CN104216169B - Display device - Google Patents
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- CN104216169B CN104216169B CN201310210603.XA CN201310210603A CN104216169B CN 104216169 B CN104216169 B CN 104216169B CN 201310210603 A CN201310210603 A CN 201310210603A CN 104216169 B CN104216169 B CN 104216169B
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- light source
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Abstract
The present invention discloses a kind of display device, it includes a panel module and a light source module, said panel module has a display surface, said light source module is arranged at the side of panel module, and including a main light source and a secondary light source, wherein foregoing main light source projects one first light to foregoing display surface to produce an image, and foregoing secondary light source projects one second light to foregoing display surface, to improve the brightness of at least first area in the image.
Description
Technical field
The present invention relates to a kind of display device；More particularly to a kind of liquid crystal display device with secondary light source.
Background technology
Liquid crystal display device turns into a kind of display device common in life, wherein in the market of display device for vehicle
On, it would be preferable to support the Mobyneb console of the function such as DTV or GPS navigation turns into current main flow, therefore newest pushes away
The car money gone out, replaces traditional mechanical driving instrument board using liquid crystal display device mostly.
However, current liquid crystal display device for vehicle is easily influenceed by sunburst outside car, cause its picture color
It is partially light, color saturation decline, and then be likely to result in tool warning or driving miscellaneous function pattern or picture neglected by driver
Slightly, the security of driving is jeopardized.
The content of the invention
In view of foregoing existing issue point, one embodiment of the invention provides a kind of display device, including a panel module
And a light source module, said panel module has a display surface, and said light source module is arranged at the side of panel module, and
Including a main light source and a secondary light source, wherein foregoing main light source projects one first light to foregoing display surface to produce a shadow
Picture, and foregoing secondary light source projects one second light to foregoing display surface, to improve at least first area in foregoing image
Brightness.
In one embodiment, foregoing main light source includes the set of a white light-emitting diode or a color light-emitting diode.
In one embodiment, foregoing secondary light source includes a white light-emitting diode, red light emitting diodes, blue-light-emitting
The one of which of the set of above-mentioned light source such as diode, green LED or other color LEDs.
In one embodiment, said light source module is a directly-down light source module, and is oppositely arranged with said panel module,
And the light source module also includes a substrate, foregoing secondary light source is arranged on substrate and corresponding to foregoing first area.
In one embodiment, said light source module is a lateral light source module, and the light source module also includes a leaded light
Plate, foregoing main light source and secondary light source are arranged at the week side of boss of light guide plate.
In one embodiment, foregoing light guide plate includes a light guide structure, corresponding to the position of foregoing secondary light source, to guide
Foregoing second light is projected to foregoing first area.
In one embodiment, foregoing light guide structure has a V-shape or semi-circular cross-section.
In one embodiment, foregoing secondary light source projects foregoing second light to foregoing first area in a flashing manner.
In one embodiment, when foregoing secondary light source projects foregoing second light to foregoing first area, corresponding to the
The brightness in one region is higher than other regions of foregoing image.
In one embodiment, when foregoing secondary light source projects foregoing second light to foregoing first area, firstth area
The brightness in domain is higher than the mean flow rate at least 50 to 500nits of foregoing image.
In one embodiment, said light source module also includes a control unit, and the control unit drives foregoing secondary light source.
In one embodiment, said light source module includes an Organic Light Emitting Diode.
In one embodiment, the area of foregoing first area is less than the area of foregoing image.
Brief description of the drawings
Fig. 1 is the display device schematic diagram of one embodiment of the invention；
Fig. 2 is the display device schematic diagram of another embodiment of the present invention；
Fig. 3 is the display device schematic diagram of further embodiment of this invention.
Symbol description
10~display device；
100~panel module；
100a~first area；
200~light source module；
202~main light source；
204~secondary light source；
206~control unit；
B~substrate；
D~travel distance；
G~light guide plate；
S~display surface；
θ~light extraction distribution angle.
Embodiment
Please referring initially to shown in Fig. 1, the display device 10 of one embodiment of the invention can be as a display device for vehicle (for example
One instrument board), mainly include a panel module 100 and a light source module 200.
Enter light as shown in figure 1, the light source module 200 of the present embodiment is straight-down negative and be arranged at the bottom of panel module 100
Side, in other words, panel module 100 is between observer and light source module 200.Light source module 200 mainly includes a substrate
B, multiple main light sources 202 and multiple secondary light sources 204, foregoing main light source 202 are white light-emitting diode (LED), white the moon
Extreme ray pipe or other white light sources, are arranged on substrate B in the form of an array, and control to project the first light by driver element
Line (white light) produces an image to a display surface S of panel module 100.
The classification of white, red, green, blueness or other color representations herein in Munsell color system, its
Middle white can refer in CIE1931XYZ chromaticity coordinates systems x between 0.31 to 0.35, y between 0.31 to 0.36 chromatic value
Light, it can be bordering on standard illuminants C, D50, D55, D65, D75 or B chromatic value.Red main wavelength then between
550nm to (include cone absorb red peak wavelength 564nm) between 700nm, green main wavelength between 500nm extremely
Between 600nm (include cone absorb red peak wavelength 534nm), and blueness main wavelength between 380nm to 500nm
Between (include cone absorb red peak wavelength 400nm), below the color beyond white be all referred to as colour.Foregoing key light
First light in source 202, according to its application or colour, is produced using the set of white light source or color light source.
It is to be understood that said panel module 100 is a liquid crystal panel module, by a thin film transistor base plate, a colour
Filter sheet base plate, liquid crystal layer, associated driver circuitry and relevant optical constitute (not shown), and can be adjusted by driving liquid crystal
Darkening throughput, adds colored filter with so that display surface S shows the picture of colour.The display of said panel module 100
In the image that face S is presented, the first area 100a (warning region) with an at least fixed position, to be used as fixed sign
Warning image is used, such as three warning pictures in the display surface S upper right corner, the both direction lamp pattern close to centre in Fig. 1
And a fuel tank warning picture in the lower left corner, the wherein grade position is fixed and the color having different from other positions image more
To strengthen alarm function.Foregoing first area 100a area is less than display surface S and the above-mentioned shadow being presented on display surface S
The area of picture.
In addition, being provided with a control unit 206 and foregoing secondary light source 204, wherein control unit on aforesaid base plate B
206 can electrically connect those secondary light sources 204, and control unit 206 can independently drive indivedual secondary light sources 204 to project the second light
To display surface S first area 100a, and its brightness is set to improve or change its colourity.In other embodiments, foregoing fill-in light
The control unit 206 in source 204 can merge with the driver element of main light source 202, and can independently or synchronously drive.In the present embodiment
Secondary light source 204 can for red-light source (LED or CCFL), blue light source (LED or CCFL), green-light source (LED or CCFL) or
The one of which of the set of the above-mentioned light source such as other colored light sources, also or can be white light source (LED or CCFL) or its with having
The mixing of color light source, it corresponds to 100a default colors in those first areas in display surface S (can be white or colored), depending on
Change the brightness and colourity design of secondary light source 204 the need for reinforcing warning image.Foregoing first light is on display surface S
Projected area is more than the second light in the projected area on display surface S.
Specifically, those first areas that the position of foregoing secondary light source 204 is corresponded respectively in display surface S
100a sets (as shown in Figure 1), therefore when control unit 206 drives specific secondary light source 204 to light, may be such that its correspondence
First area 100a mean flow rate (at least 50 to 500nits) of the picture brightness higher than image on display surface S, and can carry
Height those first areas 100a color saturation, to lower the influence of sunlight outside car, and then causes driver to be easily noted that
Those warning image information.
In addition, noticing foregoing first area 100a image information to be easier driver, control unit 206 also may be used
Secondary light source 204 is activated in the way of flashing driving, or the second light is projected to those first areas in secondary light source 204
During 100a, it may be such that the brightness (penetrance) for corresponding to those first areas 100a in panel module 100 is improved or can reduced
The brightness of other images on first area 100a peripheries, more to strengthen those first areas 100a brightness and color saturation,
And contrast effect can be produced with other regions in display surface S.
In other embodiments of the invention, foregoing main light source 202 or R/G/B LED set, it passes through three primary colors
The form of mixed light is to provide white light or colourama；Or, foregoing secondary light source 204 or R/G/B LED set, it passes through choosing
Selecting property drives single chip to produce the colouramas such as feux rouges or green glow.It is to be understood that not limiting fill-in light in the present invention
The glow color in source 204, only only needs to coordinate foregoing first area 100a pre-set color.Foregoing main light source 202 or auxiliary
The quantity and pattern (can for example use bulb or fluorescent tube instead) of light source 204 shown in Fig. 1 also not to be limited.
Then, refer to Fig. 2, it represents the display device schematic diagram of another embodiment of the present invention.In the present embodiment
Display device 10 is that light source module 200 is changed to side type and enters light, in other words, light source compared to the difference of embodiment illustrated in fig. 1
Module 200 to enter normal direction of the light direction substantially with panel module 100 orthogonal, and main light source 202 and fill-in light
Source 204 is respectively arranged at the opposite side of a light guide plate G.
Specifically, due to light that the light source module 200 in the present embodiment, its secondary light source 204 are sent
It need to be guided by light guide plate G and be projected to the display surface S of panel module 100, to be presented in the in display surface S image
One region 100a brightness is improved, therefore a preferably configuration mode is neighbouring by those secondary light sources 204 and first area 100a
In light guide plate G side (as shown in Figure 2), to avoid the light that secondary light source 204 is sent from interfering with the image on display surface S
In other regions.
Foregoing main light source 202 may also set up the phase homonymy in light guide plate G with secondary light source 204, or foregoing light guide plate G
The left and right sides can also set up main light source 202 or secondary light source 204, and (now, foregoing first area 100a can correspond to secondary light source 204
Position be arranged on the display surface S left and right sides), the light that only those secondary light sources 204 are sent can be projected to aobvious respectively
Show face S those first areas 100a.
In another embodiment of the invention, multiple light guide structures be may also include on the downside of foregoing light guide plate G, for example with
The lens type groove in V-shape section or the optical texture with semi-circular cross-section, it corresponds respectively to foregoing secondary light source 204
Position, the second light that secondary light source 204 sent thus can be guided exactly and reaches display surface S, to improve display surface S's
Corresponding first area 100a brightness in image.Wherein, the second light that foregoing secondary light source 204 is sent is in light guide plate G
In travel distance D (referring to shown in Fig. 2), be end see those light guide structures and those first areas 100a position configuration and
It is fixed, and the light extraction distribution angle θ (as shown in Figure 2) of those secondary light sources 204 can be between 1 degree between 180 degree.
Referring again to shown in Fig. 3, said light source module 200 is alternatively an active organic light-emitting diode (OLED) array
Panel, it includes substrate, driving element, cabling, organic LED array (white, red, green, blueness or its allochromatic colour
It is color) and encapsulating structure etc., foregoing organic LED array has main light source 202 and secondary light source 204, can be with compartmentalization
Light with throw light to the display surface S of display panel 100 so that the image with first area 100a is presented, now display panel
100 can be the liquid crystal display panel that need to be driven, or be not required to the transparency carrier (table cover glass) of driving, with colored filter
Transparency carrier (table cover glass).Its design refers to previous embodiment.Secondary light source 204 may be such that specific first area 100a
Luminance raising or colourity change.
It is to be understood that aforementioned display 10 also can be specific in its image to meet as an industrial display device
The information such as warning or operational illustration yet needs especially eye-catching demand.
In summary, the present invention provides a kind of display device, can mainly include as an automobile-used or industrial display device
One panel module and a light source module, the wherein main light source of light source module can produce shadow on the display surface of said panel module
Picture, and an at least secondary light source for the light source module then can be when a control unit drives so that at least one in foregoing image
The brightness of first area is improved.By foregoing invention feature, in the display surface that may be such that foregoing automobile-used or industrial display device
The brightness of specific first area (for example driving a vehicle or operate warning symbol) is improved with color saturation, and then can play its police
The effect shown and reminded.
Although disclosing the present invention with foregoing embodiment, but it is not limited to the present invention.Skill belonging to of the invention
Skilled person in art field, without departing from the spirit and scope of the present invention, can do a little change and retouching.Therefore originally
The protection domain of invention should be by being defined that the claim enclosed is defined.
Claims (11)
1. a kind of display device, including：
Panel module, with a display surface；And
Light source module, is arranged at the side of the panel module, and including a main light source, a secondary light source and a light guide plate, the master
The light of light source projects one first is to the display surface to produce an image, and the secondary light source projects one second light to the display
Face, to improve the brightness of at least first area in the image, the wherein light source module is a lateral light source module, the master
Light source and the secondary light source are arranged at the week side of boss of the light guide plate.
2. display device as claimed in claim 1, the wherein main light source include a white light-emitting diode or a colorful light-emitting
The set of diode.
3. display device as claimed in claim 1, the wherein secondary light source include white light-emitting diode, the pole of emitting red light two
Wherein the one of the set of above-mentioned light source such as pipe, blue LED, green LED or other color LEDs
Person.
4. display device as claimed in claim 1, the wherein light guide plate include a light guide structure, corresponding to the secondary light source
Position, the first area is projected to guide second light.
5. display device as claimed in claim 4, the wherein light guide structure have a V-shape or semi-circular cross-section.
6. display device as claimed in claim 1, the wherein secondary light source project second light and extremely should in a flashing manner
First area.
7. display device as claimed in claim 1, wherein when the secondary light source projects second light to the first area,
Brightness corresponding to the first area is higher than other regions of the image.
8. display device as claimed in claim 7, wherein when the secondary light source projects second light to the first area,
The brightness of the first area is higher than the mean flow rate at least 50 to 500nits of the image.
9. display device as claimed in claim 1, the wherein light source module also include a control unit, control unit driving
The secondary light source.
10. display device as claimed in claim 1, the wherein light source module include an Organic Light Emitting Diode.
11. the area of display device as claimed in claim 1, the wherein first area is less than the area of the image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310210603.XA CN104216169B (en) | 2013-05-30 | 2013-05-30 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310210603.XA CN104216169B (en) | 2013-05-30 | 2013-05-30 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104216169A CN104216169A (en) | 2014-12-17 |
| CN104216169B true CN104216169B (en) | 2017-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310210603.XA Active CN104216169B (en) | 2013-05-30 | 2013-05-30 | Display device |
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| Country | Link |
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| CN (1) | CN104216169B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609390B (en) * | 2019-10-18 | 2022-08-26 | 大陆汽车车身电子系统（芜湖）有限公司 | Backlight brightness adjusting method for head-up display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3244710A1 (en) * | 1982-12-03 | 1984-06-07 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Multiple indicator light |
| US6294990B1 (en) * | 1995-12-19 | 2001-09-25 | Robert Bosch Gmbh | Display device |
| CN101660690A (en) * | 2008-08-27 | 2010-03-03 | 乐金显示有限公司 | Back light unit and liquid crystal display device therewith |
| CN102422189A (en) * | 2009-03-10 | 2012-04-18 | 通用汽车环球科技运作有限责任公司 | Display device for a vehicle and method for producing the display device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2820235B1 (en) * | 2001-01-26 | 2003-06-13 | Thomson Csf | BACKLIGHT DEVICE FOR VIEWING SCREEN BY TRANSMISSION COMPATIBLE WITH NIGHT VISION |
| US20070030413A1 (en) * | 2005-08-03 | 2007-02-08 | Raymond Lippmann | Liquid crystal display with differently-colored localized display areas |
| CN103057466A (en) * | 2011-10-18 | 2013-04-24 | 上海江森自控汽车电子有限公司 | Novel dial plate lighting and indicating device of motormeter |
-
2013
- 2013-05-30 CN CN201310210603.XA patent/CN104216169B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3244710A1 (en) * | 1982-12-03 | 1984-06-07 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Multiple indicator light |
| US6294990B1 (en) * | 1995-12-19 | 2001-09-25 | Robert Bosch Gmbh | Display device |
| CN101660690A (en) * | 2008-08-27 | 2010-03-03 | 乐金显示有限公司 | Back light unit and liquid crystal display device therewith |
| CN102422189A (en) * | 2009-03-10 | 2012-04-18 | 通用汽车环球科技运作有限责任公司 | Display device for a vehicle and method for producing the display device |
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| Publication number | Publication date |
|---|---|
| CN104216169A (en) | 2014-12-17 |
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