CN201194153Y

CN201194153Y - Dot-matrix LED display screen rotationally displaying graph and text

Info

Publication number: CN201194153Y
Application number: CNU2008200357767U
Authority: CN
Inventors: 章永节; 陈龙山
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-29
Filing date: 2008-04-29
Publication date: 2009-02-11
Anticipated expiration: 2018-04-29

Abstract

The utility model discloses a dot matrix LED display screen for rotationally displaying pictures and texts comprising a plurality of LEDs fixed on a substrate, a plurality of electric connecting substrates and a program control device for controlling the LEDs luminescent; the dot matrix LED display screen also comprises a motor, the substrates are fixed on the rotary shaft of the motor, while the LEDs are arranged in a shape of strip on the substrate to form at least one luminescent strip. The display mode of the utility model greatly reduces the LED amount at the same time of getting good display effect comparing to the conventional static plane LED dot matrix display mode. The calorific value is low, the power consumption is low and the electricity consumption is low, which is useful for energy saving and production cost saving.

Description

Rotation shows the dot matrix LED display screen of picture and text

Technical field

The utility model relates to a kind of dot matrix LED display screen that shows picture and text of rotating.

Background technology

Present dot matrix LED display screen is controlled sequence of light and the fluorescent lifetime length of each LED by Single Chip Microcomputer (SCM) program, thereby is reached changing patterns by becoming a plurality of LED of regular array arrangement on the plane to constitute, and transmits the function of Word message.The scale of this class dot matrix LED display screen does not wait according to the usage quantity difference of LED; Some large-scale dot matrix LED display screen, as curtain wall formula billboard, highway message board etc., often need to adopt hundreds of, several thousand even up to ten thousand LED, bypass the installation cost of these LED and base plate line thereof, advertising framework and do not talk, the operating cost expense of these LED of light light is just very high.And the display effect of this class dot matrix LED display screen in order to obtain, need to improve the LED density in the array, often the LED quantity that adopts in practice is just more.In a word, existing dot matrix LED display screen adopts static planar LED dot matrix display mode mostly, and this advertising lamp is because the LED quantity that adopts is many, its thermal value is big during operation, and power consumption is big, the power consumption height, the operation expense height is unfavorable for energy-conservation and the saving manufacturing cost.

Summary of the invention

The utility model purpose is: at the deficiency of the existing dot matrix LED display screen of mentioning in the background technology, a kind of dot matrix LED display screen that shows picture and text of rotating is provided, it has significantly reduced LED quantity but can obtain good display effect, helps energy-conservation and the saving manufacturing cost.

The technical solution of the utility model is: a kind of dot matrix LED display screen that shows picture and text of rotating comprises several LED and the electrical connection substrate that is fixed on the substrate and controls the luminous presetting apparatus of these LED; It also comprises motor, and described substrate is fixed on this shaft of motor, and aforementioned LED stripe-arrangement on substrate becomes at least one luminous zone.

Principle of the present utility model is actually " the persistence of vision character " or " vision lag-effect " of having utilized human eye.People's eyes are generally 1/16～1/24S to dynamic frequency resolution, for example the movie film projector is with the speed pulleying of 24 frames/s, because the vision lag-effect makes the single tableaux of appearing before one's eyes on screen, become the graphic screen of continuous action, mixed sound and just become film.And the utility model luminous zone that installation at least one is formed by some LED stripe-arrangement on the substrate that can stablize rotation, when static, LED is clear to be arranged in the luminous zone of strip, quickening along with the substrate rotational speed, it is general when angular velocity is greater than or equal to 10rad/s, because " the vision lag-effect " of human eye will produce just like LED is clouded in the illusion on the substrate rotation disc; This moment is at presetting apparatus, for example write the microprocessor MCU of the picture and text program that prelists or picture and text are housed and show under the accurate sequential control of host computer of Control Software, these LED constantly scan default pattern, symbol and literal on the rotation disc of substrate, give brand-new sensation.

Luminous zone described in the utility model can have only one.And the rotation center of described substrate, it also is the tie point of substrate and motor rotary shaft, the length mid point of preferential same this luminous zone that is provided with overlaps, LED in this luminous zone preferably evenly is spaced simultaneously, the purpose of doing like this is when being convenient to the substrate faster rotational speed, the distribution density of LED on substrate rotation disc is even, is beneficial to and strengthens the picture and text display effect, also is convenient to picture and text and shows writing and controlling of Control Software.But it is single to exist the picture and text quality by the LED distribution plane that a single luminous zone rotation forms, and the LED distribution density is rare, and these shortcomings of black area are arranged.

Certainly the luminous zone described in the utility model also can be one or more.And described some luminous zones preferably intersect at same point, and this point of crossing is the mid point of each bar luminous zone length simultaneously, and overlap with the rotary middle point of substrate, and the LED in same luminous zone evenly is spaced.Because many luminous zone intersects, when the substrate faster rotational speed, the LED in the different luminous zones forms and intersects, compare the LED distribution plane that forms by a luminous zone rotation, improve the distribution density of LED undoubtedly, eliminated the black area, helped further strengthening the picture and text display effect.And each bar luminous zone that the utility model further will intersect is selected different colors, can realize full-color colour mixture under the control of presetting apparatus, improves the imaging effect of colored picture and text.

The utility model advantage is:

1, display mode of the present utility model is compared traditional static planar LED dot matrix display mode, when obtaining good display effect, has but significantly reduced the LED usage quantity, its thermal value is low during operation, power consumption is little, and little power consumption helps energy-conservation and the saving manufacturing cost.

2, the some preferred arranged crosswise of luminous zone that formed by the LED arrangement in the utility model have improved the LED distribution plane density that the luminous zone rotation forms, and have eliminated the black area, help further strengthening the picture and text display effect.

3, some luminous zones of arranged crosswise are further selected different colors in the utility model, and the control that is beneficial at presetting apparatus realizes full-color colour mixture, improves the imaging effect of colored picture and text.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the front view of the utility model specific embodiment;

Fig. 2 is a vertical view embodiment illustrated in fig. 1.

Wherein: 1, substrate, 2, luminous zone; 3, motor; 4, rotating shaft; 5, liner plate.

Embodiment

Embodiment: in conjunction with Fig. 1, Figure 2 shows that the utility model rotation shows a kind of embodiment of the dot matrix LED display screen of picture and text, it by substrate 1, be fixed in several LED on the substrate 1, be electrically connected substrate 1 and control the luminous presetting apparatus of these LED, motor 3 and liner plate 5 and constituted.

In the present embodiment, motor 3 is fixed on the liner plate 5, and its rotating shaft 4 is passed liner plate 5 and fixing with substrate 1, and point of fixity also is the rotary middle point of substrate 1.The same advertising framework of the effect of described liner plate 5 is used for supporting and locating whole device.Described LED stripe-arrangement on substrate 1 becomes three luminous zones 2.These three luminous zones 2 intersect at same point, and this point of crossing is the mid point of each bar luminous zone 2 length simultaneously, and overlap with the rotary middle point of substrate 1, and the LED in same luminous zone 2 evenly is spaced.And the color difference of three luminous zones 2 in the present embodiment.

The preferred microprocessor MCU of presetting apparatus in the present embodiment, the LED in each luminous zone 2 is electrically connected with the I/O mouth of microprocessor MCU, and prelist picture and text and picture and text show that Control Software is stored in respectively among the microprocessor MCU.

The principle of work of present embodiment is actually " the persistence of vision character " or " vision lag-effect " of having utilized human eye.People's eyes are generally 1/16～1/24S to dynamic frequency resolution, for example the movie film projector is with the speed pulleying of 24 frames/s, because the vision lag-effect makes the single tableaux of appearing before one's eyes on screen, become the graphic screen of continuous action, mixed sound and just become film.And present embodiment is installed three luminous zones 2 that formed by some LED stripe-arrangement on the substrate 1 of stable rotation, when static, LED is clear to be arranged in the luminous zone 2 of strip, quickening along with substrate 1 rotational speed, it is general when angular velocity is greater than or equal to 10rad/s, because " the vision lag-effect " of human eye will produce just like LED is clouded in the illusion on the substrate 1 rotation disc; This moment, these LED constantly scanned default pattern, symbol and literal on the rotation disc of substrate 1, give brand-new sensation under the accurate sequential control of microprocessor MCU.

And in the present embodiment since three non-homochromy luminous zones 2 intersect, when substrate 1 faster rotational speed, LED in the different luminous zones 2 forms and intersects, compare the LED distribution plane that forms by 2 rotations of a luminous zone, improved the distribution density of LED undoubtedly, eliminate the black area, helped further strengthening the picture and text display effect.The luminous zone 2 of three kinds of different colours has been realized full-color colour mixture under the control of microprocessor MCU simultaneously, has improved the imaging effect of colored picture and text.

Claims

1. one kind is rotated the dot matrix LED display screen that shows picture and text, comprises several LED and the electrical connection substrate (1) that is fixed on the substrate (1) and controls the luminous presetting apparatus of these LED; It is characterized in that it also comprises motor (3), described substrate (1) is fixed in the rotating shaft (4) of this motor (3), and aforementioned LED becomes at least one luminous zone (2) in the last stripe-arrangement of substrate (1).

2. rotation according to claim 1 shows the dot matrix LED display screen of picture and text, it is characterized in that described LED goes up stripe-arrangement at substrate (1) and becomes a luminous zone (2).

3. rotation according to claim 2 shows the dot matrix LED display screen of picture and text, it is characterized in that the rotation center of described substrate (1) overlaps with the length mid point of this luminous zone (2).

4. rotation according to claim 1 shows the dot matrix LED display screen of picture and text, it is characterized in that described LED goes up stripe-arrangement at substrate (1) and becomes the luminous zone (2) of one or more.

5. rotation according to claim 4 shows the dot matrix LED display screen of picture and text, it is characterized in that described some luminous zones (2) intersect at same point.

6. according to the dot matrix LED display screen of claim 2 or 5 described rotations demonstration picture and text, it is characterized in that the LED in described same the luminous zone (2) evenly is spaced.

7. rotation according to claim 5 shows the dot matrix LED display screen of picture and text, it is characterized in that the mid point of the point of crossing of some luminous zones (2) for each bar luminous zone (2) length, and this point of crossing overlaps with the rotary middle point of substrate (1).

8. rotation according to claim 5 shows the dot matrix LED display screen of picture and text, it is characterized in that described each bar luminous zone (2) is not homochromy.