CN114664234A - Hybrid driving method of display and hybrid driving module of display - Google Patents

Hybrid driving method of display and hybrid driving module of display Download PDF

Info

Publication number
CN114664234A
CN114664234A CN202210267691.6A CN202210267691A CN114664234A CN 114664234 A CN114664234 A CN 114664234A CN 202210267691 A CN202210267691 A CN 202210267691A CN 114664234 A CN114664234 A CN 114664234A
Authority
CN
China
Prior art keywords
gray scale
subframe
display
sub
displayed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210267691.6A
Other languages
Chinese (zh)
Other versions
CN114664234B (en
Inventor
刘桉语
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL Huaxing Photoelectric Technology Co Ltd
Original Assignee
TCL Huaxing Photoelectric Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TCL Huaxing Photoelectric Technology Co Ltd filed Critical TCL Huaxing Photoelectric Technology Co Ltd
Priority to CN202210267691.6A priority Critical patent/CN114664234B/en
Publication of CN114664234A publication Critical patent/CN114664234A/en
Application granted granted Critical
Publication of CN114664234B publication Critical patent/CN114664234B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • 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]
    • G—PHYSICS
    • 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]
    • G09G3/3225—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] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application relates to a hybrid driving method of a display and a hybrid driving module of the display, wherein the method comprises the following steps: acquiring a gray scale to be displayed input into a display; adjusting the light-emitting duration of at least one first subframe and/or the light-emitting duration of at least one second subframe according to the gray scale to be displayed; and driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe. According to the method and the device, the mixed driving is adopted, the gray scale to be displayed input into the display is obtained, then the luminous duration of at least one first subframe and/or the luminous duration of at least one second subframe are adjusted according to the gray scale to be displayed, and finally the display is driven according to the luminous duration of each adjusted first subframe and/or the luminous duration of each adjusted second subframe, so that the brightness uniformity of different gray scales can be improved, the color cast phenomenon and the gray scale overturning phenomenon are further improved, the uniformity of a display picture is improved, the pockmark phenomenon is eliminated, and the display effect of the mixed driving is improved.

Description

Hybrid driving method of display and hybrid driving module of display
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a hybrid driving method and a hybrid driving module for a display.
Background
In the current display field, the continuous development and progress of display technologies such as LED displays and AMOLED displays bring increasingly abundant display products. At present, a PAM (Pulse Amplitude Modulation) driving method is often adopted to drive the display for displaying. However, when the PAM driving method is used alone, although display luminance is not lost, a color shift phenomenon occurs when a low-gray-scale screen is displayed.
Solutions have appeared in the related art to improve low gray scale color shift and minimize brightness loss by way of PWM and PAM hybrid driving. After PWM (Pulse Width Modulation) driving is adopted, although the low gray scale color shift phenomenon is improved, in order to reduce power consumption, the display brightness is reduced. Therefore, the improvement effect of the color shift phenomenon needs to be improved.
In addition, the thin film transistor in each pixel circuit of the display in the related art needs a certain time to turn on and off due to its own characteristics. This may cause the gray scale inversion problem in the PWM driving method, which may reduce the visual experience of human eyes and affect the viewing effect.
Disclosure of Invention
In view of this, the present application provides a hybrid driving method of a display and a hybrid driving module of the display, which can improve the brightness uniformity of different gray scales, further improve the color shift phenomenon and the gray scale inversion phenomenon, and simultaneously improve the uniformity of a display image, eliminate the pock phenomenon, and improve the display effect of the hybrid driving.
According to an aspect of the present application, there is provided a hybrid driving method for a display, wherein a frame for driving the display includes at least one first sub-frame and at least one second sub-frame, the first sub-frame is driven by a first driving method, the second sub-frame is driven by a second driving method, the hybrid driving method for the display includes: acquiring a gray scale to be displayed input to the display; adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale to be displayed; and driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
Further, adjusting the light emitting duration of at least one of the first sub-frames and/or the light emitting duration of at least one of the second sub-frames according to the gray scale to be displayed includes: acquiring a gray scale range of the display; dividing a gray scale range of the display into a first gray scale interval and a second gray scale interval, wherein the first gray scale interval corresponds to the first driving mode, and the second gray scale interval corresponds to the second driving mode; and adjusting the light-emitting duration of at least one first subframe and/or the light-emitting duration of at least one second subframe according to the gray scale interval in which the gray scale to be displayed is positioned.
Further, adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale interval where the gray scale to be displayed is located includes: when the gray scale interval where the gray scale to be displayed is located is a first gray scale interval, adjusting the light emitting duration of at least one first subframe; and when the gray scale interval in which the gray scale to be displayed is located is a second gray scale interval, adjusting the light emitting duration of at least one second subframe.
Further, when the gray scale interval in which the gray scale to be displayed is located is a first gray scale interval, adjusting the light emitting duration of at least one first subframe includes: acquiring a weight threshold corresponding to the first gray scale interval; and adjusting the light-emitting duration of at least one first subframe according to the weight threshold value.
Further, the display includes a pixel circuit, a driving transistor is disposed in the pixel circuit, the driving transistor is configured to receive a first driving signal corresponding to the first driving manner, and obtain a weight threshold corresponding to the first gray scale interval, including: acquiring the switching conversion time of the driving transistor, wherein the switching conversion time is the time from the on state to the off state of the driving transistor; acquiring the total luminous time of each first subframe corresponding to the gray scale to be displayed; obtaining a weight coefficient corresponding to each first subframe according to the total luminous duration of each first subframe corresponding to the gray scale to be displayed and the switching time; and determining the weight threshold value according to each weight coefficient.
Further, obtaining a weight coefficient corresponding to each first subframe according to the total light emitting duration of each first subframe corresponding to the gray scale to be displayed and the switching time, includes: acquiring the working time of each first subframe; and obtaining a weight coefficient corresponding to each first subframe according to the working time of each first subframe, the total luminous time of each first subframe corresponding to the gray scale to be displayed and the switching time.
Further, adjusting the light emitting duration of at least one of the first subframes according to the weight threshold includes: when the weight coefficient corresponding to the first subframe is greater than or equal to the weight threshold, reducing the light-emitting duration of the first subframe; and when the weight coefficient corresponding to the first subframe is smaller than the weight threshold, keeping the light-emitting duration of the first subframe unchanged.
Further, when the gray scale interval in which the gray scale to be displayed is located is a second gray scale interval, adjusting the light emitting duration of at least one of the second subframes includes: increasing the gamma voltage corresponding to the gray scale to be displayed; reducing the light emission duration of at least one of the second subframes.
Further, driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe, including: correcting the gamma curve of the display according to the adjusted light-emitting duration of each first sub-frame and/or the adjusted light-emitting duration of each second sub-frame to obtain a corrected gamma curve; and driving the display to display according to the corrected gamma curve.
According to another aspect of the present application, there is provided a hybrid driving module for a display, wherein a frame for driving the display includes at least one first sub-frame and at least one second sub-frame, the first sub-frame is driven by a first driving method, and the second sub-frame is driven by a second driving method, the hybrid driving module includes: a to-be-displayed gray scale obtaining module for obtaining a to-be-displayed gray scale input to the display; the light emitting duration adjusting module is electrically connected with the gray scale acquisition module to be displayed and is used for adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale to be displayed; and the driving display module is electrically connected with the light-emitting duration adjusting module and used for driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
The display device comprises a display, a first driving mode, a second driving mode, a first sub-frame, a second sub-frame, a third sub-frame, a fourth sub-frame, a fifth sub-frame, a sixth sub-frame, a seventh sub-frame, an eighth sub-frame, a seventh sub-frame, a sixth sub-frame, a fifth sub-frame, a sixth sub-frame, a seventh sub-frame, a sixth sub-frame, a fifth sub-frame, a seventh sub-frame, a sixth sub-frame, a seventh, a sixth sub-frame, a seventh, a sixth sub-frame, a seventh, a sixth sub-frame, a seventh, a sixth, a seventh, a sixth, a fourth, a seventh, a sixth, a seventh, a fifth, a sixth, a seventh, a sixth, a seventh, a sixth, a fifth, a sixth, a seventh, a sixth, a seventh, a fourth, a sixth, a.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 shows a schematic diagram of a pixel circuit of the related art.
Fig. 2 shows a schematic diagram of related art PAM and PWM hybrid driving.
Fig. 3 shows a flowchart of a hybrid driving method according to an embodiment of the present application.
Fig. 4 is a schematic diagram illustrating hybrid driving corresponding to a first gray scale interval according to an embodiment of the present disclosure.
Fig. 5 is a schematic diagram illustrating hybrid driving corresponding to a second gray scale interval according to an embodiment of the present application.
Fig. 6 is a schematic diagram showing an operation curve of a driving transistor according to an embodiment of the present application.
Fig. 7 shows a schematic diagram of a hybrid driving method according to an embodiment of the present application.
Fig. 8 shows a schematic structural diagram of a hybrid drive module according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.
Fig. 1 shows a schematic diagram of a pixel circuit of the related art.
As shown in fig. 1, in the related art, the pixel circuit has a 4T1C structure. Specifically, the pixel circuit includes a first transistor T1, a second transistor T2, a driving transistor T3, a switching transistor DT, a storage capacitor Cst, and a light emitting part LED. The gate of the first transistor is electrically connected with a scanning signal G1, the source of the first transistor is electrically connected with a Data signal Data, and the drain of the first transistor is electrically connected with the source of the driving transistor, the gate of the switching transistor and one end of the storage capacitor respectively to form a circuit node G; a gate of the second transistor is electrically connected to the sensing signal G2, a source of the second transistor is electrically connected to a source of the switching transistor DT, the other end of the storage capacitor, and an anode of the light emitting part, respectively, to form a circuit node s, and a drain of the second transistor has a voltage of a reference voltage Vref; the gate of the driving transistor T3 is electrically connected to the driving signal G3, and the drain of the driving transistor is electrically connected to the negative voltage Vneg; the drain electrode of the switching transistor DT is electrically connected with a power supply voltage VDD; the cathode of the light emitting part is grounded (i.e., VSS).
In actual operation, the driving signal G3 may be a PWM signal. Under the control of the scan signal G1, the first transistor T1 may be turned on first, data is written into the circuit node G, charges are stored in the storage capacitor, the voltage of the circuit node G rises accordingly, the switching transistor is turned on, and the light emitting part starts emitting light; then the first transistor T1 is turned off, the voltage of the circuit node g is unchanged due to the charge stored in the storage capacitor, the switching transistor is turned on, and the light emitting component still emits light; next, the driving signal G3 turns on the driving transistor T3, a negative voltage is written to the circuit node G, the switching transistor is turned off, and the light emitting part does not emit light.
Fig. 2 shows a schematic diagram of PAM and PWM hybrid driving of the related art.
As shown in fig. 2, PAM and PWM hybrid driving is employed in the related art. Vneg may be 0V. When the driving transistor G3 is turned on (i.e., turned on), the light emitting part ends emitting light. One frame may include 10 subframes. The respective sub-frames of PAM are scattered and the average distribution is inserted after the respective sub-frames of PWM. For example, in the first sub-frame of PWM, at time G3 of 1/16t (t is the time length of the PWM sub-frame), the light emitting means ends emitting light; in the first subframe of PAM, G4 is not conductive, and the light emitting part continuously emits light.
For another example, when the gray scale is 15, the first sub-frame, the second sub-frame, the third sub-frame, and the fourth sub-frame of the PWM shown in fig. 2 operate simultaneously, and the operating time is t/16+ t/8+ t/4+ t/2 ═ 15/16) t; at gray level 16, the fifth sub-frame of the PWM in FIG. 2 is on for time t. Assuming that the time from the on to off of the driving transistor G3 is X, the operating time is (15/16) t +4X at gray scale 15, which is (t/16+ X) + (t/8+ X) + (t/4+ X) + (t/2+ X); at a gray level of 16, the operating time is t + X. Since the luminance is related to the product of the operating current and the light-emitting time, if the operating time at the 15 th gray scale is longer than the operating time at the 16 th gray scale under the influence of the driving transistor when the operating current is fixed, the luminance at the 15 th gray scale is larger than the luminance at the 16 th gray scale, that is, the luminance at the low gray scale may be larger than the luminance at the higher gray scale, thereby causing the gray scale inversion problem.
In view of the above, the present application provides a hybrid driving method for a display, where a frame for driving the display includes at least one first sub-frame and at least one second sub-frame, the first sub-frame is driven by a first driving method, and the second sub-frame is driven by a second driving method, the hybrid driving method for a display includes: acquiring a gray scale to be displayed input to the display; adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale to be displayed; and driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
The display device comprises a display, a first driving mode, a second driving mode, a first sub-frame, a second sub-frame, a third sub-frame, a fourth sub-frame, a fifth sub-frame, a sixth sub-frame, a fifth sub-frame, a sixth sub-frame, a seventh sub-frame, an eighth sub-frame, a seventh sub-frame, a sixth sub-frame, a seventh sub-frame, a sixth sub-frame, a fifth sub-frame, a fourth sub-frame, a fifth sub-frame, a sixth sub-frame, a seventh sub-frame, a fifth sub-frame, a sixth sub-frame, a fifth sub-frame, a sixth sub-frame, a fourth sub-frame, a seventh sub-frame, a fourth sub-frame, a sixth sub-frame, a fourth sub-frame, a fifth sub-frame, a fourth sub-.
Fig. 3 shows a flowchart of a hybrid driving method according to an embodiment of the present application.
As shown in fig. 3, the hybrid driving method according to the embodiment of the present application may be applied to a display. It is understood that there are various types of displays, and the present application is not limited to the type of display. Specifically, the hybrid driving method may include:
step S1: acquiring a gray scale to be displayed input to the display;
the gray scale to be displayed of the display can be a target gray scale to be used for displaying. For example, the gray levels of the display can be represented by 8 bits, which are respectively 0 to 255 gray levels, and 256(28) gray levels in total. Each gray level may represent a corresponding brightness level. The gray scale to be displayed of the display can be any gray scale from 0 to 255 and is preset.
Step S2: adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale to be displayed;
in the embodiment of the present application, hybrid driving may be performed by using the first driving method and the second driving method. The first driving method may be a PWM driving method, and the second driving method may be a PAM driving method. It is understood that, in addition to the first driving method and the second driving method, the embodiment of the present application may also adopt more than two different driving methods for hybrid driving. Reasonable extension and modification of the hybrid drive according to the embodiment of the present application based on the inventive concept of the present application belong to the protection scope of the present application.
Furthermore, each first sub-frame adopts a first driving mode, and each second sub-frame adopts a second driving mode. Under the condition that the gray scales to be displayed are different, the working states of each first sub-frame and each second sub-frame in a frame may not be the same.
Further, adjusting the light emitting duration of at least one of the first sub-frames and/or the light emitting duration of at least one of the second sub-frames according to the gray scale to be displayed includes:
step S21: acquiring a gray scale range of the display;
the gray scale range of the display may be a target gray scale range displayed by the display. For example, the gray scale range of the display may be 0 to 255 gray scales. It should be noted that for a static frame, the gray scale range of the frame is not necessarily 0 to 255 gray scales, but may be similar to 64 to 128 gray scales. In practical application, the gray scale range can be dynamically adjusted according to needs.
Step S22: dividing a gray scale range of the display into a first gray scale interval and a second gray scale interval, wherein the first gray scale interval corresponds to the first driving mode, and the second gray scale interval corresponds to the second driving mode;
for example, the gray scale range of the display may be 0 to 255 gray scales. At this time, the 0 to 31 gray levels can be divided into a first gray level interval, i.e. a low gray level interval; the 32 to 255 grayscales are divided into a second gray scale section, i.e., a high gray scale section. In the first gray scale interval, the display can display by adopting a first driving mode; in the second gray scale interval, the display can display by adopting a second driving mode. In the first gray scale interval, the display may also display in a second driving manner. It is understood that the mapping relationship between the gray scale interval and the driving method is not limited in the present application.
Step S23: and adjusting the light-emitting duration of at least one first subframe and/or the light-emitting duration of at least one second subframe according to the gray scale interval where the gray scale to be displayed is located.
Adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale interval where the gray scale to be displayed is located, including:
step S231: when the gray scale interval in which the gray scale to be displayed is located is a first gray scale interval, adjusting the light emitting duration of at least one first subframe;
fig. 4 is a schematic diagram illustrating hybrid driving corresponding to a first gray scale interval according to an embodiment of the present disclosure.
As shown in fig. 4, in one frame structure, the PWM driving manner corresponds to 5 first sub-frames, which are respectively a PWM first sub-frame, a PWM second sub-frame, a PWM third sub-frame, a PWM fourth sub-frame, and a PWM fifth sub-frame. To avoid confusion, the above 5 subframes may be referred to as the first subframe in the embodiments of the present application. In addition, in fig. 4, the PAM driving scheme corresponds to 5 second subframes, that is, each PAM subframe in fig. 4, and the 5 PAM subframes may be referred to as second subframes. It should be noted that, in fig. 4, the duration of each first subframe is equal, and the duration of each second subframe is also equal. In practical application, the durations of the sub-frames corresponding to the PWM driving method may be different, and the durations of the sub-frames corresponding to the PAM driving method may also be different. It can be understood that, in the present application, it is not limited whether each subframe corresponding to the PWM driving method is the same or not and whether each subframe corresponding to the PAM driving method is the same or not.
Further, when the gray scale interval in which the gray scale to be displayed is located is a first gray scale interval, adjusting the light emitting duration of at least one first subframe includes:
step S2311: acquiring a weight threshold corresponding to the first gray scale interval;
the weight threshold corresponding to the first gray scale interval can be adjusted according to actual conditions. For example, since the driving methods and driving circuits used in different driving methods may be different, the weight threshold corresponding to the first gray scale section may be adjusted according to the corresponding driving methods and driving circuits. It is to be understood that the present application is not limited to the weight threshold.
Further, the display may include a pixel circuit, where a driving transistor is disposed in the pixel circuit, and the driving transistor is configured to receive a first driving signal corresponding to the first driving manner. For example, in the embodiment of the present application, the pixel circuit may be the pixel circuit in fig. 1, the driving transistor in the embodiment of the present application may be the driving transistor T3 in fig. 1, and the first driving signal may be a PWM signal. The driving transistor may be a thin film transistor.
Further, acquiring a weight threshold corresponding to the first gray scale interval includes:
step A1: acquiring the switching conversion time of the driving transistor, wherein the switching conversion time is the time from the on state to the off state of the driving transistor;
wherein, since the types of the driving transistors can be different in different application scenarios, the switching transition time can also be different for different types of driving transistors. The switching time can be an ideal value or can be measured by related equipment. In the embodiment of the present application, the pixel circuits may be provided in plural, and all the pixel circuits are X assuming that the switching time of the driving transistor in each pixel circuit is the same. It is to be understood that the present application is not limited as to how the switching transition time is obtained.
Step A2: acquiring the total luminous time of each first subframe corresponding to the gray scale to be displayed;
the light emitting duration of each first subframe may be a duration that each first subframe in a frame can enable the corresponding light emitting component to emit light. For example, in fig. 4, for the PMW first subframe, assuming that the total duration of the first subframe is t, the light emitting duration of the first subframe is 1/16 t.
Step A3: obtaining a weight coefficient corresponding to each first subframe according to the total luminous duration of each first subframe corresponding to the gray scale to be displayed and the switching time;
further, obtaining a weight coefficient corresponding to each first subframe according to the total light emitting duration of each first subframe corresponding to the gray scale to be displayed and the switching time, includes:
step A31: acquiring the working time of each first subframe;
in an exemplary frame, the working duration of each first subframe is a total duration of the first subframe, and the working durations of the first subframes are equal and are all t.
Step A32: and obtaining a weight coefficient corresponding to each first subframe according to the working time of each first subframe, the total luminous time of each first subframe corresponding to the gray scale to be displayed and the switching time.
For example, the gray scale to be displayed is 15, at this time, the PWM first sub-frame, the PWM second sub-frame, the PWM third sub-frame, the PWM fourth sub-frame, and the PWM fifth sub-frame in fig. 4 operate simultaneously, and the actual total light emitting time is (t/16+ X) + (t/8+ X) + (t/4+ X) + (t/2+ X) ═ t +4X (15/16); the gray scale to be displayed is 16, at this time, the PWM fifth sub-frame in fig. 4 operates, and the total light emitting time is t + X. In actual work, the total light-emitting duration of each first subframe corresponding to the gray scale to be displayed can be determined through measurement of an instrument, at this time, the working duration of each first subframe and the switching time are both known quantities, and therefore the weight coefficient corresponding to each first subframe can be obtained.
Step A4: and determining the weight threshold value according to each weight coefficient.
For example, the weighting coefficients may be sorted, and an intermediate value may be selected as the weighting threshold. For example, in the embodiment of the present application, the weight threshold may be 3. In practical applications, the weight threshold may also be adaptively adjusted according to an actually measured gamma curve.
Step S2312: and adjusting the light-emitting duration of at least one first subframe according to the weight threshold value.
Further, adjusting the light emitting duration of at least one of the first subframes according to the weight threshold includes:
step B1: when the weight coefficient corresponding to the first subframe is greater than or equal to the weight threshold, reducing the light-emitting duration of the first subframe;
for another example, the gray scale to be displayed is 7, at this time, the PWM first sub-frame, the PWM second sub-frame, and the PWM third sub-frame in fig. 4 operate simultaneously, and the actual total light emitting time is (t/16+ X) + (t/8+ X) + (t/4+ X) ═ t +3X (7/16); the gray scale to be displayed is 8, at this time, the PWM fourth sub-frame in fig. 4 operates, and the total light emitting time is (8/16) t + X.
In the above example, when the gray scale to be displayed is 15, the weighting factor is 4 (i.e., the factor corresponding to X); when the gray scale to be displayed is 16, the weight coefficient is 1; when the gray scale to be displayed is 7, the weight coefficient is 3; when the gray scale to be displayed is 16, the weight coefficient is 1. Since the probability of occurrence of gray scale inversion is increased due to the increase of the weight coefficient, the embodiment of the present application sets the weight threshold to determine under which condition to adjust the duration of each subframe. For example, the weight threshold may be set to 3. And when the weight coefficient corresponding to the gray scale to be displayed is greater than or equal to 3, the driving transistor is turned on in advance to discharge in advance. For example, in FIG. 4, the duration of the PWM third sub-frame (i.e., the 3 rd first sub-frame) may be adjusted from 4/16t to 3.5/16 t.
Step B2: and when the weight coefficient corresponding to the first subframe is smaller than the weight threshold, keeping the light-emitting duration of the first subframe unchanged.
For example, the gray scale to be displayed is 3, at this time, the PWM first sub-frame, the PWM second sub-frame, and the PWM third sub-frame operate simultaneously, and the actual total light emitting time is (t/16+ X) + (t/8+ X) ═ t +2X (3/16); the gray scale to be displayed is 4, at this time, the PWM fourth sub-frame works, and the total lighting time is (4/16) t + X. Since the weight coefficient corresponding to the gray scale 3 is 2 and the weight coefficient corresponding to the gray scale 4 is not more than the weight threshold, the light emitting time duration of each first subframe of the gray scale to be displayed being 3 and the gray scale to be displayed being 4 is kept unchanged.
Step S232: and when the gray scale interval in which the gray scale to be displayed is located is a second gray scale interval, adjusting the light emitting duration of at least one second subframe.
Further, when the gray scale interval in which the gray scale to be displayed is located is a second gray scale interval, adjusting the light emitting duration of at least one of the second subframes includes:
step S2321: increasing the gamma voltage corresponding to the gray scale to be displayed;
step S2322: reducing a light emission duration of at least one of the second subframes.
Because actual luminous efficiency of each lamp bead in the display may be different, in the second gray scale interval, the driving current of part of the lamp beads may be in an unstable interval, thereby causing a pockmark phenomenon to occur on a display picture of the display.
Therefore, based on the fact that the brightness is in direct proportion to the product of the luminous time and the driving current, the embodiment of the application can compensate the unstable driving current corresponding to part of lamp beads by reducing the time of at least one second subframe corresponding to the PAM driving mode and increasing the corresponding gamma voltage, and then eliminate the pocking mark phenomenon.
Fig. 5 is a schematic diagram illustrating hybrid driving corresponding to a second gray scale interval according to an embodiment of the present application.
As shown in fig. 5, the PAM driving scheme corresponds to 5 second subframes (i.e., PAM subframes) in one frame. Wherein the light emitting duration of each of the second sub-frames may be reduced from t to t-t0. Reduced amplitude t0May be related to the switching transition time, e.g. may be several multiples of the switching transition time. t0 may also be adjusted based on the actual measured gamma voltage or other parameters,so as to compensate the unstable current corresponding to part of the lamp beads, further ensure the uniform brightness of each lamp bead and eliminate the pockmark phenomenon. It is to be understood that the present application is not limited to the specific variation of the light emitting duration of each of the second sub-frames.
Step S3: and driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
Further, driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe, including:
step S31: correcting the gamma curve of the display according to the adjusted light-emitting duration of each first sub-frame and/or the adjusted light-emitting duration of each second sub-frame to obtain a corrected gamma curve;
step S32: and driving the display to display according to the corrected gamma curve.
Wherein the modified gamma curve may be a gamma2.2 curve. It can be understood that the embodiment of the present application is not limited to how to modify the gamma curve of the display.
Fig. 6 is a schematic diagram showing an operation curve of a driving transistor according to an embodiment of the present application.
Illustratively, fig. 6 is an output characteristic curve of the driving transistor. Wherein the horizontal axis represents the voltage V between the gate and the source of the driving transistorGSThe vertical axis represents the drain current I of the drive transistorD. Left side is the curve under the pul-Frenkel effect (i.e., Poole-Frenkel emission); the middle is the curve for the sub-threshold characteristic (i.e., sub-threshold) and the right is the curve for the above-threshold characteristic (above-threshold). For different source-drain voltages VDSThe output characteristic curves also differ.
Referring to fig. 6, for the front channel (frontchannel), the forward sub-threshold (frontsub-threshold) is such that the circle black dots are above the corresponding solid lines; for the back-end channel (back channel), the reversed sub-threshold (reverse-threshold) causes the circular black dots to lie below the corresponding solid lines. In the embodiment of the present application, during the process of changing from the reverse sub-threshold to the forward sub-threshold (i.e., the region 61 in fig. 6), the process of turning on and off the driving transistor needs to be maintained at a certain level for a while due to the influence of the characteristics of the driving transistor itself.
Fig. 7 shows a schematic diagram of a hybrid driving method according to an embodiment of the present application.
As shown in fig. 7, in the embodiment of the present application, gray scale data may be input first, and then whether the gray scale data is a high gray scale or a low gray scale may be identified by an algorithm. If the gray scale data is in a low gray scale, a PWM driving mode is adopted, and whether N (namely a weight coefficient) of a data low gray scale area is larger than or equal to 3 (namely a weight threshold value) is identified through an algorithm. If the weight coefficient of the gray scale is greater than or equal to the weight threshold, starting a discharge time adjusting algorithm 1 to approach a corrected gamma2.2 curve, and finally outputting the corrected gamma2.2 curve; if the weight coefficient of the gray scale is smaller than the weight threshold, closing the discharge time adjustment algorithm 1; and if the gray scale data is a high gray scale, adopting a PAM driving mode, and starting the discharge time adjusting algorithm 2 to eliminate the pockmark phenomenon.
In addition, the present application further provides a hybrid driving module of a display, where a frame driving the display includes at least one first sub-frame and at least one second sub-frame, the first sub-frame is driven by a first driving method, the second sub-frame is driven by a second driving method, and the hybrid driving module includes: a to-be-displayed gray scale obtaining module for obtaining a to-be-displayed gray scale input to the display; the light emitting time length adjusting module is electrically connected with the to-be-displayed gray scale acquiring module and is used for adjusting the light emitting time length of at least one first subframe and/or the light emitting time length of at least one second subframe according to the to-be-displayed gray scale; and the driving display module is electrically connected with the light-emitting duration adjusting module and used for driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
Further, the light emitting duration adjustment module includes: the gray scale range acquisition module is used for acquiring a gray scale range of the display; the gray scale division module is used for dividing a gray scale range of the display into a first gray scale interval and a second gray scale interval, wherein the first gray scale interval corresponds to the first driving mode, and the second gray scale interval corresponds to the second driving mode; and the first adjusting module is used for adjusting the light-emitting duration of at least one first subframe and/or the light-emitting duration of at least one second subframe according to the gray scale interval where the gray scale to be displayed is located.
Further, the first adjusting module comprises: the first gray scale interval adjusting module is used for adjusting the light emitting duration of at least one first subframe when the gray scale interval in which the gray scale to be displayed is located is a first gray scale interval; and the second gray scale interval adjusting module is used for adjusting the light emitting duration of at least one second subframe when the gray scale interval in which the gray scale to be displayed is located is the second gray scale interval.
Further, the first gray scale interval adjusting module comprises: the weight threshold value acquisition module is used for acquiring a weight threshold value corresponding to the first gray scale interval; and the weight threshold value adjusting module is used for adjusting the light-emitting duration of at least one first subframe according to the weight threshold value.
Further, the weight threshold acquisition module comprises: the switching conversion time acquisition module is used for acquiring the switching conversion time of the driving transistor, wherein the switching conversion time is the time from the turning-on to the turning-off of the driving transistor; a total light emitting duration obtaining module, configured to obtain a total light emitting duration of each first subframe corresponding to the to-be-displayed gray scale; the weight coefficient acquisition module is used for obtaining the weight coefficient corresponding to each first subframe according to the total luminous duration of each first subframe corresponding to the gray scale to be displayed and the switching time; and the weight threshold value determining module is used for determining the weight threshold value according to each weight coefficient.
Further, the weight coefficient obtaining module includes: a working duration obtaining module, configured to obtain a working duration of each first subframe; and the weight coefficient acquisition submodule is used for acquiring the weight coefficient corresponding to each first subframe according to the working time of each first subframe, the total luminous time of each first subframe corresponding to the gray scale to be displayed and the switching time.
Further, the weight threshold adjustment module comprises: the second adjusting module is used for reducing the light-emitting duration of the first subframe when the weight coefficient corresponding to the first subframe is greater than or equal to the weight threshold; and the third adjusting module is used for keeping the light-emitting duration of the first subframe unchanged when the weight coefficient corresponding to the first subframe is smaller than the weight threshold.
Further, the second gray scale interval adjusting module comprises: the gamma voltage adjusting module is used for increasing the gamma voltage corresponding to the gray scale to be displayed; and the fourth adjusting module is used for reducing the light-emitting duration of at least one second subframe.
Further, the driving display module includes: the gamma curve correction module is used for correcting the gamma curve of the display according to the adjusted light emitting duration of each first sub-frame and/or the adjusted light emitting duration of each second sub-frame to obtain a corrected gamma curve; and the display sub-module is used for driving the display to display according to the corrected gamma curve.
Fig. 8 shows a schematic structural diagram of a hybrid drive module according to an embodiment of the present application.
As shown in fig. 8, the hybrid driving module of the display according to the embodiment of the present disclosure may include an algorithm obtaining gray scale data module, a low gray scale monitoring module, a high gray scale monitoring module, an algorithm adjusting time module 1, and an algorithm adjusting time module 2.
The module for acquiring the gray scale data by the algorithm can input PWM voltage data; the low gray scale monitoring module can be used for monitoring the brightness display condition in a low gray scale interval, and the high gray scale monitoring module can be used for monitoring the brightness display condition in a high gray scale interval. The algorithm adjusting time module 1 can be used for adjusting the light emitting duration of at least one first subframe corresponding to the low gray scale interval so as to approach a modified gamma2.2 curve; the algorithm adjusting time module 2 can be used for adjusting the light emitting duration of at least one second sub-frame corresponding to the high gray scale interval, so that the pockmark phenomenon of uneven light emitting of the LED is corrected. For a more detailed part of the hybrid driving module of the display, reference may be made to a hybrid driving method of the display, which is not described herein again.
Therefore, the embodiment of the application calculates whether the weight turns on the time module 1 by adjusting the time dimension of the low-gray-scale PWM driving mode, so that gamma gray scale inversion can be counteracted; through adjusting the time dimension of the high-gray-scale PAM driving mode, the pit compensation region can be obtained, pits are eliminated, and the display effect of hybrid driving is optimized, so that the specification of a display picture is more standard.
It is to be understood that the algorithm in the embodiments of the present application can be implemented in various programming languages, and the present application is not limited to how the various algorithms or methods described above are implemented. Aiming at different application scenes, the method and the device can also have multiple implementation schemes, and can be adjusted according to actual conditions, so that the cost and the effect are optimized.
To sum up, this application embodiment carries out hybrid drive through adopting first drive mode and second drive mode to through acquireing and inputing the grey scale that waits to show of display, according to after, wait to show the grey scale adjustment at least one the luminous time of first subframe and/or at least one the luminous time of second subframe drives according to the luminous time of each first subframe after the adjustment and/or the luminous time of each second subframe the display shows, can promote the luminance homogeneity of different grey scales, further improves look partially phenomenon and grey scale upset phenomenon, promotes the homogeneity that shows the picture simultaneously, eliminates pock phenomenon, promotes hybrid drive's display effect.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The hybrid driving method of the display and the hybrid driving module of the display provided in the embodiments of the present application are described in detail above, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A hybrid driving method for a display, wherein one frame for driving the display comprises at least one first sub-frame and at least one second sub-frame, the first sub-frame is driven by a first driving method, the second sub-frame is driven by a second driving method, the hybrid driving method for the display comprises:
acquiring a gray scale to be displayed input into the display;
adjusting the light-emitting duration of at least one first subframe and/or the light-emitting duration of at least one second subframe according to the gray scale to be displayed;
and driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
2. The hybrid driving method of claim 1, wherein adjusting the light emitting duration of at least one of the first sub-frames and/or the light emitting duration of at least one of the second sub-frames according to the gray scale to be displayed comprises:
acquiring a gray scale range of the display;
dividing a gray scale range of the display into a first gray scale interval and a second gray scale interval, wherein the first gray scale interval corresponds to the first driving mode, and the second gray scale interval corresponds to the second driving mode;
and adjusting the light-emitting duration of at least one first subframe and/or the light-emitting duration of at least one second subframe according to the gray scale interval in which the gray scale to be displayed is positioned.
3. The method of claim 2, wherein adjusting the duration of at least one of the first sub-frames and/or the second sub-frames according to the gray scale interval in which the gray scale to be displayed is located comprises:
when the gray scale interval where the gray scale to be displayed is located is a first gray scale interval, adjusting the light emitting duration of at least one first subframe;
and when the gray scale interval in which the gray scale to be displayed is located is a second gray scale interval, adjusting the light emitting duration of at least one second subframe.
4. The hybrid driving method of claim 3, wherein when the gray scale interval in which the gray scale to be displayed is located is a first gray scale interval, adjusting the light emitting duration of at least one of the first sub-frames comprises:
acquiring a weight threshold corresponding to the first gray scale interval;
and adjusting the light-emitting duration of at least one first subframe according to the weight threshold.
5. The hybrid driving method of claim 4, wherein the display comprises a pixel circuit, and a driving transistor is disposed in the pixel circuit, and the driving transistor is configured to receive a first driving signal corresponding to the first driving manner and obtain a weight threshold corresponding to the first gray scale interval, and the method comprises:
acquiring the switching conversion time of the driving transistor, wherein the switching conversion time is the time from the on state to the off state of the driving transistor;
acquiring the total luminous time of each first subframe corresponding to the gray scale to be displayed;
obtaining a weight coefficient corresponding to each first subframe according to the total luminous duration of each first subframe corresponding to the gray scale to be displayed and the switching time;
and determining the weight threshold value according to each weight coefficient.
6. The hybrid driving method of claim 4, wherein obtaining the weighting factor corresponding to each first subframe according to the total light-emitting duration and the switching time of each first subframe corresponding to the gray scale to be displayed comprises:
acquiring the working time of each first subframe;
and obtaining a weight coefficient corresponding to each first subframe according to the working time of each first subframe, the total luminous time of each first subframe corresponding to the gray scale to be displayed and the switching time.
7. The hybrid driving method of claim 4, wherein adjusting the light emitting duration of at least one of the first sub-frames according to the weight threshold comprises:
when the weight coefficient corresponding to the first subframe is greater than or equal to the weight threshold, reducing the light-emitting duration of the first subframe;
and when the weight coefficient corresponding to the first subframe is smaller than the weight threshold, keeping the light-emitting duration of the first subframe unchanged.
8. The hybrid driving method of claim 3, wherein when the gray scale interval in which the gray scale to be displayed is located is a second gray scale interval, adjusting the light emitting duration of at least one of the second sub-frames comprises:
increasing gamma voltage corresponding to the gray scale to be displayed;
reducing a light emission duration of at least one of the second subframes.
9. The hybrid driving method of claim 1, wherein driving the display according to the adjusted light emitting duration of each first sub-frame and/or the adjusted light emitting duration of each second sub-frame comprises:
correcting the gamma curve of the display according to the adjusted light-emitting duration of each first sub-frame and/or the adjusted light-emitting duration of each second sub-frame to obtain a corrected gamma curve;
and driving the display to display according to the corrected gamma curve.
10. A hybrid driving module for a display, wherein a frame for driving the display comprises at least one first sub-frame and at least one second sub-frame, the first sub-frame is driven by a first driving method, and the second sub-frame is driven by a second driving method, the hybrid driving module comprising:
a to-be-displayed gray scale acquisition module for acquiring a to-be-displayed gray scale input to the display;
the light emitting duration adjusting module is electrically connected with the gray scale acquisition module to be displayed and is used for adjusting the light emitting duration of at least one first subframe and/or the light emitting duration of at least one second subframe according to the gray scale to be displayed;
and the driving display module is electrically connected with the light-emitting duration adjusting module and used for driving the display to display according to the adjusted light-emitting duration of each first subframe and/or the adjusted light-emitting duration of each second subframe.
CN202210267691.6A 2022-03-17 2022-03-17 Hybrid driving method of display and hybrid driving module of display Active CN114664234B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210267691.6A CN114664234B (en) 2022-03-17 2022-03-17 Hybrid driving method of display and hybrid driving module of display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210267691.6A CN114664234B (en) 2022-03-17 2022-03-17 Hybrid driving method of display and hybrid driving module of display

Publications (2)

Publication Number Publication Date
CN114664234A true CN114664234A (en) 2022-06-24
CN114664234B CN114664234B (en) 2023-06-30

Family

ID=82029847

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210267691.6A Active CN114664234B (en) 2022-03-17 2022-03-17 Hybrid driving method of display and hybrid driving module of display

Country Status (1)

Country Link
CN (1) CN114664234B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115050317A (en) * 2022-07-15 2022-09-13 惠科股份有限公司 Data driving circuit, display module and method for outputting driving signal
CN117079587A (en) * 2023-10-16 2023-11-17 长春希达电子技术有限公司 Active Micro-LED uniformity compensation method and display device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060146827A1 (en) * 2004-12-31 2006-07-06 Lg Electronics Inc. Organic electroluminescent device and method of driving the same
KR20060127356A (en) * 2005-06-07 2006-12-12 엘지전자 주식회사 Driving method of pmoled and driving circuit of the same
CN111564143A (en) * 2020-04-13 2020-08-21 北京显芯科技有限公司 LED driving chip, backlight unit, display panel and display device
CN113066423A (en) * 2019-12-31 2021-07-02 Tcl集团股份有限公司 LED display drive control method and device
CN113658551A (en) * 2021-08-19 2021-11-16 深圳市华星光电半导体显示技术有限公司 Pixel circuit driving method, pixel driving device and display device
CN113889039A (en) * 2021-11-18 2022-01-04 京东方科技集团股份有限公司 Pixel circuit, driving method thereof, display substrate and display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060146827A1 (en) * 2004-12-31 2006-07-06 Lg Electronics Inc. Organic electroluminescent device and method of driving the same
KR20060127356A (en) * 2005-06-07 2006-12-12 엘지전자 주식회사 Driving method of pmoled and driving circuit of the same
CN113066423A (en) * 2019-12-31 2021-07-02 Tcl集团股份有限公司 LED display drive control method and device
CN111564143A (en) * 2020-04-13 2020-08-21 北京显芯科技有限公司 LED driving chip, backlight unit, display panel and display device
CN113658551A (en) * 2021-08-19 2021-11-16 深圳市华星光电半导体显示技术有限公司 Pixel circuit driving method, pixel driving device and display device
CN113889039A (en) * 2021-11-18 2022-01-04 京东方科技集团股份有限公司 Pixel circuit, driving method thereof, display substrate and display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115050317A (en) * 2022-07-15 2022-09-13 惠科股份有限公司 Data driving circuit, display module and method for outputting driving signal
CN115050317B (en) * 2022-07-15 2023-03-21 惠科股份有限公司 Data driving circuit, display module and method for outputting driving signal
CN117079587A (en) * 2023-10-16 2023-11-17 长春希达电子技术有限公司 Active Micro-LED uniformity compensation method and display device
CN117079587B (en) * 2023-10-16 2024-01-09 长春希达电子技术有限公司 Active Micro-LED uniformity compensation method and display device

Also Published As

Publication number Publication date
CN114664234B (en) 2023-06-30

Similar Documents

Publication Publication Date Title
US7561128B2 (en) Organic electroluminescence display device
US7088051B1 (en) OLED display with control
JP4964033B2 (en) Organic light emitting diode display device and driving method thereof
US7986286B2 (en) Organic electro-luminescent display and method of making the same
US8330684B2 (en) Organic light emitting display and its driving method
EP1318499A2 (en) Display apparatus with active matrix type display panel
US20080018632A1 (en) Driving To Reduce Aging In An Active Matrix Led Display
KR102544572B1 (en) Display apparatus
US8508440B2 (en) Organic light emitting display, and method for driving organic light emitting display and pixel circuit
CN114664234B (en) Hybrid driving method of display and hybrid driving module of display
US7463224B2 (en) Light emitting device and display device
JP2013061390A (en) Display device
KR20200088545A (en) Display apparatus and method of driving display panel using the same
KR20100003459A (en) Organic light emitting display device and driving method thereof
CN110634442A (en) OLED display device and driving method thereof
CN111341278A (en) Overdrive processing method and overdrive device for image data
EP3675104A1 (en) Display apparatus and method of driving the same
US20040145597A1 (en) Driving method for electro-optical device, electro-optical device, and electronic apparatus
CN110599945B (en) LED display device and driving method thereof
US10152909B2 (en) Display apparatus
JP2005300929A (en) Display device
US11475821B2 (en) Display device
KR100836430B1 (en) Organic light emitting display device
CN113903290A (en) Display device
KR20080060897A (en) Organic light emitting display and method for driving the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant