CN202013724U

CN202013724U - LED dynamic-static separation realization circuit and air conditioner equipped therewith

Info

Publication number: CN202013724U
Application number: CN201020698274XU
Authority: CN
Inventors: 孙江涛
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Shandong Air Conditioning Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-10-19
Anticipated expiration: 2020-12-29

Abstract

The utility model discloses an LED dynamic-static separation realization circuit and an air conditioner equipped therewith. The LED dynamic-static separation realization circuit comprises an M*N LED array, wherein the LED includes dynamic display LEDs and static display LEDs, M and N are positive integers. All dynamic display LEDs are arranged as a matrix with P independent rows or columns, wherein P is a positive integer no larger than M and no larger than N, the input end of the circuit receives an LED address selection signal. By forming all dynamic display LEDs into independent rows or columns, when the dynamic display LEDs flash at a certain frequency, the static display LEDs can not flash at the same frequency.

Description

The LED sound is separated the air conditioner of realizing circuit and having described circuit

Technical field

The utility model relates to a kind of LED display circuit technical field, specifically, relates to a kind of LED sound separation circuit and has the air conditioner of described circuit structure.

Background technology

The display screen of some household electrical appliances be by several LED according to certain series arrangement, realize to show different contents.Along with the display screen content displayed is more and more abundanter, more and more refinement, the user has certain requirement to display effect.In the led circuit topological design, can be dynamically to show LED and the static LED of demonstration as required with LED display layout, the circuit of present household electric appliances LED, general only, circuit accessible according to the wiring of LED succinctly carries out the LED layout, if so existing dynamic demonstration LED in a certain row or certain delegation, the static LED of demonstration is arranged again, when display screen when scanning, the light and shade that the state variation that dynamically shows LED will make the static state of same column or row show that same frequency appears in LED changes.

Present air conditioner display screen, be to form by several LED ranks arranged, display screen is provided with dynamic pattern and static pattern according to demand, according to the requirement of display pattern, with dynamic LED and the static state demonstration LED of showing of the LED difference layout one-tenth of different pattern correspondence.As shown in Figure 1, be domestic air conditioner 2 * 11 * 7 display screen LED ranks matrix, wherein L5, L5 ', L5 " be dynamically to show LED,, circuit succinct principle accessible according to the wiring of LED carried out layout; be distributed in the L26 of same row, L26 ', L26 with them ", L45, L45 ', L46 and L46 ' are the static LED of demonstration, and each input terminal of circuit is by being connected with the IO port of CPU, the CPU OPADD is selected signal, realizes lighting and extinguishing of LED.

Adopt this traditional mode layout L ED circuit, when operate as normal, L5, L5 ', L5 " duty be set to out close 1 second in 1 second, do not stop flicker; L26 simultaneously, L26 ', L26 ", L45, L45 ', L46 and L46 ' are subjected to L5, L5 ', L5 " influence of lamp, the light and shade that same frequency occurs changes; be reacted in the display screen, and the pattern that can occur being correlated with little flashing occur and resembles, and influences display effect.

Based on this, how to research and develop LED layout circuit in a kind of display screen, will show dynamically that LED and the static LED of demonstration separate layout, thereby show that dynamically LED can not show that LED impacts to static state, be the subject matter that the utility model need solve.

The utility model content

The utility model dynamically shows the problem that the static LED of demonstration of LED influence shows in solving in the existing led circuit, a kind of LED sound separation circuit is provided, all are shown that dynamically LED forms independently row or row, avoid dynamically showing that LED shows that to static state LED impacts.

In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:

A kind of LED sound is separated the realization circuit, the LED ranks matrix that comprises M * N, described LED comprises dynamic demonstration LED and the static LED of demonstration, described M, N are positive integer, described all dynamic LED of demonstration are independently formed the matrix that P is capable or P is listed as, described P is the positive integer that is not more than M and is not more than N, and the input terminal of described circuit receives the LED address signal.

Preferably, in order to simplify circuit structure, described P equals 1.

Further, described circuit input end connects controller, receives the LED address signal of controller output.

Further again, described controller is a kind of of CPU, MCU or MPU.

Described controller preferably adopts MCU.

Based on above-mentioned a kind of circuit, the utility model provides a kind of a kind of air conditioner of air conditioner that adopts described circuit design display screen again, comprise controller and LED display circuit, described LED display circuit comprises the LED ranks matrix of M * N, described LED comprises dynamic demonstration LED and the static LED of demonstration, wherein, described M, N is a positive integer, it is characterized in that, in described LED display circuit, described all dynamic LED of demonstration are independently formed the matrix that P is capable or P is listed as, described P is the positive integer that is not more than M and is not more than N, the input terminal of described circuit connects controller, receives the LED address signal of controller output.

Further, in order to simplify circuit structure, described P equals 1.

Further again, described controller is a kind of of CPU, MCU or MPU.

Wherein, described controller preferably adopts MCU.

Compared with prior art, advantage of the present utility model with good effect is: a kind of LED sound of the present utility model is separated the realization circuit, by all dynamic demonstration LED being formed independently row or row, when dynamic demonstration LED glimmers according to certain frequency, little the flashing that same frequency can not appear in static demonstration LED resembles, and makes display screen more attractive in appearance.

After reading the detailed description of the utility model embodiment in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.

Description of drawings

Fig. 1 is prior art LED ranks matrix circuits;

Fig. 2 is the air conditioner display screen synoptic diagram of a kind of embodiment of the utility model;

Fig. 3 is the air conditioner display screen LED ranks matrix circuit of a kind of embodiment of the utility model.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.

Embodiment one, and a kind of LED sound of present embodiment is separated the realization circuit, as shown in Figure 3, LED ranks matrix with 2 * 11 * 7 is an example, describes the principle of present embodiment in detail, and wherein 2 * 11 * 7 LED ranks matrix representation is the LED ranks matrix of 2 11 row 7 row, in said ranks matrix, the L4 of the 5th row, L4 ', L4 "; L5, L5 ', L5 ", L6, L7, L9, L10, for dynamically showing LED, all the other are the static LED of demonstration, and when operate as normal, the LED of the 5th row need open and close 1 second in 1 second, do not stop flicker, other LED are not all normal bright according to the state that is provided with or often go out, and do not need flicker, when controller carries out column scan to LED, all dynamic demonstration LED are because at same column, between can not cause the phenomenon of little sudden strain of a muscle, and owing in the 5th row, there is not the static LED of demonstration, so when column scan, can not show that LED causes the phenomenon of little sudden strain of a muscle to static state yet, all static state is shown that LED is arranged in 1 row, avoided dynamic demonstration LED that static state is shown that LED impacts.

The sub-1-36 of the circuit input end of this enforcement connects peripheral control unit, receive the LED address signal of peripheral control unit output, lighting or extinguish by peripheral control unit control LED, described peripheral control unit can be for CPU, MCU or MPU a kind of, preferably adopt MCU in order to save cost, certainly, can select other controllers according to actual needs, the selection of controller does not become restriction condition of the present invention.

All in the present embodiment LED are common cathode, column scan need will show that dynamically LED is listed as altogether, form the P row separately, in like manner, if side circuit is that LED is carried out line scanning in being provided with, therefore will dynamically show the LED concurrence by actual conditions, it is capable to form P separately, and wherein P is a positive integer, and the value of P need show that dynamically the number of LED is definite according to side circuit layout and all, in order to simplify circuit structure, P=1 is set preferably in the present embodiment.

The dynamic LED of demonstration is located at in delegation or the same row with the static LED of demonstration is mixed the utility model in the existing display screen in order to solve, when display screen carries out line scanning or column scan, dynamically the blink states of demonstration LED can cause with it and show that in the static state with delegation or same row LED little flashing occur and resembles, the realization circuit that the LED sound is separated in a kind of display screen is provided, to show dynamically that in circuit LED is located at separately with in delegation or the same row, when the addressing signal that MCU sends carries out line scanning or column scan, dynamically show when LED shows static state not to be shown that LED impacts.

Be example with domestic air conditioner 2 * 11 * 7 display screen circuit below, elaborate the realization circuit that the LED sound is separated in the described display screen, and adopt the principle of work of this circuit by a specific embodiment.

Embodiment two, the domestic air conditioner of present embodiment comprises controller and LED display circuit, wherein, the LED display circuit comprises 2 * 11 * 7 LED ranks matrix, comprise dynamic demonstration LED and the static LED of demonstration in the described LED ranks matrix, referring to shown in Figure 2, air conditioner display screen synoptic diagram for present embodiment, L4, L4 ', L4 " and L5, L5 ', L5 " form two light-emitting sections, when operate as normal, need open and close 1 second in 1 second, the pattern that shows is a dynamic pattern, in addition, L6, L7, L9 and L10 dynamically show, form dynamic pattern.As shown in Figure 3, be the inner LED ranks of present embodiment air conditioner 2 * 11 * 7 display screens matrixes, i.e. 2 11 row, the 7 LED matrixes that are listed as.Described LED common cathode is arranged, controller is connected with the input terminal 1-36 of LED display circuit, controls LED in the described LED array and lights or extinguish, and is concrete, controller is selected the LED that lights or extinguish as required by sending address signal to led circuit.

Described controller can be for CPU, MCU or MPU a kind of, in the present embodiment, controller preferably adopts MCU, for the structure of the matrix of LED ranks shown in the reduced graph 3, therefore in Fig. 3 the MCU controller is not marked.

Because when showing that dynamically LED and the static LED of demonstration are arranged in same column, owing to dynamically show the flicker that LED does not stop, cause the total current of its column that tangible fluctuation is arranged, therefore show that with the static state of dynamic demonstration LED same column little the flashing that same frequency also can appear in LED resembles, in the described LED display circuit of present embodiment, to dynamically show LED:L4, L4 ', L4 " and L5; L5 '; L5 ", L6, L7, L9 and L10 independently form the matrix of 1 row, when MCU sends address signal to dynamic demonstration LED, control LED closed frequency action in 1 second in 1 second according to opening, owing in same row, do not arrange the static LED of demonstration, show dynamically that therefore the light and shade that LED can not cause the static LED of demonstration same frequency to occur changes.

In the present embodiment, described P preferably equals 1, is about to all and shows that dynamically LED forms 1 row separately, has saved circuit space MCU interface.

The air conditioner display screen circuit of present embodiment is by all dynamic demonstration LED are formed 1 row separately, and when dynamic demonstration LED glimmered according to certain frequency, little the flashing that same frequency can not appear in static demonstration LED resembled, and makes display screen more attractive in appearance.

Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.

Claims

1. a LED sound is separated the realization circuit, the LED ranks matrix that comprises M * N, described LED comprises dynamic demonstration LED and the static LED of demonstration, described M, N are positive integer, it is characterized in that: described all dynamic LED of demonstration are independently formed the matrix that P is capable or P is listed as, described P is the positive integer that is not more than M and is not more than N, and the input terminal of described circuit receives the LED address signal.

2. LED sound according to claim 1 is separated the realization circuit, and it is characterized in that: described P equals 1.

3. LED sound according to claim 1 and 2 is separated the realization circuit, it is characterized in that: described circuit input end connects controller, receives the LED address signal of controller output.

4. LED sound according to claim 3 is separated the realization circuit, and it is characterized in that: described controller is a kind of of CPU, MCU or MPU.

5. LED sound according to claim 4 is separated the realization circuit, and it is characterized in that: described controller is MCU.

6. air conditioner, comprise controller and LED display circuit, described LED display circuit comprises the LED ranks matrix of M * N, described LED comprises dynamic demonstration LED and the static LED of demonstration, wherein, described M, N are positive integer, it is characterized in that, in described LED display circuit, described all dynamic LED of demonstration are independently formed the matrix that P is capable or P is listed as, described P is the positive integer that is not more than M and is not more than N, and the input terminal of described circuit connects controller, receives the LED address signal of controller output.

7. air conditioner according to claim 6 is characterized in that: described P equals 1.

8. according to claim 6 or 7 described air conditioners, it is characterized in that: described controller is a kind of of CPU, MCU or MPU.

9. air conditioner according to claim 8 is characterized in that: described controller is MCU.