CN105391926A - Photographing device and backlight module set capable of realizing flash - Google Patents
Photographing device and backlight module set capable of realizing flash Download PDFInfo
- Publication number
- CN105391926A CN105391926A CN201510908501.4A CN201510908501A CN105391926A CN 105391926 A CN105391926 A CN 105391926A CN 201510908501 A CN201510908501 A CN 201510908501A CN 105391926 A CN105391926 A CN 105391926A
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- CN
- China
- Prior art keywords
- backlight
- control circuit
- light source
- photoflash lamp
- backlight module
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- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a photographing device and a backlight module set capable of realizing flash. The backlight module set includes a light source and a light source control circuit electrically connected with the light source; in a backlight display mode, the light source control circuit provides backlight current for the light source to achieve backlight display; in a photographing mode, the light source control circuit provides flash current to the light source to achieve a flash effect. With the backlight module set provided by the above technical scheme of the invention adopted, the problems of uneven light and eye glaring can be solved.
Description
Technical field
The present invention relates to Display Technique field, especially relate to a kind of camera arrangement and can realize glisten backlight module.
Background technology
At present, have the device of camera function, such as mobile phone etc. possess preposition function of taking pictures usually.In prior art, usually adopt a high intense flash LED as preposition light source of taking pictures, this light source is point-source of light.When preposition taking pictures, the LED of employing is taken pictures owing to being auto heterodyne face mostly, makes more dazzling, and single LED lamp luminescence makes uniformity not good, easily causes aperture phenomenon of taking pictures.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of camera arrangement and can realizes the backlight module of flash of light, can solve the problem that light is uneven and dazzling.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of backlight module realizing glistening, this backlight module comprises: light source; Control circuit for light source, is electrically connected with light source, and when backlight display mode, control circuit for light source provides back facet current to light source, and to realize backlight display, when exposal model, control circuit for light source provides flashing current to light source, to realize flash effect.
Wherein, flashing current is greater than back facet current.
Wherein, light source comprises multiple backlight and multiple photoflash lamp; Control circuit for light source comprises the backlight control circuit be electrically connected with backlight and the flashing control circuit be electrically connected with photoflash lamp; Wherein, when backlight display mode, backlight control circuit provides back facet current to backlight, and to realize backlight display, when exposal model, flashing control circuit provides flashing current to photoflash lamp, to realize flash effect.
Wherein, multiple backlight is arranged in series, form a backlight string, multiple photoflash lamp is arranged in series, and forms a Flash lamp string, wherein, one end of backlight string is electrically connected the first positive source, one end electrical connection second source positive pole of Flash lamp string, the other end of backlight string and the other end of Flash lamp string are electrically connected same power cathode, to form backlight loop and photoflash lamp loop respectively;
When backlight display mode, backlight control circuit provides back facet current by backlight loop, and when exposal model, flashing control circuit provides flashing current by photoflash lamp loop.
Wherein, multiple photoflash lamp and multiple backlight alternate intervals are arranged.
Wherein, few one of the quantity of the number ratio backlight of photoflash lamp.
Wherein, the brightness of photoflash lamp is 2 to 4 times of the brightness of backlight.
Wherein, backlight control circuit provides back facet current with while the picture showing different colours on a display panel to backlight, flashing control circuit provides flashing current to realize flash effect to photoflash lamp, wherein, and the colour temperature of photoflash lamp when the picture of display different colours is for controlling to take pictures.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of camera arrangement, it is characterized in that, camera arrangement comprises: as backlight module above; Display floater, is arranged on the light direction of backlight module, for the light that display backlight module sends.
Wherein, the picture of display floater display different colours, backlight control circuit provides back facet current with while the picture showing different colours on a display panel to backlight, flashing control circuit provides flashing current to realize flash effect to photoflash lamp, wherein, the colour temperature of photoflash lamp when the picture of display different colours is for controlling to take pictures.
The invention has the beneficial effects as follows: the situation being different from prior art, the backlight module realizing glistening of the present invention comprises light source and control circuit for light source, wherein control circuit for light source is electrically connected with light source, when backlight display mode, control circuit for light source provides back facet current to light source, to realize backlight display, when exposal model, control circuit for light source provides flashing current to light source, to realize flash effect.Therefore, the present invention utilizes backlight module to realize flash effect, can solve the problem that light is uneven and dazzling.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of camera arrangement that the embodiment of the present invention provides;
Fig. 2 is the structural representation of a kind of backlight module that the embodiment of the present invention provides.
Embodiment
Refer to Fig. 1, Fig. 1 is the structural representation of a kind of camera arrangement that the embodiment of the present invention provides.This camera arrangement 100 comprises display floater 101 and backlight module 102.Wherein, display floater 101 is arranged on the light direction of backlight module 102, and backlight module 102 provides light to display floater 101, the light that display floater 101 display backlight module 102 sends.
Wherein, the light that backlight module 102 sends comprises backlight and flash of light two kinds of light.When normal backlight display, backlight module 102 sends backlight, shows normal picture for display floater 101.When taking pictures moment, display floater 101 shows required picture of taking pictures, and backlight module 102 flashes further, realizes flash effect for display floater 101, and after end of taking pictures, backlight module 102 closes flash of light, and display floater 101 recovers the display of normal backlight.
It should be noted that display floater 101 shows the picture of different colours further as requested when backlight module 102 flashes.Specifically, if do not need colour temperature, then show the picture of a pure white picture, if need colour temperature effect, the picture of a just white colour cast can be sent, as needs are partially red, then send just white partially red picture, realize the adjustable color of flash of light with this.
Wherein, display floater 101 comprises the pixel cell of multiple display R (Red, red), G (Green, green) and B (Blue, blue).Obtained the GTG of R, G and B pixel cell display by the size of the pixel voltage received by R, G and B pixel cell, thus obtain the picture of required colour temperature.
In the present embodiment, camera arrangement 100 is preferably the equipment that mobile phone, camera, panel computer etc. can be taken pictures.Further, preferably preposition the taking pictures of taking pictures in the present embodiment.Therefore, the present embodiment sends by arranging backlight module 102 required flash of light of taking pictures, and is shown by display floater 101, thus obtains uniform area source, can not be dazzling, and portrait of taking pictures can not produce aperture.Further, the present embodiment can also show colored picture when taking pictures, and can control the colour temperature of the light source of backlight module 102 thus, realizes the how middle colour temperature of a light source, improves Consumer's Experience.
The concrete structure of backlight module 102 will be explained below.
Refer to Fig. 2, Fig. 2 is the structural representation of a kind of backlight module that the embodiment of the present invention provides.As shown in Figure 2, the backlight module 102 of the present embodiment comprises light source 121, control circuit for light source 122 and light guide plate 123.Wherein, light guide plate 123 is arranged on the light direction of light source 121, is converted to area source for the light sent by light source 121.Control circuit for light source 122 is electrically connected with light source 121, and when backlight display mode, control circuit for light source 122 provides back facet current to light source 121, to realize backlight display, when exposal model, control circuit for light source 122 provides flashing current to light source 121, to realize flash effect.Wherein, flashing current is greater than back facet current.The brightness that when making to take pictures, display floater 101 shows is greater than the brightness that when normal backlight shows, display floater 101 shows.Usually during normal backlight display the brightness of display floater 101 at 300nit-500nit, the brightness that when the present embodiment is taken pictures, display floater 101 shows can transient rise to 1500nit-2000nit.Owing to being area source display, the brightness of a single point is not high, helpful to human eye eyeshield.
Wherein, light source 121 comprises multiple backlight 124 and multiple photoflash lamp 125.Wherein, multiple backlight 124 is arranged in series, and forms a backlight string, and multiple photoflash lamp 125 is arranged in series, and forms a Flash lamp string.Wherein, one end of backlight string is electrically connected the first positive source A1, one end electrical connection second source positive pole A2 of Flash lamp string, the other end of backlight string and the other end of Flash lamp string are electrically connected same power cathode K, to form backlight loop A1-K and photoflash lamp loop A2-K respectively.
In the present embodiment, multiple photoflash lamp 125 and multiple backlight 124 alternate intervals are arranged, and can realize backlight display effect symmetrically thus.Preferably, few one of the quantity of the number ratio backlight 124 of photoflash lamp 125.In other embodiments, the quantity that can also be set to the quantity of photoflash lamp 125 and backlight 124 is equal.
In the present embodiment, backlight 124 and photoflash lamp 125 are preferably LED, and the brightness of photoflash lamp 125 is 2 to 4 times of the brightness of backlight 124.Preferably, the brightness of backlight 124 is usually at 8-10 lumen, and the brightness of photoflash lamp 125 is then at 30-40 lumen.Photoflash lamp 125 can not work long hours under highlighted high electric current, mainly serves as the effect of flash light source when taking pictures.
Control circuit for light source 122 comprises the backlight control circuit 126 be electrically connected with backlight 124 and the flashing control circuit 127 be electrically connected with photoflash lamp 125.When backlight display mode, backlight control circuit 126 provides back facet current to backlight 124, and to realize backlight display, when exposal model, flashing control circuit 127 provides flashing current to photoflash lamp 125, to realize flash effect.Concrete, when backlight display mode, backlight control circuit 126 provides back facet current by backlight loop A1-K, and when exposal model, flashing control circuit 127 provides flashing current by photoflash lamp loop A2-K.
It should be noted that, when taking pictures, backlight control circuit 126 provides back facet current with while the picture showing different colours on display floater 101 to backlight 124, flashing control circuit 127 provides flashing current to realize flash effect to photoflash lamp 125, wherein, the colour temperature of photoflash lamp when the picture of display different colours is for controlling to take pictures.That is, when taking pictures, backlight control circuit 126 and flashing control circuit 127 all provide corresponding electric current to the LED of correspondence.
In addition, backlight module also comprises reflector plate (not shown) and blooming piece (not shown) etc.Wherein, reflector plate is arranged on the below of light guide plate, for being returned in light guide plate by light reflection.Blooming piece is arranged on the top of light guide plate, carries out even light, light etc. for light light guide plate sent.
In sum, camera arrangement of the present invention can obtain uniform area source when taking pictures, can not be dazzling, and portrait of taking pictures can not produce aperture.Further, the present invention can also show colored picture when taking pictures, and can control the colour temperature of the photoflash lamp of backlight module thus, realizes the how middle colour temperature of a light source, improves Consumer's Experience.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. can realize the backlight module glistened, it is characterized in that, described backlight module comprises:
Light source;
Control circuit for light source, is electrically connected with described light source, when backlight display mode, described control circuit for light source provides back facet current to described light source, to realize backlight display, when exposal model, described control circuit for light source provides flashing current to described light source, to realize flash effect.
2. backlight module according to claim 1, is characterized in that, described flashing current is greater than described back facet current.
3. the backlight module according to any one of claim 1 or 2, is characterized in that, described light source comprises multiple backlight and multiple photoflash lamp;
Described control circuit for light source comprises the backlight control circuit be electrically connected with described backlight and the flashing control circuit be electrically connected with described photoflash lamp;
Wherein, when backlight display mode, described backlight control circuit provides described back facet current to described backlight, and to realize backlight display, when exposal model, described flashing control circuit provides flashing current to described photoflash lamp, to realize flash effect.
4. backlight module according to claim 3, it is characterized in that, multiple described backlight is arranged in series, and forms a backlight string, and multiple described photoflash lamp is arranged in series, form a Flash lamp string, wherein, one end of described backlight string is electrically connected the first positive source, one end electrical connection second source positive pole of described Flash lamp string, the other end of described backlight string and the other end of described Flash lamp string are electrically connected same power cathode, to form backlight loop and photoflash lamp loop respectively;
When backlight display mode, described backlight control circuit provides described back facet current by described backlight loop, and when exposal model, described flashing control circuit provides described flashing current by described photoflash lamp loop.
5. backlight module according to claim 4, is characterized in that, multiple photoflash lamp and multiple described backlight alternate intervals are arranged.
6. backlight module according to claim 5, is characterized in that, few one of the quantity of backlight described in the number ratio of described photoflash lamp.
7. backlight module according to claim 6, is characterized in that, the brightness of described photoflash lamp is 2 to 4 times of the brightness of described backlight.
8. backlight module according to claim 3, it is characterized in that, described backlight control circuit provides back facet current with while the picture showing different colours on a display panel to described backlight, described flashing control circuit provides flashing current to realize flash effect to described photoflash lamp, wherein, the colour temperature of described photoflash lamp when the picture of display different colours is for controlling to take pictures.
9. a camera arrangement, is characterized in that, described camera arrangement comprises:
Backlight module as described in any one of claim 1-8;
Display floater, is arranged on the light direction of described backlight module, for showing the light that described backlight module sends.
10. camera arrangement according to claim 9, it is characterized in that, the picture of described display floater display different colours, described backlight control circuit provides back facet current with while the picture showing different colours on said display panel to described backlight, described flashing control circuit provides flashing current to realize flash effect to described photoflash lamp, wherein, the colour temperature of described photoflash lamp when the picture of display different colours is for controlling to take pictures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908501.4A CN105391926A (en) | 2015-12-09 | 2015-12-09 | Photographing device and backlight module set capable of realizing flash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908501.4A CN105391926A (en) | 2015-12-09 | 2015-12-09 | Photographing device and backlight module set capable of realizing flash |
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| Publication Number | Publication Date |
|---|---|
| CN105391926A true CN105391926A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908501.4A Pending CN105391926A (en) | 2015-12-09 | 2015-12-09 | Photographing device and backlight module set capable of realizing flash |
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Cited By (4)
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| CN106094393A (en) * | 2016-08-11 | 2016-11-09 | 圣邦微电子（北京）股份有限公司 | Portable electric appts screen backlight is used to carry out the method and apparatus of light filling |
| CN109074782A (en) * | 2016-12-09 | 2018-12-21 | 华为技术有限公司 | A kind of mobile device and its method for controlling backlight thereof, flash of light calibration method and device |
| CN109917604A (en) * | 2019-04-21 | 2019-06-21 | 深圳市星辰光华科技有限公司 | Portable light compensating lamp |
| WO2020133814A1 (en) * | 2018-12-29 | 2020-07-02 | 武汉华星光电半导体显示技术有限公司 | Method and device for light compensation for under-oled-screen camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106094393A (en) * | 2016-08-11 | 2016-11-09 | 圣邦微电子（北京）股份有限公司 | Portable electric appts screen backlight is used to carry out the method and apparatus of light filling |
| CN109074782A (en) * | 2016-12-09 | 2018-12-21 | 华为技术有限公司 | A kind of mobile device and its method for controlling backlight thereof, flash of light calibration method and device |
| CN109074782B (en) * | 2016-12-09 | 2021-02-26 | 华为技术有限公司 | Mobile equipment and backlight control method and flash calibration method and device thereof |
| WO2020133814A1 (en) * | 2018-12-29 | 2020-07-02 | 武汉华星光电半导体显示技术有限公司 | Method and device for light compensation for under-oled-screen camera |
| CN109917604A (en) * | 2019-04-21 | 2019-06-21 | 深圳市星辰光华科技有限公司 | Portable light compensating lamp |
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Application publication date: 20160309 |