CN205140426U - Led display screen - Google Patents
Led display screen Download PDFInfo
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- CN205140426U CN205140426U CN201520878550.3U CN201520878550U CN205140426U CN 205140426 U CN205140426 U CN 205140426U CN 201520878550 U CN201520878550 U CN 201520878550U CN 205140426 U CN205140426 U CN 205140426U
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- display unit
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- control signal
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Abstract
The utility model discloses a LED display screen. Wherein, this LED display screen includes: pixel is including a display element and the 2nd display element, the control unit is connected with a display element and the 2nd display element respectively for it is luminous to control a display element and/or the 2nd display element, so that pixel is luminous according to presetting the rule. The utility model provides a pixel damage the technical problem of the screen picture disappearance that causes.
Description
Technical field
The utility model relates to LED field, in particular to a kind of LED display.
Background technology
Existing LED display is rearranged by multiple LED pixel cell, shows corresponding color after each LED pixel cell receives signal.Fig. 1 is the front view of the LED display of prior art, and Fig. 2 is the enlarged drawing of A ' in Fig. 1, shows the display unit comprised in a pixel cell A '.Fig. 3 is the rear view of the LED display of prior art, B ' is a driving chip array, 11 ' is data input pin, 12 ' is power input, 13 ' is data output end, pixel cell shown in driving chip shown in Fig. 3 and Fig. 1 is arranged on the two sides of a pcb board, luminous by the pixel cell of the LED display shown in driving chip control chart 1, thus achieves the image display of LED display.
As shown in Figure 1, existing LED display is shown by pixel cell luminescence, if having certain pixel cell fault or damage, then this pixel cell just can not be luminous or display is abnormal again, the display information dropout in LED display will be caused, the image on screen is lacked.
For above-mentioned problem, at present effective solution is not yet proposed.
Utility model content
The utility model embodiment provides a kind of LED display, at least to solve the technical matters that pixel cell damages the screen picture disappearance caused.
According to an aspect of the utility model embodiment, provide a kind of LED display, comprising: pixel cell, comprise the first display unit and the second display unit; Control module, is connected with described second display unit with described first display unit respectively, for controlling described first display unit and/or described second display unit luminescence, to make described pixel cell luminous according to preset rules.
Further, described control module comprises: controller, for generating control signal; First driving chip, is connected with described first display unit with described controller, for driving described first display unit luminous according to described control signal; Second driving chip, is connected with described second display unit with described controller, for driving described second display unit luminous according to described control signal.
Further, described control signal comprises the first control signal, the second control signal and the 3rd control signal, wherein, it is luminous that described first driving chip controls separately described first display unit according to described first control signal, to make described pixel cell luminous according to described preset rules; It is luminous that described second driving chip controls separately described second display unit according to described second control signal, to make described pixel cell luminous according to described preset rules; Described first driving chip and described second driving chip control described first display unit according to described 3rd control signal and described second display unit is luminous, to make described pixel cell luminous according to described preset rules.
Further, described LED display also comprises the first path and alternate path, multiple described first driving chip is provided with in described first path, multiple described second driving chip is provided with in described alternate path, wherein, when described first path fault, it is luminous according to described preset rules that described controller controls multiple described second display unit by multiple described second driving chip; When described alternate path fault, it is luminous according to described preset rules that described controller controls multiple described first display unit by multiple described first driving chip.
Further, described first path also comprises: the first signal input part, is connected, for reception control signal and picture signal with multiple described first driving chip with described controller; First signal output part, is connected with multiple described first driving chip, for exporting described picture signal; First power supply signal input end, is connected with multiple described first driving chip, for powering for described first path.
Further, described alternate path also comprises: secondary signal input end, is connected, for reception control signal and picture signal with described controller with described second driving chip; Secondary signal output terminal, is connected with described second driving chip, for exporting described picture signal; Second source signal input part, is connected with described second driving chip, for powering for described alternate path.
Further, described first display unit and described second display unit are the unit of color matching separately, are the unit that two color matching shows to make described pixel cell.
In the utility model embodiment, this LED display comprises pixel cell, and pixel cell comprises the first display unit and the second display unit; Control module, be connected with the second display unit with the first display unit respectively, for controlling the first display unit and/or the luminescence of the second display unit, to make pixel cell luminous according to preset rules, when a display unit fault can not luminous, another one display unit can be adopted luminous; Or, when two display units can luminous, two display units are jointly luminous, thus a display unit can not luminous time, can also ensure that pixel cell can normal luminous, also just avoid certain the caused image of the pixel of LED display certain, and then solve prior art pixel cell and damages the technical matters that the screen picture that causes lacks, reach the technique effect avoiding screen picture to lack.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of LED display according to prior art;
Fig. 2 is the schematic diagram of a pixel cell of LED display according to Fig. 1;
Fig. 3 is the rear view of the LED display according to Fig. 1;
Fig. 4 is the front view of the LED display according to the utility model embodiment;
Fig. 5 is the schematic diagram of a pixel cell of LED display according to Fig. 4;
Fig. 6 is the rear view of the LED display according to Fig. 4;
Fig. 7 is the left view of the LED display shown in Fig. 4;
Fig. 8 is the right view of the LED display shown in Fig. 4;
Fig. 9 is the vertical view of the LED display shown in Fig. 4;
Figure 10 is the upward view of the LED display shown in Fig. 4.
Embodiment
The utility model scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
It should be noted that, term " first ", " second " etc. in instructions of the present utility model and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiment of the present utility model described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
According to the utility model embodiment, provide a kind of embodiment of LED display.Fig. 4 shows the pixel unit array of LED display, and the enlarged drawing of each pixel cell A as shown in Figure 5.
The pixel cell A ' of the prior art shown in pixel cell A and Fig. 2 shown in Fig. 5 compares, and the LED display in the present embodiment has two display units, i.e. the first display unit A1 and the second display unit A2.Two display units adopt identical structure, and each display unit has independent color matching, can be redgreenblues, can also be the proportionings of other colors, differ one to illustrate herein.Because two display units adopt identical color matching, make pixel cell become the unit of two color matching, therefore, these two unit can be luminous separately, also can be simultaneously luminous.When a display unit fault can not luminous, another one display unit can be adopted luminous; Or, when two display units can luminous, two display units are jointly luminous, thus a display unit can not luminous time, can also ensure that pixel cell can normal luminous, also just avoid certain the caused image of the pixel of LED display certain, and then solve prior art pixel cell and damages the technical matters that the screen picture that causes lacks, reach the technique effect avoiding screen picture to lack.
Particularly, can adopt controller to control the luminescence of two display units, two display units control respectively by a path, are controlled the display unit being in two-way by controller.Fig. 6 shows the driving chip of LED display, and driving chip and pixel cell are in the two sides of pcb board respectively.The driving chip of the LED display in the present embodiment is divided into two parts, part a as shown in Figure 6 and part b.Wherein, part a, as the first path, controls the display of the first display unit; Part b, as alternate path, controls the display of the second display unit.The picture signal that part a and part b receives is identical, all by chromacoder, image information is converted to digital signal and exports to part a and part b.
First path comprises multiple first display unit (each pixel cell has first display unit), also comprises the multiple driver element B shown in part a, the first signal input part 11, first signal output part 13 and the first power input 12.Wherein, the array that multiple driver element B is made up of multiple first driving chip, each first driving chip can drive one or more first display unit luminous.Figure 6 illustrates 4 driver element B, it should be noted that, LED display in this embodiment also can arrange driver element according to the mode being different from Fig. 6, the quantity of driver element also can arrange according to the quantity of the first driving chip, herein only in order to illustrate that this LED display comprises driving chip array, and be not used in the number and arrangement mode that limit driving chip.
Alternate path comprises multiple second display unit (each pixel cell has second display unit), also comprise the multiple driver elements shown in part b, secondary signal input end, secondary signal output terminal and second source output terminal, the structure of alternate path is identical with the first path, repeats no more.First signal input part and secondary signal input end can receive digital signal (i.e. picture signal), and the first signal output part and secondary signal output terminal can output image signals.
Wherein, the first driving chip is connected with the first display unit with controller, for driving the first display unit luminous according to control signal; Second driving chip is connected with the second display unit with controller, for driving the second display unit luminous according to control signal.
First signal input part of the first path is connected with multiple first driving chip with controller, for reception control signal and picture signal; First signal output part is connected, for output image signal with multiple first driving chip; First power supply signal input end is connected with multiple first driving chip, for powering for the first path.
The secondary signal input end of alternate path is connected with the second driving chip with controller, for reception control signal and picture signal; Secondary signal output terminal is connected with the second driving chip, for output image signal; Second source signal input part is connected with the second driving chip, for powering for alternate path.
It should be noted that, the control of all controlled device of the first path and alternate path, it is luminous that each path can control corresponding display unit according to the control signal of controller.When the first path fault, it is luminous according to preset rules that controller controls multiple second display unit by multiple second driving chip; When alternate path fault, it is luminous according to preset rules that controller controls multiple first display unit by multiple first driving chip.
Simultaneously, because the power supply of two paths and signal input and output are provided separately, when some paths break down, it is luminous that an other road also can control corresponding display unit, thus ensure that the normal display of LED display, requiring display to seem particularly important under scene that is higher, that ensure normal display.
In this embodiment, because controller controls two paths simultaneously, another one path can be adopted to control pixel cell when a path fault luminous.Simultaneously, when the display unit fault of in a pixel cell, another one display unit also can show, and other display units in the path at the display unit place of breaking down also can normally show, not by the impact of fault display unit.In order to ensure that each display unit the control signal of controller more can carry out luminescence display, the driving chip of display unit is driven all to be connected with controller, and it is luminous to control corresponding display unit according to the control signal of controller, thus solve the technical matters that prior art pixel cell damages the screen picture disappearance caused, reach the technique effect avoiding screen picture to lack.
When LED display display image, brightness shown by each pixel cell is absolutely, namely absolutely Intensity LEDs is adopted according to preset rules luminescence, if adopt a display unit display image in a pixel cell, in order to ensure that this pixel cell sends a hundred per cent of brightness, controlling this display unit and showing absolutely brightness; If adopt two display unit display images in a pixel cell, then control the brightness of each display unit display 50 percent.Under two display units in a pixel cell all do not have out of order situation, adopt two display unit luminescences, the luminosity due to each display unit is less than absolutely, therefore, adds the serviceable life of each display unit.
Fig. 7 is the left view of the LED display shown in Fig. 4, and Fig. 8 is the right view of the LED display shown in Fig. 4, and Fig. 9 is the vertical view of the LED display shown in Fig. 4, and Figure 10 is the upward view of the LED display shown in Fig. 4.
LED display shown in multiple Fig. 4 can be spliced into larger LED display, therefore, the first signal output part in this embodiment is connected with the first signal input part of adjacent LED display, picture signal can be transferred to adjacent LED display, secondary signal input end is connected with the secondary signal input end of adjacent LED display, picture signal can be transferred to adjacent LED display, realize the splicing of multiple LED display.
By above-described embodiment, LED display is made up of a road color matching LED (i.e. the first display unit) and b road color matching LED (i.e. the second display unit); Drive part has a road driving chip (i.e. the first driving chip) and b road driving chip (i.e. the second driving chip) composition; Data input has a circuit-switched data to input (i.e. the first signal input part) and b circuit-switched data input (i.e. secondary signal input end) composition; Data export has a circuit-switched data to export (i.e. the first signal output part) and b circuit-switched data output (i.e. secondary signal output terminal) composition; Power supply input has a road power supply input (i.e. the first power input) and b road power supply input (i.e. second source input end) composition; All devices implement reliable display by multi-layer PCB board interconnect.
The data-signal that two-way is identical inputs through a (b) circuit-switched data, processed by the signal of a (b) road driving chip, a (b) road color matching LED is driven to do relevant display, data-signal through the input of a (b) circuit-switched data, then exports via data the LED display that a (b) road outputs to next splicing by other chips; The power supply of two-way equipressure has the power supply input of a (b) road by power supply input, to a (b) road driving chip, a (b) road color matching LED and other chip power supplies; Single pixel is made up of the LED of two assembly looks, and during normal display, a, b paths of LEDs bears 1/2nd display brightness, and have fault if any any one LED, another LED shows absolutely brightness, and screen does not lack display section, reaches highly reliable object.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a LED display, is characterized in that, comprising:
Pixel cell, comprises the first display unit and the second display unit;
Control module, is connected with described second display unit with described first display unit respectively, for controlling described first display unit and/or described second display unit luminescence, to make described pixel cell luminous according to preset rules.
2. LED display according to claim 1, is characterized in that, described control module comprises:
Controller, for generating control signal;
First driving chip, is connected with described first display unit with described controller, for driving described first display unit luminous according to described control signal;
Second driving chip, is connected with described second display unit with described controller, for driving described second display unit luminous according to described control signal.
3. LED display according to claim 2, is characterized in that, described control signal comprises the first control signal, the second control signal and the 3rd control signal, wherein,
It is luminous that described first driving chip controls separately described first display unit according to described first control signal, to make described pixel cell luminous according to described preset rules;
It is luminous that described second driving chip controls separately described second display unit according to described second control signal, to make described pixel cell luminous according to described preset rules;
Described first driving chip and described second driving chip control described first display unit according to described 3rd control signal and described second display unit is luminous, to make described pixel cell luminous according to described preset rules.
4. LED display according to claim 2, is characterized in that, described LED display also comprises the first path and alternate path, multiple described first driving chip is provided with in described first path, multiple described second driving chip is provided with, wherein in described alternate path
When described first path fault, it is luminous according to described preset rules that described controller controls multiple described second display unit by multiple described second driving chip;
When described alternate path fault, it is luminous according to described preset rules that described controller controls multiple described first display unit by multiple described first driving chip.
5. LED display according to claim 4, is characterized in that, described first path also comprises:
First signal input part, is connected, for reception control signal and picture signal with multiple described first driving chip with described controller;
First signal output part, is connected with multiple described first driving chip, for exporting described picture signal;
First power supply signal input end, is connected with multiple described first driving chip, for powering for described first path.
6. LED display according to claim 4, is characterized in that, described alternate path also comprises:
Secondary signal input end, is connected with described second driving chip with described controller, for reception control signal and picture signal;
Secondary signal output terminal, is connected with described second driving chip, for exporting described picture signal;
Second source signal input part, is connected with described second driving chip, for powering for described alternate path.
7. LED display according to any one of claim 1 to 6, is characterized in that, described first display unit and described second display unit are the unit of color matching separately, is the unit that two color matching shows to make described pixel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878550.3U CN205140426U (en) | 2015-11-05 | 2015-11-05 | Led display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878550.3U CN205140426U (en) | 2015-11-05 | 2015-11-05 | Led display screen |
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| CN205140426U true CN205140426U (en) | 2016-04-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321466A (en) * | 2015-11-05 | 2016-02-10 | 利亚德光电股份有限公司 | Led display screen and display control method thereof |
| CN113744661A (en) * | 2021-09-28 | 2021-12-03 | 深圳利亚德光电有限公司 | Display device |
| CN114446191A (en) * | 2022-02-15 | 2022-05-06 | 珠海华萃科技有限公司 | Novel LED display module and display screen |
-
2015
- 2015-11-05 CN CN201520878550.3U patent/CN205140426U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321466A (en) * | 2015-11-05 | 2016-02-10 | 利亚德光电股份有限公司 | Led display screen and display control method thereof |
| CN105321466B (en) * | 2015-11-05 | 2018-12-28 | 利亚德光电股份有限公司 | LED display and its display control method |
| CN113744661A (en) * | 2021-09-28 | 2021-12-03 | 深圳利亚德光电有限公司 | Display device |
| CN114446191A (en) * | 2022-02-15 | 2022-05-06 | 珠海华萃科技有限公司 | Novel LED display module and display screen |
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