CN205427398U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN205427398U CN205427398U CN201620229192.8U CN201620229192U CN205427398U CN 205427398 U CN205427398 U CN 205427398U CN 201620229192 U CN201620229192 U CN 201620229192U CN 205427398 U CN205427398 U CN 205427398U
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 5
- 239000010408 film Substances 0.000 claims description 4
- 210000001525 retina Anatomy 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 5
- 208000014674 injury Diseases 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000000695 crystalline len Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model discloses a backlight module and display device to make display device possess the eyeshield function, reduce the injury of screen to people's eye. Backlight unit includes the LED banks, the LED banks includes FPC and sets up in FPC on just the first circuit and the second circuit that can be switched on by the switching, wherein: first circuit includes a plurality of LED that have the blue light chip, the second circuit includes a plurality of the 2nd LED that have the ruddiness chip. This backlight unit is applied to display device, and display device can possess two kinds of display mode, normal display mode and eyeshield display mode promptly, and the operatable display device of user switches between two kinds of display mode. Read the file for a long time when needs, when perhaps the user is children, can launch eyeshield display mode, provide in a poor light by the 2nd LED to avoid the blue light to jet into the retina, play the effect of protection eyes.
Description
Technical field
The utility model relates to Display Technique field, particularly relates to a kind of backlight module and display device.
Background technology
In panel display apparatus, Thin Film Transistor-LCD (ThinFilmTransistorLiquidCrystalDisplay, it is called for short TFT-LCD) there is the features such as volume is little, low in energy consumption, manufacturing cost is relatively low and radiationless, occupy leading position in current flat panel display market.
As light source, the light permeate crystal panel that backlight module sends injects human eye to the commonly used LED of backlight module (light-emittingdiode, light emitting diode are called for short LED) of liquid crystal indicator.At present, the LED in backlight module is usually white light LEDs, and its blue light utilizing blue chip to send excites yellow fluorescence bisque thus produces white light.
Prior art has a drawback in that, blue light is bigger to the injury of human eye, and especially wavelength is bigger to the injury of human eye between 420～455nm interval high energy shortwave blue lights, and its crystalline lens that can penetrate human eye goes directly foveal region of retina.Can feel that eyes dryness and discomfort of the eye takes, the most for this reason, time serious when long-time use mobile phone, it is also possible to cause cataract the most blind.
Utility model content
The purpose of the utility model embodiment is to provide a kind of backlight module and display device, so that display device possesses eye-protecting function, reduces the screen injury to human eye.
The utility model embodiment provides a kind of backlight module, including LED group, described LED group includes FPC (FlexiblePrintedCircuitboard, FPC) and it is arranged on FPC and can be switched the first circuit and the second circuit of conducting, wherein: described first circuit includes multiple LED with blue chip；Described second circuit includes multiple 2nd LED with red light chips.
The backlight module of the utility model embodiment is applied to display device, and display device can possess two kinds of display patterns, i.e. normal displaying mode and eyeshield display pattern, and the operable display device of user switches between two kinds of display patterns.When the long-time reading file of needs, or when user is children, eyeshield display pattern can be enabled, the 2nd LED provide backlight, thus avoid blue light to inject retina, play the effect of protection eyes.
Preferably, a plurality of LED and the plurality of 2nd LED interval are arranged.So, the brightness homogeneity of backlight module is preferable, it is provided that the more uniform backlight of ratio, so that display device possesses preferably display effect.
It is also preferred that the left a described LED also includes that yellow fluorescence bisque, described 2nd LED also include green glow chip.
The blue light that the blue chip of the oneth LED sends excites yellow fluorescence bisque to produce white light, and light efficiency is higher, can be that display device provides highlighted backlight, so that display quality is preferable when normal displaying mode.The green glow that the ruddiness that the red light chips of the 2nd LED sends sends with green glow chip mixes the white light that generation is partially warm, although light efficiency is more lower slightly than a LED, but can also meet the brightness demand needed for eyeshield display pattern.
The utility model embodiment additionally provides a kind of display device, including liquid crystal panel and the backlight module as described in aforementioned arbitrary technical scheme that is positioned at liquid crystal panel dorsal part.This display device possesses two kinds of display patterns, i.e. normal displaying mode and eyeshield display pattern, and the operable display device of user switches between two kinds of display patterns.When the long-time reading file of needs, or when user is children, eyeshield display pattern can be enabled, thus avoid blue light to inject retina, play the effect of protection eyes.
Preferably, described display device also includes being arranged on the driving chip outside viewing area and pressure detecting module, wherein: described pressure detecting module includes the first electrode, is positioned at the layer of pressure sensitive on front side of the first electrode, and is positioned at the second electrode on front side of layer of pressure sensitive；Described driving chip is connected with pressure detecting module, for when receiving the pressure trigger signal of pressure detecting module, switches described first circuit and the on off operating mode of second circuit.
When pressure detecting module pressurized, layer of pressure sensitive pressurized produces polarization charge, and the potential difference between the first electrode and the second electrode changes, thus produces pressure trigger signal.Driving chip, when receiving pressure trigger signal, switches the on off operating mode of the first circuit and second circuit, so that display device once switches between normal displaying mode and eyeshield display pattern.Additionally, pressure detecting module is arranged on outside the viewing area of display device, do not interfere with the screen accounting of display device, so that display device has preferably display effect.
Concrete, described first circuit is provided with the first film transistor, described second circuit is provided with the second thin film transistor (TFT), and described driving chip, for when receiving the pressure trigger signal of pressure detecting module, switches described the first film transistor and the on off state of the second thin film transistor (TFT).
It is also preferred that the left described display device includes touch control display apparatus.
Concrete, described touch control display apparatus includes the touch-screen being positioned on front side of liquid crystal panel, and described pressure detecting module is outside the viewing area of the array base palte of described liquid crystal panel and between described touch-screen.Pressure detecting module is arranged on this position, will not take the area of display screen, and be easy to circuit trace, so that display device has preferably quality.
Accompanying drawing explanation
Fig. 1 is the utility model one embodiment backlight module schematic top plan view；
Fig. 2 is the utility model one embodiment display device schematic top plan view；
Fig. 3 is the utility model one embodiment display device schematic cross-section；
Fig. 4 is the circuit control principle schematic diagram of display device.
Reference:
10-LED lamp group；11-FPC；12-the first circuit；13-second circuit；121-the oneth LED；
131-the 2nd LED；100-backlight module；200-liquid crystal panel；210-array base palte；
220-color membrane substrates；300-touch-screen；40-pressure detecting module；41-the first electrode；
42-layer of pressure sensitive；43-the second electrode；50-driving chip；122-the oneth TFT；132-the 2nd TFT；
500-viewing area.
Detailed description of the invention
For reducing the display screen injury to human eye, the utility model embodiment provides a kind of backlight module and display device.For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples the utility model is described in further detail.
As shown in Figure 1, the backlight module 100 that the utility model one embodiment provides, including LED group 10, LED group 10 includes FPC11 and is arranged on FPC11 and can be switched the first circuit 12 and the second circuit 13 of conducting, wherein: the first circuit 12 includes multiple LED121 with blue chip；Second circuit 13 includes multiple 2nd LED131 with red light chips.
For skilled person will appreciate that, backlight module 100, in addition to LED group 10, the most also includes the parts such as backboard, reflector plate, light guide plate, blooming piece and glue frame, and these parts are illustrated in embodiment accompanying drawing.In backlight module, the position that specifically arranges of LED group does not limits, for example, it is possible to be positioned at the side end face of light guide plate, it is also possible to be positioned at the bottom of light guide plate.
In the utility model embodiment, the first circuit 12 and second circuit 13 switched conductive refer to: operationally, if the first circuit 12 turns on, then second circuit 13 disconnects backlight module；After switching one action state, second circuit 13 turns on, and the first circuit 12 disconnects；Again after switch operating state, the first circuit 12 turns on, and second circuit 13 disconnects, by that analogy.
The backlight module 100 of the utility model embodiment is applied to display device, display device can possess two kinds of display patterns, i.e. normal displaying mode and eyeshield display pattern, when display device is in normal displaying mode, oneth LED121 work of backlight module 100, when display device is in eyeshield display pattern, the 2nd LED131 work of backlight module 100.The operable display device of user switches between two kinds of display patterns.When the long-time reading file of needs, or when user is children, eyeshield display pattern can be enabled, the 2nd LED131 provide backlight, thus avoid blue light to inject retina, play the effect of protection eyes.
Preferably, multiple LED121 and multiple 2nd LED131 interval are arranged.So, the brightness homogeneity of backlight module 100 is preferable, it is provided that the more uniform backlight of ratio, so that display device possesses preferably display effect.Additionally, this set-up mode also will not increase the size of FPC11, do not interfere with the overall structure size of backlight module 100 and display device.
In preferred embodiment of the present utility model, a LED121 also includes yellow fluorescence bisque, and the 2nd LED131 also includes green glow chip.The blue light that the blue chip of the oneth LED121 sends excites yellow fluorescence bisque to produce white light, and light efficiency is higher, can be that display device provides highlighted backlight, so that display quality is preferable when normal displaying mode.The green glow that the ruddiness that the red light chips of the 2nd LED131 sends sends with green glow chip mixes the white light producing Huang partially, although light efficiency is more lower slightly than a LED, but can also meet the brightness demand needed for eyeshield display pattern.
As shown in Figures 2 and 3, the utility model embodiment additionally provides a kind of display device, including liquid crystal panel 200 and be positioned at liquid crystal panel 200 dorsal part such as the backlight module 100 of aforementioned arbitrary technical scheme.This display device possesses two kinds of display patterns, i.e. normal displaying mode and eyeshield display pattern, and the operable display device of user switches between two kinds of display patterns.When the long-time reading file of needs, or when user is children, eyeshield display pattern can be enabled, thus avoid blue light to inject retina, play the effect of protection eyes.
The particular type of above-mentioned display device does not limits, and can be touch control display apparatus, such as mobile phone, panel computer etc., it is also possible to for conventional display device, such as liquid crystal display, LCD TV etc..
In Fig. 1, the switched conductive of the first circuit 12 and second circuit 13 can be realized by software design patterns, it is also possible to is realized by hardware, and such as button or following pressure detecting module by being arranged at display device realize.
As shown in Figures 2 and 3, in this embodiment, display device also includes being arranged on the driving chip 50 outside viewing area 500 and pressure detecting module 40, wherein: pressure detecting module 40 includes the first electrode 41, is positioned at the layer of pressure sensitive 42 on front side of the first electrode 41, and is positioned at the second electrode 43 on front side of layer of pressure sensitive 42；Driving chip 50 is connected with pressure detecting module 40, for when receiving the pressure trigger signal of pressure detecting module 40, switches the first circuit 12 shown in Fig. 1 and the on off operating mode of second circuit 13.
When pressure detecting module 40 pressurized, layer of pressure sensitive 42 pressurized produces polarization charge, and the potential difference between the first electrode 41 and the second electrode 43 changes, thus produces pressure trigger signal.Driving chip 50, when receiving pressure trigger signal, switches the first circuit 12 and the on off operating mode of second circuit 13, so that display device once switches between normal displaying mode and eyeshield display pattern.Additionally, pressure detecting module 40 is arranged on outside the viewing area 500 of display device, do not interfere with the screen accounting of display device, so that display device has preferably display effect.
Concrete, as it is shown in figure 1, the first circuit 12 is provided with a TFT122, second circuit 13 is provided with the 2nd TFT132, driving chip 50, for when receiving the pressure trigger signal of pressure detecting module 40, switches a TFT122 and the on off state of the 2nd TFT132.Such as, as shown in Figure 4, driving chip 50 makes the first circuit 12 turn on as forward direction the oneth TFT122 output high level signal VGH, makes second circuit 13 disconnect to the 2nd TFT132 output low level signal VGL, and display device works in normal displaying mode；When driving chip 50 receives once from the pressure trigger signal of pressure detecting module 40, then a TFT122 and the 2nd TFT132 is carried out primary voltage change, i.e. the first circuit 12 is made to disconnect to a TFT122 output low level signal VGL, second circuit 13 is made to turn on to the 2nd TFT132 output high level signal VGH, so that display device realizes a pattern switching, work in eyeshield display pattern.Controlling being turned on or off of the first circuit 12 and second circuit 13 by controlling the on off state of TFT, circuit structure is simple, be easily achieved.
In preferred embodiment of the present utility model, display device is specially touch control display apparatus, such as, and mobile phone or panel computer etc..Touch control display apparatus includes the touch-screen being positioned on front side of liquid crystal panel, and pressure detecting module is outside the viewing area of the array base palte of liquid crystal panel and between touch-screen.
As shown in Figures 2 and 3, general, the size of the array base palte 210 of liquid crystal panel 200 is more than color membrane substrates 220, and the size of touch-screen 300 is also greater than color membrane substrates 220, array base palte 210 can be used for installing display chip 50 beyond the region of color membrane substrates 220, is also disposed at pressure detecting module 40 this region, so to take the area of viewing area 500, and be easy to circuit trace, so that display device has preferably quality.When with the induction region at finger light pressure pressure detection module 40 place, display device once can switch between normal displaying mode and eyeshield display pattern, and it is the most convenient to operate.
It is worth mentioning that, touch control display apparatus is in addition to can using above-mentioned touch-screen external hanging type structure, the version that touch-screen is embedded in liquid crystal panel can also be used, pressure detecting module only need to be arranged on the outside of viewing area, be not take up display screen area.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to the utility model.So, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. a backlight module, it is characterized in that, including LED light lamp group, described LED light lamp group includes FPC and is arranged on FPC and can be switched the first circuit and the second circuit of conducting, wherein: described first circuit includes multiple first light emitting diode with blue chip；Described second circuit includes multiple second light emitting diode with red light chips.
2. backlight module as claimed in claim 1, it is characterised in that the plurality of first light emitting diode and the plurality of second light emitting diode interval are arranged.
3. backlight module as claimed in claim 1 or 2, it is characterised in that described first light emitting diode also includes that yellow fluorescence bisque, described second light emitting diode also include green glow chip.
4. a display device, it is characterised in that include liquid crystal panel and be positioned at the backlight module as described in any one of claims 1 to 3 of liquid crystal panel dorsal part.
5. display device as claimed in claim 4, it is characterised in that described display device also includes being arranged on the driving chip outside viewing area and pressure detecting module, wherein:
Described pressure detecting module includes the first electrode, is positioned at the layer of pressure sensitive on front side of the first electrode, and is positioned at the second electrode on front side of layer of pressure sensitive；
Described driving chip is connected with pressure detecting module, for when receiving the pressure trigger signal of pressure detecting module, switches described first circuit and the on off operating mode of second circuit.
6. display device as claimed in claim 5, it is characterized in that, described first circuit is provided with the first film transistor, described second circuit is provided with the second thin film transistor (TFT), described driving chip, for when receiving the pressure trigger signal of pressure detecting module, switches described the first film transistor and the on off state of the second thin film transistor (TFT).
7. the display device as described in claim 5 or 6, it is characterised in that described display device includes touch control display apparatus.
8. display device as claimed in claim 7, it is characterised in that described touch control display apparatus includes the touch-screen being positioned on front side of liquid crystal panel, and described pressure detecting module is outside the viewing area of the array base palte of described liquid crystal panel and between described touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229192.8U CN205427398U (en) | 2016-03-23 | 2016-03-23 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229192.8U CN205427398U (en) | 2016-03-23 | 2016-03-23 | Backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN205427398U true CN205427398U (en) | 2016-08-03 |
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| CN201620229192.8U Active CN205427398U (en) | 2016-03-23 | 2016-03-23 | Backlight module and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596954A (en) * | 2019-09-25 | 2019-12-20 | 京东方科技集团股份有限公司 | Backlight module, display panel and display device |
| CN111383606A (en) * | 2018-12-29 | 2020-07-07 | Tcl新技术（惠州）有限公司 | Display method of liquid crystal display, liquid crystal display and readable medium |
| CN115561929A (en) * | 2021-06-30 | 2023-01-03 | 广东艾檬电子科技有限公司 | Display screen, display device and light-emitting control method of display screen |
-
2016
- 2016-03-23 CN CN201620229192.8U patent/CN205427398U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111383606A (en) * | 2018-12-29 | 2020-07-07 | Tcl新技术（惠州）有限公司 | Display method of liquid crystal display, liquid crystal display and readable medium |
| CN110596954A (en) * | 2019-09-25 | 2019-12-20 | 京东方科技集团股份有限公司 | Backlight module, display panel and display device |
| CN115561929A (en) * | 2021-06-30 | 2023-01-03 | 广东艾檬电子科技有限公司 | Display screen, display device and light-emitting control method of display screen |
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