CN103531152A - Display control method and device - Google Patents

Display control method and device Download PDF

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Publication number
CN103531152A
CN103531152A CN201310539540.2A CN201310539540A CN103531152A CN 103531152 A CN103531152 A CN 103531152A CN 201310539540 A CN201310539540 A CN 201310539540A CN 103531152 A CN103531152 A CN 103531152A
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pixel
primary sub
spare
sub
default
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CN103531152B (en
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彭晓林
潘靖
孙婷
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Vtron Group Co Ltd
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Vtron Technologies Ltd
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Abstract

The embodiment of the invention discloses a display control method and a display control device. The method of the embodiment of the invention comprises the following steps: sensing luminous conditions of each main sub-pixel in a pixel unit; and starting a preset standby sub-pixel which corresponds to main sub-pixel by utilizing a driving circuit when a certain main sub-pixel fails. The embodiment of the invention also provides a display control device. According to the embodiment of the invention, the reliability of the display system can be improved, and the condition that a traditional display screen is bad in display effect is improved.

Description

A kind of display control method and device
Technical field
The embodiment of the present invention relates to display technique field, relates in particular to a kind of display control method and device.
Background technology
Existing display screen, light emitting diode (Light Emitting Diode for example, LED) display screen, a pixel cell of Full color LED display screen is by a redness (Red) sub-pixel, green (Green) sub-pixel and a blueness (Blue) arrangement of subpixels form, and 3 sub-pixels in each pixel cell are respectively the LED of 3 different colours; In addition, also has Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display screen, in its each pixel cell, be also by a red sub-pixel, green sub-pixels and a blue subpixels form, and 3 sub-pixels in each pixel cell are respectively the luminous point of 3 different colours that luminous organic material sends.
Under the restriction of the state of the art, display screen occurs that bad point is unavoidable defect.LED display for example, the probability that general bad point occurs is 20ppm, in each 1,000,000 LEDs, occurs 20 bad lamps.Concerning a little bigger distance or low-density LED display, this probability is not clearly on whole demonstration impact, and for example distance is 5mm, and every square metre of display screen has 1 bad point, bad point negligible amounts, and the mode that can change lamp pearl by craft is repaired.But when LED display point is apart from reaching 2mm or 2mm when following, the bad point quantity of LED display increases considerably along with the raising of picture element density.For example, when distance is 2mm, bad point is 5 every square metre; When a distance is less than 2mm, the number of every square metre of bad point will be greater than 5, now, because bad point quantity is large, repair comparatively difficulty.And will cause after bad point appearring in display screen, highly dense display screen reliability is low, display effect is not good.
Summary of the invention
The embodiment of the present invention provides a kind of display control method and device, can improve the reliability of display system, improves the not good situation of traditional display screen display effect.
The display control method that the embodiment of the present invention provides, comprising: the luminous situation of each primary sub-pixel in detecting pixel cell; When detecting described primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with described primary sub-pixel.
The display control unit that the embodiment of the present invention provides, comprising: detecting unit, for detecting the luminous situation of each primary sub-pixel in pixel cell; Processing unit, when detecting described primary sub-pixel while breaking down, utilizes driving circuit to start the default spare pixel corresponding with described primary sub-pixel.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
In the embodiment of the present invention, by the luminous situation of each primary sub-pixel in detecting pixel cell, when detecting a certain primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with primary sub-pixel.In the embodiment of the present invention, in pixel cell, each primary sub-pixel is provided with corresponding spare pixel, when a certain primary sub-pixel breaks down, directly starts corresponding with it spare pixel, guarantee the display effect of display screen integral body, improved the reliability of display system.
Accompanying drawing explanation
Fig. 1 is embodiment schematic diagram of display control method in the embodiment of the present invention;
Fig. 2 is another embodiment schematic diagram of display control method in the embodiment of the present invention;
Fig. 3 is embodiment schematic diagram of display control unit in the embodiment of the present invention;
Fig. 4 is embodiment schematic diagram of type of drive of display system in the embodiment of the present invention;
Fig. 5 is another embodiment schematic diagram of type of drive of display system in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of display control method and device, can improve the reliability of display system, improves the not good problem of traditional display screen display effect.
Refer to Fig. 1, in the embodiment of the present invention, embodiment of display control method comprises:
101, the luminous situation of each primary sub-pixel in detecting pixel cell;
Existing Full color LED display screen or OLED display screen, only have a redness (Red) sub-pixel in each pixel cell, green (Green) sub-pixel and a blueness (Blue) sub-pixel.For example, when a certain sub-pixel (R sub-pixel) breaks down, on screen, correspondence position just there will be a bad point.Therefore, in the present embodiment, can be in advance for each sub-pixel arranges spare pixel, herein, original sub-pixel in each pixel cell is called to primary sub-pixel, the standby sub-pixel arranging is in addition called spare pixel, and each primary sub-pixel is all provided with corresponding spare pixel, and sub-pixel herein can be LED or organic material luminous point.
Display control unit can detecting real-time pixel cell in the luminous situation of each primary sub-pixel.
102,, when detecting primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with primary sub-pixel.
When display control unit detects a certain primary sub-pixel, for example, when the primary sub-pixel of R breaks down, start the spare pixel corresponding with the primary sub-pixel of R, in the present embodiment, enable standby R sub-pixel.
In the present embodiment, by the luminous situation of each primary sub-pixel in detecting pixel cell, when detecting a certain primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with primary sub-pixel.In the present embodiment, in pixel cell, each primary sub-pixel is provided with corresponding spare pixel, when a certain primary sub-pixel breaks down, directly starts corresponding with it spare pixel, guarantee the display effect of display screen integral body, improved the reliability of display system.
For the ease of understanding, with a specific embodiment, display control method of the present invention is described below, refer to Fig. 2, in the embodiment of the present invention, another embodiment of display control method comprises:
201, the luminous situation of each primary sub-pixel in detecting pixel cell;
In the present embodiment, can be in advance for original each sub-pixel in pixel cell arranges standby sub-pixel, by original sub-pixel in each pixel cell, R sub-pixel for example, G sub-pixel and B sub-pixel are called primary sub-pixel, the standby sub-pixel arranging is in addition called spare pixel, and each primary sub-pixel is provided with corresponding spare pixel.
Display control unit can detecting real-time pixel cell in the luminous situation of each primary sub-pixel.
202,, when detecting primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with primary sub-pixel, or from a plurality of default spare pixels, select one and start.
In the present embodiment, can be the default one or more spare pixels of each primary sub-pixel in pixel cell.Default method is for example: directly in pixel cell, arrange in addition several R, G, B sub-pixel, or the sub-pixel of a plurality of same types of arranging in pixel cell, R sub-pixel for example, then 1/3 R sub-pixel is coated with and spreads red fluorescence powder, 1/3 R sub-pixel is coated with and spreads green emitting phosphor, forms the sub-pixel of R, G, B three types by color conversion.
If each primary sub-pixel has only been preset a spare pixel,, when primary sub-pixel breaks down, directly start corresponding spare pixel.
If every kind of primary sub-pixel has been preset a plurality of spare pixels,, when a certain primary sub-pixel breaks down, can from a plurality of spare pixels, choose according to predetermined order one and startup, or in a plurality of spare pixels, choose at random one and startup.
Each spare pixel is provided with independent switchable driving circuit, for example specifically start the mode of spare pixel: utilize the driving chip of pixel cell outside to form driving circuit startup spare pixel, or utilize thin film field-effect pipe (Thin Film Transistor, TFT) array forms driving circuit startup spare pixel, or utilize the built-in integrated circuit of pixel cell (Integrated Circuit, IC) chip to form driving circuit and start standby control chip.
It should be noted that, when detecting after primary sub-pixel breaks down, can be directly using fault-signal as trigger pip, trigger driving circuit and start the default spare pixel corresponding with primary sub-pixel, also the fault-signal detecting can be reported to user, by user, be switched to corresponding driving circuit and start the default spare pixel corresponding with primary sub-pixel.
In the present embodiment, by the operation conditions of each primary sub-pixel in detecting pixel cell, when detecting a certain primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with primary sub-pixel.In the present embodiment, in pixel cell, each primary sub-pixel is provided with corresponding spare pixel, when a certain primary sub-pixel breaks down, directly starts corresponding with it spare pixel, guarantee the display effect of display screen integral body, improved the reliability of display system.
Below the display control unit in the embodiment of the present invention is described, refers to Fig. 3, the embodiment of display control unit in the embodiment of the present invention comprises:
Detecting unit 301, for detecting the luminous situation of each primary sub-pixel in pixel cell;
Processing unit 302, for when detecting primary sub-pixel while breaking down, utilizes driving circuit to start the default spare pixel corresponding with primary sub-pixel.
For ease of understanding, with an application scenarios, the interactive mode between each unit of the display control unit in the present embodiment is described below:
Existing Full color LED display screen or OLED display screen, only have a R sub-pixel in each pixel cell, a G sub-pixel and a B sub-pixel.For example, when a certain sub-pixel (R sub-pixel) breaks down, on screen, correspondence position just there will be a bad point.Therefore, in the present embodiment, processing unit 302 can be in advance for each sub-pixel arranges spare pixel, herein, original sub-pixel in each pixel cell is called to primary sub-pixel, the standby sub-pixel arranging is in addition called spare pixel, and each primary sub-pixel is provided with corresponding spare pixel.Detecting unit 301 can detecting real-time pixel cell in the luminous situation of each primary sub-pixel.
When detecting unit 301 detects primary sub-pixel while breaking down, processing unit 302 utilizes driving circuit to start the default spare pixel corresponding with primary sub-pixel, or from a plurality of default spare pixels, selects one and start.
In the present embodiment, processing unit 302 can be the default one or more spare pixels of each the primary sub-pixel in pixel cell in advance.As shown in Figure 4, be provided with 6 R sub-pixels in a pixel cell, wherein, a R sub-pixel is primary sub-pixel, and other 5 is spare pixel, in addition also for G sub-pixel and B sub-pixel are provided with respectively 5 corresponding spare pixels.
Default method is for example: directly in pixel cell, arrange in addition several R, G, B sub-pixel, or the sub-pixel of a plurality of same types of arranging in pixel cell, R sub-pixel for example, then 1/3 R sub-pixel is coated with and spreads red fluorescence powder, 1/3 R sub-pixel is coated with and spreads green emitting phosphor, forms the sub-pixel of R, G, B three types by color conversion.
If each primary sub-pixel is a default spare pixel only, at detecting unit 301, detect primary sub-pixel while breaking down, processing unit 302 directly starts corresponding spare pixel.
If every kind of primary sub-pixel has been preset a plurality of spare pixels, at detecting unit 301, detect a certain primary sub-pixel while breaking down, processing unit 302 can be chosen according to predetermined order one and startup from a plurality of spare pixels, or in a plurality of spare pixels, chooses arbitrarily at random one and startup.
Each spare pixel is provided with independent switchable driving circuit, the concrete mode that processing unit 302 starts spare pixels is for example: utilize the driving chip of pixel cell outside to form driving circuit and start spare pixel, concrete driving circuit can be as shown in Figure 4; Or utilize thin film field-effect pipe (Thin Film Transistor, TFT) array to form driving circuit and start spare pixel, concrete driving circuit can be as shown in Figure 5; Or utilize the built-in IC chip of pixel cell to form driving circuit and start standby control chip.
It should be noted that, when detecting unit 301 detects after primary sub-pixel breaks down, processing unit 302 can be directly using fault-signal as trigger pip, trigger driving circuit and start the default spare pixel corresponding with primary sub-pixel, also the fault-signal detecting can be reported to user, by user, be switched to corresponding driving circuit, the driving circuit that processing unit 302 switches according to user starts the default spare pixel corresponding with primary sub-pixel.
In the present embodiment, the operation conditions of each primary sub-pixel in detecting unit detecting pixel cell, when detecting unit detects a certain primary sub-pixel while breaking down, processing unit utilizes driving circuit to start the default spare pixel corresponding with primary sub-pixel.In the present embodiment, in pixel cell, each primary sub-pixel is provided with corresponding spare pixel, and when a certain primary sub-pixel breaks down, processing unit can directly start corresponding with it spare pixel, guarantee the display effect of display screen integral body, improved the reliability of display system.
It should be noted that, device embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.In addition, in device embodiment accompanying drawing provided by the invention, the annexation between unit represents to have communication connection between them, specifically can be implemented as one or more communication bus or signal wire.Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, and can certainly comprise that special IC, dedicated cpu, private memory, special-purpose components and parts etc. realize by specialized hardware.Generally, all functions being completed by computer program can realize with corresponding hardware at an easy rate, and the particular hardware structure that is used for realizing same function can be also diversified, such as mimic channel, digital circuit or special circuit etc.But software program realization is better embodiment under more susceptible for the purpose of the present invention condition.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computing machine, USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, service end, or the network equipment etc.) method described in each embodiment of execution the present invention.
A kind of display control method and the device that above the embodiment of the present invention are provided are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, therefore, this description should not be construed as limitation of the present invention.

Claims (8)

1. a display control method, is characterized in that, comprising:
The luminous situation of each primary sub-pixel in detecting pixel cell;
When detecting described primary sub-pixel while breaking down, utilize driving circuit to start the default spare pixel corresponding with described primary sub-pixel.
2. the method for claim 1, it is characterized in that, described driving circuit consists of the driving chip of described pixel cell outside, or consists of the Thin Film Transistor (TFT) tft array of described pixel cell inside, or consists of the integrated circuit (IC) chip of described pixel cell inside.
3. the method for claim 1, is characterized in that, the described default spare pixel corresponding with described primary sub-pixel has one or more.
4. method as claimed in claim 3, the described default spare pixel corresponding with described primary sub-pixel has when a plurality of, and the described method of utilizing driving circuit to start the default spare pixel corresponding with described primary sub-pixel is specially:
From the default a plurality of spare pixels corresponding with described primary sub-pixel, choose one at random, or from the default a plurality of spare pixels corresponding with described primary sub-pixel, choose one according to predetermined order.
5. a display control unit, is characterized in that, comprising:
Detecting unit, for detecting the luminous situation of each primary sub-pixel in pixel cell;
Processing unit, when detecting described primary sub-pixel while breaking down, utilizes driving circuit to start the default spare pixel corresponding with described primary sub-pixel.
6. device as claimed in claim 5, is characterized in that, described driving circuit consists of the driving chip of described pixel cell outside, or consists of Thin Film Transistor (TFT) tft array, or consists of the integrated circuit (IC) chip of described pixel cell inside.
7. device as claimed in claim 5, is characterized in that, the described default spare pixel corresponding with described primary sub-pixel has one or more.
8. device as claimed in claim 7, it is characterized in that, the described default spare pixel corresponding with described primary sub-pixel has when a plurality of, and the method that described processing unit utilizes driving circuit to start the default spare pixel corresponding with described primary sub-pixel is specially:
Described processing unit is chosen one at random from default a plurality of spare pixels corresponding with described primary sub-pixel, or described processing unit is chosen one according to predetermined order from default a plurality of spare pixels corresponding with described primary sub-pixel.
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