CN109147562A - Display device and its control method - Google Patents
Display device and its control method Download PDFInfo
- Publication number
- CN109147562A CN109147562A CN201811112989.XA CN201811112989A CN109147562A CN 109147562 A CN109147562 A CN 109147562A CN 201811112989 A CN201811112989 A CN 201811112989A CN 109147562 A CN109147562 A CN 109147562A
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- Prior art keywords
- light
- shell
- display device
- light source
- thermally conductive
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
This application discloses a kind of display device and its control methods, display device includes shell, be fixedly connected with first light source and the first light guide plate on the shell, the light that first light guide plate is used to that the first light source to be guided to issue, to the shell on rear side of periphery inclination be divergent.Above scheme, the light of first light source, to shell on rear side of periphery inclination be divergent, gradually decrease light intensity to the periphery from display device, form more soft bias light, alleviate the burden of human eye.
Description
Technical field
The present invention relates generally to field of display technology, and in particular to display device and its control method.
Background technique
TV is the important tool of a kind of acquisition of information and amusement.With the progress of display technology, the size of TV is also got over
Come bigger, but in domestic applications, is limited to the size in room, there is no great improvement for the distance of viewing, in addition, TV
The image quality of itself is also higher and higher, and color is more and more brighter gorgeous, for the people of long-time viewing, is easy to cause vision tired
Labor.
Especially when environment light weakens, for example situations such as turning off the light at night, goes down viewing, and television image switching flashes more
The burden to human eye is aggravated.Conventional way is to open lamp source, as on video wall shot-light or roof pendent lamp increase environment
The intensity of light reduces this burden.But both light sources, shot-light is for decorating, light beam acute irradiation highlights domain on TV
Obviously, and for ceiling light for usually illuminating, itself being irradiated on TV has certain inverted image, and two all influence viewing.Meanwhile two
Person is the light source of constant brightness, and the brightness of environment is in continuous gradual change, if being only used for opening while watching tv slow
Solution fatigue, power consumption are also comparable big.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of display device and its control method, to
Light filling is carried out according to the brightness of environment, to reduce or eliminate visual fatigue caused by screen switching flashing.
In a first aspect, the present invention provides a kind of display device, including shell, first light source is fixedly connected on the shell
And first light guide plate, the light that first light guide plate is used to that the first light source to be guided to issue, to the shell on rear side of it is outer
Inclination is enclosed to be divergent.
Further, the first light source is fixedly installed in the shell, is provided with through slot on the shell, and described
One light guide plate, which coincide, to be installed in the through slot.
Further, the surrounding of the shell is provided with first light guide plate, and the light of first light guide plate is incident
The equal face in face is provided with the first light source.
Further, the protrusion of light transmission is laid on the light incident surface.
Further, the protrusion is structure as a whole with first light guide plate.
Further, the arrangement density in the direction along the shell from inside to outside, the protrusion successively reduces, the protrusion
Volume be sequentially increased, and the height of each protrusion is identical.
Further, reflectance coating, the second light guide plate, optics module and display have been sequentially arranged in the shell from back to front
Component；Lamp group is provided at the position of second light guide plate described in face, the lamp group includes installation part, second light source and described
One light source, the second light source and the first light source are placed in the two sides of the installation part, described in the second light source face
Second light guide plate；Glue frame is fixedly connected in the shell, the rear end of the installation part and the reflectance coating overlap, the installation
The front end of part and the glue frame top only cooperate.
Further, the installation part is the thermally conductive item that section is in corner cut rectangle, on the long side face of the thermally conductive item, along institute
State that thermally conductive length direction is uniformly distributed the first LED light；On the chamfer of the thermally conductive item, along the thermally conductive length direction
Uniformly distributed to have the second LED light, the long side face is provided with the first power supply line connecting with each first LED light, described to cut
Edged surface is provided with the second source line connecting with each second LED light；Alternatively,
The installation part is the thermally conductive item that section is in corner cut rectangle, and described thermally conductive article of long side face is provided with the first PCB, institute
It states and is uniformly arranged the first LED light, each first LED light and the first PCB along the thermally conductive article of length direction on the first PCB
On the first printing power supply line connection, thermally conductive article of the chamfer is arranged the 2nd PCB, along described thermally conductive on the 2nd PCB
Length direction is uniformly arranged the second LED light, and the second printing power supply line in each second LED light and the 2nd PCB connects
It connects.
Further, the angle of corner cut is between 20-70 degree.
On the other hand, the present invention provides a kind of control method of above-mentioned display device, comprising the following steps:
Obtain brightness value current in environment；
Judge whether the brightness value is less than light filling threshold value, if so, corresponding with light filling brightness according to brightness value
Relationship adjusts the first light source to corresponding light filling brightness.
The above scheme of the application, the light of first light source, to shell on rear side of periphery inclination be divergent, make light intensity from
Display device gradually decreases to the periphery, forms more soft bias light, alleviates the burden of human eye.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the usage state diagram for the display device that the embodiment of the present invention provides；
Fig. 2 is the Local map for the display device that the embodiment of the present invention provides；
Fig. 3 is the schematic diagram at the first light guide plate position of the embodiment of the present invention；
Fig. 4 is the front view of the light incident surface of the embodiment of the present invention；
Fig. 5 is the main view of the lamp group of the embodiment of the present invention；
Fig. 6 is the bottom view of Fig. 5；
Fig. 7 is the left view of Fig. 5；
Fig. 8 is the sectional view of the lamp group of the embodiment of the present invention another kind structure；
Fig. 9 is the flow chart of the control method of display device provided in an embodiment of the present invention；
Figure 10 is the corresponding relationship of brightness value and light filling brightness.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1-3, the embodiment of the present invention provides a kind of display device, including shell 12, it is fixedly connected on shell 12
There are first light source 6 and the first light guide plate 5, the light that the first light guide plate 5 is used to that first light source 6 to be guided to issue, to 12 rear side of shell
Periphery inclination be divergent.
Display device can be TV, computer monitor etc..
First light source 6 can be, but not limited to as strip-shaped light source.First light guide plate 5 can be and the matched item of first light source 6
Shape light guide plate.
The width that first light guide plate 5 can be light inlet side is less than the width of light outgoing side, so that light is to be in
Divergent shape outgoing, form a biggish illumination region 2.In addition, the periphery inclination of the first light guide plate 5 towards shell 12 is set
It sets, so that emergent light is emitted towards the periphery of shell 12 namely outside.
Using the above structure, the light of first light source 6 is divergent to the periphery inclination of 12 rear side of shell, forms certainly
Display device edge starts the wall after display device and projects the light to die down gradually, light and the diffusing reflection that can pass through wall
Afterwards, it has been mixed to form more soft bias light with the light in environment, has reduced the burden to glasses 4.
Further, in order to protect to first light source 6, and manufacturing cost is reduced, the fixation of first light source 6 can be set
It is placed in shell 12, through slot is provided on shell 12, the first light guide plate 5, which coincide, to be installed in through slot.It adopts the structure, it can be with
Only on the basis of original shell 12, the through slot of setting the first light guide plate 5 of installation is small to the mold change of production shell 12,
It reduces costs.In addition, first light source 6 is arranged in shell 12, the space in shell 12 can be made full use of, shell 12 is provided
The utilization rate of inner space, while being also convenient for protecting first light source 6, prevent accidental injury first light source 6.
Further, in order to keep the environment light on rear side of display device more uniform, is provided in the surrounding of shell 12
The equal face of light incident surface of one light guide plate 5, the first guide-lighting 5 plates is provided with first light source 6.
Further, in order to make the light intensity of outgoing have the effect of gradual change, the light and environment light for being emitted it are better
Fusion, then be laid with the protrusion 18 of light transmission on light incident surface 14, to carry out diffusing reflection to light.Transparent protrusion 18 is for example but not
It is limited to be cylindric.
Further, protrusion 18 is structure as a whole with the first light guide plate 5.The material of first light guide plate 5 can be poly- methyl
Methyl acrylate or glass can form protrusion 18 by forms such as laser engravings.
Further, it see also Fig. 4, along the direction of shell 12 from inside to outside (such as by the side of lower-left to upper right in Fig. 3
To), the arrangement density of protrusion 18 successively reduces, and the volume of protrusion 18 is sequentially increased, and each raised 18 height is identical, using this
Kind structure, can provide the diffusing reflection effect of light to greatest extent, improve the mildness of light.
Further, be sequentially arranged from back to front in shell 12 reflectance coating 11, the second light guide plate 10, optics module 9 and
Display component 8, wherein reflectance coating 11, the second light guide plate 10, optics module 9 and display component 8 can in existing display device
Corresponding component it is identical, its concrete mechanism is not repeated here；It is provided with lamp group at the position of the second light guide plate of face 10,
Lamp group includes installation part 12, second light source 13 and first light source 6, and second light source 13 and first light source 6 are placed in installation part 12
Two sides, 13 the second light guide plate of face 10 of second light source；Glue frame 7, the rear end of installation part 12 and reflection are fixedly connected in shell 12
Film 11 overlaps, and the front end of installation part 12 and the top of glue frame 7 only cooperate.
Second light source 13 is such as, but not limited to strip-shaped light source.
The rear end of installation part 12 and reflectance coating 11 overlap, and the front end of installation part 12 and the top of glue frame 7 only cooperate, so that the first light
Mutually indepedent between source 6 and second light source 13, the light issued between the two is not in mutual interference.
Further, as illustrated in figs. 5-7, installation part 12 is the thermally conductive item that section is in corner cut rectangle, corner cut mentioned here
Rectangle is shape of the rectangle after Yi Jiaochu does chamfered.The material of thermally conductive item is such as, but not limited to aluminium alloy, to utilize
It radiates with good thermal conductivity, and thermally conductive item can carry out extruding formation using aluminum alloy bar.The long side face of thermally conductive item
On (face where corner cut rectangle long side), along uniformly distributed the first LED light having as second light source 13 of thermally conductive length direction；
On the chamfer (face where the side that corner cut rectangle chamfering is formed) of thermally conductive item, have second along thermally conductive length direction is uniformly distributed
LED light, long side face are provided with the first power supply line connecting with each first LED light, and chamfer is provided with to be connect with each second LED light
Second source line.First LED light and the 2nd LED are independent controls, and the brightness of the first LED light can be controlled by inductance,
To adapt to the variation of environment light.Back light of 2nd LED as display device, normally shows for display device and provides light source.
It see also Fig. 8, installation part 12 is the thermally conductive item that section is in corner cut rectangle, and the long side face of thermally conductive item is provided with first
The first LED light as second light source 13, each first LED are uniformly arranged along thermally conductive article of length direction on PCB15, the first PCB15
Lamp is connect with the first printing power supply line on the first PCB15, and the 2nd PCB16, edge on the 2nd PCB16 is arranged in thermally conductive article of chamfer
Thermally conductive length direction is uniformly arranged the second LED light as first light source 6, each second LED light and second on the 2nd PCB16
Print power supply line connection.
It, can be equal in long side face and chamfer respectively for the ease of carrying out installation fixation to the first PCB15 and the 2nd PCB16
Two parallel convex ribs 17 are set, form accommodating space between two convex ribs 17, the first PCB15 and the 2nd PCB16 are installed in pair respectively
In the accommodating space answered.
Further, the angle of corner cut is between 20-70 degree, so that light has preferable shooting angle, it is display dress
It postpones and is irradiated on the wall in portion by as big as possible, and bright gradual change can be improved.
As shown in figure 9, the present invention provides a kind of control method of above-mentioned display device, comprising the following steps:
S1: brightness value current in environment is obtained；
Display device is illustrated by taking TV as an example in the present embodiment.
It see also Fig. 1, light intensity sensor be installed in the remote controler 3 of TV 1, be used to measure current bright in environment
Present intensity value is sent to the control system of TV 1 by infrared communication by angle value, remote controler 3.
A switch can be set on remote controler 3 to control the working condition of light intensity sensor.
S2: judging whether the brightness value is less than light filling threshold value, if so, according to pair of brightness value and light filling brightness
It should be related to, adjust the first light source to corresponding light filling brightness.
When the control system of TV receives current brightness value, it is compared with light filling threshold value, light filling threshold value is used
Need to open the brightness value of light filling in characterization, it is corresponding with light filling brightness according to brightness value if brightness value is less than light filling threshold value
Relationship, adjustment first light source to corresponding light filling brightness.
Brightness value and the corresponding relationship of light filling brightness may refer to shown in Figure 10, Tu10Zhong, and abscissa is time t, indulges and sit
It is designated as bright lXVariation, wherein brightness value is smaller, then light filling brightness is bigger.
Below with a period of time in actual life, as being illustrated for the time in the afternoon to evening.Such as, t0 is at 1 point in afternoon,
Corresponding ambient brightness lx3It is most bright, t is arrived over time1In at 5 points in afternoon, during which brightness slowly reduces, and in t1To t2For afternoon 5
To 7 points at night, environment bright is strongly reduced until complete day black luminance is l pointx0.In whole process, capable of being opened by one key remote controler
The switch of light intensity sensor is controlled, light intensity sensor incudes environmental light brightness, when brightness is lower than lx1When this threshold value, then light is opened
Compensation is learned, by the environment bright l of the luminous intensity compensation in environment light to suitable viewingx2, and this enhanced ring is maintained always
Border light.If environment light is higher than this l simultaneouslyx2, side is without opening compensatory light.
Always on light sensation monitoring is not needed in actual use, but itself needs to mend according to practical viewer
It is then turned on when repaying, the brightness l that the mankind are averagely openedXIt is set in lx0With lx1Between, in this way, can also in the case where plug and play
Directly to open compensation environment light source.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of display device, including shell, which is characterized in that be fixedly connected with first light source and the first leaded light on the shell
Plate, the light that first light guide plate is used to that the first light source to be guided to issue, to the shell on rear side of periphery inclination diverging
Outgoing.
2. display device according to claim 1, which is characterized in that the first light source is fixedly installed on the shell
It is interior, through slot is provided on the shell, first light guide plate, which coincide, to be installed in the through slot.
3. display device according to claim 1 or 2, which is characterized in that the surrounding of the shell is provided with described
The equal face of light incident surface of one light guide plate, first light guide plate is provided with the first light source.
4. display device according to claim 3, which is characterized in that be laid with the protrusion of light transmission on the light incident surface.
5. display device according to claim 4, which is characterized in that the protrusion is integrated knot with first light guide plate
Structure.
6. display device according to claim 4, which is characterized in that described convex along the direction of the shell from inside to outside
The arrangement density risen successively reduces, and the volume of the protrusion is sequentially increased, and the height of each protrusion is identical.
7. display device according to claim 6, which is characterized in that be sequentially arranged reflection from back to front in the shell
Film, the second light guide plate, optics module and display component；Lamp group, the lamp are provided at the position of second light guide plate described in face
Group includes installation part, second light source and the first light source, and the second light source and the first light source are placed in the installation
The two sides of part, the second light guide plate described in the second light source face；Glue frame is fixedly connected in the shell, the installation part
Rear end and the reflectance coating overlap, and the front end of the installation part and the glue frame top only cooperate.
8. display device according to claim 7, which is characterized in that the installation part is section in the thermally conductive of corner cut rectangle
Item on the long side face of the thermally conductive item, has the first LED light along the thermally conductive length direction is uniformly distributed；The thermally conductive item
On chamfer, there is the second LED light along the thermally conductive length direction is uniformly distributed, the long side face is provided with and each described first
First power supply line of LED light connection, the chamfer are provided with the second source line connecting with each second LED light；Alternatively,
The installation part is the thermally conductive item that section is in corner cut rectangle, and described thermally conductive article of long side face is provided with the first PCB, described the
The first LED light is uniformly arranged along the thermally conductive length direction on one PCB, in each first LED light and the first PCB
First printing power supply line connects, long along described thermally conductive article on the setting of thermally conductive article of chamfer the 2nd PCB, the 2nd PCB
Degree direction is uniformly arranged the second LED light, and each second LED light is connect with the second printing power supply line on the 2nd PCB.
9. display device according to claim 8, which is characterized in that the angle of corner cut is between 20-70 degree.
10. a kind of control method of the described in any item display devices of claim 1-9, which comprises the following steps:
Obtain brightness value current in environment；
Judge whether the brightness value is less than light filling threshold value, if so, according to the corresponding relationship of brightness value and light filling brightness,
The first light source is adjusted to corresponding light filling brightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112989.XA CN109147562B (en) | 2018-09-25 | 2018-09-25 | Display device and control method thereof |
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|---|---|---|---|
| CN201811112989.XA CN109147562B (en) | 2018-09-25 | 2018-09-25 | Display device and control method thereof |
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| CN109147562B CN109147562B (en) | 2021-12-03 |
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| CN109147562B (en) | 2021-12-03 |
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