not limited to, as long as including the crystal that can change polarization of light direction.
In an embodiment of the present utility model, the thickness of the optical compensation films 110 for being used to reduce angular field of view is
30 μm~70 μm.In addition, the optical compensation films 30 provided by the utility model for being used to reduce angular field of view are made using cloth of coating-type
Technique is made, and the introduction specific and detailed on cloth of coating-type manufacture craft prior art, therefore, repeats no more here.
Certainly it will be appreciated by persons skilled in the art that the optical compensation films 110 for being used to reduce angular field of view are not only limited to
The mode of stating is made, and it can also be made up of film extension technique.
Positive section view when Fig. 5, Fig. 6 are respectively the present embodiment width view angle switch liquid crystal display device wide viewing angle, narrow viewing angle
Schematic diagram.As shown in figure 5, under wide viewing angle pattern, the basic keep level state of liquid crystal molecule in the first liquid crystal layer 13, and the
Liquid crystal molecules tilt certain angle in two liquid crystal layers 1103.And under narrow viewing angle pattern, as shown in fig. 6, the first liquid crystal layer 13
In liquid crystal molecule deflection certain angle, and the liquid crystal molecule in the second liquid crystal layer 1103 still tilts certain angle.At this moment, first
Different phase differences is produced in liquid crystal molecule different visual angles in liquid crystal layer 13, and the optical compensation films 110 can be to different visual angles
On phase difference be modified, to cause liquid crystal display device 10 to realize that narrow viewing angle is shown.It should be noted that in the present embodiment
In, when liquid crystal display device 10 does not need narrow viewing angle display, user need not set the optical compensation films 110.
Fig. 7 is light leak direction schematic diagram when not setting the liquid crystal display device narrow viewing angle of optical compensation films, and Fig. 8 is Fig. 5 institutes
Show light leak direction schematic diagram during width view angle switch liquid crystal display device wide viewing angle, Fig. 9 is width view angle switch liquid shown in Fig. 6
Light leak direction schematic diagram during crystal device narrow viewing angle.Above-mentioned Fig. 7, Fig. 8, Fig. 9 are depression angle, it is seen that
When not setting the liquid crystal display device narrow viewing angle pattern of optical compensation films, left and right directions light leak, but above-below direction not light leak.This programme
When setting up the liquid crystal display device wide viewing angle pattern after optical compensation films, left and right directions not light leak, above-below direction light leak；Narrow viewing angle
During pattern, the equal light leak in direction up and down.
Therefore, after the present embodiment sets up optical compensation films, on the basis of changeable at left and right directions width visual angle, upper bottom left
The right side is comprehensive to realize narrow viewing angle, can ensure that display content is not spied on.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but the utility model is not limited to
Detail in above-mentioned embodiment, can be to technology of the present utility model in range of the technology design of the present utility model
Scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.In above-mentioned specific embodiment party
Each particular technique feature described in formula, in the case of reconcilable, it can be combined by any suitable means.
In order to avoid unnecessary repetition, the utility model no longer separately illustrates to various combinations of possible ways.
Claims (10)
1. a kind of width view angle switch liquid crystal display device, including first substrate (11), it is oppositely arranged with the first substrate (11)
Second substrate (12) and the first liquid crystal layer (13) between the first substrate (11) and the second substrate (12), should
First liquid crystal layer (13) can realize width view angle switch in left and right directions, it is characterised in that the first substrate (11) or this second
Substrate (12) is being provided with the optical compensation films for reducing above-below direction angular field of view backwards to the side of the first liquid crystal layer (13)
(110)。
2. width view angle switch liquid crystal display device according to claim 1, it is characterised in that the first substrate (11) is
Colored filter substrate, the second substrate (12) are thin-film transistor array base-plate.
3. width view angle switch liquid crystal display device according to claim 1 or 2, it is characterised in that the optical compensation films
(110) crystal that can change polarization of light direction is included.
4. width view angle switch liquid crystal display device according to claim 3, it is characterised in that this can change polarization of light
The crystal in direction is liquid crystal molecule, and the second liquid is formed between the first base material (1101) and the second base material (1102) being oppositely arranged
Crystal layer (1103).
5. width view angle switch liquid crystal display device according to claim 4, it is characterised in that the liquid crystal molecule is A-
Plate or C-Plate.
6. width view angle switch liquid crystal display device according to claim 4, it is characterised in that second liquid crystal layer
(1103) angle of inclination of the liquid crystal molecule in be with plane included angle between 40 °~70 °.
7. width view angle switch liquid crystal display device according to claim 4, it is characterised in that second liquid crystal layer
(1103) optical index of the major axis of the liquid crystal molecule in is less than the optical index of short axle.
8. width view angle switch liquid crystal display device according to claim 1, it is characterised in that first liquid crystal layer (13)
Interior liquid crystal molecule is positivity liquid crystal molecule, and the positivity liquid crystal molecule presents basic with first substrate (11), second substrate (12)
The parallel posture that lies low, under wide viewing angle pattern, positivity liquid crystal molecule is substantially flat with first substrate (11), second substrate (12)
Capable plane internal rotation；Under narrow viewing angle pattern, positivity liquid crystal molecule tilts in the lateral direction, and that realizes on left and right directions narrow regards
Angle, while optical compensation films (110) realize the narrow viewing angle on above-below direction.
9. width view angle switch liquid crystal display device according to claim 8, it is characterised in that on the second substrate (12)
Provided with first electrode (124) and second electrode (126), the first electrode (124) is public electrode, and the second electrode (126) is
Pixel electrode, the first substrate (11) is provided with the 3rd electrode (115) for being used for controlling view angle switch, when carrying out view angle switch
3rd electrode (115) is applied in periodic alternating voltage, and the cycle of the periodic AC voltage is the display panel (10)
Every frame picture refresh cycle even-multiple.
10. width view angle switch liquid crystal display device according to claim 9, it is characterised in that under wide viewing angle pattern,
Apply direct current common electric voltage in the first electrode (124), apply DC voltage, and the 3rd electricity on the 3rd electrode (115)
Potential difference between the DC voltage applied on pole (115) and the direct current common electric voltage applied in the first electrode (124) is less than
1V；Under narrow viewing angle pattern, apply direct current common electric voltage in the first electrode (124), apply this week on the 3rd electrode (115)
Phase property alternating voltage, what the periodic AC voltage applied on the 3rd electrode (115) applied in the first electrode (124)
Centered on direct current common electric voltage up and down fluctuate, and the periodic AC voltage applied on the 3rd electrode (115) with this first
Potential difference between the direct current common electric voltage applied on electrode (124) is 1V~16V, makes positivity liquid crystal molecule in the lateral direction
Tilt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720823219.0U CN206892517U (en) | 2017-07-07 | 2017-07-07 | A kind of width view angle switch liquid crystal display device |
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|---|---|---|---|
| CN201720823219.0U CN206892517U (en) | 2017-07-07 | 2017-07-07 | A kind of width view angle switch liquid crystal display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994087A (en) * | 2019-04-09 | 2019-07-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and its driving method |
| CN111458911A (en) * | 2019-01-18 | 2020-07-28 | 中强光电股份有限公司 | Display device and light source module thereof |
-
2017
- 2017-07-07 CN CN201720823219.0U patent/CN206892517U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458911A (en) * | 2019-01-18 | 2020-07-28 | 中强光电股份有限公司 | Display device and light source module thereof |
| CN111458911B (en) * | 2019-01-18 | 2024-03-19 | 中强光电股份有限公司 | Display device and light source module thereof |
| CN109994087A (en) * | 2019-04-09 | 2019-07-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and its driving method |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |