CN105321466B - LED display and its display control method - Google Patents
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- CN105321466B CN105321466B CN201510746901.XA CN201510746901A CN105321466B CN 105321466 B CN105321466 B CN 105321466B CN 201510746901 A CN201510746901 A CN 201510746901A CN 105321466 B CN105321466 B CN 105321466B
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Abstract
The invention discloses a kind of LED display and its display control methods.Wherein, which includes: pixel unit, including the first display unit and the second display unit；Control unit is connected with the first display unit and the second display unit respectively, shines for controlling the first display unit and/or the second display unit, so that pixel unit shines according to preset rules.The present invention solves the technical issues of screen picture missing caused by pixel unit damage.
Description
Technical field
The present invention relates to LED fields, in particular to a kind of LED display and its display control method.
Background technique
Existing LED display is rearranged by multiple LED pixel units, and each LED pixel unit receives letter
Corresponding color is shown after number.Fig. 1 is the main view of the LED display of the prior art, and Fig. 2 is the enlarged drawing of A ' in Fig. 1, is shown
Display unit included in one pixel unit A '.Fig. 3 is the rearview of the LED display of the prior art, and B ' is
One driving chip array, 11 ' be data input pin, and 12 ' be power input, and 13 ' be data output end, drive shown in Fig. 3
The two sides of a pcb board is arranged in dynamic chip and pixel unit shown in FIG. 1, controls LED shown in FIG. 1 by driving chip and shows
The pixel unit of screen shines, so that the image for realizing LED display is shown.
As shown in Figure 1, existing LED display is shone by pixel unit and is shown, if there is some pixel unit
Malfunction or damage, then the pixel unit cannot shine or show again and is abnormal, will lead to the display information on LED display
It loses, so that the image on screen lacks.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of LED display and its display control methods, at least to solve pixel unit damage
The technical issues of screen picture caused by bad lacks.
According to an aspect of an embodiment of the present invention, a kind of LED display is provided, comprising: pixel unit, including first
Display unit and the second display unit；Control unit is connected with first display unit and second display unit respectively
It connects, shines for controlling first display unit and/or second display unit, so that the pixel unit is according to default
Rule shines.
Further, described control unit includes: controller, for generating control signal；First driving chip, and it is described
Controller is connected with first display unit, for driving first display unit to shine according to the control signal；
Second driving chip is connected with the controller and second display unit, for driving institute according to the control signal
The second display unit is stated to shine.
Further, the control signal includes that first control signal, second control signal and third control signal,
In, first driving chip individually controls first display unit according to the first control signal and shines, so that described
Pixel unit shines according to the preset rules；Described in second driving chip is individually controlled according to the second control signal
Second display unit shines, so that the pixel unit shines according to the preset rules；First driving chip and described
Second driving chip controls signal control first display unit according to the third and second display unit shines, with
The pixel unit is set to shine according to the preset rules.
Further, the LED display further includes the first access and alternate path, is provided in first access more
A first driving chip is provided with multiple second driving chips, wherein described first in the alternate path
When path fault, the controller controls multiple second display units according to described by multiple second driving chips
Preset rules shine；In the alternate path failure, the controller is controlled multiple by multiple first driving chips
First display unit shines according to the preset rules.
Further, first access further include: the first signal input part, with the controller and multiple described first
Driving chip is connected, for receiving control signal and picture signal；First signal output end, with multiple first driving cores
Piece is connected, for exporting described image signal；First power supply signal input is connected with multiple first driving chips
It connects, for powering for first access.
Further, the alternate path further include: second signal input terminal, with the controller and second driving
Chip is connected, for receiving control signal and picture signal；Second signal output end is connected with second driving chip
It connects, for exporting described image signal；Second source signal input part is connected with second driving chip, is used for as institute
State alternate path power supply.
Further, first display unit and second display unit are the unit individually matched colors, so that institute
State the unit that pixel unit is double color matching displays.
According to another aspect of an embodiment of the present invention, a kind of display control method of LED display is additionally provided, comprising:
The display screen includes multiple pixel units, and each pixel unit includes the first display unit and the second display unit, institute
State display control method include: detect first display unit and second display unit whether be can luminescence display list
Member；One of them of first display unit and second display unit be can luminescence display unit when, controlling this can
Luminescence display unit shines, so that the pixel unit shines according to preset rules；In first display unit and described
Two display units be all can luminescence display unit when, control is described in first display unit and second display unit
It shines simultaneously, so that the pixel unit shines according to the preset rules.
Further, control this can luminescence display unit shine so that the pixel unit according to preset rules shine packet
Include: described in control can luminescence display unit according to absolutely Intensity LEDs so that pixel unit display is absolutely
Brightness.
Further, control is described shines while first display unit and second display unit, so that
It includes: that control first display unit and second display unit are each that the pixel unit shines according to the preset rules
The brightness for showing half, so that the pixel unit shows absolutely brightness.
In embodiments of the present invention, which includes pixel unit, and pixel unit includes the first display unit and the
Two display units；Control unit is connected with the first display unit and the second display unit respectively, single for controlling the first display
Member and/or the second display unit shine, so that pixel unit shines according to preset rules, cannot send out in a display unit failure
In the case where light, it can be shone using another display unit；Alternatively, in the case where two display units can shine,
Two display units shine jointly, thus when a display unit cannot shine, additionally it is possible to guarantee that pixel unit can be normal
It shines, the certain caused image of pixel for also avoiding LED display is certain, and then solves prior art pixel unit
Caused by damage the technical issues of screen picture missing, the technical effect for avoiding screen picture from lacking is reached.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of LED display according to prior art；
Fig. 2 is the schematic diagram of a pixel unit of LED display according to figure 1；
Fig. 3 is the rearview of LED display according to figure 1；
Fig. 4 is the main view of LED display according to an embodiment of the present invention；
Fig. 5 is the schematic diagram of a pixel unit of LED display according to Fig.4,；
Fig. 6 is the rearview of LED display according to Fig.4,；
Fig. 7 is the left view of LED display shown in Fig. 4；
Fig. 8 is the right view of LED display shown in Fig. 4；
Fig. 9 is the top view of LED display shown in Fig. 4；
Figure 10 is the bottom view of LED display shown in Fig. 4；
Figure 11 is the flow chart of the display control method of LED display according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of LED display is provided.Fig. 4 shows the pixel of LED display
The enlarged drawing of cell array, each pixel unit A is as shown in Figure 5.
LED of the pixel unit A shown in fig. 5 compared with the pixel unit A ' of the prior art shown in Fig. 2, in the present embodiment
There are two display units, i.e. the first display unit A1 and the second display unit A2 for display screen tool.Two display units are using identical
Structure, each display unit has individual color matching, can be redgreenblue, can also be the proportion of other colors, this
Locate different one to illustrate.Since two display units use identical color matching, so that pixel unit becomes the unit of double color matchings,
Therefore, the two units can individually shine, and can also shine simultaneously.In the situation that a display unit failure cannot shine
Under, it can be shone using another display unit；Alternatively, in the case where two display units can shine, two displays
Unit shines jointly, thus when a display unit cannot shine, additionally it is possible to guarantee pixel unit can normal luminous, also
The certain caused image of pixel for avoiding LED display is certain, and then solves the damage of prior art pixel unit and made
At screen picture missing the technical issues of, reached avoid screen picture lack technical effect.
Specifically, shining for two display units can be controlled using controller, two display units pass through one respectively
A access is controlled, and is controlled by controller the display unit in two-way.Fig. 6 shows the driving of LED display
Chip, driving chip and pixel unit are respectively at the two sides of pcb board.The driving chip of LED display in the present embodiment point
For two parts, part a and part b as shown in FIG. 6.Wherein, part a controls the first display unit as the first access
Display；Part b controls the display of the second display unit as alternate path.The picture signal that part a and part b are received is
It is identical, it is all that image information is converted to digital signal by chromacoder to export to part a and part b.
First access includes multiple first display units (each pixel unit has first display unit), further includes
Multiple driving unit B, the first signal input part 11, the first signal output end 13 and the first power input 12 shown in a of part.
Wherein, the array that multiple driving unit B are made of multiple first driving chips, each first driving chip can drive one
A or multiple first display units shine.4 driving unit B are shown in FIG. 6, it should be noted that in the embodiment
LED display can also arrange driving unit in the way of being different from Fig. 6, and the quantity of driving unit can also drive according to first
The quantity arrangement of dynamic chip is not used to limit driving core herein only for illustrating that the LED display includes driving chip array
The number and arrangement mode of piece.
Alternate path includes multiple second display units (each pixel unit has second display unit), further includes
Multiple driving units shown in the b of part, second signal input terminal, second signal output end and second source output end, second is logical
The structure on road is identical as the first access, repeats no more.First signal input part and second signal input terminal can receive number
Signal (i.e. picture signal), the first signal output end and second signal output end can export picture signal.
Wherein, the first driving chip is connected with controller and the first display unit, for according to control signal driving the
One display unit shines；Second driving chip is connected with controller and the second display unit, for according to control signal driving
Second display unit shines.
First signal input part of the first access is connected with controller and multiple first driving chips, for receiving control
Signal and picture signal；First signal output end is connected with multiple first driving chips, for exporting picture signal；First electricity
Source signal input terminal is connected with multiple first driving chips, for powering for the first access.
The second signal input terminal of alternate path is connected with controller and the second driving chip, for receiving control signal
And picture signal；Second signal output end is connected with the second driving chip, for exporting picture signal；Second source signal is defeated
Enter end to be connected with the second driving chip, for powering for alternate path.
It should be noted that the first access and alternate path are by the control of controller, each access can be according to control
The control signal of device controls corresponding display unit and shines.In the first path fault, controller passes through multiple second driving cores
Piece controls multiple second display units and shines according to preset rules；In alternate path failure, controller drives by multiple first
Dynamic multiple first display units of chip controls shine according to preset rules.
Simultaneously as the power supply and signal input and output of two paths are provided separately, when event occurs in some access
When barrier, it in addition also can control corresponding display unit all the way and shine, to ensure that the normal display of LED display, to aobvious
Show that requirement is relatively high, guarantee to be particularly important under the scene normally shown.
It in this embodiment, can be in a path fault using in addition since controller controls two paths simultaneously
One access control pixel unit shines.Meanwhile when a display unit failure in a pixel unit, another is aobvious
The other display unit in access where the display unit for showing that unit can also be shown, and breaking down can also be normal
It has been shown that, is not influenced by fault display unit.In order to ensure each display unit can more controller control signal into
The driving chip of row luminescence display, driving display unit is all connected with controller, and is controlled according to the control signal of controller
Corresponding display unit shines, so that the technology for solving screen picture missing caused by the damage of prior art pixel unit is asked
Topic has reached the technical effect for avoiding screen picture from lacking.
When LED display shows image, brightness shown by each pixel unit is absolutely, according to preset rules
It shines i.e. using absolutely Intensity LEDs, if showing image using a display unit in a pixel unit, is
Guarantee that the pixel unit issues a hundred percent of brightness, controls this display unit and show absolutely brightness；If
Using in a pixel unit two display units show image, then control each display unit show 50 percent it is bright
Degree.Two display units in a pixel unit all without failure in the case where, shone using two display units, due to
The light emission luminance of each display unit is both less than absolutely, therefore, increases the service life of each display unit.
Fig. 7 is the left view of LED display shown in Fig. 4, and Fig. 8 is the right view of LED display shown in Fig. 4, and Fig. 9 is
The top view of LED display shown in Fig. 4, Figure 10 are the bottom views of LED display shown in Fig. 4.
Multiple LED displays shown in Fig. 4 can be spliced into bigger LED display, therefore, first in the embodiment
Signal output end is connected with the first signal input part of adjacent LED display, picture signal can be transferred to adjacent
LED display, second signal input terminal are connected with the second signal input terminal of adjacent LED display, image can be believed
Number it is transferred to adjacent LED display, realizes the splicing of multiple LED displays.
Through the foregoing embodiment, LED is shown by the road a color matching LED (i.e. the first display unit) and the road b color matching LED (i.e. second
Display unit) composition；Drive part has the road a driving chip (i.e. the first driving chip) and the road b driving chip (the i.e. second driving core
Piece) composition；Data input has a circuit-switched data input (i.e. the first signal input part) and the input of b circuit-switched data, and (i.e. second signal inputs
End) composition；Data output has a circuit-switched data output (i.e. the first signal output end) and the output of b circuit-switched data, and (i.e. second signal exports
End) composition；Power input has the road a power input (i.e. the first power input) and the road b power input, and (i.e. second source inputs
End) composition；All devices implement reliable display by the interconnection of multi-layer PCB board route.
The identical data-signal of two-way is inputted through a (b) circuit-switched data, is processed by the signal of the road a (b) driving chip, is driven a
(b) color matching LED light in road does related display, and data-signal is inputted through a (b) circuit-switched data, then exports a via data by other chips
(b) road is output to the LED display of next splicing；The power supply of two-way equipressure has the road a (b) power input by power input, gives a
(b) road driving chip, the road a (b) color matching LED light and other chips are powered；Single pixel is made of the LED light of two groups of color matchings, normally
A, b paths of LEDs undertake half display brightness when display, faulty if any any one LED, and another LED display is absolutely
Brightness, screen do not lack display portion, achievees the purpose that highly reliable.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of the display control method of LED display is provided, which shows
The display control method of screen can control the LED display in embodiment 1, and the LED display in embodiment 1 can also be with
It is controlled using the display control method.It should be noted that step shown in the flowchart of the accompanying drawings can be such as one
It is executed in the computer system of group computer executable instructions, although also, logical order is shown in flow charts,
It in some cases, can be with the steps shown or described are performed in an order that is different from the one herein.
Figure 11 is the flow chart of the display control method of LED display according to an embodiment of the present invention, which includes
Multiple pixel units, each pixel unit include the first display unit and the second display unit, and as shown in figure 11, this method includes
Following steps:
Step S102, detect the first display unit and the second display unit whether be can luminescence display unit.
Step S104, one of them of the first display unit and the second display unit be can luminescence display unit when, control
Make this can luminescence display unit shine so that pixel unit according to preset rules shine.
Step S106, the first display unit and the second display unit be all can luminescence display unit when, control first
It shines while display unit and the second display unit, so that pixel unit shines according to preset rules.
When display unit damage or access damage, some display unit in a pixel unit is it is possible that nothing
The luminous situation of method controls the display list that can be shone when a display unit in two display units can shine
Member shines, and luminous brightness is identical as the brightness shown needed for pixel unit.When two display units can shine, control
It makes two display units all to shine, the brightness that two display units shine jointly is identical as the brightness shown needed for pixel unit.
By the embodiment, there are two display units for each pixel unit setting, even if there is a display unit that can not send out
Light also can use another display unit and shine, to meet the brightness of pixel unit and the requirement of color, avoid aobvious
The loss for showing display information caused by the damage of unit solves screen picture caused by the damage of prior art pixel unit
The technical issues of missing, has reached the technical effect for avoiding screen picture from lacking.
Optionally, control this can luminescence display unit shine so that pixel unit according to preset rules shine include: control
Can luminescence display unit according to absolutely Intensity LEDs so that pixel unit shows absolutely brightness.
Optionally, control shines while the first display unit and the second display unit, so that pixel unit is according to pre-
If it includes: the brightness for controlling the first display unit and the second display unit and respectively showing half that rule, which shines, so that pixel list
Member display absolutely brightness.
When LED display shows image, brightness shown by each pixel unit is absolutely, according to preset rules
It shines i.e. using absolutely Intensity LEDs, if showing image using a display unit in a pixel unit, is
Guarantee that the pixel unit issues a hundred percent of brightness, controls this display unit and show absolutely brightness；If
Using in a pixel unit two display units show image, then control each display unit show 50 percent it is bright
Degree.Two display units in a pixel unit all without failure in the case where, shone using two display units, due to
The light emission luminance of each display unit is both less than absolutely, therefore, increases the service life of each display unit.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of LED display characterized by comprising
Pixel unit, including the first display unit and the second display unit；
Control unit is connected, for controlling described first respectively with first display unit and second display unit
Display unit and/or second display unit shine, so that the pixel unit shines according to preset rules；
Wherein, described control unit includes: controller, for generating control signal；First driving chip, with the controller and
First display unit is connected, for driving first display unit to shine according to the control signal；Second driving
Chip is connected with the controller and second display unit, for aobvious according to control signal driving described second
Show that unit shines；
The control signal includes first control signal, second control signal and third control signal, wherein first driving
Chip individually controls first display unit according to the first control signal and shines, so that the pixel unit is according to described
Preset rules shine；Second driving chip individually controls second display unit according to the second control signal and sends out
Light, so that the pixel unit shines according to the preset rules；First driving chip and the second driving chip root
First display unit is controlled according to third control signal and second display unit shines, so that the pixel unit
It shines according to the preset rules, wherein in first driving chip and second driving chip according to the third control
In the case that signal control first display unit processed and second display unit shine, first display unit and institute
The brightness that the second display unit shows 50 percent is stated, so that the pixel unit shows absolutely brightness；
Wherein, the LED display further includes the first access and alternate path, and multiple described are provided in first access
One driving chip is provided with multiple second driving chips, wherein in first path fault in the alternate path
When, the controller controls multiple second display units according to the preset rules by multiple second driving chips
It shines；In the alternate path failure, the controller passes through multiple first driving chip controls multiple described first
Display unit shines according to the preset rules.
2. LED display according to claim 1, which is characterized in that first access further include:
First signal input part is connected with the controller and multiple first driving chips, for receiving control signal
And picture signal；
First signal output end is connected, for exporting described image signal with multiple first driving chips；
First power supply signal input is connected with multiple first driving chips, for powering for first access.
3. LED display according to claim 1, which is characterized in that the alternate path further include:
Second signal input terminal is connected with the controller and second driving chip, for receiving control signal and figure
As signal；
Second signal output end is connected, for exporting described image signal with second driving chip；
Second source signal input part is connected with second driving chip, for powering for the alternate path.
4. LED display according to any one of claim 1 to 3, which is characterized in that first display unit and institute
Stating the second display unit is the unit individually matched colors, so that the pixel unit is the unit of double color matching displays.
5. a kind of display control method of LED display, which is characterized in that the display screen includes multiple pixel units, each
The pixel unit includes the first display unit and the second display unit, and the display control method includes:
Detect first display unit and second display unit whether be can luminescence display unit；
One of them of first display unit and second display unit be can luminescence display unit when, controlling this can
Luminescence display unit shines, so that the pixel unit shines according to preset rules；
First display unit and second display unit be all can luminescence display unit when, control is described described the
It shines while one display unit and second display unit, so that the pixel unit shines according to the preset rules；
Wherein, one of them of first display unit and second display unit be can luminescence display unit when, control
Make this can luminescence display unit shine so that the pixel unit according to preset rules shine include: generate control signal, according to
The control signal drives first display unit to shine by the first driving chip, and is passed through according to the control signal
Second driving chip drives second display unit to shine；
Wherein, control is described shines while first display unit and second display unit, so that the pixel
It includes: that control first display unit and second display unit respectively show two points that unit shines according to the preset rules
One of brightness so that the pixel unit shows absolutely brightness；
Wherein, the display screen further includes the first access and alternate path, and multiple described first are provided in first access
Driving chip is provided with multiple second driving chips, wherein in first path fault in the alternate path
When, controller controls multiple second display units by multiple second driving chips and sends out according to the preset rules
Light；In the alternate path failure, the controller controls multiple described first by multiple first driving chips and shows
Show that unit shines according to the preset rules.
6. display control method according to claim 5, which is characterized in that control this can luminescence display unit shine, with
Make the pixel unit according to preset rules shine include:
Described in control can luminescence display unit according to absolutely Intensity LEDs so that pixel unit display is absolutely
Brightness.
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| CN102252226A (en) * | 2011-04-14 | 2011-11-23 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) component and LED light string adopting same |
| US20120274212A1 (en) * | 2011-04-14 | 2012-11-01 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Led module and led light string using the same |
| CN103471027A (en) * | 2013-09-25 | 2013-12-25 | 黄诵卫 | Adjustable-color-temperature LED (Light Emitting Diode) light source module |
| CN103531152A (en) * | 2013-11-04 | 2014-01-22 | 广东威创视讯科技股份有限公司 | Display control method and device |
| CN205140426U (en) * | 2015-11-05 | 2016-04-06 | 利亚德光电股份有限公司 | Led display screen |
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|---|---|
| CN105321466A (en) | 2016-02-10 |
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