CN103727452B - Display device and light emitting module thereof and light guide plate - Google Patents
Display device and light emitting module thereof and light guide plate Download PDFInfo
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- CN103727452B CN103727452B CN201210389782.3A CN201210389782A CN103727452B CN 103727452 B CN103727452 B CN 103727452B CN 201210389782 A CN201210389782 A CN 201210389782A CN 103727452 B CN103727452 B CN 103727452B
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Abstract
The invention discloses a kind of light emitting module and include a light guide plate, multiple light-guide device and a luminescence unit.Light guide plate can guide radiation direction, and has at least one incidence surface and two relative sides.Described light-guide device be arranged at light guide plate described side one of them, by one of them direction, vertical described side observe, each light-guide device is a curve with at least one point of inflexion.Luminescence unit is arranged at the incidence surface of light guide plate.After the light that luminescence unit sends enters light guide plate, by light guide plate and the guiding of described light-guide device, light is derived by one of them of the described side of light guide plate with bright dark staggered form.The present invention also discloses a kind of display device and this light guide plate.
Description
Technical field
The present invention relates to a kind of display device and light emitting module thereof and light guide plate.
Background technology
In recent years, owing to light emitting diode (Light Emitting Diode, LED) is in technique and material side
The continuous improvement in face so that the luminous efficiency of light emitting diode is substantially improved.It is different from general daylight lamp
Or Electricity-saving lamp bulb, light emitting diode has low power consumption, length in service life, safety height, luminescence response
The characteristic such as the time is short and volume is little, is the most little by little applied in luminaire, lamp box or light emitting module.
Wherein, luminaire e.g. indoor and outdoor light fixture, pocket lamp, the head of locomotive, taillight or other
Illuminator, and light emitting module such as can be applied and become backlight module or other purposes of display device.
Refer to shown in Figure 1A and Figure 1B, it is respectively the schematic perspective view of existing a kind of display device 1
And schematic side view.
Display device 1 includes display floater 11 and a light emitting module 12.In this, light emitting module 12
For the backlight module of display device 1, and the L that can emit beam is through display floater 11, draws with show image
Face.
Light emitting module 12 is arranged at the side of display floater 11, and it is flat to comprise two side light source 121,
The light guide plate 122 of tabular and multiple light-guide device 123.Two side light sources 121 are respectively with LED optical strip
As a example by, and it is respectively arranged at the dual-side that light guide plate 122 is relative, with the L that emits beam respectively by light guide plate
The one incidence surface I of 122 is incident to light guide plate 122.Each light-guide device 123 is respectively slanted bar shape (skew lines)
White ink, and coat on a bottom surface B1 of light guide plate 122.Wherein, light guide plate 122 is by complete
Reflection guides light to be transferred to central authorities by both sides.It addition, the function of light-guide device 123 is to destroy light
Total reflection, with guide light by light guide plate 122 exiting surface O penetrate and directive display floater 11, with
Show image picture.
But, when light L is by the exiting surface O directive display floater 11 of light guide plate 122, on exiting surface O
Light form be bright inner room every staggered skew lines figure, owing to there is strip on display floater 11
Staggered light shield layer (i.e. black matrix", light tight, figure does not shows), (figure as shown in the region A of Fig. 1 C
In 1C, the vertical bar stricture of vagina M of display is formed by light shield layer by light L, and slanted bar stricture of vagina N is light guide plate 122
Exiting surface O on bright dark staggered skew lines light formed), injection display floater 11 can be made
Light occurs that the interference phenomenon of optical diffraction occurs that (the region A of Fig. 1 C only indicates one and does interference fringe
Relating to striped, remaining does not indicates), that is folded stricture of vagina (Moir é) phenomenon being commonly called as occurs, cause display device
The display quality of 1 reduces.
Therefore, how a kind of light emitting module and display device are provided, can change and light light shape, and destroy dry
Relate to striped and improve the display quality of display device, it has also become one of important topic.
Summary of the invention
Because above-mentioned problem, the purpose of the present invention light light shape for providing one to change, and destroys dry
Relate to striped and improve the display device of the display quality of display device and light emitting module thereof and light guide plate.
For reaching above-mentioned purpose, according to a kind of light emitting module of the present invention, there is a light guide plate, multiple guide-lighting unit
Part and a luminescence unit.Light guide plate can guide radiation direction, and has at least one incidence surface and two relative
Side.Described light-guide device be arranged at light guide plate described side one of them, by vertical described side its
One of direction observe, each light-guide device is a curve with at least one point of inflexion.Luminescence unit is arranged
Incidence surface in light guide plate.After the light that luminescence unit sends enters light guide plate, by light guide plate and institute
State the guiding of light-guide device, by light with bright dark staggered form by its of the described side of light guide plate
One of derive.
In one embodiment, the spacing of any two adjacent light-guide devices is arranged with described light-guide device between 0
Side width between.
In one embodiment, the side that the centrage of each light-guide device is arranged relative to described light-guide device
Minor face has an angle, between angle is spent between 0 to 90.
In one embodiment, parallel incidence surface direction each light-guide device observed is groove-like or convex shape.
In one embodiment, described light-guide device is respectively provided with a reflecting material.
In one embodiment, vertical described light-guide device the side surface direction arranged is observed, each light-guide device
The width of minor face is between 50 microns and 150 microns.
For reaching above-mentioned purpose, include a display floater and a luminescence according to a kind of display device of the present invention
Module.Light emitting module is relative with display floater and sets, and comprises a light guide plate, multiple light-guide device and
Luminescence unit, light guide plate can guide radiation direction, and have at least one incidence surface and two relative sides,
Described light-guide device be arranged at light guide plate described side one of them, by vertical described side one of them
Direction is observed, and each light-guide device is a curve with at least one point of inflexion, and luminescence unit is arranged at leaded light
The incidence surface of plate, wherein, after the light that luminescence unit sends enters light guide plate, by light guide plate and institute
State the guiding of light-guide device, by light with bright dark staggered form by its of the described side of light guide plate
One of derive.
In one embodiment, display floater has multiple sub-pixel, and the curve of each light-guide device is by vertical institute
Stating the observation of one of them direction, side and have a peak swing, peak swing is more than 0, and less than or equal to each
1.5 times of the width of sub-pixel minor face.
In one embodiment, light emitting module is a parallax barrier element of display device.
In one embodiment, display device further includes a backlight module, light emitting module between display floater and
Between backlight module, when display device display 3D image, backlight module is closed, is shown in display device
During 2D image, backlight module is opened.
For reaching above-mentioned purpose, include at least one incidence surface, two relative according to a kind of light guide plate of the present invention
Side and multiple light-guide device.Described light-guide device be arranged at light guide plate described side one of them,
Being observed by one of them direction, vertical described side, each light-guide device is a song with at least one point of inflexion
Line.
From the above, because of according to the display device of the present invention and light emitting module thereof and light guide plate, due to leaded light
Plate has multiple light-guide device, and described light-guide device is positioned at light guide plate wherein one side, and each light-guide device
For having a curve of at least one point of inflexion.Thereby, penetrate by the side of the light guide plate of light emitting module when light
When display floater, by the setting of the light-guide device of multiple curves, can on side forming curves shape
Bright dark staggered light, and this curvilinear bright dark staggered light can reduce optical diffraction
Interference fringe phenomenon, therefore, can promote the display quality of display device.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application
Point, it is not intended that limitation of the invention.In the accompanying drawings:
Figure 1A and Figure 1B is respectively schematic perspective view and the schematic side view of existing a kind of display device；
Fig. 1 C is the schematic diagram of a kind of optical fringe；
Fig. 2 A and Fig. 2 B be respectively a kind of light emitting module of present pre-ferred embodiments schematic perspective view and
Schematic side view；
Fig. 2 C is the schematic side view of the light emitting module of another enforcement aspect；
Fig. 3 A and Fig. 3 B be respectively a kind of display device of present pre-ferred embodiments schematic perspective view and
Schematic side view；
Fig. 3 C is relatively showing of the described light-guide device of the pel array of the display floater of Fig. 3 A and light guide plate
It is intended to；
Fig. 3 D is the schematic diagram of the trend curve of a light-guide device；And
Fig. 4 A and Fig. 4 B is respectively the schematic side view of a kind of display device of another enforcement aspect of the present invention.
Drawing reference numeral:
1,3,3a, 3b: display device
11,4: display floater
12,2,2a, 2b: light emitting module
121: light source
122: light guide plate
123,211,211a: light-guide device
21: light guide plate
22: luminescence unit
224: reflecting material
24: reflecting material
25: light attenuation element
A: region
B, G, R: sub-pixel
B1: bottom surface
BL: backlight module
C: curve
D: distance
I: incidence surface
L: light
L1, L2: straight line
L3: centrage
M: vertical bar stricture of vagina
N: slanted bar stricture of vagina
O: exiting surface
S1, S2: side
P, W: width
R: the point of inflexion
X, Y: direction
Detailed description of the invention
Hereinafter with reference to correlative type, a kind of display device according to present pre-ferred embodiments is described and sends out
Optical module and light guide plate, the most identical element will be illustrated with identical reference marks.
Refer to shown in Fig. 2 A and Fig. 2 B, it is respectively a kind of light emitting module of present pre-ferred embodiments
The schematic perspective view of 2 and schematic side view.In this, Fig. 2 A and Fig. 2 B simply signal, display is not true
Real object ratio.It addition, the light emitting module 2 of the present invention is such as applicable as an illuminator, or should
With the backlight module for a flat display apparatus, or alternatively one disparity barrier (parallax barrier)
Element or be that a parallax prism element is applied to a 3 d display device, to provide disparity barrier or parallax
The effect of prism and make display device can show stereoscopic image.In this, it is not limited its purposes.This
Outward, each module of the present invention or each device all have driving means and drive signal, are below not described herein.
Light emitting module 2 includes a light guide plate 21, multiple light-guide device 211 and a luminescence unit 22.
Light guide plate 21 has at least one incidence surface I and two relative sides.In the present embodiment, such as Fig. 2 B
Shown in, light guide plate 21 has two relative side S1, S2.Wherein, light guide plate 21 (light-guiding plate)
In order to guide light going direction, and make with light transmissive material, and light transmissive material can be such as acrylic acid tree
Fat, Merlon, polyvinyl resin or glass, be not any limitation as.The refractive index of light transmissive material is more than
Periphery material (such as air, refractive index is about 1), have the light of special angle light guide plate 21 with
The boundary of periphery material can form total reflection effect, and can be guided by the light that be entered light by light guide plate 21 side
To middle body, formed the most equally distributed go out light form.It addition, the section shape of light guide plate 21 can
For example, tabular or wedge shape.In this, as a example by flat light guide plate 21.
S1, S2 are oppositely arranged in two sides, and in this, two sides S1, S2 instruct the area of tabula rasa 21 bigger
Surface, and the lower surface that side S1 is light guide plate 21, and the upper surface that side S2 is light guide plate 21.
Wherein, incidence surface I setting orthogonal with two side faces S1, S2.Wherein, the quantity correspondence of incidence surface I is luminous
The quantity of unit 22, and at least one, it is possible to for multiple.It addition, observer is normally at vertical side
Light emitting module 2 is observed in the direction of S2 (i.e. overlooking light guide plate 21).
Described light-guide device 211 is at least provided with one of them of described side S1, the S2 in light guide plate 21
Side, and use scattering or the mode such as reflection to guide or change light path, goes out light form needed for providing.
Wherein, described light-guide device 211 can be located in light guide plate 21, other positions in addition to incidence surface I,
All there are light-guide device 211, even light guide plate 21 in the such as light guide plate 21 all sides in addition to incidence surface I
The part on the non-surface of bosom also can arrange light-guide device 211.In this, as shown in Fig. 2 A, 2B, institute
As a example by stating the side S1 (lower surface) that light-guide device 211 is arranged at light guide plate 21.Wherein, light-guide device
211 are observed actually in groove-like by the direction (or direction of parallel side S1) being parallel to incidence surface I
Or the micro structure (microstructures) of convex shape, and observed (vertical view) light guide plate by vertical side S2
When 21, light-guide device 211 substantially can be respectively seen as a curve.Wherein, each curve at least includes one
The above point of inflexion (inflection point, also known as flex point, curvilinear figure this point by convex turn recessed or by
Recessed turn is convex, and the second derivative of this point is 0 or does not exists), the plural center of curvature (two points of inflexion
Between the center of circle of one of them osculating circle of line segment) and more than one curvature (inverse of osculating circle radius).
Observed by the direction of vertical side S2, the curve of each light-guide device 211 have can this curve of inner clip two
Close parallel lines, wherein, the center line equidistant with these two parallel lines is referred to as this light-guide device 211 curve
One centrage.
As shown in Figure 2 A, in the present embodiment, the centrage of light-guide device 211 is essentially not parallel one
The oblique line of direction X and a direction Y (in this, direction Y is the direction on the long limit of incidence surface I, and direction X
The most orthogonal with direction Y, and be the direction on the long limit of side S1, or on the contrary).Wherein, guide-lighting unit
The centrage of part 211 and direction Y or direction X have an angle (acute angle), and angle can be between 0 to 90
Between degree.In the present embodiment, the centrage of each light-guide device 211 is respectively toward left side, certainly
In other enforcement aspect, the centrage of each light-guide device 211 also can respectively be turned right inclination.Separately
Outward, as shown in Figure 2 B, each light-guide device 211 observes (direction X) in the direction of parallel side S1,
There is a curve minor face width P, and width P can be between 50 microns (um) and 150 microns (um)
Between.It addition, the long limit total length of each light-guide device 211 curve is between one times of the long edge lengths of side S1
Preferably be between a times to two times of the long edge lengths of side S1 between five times.
Any two light-guide devices 211 are non-intersect, do not contact between the most any two light-guide devices 211,
It is not communicated with not overlapping.In other words, the spacing at any two light-guide device 211 edges between 0 with described
Between the minor face width of the side S1 that light-guide device 211 is arranged, and it is not equal to 0.It addition, each light guide
Section (being observed by parallel side S1 direction, the direction X) shape of 211 can be respectively arc, polygon
(can comprise triangle, square, rectangle, trapezoidal, regular polygon) or irregular shape, this shape can
Cause this interface to have scattering effect, form the total reflection effect of different other interfaces of light guide plate 21, reach shape
Become what region went out light intensity different (clear zone or dark space) to go out light pattern.In this, each light-guide device 211
Section shape is respectively as a example by arc (semicircle).Special one is mentioned that, cuing open of each light-guide device 211
Face shape (being observed by the side-looking direction of parallel side S) can be identical or differ.Lead described in it addition,
The centrage of optical element curve can have curvature that is identical or that differ, and the present invention is all limited.At this
In embodiment, with the interval between the section shape of all of light-guide device 211, two light-guide devices 211
And curvature homogeneously with as a example by.
Luminescence unit is arranged at the incidence surface I of light guide plate 21.In the present embodiment, with two luminescence units 22
As a example by being adjacent to the incidence surface I of relative two sides of light guide plate 21 respectively.Wherein, luminescence unit 22 is sent
Light entered light guide plate 21 by incidence surface I respectively, and penetrated by side S1.Luminescence unit 22 can example
As comprise at least one light emitting diode, at least one Organic Light Emitting Diode (organic light-emitting diode,
OLED), at least one cathode fluorescent tube (cold cathode fluorescent lamp, CCFL) or
At least one thermal cathode fluorescent tube (hot cathode fluorescent lamp, HCFL), using as sending out
Light source in light unit 22.In this, luminescence unit 22 is respectively with a LED optical strip (light bar)
As a example by, and it is respectively provided with multiple light emitting diode and is arranged on circuit board.In other enforcement aspect,
One group of luminescence unit also can be only set, and be incident to light guide plate 21 by the side of light guide plate 21.
Reflecting material 24 is respectively arranged on described light-guide device 211, and can Refl-Luminous unit 22 institute
The light sent.Reflecting material 24 can be respectively arranged at inwall or the projection of described light-guide device 211 groove
Outer wall on, or the groove of described light-guide device 211 can be filled up respectively.In this, reflecting material 24 with
As a example by filling up the groove of described light-guide device 211 respectively.In the present embodiment, light-guide device 211 it is positioned at
Interior reflecting material 24 can destroy the total reflection of light L, so that light L is by the side S2 of light guide plate 21
Injection (if reflecting material 24 is positioned on the outer wall of projection, then reflecting material 24 can stop the traveling of light,
Light L is made to be recycled by after offside reflection).Wherein, reflecting material 24 can comprise oxide, and such as
Can be the silicon dioxide (SiO of white2), titanium dioxide (TiO2) or the material of other high reflectance.Value
Obtaining one to be mentioned that, light-guide device 211 is optional does not have reflecting material 24, only relies on scattering effect and guides
Light L is penetrated by one of them side, and can to cause the light of injection be bright dark staggered form.
Therefore, the light L that luminescence unit 22 is sent by incidence surface I enter (incident) to light guide plate 21,
By the total reflection effect in light guide plate 21, light can be transferred to whole light guide plate 21, and by being positioned at
Light can be scattered by multiple curve-like light-guide devices 211 with at least one point of inflexion of one side therein,
It (can be guide-lighting unit that light is derived with bright dark staggered form by the wherein one side of light guide plate 21
The another side S2 of the side S1 or relative that part 211 is arranged).Wherein, bright dark definition is, bright area
Represent that the brightness phase darker area in this region is high, and the brightness of darker area is more than 0.
It addition, refer to shown in Fig. 2 C, it is the schematic side view of the light emitting module of another enforcement aspect.
In this enforcement aspect, light-guide device 211a is arranged at the (upper surface of light guide plate 21 on the S2 of side
On), and observed by the direction (or being parallel to the direction of incidence surface I) of parallel side S2, described leaded light
Element 211a is actually the micro structure of convex shape.It addition, reflecting material 24 be respectively arranged at described in lead
On the outer wall that optical element 211a is protruding.
Additionally, other technical characteristic of the light emitting module of Fig. 2 C can refer to Fig. 2 B, repeat no more.
Refer to shown in Fig. 3 A and Fig. 3 B, it is respectively a kind of display device of present pre-ferred embodiments
The schematic perspective view of 3 and schematic side view.
Light emitting module 2 is relative with display floater 4 and sets, and comprises light guide plate 21 and a luminescence unit.
Light guide plate 21 has multiple light-guide device 211, and described light-guide device 211 is positioned at its of light guide plate 21
Middle one side, in this, as a example by the side S1 (lower surface) being positioned at light guide plate 21.Due to light-guide device
211 micro structures that may actually be groove or projection, the width of its section is fairly small, and in vertical side
When light guide plate 21 is overlooked in the direction of S2, light-guide device 211 is substantially respectively a curve.In this, such as figure
Shown in 3A, the light-guide device 211 of curve shape, its centrage can be substantially not parallel direction X and side
To the oblique line of Y, in other words, the angle between itself and direction X and direction Y can be between 0 to 90 degree
Between.But, in other embodiments, the centrage of light-guide device 211 also can be with direction X or side
Parallel to Y, in other words, the angle between itself and direction X and direction Y can be 0 degree or 90 degree.
It addition, any two light-guide devices 211 are non-intersect, and the spacing at any two adjacent light-guide device 211 edges
Between 0 and the minor face width of the side S1 of described light-guide device 211 setting, and each light-guide device 211
The section shape being observed (side-looking, direction X) by parallel side S1 direction can be respectively arc, polygon
(triangle, square, rectangle, trapezoidal, regular polygon can be comprised) or irregular shape.In this, respectively
The section shape of light-guide device 211 is respectively as a example by arc (semicircle).Special one is mentioned that, respectively leads
The section shape of optical element 211 can be identical or differ.It addition, the center of described light-guide device 211
Line can be respectively provided with curvature that is identical or that differ, and the present invention is all limited.In the present embodiment, with
Interval and curvature between the section shape of all of light-guide device 211, two adjacent light-guide devices 211 are equal
As a example by identical.Additionally, as shown in Figure 3 B, each light-guide device 211 is by (direction, vertical side S1 direction
X) observation is respectively provided with a minor face width P, and width P can be between 50 microns and 150 microns.
It addition, luminescence unit is arranged at an incidence surface I of light guide plate 21, and the L that emits beam is by incidence surface
I entrance (incident), to light guide plate 21, can make light via the guiding of light guide plate 21 and light-guide device 211
L is derived (injection) with bright dark staggered form by one of them side S2.In this, luminous with two
As a example by unit 22 is adjacent to the incidence surface I of relative two sides of light guide plate 21 respectively.Wherein, luminescence unit
22 light sent are entered light guide plate 21 by incidence surface I respectively, and are penetrated by side S2.The present embodiment
Luminescence unit 22 respectively as a example by a LED optical strip (light bar).Additionally, reflecting material
24 are respectively arranged in described light-guide device 211.In this, filling up described light-guide device 211 respectively it is
Example.Additionally, other technical characteristic of light emitting module 2 can refer to above-mentioned, repeat no more.
Refer to shown in Fig. 3 C, the pel array of its display floater 4 being Fig. 3 A and the institute of light guide plate 21
State the relative schematic diagram of light-guide device 211.In this, only show the part sub-pixel of display floater 4 and lead
Optical element 211.
Display floater 4 has multiple pixel, and described pixel becomes a pixel at a direction X and a direction Y shape
Array.Wherein, direction X and direction Y is orthogonal (identical with the direction X of previous embodiment and direction Y),
And each pixel is respectively provided with multiple sub-pixel, sub-pixel is similarly formed an array.In this, each pixel is respectively
As a example by there are three sub-pixels R, G, B.Remind, the described light-guide device of the present embodiment 211 with
Sub-pixel R, the relative position relation simply citing of G, B, certainly in other enforcement aspect, described
Light-guide device 211 can be the different (slope of trend curve from the relative position relation of sub-pixel R, G, B
And curvature can change).The such as centrage of light-guide device 211 can more tilt and be partial to direction X, or
Direction Y can be partial to.
Additionally, each light-guide device 211 is observed the shape of (vertical view) substantially by the direction of vertical side S2
It is respectively a curve, and this curve has a peak swing, and (ultimate range i.e. swung, for can inner clip be somebody's turn to do
The two of curve are closest to the spacing of parallel lines), and peak swing is less than or equal to a sub-pixel minor face width
1.5 times of degree, and more than 0.In other words, as shown in Figure 3 D, the trend curve of each light-guide device 211
Representing with curve C, the point of inflexion of curve C is as shown in the R in figure, and the song of each light-guide device 211
Line C have can two immediate parallel lines L1 of inner clip this curve C, L2, wherein, with two straight parallel
The equidistant center line of line L1, L2 is referred to as the centrage L3 of this light-guide device 211 curve C.It addition, curve
The peak swing (i.e. distance D of Fig. 3 D) that C swings is less than or equal to a sub-pixel minor face width W
1.5 times, and more than 0.In this, peak swing is the ultimate range that curve C swings, i.e. curve C is
The tangent line (straight line) of high point and minimum point distance between L1, L2.Wherein, the width on the long limit of sub-pixel
3 times of degree generally minor face width, but the long limit of sub-pixel and minor face width be not with this ratio for limiting.
It addition, the angle (acute angle) that the centrage L3 and direction Y of light-guide device 211 or direction X have can
Between spending between 0 to 90.
By actual it is demonstrated experimentally that in the display device 3 of the present invention, when light L is by light emitting module 2
The side S2 directive display floater 4 of light guide plate 21 time, arranged by the side S1 at light guide plate 21
The light-guide device 211 (and reflection of reflecting material 224) of multiple trend curves, can make injection light guide plate
The light L-shaped of 21 becomes curve and the light of bright dark alternative form, when by display floater 4, this form
Light can lower and light shield layer (i.e. black matrix") on display floater 4 produces the interference of optical diffraction
Phenomenon and reduce interference fringe, therefore, the display quality of display device 3 can be promoted.
Illustrating, in another implements aspect, the light emitting module 2 of display device more can include that one is anti-again
Penetrate plate and or at least one blooming piece (figure do not show), reflecting plate may be disposed at the side of light guide plate 21
Wherein side (with the opposition side of display floater 4), reflexes to light guide plate again with the light by injection side
In 21.It addition, blooming piece can for example, one diffusion sheet, and may be disposed at light emitting module 2 and display surface
Between plate 4, so that the light of injection light emitting module 2 can form a uniform area source by after diffusion sheet.
Wherein, can have gap between reflecting plate and blooming piece and light guide plate 21.
It addition, in another enforcement aspect, light emitting module 2 can be as the parallax of a 3 d display device
(parallax) element, to become a parallax barrier element, the bright dark shape of side S2 alternate are controlled
The left-eye images that pixel on display floater 4 is exported can be transferred into the left side of beholder by the light of formula
Eye, and right-eye image pixel on display floater 4 exported can be transferred into the right eye of beholder, makes
Two that obtain beholder can receive the different images with binocular parallax (binocular parallax) respectively,
And then allow beholder be not required to wear auxiliary eyeglasses just can be with bore hole perception stereoscopic image.Wherein, as vertical
During one parallax barrier element of body display device, the curvature of all of light-guide device 211 needs identical, and two
The interval of adjacent light guide plate 211 also needs identical.
It addition, refer to shown in Fig. 4 A, it is a kind of display device 3a of another enforcement aspect of the present invention
Schematic side view.
Primary difference is that with display device 3, when light emitting module 2a is as the parallax screen of display device 3a
When hindering element and make display device 3a can show 3D image, light emitting module 2a more can have a light attenuation
Element (attenuator) 25 is arranged at the side of light guide plate 21 side S1.When light passes light guide plate 21
Side S1 and when entering light attenuation element 25, light attenuation element 25 can lower (or absorption) its
Energy, disturbs light emitting module 2a's to avoid the light penetrating side S1 to be reflected into light guide plate 21 again
Go out light, and then affect the stereo display effect of display device 3.
It addition, refer to shown in Fig. 4 B, it is a kind of display device 3b of the present invention another enforcement aspect
Schematic side view.
When light emitting module 2a is as the parallax barrier element of display device 3b, display device 3b more can be wrapped
Including a backlight module BL, backlight module BL is arranged at side (light emitting module 2a Jie of light emitting module 2a
Between display floater 4 and backlight module BL), to provide light to display floater 4.Wherein, aobvious
During showing device 3b 3D to be shown image, backlight module BL can be closed and only lean on light emitting module 2a luminous.
It addition, when making light emitting module 2a and backlight module BL luminescence simultaneously (backlight module BL unlatching),
The image of display device 3b display 2D can be made.Thereby, can switch over and make display device 3b to show
The image of 2D or 3D.
Additionally, other technical characteristic of display device 3a and display device 3b can refer to display device 3
Similar elements, repeats no more in this.
In sum, because of according to the display device of the present invention and light emitting module thereof and light guide plate, due to leaded light
Plate has multiple light-guide device, and described light-guide device is positioned at light guide plate wherein one side, and each light-guide device
For having a curve of at least one point of inflexion.Thereby, penetrate by the side of the light guide plate of light emitting module when light
When display floater, by the setting of the light-guide device of multiple curves, can on side forming curves shape
Bright dark staggered light, and this curvilinear bright dark staggered light can reduce optical diffraction
Interference fringe phenomenon, therefore, can promote the display quality of display device.
The foregoing is only illustrative, rather than be restricted.Any spirit and scope without departing from the present invention,
And the equivalent modifications that it is carried out or change, it is intended to be limited solely by right.
Claims (16)
1. a light emitting module, corresponding to a display floater, it is characterised in that including:
One light guide plate, it can guide radiation direction, and have at least one incidence surface and two relative sides；
Multiple light-guide devices, be arranged at described light guide plate described side one of them, by vertical described side
One of them direction, face is observed, and each described light-guide device is a curve with at least one point of inflexion；And
One luminescence unit, is arranged at the described incidence surface of described light guide plate；
Wherein, after the light that described luminescence unit sends enters described light guide plate, by described light guide plate
And the guiding of described light-guide device, by light with bright dark staggered form by described in described light guide plate
One of them of side derives；
Wherein, the described side that the centrage of each described light-guide device is arranged relative to described light-guide device
Minor face has an angle, between described angle is spent between 0 to 90；
Wherein, described display floater has multiple sub-pixel, and the described curve of each described light-guide device is by hanging down
One of them direction, straight described side is observed has a peak swing, and described peak swing is more than 0, and is less than
Or 1.5 times of the width equal to each described sub-pixel minor face.
2. light emitting module as claimed in claim 1, it is characterised in that any two adjacent light-guide devices
Spacing is between 0 and the width of the described side of described light-guide device setting.
3. light emitting module as claimed in claim 1, it is characterised in that by parallel described incidence surface direction
The each described light-guide device observed is groove-like or convex shape.
4. light emitting module as claimed in claim 3, it is characterised in that set respectively on described light-guide device
Put a reflecting material.
5. light emitting module as claimed in claim 1, it is characterised in that set by vertical described light-guide device
The described side surface direction put is observed, and the width of each described light-guide device minor face is between 50 microns and 150 microns
Between.
6. a display device, it is characterised in that including:
One display floater, has multiple sub-pixel；And
One light emitting module, relative with described display floater and set, and comprise a light guide plate, multiple guide-lighting unit
Part and a luminescence unit, described light guide plate can guide radiation direction, and has at least one incidence surface and biphase
To side, described light-guide device be arranged at described light guide plate described side one of them, by vertical institute
Stating one of them direction, side to observe, each described light-guide device is a curve with at least one point of inflexion,
Described luminescence unit is arranged at the described incidence surface of described light guide plate,
Wherein, after the light that described luminescence unit sends enters described light guide plate, by described light guide plate
And the guiding of described light-guide device, by light with bright dark staggered form by described in described light guide plate
One of them of side derives；
Wherein, the described side that the centrage of each described light-guide device is arranged relative to described light-guide device
Minor face has an angle, between described angle is spent between 0 to 90；
Wherein, the described curve of each described light-guide device is observed tool by one of them direction, vertical described side
Having a peak swing, described peak swing is more than 0, and less than or equal to the width of each described sub-pixel minor face
1.5 times.
7. display device as claimed in claim 6, it is characterised in that any two adjacent light-guide devices
Spacing is between 0 and the width of the described side of described light-guide device setting.
8. display device as claimed in claim 6, it is characterised in that by parallel described incidence surface direction
The each described light-guide device observed is groove-like or convex shape.
9. display device as claimed in claim 8, it is characterised in that set respectively on described light-guide device
Put a reflecting material.
10. display device as claimed in claim 6, it is characterised in that by vertical described light-guide device
The described side surface direction arranged is observed, and the width of each described light-guide device minor face is micro-with 150 between 50 microns
Between meter.
11. display devices as claimed in claim 6, it is characterised in that described light emitting module is described
One parallax barrier element of display device.
12. display devices as claimed in claim 11, it is characterised in that described display device further includes
One backlight module, described light emitting module is between described display floater and described backlight module, described
During display device display 3D image, described backlight module is closed, and shows 2D image in described display device
Time, described backlight module is opened.
13. 1 kinds of light guide plates, a corresponding display floater, it is characterised in that including:
At least one incidence surface；
Two relative sides；And
Multiple light-guide devices, be arranged at described light guide plate described side one of them, by vertical described side
One of them direction, face is observed, and each described light-guide device is a curve with at least one point of inflexion；
Wherein, the described side that the centrage of each described light-guide device is arranged relative to described light-guide device
Minor face has an angle, between described angle is spent between 0 to 90；
Wherein, described display floater has multiple sub-pixel, and the described curve of each described light-guide device is by hanging down
One of them direction, straight described side is observed has a peak swing, and described peak swing is more than 0, and is less than
Or 1.5 times of the width equal to each described sub-pixel minor face.
14. light guide plates as claimed in claim 13, it is characterised in that set by vertical described light-guide device
The described side surface direction put is observed, and the width of each described light-guide device minor face is between 50 microns and 150 microns
Between.
15. light guide plates as claimed in claim 13, it is characterised in that by parallel described incidence surface direction
The described light-guide device observed is groove-like or convex shape.
16. light guide plates as claimed in claim 15, it is characterised in that set respectively on described light-guide device
Put a reflecting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389782.3A CN103727452B (en) | 2012-10-15 | 2012-10-15 | Display device and light emitting module thereof and light guide plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210389782.3A CN103727452B (en) | 2012-10-15 | 2012-10-15 | Display device and light emitting module thereof and light guide plate |
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| CN103727452A CN103727452A (en) | 2014-04-16 |
| CN103727452B true CN103727452B (en) | 2016-12-21 |
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| KR20160041235A (en) * | 2014-10-07 | 2016-04-18 | 삼성전자주식회사 | Transparent display apparatus |
| CN105096748A (en) * | 2015-07-27 | 2015-11-25 | 武汉华星光电技术有限公司 | Display panel and display device with same |
| JP6503963B2 (en) * | 2015-07-29 | 2019-04-24 | オムロン株式会社 | Optical device |
| CN107448909B (en) * | 2016-05-31 | 2019-10-15 | 瑞仪光电(苏州)有限公司 | Backlight module |
| CN107340564A (en) * | 2017-09-06 | 2017-11-10 | 深圳市超显科技有限公司 | Variable linear light guide plate and optical module |
| CN107741666B (en) * | 2017-10-27 | 2020-08-04 | 上海天马微电子有限公司 | Display device |
| CN108954214A (en) * | 2018-05-31 | 2018-12-07 | 丽清汽车科技(上海)有限公司 | A kind of light and thin type taillight |
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| CN103727452A (en) | 2014-04-16 |
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Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 4, building 1, building Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Applicant after: Innolux Display Group Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 4, building 1, building Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Applicant before: Chimei Optoelectronics Co., Ltd. |
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