CN202034007U - LED display module with adjustable brightness and household electrical appliance using the display module - Google Patents
LED display module with adjustable brightness and household electrical appliance using the display module Download PDFInfo
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- CN202034007U CN202034007U CN2010206806377U CN201020680637U CN202034007U CN 202034007 U CN202034007 U CN 202034007U CN 2010206806377 U CN2010206806377 U CN 2010206806377U CN 201020680637 U CN201020680637 U CN 201020680637U CN 202034007 U CN202034007 U CN 202034007U
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Abstract
An LED display module with an adjustable brightness comprises an LED array composed of a plurality of rows of LEDs and a plurality of column of LEDs, a row control element carrying out a row selection for the LED array, a column control element carrying out a column selection for the LED array, and a microprocessor controlling the row control element and the column control element. An LED brightness adjusting element is also comprised, and is responsible for receiving the instruction of the microprocessor, controlling the size of the obtained energy of one column of the LED array, and adjusting the brightness of the column of the LED.
Description
[technical field]
The utility model relates to a kind of display device, refers in particular to a kind of LED display module of adjustable brightness and uses the household electrical appliance of this display module.
[background technology]
LED (Light Emitting Diode, light emitting diode) has long service life, low power consumption and other advantages, for a long time, the led array that the oil several rows are listed as single led composition is widely used as the LED display module always, such LED display module also is widely used in household appliance technical field, be beneficial to the display as refrigerator, the running parameter that this display can display refrigerator, for example temperature of the reefer of display refrigerator, refrigerating chamber etc.
But, the Presentation Function of present LED display module is more single, for example: the led array that specific line number adds a refrigerator of specific columns can only be used to the function that shows that certain is specific, the running parameter of display refrigerator for example, if want in the running parameter of display refrigerator again the duty of display refrigerator (described duty refer to refrigerator whether the state that waits working properly), then need to increase extra led array, this must cause the rising of cost, and the shortcomings such as area increase of viewing area.
[summary of the invention]
The household electrical appliance that the purpose of this utility model is to provide a kind of LED display module of adjustable brightness and uses this LED display module.
Correspondingly, the LED display module of the adjustable brightness of a kind of embodiment of the present utility model comprises the led array of being made up of several rows and some row, capable control element to the capable choosing of described led array, described led array is carried out the row control element of column selection, and the microprocessor of controlling described capable control element and row control element, it is characterized in that, also comprise LED brightness regulation element, described LED brightness regulation element receives the instruction of described microprocessor, control the size of the energy that a certain LED row in the described led array are obtained, adjust the brightness of these LED row.
As further improvement of the utility model, described capable control element comprises the darlington array triode, described row control element comprises column selection triode group, the single led break-make in the described led array of the common control of described capable control element and described row control element.
As further improvement of the utility model, described LED brightness regulation element comprises the Control of Voltage triode, described microprocessor sends pulse width modulating signal, control the make-and-break time of described Control of Voltage triode by the dutycycle of regulating described pulse width modulating signal, the energy size of the described Control of Voltage triode of control input.
Correspondingly, the household electrical appliance of a kind of embodiment of the present utility model, for example refrigerator, washing machine or kitchen appliance, it comprises the duty that shows described household electrical appliance and the display of running parameter, it is characterized in that described display comprises the LED display module.Described LED display module comprises the led array of being made up of several rows and some row, capable control element to the capable choosing of described led array, described led array is carried out the row control element of column selection, and the microprocessor of controlling described capable control element and row control element, it is characterized in that, also comprise LED brightness regulation element, described LED brightness regulation element receives the instruction of described microprocessor, control the size of a certain row energy that LED obtained in the described led array, adjust the brightness of these row LED.
The beneficial effects of the utility model are: adopt the LED brightness regulation element by microprocessor control, control the make-and-break time of described Control of Voltage triode by the dutycycle of regulating impulse bandwidth modulation signals, the energy size of the described Control of Voltage triode of control input, thereby realize control to the brightness height of a certain row LED, make led array both can show the running parameter of household electrical appliance, the duty that can show household electrical appliance is arranged, on existing design basis, increase function, and saved cost.
[Brief Description Of Drawings]
Fig. 1 is the structural representation of the LED display module of a kind of embodiment of the present utility model.
[embodiment]
With reference to figure 1, the LED display module of a kind of embodiment of the present utility model comprises microprocessor 1, row control element 2, energy supply element 3, LED brightness regulation element 4, row control element 5, and led array 6.
Described led array 6 is by plurality of rows and some row are single led is arranged in a combination, and the quantity of described row and column can increase and decrease according to the needs of concrete display environment.Comprise capable control element 2 and row control element 5LED array 6 with the element that led array 6 directly is connected, in the present embodiment, described capable control element 2 is the darlington array triode, the principle of work of darlington array has been the common practise of this area, do not repeat them here, described row control element 5 is column selection triode group, in the utility model, the command signal that described capable control element 2 and described row control element 5 receive from microprocessor, any one single led break-make in the described led array of common control, thus realize the single led control of lighting or extinguishing.
In the utility model, LED brightness regulation element 4 is Control of Voltage triodes, and this Control of Voltage triode connects microprocessor 1 respectively, energy supply element 3, and row control element 5.Wherein, microprocessor 1 sends pulse width modulating signal (PWM, Pulse Width Modulation) to this Control of Voltage triode, and the dutycycle of described pulse width modulating signal (Duty Ratio) is adjustable.Energy supply element 3 is used for providing to led array 6 by this Control of Voltage triode lights the required energy of LED.Row control element 5 receives from the energy after the control of Control of Voltage triode, and distribution is transferred to the LED row that corresponding needs are lighted.Particularly, the energy that obtains of the LED of each row is as follows:
P
The LED row=P*DR/n
Wherein: the gross energy of P input, DR is the dutycycle of pulse width modulating signal, n is the columns of led array.
By top formula as can be known, because dutycycle DR is adjustable, so certain or some specific row, as long as adjust the size of dutycycle, just can adjust these row the size of getable energy, and the brightness of LED is big or small directly related with its resulting energy, and along with the adjustment of energy, the brightness of LED row is adjusted thereupon.It should be noted that, in the method for adjustment of the present utility model, the energy of the single led acquisition in each row remains identical, and the energy that the LED of different lines row obtain can be different, can there be difference in the brightness that can guarantee single led row so, and can have difference between a plurality of LED row.
The adjustable brightness joint of led array makes and shows simultaneously that with led array the running parameter of household electrical appliance and duty become possibility.Light-emitting diode display with refrigerator is an example; led array on this display has the viewing area two of running parameter temperature of the refrigerating chamber of the viewing area one of the running parameter temperature of the reefer of display refrigerator respectively and display refrigerator; and the brightness degree that the control system of refrigerator is set viewing area one represents that reefer is working properly during for A; the brightness degree of viewing area one is represented the reefer operation irregularity during for B; the viewing area is once the duty that can realize not only having realized by same viewing area the running parameter but also the display refrigerator of display refrigerator like this; promptly the selectivity of the LED in the capable and/or LED row is lighted and is formed numeral so that show the running parameter temperature by the LED in the viewing area one, is A by the brightness degree of selecting viewing area one simultaneously or is normally or unusually for B represents the duty of reefer.
More than be a kind of better embodiment of the present utility model, it is pointed out that those of ordinary skill in the art can make adaptive change based on the announcement of present embodiment on the basis of not paying creative work.For example; LED display module of the present utility model can use flexibly on the display of various household electrical appliance; and be not limited only to refrigerator; can also comprise washing machine; range hood in the kitchen appliance or the like, this rational change should be within the protection domain of claim of the present utility model.
Claims (4)
1. the LED display module of an adjustable brightness, it comprises the led array of being made up of several rows and some row, capable control element to the capable choosing of described led array, described led array is carried out the row control element of column selection, and the microprocessor of controlling described capable control element and row control element, it is characterized in that, also comprise LED brightness regulation element, described LED brightness regulation element receives the instruction of described microprocessor, control the size of the energy that a certain LED row in the described led array are obtained, adjust the brightness of these LED row.
2. LED display module as claimed in claim 1, it is characterized in that, described capable control element comprises the darlington array triode, described row control element comprises column selection triode group, the single led break-make in the described led array of the common control of described capable control element and described row control element.
3. LED display module as claimed in claim 1 or 2, it is characterized in that, described LED brightness regulation element comprises the Control of Voltage triode, described microprocessor sends pulse width modulating signal, control the make-and-break time of described Control of Voltage triode by the dutycycle of regulating described pulse width modulating signal, the energy size of the described Control of Voltage triode of control input.
4. household electrical appliance comprise the duty that shows described household electrical appliance and the display of running parameter, it is characterized in that described display comprises as the described LED display module of one of above any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206806377U CN202034007U (en) | 2010-12-24 | 2010-12-24 | LED display module with adjustable brightness and household electrical appliance using the display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206806377U CN202034007U (en) | 2010-12-24 | 2010-12-24 | LED display module with adjustable brightness and household electrical appliance using the display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034007U true CN202034007U (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206806377U Expired - Lifetime CN202034007U (en) | 2010-12-24 | 2010-12-24 | LED display module with adjustable brightness and household electrical appliance using the display module |
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| CN (1) | CN202034007U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903594A (en) * | 2014-04-14 | 2014-07-02 | 珠海格力电器股份有限公司 | Remote controller, household appliance and control method and device of display of household appliance |
| CN105992430A (en) * | 2015-02-04 | 2016-10-05 | 秦昊宇 | Household lattice LED illumination display system |
| CN109996374A (en) * | 2017-12-29 | 2019-07-09 | 松下电气机器（北京）有限公司 | Lamps and lanterns, lamp control device and lamp system |
| CN111627398A (en) * | 2019-04-30 | 2020-09-04 | 咸阳金钻数码有限公司 | Liquid crystal display backlight picture following dynamic control technology |
-
2010
- 2010-12-24 CN CN2010206806377U patent/CN202034007U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903594A (en) * | 2014-04-14 | 2014-07-02 | 珠海格力电器股份有限公司 | Remote controller, household appliance and control method and device of display of household appliance |
| CN105992430A (en) * | 2015-02-04 | 2016-10-05 | 秦昊宇 | Household lattice LED illumination display system |
| CN109996374A (en) * | 2017-12-29 | 2019-07-09 | 松下电气机器（北京）有限公司 | Lamps and lanterns, lamp control device and lamp system |
| CN111627398A (en) * | 2019-04-30 | 2020-09-04 | 咸阳金钻数码有限公司 | Liquid crystal display backlight picture following dynamic control technology |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |
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| CX01 | Expiry of patent term |