CN112951158A - Display driving method, display driving device and display device - Google Patents
Display driving method, display driving device and display device Download PDFInfo
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
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Abstract
The embodiment of the application discloses a display driving method, a display driving device and a display device. In one embodiment, the display driving method includes: acquiring resistance values of a plurality of data lines connecting the driving chip and the display panel; and delaying the charging of the storage capacitor of the pixel through the data line according to the difference value between the resistance values of the data lines, so that the charging time of the storage capacitor of the pixel through the data lines is approximate. According to the embodiment, the storage capacitors of the pixels are charged through the data lines with different resistance values to be delayed, so that the charging time of the storage capacitors of the pixels is close to that of the storage capacitors of the pixels, the uniformity of a display picture is ensured, and the abnormity of the display picture is avoided.
Description
Technical Field
The present application relates to the field of display technology. And more particularly, to a display driving method, a display driving apparatus, and a display apparatus.
Background
An organic light-Emitting Diode (OLED) display device has the advantages of being light, thin, high in brightness, low in power consumption, fast in response, high in definition, good in flexibility, high in light-Emitting efficiency, capable of meeting new requirements of consumers for display technologies, and the like, and becomes a development trend in the future.
In the OLED display device, a display panel (panel) is connected to a Driver IC (Driver IC) through a data line (source) to receive a data signal. At present, the problem of uneven display pictures caused by different lengths of data lines cannot be well solved.
Disclosure of Invention
An object of the present application is to provide a display driving method, a display driving apparatus, and a display apparatus, so as to solve at least one of the problems in the prior art.
In order to achieve the purpose, the following technical scheme is adopted in the application:
a first aspect of the present application provides a display driving method, including:
acquiring resistance values of a plurality of data lines connecting the driving chip and the display panel;
and delaying the charging of the storage capacitor of the pixel through the data line according to the difference value between the resistance values of the data lines, so that the charging time of the storage capacitor of the pixel through the data lines is approximate.
According to the display driving method provided by the first aspect of the application, the storage capacitors of the pixels are charged through the data lines with different resistance values to be delayed, so that the charging time of the storage capacitors of the pixels is close to that of the storage capacitors of the pixels, the uniformity of a display picture is ensured, and the abnormity of the display picture is avoided.
In one possible implementation, the display driving method further includes: and compensating the charging voltage for charging the storage capacitor of the pixel through each data line according to the maximum resistance value in the resistance values of the data lines.
According to the implementation mode, the charging voltage for charging the storage capacitor of each pixel is compensated, so that the problem that the whole display picture is dark due to insufficient charging voltage can be solved, and the display effect can be improved.
In one possible implementation manner, the delaying charging of the storage capacitor of the pixel through the data line according to the difference between the resistance values of the data lines includes: and according to the difference value between the resistance value of each data line and the maximum resistance value in the resistance values of the data lines, delaying the charging of the storage capacitor of the pixel through the data line.
According to the implementation mode, the storage capacitor of the pixel corresponding to each data line is charged with time delay through the resistance difference value of the data line with the maximum resistance value in each data line, so that the time delay time for charging the storage capacitor of the pixel by the data lines with different resistance values is calculated accurately and efficiently.
In one possible implementation manner, the delaying charging of the storage capacitor of the pixel through the data line according to the difference between the resistance values of the data lines includes: dividing a plurality of adjacent data lines into a data line group, and delaying the charging of the storage capacitor of the pixel through the data lines in the data line group according to the difference value between the average value of the resistance values of the data lines included in the data line group and the maximum resistance value in the resistance values of the data lines.
According to the implementation mode, the data lines needing time delay are grouped, time delay of unified time length is carried out on the data lines in the group, the complexity of calculating the time delay length and carrying out time delay control can be simplified, and the calculation and control efficiency is improved.
In one possible implementation manner, the delaying charging of the storage capacitor of the pixel through the data line according to the difference between the resistance values of the data lines includes: and according to the difference value between the resistance values of the data lines, the storage capacitor of the pixel is charged through the data line by using the RC delay circuit for delaying.
The implementation mode utilizes the RC delay circuit to realize time delay, and has the advantages of simple structure, high time delay precision, convenience in adjustment of time delay and the like.
In one possible implementation manner, the delaying, by using an RC delay circuit, charging a storage capacitor of a pixel through a data line according to a difference between resistance values of the data lines includes: and according to the difference value between the resistance values of the data lines, the RC delay circuit with the adjustable resistance value is used for delaying the charging of the storage capacitor of the pixel through the data line.
In the implementation mode, the time delay is realized by using the RC time delay circuit with the adjustable resistance value, so that the time delay duration can be accurately, efficiently and conveniently adjusted to adapt to different data line resistance value distribution conditions, and the hardware implementation of the display driving method provided by the invention is suitable for display panels of different models.
A second aspect of the present application provides a display driving apparatus, which includes a driving chip, an obtaining module, and a delay module;
the acquisition module is used for acquiring resistance values of a plurality of data lines connecting the driving chip and the display panel;
and the time delay module is used for delaying the charging of the storage capacitor of the pixel through the data line according to the difference value between the resistance values of the data lines, so that the charging time for charging the storage capacitor of the pixel through the data lines is approximate.
The display driving device provided by the second aspect of the application delays the charging of the storage capacitors of the pixels by the data lines with different resistance values through the delay module, so that the charging time of the storage capacitors of the pixels is close to that of the storage capacitors of the pixels, the uniformity of a display image is ensured, and the abnormity of the display image is avoided.
In a possible implementation manner, the driving chip is configured to compensate a charging voltage for charging a storage capacitor of a pixel through each data line according to a maximum resistance value among resistance values of the data lines.
According to the implementation mode, the charging voltage for charging the storage capacitor of each pixel is compensated, so that the problem that the whole display picture is dark due to insufficient charging voltage can be solved, and the display effect can be improved.
In one possible implementation, the delay module includes an RC delay circuit.
The implementation mode utilizes the RC delay circuit to realize time delay, and has the advantages of simple structure, high time delay precision, convenience in adjustment of time delay and the like.
In a possible implementation manner, the RC delay circuit is an RC delay circuit with an adjustable resistance value.
According to the implementation mode, the time delay is realized by using the RC time delay circuit with the adjustable resistance value, and the time delay can be accurately, efficiently and conveniently adjusted so as to adapt to the distribution situation of the resistance values of different data lines, and therefore, the display panel is applicable to display panels of different models.
A third aspect of the present application provides a display device including a display panel and the display driving device provided in the second aspect of the present application.
The beneficial effect of this application is as follows:
according to the technical scheme, the storage capacitors of the pixels are charged through the data lines with different resistance values to be delayed, so that the charging time of the storage capacitors of the pixels is close to the charging time of the storage capacitors of the pixels, the uniformity of a display picture is guaranteed, and the abnormity of the display picture is avoided.
Drawings
The following describes embodiments of the present application in further detail with reference to the accompanying drawings.
Fig. 1 is a diagram showing a connection relationship between a driver chip and a display panel in a display device.
Fig. 2 shows a charging graph of a storage capacitor of a pixel in the prior art.
Fig. 3 shows a flowchart of a display driving method provided in an embodiment of the present application.
Fig. 4 shows a charging curve diagram of a storage capacitor of a pixel subjected to charging delay provided by an embodiment of the application.
Fig. 5 shows a circuit diagram of an RC delay circuit with an adjustable resistance value.
Detailed Description
In order to more clearly explain the present application, the present application is further described below with reference to the embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not intended to limit the scope of the present application.
An AMOLED (Active Matrix/Organic Light Emitting Diode) is an Active Matrix Organic Light Emitting Diode panel. Compared with the traditional liquid crystal panel, the AMOLED has the characteristics of high reaction speed, high contrast, wide viewing angle and the like.
As shown in fig. 1Fig. 1 shows a connection relationship diagram between a driving chip and a display panel in the AMOLED display device. The display device comprises a driving chip and a display panel, wherein the driving chip is connected with the display panel through a plurality of data lines, including the leftmost data line S in figure 1sData line S in the middlemAnd the data line S positioned at the rightmost sideeAnd a data line therebetween.
The display panel includes a plurality of pixels arranged in an array, a scan line (in fig. 1, a horizontal signal line connected to each pixel in the display panel) for transmitting a scan signal to each pixel, and a data line (in fig. 1, a vertical signal line connected to each pixel in the display panel) for transmitting a data signal to each pixel.
The data lines connecting the driving chip and the display panel and the data lines in the display panel are made of the same material and are used for transmitting data signals sent by the driving chip, so that the data lines can be named as data lines. To avoid confusion, it is stated herein that the data lines appearing below represent only the data lines for connecting the driving chip and the display panel, i.e., the data lines between the driving chip and the display panel, or the data lines outside the display panel.
The driving chip is usually disposed at a middle line position near an upper edge or a lower edge of the display device, as shown in fig. 1, the driving chip is disposed at the middle line position near the upper edge of the display device, and each data line is connected to the display panel, respectively, because a width of a display area of the display panel is much larger than a width of the driving chip, lengths of the data lines are different, for example, a data line S located at a leftmost side in fig. 1sAnd a data line S in the middlemThe lengths of the data lines are different, and the lengths of the data lines are positively correlated with the resistance values of the data lines, so that the charging time of storage capacitors of pixels connected with different data lines is inconsistent, and the display picture is not uniform.
It should be noted that the driving chip may be disposed at other positions, for example, a position near the upper left corner of the display device, rather than at a center line position near the upper edge of the display device, but the length of the data line is not uniform regardless of the position of the driving chip at any position of the display device.
In one specific example, the display panel displays a pure color picture, and the charging voltage for the storage capacitor of each pixel on the display panel is the same. As shown in FIG. 2, FIG. 2 shows the data line SsStorage capacitor of connected pixel and data line SmA charging voltage curve of the storage capacitor of the connected pixel, wherein the data line S is givensThe ramp-up ending time of the charging voltage when the storage capacitor of the connected pixel is charged is TsThe charging time is T-change-Ss(ii) a And data line SmThe ramp-up ending time of the charging voltage when the storage capacitor of the connected pixel is charged is TmThe charging time is T-change-Sm. Wherein, T-change-SmIs significantly greater than T-change-SsI.e. and the data line SmThe charging time of the storage capacitor of the connected pixel is longer than that of the data line SsThe charging time of the storage capacitor of the connected pixel is different from that of the storage capacitor of the pixel connected to the data line having a different resistance value. For example, when the set charging voltage of the storage capacitor is 3V: and data line SmThe storage capacitor of the connected pixel is charged to 2.99V after long time; and the data line SsThe storage capacitor of the connected pixel has short charging time, and the storage capacitor of the pixel can only be charged to 2.80V, which causes the brightness of the two pixels to be different, thereby causing the display picture to be uneven.
In this embodiment, the storage capacitor of the pixel starts to be charged when the charging voltage reaches the voltage peak (i.e., when the charging voltage is ramped up). Continuing with the previous example, in fig. 2, the charging of the storage capacitors of two pixels is started after the charging voltage reaches the voltage peak of 3V.
It should be noted that the initial time for charging the storage capacitor of the pixel is actually when the charging voltage approaches the peak of the charging voltage (for example, when the charging voltage climbs to about eighty percent of the set charging voltage), for example, when the set charging voltage of the pixel is 3V, the storage capacitor of the pixel starts to be charged when the charging voltage reaches 3V × 0.8 — 2.4V. For convenience of understanding and explanation, the present embodiment is described in terms of starting charging when the charging voltage of the storage capacitor of the pixel reaches the voltage peak.
The problem of the display unevenness of the display screen also arises when the set charging voltages for charging the storage capacitors of the pixels by the respective data lines are different. For example, the charging voltage of the storage capacitor of the pixel connected to the leftmost data line (i.e., the data line having the largest resistance value) is 3V, the storage capacitor is charged only to 2.80V with a short time, and the difference from the set charging voltage is large; the storage capacitor of the pixel connected to the intermediate data line (i.e., the data line having the smallest resistance) is charged with 2V, and the storage capacitor is charged for a long time to 1.99V. This also causes a display failure, which may be referred to as display screen unevenness.
In order to solve the above problems, there is a technical solution in the prior art, which is based on the principle that a compensation resistor is respectively connected in series to the output end of each data line in the driving chip, so that the resistance values of the data lines of the driving chip connected to the display panel are close to each other, but there are the following problems: on one hand, the output end of the data line in the driving chip is required to be connected with a compensation resistor in series, so that the influences on the size and the like of the driving chip are large. On the other hand, the resistance value of the compensation resistor connected in series in the driving chip is fixed and not adjustable, so that the display panel carried by the driving chip must meet the design of the compensation resistor of the driving chip, and the use of the driving chip and the display panel is limited and has no universality.
Therefore, the inventor proposes the present application, and an embodiment of the present application provides a display driving method, as shown in fig. 4, including the steps of:
and S10, acquiring resistance values of a plurality of data lines connecting the driving chip and the display panel.
In one specific example, the resistance value of the data line may be obtained by directly querying a data line configuration distribution map or a data line resistance distribution parameter provided by a manufacturer, or may be obtained by measuring the resistance value of each data line.
And S20, according to the difference value between the resistance values of the data lines, delaying the charging of the storage capacitor of the pixel through the data lines, so that the charging time of the storage capacitor of the pixel through the data lines is approximate.
In one specific example, the AND data line SmThe storage capacitor of the connected pixel is charged for time delay, and the sum and the data line S are connectedsThe end time of the ramp when the storage capacitor of the connected pixel is charged is made to approach, i.e., to be close to the data line SmCharging voltage of storage capacitor of connected pixel and data line SsThe charging voltage of the storage capacitors of the connected pixels reaches the voltage peak at the closer moment, so that the charging time of the storage capacitors of the two pixels is close, and the uniformity of a display picture can be improved. Preferably, as shown in fig. 4, the data line S may be connected by a pairmThe storage capacitor of the connected pixel is charged for time delay, and the sum and the data line S are connectedSThe end time of the hill climbing when the storage capacitance of the connected pixel is charged is the same.
It should be noted that, although the uniformity of the display screen can be improved by delaying the charging of the storage capacitor of the pixel by the data line with a small resistance value so that the charging time of the storage capacitor of the pixel by the data line with a different resistance value is close, the overall brightness of the display screen is still dark because the charging time is not guaranteed. For example, in a pure color display screen, the charging voltage is set to 3V, since the data line S is connected to the charge-discharge capacitormThe charging of the storage capacitor of the connected pixel is delayed although its sum is delayed with the data line SSThe storage capacitor of the connected pixel is charged approximately for a long time, but the storage capacitor of the pixel can be charged to only 2.80V. Thus, in some embodiments, the display driving method provided by this embodiment further includes: the charging voltage for charging the storage capacitor of the pixel through each data line is compensated according to the maximum resistance value among the resistance values of each data line.
Therefore, the charging voltage for charging the storage capacitor of each pixel is compensated, so that the problem of overall dark display picture caused by insufficient charging voltage can be improved, and the display effect can be improved.
In one specific example, the preset charging voltage to the storage capacitor of each pixel is 3V, and this embodiment compensates the charging voltage to 3.2V, so that the storage capacitor of each pixel can be charged to 2.99V to approach the preset charging voltage of 3V.
In some implementations, delaying charging of a storage capacitor of a pixel through a data line includes: the storage capacitor of the pixel is charged through the data line with a delay time by the RC delay circuit. The RC delay circuit is used for realizing time delay, and the device has the advantages of simple structure, high time delay precision, convenience in adjustment of time delay and the like.
In a specific example, the RC delay circuit is shown in fig. 5, and the larger the values of R and C are, the longer the time for the power supply to charge C through R is, and the longer the time duration of the delay is. When the voltage on the capacitor reaches a certain value, the capacitor can discharge, and simultaneously trigger the main circuit connected in parallel to the capacitor C, so that the purpose of starting the main circuit in a delayed manner is achieved. The switch K controls whether the data line starts the delay circuit or not, when the switch K is closed, the delay circuit is not started, and when the switch K is disconnected, the delay circuit is started. The time delay is in direct proportion to the resistance value and the capacitance value of the RC time delay circuit, and the time delay can be accurately designed by designing the resistance value and the capacitance value of the RC time delay circuit. Generally, the delay time is designed to be several time nanoseconds to several hundred nanoseconds.
Further, as shown in fig. 5, the RC delay circuit adopts an RC delay circuit with an adjustable resistance value. The time delay is realized by using the RC time delay circuit with adjustable resistance value, so that the time delay duration can be accurately, efficiently and conveniently adjusted to adapt to the distribution conditions of the resistance values of different data lines, and the hardware implementation of the display driving method provided by the invention can be suitable for display panels of different models.
In a specific example, the resistance value of the RC delay circuit may be adjusted by an initial value of 0, or by an initial value of the resistance value of the corresponding data line.
It should be noted that, besides the RC delay circuit, other methods may also be used to implement the charging delay for the pixel, and this embodiment is not described in detail.
As can be seen from the foregoing description, for each data line, the resistance value of the data line with the longest length is the largest, the charging ramp-up ending time when the storage capacitor of the pixel connected to the data line with the largest resistance value is charged is the latest, and the charging time period is the shortest, so that, in order to facilitate accurate and efficient calculation of the delay time period for charging the storage capacitor of the pixel by the data line with different resistance values, in some implementations, step S20 includes: and according to the difference value between the resistance value of each data line and the maximum resistance value in the resistance values of the data lines, delaying the charging of the storage capacitor of the pixel through the data line.
In one specific example, referring to FIG. 1, the data line SsThe resistance value is maximum in each data line, the climbing ending time is latest, and the charging duration is shortest, so that the data lines S only need to charge the storage capacitors of the pixels connected with other data lines for delaying without delaying the data lines SmFor example, the data line S is obtained by querying the panel data line configuration distribution diagramsResistance value R ofsAnd a data line SmResistance value R ofmCalculating the difference between R and Rs-Rm(ii) a From Δ R, the data line S shown in FIG. 4 can be obtainedsEnd time T of climbing when charging storage capacitor of connected pixelsAnd data line SmEnd time T of climbing when charging storage capacitor of connected pixelmWhen they are consistent, the pair and data line SmThe delay time Δ T for the storage capacitor of the connected pixel to be charged for delay.
In an actual display device, the number of data lines is many, and in order to simplify the complexity of calculating the delay time and performing the delay control, and improve the efficiency of the calculation and the control, in some implementations, the delaying the charging of the storage capacitor of the pixel through the data line according to the difference between the resistance values of the data lines includes: dividing a plurality of adjacent data lines into a data line group, and delaying the charging of the storage capacitor of the pixel through the data lines in the data line group according to the difference value between the average value of the resistance values of the data lines included in the data line group and the maximum resistance value in the resistance values of the data lines. Therefore, the data lines needing time delay are grouped, time delay of unified time length is carried out on the data lines in the group, the complexity of calculating the time delay length and carrying out time delay control can be simplified, and the calculation and control efficiency is improved.
In a specific example, except for the data line with the largest resistance value, the adjacent five data lines of the other data lines may be divided into one group, and the difference between the average value of the resistance values of the five data lines in the group and the maximum resistance value of all the data lines (i.e., Δ R ═ R) may be determined according to the difference between the average value of the resistance values of the five data lines in the group and the maximum resistance value of all the data linesmax-(R1+R2+R3+R4+R5) And/5) to design the delay time of the five data lines in the group. Thus, in combination with the foregoing implementation, one RC delay circuit may be used to simultaneously delay the charging of the storage capacitors of the pixels by the five data lines in the group.
In summary, in the display driving method provided in this embodiment, the storage capacitors of the pixels are charged by the data lines with different resistance values to be delayed, so that the charging time of the storage capacitor of each pixel is close to that of the storage capacitor of each pixel, thereby ensuring the uniformity of the display image and avoiding the abnormality of the display image. Furthermore, the charging voltage for charging the storage capacitor of each pixel is compensated, so that the problem of overall dark display picture caused by insufficient charging voltage can be improved, and the display effect can be improved. The display driving method provided by the embodiment does not affect the size of the driving chip, and is also suitable for display panels of different models.
Another embodiment of the present application provides a display driving apparatus, which includes a driving chip, an obtaining module, and a delay module.
Wherein,
the driving chip is used for compensating charging voltage for charging the storage capacitor of the pixel through each data line according to the maximum resistance value in the resistance values of the data lines;
the acquisition module is used for acquiring the resistance values of a plurality of data lines connecting the driving chip and the display panel;
and the delay module is used for delaying the charging of the storage capacitor of the pixel through the data line according to the difference value between the resistance values of the data lines, so that the charging time for charging the storage capacitor of the pixel through the data lines is approximate.
In some implementations, the driving chip is configured to compensate a charging voltage for charging a storage capacitor of a pixel through each data line according to a maximum resistance value among the resistance values of the data lines.
In some implementations, the delay module includes an RC delay circuit.
In some implementations, the RC delay circuit is an RC delay circuit with an adjustable resistance value.
It should be noted that the principle and the working flow of the display driving apparatus provided in this embodiment are similar to those of the display driving method, and the above description may be referred to for relevant parts, which are not repeated herein.
Another embodiment of the present application provides a display device, including a display panel and the display driving device. The display device may be any product or component having a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator, which is not limited in this embodiment.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is further noted that, in the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be understood that the above-mentioned examples are given for the purpose of illustrating the present application clearly and not for the purpose of limiting the same, and that various other modifications and variations of the present invention may be made by those skilled in the art in light of the above teachings, and it is not intended to be exhaustive or to limit the invention to the precise form disclosed.
Claims (11)
1. A display driving method, comprising:
acquiring resistance values of a plurality of data lines connecting the driving chip and the display panel;
and delaying the charging of the storage capacitor of the pixel through the data line according to the difference value between the resistance values of the data lines, so that the charging time of the storage capacitor of the pixel through the data lines is approximate.
2. The display driving method according to claim 1, further comprising: and compensating the charging voltage for charging the storage capacitor of the pixel through each data line according to the maximum resistance value in the resistance values of the data lines.
3. The method of claim 1, wherein delaying charging of a storage capacitor of a pixel through a data line according to a difference between resistance values of the data lines comprises: and according to the difference value between the resistance value of each data line and the maximum resistance value in the resistance values of the data lines, delaying the charging of the storage capacitor of the pixel through the data line.
4. The method of claim 3, wherein delaying charging of a storage capacitor of a pixel through a data line according to a difference between resistance values of the data lines comprises: dividing a plurality of adjacent data lines into a data line group, and delaying the charging of the storage capacitor of the pixel through the data lines in the data line group according to the difference value between the average value of the resistance values of the data lines included in the data line group and the maximum resistance value in the resistance values of the data lines.
5. The method of claim 1, wherein delaying charging of a storage capacitor of a pixel through a data line according to a difference between resistance values of the data lines comprises: and according to the difference value between the resistance values of the data lines, the storage capacitor of the pixel is charged through the data line by using the RC delay circuit for delaying.
6. The display driving method according to claim 5, wherein the delaying charging the storage capacitor of the pixel through the data line by the RC delay circuit according to the difference between the resistance values of the data lines comprises: and according to the difference value between the resistance values of the data lines, the RC delay circuit with the adjustable resistance value is used for delaying the charging of the storage capacitor of the pixel through the data line.
7. A display driving device comprises a driving chip, and is characterized by further comprising an acquisition module and a delay module;
the acquisition module is used for acquiring resistance values of a plurality of data lines connecting the driving chip and the display panel;
and the time delay module is used for delaying the charging of the storage capacitor of the pixel through the data line according to the difference value between the resistance values of the data lines, so that the charging time for charging the storage capacitor of the pixel through the data lines is approximate.
8. The display driving device according to claim 7, wherein the driving chip compensates a charging voltage for charging the storage capacitor of the pixel through each data line according to a maximum resistance value among the resistance values of the data lines.
9. The display driving device according to claim 7, wherein the delay module comprises an RC delay circuit.
10. The display driving device according to claim 9, wherein the RC delay circuit is an RC delay circuit with an adjustable resistance value.
11. A display device comprising a display panel and the display driving device according to any one of claims 7 to 10.
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