CN101778516A - Display device and light control method thereof - Google Patents
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- CN101778516A CN101778516A CN 201010138639 CN201010138639A CN101778516A CN 101778516 A CN101778516 A CN 101778516A CN 201010138639 CN201010138639 CN 201010138639 CN 201010138639 A CN201010138639 A CN 201010138639A CN 101778516 A CN101778516 A CN 101778516A
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Abstract
The invention discloses a display device and a light control method. The method comprises the following steps: receiving control signals when the display device is in operation; controlling a light source arranged at a rear housing of the display device to give out light based on control signals. With the device and the method of the invention, screen brightness and darkness contrast can be reduced and eyesight of the users of the display device can be protected.
Description
Technical field
The present invention relates to a kind of display unit and lamp light control method thereof.
Background technology
TV is watched by family, especially hot film time custom dims indoor light, or directly close indoor light, the dark surrounds viewing effect of analog electrical movie theatre, but because television image brightness is too strong with dark surrounds contrast on every side, cause eye fatigue when the user watches easily, damage user's eyesight in the course of time.
The user is when display unit such as use computer, externally under the more weak situation of light, also tend to because the picture brightness of display unit is too strong with dark surrounds contrast on every side, the user causes eye fatigue easily when using display unit, for a long time and then may damage user's eyesight.
Problem at often cause eyes of user fatigue in the correlation technique too strongly and easily because of the picture brightness of display unit and dark surrounds contrast on every side when using display unit does not propose effective solution at present as yet.
Summary of the invention
At when using display unit, often causing the problem of eyes of user fatigue too strongly and easily and propose the present invention in the correlation technique because of the picture brightness of display unit and dark surrounds contrast on every side, for this reason, main purpose of the present invention is to provide a kind of display unit and lamp light control method thereof, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of lamp light control method of display unit.
Lamp light control method according to display unit of the present invention comprises: under the situation of opening display unit, receive control signal, and based on this control signal, control setting is carried out in the light source of display unit back cover luminous.
Further, control setting is carried out luminous comprising in the light source of display unit back cover: display unit detects the luminous intensity of surrounding environment; And display unit is regulated the luminous intensity of light source according to luminous intensity.
Further, the luminous intensity that display unit is regulated light source according to luminous intensity comprises: be lower than in luminous intensity under the situation of first threshold, the control light source is opened; Be higher than in luminous intensity under the situation of second threshold value, the control light source is closed.
Further, control setting is carried out luminous comprising in the light source of display unit back cover: display unit receives the remote signal from remote controller, and wherein, remote signal is used to indicate the brightness to background light to regulate, and perhaps closes or open light source; Display unit is opened according to remote signal or is closed light source, perhaps the luminous intensity of light source is regulated.
To achieve these goals, according to a further aspect in the invention, provide a kind of display unit.
In display unit according to the present invention, be provided with light source at back cover, this display unit also comprises: receiving element receives control signal under the situation of opening display unit; Control chip is connected with receiving element with light source, and based on control signal, the control light source carries out luminous.
Further, above-mentioned display unit also comprises: light sensitive component, the luminous intensity of detection surrounding environment; Control chip is connected with light sensitive component with light source, regulates the luminous intensity of light source according to luminous intensity.
Further, control chip is lower than in luminous intensity under the situation of first threshold, opens light source, is higher than in luminous intensity under the situation of second threshold value, closes light source.
Further, above-mentioned display unit also comprises: the remote control dash receiver, be connected with control chip, and receive remote signal from remote controller, wherein, remote signal is used to indicate the brightness to light source to regulate, and perhaps closes or open light source; Wherein, control chip is controlled light source based on remote signal.
Further, above-mentioned light source is the LED lamp, and light source comprises one of following or a plurality of combination arbitrarily: strip source, two point form light source and single-point type light source.
Further, be under the situation of strip source at light source, strip source is arranged at the back cover middle and upper part of display unit, luminous point run through display unit about and luminous point towards the back upper place of display unit; At light source is under the situation of two point form light source, and two luminous points of two point form light source are arranged at the left and right sides of display unit back cover respectively; At light source is under the situation of single-point type light source, and the luminous point of single-point type light source is arranged on the axis of above-below direction of display unit back cover.
By the present invention; employing is under the situation of opening display unit; undertaken luminous by the light source that is arranged at the display unit back cover; solved the problem that when using display unit, often causes eyes of user fatigue in the correlation technique too strongly and easily because of the picture brightness of display unit and dark surrounds contrast on every side; and then reached the picture brightness and dark surrounds contrast on every side that reduces display unit, and then the effect of protection user eyesight.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the lamp light control method of the display unit of the embodiment of the invention;
Fig. 2 is the flow chart according to first preferred embodiment of the lamp light control method of display unit of the present invention;
Fig. 3 is the flow chart according to second preferred embodiment of the lamp light control method of display unit of the present invention;
Fig. 4 is the schematic diagram that strip source is set on display unit according to the embodiment of the invention;
Fig. 5 is the schematic diagram that the two point form light source is set on display unit according to the embodiment of the invention;
Fig. 6 is the schematic diagram that the single-point type light source is set on display unit according to the embodiment of the invention;
Fig. 7 is the schematic diagram according to the preferred embodiment of display unit of the present invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
According to embodiments of the invention, provide a kind of lamp light control method of display unit.
Fig. 1 is the flow chart according to the lamp light control method of the display unit of the embodiment of the invention.
As shown in Figure 1, this method comprises that following step S102 is to step S104:
Step S102 under the situation of opening described display unit, receives control signal.Open display unit (for example television set etc.); Wherein, when display unit is opened, often have luminance difference between display picture and surrounding environment, especially the picture brightness of display unit is just more obvious with dark surrounds contrast on every side under the situation of dark.Wherein, described control signal can be the control signal of display unit self by producing after the background luminance around detecting, and also can be the control signal from the user that receives by input equipments such as remote control equipments.
Step S104, based on described control signal, control setting is carried out luminous in the light source of described display unit back cover.Undertaken luminous by the light source that is arranged at the display unit back cover.
In embodiments of the present invention; by under the situation of opening display unit; undertaken luminous by the light source that is arranged at the display unit back cover; even if under the situation of dark; also can reduce the picture brightness of display unit and dark surrounds contrast on every side effectively, and then reach the effect of protection user eyesight.
Fig. 2 is the flow chart according to first preferred embodiment of the lamp light control method of display unit of the present invention.
Wherein, carry out luminous can comprising by the light source that is arranged at the display unit back cover: display unit detects the luminous intensity of surrounding environment; And display unit is regulated the luminous intensity of light source according to luminous intensity.Under the situation that the light strength ratio of environment is lower, reduce the picture brightness of display unit and dark surrounds contrast on every side around by the luminous intensity that strengthens light source.
Carry out luminous can comprising by the light source that is arranged at the display unit back cover: display unit receives the remote signal from remote controller, and wherein, this remote signal is used to indicate the brightness to background light to regulate, and perhaps closes or open light source; Display unit is opened according to remote signal or is closed light source, perhaps the luminous intensity of light source is regulated.
Fig. 3 is the flow chart according to second preferred embodiment of the lamp light control method of display unit of the present invention.
As shown in Figure 3, in the lamp light control method according to the embodiment of the invention, the luminous intensity that display unit is regulated light source according to luminous intensity can may further comprise the steps:
Step S302, the luminous intensity of detection display unit surrounding environment.For example, can detect by photo-sensitive cell.
Whether step S304 judges detected luminous intensity greater than first threshold, and this threshold value can pre-set, and also can change by follow-up needs according to the user.
Step S306 is lower than in luminous intensity under the situation of first threshold, and the control light source is opened; Being lower than in luminous intensity under the situation of first threshold, illustrating that light from outside is lower, also is that the luminance difference of the picture brightness of display unit and surrounding environment is bigger, illustrates that needing to open light source this moment reduce luminance difference.
Whether step S308 judges light intensity greater than second threshold value, and this second threshold value can pre-set, and also can change by follow-up needs according to the user.
Step S310 is higher than in luminous intensity under the situation of second threshold value, and the control light source is closed.Externally luminous intensity is higher than under the situation of second threshold value, and the luminous intensity that external environment condition is described is than higher, also is that the luminance difference of the picture brightness of display unit and surrounding environment is smaller, is in energy-conservation consideration, illustrates and can close light source this moment.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Fig. 4 is the schematic diagram that strip source is set on display unit according to the embodiment of the invention.
As shown in Figure 4, display unit is provided with strip source 41.
This strip source 41 can be provided with a plurality of on back cover, for example, can each vertically be provided with one in both sides, and a strip source 41 also can be set on top, thereby can guarantee that enough light sources can strengthen the luminous intensity of background parts, reduce the luminance difference with display frame.
Preferably, be under the situation of strip source 41 at light source, strip source is arranged at the back cover middle and upper part of display unit, luminous point run through display unit about and luminous point towards the back upper place of display unit.
Alternatively, also can adjust the position of strip source 41, for example, can prolong longitudinally the axis and correspondingly adjust strip source up and down according to the size of display.
Wherein, strip source 41 can be arranged on the television rear shell middle and upper part, luminous point traverse television set about, and adopt to the luminous mode in back upper place.This mode can guarantee that the top of television set has uniformly the stronger background light in both sides relatively.Adopt above-mentioned setting, the cost of power supply and energy-conservation better can lessly as much as possible be set.
Fig. 5 is the schematic diagram that the two point form light source is set on display unit according to the embodiment of the invention.
As shown in Figure 5, display unit is provided with two point form light source 51.
Two luminous points of this two point form light source 51 can be arranged at the both sides of display unit, and can be provided with one or more.
Preferably, be under the situation of two point form light source 51 at light source, two luminous points of two point form light source are arranged at the left and right sides of display unit back cover respectively.Like this, can only need a two point form light source to get final product.Thereby can guarantee that enough light sources can strengthen the luminous intensity of background parts, reduce the luminance difference with display frame.
Alternatively, also can adjust the position of two point form light source, for example, can prolong longitudinally the axis and correspondingly adjust the two point form light source up and down according to the size of display.
Wherein, two point form light source 51 is provided with two luminous points respectively in the left and right sides of TV back cover, and light mainly concentrates on the screen left and right sides, utilizes crossing so that the background light of television set top to be provided of two light source light.This mode is suitable for the television set of reduced size, when screen size is big, if having only both sides luminous, causes the both sides background luminance middle relatively stronger easily.Because when normally watching, the main region-of-interest of human eye is the mid portion of television screen, so the bias light of top just seems more important than two side back lights in the screen.In the time of in the middle of two side back light lines are better than, reach middle preferably background light brightness effects, certainly will need to strengthen the both sides lamplight brightness, thereby cause both sides light strong excessively, influence the TV watching effect, also reduce the light service efficiency simultaneously.At this moment, can prolong the position that axis longitudinally adjusts upward light source.
Fig. 6 is the schematic diagram that the single-point type light source is set on display unit according to the embodiment of the invention.
At light source is under the situation of single-point type light source 61, and the luminous point of single-point type light source 61 is arranged on the axis of vertical direction of display unit back cover.Wherein, two parts that equate about the axis of this vertical direction is divided into display unit.
Alternatively, the luminous point of single-point type light source 61 can be adjusted up and down along the axis of above-mentioned vertical direction.For example, under the bigger situation of the screen size of display unit, the luminous point of single-point type light source can be arranged on center, the axis point on the upper side of above-mentioned vertical direction.
When screen size is big,, cause the both sides background luminance middle relatively stronger easily if having only both sides luminous.Because when normally watching, the main region-of-interest of human eye is the mid portion of television screen, therefore the bias light of top just seems more important than two side back lights in the screen, at this moment, the single-point type light source can be arranged at longitudinal central axis line position on the upper side, promptly can adjust the position of single-point type light source up and down along the longitudinal central axis line of display unit.
Single-point type light source 61 is in middle, TV back cover upper edge light source to be set.So both consider the zone line concern custom that the user televiews, also reduced the use number of light source simultaneously, more energy-conservation.In addition, the single-point type light source package is more suitable in the situation that TV is placed on corner.
Alternatively, above-mentioned strip source 41, two point form light source 51 and single-point type light source 61 can be LED lamp matrix.
According to embodiments of the invention, provide a kind of display unit.
Be provided with light source at the back cover according to the display unit of the embodiment of the invention, wherein, this display unit also comprises: receiving element receives control signal under the situation of opening display unit; Control chip is connected with receiving element with light source, and based on control signal, the control light source carries out luminous.
Wherein, described control signal can be the control signal of display unit self by producing after the background luminance around detecting, and also can be the control signal from the user that receives by input equipments such as remote control equipments.
Based on described control signal, the control light source carries out luminously comprising luminous intensity or the unlatching of controlling light source or closing light source.
In embodiments of the present invention; by under the situation of opening display unit; undertaken luminous by the light source that is arranged at the display unit back cover; even if under the situation of dark; also can reduce the picture brightness of display unit and dark surrounds contrast on every side effectively, and then reach the effect of protection user eyesight.
Fig. 7 is the schematic diagram according to the preferred embodiment of display unit of the present invention.
As shown in Figure 7, above-mentioned display unit can also comprise: light sensitive component and control chip.
Wherein, light sensitive component, the luminous intensity of detection surrounding environment;
Control chip is connected with light sensitive component with light source, regulates the luminous intensity of light source according to luminous intensity.
Wherein, be lower than in luminous intensity under the situation of first threshold, control chip can be controlled the unlatching light source, is higher than in luminous intensity under the situation of second threshold value, and control chip can be controlled and close light source.
Above-mentioned display unit can also comprise: the remote control dash receiver.
Wherein, this remote control dash receiver is connected with control chip, receives the remote signal from remote controller, and wherein, remote signal is used to indicate the brightness to background light to regulate, and perhaps closes or open light source;
Control chip can be regulated the brightness of background light according to above-mentioned remote signal, perhaps closes or open light source.
Preferably, above-mentioned light source is the LED lamp, and light source comprises one of following or a plurality of combination arbitrarily: strip source, two point form light source and single-point type light source.
By adopting LED lamp emerging in the present domestic lighting as main light source.But the LED light fixture has advantages such as energy-conserving and environment-protective, long working life, brightness regulated at will, because LED is solid-state encapsulation, belongs to the cold light source type, need not consider heat dissipation problem basically.
The present invention has mainly designed three kinds of light source configuration modes, as shown in the figure, can be respectively strip source, two point form light source and single-point type light source.
Mentioned three kinds of light source configuration modes among the present invention just are introduced as the main configuration mode of the present invention, also can rationally adjust according to conditions such as television set size, television set placement location, indoor environments certainly.For example two luminous points of two point form light source can be drawn close in the middle of screen, be made intermediate luminance be strengthened.
The present invention can adopt the PWM pulse width modulation controlled to the type of drive of LED lamp.
As shown in Figure 7, by adjusting the duty ratio of fixed frequency square wave, lighting the time of control LED lamp utilizes the adjusting of the lag characteristic realization lamplight brightness of human eye vision again.Because the LED lamp is current control device, the flowed through control of size of current of the inner PN joint of LED lamp of the luminous intensity that is to say it, electric current is big more, and light intensity is big more.But because Current Regulation circuit with respect to voltage-regulation wants relative complex, therefore, on the drive circuit principle, use simple LED switch control, recently realize brightness regulation by the time of control conducting, shutoff.
Wherein light sensation device energy reception environment light intensity becomes light signal into the signal of telecommunication, judges the current environmental background light intensity of watching by control chip, determines whether to turn on television set background light behind, or regulates the brightness of background light.
The remote control dash receiver can allow the user according to self the custom of watching, whether opens background light with the relevant manual selection of option in the menu again, and can open under the situation of background light the brightness of self-defined adjusting background light.
After control chip receives the user's remote control or the signal of light sensation device, the high level duty ratio of the fixed frequency square wave by regulating the N1 base stage, thereby the time that control LED1 anode is received VCC.When the control waveform duty ratio was 1, N1 continued conducting, and VCC is applied on R2 and the LED1 always, and LED1 is in illuminating state always.When duty ratio was 0, N1 was cut off, and the LED1 two ends do not have voltage, therefore was in and extinguished state always.When duty ratio changes between 0～1 when adjusting, the time that the LED1 two ends apply voltage is big and increase along with the change of duty ratio, thus in the monocycle LED1 time of lighting just increase, thereby the brightness that human eye is seen just increases.
The present invention is by arranging light source at television rear shell; utilize the diffuse reflection effect of video wall, this source light is diffused to the going up of television set, left and right three limits, make television image brightness and on every side dark surrounds produce soft transitions; visual fatigue when reducing the user and watching, the protection eyes of user.Cooperate the detection of light sensitive component,, can open background light automatically when indoor lamp closes when dim to the surrounding environment luminous intensity; When surrounding environment is bright, can close background light automatically; Also can carry out ABC according to user's needs.
As can be seen from the above description, the present invention has realized following technique effect:
The present invention can reduce the picture brightness of display unit and dark surrounds contrast on every side, and then reaches the effect of protection user eyesight.
Simple structure of the present invention, adaptability is strong, adopt the LED Lantern Festival can environmental protection, the life-span is long, and change is less on the basis of TV now, has portability stronger on current TV.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the lamp light control method of a display unit is characterized in that, may further comprise the steps:
Under the situation of opening described display unit, receive control signal, and
Based on described control signal, control setting is carried out luminous in the light source of described display unit back cover.
2. method according to claim 1 is characterized in that, control setting is carried out luminous comprising in the light source of described display unit back cover:
Described display unit detects the luminous intensity of surrounding environment; And
Described display unit is regulated the luminous intensity of described light source according to described luminous intensity.
3. method according to claim 2 is characterized in that, the luminous intensity that described display unit is regulated described light source according to described luminous intensity comprises:
Be lower than in described luminous intensity under the situation of first threshold, control described light source and open;
Be higher than in described luminous intensity under the situation of second threshold value, control described light source and close.
4. method according to claim 1 is characterized in that, control setting is carried out luminous comprising in the light source of described display unit back cover:
Described display unit receives the remote signal from remote controller, and wherein, described remote signal is used to indicate the brightness to background light to regulate, and perhaps closes or open described light source;
Described display unit is opened according to described remote signal or is closed described light source, perhaps the luminous intensity of described light source is regulated.
5. a display unit is characterized in that, is provided with light source at the back cover of this display unit, and described display unit also comprises:
Receiving element receives control signal under the situation of opening described display unit;
Control chip is connected with described receiving element with described light source, based on described control signal, controls described light source and carries out luminous.
6. display unit according to claim 5 is characterized in that, also comprises:
Light sensitive component, the luminous intensity of detection surrounding environment;
Wherein, described control chip is connected with described light sensitive component, regulates the luminous intensity of described light source according to described luminous intensity.
7. display unit according to claim 6 is characterized in that described control chip is lower than under the situation of first threshold in described luminous intensity, opens described light source, is higher than in described luminous intensity under the situation of second threshold value, closes described light source.
8. display unit according to claim 6 is characterized in that, also comprises:
The remote control dash receiver is connected with described control chip, receives the remote signal from remote controller, and wherein, described remote signal is used to indicate the brightness to described light source to regulate, and perhaps closes or open described light source;
Wherein, described control chip is controlled described light source based on described remote signal.
9. display unit according to claim 5 is characterized in that, described light source is the LED lamp, and described light source comprises one of following or a plurality of combination arbitrarily:
Strip source, two point form light source and single-point type light source.
10. display unit according to claim 9 is characterized in that:
At described light source is under the situation of strip source, and described strip source is arranged at the back cover middle and upper part of display unit, luminous point run through described display unit about and described luminous point towards the back upper place of described display unit;
At described light source is under the situation of two point form light source, and two luminous points of described two point form light source are arranged at the left and right sides of described display unit back cover respectively;
At described light source is under the situation of single-point type light source, and the luminous point of described single-point type light source is arranged on the axis of above-below direction of described display unit back cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010138639 CN101778516A (en) | 2010-03-18 | 2010-03-18 | Display device and light control method thereof |
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| CN 201010138639 CN101778516A (en) | 2010-03-18 | 2010-03-18 | Display device and light control method thereof |
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| CN104766549A (en) * | 2015-03-27 | 2015-07-08 | 广东欧珀移动通信有限公司 | Mobile equipment and method capable of expanding lighting effect of display screen |
| CN105049925A (en) * | 2015-06-25 | 2015-11-11 | 深圳创维数字技术有限公司 | Light ray adjusting method and apparatus |
| CN105759595A (en) * | 2016-05-06 | 2016-07-13 | 奥英光电（苏州）有限公司 | Circuit for indicating time and display device |
| CN106383415A (en) * | 2016-11-24 | 2017-02-08 | 微鲸科技有限公司 | Device for self-supplying ambient light, method and display equipment |
| CN106920502A (en) * | 2017-05-12 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of control method of display device and display device |
| CN109147562A (en) * | 2018-09-25 | 2019-01-04 | 京东方科技集团股份有限公司 | Display device and its control method |
| CN109683560A (en) * | 2018-11-06 | 2019-04-26 | 闽江学院 | A kind of intelligent lamp control method and device |
| CN114203118A (en) * | 2021-09-10 | 2022-03-18 | 广东夏野日用电器有限公司 | Eye protection system, light reflection environment judgment method and electronic display device |
| CN114435233A (en) * | 2022-02-21 | 2022-05-06 | 重庆长安汽车股份有限公司 | Vehicle headlamp user-defined control system and user-defined method |
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| CN104766549A (en) * | 2015-03-27 | 2015-07-08 | 广东欧珀移动通信有限公司 | Mobile equipment and method capable of expanding lighting effect of display screen |
| CN105049925A (en) * | 2015-06-25 | 2015-11-11 | 深圳创维数字技术有限公司 | Light ray adjusting method and apparatus |
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| CN109147562A (en) * | 2018-09-25 | 2019-01-04 | 京东方科技集团股份有限公司 | Display device and its control method |
| CN109683560A (en) * | 2018-11-06 | 2019-04-26 | 闽江学院 | A kind of intelligent lamp control method and device |
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| CN114203118A (en) * | 2021-09-10 | 2022-03-18 | 广东夏野日用电器有限公司 | Eye protection system, light reflection environment judgment method and electronic display device |
| CN114435233A (en) * | 2022-02-21 | 2022-05-06 | 重庆长安汽车股份有限公司 | Vehicle headlamp user-defined control system and user-defined method |
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Application publication date: 20100714 |