CN108267902A - Display device and method for switching display visual angle thereof - Google Patents
Display device and method for switching display visual angle thereof Download PDFInfo
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- CN108267902A CN108267902A CN201810201766.4A CN201810201766A CN108267902A CN 108267902 A CN108267902 A CN 108267902A CN 201810201766 A CN201810201766 A CN 201810201766A CN 108267902 A CN108267902 A CN 108267902A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000000007 visual effect Effects 0.000 title claims description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 200
- 239000000758 substrate Substances 0.000 claims description 17
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 241000209094 Oryza Species 0.000 claims 3
- 235000007164 Oryza sativa Nutrition 0.000 claims 3
- 235000009566 rice Nutrition 0.000 claims 3
- 230000000694 effects Effects 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 238000003491 array Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000010190 G1 phase Effects 0.000 description 1
- 102100040678 Programmed cell death protein 1 Human genes 0.000 description 1
- 101710089372 Programmed cell death protein 1 Proteins 0.000 description 1
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
Classifications
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
-
- 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
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- 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
Abstract
A display device comprises a light source module, a display module and an optical gate. The light source module comprises a plurality of first color light sources, a plurality of second color light sources and a plurality of third color light sources. The display module comprises a plurality of first color sub-pixels, a plurality of second color sub-pixels and a plurality of third color sub-pixels. The optical shutter comprises a plurality of first optical shutter sub-pixels corresponding to the first color light source and the first color sub-pixels, a plurality of second optical shutter sub-pixels corresponding to the second color light source and the second color sub-pixels, and a plurality of third optical shutter sub-pixels corresponding to the third color light source and the third color sub-pixels. In addition, a method for switching the display viewing angle of the display device is also provided.
Description
Technical field
The present invention relates to a kind of electronic device and its switch the method at visual angle, and more particularly to a kind of display device and its cut
The method for changing display view angle.
Background technology
In recent years in the Related Research Domain of display, the peep-proof function of display is gradually taken seriously.It is desirable to make
While with Related product, personal privacy can also be protected, therefore more and more plus the demand of peep-proof function for display.
The scope of application of common peep-proof display is also sent out by laptop, LCD monitor towards portable consumer type video and audio product
Exhibition, such as mobile phone, tablet.In order to realize peep-proof function, the way of common peep-proof design is in outside the front of display
Add peep-proof piece.Peep-proof piece can have the display light that wide-angle is covered using the micro-structure of shutter shape, so that display
Image can be normally shown under certain angular field of view near front viewing angle or its and can not under the strabismus visual angle in larger angle
Clearly appear from display image.
However, due to the cycle design of micro-structure in peep-proof piece, in some cases, micro-structure may be in peep-proof piece
The period of the display pixel of display generates interference, and then mole ripple (Moir é are formed on the display picture of display
pattern).User generally requires to select and buy peep-proof piece according to the model (or resolution ratio) of different displays.Peep-proof
The peep-proof angle of piece is often fixed value, can not be adjusted, this causes ease of use to be restricted.
Invention content
The present invention provides a kind of display device and its switches the method for display view angle, can be not required to by manual switching and additional
PH effect structure is configured and reaches narrow viewing angle effect.
One embodiment of the invention provides a kind of display device, including light source module, display module and optical gate.Light source die
Block includes multiple first color light sources, multiple second color light sources and multiple third color light sources.Display module includes multiple first colors
Sub-pixel, multiple second sub-pixels and multiple third sub-pixels, wherein every one first sub-pixels, every one second dice
The width of pixel and each third sub-pixels is P microns.Optical gate includes multiple first optical gate sub-pixels, multiple second optical gates
Sub-pixel and multiple third optical gate sub-pixels.Multiple first optical gate sub-pixels correspond to the first color light source and the first dice respectively
Pixel.Multiple second optical gate sub-pixels correspond to the second color light source and the second sub-pixels respectively.Multiple third optical gate sub-pixels
Third color light source and third sub-pixels are corresponded to respectively.Wherein, the first adjacent optical gate sub-pixel, the second optical gate sub-pixel and
Third optical gate sub-pixel and corresponding first sub-pixels, the second sub-pixels and third sub-pixels form first unit.Separately
Outer adjacent the first optical gate sub-pixel, the second optical gate sub-pixel and third optical gate sub-pixel and corresponding first sub-pixels, the
Two sub-pixels and third sub-pixels form the second unit adjacent with first unit.The first optical gate picture in first unit
Element and the most short diagonal line distance of the first sub-pixels form angle, θ 2 with normal direction.The first optical gate in first unit
The shortest route distance and normal direction shape of pixel the first sub-pixels corresponding with the first optical gate sub-pixel in second unit
Angled θ 3.Optical gate is with display module at a distance of T microns.One user is θ 1 relative to the visual angle of normal direction.In first unit
The first sub-pixels and second unit in the distances of the first sub-pixels be P × n microns, n=2 or 3.Display device accords with
It closes：P/tan[sin-1(sinθ1/1.5)]≦T≦P×n/tan41.8°；Tan θ 2=P/T；And tan θ 3=P × n/T.
One embodiment of the invention provides a kind of method for switching display view angle, includes the following steps：Above-mentioned show is provided
Showing device.Wide angle mode is performed, is included the following steps wherein performing wide angle mode：Drive the first color light source, the second coloured light
Source and third color light source.Drive the first optical gate sub-pixel, the second optical gate sub-pixel and third optical gate sub-pixel；And driving
Display module.Narrow viewing angle pattern is performed, is included the following steps wherein performing narrow viewing angle pattern：The first color light source is driven without driving
Second color light source and third color light source, the first optical gate sub-pixel of driving is without driving the second optical gate sub-pixel and third optical gate
Sub-pixel drives the first sub-pixels of first unit and does not drive the first sub-pixels of second unit.
Another embodiment of the present invention provides a kind of method for switching display view angle, includes the following steps：Offer is similar to
Above-mentioned display device.Wherein display module further includes multiple white sub-pixels.Optical gate further includes multiple 4th optical gate sub-pixels.
Multiple 4th optical gate sub-pixels correspond to white sub-pixels respectively.Wherein, the first adjacent optical gate sub-pixel, the second optical gate picture
Element, third optical gate sub-pixel and the 4th optical gate sub-pixel and corresponding first sub-pixels, the second sub-pixels, third dice picture
Element and white sub-pixels form first unit.In addition the first adjacent optical gate sub-pixel, the second optical gate sub-pixel, third optical gate
Pixel and the 4th optical gate sub-pixel and corresponding first sub-pixels, the second sub-pixels, third sub-pixels and the sub- picture of white
Element forms second unit.Wide angle mode is performed, is included the following steps wherein performing wide angle mode：Drive the first color light source,
Second color light source and third color light source, the first optical gate sub-pixel of driving, the second optical gate sub-pixel, third optical gate sub-pixel and the
Four optical gate sub-pixels；And driving display module.Narrow viewing angle pattern is performed, is included the following steps wherein performing narrow viewing angle pattern：
The first color light source is driven without driving the second color light source and third color light source.The first optical gate sub-pixel is driven without driving second
Optical gate sub-pixel and third optical gate sub-pixel.It drives the first sub-pixels of first unit and does not drive first unit
White sub-pixels.
It can be by controlling light source module, display module and the driving condition of optical gate based on above-mentioned, of the invention display device
And the light beam that light source module is controlled to be sent out.
An object of the present invention reaches the function of switching visual angle by manual switching to be not required to.
An object of the present invention achievees the effect that narrow viewing angle to be not required to by manual switching.
An object of the present invention for be not required to by be additionally configured pH effect structure reach switching visual angle function.
An object of the present invention achievees the effect that narrow viewing angle to be not required to by pH effect structure is additionally configured.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed that attached drawing is coordinated to make
Carefully it is described as follows.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of the display device of one embodiment of the invention.
The display device that Fig. 2 is Fig. 1 is in the diagrammatic cross-section for performing narrow viewing angle pattern.
Fig. 3 is the positive apparent direction of display device of Fig. 1 and view directions schematic diagram.
Fig. 4 is the schematic diagram of the light source module of the display device of Fig. 1.
Fig. 5 is the schematic diagram of the optical gate of the display device of Fig. 1.
Fig. 6 is the display module of display device of Fig. 1 and the diagrammatic cross-section of optical gate.
Fig. 7 is the display module of display device of another embodiment of the present invention and the diagrammatic cross-section of optical gate.
Fig. 8 is the schematic top plan view of the display module of one embodiment of the invention.
Fig. 9 is the schematic top plan view of the display module of another embodiment of the present invention.
Reference sign：
100、100A：Display device
110：Light source module
120、120’、120A、120B：Display module
122、122_1、122_2、122A、122B：First sub-pixels
124、124_1、124_2、124A、124B：Second sub-pixels
126、126_1、126_2、126A、126B：Third sub-pixels
128_1、128_2、128A、128B：White sub-pixels
130、130’：Optical gate
132、132_1、132_2：First optical gate sub-pixel
132E2：First optical gate pixel electrode
134、134_1、134_2：Second optical gate sub-pixel
134E2：Second optical gate pixel electrode
136、136_1、136_2：Third optical gate sub-pixel
136E2：Third optical gate pixel electrode
138_1、138_2：4th optical gate sub-pixel
140：First structure of polarized light
150：Second structure of polarized light
160：Third structure of polarized light
CF、CF’：Colour light filtering structure
R：Red filter pattern
G：Green filter pattern
B：Blue filter pattern
D1：Normal direction
D2、D3、D4：Direction
G1、G1’：First unit
G2、G2’：Second unit
LC1、LC2：Display medium
RP：First sub-pixels electrode
GP：Second sub-pixels electrode
BP：Third sub-pixels electrode
E1：Common electrode
PD、PD’：Display pixel
PDA：Display pixel array
PS：Light shutter pixel
PSA：Light shutter pixel array
SB1：First substrate
SB2：Second substrate
SB3：Third substrate
SB4：Tetrabasal
SE：Light-emitting surface
LB0：Light beam
LB1、LB2、LB3、LB4、LB5：First color beam
P：Width
T、L1、L2：Distance
θ1、θ2、θ3：Angle
Specific embodiment
Fig. 1 is the diagrammatic cross-section of the display device of one embodiment of the invention.The display device that Fig. 2 is Fig. 1 is narrow in execution
The diagrammatic cross-section of field-of-view mode.Fig. 3 is the positive apparent direction of display device of Fig. 1 and view directions schematic diagram.Fig. 4 is Fig. 1's
The schematic diagram of the light source module of display device.Fig. 5 is the schematic diagram of the optical gate of the display device of Fig. 1.It please refers to Fig.1 to Fig. 5,
In the present embodiment, display device 100 includes light source module 110, display module 120, optical gate 130, the first structure of polarized light 140, the
Two structure of polarized light 150 and third structure of polarized light 160.Display device 100 is, for example, to provide display beams from light-emitting surface SE.It is aobvious
Show that the normal direction D1 of module 120 and the direction of transfer D2 of display beams have the visual angle of angle theta 1, i.e. display device 100.Light
There is a distance T (micron), the specific definition of distance T is in rear explanation between lock 130 and display module 120.
It please refers to Fig.4, light source module 110 includes multiple first color light sources 112, multiple second color light sources 114 and multiple
Third color light source 116.In the present embodiment, the first color light source 112, the second color light source 114 and third color light source 116 are for example distinguished
For red-light source, green-light source and blue light source.In the present embodiment, light source module 110 may be, for example, a color-sequential (Field
Sequential Color, FSC) backlight module, wherein the first color light source 112, the second color light source 114 and third color light source 116
It can sequentially be driven and be lighted, but the present invention is not limited thereto.In other words, field color sequential backlight module be allow red, green with it is blue
Color light source is switched fast (switch), since switching time is shorter than the time that human eye vision can differentiate, by the vision of human eye
Residual effect, with regard to color blending effect can be generated.
Display module 120 includes multiple first sub-pixels 122, multiple second sub-pixels 124 and multiple third colors
Sub-pixel 126, wherein every one first sub-pixels 122, every one second sub-pixels 124 and each third sub-pixels 126
Width P (micron) be same widths.Display module 120 includes first substrate SB1, the display being configured on first substrate SB1
Pel array PDA and second substrate SB2, display pixel array PDA is between first substrate SB1 and second substrate SB2.It is aobvious
Showing pel array PDA is made of multiple display pixel PD comprising display medium LC1 and colour light filtering structure CF.
Display medium LC1 may include liquid crystal molecule or other media applicatory.In the following example of the present invention
Display medium be with liquid crystal molecule as example, but not limited to this.Furthermore the liquid crystal molecule in the following example of the present invention,
Preferably, be with can by horizontal component of electric field rotate or switch liquid crystal molecule either can by vertical electric field rotate or switch liquid crystal
Molecule is example, but not limited to this.In other words, in this example it is shown that module 120 is LCD MODULE.
Colour light filtering structure CF is, for example, by multiple red filter pattern R, multiple green filter pattern G and multiple blues
The colored filter that filter pattern B is formed.First sub-pixels 122 include red filter pattern R, display medium LC1 and the
Pixel electrode RP of the same colour, the second sub-pixels 124 include green filter pattern G, display medium LC1 and the second sub-pixels electricity
Pole GP, third sub-pixels 126 include blue filter pattern B, display medium LC1 and third sub-pixels electrode B P, and sequentially
The first sub-pixels 122, the second sub-pixels 124 and the third sub-pixels 126 of arrangement can form single a display pixel
PD。
Fig. 1, Fig. 4 and Fig. 5 are please also refer to, optical gate 130 includes multiple first optical gate sub-pixels 132, multiple second optical gates
Sub-pixel 134 and multiple third optical gate sub-pixels 136.First optical gate sub-pixel 132 includes common electrode E1, display medium
LC2 and the first optical gate pixel electrode 132E2, the second optical gate sub-pixel 134 include common electrode E1, display medium LC2 and the
Two optical gate pixel electrode 134E2, third optical gate sub-pixel 136 include common electrode E1, display medium LC2 and third optical gate
Pixel electrode 136E2.First optical gate sub-pixel 132 corresponds to the first color light source 112 and the first sub-pixels 122 respectively, and second
Optical gate sub-pixel 134 corresponds to the second color light source 114 and the second sub-pixels 124 respectively and third optical gate sub-pixel 136 divides
Third color light source 116 and third sub-pixels 126 are not corresponded to.Optical gate 130 includes third substrate SB3, light shutter pixel array PSA
And tetrabasal SB4, light shutter pixel array PSA are located between third substrate SB3 and tetrabasal SB4.Light shutter pixel array
PSA is made of multiple light shutter pixel PS comprising display medium LC2.
In the present embodiment, optical gate 130 is a liquid crystal photic gate, and optical gate 130 can not have colour light filtering structure CF.And first
Optical gate sub-pixel 132, the second optical gate sub-pixel 134 and the citing of third optical gate sub-pixel 136 are overlapped respectively and corresponding to first
Sub-pixels 122, the second sub-pixels 124 and third sub-pixels 126.
First structure of polarized light 140 is between the first optical gate sub-pixel 132 and light source module 110.Second structure of polarized light 150
Between the first sub-pixels 122 and the first optical gate sub-pixel 132.And the first sub-pixels 122 are located at third structure of polarized light
160 and first between optical gate sub-pixel 132.In the present embodiment, the first structure of polarized light 140, the second structure of polarized light 150 and
Third structure of polarized light 160 is, for example, polaroid or waits structure of polarized light, the present invention suitable for respectively passing through the light of specific polarization state
It does not limit.
Please continue to refer to Fig. 1, Fig. 4 and Fig. 5, under wide angle mode, drive light source module 110 the first color light source 112,
Second color light source 114 and third color light source 116 simultaneously to provide light beam simultaneously, all optical gate sub-pixels 132,134 in optical gate 130
And 136 also to drive and drive simultaneously display module 120 so that the first color light source 112, the second color light source 114 and third color
The light beam LB0 that light source 116 is provided can pass through the sub-pixel in light shutter pixel PS and display pixel PD.
It please refers to Fig.2, narrow viewing angle pattern is switched to from wide angle mode, perform narrow viewing angle pattern, the of light source module 110
Light source 112 of the same colour, the second color light source 114 and third color light source 116 are according to Timing driver, and the first optical gate sub-pixel in optical gate 130
132nd, the second optical gate sub-pixel 134 and third optical gate sub-pixel 136 are also according to Timing driver.For example, when driving light source die
During the first color light source 112 of block 110, the first optical gate sub-pixel 132 is driven, and do not drive the second color light source 114, third color light source
116th, the second optical gate sub-pixel 134 and third optical gate sub-pixel 136.When the second color light source 114 for driving light source module 110,
Drive the second optical gate sub-pixel 134, and do not drive the first color light source 112, third color light source 116, the first optical gate sub-pixel 132 and
Third optical gate sub-pixel 136.When the third color light source 116 for driving light source module 110, driving third optical gate sub-pixel 136, and
The first color light source 112, the second color light source 114, the first optical gate sub-pixel 132 and the second optical gate sub-pixel 134 are not driven.In other words
It says, the first optical gate sub-pixel 132, the second optical gate sub-pixel 134 and third optical gate sub-pixel 136 in optical gate 130 correspond to
The first color light source 112, the second color light source 114 and third color light source 116 in light source module 110 are separately turned on according to sequential.
Therefore, for driving the first color light source 112 and the first optical gate sub-pixel 132, the first color light source is sent out not
First color beam LB1, LB2, LB3, LB4, LB5 transmission path with transmission path is as described below.First color beam LB1 is sequentially passed
It passs through the first optical gate sub-pixel 132 and the first sub-pixels 122 and is projected from light-emitting surface SE.First LB2, LB3 points of color beam
132 to the second sub-pixels 124 of the first optical gate sub-pixel and third sub-pixels 126 are not passed through, with by the second dice picture
Element 124 and third sub-pixels 126 are filtered out or are reflected.First color beam LB4, LB5 passes through the second optical gate sub-pixel respectively
134 and 136 to the second structure of polarized light 150 of third optical gate sub-pixel, then it can be because of the second optical gate sub-pixel 134 and third optical gate picture
Element 136 is not driven to modulate the polarization direction of first color beam LB4, LB5 and is filtered out by the second structure of polarized light 150, such as Fig. 2 institutes
Show.Thus, may be such that first color beam LB2, LB3, LB4, LB5 with large viewing will not be projected from light-emitting surface SE,
And then display device 100 is made to be not required to reach narrow viewing angle effect by manual switching and/or additional configuration pH effect structure.
Fig. 6 is the display module of display device of Fig. 1 and the diagrammatic cross-section of optical gate.Fig. 3 and Fig. 6 is please also refer to, is
Facilitate explanation, Fig. 6 only shows display pixel PD and light shutter pixel PS.In the present embodiment, continuous compact arranged first light
Lock sub-pixel 132_1, the second optical gate sub-pixel 134_1 and continuous compact arranged third optical gate sub-pixel 136_1 and corresponding
First sub-pixels 122_1, the second sub-pixels 124_1 and third sub-pixels 126_1 form a first unit G1.And in addition
Continuous close-packed arrays the first optical gate sub-pixel 132_2, the second optical gate sub-pixel 134_2 and third optical gate sub-pixel 136_2 and right
The first sub-pixels 122_2, the second sub-pixels 124_2 and third sub-pixels 126_2 answered is formed and first unit G1 phases
An adjacent second unit G2.Wherein, epimere illustrate described in " adjacent " can be " adjacent to each other " or " continuous close-packed arrays ",
Invention is not limited to this.In other words, each unit G1 or G2 contains corresponding display pixel PD and light shutter pixel
PS, and corresponding display pixel PD and light shutter pixel PS is another unit of adjacent this element in adjacent this element.
In this example it is shown that device 100 meets following condition formulae：
P/tan[sin-1(sinθ1/1.5)]≦T≦P×n/tan41.8°；
Tan θ 2=P/T；And
Tan θ 3=P × n/T.
Wherein,
P is the width of first, second and third sub-pixels 122_1,122_2,124_1,124_2,124_1,126_2
(micron)；
θ 1 is visual angle angle of the user relative to normal direction D1；
T is between the upper surface of the tetrabasal SB4 of optical gate 130 and the lower surface of the first substrate SB1 of display module 120
Distance (micron)；
N is the sub-pixel quantity between two the first adjacent sub-pixels 122_1,122_2；
θ 2 is the first optical gate pixel electrode 132E2 and first of the first optical gate sub-pixel 132_1 in first unit G1
The angle of the direction D3 and normal direction D1 of the most short diagonal line distance L1 of the filter pattern of sub-pixels 122_1, normal side
It is perpendicular to the direction of light-emitting surface SE to D1；And
θ 3 is the first optical gate pixel electrode 132E2 and second of the first optical gate sub-pixel 132_1 in first unit G1
The shortest route distance of the filter pattern of the corresponding first sub-pixels 122_2 of the first optical gate sub-pixel 132_2 in unit G2
The angle of the direction D4 and normal direction D1 of L2.
For example, in the present embodiment, n values are 2, and the second sub-pixels 124_1 and third color of first unit G1
Sub-pixel 126_1 is the first sub-pixels of the first sub-pixels 122_1 and second unit G2 positioned at first unit G1
Between 122_2.Therefore, display device 100 meets P/tan [sin-1(sinθ1/1.5)]≦T≦2P/tan41.8°；Tan θ 2=
P/T；And tan θ 3=2P/T.
By above-mentioned condition formula it is found that the display device 100 of the present embodiment can be by adjusting first, second and third dice picture
The width value P of the element or distance value T of adjustment optical gate 130 and display module 120, and the display light for being sent out display device 100
Beam can only pass through the display sub-pixel of same unit and optical gate sub-pixel.And pass through the display sub- picture of a wherein unit
The display beams of element and the optical gate sub-pixel of adjacent cells, then because the angle conditions of incident optical gate sub-pixel generate total reflection now
As.Thus, can prevent display beams from passing through from the optical gate sub-pixel of adjacent cells, and then by the visual angle of display device 100
Control is in θ 1 hereinafter, to achieve the effect that narrow viewing angle.
Fig. 7 is the display module of display device of another embodiment of the present invention and the diagrammatic cross-section of optical gate.Please refer to figure
7, the display device 100A of the present embodiment are similar to the display device 100 of Fig. 6, and the difference lies in the present embodiment for the two
In, each in first unit G1 ' and second unit G2 ' further includes the white sub-pixels 128_ in display pixel PD
1 and the 4th optical gate sub-pixel 138_1 in light shutter pixel PS.The first sub-pixels 122_2 of second unit G2 ' is extremely
Third sub-pixels 126_2 is the sub- picture of white of the white sub-pixels 128_1 and second unit G2 ' positioned at first unit G1 '
Between plain 128_2.
In the present embodiment, single a display pixel PD ' by the first sub-pixels 122_1, the second sub-pixels 124_1,
Third sub-pixels 126_1 and white sub-pixels 128_1 are formed, and in these sub-pixels corresponding colour light filtering structure portion
It is respectively red filter pattern, green filter pattern, blue filter pattern and transparent pattern.
Embodiment compared to Fig. 6, the present embodiment are driving the first optical gate sub-pixel 132_ when performing wide angle mode
1st, 132_2, second optical gate sub-pixel 134_1,134_2 and third optical gate sub-pixel 136_1,136_2 while, also drive the 4th
Optical gate sub-pixel 138_1,138_2.And narrow viewing angle pattern is switched under wide angle mode, narrow viewing angle pattern is performed, is being driven
The first sub-pixels 122_2 of second unit G2 ' is also driven while the first sub-pixels 122_1 of first unit G1 ', and
The white sub-pixels 128_1 of first unit G1 is not driven.In addition, in the present embodiment, the 4th optical gate can not driven further sub
Pixel 138_1, but the present invention is not limited thereto.
Therefore, in the present embodiment, n values are 3, and the second sub-pixels 124_1 of first unit G1 ' and third dice picture
Plain 126_1 is the first sub-pixels 122_2 of the first sub-pixels 122_1 and second unit G2 ' positioned at first unit G1 '
Between.Display device 100A meets P/tan [sin-1(sinθ1/1.5)]≦T≦3P/tan41.8°；Tan θ 2=P/T；And
Tan θ 3=3P/T.
By above-mentioned condition formula it is found that first, second and third sub-pixels for being identical to preceding embodiment width P or
Between optical gate 130 ' and display module 120 ' under the condition of distance value T, the display device 100A of the present embodiment can be provided more preferably
Narrow viewing angle effect.
Fig. 8 is the schematic top plan view of the display module of one embodiment of the invention.Fig. 8 is please referred to, in this example it is shown that
The first sub-pixels 122A of each display pixel PD in module 120A, the second sub-pixels, third sub-pixels 126A and
Length of the length of white sub-pixels 128A for a display pixel PD, width of the width for the display pixel PD of a quarter,
And arranged in sequence forms display pixel PD in a manner that long side is adjacent edge, and the length and width of display pixel PD is exemplified as phase
Deng.Therefore, when performing narrow viewing angle pattern, adjacent transmission region in the horizontal direction will be separated by 3/4ths display pixel
PD long, and the display pixel PD long that the length of each transmission region is a quarter.
Fig. 9 is the schematic top plan view of the display module of another embodiment of the present invention.Fig. 9 is please referred to, in the present embodiment, is shown
Show module 120B be similar to Fig. 8 display module 120A, both the difference is that, each display pixel in display module 120B
The first sub-pixels 122B of PD, the second sub-pixels 124B, third sub-pixels 126B and white sub-pixels 128B length
It is respectively the length and width of half of display pixel PD with width, and with 2 × 2 array way arrangement form display pixel PD,
The length and width of display pixel PD is exemplified as equal.In addition, the present embodiment is further in adjacent display pixel PD
Two rows in array or two row are interconnected as shown in Figure 9.Therefore, when performing narrow viewing angle pattern, in the horizontal direction
Adjacent transmission region will be separated by 3/2nds display pixel PD long, and the display picture that the length of each transmission region is half
Plain PD long.Adjacent transmission region in vertical direction will be separated by half display pixel PD long, and each transmission region
Length is the display pixel PD long of half.
In conclusion the display device of the present invention can be by controlling light source module, display module and the driving condition of optical gate
And the light beam that light source module is controlled to be sent out.Therefore, can be not required to by manual switching and/or additional configuration pH effect structure and
Reach switching visual angle, and then reach narrow viewing angle effect.
Although the present invention is disclosed with embodiment, however, it is not to limit the invention, technology in any technical field
Personnel, without departing from the spirit and scope of the invention, when can make a little variation and retouching, therefore protection scope of the present invention is worked as
Subject to claim.
Claims (11)
1. a kind of display device, including：
One light source module, including multiple first color light sources, multiple second color light sources and multiple third color light sources；
One display module is formed including multiple first sub-pixels, multiple second sub-pixels and multiple third sub-pixels
In on a substrate, wherein each of first sub-pixels, each of second sub-pixels and each of third dice
The width of pixel is P microns；And
One optical gate, including：
Multiple first optical gate sub-pixels correspond to those first color light sources and those first sub-pixels respectively；
Multiple second optical gate sub-pixels correspond to those second color light sources and those second sub-pixels respectively；And
Multiple third optical gate sub-pixels correspond to those third color light sources and those third sub-pixels respectively,
Wherein：
Adjacent the first optical gate sub-pixel, the second optical gate sub-pixel and the third optical gate sub-pixel and corresponding first color
Sub-pixel, second sub-pixels and the third sub-pixels form a first unit；
In addition first optical gate of this adjacent sub-pixel, the second optical gate sub-pixel and the third optical gate sub-pixel and it is corresponding this
One sub-pixels, second sub-pixels and the third sub-pixels form a second unit adjacent with the first unit；
One user is θ 1 relative to the visual angle of a normal direction of the substrate；
The direction of the first optical gate sub-pixel in the first unit and the most short diagonal line distance of first sub-pixels with
The normal direction forms angle, θ 2；
The first optical gate sub-pixel in the first unit it is corresponding with the first optical gate sub-pixel in the second unit this
The direction of the shortest route distance of one sub-pixels forms angle, θ 3 with the normal direction；
The optical gate is with the display module at a distance of T microns；
The distance of first sub-pixels and first sub-pixels in the second unit in the first unit is micro- for P × n
Rice, n=2 or 3；And
The display device meets：
(1)P/tan[sin-1(sinθ1/1.5)]≦T≦P×n/tan41.8°；
(2) tan θ 2=P/T；And
(3) tan θ 3=P × n/T.
2. display device as described in claim 1, wherein n=2, second sub-pixels and the third color of the first unit
Sub-pixel is between first sub-pixels of the first unit and first sub-pixels of the second unit.
3. each in display device as described in claim 1, wherein n=3, the first unit and the second unit is gone back
It is located in the display module including a white sub-pixels and one the 4th optical gate sub-pixel is located in the optical gate, the second unit
First sub-pixels, second sub-pixel and the third sub-pixels be positioned at the first unit the white sub-pixels with
And between the white sub-pixels of the second unit.
4. display device as described in claim 1, further includes：
One first structure of polarized light, between those the first optical gate sub-pixels and the light source module；
One second structure of polarized light, between those first sub-pixels and those the first optical gate sub-pixels；And
One third structure of polarized light, wherein those first sub-pixels are located at the third structure of polarized light and those the first optical gate pictures
Between element.
5. display device as described in claim 1, the wherein display module are a LCD MODULE, which is a liquid crystal
Optical gate.
6. a kind of method for switching display view angle, including：
A display device is provided, which includes：
One light source module, including multiple first color light sources, multiple second color light sources and multiple third color light sources；
One display module is formed including multiple first sub-pixels, multiple second sub-pixels and multiple third sub-pixels
In on a substrate；And
One optical gate, including：
Multiple first optical gate sub-pixels correspond to those first color light sources and those first sub-pixels respectively；
Multiple second optical gate sub-pixels correspond to those second color light sources and those second sub-pixels respectively；And
Multiple third optical gate sub-pixels correspond to those third color light sources and those third sub-pixels respectively,
Wherein：
Adjacent the first optical gate sub-pixel, the second optical gate sub-pixel and the third optical gate sub-pixel and corresponding first color
Sub-pixel, second sub-pixels and the third sub-pixels form a first unit；
In addition first optical gate of this adjacent sub-pixel, the second optical gate sub-pixel and the third optical gate sub-pixel and it is corresponding this
One sub-pixels, second sub-pixels and the third sub-pixels form a second unit adjacent with the first unit；
A wide angle mode is performed, including：
Drive those first color light sources, those second color light sources and those third color light sources；
Drive those the first optical gate sub-pixels, those the second optical gate sub-pixels and those third optical gate sub-pixels；And
Drive the display module；And
A narrow viewing angle pattern is performed, including：
Those first color light sources are driven without driving those second color light sources and those third color light sources；
Those the first optical gate sub-pixels are driven without driving those the second optical gate sub-pixels and those third optical gate sub-pixels；
Drive first sub-pixels of the first unit；And
First sub-pixels of the second unit are not driven.
7. the method for switching display view angle as claimed in claim 6, wherein：
One user is θ 1 relative to the visual angle of a normal direction of the substrate；
The width of each first sub-pixels, each second sub-pixels and each third sub-pixels is P microns,
Direction and the method for the first optical gate sub-pixel with the most short diagonal line distance of first sub-pixels in the first unit
Line direction forms angle, θ 2；
The first optical gate sub-pixel in the first unit it is corresponding with the first optical gate sub-pixel in the second unit this
The direction of the shortest route distance of one sub-pixels forms angle, θ 3 with the normal direction；
The optical gate is with the display module at a distance of T microns；
The distance of first sub-pixels and first sub-pixels in the second unit in the first unit is micro- for P × n
Rice, n=2；And
The display device meets：
(1)P/tan[sin-1(sinθ1/1.5)]≦T≦P×n/tan41.8°；
(2) tan θ 2=P/T；And
(3) tan θ 3=P × n/T.
8. a kind of method for switching display view angle, including：
A display device is provided, which includes：
One light source module, including multiple first color light sources, multiple second color light sources and multiple third color light sources；
One display module, including multiple first sub-pixels, multiple second sub-pixels, multiple third sub-pixels and multiple
White sub-pixels are formed on a substrate；And
One optical gate, including：
Multiple first optical gate sub-pixels correspond to those first color light sources and those first sub-pixels respectively；
Multiple second optical gate sub-pixels correspond to those second color light sources and those second sub-pixels respectively；
Multiple third optical gate sub-pixels correspond to those third color light sources and those third sub-pixels respectively；And
Multiple 4th optical gate sub-pixels correspond to those white sub-pixels respectively,
Wherein：
Adjacent the first optical gate sub-pixel, the second optical gate sub-pixel, the third optical gate sub-pixel and the 4th optical gate picture
Plain and corresponding first sub-pixels, second sub-pixels, the third sub-pixels and the white sub-pixels form one the
Unit one；
In addition first optical gate of this adjacent sub-pixel, the second optical gate sub-pixel, the third optical gate sub-pixel and the 4th optical gate
Sub-pixel and corresponding first sub-pixels, second sub-pixels, the third sub-pixels and the white sub-pixels are formed
A second unit adjacent with the first unit；
A wide angle mode is performed, including：
Drive those first color light sources, those second color light sources and those third color light sources；
Drive those the first optical gate sub-pixels, those the second optical gate sub-pixels, those third optical gate sub-pixels and those the 4th
Optical gate sub-pixel；And
Drive the display module；And
A narrow viewing angle pattern is performed, including：
Those first color light sources are driven without driving those second color light sources and those third color light sources；
Those the first optical gate sub-pixels are driven without driving those the second optical gate sub-pixels and those third optical gate sub-pixels；
Drive first sub-pixels of the first unit；And
The white sub-pixels of the first unit are not driven.
9. the method for switching display view angle as claimed in claim 8, wherein：
One user is θ 1 relative to the visual angle of a normal direction of the substrate；
Each first sub-pixels, each second sub-pixels, each third sub-pixels and each white
The width of pixel is P microns, and the first optical gate sub-pixel in the first unit diagonally connects with the most short of first sub-pixels
The direction of linear distance forms angle, θ 2 with the normal direction；
The first optical gate sub-pixel in the first unit it is corresponding with the first optical gate sub-pixel in the second unit this
The direction of the shortest route distance of one sub-pixels forms angle, θ 3 with the normal direction；
The optical gate is with the display module at a distance of T microns；
The distance of first sub-pixels and first sub-pixels in the second unit in the first unit is micro- for P × n
Rice, n=3；And
The display device meets：
(1)P/tan[sin-1(sinθ1/1.5)]≦T≦P×n/tan41.8°；
(2) tan θ 2=P/T；And
(3) tan θ 3=P × n/T.
10. the method for switching display view angle as claimed in claim 8, in the step of performing the narrow viewing angle pattern, further includes
Those the 4th optical gate sub-pixels are not driven.
11. the method for switching display view angle as claimed in claim 8, the white sub-pixels of the wherein second unit are to be located at
Between the third sub-pixels of the first unit and first sub-pixels of the second unit.
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| TW107101384A TWI632540B (en) | 2018-01-15 | 2018-01-15 | Display apparatus and method of switching viewing angle thereof |
| TW107101384 | 2018-01-15 |
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Cited By (1)
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|---|---|---|---|---|
| CN109886252A (en) * | 2019-03-27 | 2019-06-14 | 武汉华星光电技术有限公司 | A kind of liquid crystal display panel |
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Also Published As
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|---|---|
| TWI632540B (en) | 2018-08-11 |
| CN108267902B (en) | 2020-12-04 |
| TW201933316A (en) | 2019-08-16 |
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