CN109116627A - A kind of down straight aphototropism mode set and liquid crystal display - Google Patents
A kind of down straight aphototropism mode set and liquid crystal display Download PDFInfo
- Publication number
- CN109116627A CN109116627A CN201811045350.4A CN201811045350A CN109116627A CN 109116627 A CN109116627 A CN 109116627A CN 201811045350 A CN201811045350 A CN 201811045350A CN 109116627 A CN109116627 A CN 109116627A
- Authority
- CN
- China
- Prior art keywords
- lens
- back light
- led
- mode set
- down straight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The invention discloses a kind of down straight aphototropism mode set and liquid crystal displays, the back light for including: backboard and being arranged on backboard, the back light is arranged in matrix form, and the back light includes: the first back light, positioned at the corner position of matrix form back light；Second back light, positioned at the position in addition to corner position of matrix form back light, the down straight aphototropism mode set further include: the first lens, first lens are arranged above the first back light；The top of the second back light is arranged in second lens, second lens；Wherein, the angle of divergence of first lens is greater than the angle of divergence of second lens.Using this down straight aphototropism mode set, luminous the phenomenon that not being able to satisfy brightness uniformity requirement of backlight module entirety in the prior art is improved.
Description
The application is entitled " a kind of down straight aphototropism mode set and the liquid crystal display proposed on November 12nd, 2014
The divisional application of the Chinese invention patent application 201410636449.7 of device ".
Technical field
The present invention relates to LCD Technology field, a kind of down straight aphototropism mode set and liquid crystal display are more particularly related to
Device.
Background technique
Liquid crystal display has become the flat-panel display device of mainstream at present, however since liquid crystal display panel itself does not shine,
Backlight module becomes one of indispensable important component of liquid crystal display, is currently applied to large-sized liquid crystal display
LED(Light Emitting Diode, light emitting diode) backlight module is generally straight-down negative structure.
In order to reduce light mixing distance, lens often are set in the top of LED light in the prior art, wherein refraction type lens
Principle of luminosity as shown in Figure 1, LED issue light need to enter in backlight cavity after unirefringence, the shape on diffuser plate
The hot spot dissipated at one, and the brightness for dissipating hot spot can gradually decrease around from centre, be in the prior art guarantee mould
The brightness uniformity of group display, needs to adjust the spacing between adjacent LED lamp, so that the hot spot that LED is formed on diffuser plate omits
There is coincidence, so that the display brightness of display screen is more uniform, since the LED close to back plate edges is in the side close to backboard
It is no adjacent LED lamp, so the light at edge can be than darker.In the prior art often by adjusting back plate edges and backboard side
Adjacent the distance between the LED light of edge makes the edge of backboard close to the center of hot spot, so that its brightness is not necessarily to and other light sources
Hot spot be overlapped and can meet the requirement of backlight illumination uniformity.
Inventors have found that after at a distance between the adjustment back plate edges LED light adjacent with back plate edges, backlight module
Four apex angles are greater than backlight module edge at a distance from LED at a distance from LED, so that the brightness at back plate edges meets brightness
Uniformity when, the brightness of the four corners of backlight module display surface is not able to satisfy bright still less than the brightness of other display areas
Spend the requirement of uniformity.
In conclusion technical solution in the prior art is not able to satisfy the demand of brightness uniformity still.
Summary of the invention
The embodiment of the present invention provides a kind of down straight aphototropism mode set and liquid crystal display, to solve skill in the prior art
Art scheme is not able to satisfy the problem of requirement of brightness uniformity.
The embodiment of the present invention provides a kind of down straight aphototropism mode set, comprising: backboard and the back light being arranged on backboard,
The back light is arranged in matrix form, and the back light includes: the first back light, positioned at the top of matrix form back light
Angle Position；Second back light, positioned at the position in addition to corner position of matrix form back light, the downward back optical mode
Group further include:
The top of the first back light is arranged in first lens, first lens；
The top of the second back light is arranged in second lens, second lens；
Wherein, the angle of divergence of first lens is greater than the angle of divergence of second lens.
Further, first lens are reflective lens, and second lens are refraction type lens.
Further, first lens are reflective lens, and second lens are reflective lens.
Further, first lens are refraction type lens, and second lens are refraction type lens.
Further, the back light is Light-Emitting Diode LED.
Further,
The LED in same a line is arranged in same lamp bar；Or,
The LED in same row is arranged in same lamp bar.
Further, described in same lamp bar, and the distance between adjacent described LED is equal.
Further, the distance between the LED of the neighbouring back plate edges and the back plate edges, are less than the place
In in same lamp bar and adjacent the distance between the LED.
Further, the distance between adjacent described LED is equal.
The embodiment of the present invention provides a kind of liquid crystal display, including above-mentioned down straight aphototropism mode set.
Down straight aphototropism mode set includes: backboard and the back light that is arranged on backboard in the embodiment of the present invention, the back
Radiant is arranged in matrix form, and the back light includes: the first back light, positioned at the apex angle position of matrix form back light
It sets；Second back light, positioned at the position in addition to corner position of matrix form back light, the down straight aphototropism mode set is also
It include: the first lens, first lens are arranged above the first back light；Second lens, the second lens setting exist
The top of second back light；Wherein, the angle of divergence of first lens is greater than the angle of divergence of second lens.Using this hair
The down straight aphototropism mode set that bright embodiment provides, since the angle of divergence of the first lens is greater than the angle of divergence of second lens, institute
With under same light mixing distance the first lens bigger hot spot can be formed on diffuser plate so that being expanded by the first lens
The brightness for corner portion of the upper hot spot for forming diverging to backlight module that fall apart is consistent with the brightness of other display areas, therefore uses
The present invention provides technical solutions, and the back of the corner portion of backlight module can be made by the larger angle of divergence of first lens
Brightness gets a promotion, and improves the luminous requirement for not being able to satisfy brightness uniformity of backlight module entirety in the prior art.
Detailed description of the invention
Fig. 1 is the luminous schematic diagram of refraction type lens in background technique；
Fig. 2 is a kind of back light schematic diagram of down straight aphototropism mode set provided in an embodiment of the present invention；
Fig. 3 is a kind of lamp bar shape back light down straight aphototropism mode set schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another lamp bar shape back light down straight aphototropism mode set schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of down straight aphototropism mode set schematic diagram provided in an embodiment of the present invention；
Fig. 6 is the luminous schematic diagram of reflective lens provided in an embodiment of the present invention；
Fig. 7 is another down straight aphototropism mode set schematic diagram provided in an embodiment of the present invention；
Fig. 8 is another down straight aphototropism mode set schematic diagram provided in an embodiment of the present invention；
Fig. 9 is between LED in down straight aphototropism mode set shown in Fig. 3 apart from schematic diagram.
Specific embodiment
Down straight aphototropism mode set includes: backboard and the back light that is arranged on backboard in the embodiment of the present invention, the back
Radiant is arranged in matrix form, and the back light includes: the first back light, positioned at the apex angle position of matrix form back light
It sets；Second back light, positioned at the position in addition to corner position of matrix form back light, the down straight aphototropism mode set is also
It include: the first lens, first lens are arranged above the first back light；Second lens, the second lens setting exist
The top of second back light；Wherein, the angle of divergence of first lens is greater than the angle of divergence of second lens.Using this hair
The down straight aphototropism mode set that bright embodiment provides, since the angle of divergence of the first lens is greater than the angle of divergence of second lens, institute
With under same light mixing distance the first lens bigger hot spot can be formed on diffuser plate so that being expanded by the first lens
The brightness for corner portion of the upper hot spot for forming diverging to backlight module that fall apart is consistent with the brightness of other display areas, therefore uses
The present invention provides technical solutions, and the corner portion of backlight module can be made by the biggish angle of divergence of first lens
Backlight illumination gets a promotion, and improves the luminous requirement for not being able to satisfy brightness uniformity of backlight module entirety in the prior art.
The embodiment of the present invention provides a kind of down straight aphototropism mode set, comprising: provides a kind of down straight aphototropism mode set, comprising:
Backboard and the back light being arranged on backboard, the back light are arranged in matrix form, and the back light includes: the first back
Radiant, positioned at the corner position of matrix form back light；Second back light removes apex angle position positioned at matrix form back light
Position other than setting, the down straight aphototropism mode set further include:
First lens, first lens are arranged above the first back light；
The top of the second back light is arranged in second lens, second lens；
Wherein, the angle of divergence of first lens is greater than the angle of divergence of second lens.
In embodiments of the present invention, the backlight light of the first back light and the second back light composition down straight aphototropism mode set
Source, wherein the first back light, positioned at the corner position of matrix form back light；Second back light is located at matrix form backlight
The position in addition to corner position of light source, it is specific as shown in Fig. 2, the first back light is indicated with " 1 ", with " 2 " expression second
Back light, as shown in the figure, the apex angle of " 1 " apart from backboard are nearest.
Further, the back light is Light-Emitting Diode LED.
Further, the shown LED in a line is arranged in same lamp bar；As shown in figure 3, a total of 9
LED light bar, and include 5 LED in each LED light bar, wherein LED light bar is parallel with the short side of the backboard.
Further, the LED in same row is arranged in same lamp bar, as shown in figure 4, a total of 5
LED light bar, and include 9 LED in each LED light bar, wherein LED light bar is parallel with the long side of the backboard.
In embodiments of the present invention, the first lens, first lens are arranged above the first back light；
The top of the second back light is arranged in second lens, second lens；Wherein, the angle of divergence of first lens is big
In the angle of divergence of second lens.
May include following several situations if the angle of divergence of the first lens is greater than the angle of divergence of the second lens:
1) first lens are reflective lens, and second lens are refraction type lens.
2) first lens are reflective lens, and second lens are reflective lens.
3) first lens are refraction type lens, and second lens are refraction type lens.
In the first situation, the first lens are reflective lens, and the second lens are refraction type lens, wherein the first lens
The angle of divergence be greater than the second lens the angle of divergence.As shown in Figure 5, it is believed that " B " be arranged in it is anti-on the first back light
Formula lens are penetrated, and " A " is the refraction type lens being arranged on the second back light, wherein refraction type lens are arranged on LED,
When LED issue light entered in backlight cavity after unirefringence, on diffuser plate formed one diverging hot spot.Due to
The angle of divergence of first lens is greater than the angle of divergence of second lens, as shown in fig. 6, when reflective lens are arranged in LED
On, when the light that LED is issued reflects through reflective lens inner surface primary, then reflects primary, enter eventually into again through reflector plate
Backlight cavity, forms the hot spot of a biggish diverging on diffuser plate, and the backlight illumination of the corner portion of the backlight module made obtains
To promotion, the luminous requirement for not being able to satisfy brightness uniformity of backlight module entirety in the prior art is improved.
Wherein, the LED in Fig. 5 can be combined into 9 LED light bars according to Fig. 3, and include 5 in each LED light bar
LED, wherein LED light bar is parallel with the short side of the backboard；5 LED light bars can also be combined into according to Fig. 4, and each
It include 9 LED in LED light bar, wherein LED light bar is parallel with the long side of the backboard.The embodiment of the present invention is to LED combination
Lamp bar and the backboard certain on one side it is parallel without limitation.
In second situation, the first lens are reflective lens, and the second lens are reflective lens, wherein the first lens
The angle of divergence be greater than the second lens the angle of divergence.As shown in Figure 7, it is believed that " D " be arranged in it is anti-on the first back light
Formula lens are penetrated, " C " is the refraction type lens being arranged on the second back light.When LED issue light in reflective lens table
Face reflection is primary, is then reflected through reflector plate once again, enters eventually into backlight cavity, the hot spot formed on diffuser plate.By
It is greater than the angle of divergence of second lens in the angle of divergence of first lens, so, it is reflective on the first back light
The spot radius that mirror is formed on diffuser plate can be greater than the light that the refraction type lens on the second back light are formed on diffuser plate
The backlight illumination of spot radius, the corner portion of the backlight module made gets a promotion, and it is whole to improve backlight module in the prior art
It shines and is not able to satisfy the requirement of brightness uniformity.
It likewise, the LED in Fig. 7 can be combined into 9 LED light bars according to Fig. 3, and include 5 in each LED light bar
A LED, wherein LED light bar is parallel with the short side of the backboard；5 LED light bars can also be combined into according to Fig. 4, and each
It include 9 LED in LED light bar, wherein LED light bar is parallel with the long side of the backboard.The embodiment of the present invention is to LED combination
Lamp bar and the backboard certain on one side it is parallel without limitation.
In the third situation, the first lens are refraction type lens, and the second lens are refraction type lens, wherein the first lens
The angle of divergence be greater than the second lens the angle of divergence.As shown in Figure 8, it is believed that " E " is the folding being arranged on the first back light
Formula lens are penetrated, " F " is the refraction type lens being arranged on the second back light.When the light that LED is issued is laggard by unirefringence
Enter into backlight cavity, forms the hot spot of a diverging on diffuser plate.Described in the angle of divergence of first lens is greater than
The angle of divergence of second lens, so, the spot radius that the refraction type lens on the first back light are formed on diffuser plate can be big
In the spot radius that the refraction type lens on the second back light are formed on diffuser plate, the back of the corner portion of the backlight module made
Brightness gets a promotion, and improves the luminous requirement for not being able to satisfy brightness uniformity of backlight module entirety in the prior art.
It likewise, the LED in Fig. 8 can be combined into 9 LED light bars according to Fig. 3, and include 5 in each LED light bar
A LED, wherein LED light bar is parallel with the short side of the backboard；5 LED light bars can also be combined into according to Fig. 4, and each
It include 9 LED in LED light bar, wherein LED light bar is parallel with the long side of the backboard.The embodiment of the present invention is to LED combination
Lamp bar and the backboard certain on one side it is parallel without limitation.
Further, the distance between the described LED LED in same lamp bar adjacent thereto is equal.
Further, the distance between the LED in adjacent lamp bar, with described in same lamp bar
The distance between the LED LED adjacent thereto is equal.
Further, described positioned at the LED of the back plate edges being in same lamp bar and the back plate edges
Distance, the LED the distance between adjacent thereto less than the LED in the same lamp bar.
As shown in figure 9, the distance between the LED being located in same lamp bar on backboard is L1, the LED in adjacent lamp bar
The distance between be L1, and be located at the back plate edges the LED in the same lamp bar and the back plate edges away from
From for L2, and L2 < L1.
The embodiment of the present invention is by taking the down straight aphototropism mode set that 5*9 formula is arranged as an example, in conjunction with Fig. 3 and Fig. 4 to backlight of the present invention
Module design method is described in detail.
In the embodiment of the present invention, the first back light is the back light nearest apart from backboard apex angle, the second back on backboard
Radiant is the back light in addition to the first back light；And being arranged on the first back light is the first lens, the second backlight
Being arranged on light source is the second lens；And the angle of divergence of the first lens is greater than the angle of divergence of second lens.
If the first lens are reflective lens, when the second lens are refraction type lens, issued as the first back light LED
Light reflects once through reflective lens inner surface, is then reflected through reflector plate once again, enters eventually into backlight cavity, spreading
The hot spot of a diverging is formed on plate；When the light that the second back light LED is issued enters backlight cavity after unirefringence
In, the hot spot of a diverging is formed on diffuser plate.Since the angle of divergence of first lens is greater than the hair of second lens
Angle is dissipated, so the radius that the first back light LED forms the hot spot of diverging on diffuser plate is issued greater than the second back light LED
Light formed on diffuser plate diverging hot spot radius.
Since the brightness of diverging hot spot can gradually decrease around from centre, the distance between second back light LED is equal
For L1, so, the second back light LED forms the hot spot being slightly overlapped formed between the hot spot of diverging on diffuser plate,
So that the display brightness of display screen is more uniform；Since the first back light LED forms the hot spot of diverging on diffuser plate
Radius be greater than the radius that the light that the second back light LED is issued forms the hot spot of diverging on diffuser plate, so, even the
Hot spot between one back light and its opposite apex angle is a single hot spot, due to hot spot brightness from it is intermediate around
It gradually decreases, in the embodiment of the present invention, guarantees that the light of the first back light sending forms arriving for the hot spot of diverging on diffuser plate
The brightness of apex angle is not less than the brightness of other display areas, meets the requirement of brightness uniformity.
If the first lens are reflective lens, the second lens are reflective lens, and the angle of divergence of the first lens is greater than the
The angle of divergence of two lens.When the light that the first back light LED is issued is reflected through reflective lens inner surface once, then through reflecting
Piece reflects once again, enters eventually into backlight cavity, and the hot spot of a diverging is formed on diffuser plate；When the second back light
The light that LED is issued reflects once through reflective lens inner surface, is then reflected through reflector plate once again, enters eventually into backlight cavities
Body forms the hot spot of a diverging on diffuser plate.
Since the angle of divergence of first lens is greater than the angle of divergence of second lens, and the angle of divergence of the first lens is big
In the angle of divergence of the second lens.So the radius that the first back light LED forms the hot spot of diverging on diffuser plate is greater than second
The light that back light LED is issued forms the radius of the hot spot of diverging on diffuser plate.Due to diverging hot spot brightness from centre to
Four weekly assemblies gradually decrease, and the distance between second back light LED is L1, so, the second back light LED is on diffuser plate
The hot spot being slightly overlapped all formed between the hot spot of diverging is formed, so that the display brightness of display screen is more uniform；By
It is greater than the light that the second back light LED is issued in the radius that the first back light LED forms the hot spot of diverging on diffuser plate to exist
The radius of the hot spot of diverging is formed on diffuser plate, so, the hot spot between even the first back light and its opposite apex angle
It is a single hot spot, since the brightness of hot spot gradually decreases around from centre, in the embodiment of the present invention, guarantees the first back
The brightness to apex angle that the light that radiant issues forms the hot spot of diverging on diffuser plate is not less than the brightness of other display areas,
Meet the requirement of brightness uniformity.
If the first lens are refraction type lens, the second lens are refraction type lens, and the angle of divergence of the first lens is greater than the
The angle of divergence of two lens.When the first back light LED issue light entered in backlight cavity after unirefringence, spreading
The hot spot of a diverging is formed on plate；When the light that the second back light LED is issued enters backlight cavity after unirefringence
In, the hot spot of a diverging is formed on diffuser plate.Since the angle of divergence of first lens is greater than the hair of second lens
Angle is dissipated, so the radius that the first back light LED forms the hot spot of diverging on diffuser plate is issued greater than the second back light LED
Light formed on diffuser plate diverging hot spot radius.
Since the brightness of diverging hot spot can gradually decrease around from centre, the distance between second back light LED is equal
For L1, so, the second back light LED forms the hot spot being slightly overlapped formed between the hot spot of diverging on diffuser plate,
So that the display brightness of display screen is more uniform；Since the first back light LED forms the hot spot of diverging on diffuser plate
Radius be greater than the radius that the light that the second back light LED is issued forms the hot spot of diverging on diffuser plate, so, even the
Hot spot between one back light and its opposite apex angle is a single hot spot, due to hot spot brightness from it is intermediate around
It gradually decreases, in the embodiment of the present invention, guarantees that the light of the first back light sending forms arriving for the hot spot of diverging on diffuser plate
The brightness of apex angle is not less than the brightness of other display areas, meets the requirement of brightness uniformity.
The embodiment of the present invention provides a kind of down straight aphototropism mode set, comprising: backboard and the back light being arranged on backboard,
The back light is arranged in matrix form, and the back light includes: the first back light, positioned at the top of matrix form back light
Angle Position；Second back light, above the position in addition to corner position of matrix form back light, the first back light
The second lens are arranged on the second back light in the first lens of upper setting；And the angle of divergence of first lens is greater than described second
The angle of divergence of lens.Using down straight aphototropism mode set provided in an embodiment of the present invention, since the angle of divergence of the first lens is greater than institute
The angle of divergence of the second lens is stated, so the first lens can form bigger light on diffuser plate under same light mixing distance
Spot so that by the first lens formed on diffuser plate the hot spot of diverging to backlight module corner portion brightness and other show
The brightness in region is consistent, therefore using the present invention provides technical solutions, can pass through the biggish diverging of first lens
Angle makes the backlight illumination of the corner portion of backlight module get a promotion, improve backlight module in the prior art it is whole it is luminous not
It is able to satisfy the requirement of brightness uniformity.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of down straight aphototropism mode set, comprising: backboard and the back light being arranged on backboard, the back light are in matrix
Formula arrangement, the back light includes: the first back light, positioned at the corner position of matrix form back light；Second backlight light
Source, positioned at the position in addition to corner position of matrix form back light, which is characterized in that the down straight aphototropism mode set is also wrapped
It includes:
The top of the first back light is arranged in first lens, first lens；
The top of the second back light is arranged in second lens, second lens；
Wherein, the angle of divergence of first lens is greater than the angle of divergence of second lens.
2. down straight aphototropism mode set as described in claim 1, which is characterized in that first lens are reflective lens, described
Second lens are refraction type lens.
3. down straight aphototropism mode set as described in claim 1, which is characterized in that first lens are reflective lens, described
Second lens are reflective lens.
4. down straight aphototropism mode set as described in claim 1, which is characterized in that first lens are refraction type lens, described
Second lens are refraction type lens.
5. the down straight aphototropism mode set as described in claim 1-4 any one, which is characterized in that the back light is luminous two
Grade pipe LED.
6. down straight aphototropism mode set as claimed in claim 5, which is characterized in that
The LED in same a line is arranged in same lamp bar；Or,
The LED in same row is arranged in same lamp bar.
7. down straight aphototropism mode set as claimed in claim 6, which is characterized in that it is described in same lamp bar, and adjacent institute
It is equal to state the distance between LED.
8. down straight aphototropism mode set as claimed in claim 7, which is characterized in that the LED of the neighbouring back plate edges and institute
The distance between back plate edges are stated, are in the distance between the LED in same lamp bar and adjacent less than described.
9. down straight aphototropism mode set as claimed in claim 8, which is characterized in that the distance between adjacent described LED is equal.
10. a kind of liquid crystal display, which is characterized in that including the described in any item down straight aphototropism mode sets of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045350.4A CN109116627A (en) | 2014-11-12 | 2014-11-12 | A kind of down straight aphototropism mode set and liquid crystal display |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636449.7A CN104407472A (en) | 2014-11-12 | 2014-11-12 | Direct-type backlight module and liquid crystal display device |
| CN201811045350.4A CN109116627A (en) | 2014-11-12 | 2014-11-12 | A kind of down straight aphototropism mode set and liquid crystal display |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410636449.7A Division CN104407472A (en) | 2014-11-12 | 2014-11-12 | Direct-type backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109116627A true CN109116627A (en) | 2019-01-01 |
Family
ID=52645114
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811045350.4A Pending CN109116627A (en) | 2014-11-12 | 2014-11-12 | A kind of down straight aphototropism mode set and liquid crystal display |
| CN201410636449.7A Pending CN104407472A (en) | 2014-11-12 | 2014-11-12 | Direct-type backlight module and liquid crystal display device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410636449.7A Pending CN104407472A (en) | 2014-11-12 | 2014-11-12 | Direct-type backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109116627A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205450514U (en) * | 2016-03-22 | 2016-08-10 | 乐视致新电子科技（天津）有限公司 | Backlight module and display equipment |
| CN106019702A (en) * | 2016-06-06 | 2016-10-12 | 广州创维平面显示科技有限公司 | Direct type backlight module and direct type displayer |
| CN107153301A (en) * | 2017-06-21 | 2017-09-12 | 北京小米移动软件有限公司 | Backlight module, display module and electronic equipment |
| CN107179632A (en) * | 2017-07-31 | 2017-09-19 | 厦门天马微电子有限公司 | Backlight module, display module and display device |
| CN116149098B (en) * | 2023-04-18 | 2023-06-27 | 惠科股份有限公司 | Display device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847949A (en) * | 2005-04-15 | 2006-10-18 | 鸿富锦精密工业（深圳）有限公司 | Vertical back light module |
| CN101389897A (en) * | 2006-02-27 | 2009-03-18 | 富士通株式会社 | Illumination device and liquid crystal display device |
| WO2012137765A1 (en) * | 2011-04-06 | 2012-10-11 | シャープ株式会社 | Illumination device, display device, and television receiver device |
| CN102767760A (en) * | 2012-07-06 | 2012-11-07 | 广州市鸿利光电股份有限公司 | Straight-down type liquid crystal television backlight module |
| WO2012165282A1 (en) * | 2011-05-31 | 2012-12-06 | シャープ株式会社 | Illumination device, display device, and television reception device |
| WO2013051437A1 (en) * | 2011-10-03 | 2013-04-11 | シャープ株式会社 | Lighting device, display device and television receiving device |
| CN203404659U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Secondary lens and LED direct type backlight module |
| CN103672588A (en) * | 2013-09-30 | 2014-03-26 | 青岛海信电器股份有限公司 | Backlight module, display device and television |
| JP2014067679A (en) * | 2012-09-27 | 2014-04-17 | Sharp Corp | Liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7641352B2 (en) * | 2006-09-14 | 2010-01-05 | Au Optronics Corporation | LED backlight device with deviated LED pitch |
| JP5848612B2 (en) * | 2012-01-10 | 2016-01-27 | シャープ株式会社 | Surface light source device and liquid crystal display device including the same |
| JP2013152863A (en) * | 2012-01-25 | 2013-08-08 | Sharp Corp | Lighting device and display device having the same |
| JP2014219649A (en) * | 2013-04-09 | 2014-11-20 | 船井電機株式会社 | Display device |
-
2014
- 2014-11-12 CN CN201811045350.4A patent/CN109116627A/en active Pending
- 2014-11-12 CN CN201410636449.7A patent/CN104407472A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847949A (en) * | 2005-04-15 | 2006-10-18 | 鸿富锦精密工业（深圳）有限公司 | Vertical back light module |
| CN101389897A (en) * | 2006-02-27 | 2009-03-18 | 富士通株式会社 | Illumination device and liquid crystal display device |
| WO2012137765A1 (en) * | 2011-04-06 | 2012-10-11 | シャープ株式会社 | Illumination device, display device, and television receiver device |
| WO2012165282A1 (en) * | 2011-05-31 | 2012-12-06 | シャープ株式会社 | Illumination device, display device, and television reception device |
| WO2013051437A1 (en) * | 2011-10-03 | 2013-04-11 | シャープ株式会社 | Lighting device, display device and television receiving device |
| CN102767760A (en) * | 2012-07-06 | 2012-11-07 | 广州市鸿利光电股份有限公司 | Straight-down type liquid crystal television backlight module |
| JP2014067679A (en) * | 2012-09-27 | 2014-04-17 | Sharp Corp | Liquid crystal display device |
| CN203404659U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Secondary lens and LED direct type backlight module |
| CN103672588A (en) * | 2013-09-30 | 2014-03-26 | 青岛海信电器股份有限公司 | Backlight module, display device and television |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104407472A (en) | 2015-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062705B (en) | Large-angle diffusing optical lens | |
| CN102705777B (en) | Secondary lens with bottom of curved surface structure | |
| TWI271585B (en) | Bottom lighting backlight module having uniform illumination and process for manufacturing the same | |
| CN109116627A (en) | A kind of down straight aphototropism mode set and liquid crystal display | |
| CN105334669B (en) | A kind of backlight module and liquid crystal display | |
| CN101893190B (en) | Local dimming backlight module and liquid crystal display applying same | |
| CN102287679A (en) | Light source module and backlight module | |
| US9759852B2 (en) | Lightguide design techniques | |
| CN104460112B (en) | Backlight, LED light bar and display device | |
| CN204513083U (en) | A kind of down straight aphototropism mode set and liquid crystal display | |
| CN203965764U (en) | A kind of straight-down negative shows module and display device | |
| CN103939799A (en) | Backlight module and liquid crystal display device | |
| US9348173B2 (en) | Light source module | |
| CN101956925A (en) | Backlight module and electronic device | |
| TWI582333B (en) | Direct type illumination device and display device | |
| CN108761854B (en) | Light source module group, backlight module and liquid crystal display device | |
| CN204422930U (en) | A kind of down straight aphototropism mode set and display device | |
| CN106896576A (en) | A kind of ultra-thin downward back photo structure | |
| CN204285310U (en) | Optical lens, lamp bar and down straight aphototropism mode set | |
| CN103196097B (en) | A kind of LED quadric cylinder lens for downward back radiant | |
| CN105387425B (en) | Lens, light-emitting device and backlight module | |
| WO2013189116A1 (en) | Direct backlight module and liquid crystal display comprising same | |
| US20170176667A1 (en) | Light guide plate, backlight module and display device | |
| CN104122617A (en) | Light guiding plate and back light module | |
| CN202629915U (en) | Secondary lens with bottom surface in curved surface structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
|
| RJ01 | Rejection of invention patent application after publication |