CN106773318A - Display device - Google Patents
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- Publication number
- CN106773318A CN106773318A CN201710040920.XA CN201710040920A CN106773318A CN 106773318 A CN106773318 A CN 106773318A CN 201710040920 A CN201710040920 A CN 201710040920A CN 106773318 A CN106773318 A CN 106773318A
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- Prior art keywords
- backlight
- light
- display device
- light source
- period
- Prior art date
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Links
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 20
- 239000002096 quantum dot Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002159 nanocrystal Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- G02F1/133621—Illuminating devices providing coloured light
-
- 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
-
- 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
- G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
Abstract
The invention provides a display device, which comprises a display panel, a backlight module and a control module. The backlight module is arranged on one side or the back side of the display panel and used for providing backlight required by the display of the display panel, the backlight module comprises a first light source and a second light source, the light generated by the first light source in a first time period in a picture frame has a peak at the wavelength of 320nm to 420nm, the light generated by the second light source in a second time period in the picture frame has a peak at the wavelength of 420nm to 480nm, and the control module is used for controlling the first light source to be started in the first time period and controlling the second light source to be started in the second time period. The invention can improve the penetration efficiency and the color saturation of the display device by controlling the first light source and the second light source to be alternately switched on and off.
Description
Technical field
The present invention is on a kind of display device, particularly a kind of display device for improving color saturation.
Background technology
It is the material using the photosensitive pigment containing metal as color displays in current TFT-LCD panel color optical filters.
On color and optical performance, because its radiation spectra is too wide, current its color rendering of CF is poor, and excitation is relatively low；Though increase film
Thickness can improve its color saturation, but can reduce the overall penetrance of panel simultaneously.
Quantum dot (Quantum Dot) is a kind of embedded photoluminescent material, can be lighted again after absorbable backlight, with being equal to
Or be semi-conducting material composition, compared to tradition less than about 10 nanometers of nanocrystals of the diameter of (nm) (nano crystal)
Photosensitive pigment, quantum dot produces more dense light and with high stability in narrower wavelength band.Turn because quantum dot has
The function of wavelength is changed, therefore quantum dot can be placed in optical filter, replace original color blocking.Therefore, how to be arranged in pairs or groups using quantum dot
The selection of backlight, to reach wide colour gamut and improve penetrance, actually one of those skilled in the art of the present technique's emphasis of interest.
The content of the invention
The present invention provides a kind of display device, to improve the color saturation and penetrance of display device.
Disclosed herein a kind of display device, comprising display panel, backlight module and control module.Backlight module sets
Side or the dorsal part of the display panel are placed in, are used to provide backlight required when display panel shows, the backlight module includes the
One light source and secondary light source, the light produced by the first period of first light source during a picture frame is in wavelength 320nm to wavelength
420nm has a crest, and the light produced by the second period of the secondary light source during the picture frame is in wavelength 420nm to wavelength
480nm has a crest, and control module is used to control first light to come from the unlatching of the first period, controls the secondary light source in second
Period opens.
In sum, the present invention utilizes the first light source of control (UV light sources) and secondary light source (blue-light source) alternation switch, from
And control display device penetrate efficiency and color saturation, improve makes liquid crystal deteriorate or single blueness using single UV light sources
LED light source causes the problem that Lou blue light declines color saturation.
More than explanation on present invention and the explanation of following implementation method be to demonstrate and explain this hair
Bright spirit and principle, and claim of the invention is provided further explains.
Brief description of the drawings
Fig. 1 is the display device profile according to depicted in one embodiment of the invention.
Fig. 2 is the display device profile according to depicted in another embodiment of the present invention.
Fig. 3 is the display device schematic diagram according to depicted in another embodiment of the present invention.
Fig. 4 A are the display device profile according to depicted in Fig. 3 embodiments.
Fig. 4 B are the display device profile according to depicted in Fig. 3 embodiments.
Fig. 5 is the display device schematic diagram according to depicted in another embodiment of the present invention.
Symbol description：
100~300 display devices
500 display devices
10 display panels
20 backlight modules
40 backlight modules
50 control modules
110 first substrates
120 tft layers
130 display mediums
140 chromatic filter layers
140a first wave length conversion layers
140b second wave length conversion layers
The wavelength conversion layers of 140c the 3rd
140x backlight penetrated beds
150 second substrates
160 UV light barrier layers
CL1, CL2, BL light
Specific embodiment
Hereinafter detailed features of the invention and advantage are described in detail in embodiments, its content is enough to make any ability
Field technique personnel understand technology contents of the invention and implement according to this, and content, application right according to disclosed by this specification
It is required that and schema, it is any skilled person readily understands that related purpose and advantage of the invention.Following embodiment
It is to further describe viewpoint of the invention, but it is non-anyways to limit scope of the invention, it is attached with reference to specification
The invention will be further described for figure.
In the word (terms) that full piece specification and claim are used, in addition to having and especially indicating, generally with each
Word using in the content invented in this area, herein with special content in usual meaning.
Fig. 1 is an embodiment schematic diagram of display device of the present invention 100.As shown in figure 1, display device 100 includes display
Panel 10 and backlight module 20, in the present embodiment, the dorsal part that backlight module 20 is arranged at display panel 10 is (as shown in Figure 1
Direct-type backlight), but the present invention is not limited, and backlight module 20 also may be disposed at side (for example, side of display panel 10
Enter formula backlight).Display panel 10 is colored comprising a first substrate 110, a tft layer 120, a display medium 130,
The second substrate 150 of filter layer 140 and.In the present embodiment, backlight module 20 includes the UV light that can produce ultraviolet light
Source, it is however generally that, the light frequency spectrum produced by UV light sources has a crest in wavelength 320nm to wavelength 420nm.Chromatic filter layer
140 include first wave length conversion layer 140a, second wave length conversion layer 140b and the 3rd wavelength conversion layer 140c.First wave length turns
Change a layer 140a and include red quantum dot material, for absorbing ultraviolet light to inspire red light, second wave length conversion layer
140b includes green quanta point material, for absorbing ultraviolet light to inspire green light, the 3rd wavelength conversion layer 140c bags
Containing blue quanta point material, for absorbing ultraviolet light to inspire blue light.Display medium 130 has regulation luminous flux
Characteristic, for example, liquid crystal molecule.The present embodiment using ultraviolet light excitation quantum point material there is bloom to penetrate efficiency and color high
The advantage of color saturation degree.
However, using ultraviolet light as backlight when, display medium 130 may because long-time receive ultraviolet light
Irradiate and accelerated deterioration.On the other hand, because blue quanta point material is difficult to obtain, may be such that production cost increases.
Fig. 2 is another embodiment schematic diagram of display device of the present invention 200.As shown in Fig. 2 display device 200 is comprising aobvious
Show panel 10 and backlight module 30, in the present embodiment, the setting of backlight module 30 can mode as the aforementioned, do not add to go to live in the household of one's in-laws on getting married herein
State.Display panel 10 includes a first substrate 110, a tft layer 120, a display medium 130, a chromatic filter layer
140 and a second substrate 150.In the present embodiment, backlight module 30 includes a LED light source that can produce blue light, it is general and
Speech, the light frequency spectrum produced by blue light has an at least crest in wavelength 420nm to wavelength 480nm.Chromatic filter layer 140 is included
First wave length conversion layer 140a, second wave length conversion layer 140b and backlight penetrated bed 140x.First wave length conversion layer 140a bags
Containing red quantum dot material, for absorbing blue light to inspire red light, second wave length conversion layer 140b includes amount of green color
Son point material, for absorbing blue light to inspire green light, backlight penetrated bed 140x can be transparent photoresistance or without photoresistance, use
To transmit the blue light that backlight is sent.The present embodiment utilizes blue light LED light source excitation quantum point material, still with higher
Light penetrates the advantage of efficiency, and can improve and deteriorated using display medium caused by UV light sources and blue quanta point material is difficult to take
The problem for obtaining.
However, using blue light LED light source as backlight when, blue light is by red quantum dot material or green quantum dot material
During material, and red light and green light cannot be completely converted into, therefore blue light passes through first wave length conversion layer 140a and the second ripple
The situation of blue light leak is had during conversion layer 140b long, the problem of color saturation decline is in turn resulted in.
Fig. 3 is another embodiment schematic diagram of display device of the present invention 300.As shown in figure 3, display device 300 is comprising aobvious
Show panel 10, backlight module 40 and control module 50, in the present embodiment, the setting of backlight module 40 can mode as the aforementioned,
Do not add to repeat herein.Backlight module 40 includes the first light source 301a and secondary light source 301b, the electrical connection of control module 50 first
Light source 301a and secondary light source 301b.Light CL1 produced by first light source 301a has in wavelength 320nm to wavelength 420nm
One crest, is used to launch UV light；And the light CL2 produced by secondary light source 301b has extremely in wavelength 420nm to wavelength 480nm
A few crest, is used to launch blue light.It is interior during a display picture frame, the first period and the second period can be divided into, wherein when first
Section can partly overlap or completely not overlap with the second period.Control module 50 controls the first light source 301a points in the first period
It is bright, make backlight module 40 produce the light CL1 of UV light to enter display panel 10, control module 50 controls the second light in the second period
Source 301b is lighted, and makes backlight module 40 produce the light CL2 of blue light to enter display panel 10, during a display picture, by
The alternating of timing opens the first light source 301a and secondary light source 301b, and display device 300 can be made to be in low drain in the first period
Blue light pattern, so that the tool high color saturation of display panel 10, is in without UV optical modes in the second period, can prevent display surface
Plate 10 is deteriorated.
Further illustrate the low drain blue light pattern and the operating method without UV optical modes of Fig. 3 embodiments.Please also refer to figure
The display panel 10 of 4A and Fig. 4 B, Fig. 4 A includes a first substrate 110, a tft layer 120, a display medium 130,
The second substrate 150 of chromatic filter layer 140 and.Chromatic filter layer 140 turns comprising first wave length conversion layer 140a, second wave length
Change layer 140b and backlight penetrated bed 140x.First wave length conversion layer 140a includes red quantum dot material, for absorbing the back of the body
To inspire red light, second wave length conversion layer 140b includes green quanta point material to light BL, for absorbing backlight BL to swash
Send green light, backlight penetrated bed 140x can be transparent photoresistance or without photoresistance, for transmitting the backlight that backlight is sent
BL.In the first period, the control of control module 50 first light source (UV light sources) 301a is lighted, and closes secondary light source (blue-light source)
301b.Light CL1 (i.e. UV light) produced by first light source 301a is changed by first wave length conversion layer 140a and second wave length
Layer 140b launches red light R and green light G respectively, to avoid UV light that wound is directly caused to human eye by backlight penetrated bed 140x
Evil, can set a UV light barrier layer 160 (UV-cut layer) on second substrate 150.
Refer to Fig. 4 B.In the second period, the control of control module 50 secondary light source (blue-light source) 301b is lighted, and is closed
First light source (UV light sources) 301a.Light CL2 (i.e. blue light) produced by secondary light source 301b passes through first wave length conversion layer
140a, second wave length conversion layer 140b and the 3rd wavelength conversion layer 140x launch red light R, green light G and blue light respectively
B。
Furthermore, the length design of the first period and the second period can be adjusted according to user's demand, and citing comes
Say, when the first period of adjustment was more than for the second period, then display device has the effect of high saturation.
Fig. 5 is another embodiment schematic diagram of display device of the present invention 500.As shown in figure 5, display device 500 is comprising aobvious
Show panel 10 and backlight module 40, the present embodiment is with the difference of the display device 400 of Fig. 4 A and Fig. 4 B, display device 500
Chromatic filter layer 140 be configured between first substrate 110 and display medium 130, that is, use Color Filter on
The framework collocation sequential type backlight module 40 of Array (COA).
In summary described, display device of the present invention utilizes sequential type backlight module, control UV light and blue light alternation switch,
Efficiency and color saturation are penetrated so as to control display device, improve makes liquid crystal deteriorate or single blueness using single UV light sources
LED light source causes the problem that Lou blue light declines color saturation.
Although this case is disclosed above with embodiment, so it is not limited to this case, any those skilled in the art,
Do not depart from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore the protection domain of this case is appended when regarding
As defined in claim be defined.
Claims (10)
1. a kind of display device, it is characterised in that include：
One display panel；
One backlight module, is arranged at side or the dorsal part of the display panel, is used to provide a back of the body required when display panel shows
Light, the backlight module is included：
One first light source, the light produced by one first period of first light source during a picture frame is in wavelength 320nm to ripple
420nm long has a crest；And
One secondary light source, the light produced by one second period of the secondary light source during the picture frame is in wavelength 420nm to ripple
480nm long has an at least crest；And
One control module, electric property coupling first light source and the secondary light source, are used to control first light to come from first period
Open, control the secondary light source to be opened in second period.
2. display device as claimed in claim 1, it is characterised in that first period partly overlaps or complete with second period
Do not overlap entirely.
3. display device as claimed in claim 1, it is characterised in that the display panel is included：
One first substrate；
One second substrate, is arranged at the side of the first substrate；And
One chromatic filter layer, is arranged between the first substrate and the second substrate, and the chromatic filter layer includes a first wave length
Conversion layer, a second wave length conversion layer and a backlight penetrated bed.
4. display device as claimed in claim 3, it is characterised in that the first wave length conversion layer includes red quantum dot material
Material, for absorbing the backlight to inspire red light, the second wave length conversion layer includes green quanta point material, for absorbing
To inspire green light, the backlight penetrated bed is used for transmitting the backlight that backlight is sent the backlight.
5. display device as claimed in claim 4, it is characterised in that the display panel also includes a UV light barrier layers, if
It is placed in second substrate top.
6. display device as claimed in claim 1, it is characterised in that the display panel is included：
One first substrate；
One second substrate；And
One chromatic filter layer, is arranged between the first substrate and a display medium, and the chromatic filter layer includes a first wave length
Conversion layer, a second wave length conversion layer and a backlight penetrated bed.
7. display device as claimed in claim 6, it is characterised in that the first wave length conversion layer includes red quantum dot material
Material, for absorbing the backlight to inspire red light, the second wave length conversion layer includes green quanta point material, for absorbing
To inspire green light, the backlight penetrated bed is used for transmitting the backlight that backlight is sent the backlight.
8. display device as claimed in claim 7, it is characterised in that the display panel also includes a UV light barrier layers, if
It is placed in second substrate top.
9. the display device as described in any one of claim 3 to 7, it is characterised in that first period and second period portion
Divide and overlap or do not overlap completely.
10. the display device as described in any one of claim 3 to 7, it is characterised in that first period more than this second when
Section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105133556 | 2016-10-18 | ||
| TW105133556A TWI588574B (en) | 2016-10-18 | 2016-10-18 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106773318A true CN106773318A (en) | 2017-05-31 |
| CN106773318B CN106773318B (en) | 2020-03-20 |
Family
ID=58944801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710040920.XA Active CN106773318B (en) | 2016-10-18 | 2017-01-17 | Display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106773318B (en) |
| TW (1) | TWI588574B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI698843B (en) * | 2018-11-27 | 2020-07-11 | 友達光電股份有限公司 | Display panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100141568A1 (en) * | 2008-12-05 | 2010-06-10 | Lee Sang-Jin | Liquid crystal display |
| CN103680420A (en) * | 2013-09-05 | 2014-03-26 | 友达光电股份有限公司 | Display device |
| CN104091571A (en) * | 2014-06-30 | 2014-10-08 | 京东方科技集团股份有限公司 | Display system |
| CN104133320A (en) * | 2014-08-20 | 2014-11-05 | 深圳市华星光电技术有限公司 | Color liquid crystal display module structure and backlight module thereof |
| CN104854652A (en) * | 2012-12-03 | 2015-08-19 | 夏普株式会社 | Display device and television reception device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015102857A (en) * | 2013-11-28 | 2015-06-04 | 富士フイルム株式会社 | Light conversion member, backlight unit, liquid crystal display device, and method for manufacturing light conversion member |
| CN105202483A (en) * | 2014-06-20 | 2015-12-30 | 业鑫科技顾问股份有限公司 | Backlight module and display device |
| JP6305319B2 (en) * | 2014-11-14 | 2018-04-04 | 富士フイルム株式会社 | Wavelength conversion member, backlight unit including the same, liquid crystal display device, and method for manufacturing wavelength conversion member |
| CN104409592A (en) * | 2014-11-26 | 2015-03-11 | 京东方科技集团股份有限公司 | LED (light emitting diode), light guide plate, backlight module and display device |
| CN105911766A (en) * | 2016-06-16 | 2016-08-31 | 青岛海信电器股份有限公司 | Quantum dot light-emitting device, backlight module and liquid crystal display device |
-
2016
- 2016-10-18 TW TW105133556A patent/TWI588574B/en active
-
2017
- 2017-01-17 CN CN201710040920.XA patent/CN106773318B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100141568A1 (en) * | 2008-12-05 | 2010-06-10 | Lee Sang-Jin | Liquid crystal display |
| CN104854652A (en) * | 2012-12-03 | 2015-08-19 | 夏普株式会社 | Display device and television reception device |
| CN103680420A (en) * | 2013-09-05 | 2014-03-26 | 友达光电股份有限公司 | Display device |
| CN104091571A (en) * | 2014-06-30 | 2014-10-08 | 京东方科技集团股份有限公司 | Display system |
| CN104133320A (en) * | 2014-08-20 | 2014-11-05 | 深圳市华星光电技术有限公司 | Color liquid crystal display module structure and backlight module thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201816486A (en) | 2018-05-01 |
| CN106773318B (en) | 2020-03-20 |
| TWI588574B (en) | 2017-06-21 |
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