Charging method and device based on multiplexer (mux) and display device
By extending the charging time of the sub-pixel units in the Mux charging module and adjusting the charging parameters, the problem of insufficient pixel charging was solved, ensuring the display effect of the display device.
Patent Information
- Application Number
- CN202210141484.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-02-16
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2042-02-16
AI Technical Summary
Existing Mux-based charging methods suffer from insufficient pixel charging, leading to abnormal display effects in electronic devices.
By identifying conditions that are met, the charging time of the sub-pixel units in the Mux charging module is extended to the target charging time, and charging is performed according to the target charging time, including updating the charging start time and end time, and adjusting the charging voltage.
The charging time of the sub-pixel unit was extended, which met the charging requirements and ensured the display effect of the display device.
Smart Images

Figure CN116645899B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of computer application technology, and in particular to a charging method, apparatus and display device based on a multiplexer (Mux). Background Technology
[0002] Currently, charging methods based on Mux (Multiplexer) have been widely used due to their advantages such as fewer transmission lines and smaller DDIC (Display Driver Integrated Circuit) size. However, Mux-based charging methods in related technologies suffer from insufficient pixel charging, leading to abnormal display effects in electronic devices. Summary of the Invention
[0003] This disclosure provides a charging method, apparatus, display device, electronic device, computer-readable storage medium, and computer program product based on a multiplexer (Mux) to at least solve the problem of insufficient pixel charging in related technologies. The technical solution of this disclosure is as follows:
[0004] According to a first aspect of the present disclosure, a charging method based on a multiplexer (Mux) is provided, comprising: identifying that a set condition is currently met, extending the charging time of a sub-pixel unit in a Mux charging module to a target charging time, wherein the target charging time is less than the total charging time of the Mux charging module; and charging the sub-pixel unit according to the target charging time.
[0005] In one embodiment of this disclosure, extending the charging time of the sub-pixel unit in the Mux charging module to a target charging time includes: obtaining a reference charging time of the sub-pixel unit; and extending the charging time of the sub-pixel unit from the reference charging time to the target charging time.
[0006] In one embodiment of this disclosure, charging the sub-pixel unit according to the target charging duration includes: updating the charging start time and / or charging end time of the sub-pixel unit based on the reference charging duration and the target charging duration; and charging the sub-pixel unit according to the updated charging start time and / or charging end time of the sub-pixel unit.
[0007] In one embodiment of this disclosure, the Mux charging module includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The charging order of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to the red channel, the green channel, and the blue channel, respectively.
[0008] The step of updating the charging start time and / or charging end time of the sub-pixel unit based on the reference charging duration and the target charging duration includes: obtaining the time difference between the target charging duration and the reference charging duration; maintaining the charging start time of the first sub-pixel unit and delaying the charging end time of the first sub-pixel unit by the time difference; and / or, advancing the charging start time of the second sub-pixel unit by half of the time difference and delaying the charging end time of the second sub-pixel unit by half of the time difference; and / or, advancing the charging start time of the third sub-pixel unit by the time difference and maintaining the charging end time of the third sub-pixel unit.
[0009] In one embodiment of this disclosure, the Mux charging module further includes transistors corresponding one-to-one with the sub-pixel units; charging the sub-pixel units according to the updated charging start time and / or updated charging end time of the sub-pixel units includes: driving the transistors corresponding to the sub-pixel units to conduct according to the updated charging start time of the sub-pixel units, and / or turning off the transistors corresponding to the sub-pixel units according to the updated charging end time of the sub-pixel units.
[0010] In one embodiment of this disclosure, charging the sub-pixel unit according to the target charging duration includes: updating the charging voltage of any sub-pixel unit to the target charging voltage in each charging time period, wherein the total duration of each charging time period of any sub-pixel unit is the target charging duration; and charging the any sub-pixel unit in any charging time period according to the target charging voltage of the any sub-pixel unit in any charging time period.
[0011] In one embodiment of this disclosure, the method further includes: acquiring the charging capacitor and reference charging voltage of each sub-pixel unit; and determining the target charging voltage of any sub-pixel unit in each charging time period based on the charging capacitor, the reference charging voltage, the reference charging duration, and the target charging duration of each sub-pixel unit.
[0012] In one embodiment of this disclosure, the set conditions include increasing the refresh rate of the display device, and / or shortening the charging time of the sub-pixel unit, and / or reducing the charging capacity of the Mux charging module.
[0013] According to a second aspect of the present disclosure, a charging device based on a multiplexer (Mux) is provided, comprising: an extension module configured to perform an action to identify that a set condition is currently met and extend the charging time of a sub-pixel unit in the Mux charging module to a target charging time, wherein the target charging time is less than the total charging time of the Mux charging module; and a Mux charging module configured to perform an action to charge the sub-pixel unit according to the target charging time.
[0014] In one embodiment of this disclosure, the extension module is further configured to perform: obtaining a reference charging duration of the sub-pixel unit; and extending the charging duration of the sub-pixel unit from the reference charging duration to the target charging duration.
[0015] In one embodiment of this disclosure, the Mux charging module includes: an update unit configured to update the charging start time and / or charging end time of the sub-pixel unit based on the reference charging duration and the target charging duration; and a charging unit configured to charge the sub-pixel unit according to the updated charging start time and / or updated charging end time of the sub-pixel unit.
[0016] In one embodiment of this disclosure, the Mux charging module includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The charging order of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to the red channel, the green channel, and the blue channel, respectively.
[0017] The update unit is further configured to perform: acquiring the time difference between the target charging duration and the reference charging duration; maintaining the charging start time of the first sub-pixel unit and delaying the charging end time of the first sub-pixel unit by the time difference; and / or, advancing the charging start time of the second sub-pixel unit by half of the time difference and delaying the charging end time of the second sub-pixel unit by half of the time difference; and / or, advancing the charging start time of the third sub-pixel unit by the time difference and maintaining the charging end time of the third sub-pixel unit.
[0018] In one embodiment of this disclosure, the Mux charging module further includes transistors corresponding one-to-one with the sub-pixel units; the charging unit is further configured to perform: turning on the transistors corresponding to the sub-pixel units according to the updated charging start time of the sub-pixel units, and / or turning off the transistors corresponding to the sub-pixel units according to the updated charging end time of the sub-pixel units.
[0019] In one embodiment of this disclosure, the Mux charging module is further configured to: update the charging voltage of any sub-pixel unit to a target charging voltage in each charging time period, wherein the total duration of each charging time period of any sub-pixel unit is the target charging duration; and charge any sub-pixel unit in any charging time period according to the target charging voltage of any sub-pixel unit in any charging time period.
[0020] In one embodiment of this disclosure, the apparatus further includes: an acquisition module configured to acquire the charging capacitance and reference charging voltage of each sub-pixel unit; and a determination module configured to determine the target charging voltage of any sub-pixel unit in each charging time period based on the charging capacitance, the reference charging voltage, the reference charging duration, and the target charging duration of each sub-pixel unit.
[0021] In one embodiment of this disclosure, the set conditions include increasing the refresh rate of the display device, and / or shortening the charging time of the sub-pixel unit, and / or reducing the charging capacity of the Mux charging module.
[0022] According to a third aspect of the present disclosure, a display device is provided, comprising: a charging device based on a multiplexer (Mux) as described in a second aspect of the present disclosure.
[0023] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the instructions to implement a charging method based on a multiplexer (Mux) as described in a first aspect of the present disclosure.
[0024] According to a fifth aspect of the present disclosure, a computer-readable storage medium is provided that, when instructions in the computer-readable storage medium are executed by a processor of an electronic device, enables the electronic device to perform a charging method based on a multiplexer (Mux) as described in the first aspect of the present disclosure.
[0025] According to a sixth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor of an electronic device, implements the charging method based on a multiplexer (Mux) as described in the first aspect of the present disclosure.
[0026] The technical solution provided by the embodiments of this disclosure brings at least the following beneficial effects: it can identify when the set conditions are met, extend the charging time of the sub-pixel units in the Mux charging module to the target charging time, and charge the sub-pixel units according to the target charging time. Therefore, when the set conditions are met, the charging time of the sub-pixel units can be extended, the charging requirements of the sub-pixel units can be met, the problem of insufficient charging of sub-pixel units in related technologies is solved, and the display effect of the display device is guaranteed.
[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure, and are not intended to unduly limit this disclosure.
[0029] Figure 1 This is a flowchart illustrating a charging method based on a multiplexer (Mux) according to an exemplary embodiment.
[0030] Figure 2 This is a flowchart illustrating a charging method based on a multiplexer (Mux) according to an exemplary embodiment, in which the charging duration of a sub-pixel unit is extended to a target charging duration.
[0031] Figure 3 This is a charging timing diagram of a sub-pixel unit in a charging method based on a multiplexer (Mux) according to an exemplary embodiment.
[0032] Figure 4 This is a charging timing diagram of a sub-pixel unit in a charging method based on a multiplexer Mux, according to another exemplary embodiment.
[0033] Figure 5 This is a charging timing diagram of a sub-pixel unit in a charging method based on a multiplexer Mux, according to another exemplary embodiment.
[0034] Figure 6 This is a flowchart illustrating a charging method based on a multiplexer (Mux) according to an exemplary embodiment, in which sub-pixel units are charged according to a target charging duration.
[0035] Figure 7 This is a block diagram of a Mux charging module in a charging method based on a multiplexer Mux, according to an exemplary embodiment.
[0036] Figure 8This is a flowchart illustrating the charging of sub-pixel units according to a target charging duration in a charging method based on a multiplexer Mux, according to another exemplary embodiment.
[0037] Figure 9 This is a block diagram illustrating a charging device based on a multiplexer (Mux) according to an exemplary embodiment.
[0038] Figure 10 This is a block diagram illustrating a display device according to an exemplary embodiment.
[0039] Figure 11 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation
[0040] To enable those skilled in the art to better understand the technical solutions of this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.
[0041] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0042] Figure 1 This is a flowchart illustrating a charging method based on a multiplexer (Mux) according to an exemplary embodiment, such as... Figure 1 As shown in the figure, the charging method based on a multiplexer (Mux) according to an embodiment of this disclosure includes the following steps.
[0043] S101, identify that the current set conditions are met, and extend the charging time of the sub-pixel unit in the Mux charging module to the target charging time, wherein the target charging time is less than the total charging time of the Mux charging module.
[0044] It should be noted that the executing entity of the charging method based on a multiplexer (Mux) in this disclosure is an electronic device (such as a display device), which includes, but is not limited to, mobile phones, laptops, desktop computers, vehicle terminals, smart home appliances, etc. The charging method based on a multiplexer (Mux) in this disclosure can be executed by the charging device based on a multiplexer (Mux) in this disclosure. The charging device based on a multiplexer (Mux) in this disclosure can be configured in any electronic device (such as a display device) to execute the charging method based on a multiplexer (Mux) in this disclosure. The following description uses a display device as the executing entity to illustrate the charging method based on a multiplexer (Mux) in this disclosure.
[0045] In embodiments of this disclosure, the display device includes a Mux (Multiplexer) charging module, which comprises sub-pixel units. It should be noted that the circuit structure of the Mux charging module is not overly limited; for example, the Mux charging module can have a 1:2 circuit structure, a 1:3 circuit structure, etc. A 1:2 circuit structure refers to one charging line charging two sub-pixel units, and a 1:3 circuit structure refers to one charging line charging three sub-pixel units.
[0046] It should be noted that the total charging time of the Mux charging module refers to the sum of the charging times of each sub-pixel unit within one working cycle, while the charging time of a sub-pixel unit refers to the charging time of that sub-pixel unit within one working cycle. It is understood that the charging times of different sub-pixel units may differ, or each sub-pixel unit may have the same charging time. No specific limitations are imposed on the total charging time of the Mux charging module or the charging time of each sub-pixel unit.
[0047] It should be noted that the setting conditions refer to the conditions for extending the charging time of the sub-pixel units. There are no strict limitations on the setting conditions; for example, the setting conditions may include increasing the refresh rate of the display device, and / or shortening the charging time of the sub-pixel units, and / or reducing the charging capability of the Mux charging module. It should also be noted that the charging capability of the Mux charging module refers to its ability to charge the sub-pixel units. For example, the charging capability of the Mux charging module may include the charging capability of the DDIC (Display Driver Integrated Circuit) and other hardware circuits.
[0048] In one implementation, the refresh rate of the display device can be detected by a refresh rate detection device, and / or the charging duration of the sub-pixel unit can be detected by a timing device, and / or the charging capability of the Mux charging module can be detected by a charging capability detection device. For example, the charging parameters of the Mux charging module can be detected by the charging capability detection device to detect the charging capability of the Mux charging module, and the charging parameters of the Mux charging module are used to characterize the charging capability of the Mux charging module.
[0049] In the embodiments of this disclosure, it is possible to identify when a set condition is met and extend the charging time of the sub-pixel unit in the Mux charging module to a target charging time. The target charging time is less than the total charging time of the Mux charging module. It should be noted that the target charging time is not subject to excessive limitations; for example, if the total charging time of the Mux charging module is T, the target charging time could be T / 2, 2T / 3, etc.
[0050] S102, charge the sub-pixel unit according to the target charging time.
[0051] In the embodiments of this disclosure, the sub-pixel unit can be charged according to the target charging time, that is, the sub-pixel unit can be charged according to the extended charging time of the sub-pixel unit.
[0052] In one embodiment, charging the sub-pixel unit according to a target charging duration may include sending a Mux drive signal to the charging line, the Mux drive signal carrying the target charging duration, and controlling the charging line to charge the sub-pixel unit according to the target charging duration based on the Mux drive signal.
[0053] The charging method based on a multiplexer (Mux) provided in this disclosure can identify when set conditions are met, extend the charging time of sub-pixel units in the Mux charging module to a target charging time, and charge the sub-pixel units according to the target charging time. Therefore, when the set conditions are met, the charging time of the sub-pixel units can be extended, satisfying their charging needs and solving the problem of insufficient charging of sub-pixel units in related technologies, thereby ensuring the display effect of the display device.
[0054] Based on any of the above embodiments, such as Figure 2 As shown, extending the charging time of the sub-pixel units in the Mux charging module to the target charging time in step S101 may include:
[0055] S201, obtain the reference charging time of the sub-pixel unit.
[0056] In the embodiments of this disclosure, a reference charging time can be preset for the sub-pixel unit. The reference charging time is less than the total charging time of the Mux charging module, and there are no excessive limitations on the reference charging time.
[0057] In one implementation, the reference charging time can be the average of the total charging times of the Mux charging modules. For example, if the total charging time of the Mux charging modules is T, and the Mux charging modules have a 1:2 circuit structure, then the reference charging time can be T / 2; if the Mux charging modules have a 1:3 circuit structure, then the reference charging time can be T / 3.
[0058] In one embodiment, the Mux charging module has a 1:3 circuit structure. The Mux charging module includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The charging order of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to the red channel, the green channel, and the blue channel, respectively.
[0059] like Figure 3 As shown, the total charging time of the Mux charging module is T, and the charging time for the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit is T / 3. Within one working cycle, charging of the first sub-pixel unit begins at t=0, charging of the first sub-pixel unit ends at t=T / 3 and charging of the second sub-pixel unit begins at t=2T / 3, charging of the second sub-pixel unit ends and charging of the third sub-pixel unit begins at t=T, and charging of the third sub-pixel unit ends at t=T.
[0060] S202 extends the charging time of the sub-pixel unit from the reference charging time to the target charging time.
[0061] In embodiments of this disclosure, if the reference charging time is less than the target charging time, the charging time of the sub-pixel unit can be extended from the reference charging time to the target charging time.
[0062] by Figure 3 , 4 For example, with a reference charging time of T / 3 and a target charging time of T / 2, the charging time of the sub-pixel unit can be extended from T / 3 to T / 2. At t=0, charging of the first sub-pixel unit begins; at t=T / 4, charging of the second sub-pixel unit begins; at t=T / 2, charging of the first sub-pixel unit ends, and charging of the third sub-pixel unit begins; at t=3T / 4, charging of the second sub-pixel unit ends; and at t=T, charging of the third sub-pixel unit ends.
[0063] by Figure 3 , 5For example, with a reference charging time of T / 3 and a target charging time of 2T / 3, the charging time of the sub-pixel unit can be extended from T / 3 to 2T / 3. Charging of the first sub-pixel unit begins at t=0, charging of the second sub-pixel unit begins at t=T / 6, charging of the third sub-pixel unit begins at t=T / 3, charging of the first sub-pixel unit ends at t=2T / 3, charging of the second sub-pixel unit ends at t=5T / 6, and charging of the third sub-pixel unit ends at t=T.
[0064] Therefore, this method can obtain the reference charging time of the sub-pixel unit and extend the charging time of the sub-pixel unit from the reference charging time to the target charging time, so as to extend the charging time of the sub-pixel unit.
[0065] Based on any of the above embodiments, such as Figure 6 As shown, step S102, which involves charging the sub-pixel unit according to the target charging duration, may include:
[0066] S601, based on the reference charging duration and the target charging duration, updates the charging start time and / or charging end time of the sub-pixel unit.
[0067] It should be noted that the charging start time of a sub-pixel unit refers to the charging start time of the sub-pixel unit within one working cycle, and is updated with each working cycle. The charging end time of a sub-pixel unit refers to the charging end time of the sub-pixel unit within one working cycle, and is updated with each working cycle. Understandably, the charging start time and charging end time may differ for different sub-pixel units.
[0068] In one implementation, updating the charging start time and / or charging end time of a sub-pixel unit based on a reference charging duration and a target charging duration may include updating the charging start time and / or charging end time of the sub-pixel unit based on the time difference and / or ratio between the reference charging duration and the target charging duration.
[0069] In one embodiment, the Mux charging module has a 1:3 circuit structure. The Mux charging module includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The charging order of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to the red channel, the green channel, and the blue channel, respectively.
[0070] Based on a reference charging duration and a target charging duration, updating the charging start time and / or charging end time of a sub-pixel unit may include obtaining the time difference between the target charging duration and the reference charging duration, maintaining the charging start time of the first sub-pixel unit, and delaying the charging end time of the first sub-pixel unit by the time difference; and / or, advancing the charging start time of the second sub-pixel unit by half the time difference, and delaying the charging end time of the second sub-pixel unit by half the time difference; and / or, advancing the charging start time of the third sub-pixel unit by the time difference, and maintaining the charging end time of the third sub-pixel unit.
[0071] by Figure 3 , 4 For example, if the reference charging time is T / 3 and the target charging time is T / 2, the charging time of the sub-pixel unit can be extended from T / 3 to T / 2. The time difference between the target charging time and the reference charging time is T / 6.
[0072] like Figure 3 As shown, the charging start time and charging end time of the first sub-pixel unit are t=0 and t=T / 3, respectively; the charging start time and charging end time of the second sub-pixel unit are t=T / 3 and t=2T / 3, respectively; and the charging start time and charging end time of the third sub-pixel unit are t=2T / 3 and t=T, respectively.
[0073] like Figure 4 As shown, the charging start time and charging end time of the first sub-pixel unit are t=0 and t=T / 2, respectively, that is, maintaining the charging start time of the first sub-pixel unit and delaying the charging end time of the first sub-pixel unit by T / 6; the charging start time and charging end time of the second sub-pixel unit are t=T / 4 and t=3T / 4, respectively, that is, advancing the charging start time of the second sub-pixel unit by T / 12 and delaying the charging end time of the second sub-pixel unit by T / 12; the charging start time and charging end time of the third sub-pixel unit are t=T / 2 and t=T, respectively, that is, advancing the charging start time of the third sub-pixel unit by T / 6 and maintaining the charging end time of the third sub-pixel unit.
[0074] by Figure 3 , 5 For example, if the reference charging time is T / 3 and the target charging time is 2T / 3, the charging time of the sub-pixel unit can be extended from T / 3 to 2T / 3. The time difference between the target charging time and the reference charging time is T / 3.
[0075] like Figure 5As shown, the charging start time and charging end time of the first sub-pixel unit are t=0 and t=2T / 3, respectively, that is, maintaining the charging start time of the first sub-pixel unit and delaying the charging end time of the first sub-pixel unit by T / 3; the charging start time and charging end time of the second sub-pixel unit are t=T / 6 and t=5T / 6, respectively, that is, advancing the charging start time of the second sub-pixel unit by T / 6 and delaying the charging end time of the second sub-pixel unit by T / 6; the charging start time and charging end time of the third sub-pixel unit are t=T / 3 and t=T, respectively, that is, advancing the charging start time of the third sub-pixel unit by T / 3 and maintaining the charging end time of the third sub-pixel unit.
[0076] In one implementation, the start and end times of charging of the sub-pixel units are related to the circuit structure of the Mux charging module and the charging sequence of the sub-pixel units.
[0077] In one implementation, updating the charging start time and / or charging end time of a sub-pixel unit based on a reference charging duration and a target charging duration may include pre-establishing a mapping relationship or mapping table between the reference charging duration, the target charging duration, and the update method. After obtaining the reference charging duration and the target charging duration, the mapping relationship or mapping table is queried to obtain the update method, and the charging start time and / or charging end time of the sub-pixel unit is updated according to the update method.
[0078] S602 charges the sub-pixel unit according to the updated charging start time and / or updated charging end time of the sub-pixel unit.
[0079] In one implementation, charging the sub-pixel unit according to the updated charging start time and / or updated charging end time of the sub-pixel unit may include starting charging the sub-pixel unit according to the updated charging start time of the sub-pixel unit, and / or ending charging the sub-pixel unit according to the updated charging end time of the sub-pixel unit.
[0080] In one embodiment, the Mux charging module further includes transistors corresponding one-to-one with each sub-pixel unit. The turn-on start time of the transistor is the start time of charging the corresponding sub-pixel unit, the turn-off time of the transistor is the end time of charging the corresponding sub-pixel unit, and the turn-on duration of the transistor is the charging duration of the corresponding sub-pixel unit. It should be noted that the type of transistor is not strictly limited; for example, transistors may include IGBTs (Insulated Gate Bipolar Transistors), MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors), etc.
[0081] Charging the sub-pixel unit according to the updated charging start time and / or updated charging end time may include turning on the transistor corresponding to the sub-pixel unit according to the updated charging start time to start charging the sub-pixel unit; and / or turning off the transistor corresponding to the sub-pixel unit according to the updated charging end time to end charging the sub-pixel unit.
[0082] like Figure 7 As shown, the Mux charging module 700 has a 1:3 circuit structure. The Mux charging module 700 includes a first sub-pixel unit 701, a second sub-pixel unit 702, a third sub-pixel unit 703, a first transistor 704, a second transistor 705, a third transistor 706, and a charging cable 707. The first transistor 704, the second transistor 705, and the third transistor 706 correspond one-to-one with the first sub-pixel unit 701, the second sub-pixel unit 702, and the third sub-pixel unit 703, respectively. The charging sequence of the sub-pixel units is: first sub-pixel unit 701, second sub-pixel unit 702, and third sub-pixel unit 703. The first sub-pixel unit 701, the second sub-pixel unit 702, and the third sub-pixel unit 703 correspond to the red channel, the green channel, and the blue channel, respectively.
[0083] by Figure 3 , 4 For example, if the reference charging time is T / 3 and the target charging time is T / 2, the charging time of the sub-pixel unit can be extended from T / 3 to T / 2. The updated charging start time and updated charging end time of the first sub-pixel unit are t=0 and t=T / 2, respectively; the updated charging start time and updated charging end time of the second sub-pixel unit are t=T / 4 and t=3T / 4, respectively; and the updated charging start time and updated charging end time of the third sub-pixel unit are t=T / 2 and t=T, respectively.
[0084] At t=0, the first transistor 704 is turned on to control the charging line 707 to start charging the first sub-pixel unit 701. At t=T / 4, the second transistor 705 is turned on to control the charging line 707 to start charging the second sub-pixel unit 702. At t=T / 2, the first transistor 704 is turned off to control the charging line 707 to stop charging the first sub-pixel unit 701, and the third transistor 706 is turned on to control the charging line 707 to start charging the third sub-pixel unit 703. At t=3T / 4, the second transistor 705 is turned off to control the charging line 707 to stop charging the second sub-pixel unit 702. At t=T, the third transistor 706 is turned off to control the charging line 707 to stop charging the third sub-pixel unit 703.
[0085] Therefore, in this method, the charging start time and / or charging end time of the sub-pixel unit can be updated based on the reference charging time and the target charging time, and the sub-pixel unit can be charged according to the updated charging start time and / or the updated charging end time of the sub-pixel unit.
[0086] Based on any of the above embodiments, such as Figure 8 As shown, step S102, which involves charging the sub-pixel unit according to the target charging duration, may include:
[0087] S801, update the charging voltage of any sub-pixel unit in each charging time period to the target charging voltage, wherein the total duration of each charging time period of any sub-pixel unit is the target charging duration.
[0088] S802, charging any sub-pixel unit within any charging time period according to the target charging voltage of any sub-pixel unit within any charging time period.
[0089] In embodiments of this disclosure, a sub-pixel unit can be divided into at least one charging time period, and the total duration of each charging time period of the sub-pixel unit is the target charging duration. It is understood that the charging time periods of different sub-pixel units may be different, or different sub-pixel units may correspond to the same charging time period. The charging voltage of a sub-pixel unit may be different in different charging time periods, and the charging voltage of different sub-pixel units may be the same in the same charging time period.
[0090] In the embodiments of this disclosure, the charging voltage of any sub-pixel unit can be updated to a target charging voltage during each charging time period. It should be noted that the target charging voltage is not overly limited. For example, the target charging voltage can be the voltage at which the display parameters of the sub-pixel unit reach a set parameter. The display parameters may include grayscale.
[0091] In one embodiment, obtaining the target charging voltage of any sub-pixel unit in each charging time period may include obtaining the charging capacitor and reference charging voltage of each sub-pixel unit, and determining the target charging voltage of any sub-pixel unit in each charging time period based on the charging capacitor, reference charging voltage, reference charging duration and target charging duration of each sub-pixel unit.
[0092] In one embodiment, the Mux charging module has a 1:3 circuit structure. The Mux charging module includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The charging order of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to the red channel, the green channel, and the blue channel, respectively.
[0093] The charging capacitors of the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are C1, C2, and C3, respectively. The charging currents of the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit before the update are f. 01 (t), f 02 (t), f 03 The updated charging currents for the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are f1(t), f2(t), and f3(t), respectively.
[0094] by Figure 3 For example, the total charging time of the Mux charging module is T, the reference charging time is T / 3, and the reference charging voltages for the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are respectively...
[0095] by Figure 3 , 4 For example, the total charging time of the Mux charging module is T, the reference charging time is T / 3, and the target charging time is T / 2. The charging time of the sub-pixel unit can be extended from T / 3 to T / 2. The Mux charging module includes a first charging time period from 0 to T / 4, a second charging time period from T / 4 to T / 2, a third charging time period from T / 2 to 3T / 4, and a fourth charging time period from 3T / 4 to T.
[0096] Charging any sub-pixel unit within any charging time period according to the target charging voltage of any sub-pixel unit within any charging time period may include charging the first sub-pixel unit within a first charging time period according to a first voltage a, charging the first sub-pixel unit and the second sub-pixel unit within a second charging time period according to the first voltage a, charging the second sub-pixel unit and the third sub-pixel unit within a third charging time period according to a second voltage b, and charging the third sub-pixel unit within a fourth charging time period according to a third voltage c.
[0097] The first voltage a, the second voltage b, and the third voltage c are obtained using the following formulas:
[0098]
[0099] by Figure 3 , 5 For example, the total charging time of the Mux charging module is T, the reference charging time is T / 3, and the target charging time is 2T / 3. The charging time of the sub-pixel unit can be extended from T / 3 to 2T / 3. The Mux charging module includes a first charging time period from 0 to T / 6, a second charging time period from T / 6 to T / 3, a third charging time period from T / 3 to 2T / 3, a fourth charging time period from 2T / 3 to 5T / 6, and a fifth charging time period from 5T / 6 to T.
[0100] Charging any sub-pixel unit according to the target charging voltage of any sub-pixel unit within any charging time period may include charging the first sub-pixel unit according to the first voltage a within a first charging time period, charging the first sub-pixel unit and the second sub-pixel unit according to the first voltage a within a second charging time period, charging the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit according to the first voltage a within a third charging time period, charging the second sub-pixel unit and the third sub-pixel unit according to the second voltage b within a fourth charging time period, and charging the third sub-pixel unit according to the third voltage c within a fifth charging time period.
[0101] The first voltage a, the second voltage b, and the third voltage c are obtained using the following formulas:
[0102]
[0103] Therefore, in this method, the charging voltage of any sub-pixel unit in each charging time period can be updated to the target charging voltage, and any sub-pixel unit can be charged in any charging time period according to the target charging voltage of any sub-pixel unit in any charging time period. This allows the charging voltage of the sub-pixel unit to be updated synchronously when the charging time of the sub-pixel unit is extended, thus meeting the charging requirements of the sub-pixel unit.
[0104] Figure 9 This is a block diagram illustrating a charging device based on a multiplexer (Mux) according to an exemplary embodiment. (Refer to...) Figure 9 The charging device 100 based on the multiplexer Mux according to this embodiment includes: an extension module 110 and a Mux charging module 120.
[0105] The extension module 110 is configured to recognize that the current set conditions are met and extend the charging time of the sub-pixel unit in the Mux charging module 120 to a target charging time, wherein the target charging time is less than the total charging time of the Mux charging module 120.
[0106] The Mux charging module 120 is configured to charge the sub-pixel unit according to the target charging duration.
[0107] In one embodiment of this disclosure, the extension module 110 is further configured to perform: obtaining a reference charging duration of the sub-pixel unit; and extending the charging duration of the sub-pixel unit from the reference charging duration to the target charging duration.
[0108] In one embodiment of this disclosure, the Mux charging module 120 includes: an update unit configured to update the charging start time and / or charging end time of the sub-pixel unit based on the reference charging time and the target charging time; and a charging unit configured to charge the sub-pixel unit according to the updated charging start time and / or the updated charging end time of the sub-pixel unit.
[0109] In one embodiment of this disclosure, the Mux charging module 120 includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit. The charging order of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to the red channel, the green channel, and the blue channel, respectively.
[0110] The update unit is further configured to perform: acquiring the time difference between the target charging duration and the reference charging duration; maintaining the charging start time of the first sub-pixel unit and delaying the charging end time of the first sub-pixel unit by the time difference; and / or, advancing the charging start time of the second sub-pixel unit by half of the time difference and delaying the charging end time of the second sub-pixel unit by half of the time difference; and / or, advancing the charging start time of the third sub-pixel unit by the time difference and maintaining the charging end time of the third sub-pixel unit.
[0111] In one embodiment of this disclosure, the Mux charging module 120 further includes transistors corresponding one-to-one with the sub-pixel units; the charging unit is further configured to perform: turning on the transistors corresponding to the sub-pixel units according to the updated charging start time of the sub-pixel units, and / or turning off the transistors corresponding to the sub-pixel units according to the updated charging end time of the sub-pixel units.
[0112] In one embodiment of this disclosure, the Mux charging module 120 is further configured to: update the charging voltage of any sub-pixel unit to a target charging voltage in each charging time period, wherein the total duration of each charging time period of any sub-pixel unit is the target charging duration; and charge any sub-pixel unit in any charging time period according to the target charging voltage of any sub-pixel unit in any charging time period.
[0113] In one embodiment of this disclosure, the charging device 100 based on a multiplexer (Mux) further includes: an acquisition module configured to acquire the charging capacitance and reference charging voltage of each sub-pixel unit; and a determination module configured to determine the target charging voltage of any sub-pixel unit in each charging time period based on the charging capacitance, the reference charging voltage, the reference charging duration, and the target charging duration of each sub-pixel unit.
[0114] In one embodiment of this disclosure, the setting conditions include increasing the refresh rate of the display device, and / or shortening the charging time of the sub-pixel unit, and / or reducing the charging capacity of the Mux charging module 120.
[0115] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.
[0116] The charging device based on a multiplexer (Mux) provided in the embodiments of this disclosure can identify when set conditions are met, extend the charging time of the sub-pixel units in the Mux charging module to a target charging time, and charge the sub-pixel units according to the target charging time. Therefore, when the set conditions are met, the charging time of the sub-pixel units can be extended, satisfying their charging needs and solving the problem of insufficient charging of sub-pixel units in related technologies, thereby ensuring the display effect of the display device.
[0117] To achieve the above embodiments, such as Figure 10 As shown, this disclosure also proposes a display device 200, including the charging device 100 based on the multiplexer Mux described above.
[0118] The display device of this disclosure can identify when a set condition is met, extend the charging time of the sub-pixel unit in the Mux charging module to a target charging time, and charge the sub-pixel unit according to the target charging time. Therefore, when the set condition is met, the charging time of the sub-pixel unit can be extended, satisfying the charging needs of the sub-pixel unit, solving the problem of insufficient charging of sub-pixel units in related technologies, and thus ensuring the display effect of the display device.
[0119] Figure 11 This is a block diagram illustrating an electronic device 300 according to an exemplary embodiment.
[0120] like Figure 11 As shown, the above-mentioned electronic device 300 includes:
[0121] The memory 310 and processor 320 are connected by a bus 330, which connects different components (including the memory 310 and the processor 320). The memory 310 stores a computer program, which, when executed by the processor 320, implements the charging method based on a multiplexer (Mux) as described in this embodiment of the present disclosure.
[0122] Bus 330 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.
[0123] Electronic device 300 typically includes a variety of electronic device readable media. These media can be any available media that can be accessed by electronic device 300, including volatile and non-volatile media, removable and non-removable media.
[0124] Memory 310 may also include computer system readable media in the form of volatile memory, such as random access memory (RAM) 340 and / or cache memory 350. Electronic device 300 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 360 can be used to read and write non-removable, non-volatile magnetic media (… Figure 11 Not shown; usually referred to as a "hard drive"). Although Figure 11Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 330 via one or more data media interfaces. Memory 310 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this disclosure.
[0125] A program / utility 380 having a set (at least one) of program modules 370 may be stored, for example, in memory 310. Such program modules 370 include—but are not limited to—an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 370 typically perform the functions and / or methods described in the embodiments of this disclosure.
[0126] Electronic device 300 can also communicate with one or more external devices 390 (e.g., keyboard, pointing device, display 391, etc.), and with one or more devices that enable a user to interact with the electronic device 300, and / or with any device that enables the electronic device 300 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed through input / output (I / O) interface 392. Furthermore, electronic device 300 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) through network adapter 393. Figure 11 As shown, network adapter 393 communicates with other modules of electronic device 300 via bus 330. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with electronic device 300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.
[0127] The processor 320 executes various functional applications and data processing by running programs stored in the memory 310.
[0128] It should be noted that the implementation process and technical principles of the electronic device in this embodiment are explained in the foregoing description of the charging method based on the multiplexer Mux in this disclosure embodiment, and will not be repeated here.
[0129] The electronic device provided in this disclosure can execute the charging method based on a multiplexer (Mux) as described above. It can identify when set conditions are met, extend the charging time of the sub-pixel units in the Mux charging module to a target charging time, and charge the sub-pixel units according to the target charging time. Therefore, when the set conditions are met, the charging time of the sub-pixel units can be extended, satisfying their charging needs and solving the problem of insufficient charging of sub-pixel units in related technologies, thereby ensuring the display effect of the display device.
[0130] To implement the above embodiments, this disclosure also proposes a computer-readable storage medium.
[0131] When the instructions in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device is able to perform the charging method based on the multiplexer (Mux) as described above. Optionally, the computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, or optical data storage device, etc.
[0132] To implement the above embodiments, this disclosure also provides a computer program product, including a computer program that, when executed by a processor of an electronic device, implements the charging method based on a multiplexer (Mux) as described above.
[0133] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.
[0134] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. A method of charging based on a multiplexer (Mux), characterized by, The method comprises: identifying that a set condition is met, and extending a charging time length of a sub-pixel unit in a Mux charging module to a target charging time length, wherein the target charging time length is less than a total charging time length of the Mux charging module, and the set condition comprises that a refresh frequency of a display device is increased, and / or the charging time length of the sub-pixel unit is shortened, and / or a charging capability of the Mux charging module is reduced; charging the sub-pixel unit according to the target charging time length, wherein the method comprises: updating a charging voltage of any sub-pixel unit in each charging time period to a target charging voltage, wherein a total time length of each charging time period of the any sub-pixel unit is the target charging time length; charging the any sub-pixel unit in the any charging time period according to the target charging voltage of the any sub-pixel unit in the any charging time period; wherein a charging capacitance and a reference charging voltage of each sub-pixel unit are obtained; determining the target charging voltage of the any sub-pixel unit in each charging time period according to the charging capacitance, the reference charging voltage, a pre-set reference charging time length and the target charging time length of each sub-pixel unit.
2. The method of claim 1, wherein, The method of extending the charging time length of the sub-pixel unit in the Mux charging module to the target charging time length comprises: obtaining a reference charging time length of the sub-pixel unit; extending the charging time length of the sub-pixel unit from the reference charging time length to the target charging time length.
3. The method of claim 2, wherein, The method of charging the sub-pixel unit according to the target charging time length comprises: updating a charging start time and / or a charging end time of the sub-pixel unit based on the reference charging time length and the target charging time length; charging the sub-pixel unit according to the updated charging start time and / or the updated charging end time of the sub-pixel unit.
4. The method of claim 3, wherein, The Mux charging module comprises a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, and the charging sequence of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit, and the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit correspond to a red channel, a green channel and a blue channel respectively. The method of updating the charging start time and / or the charging end time of the sub-pixel unit based on the reference charging time length and the target charging time length comprises: obtaining a time difference between the target charging time length and the reference charging time length; maintaining the charging start time of the first sub-pixel unit, and delaying the charging end time of the first sub-pixel unit by the time difference; and / or, advancing the charging start time of the second sub-pixel unit by half of the time difference, and delaying the charging end time of the second sub-pixel unit by half of the time difference; and / or, advancing the charging start time of the third sub-pixel unit by the time difference, and maintaining the charging end time of the third sub-pixel unit.
5. The method of claim 3, wherein, The Mux charging module further comprises a transistor corresponding to each sub-pixel unit. The charging start time and / or the updated charging end time of the sub-pixel unit are used to charge the sub-pixel unit, including: The updated charging start time of the sub-pixel unit is used to drive the conduction of the transistor corresponding to the sub-pixel unit, and / or the updated charging end time of the sub-pixel unit is used to close the conduction of the transistor corresponding to the sub-pixel unit.
6. A charging device based on a multiplexer (Mux), characterized in that, Including: The extension module is configured to perform the following steps: identifying that a set condition is met, and extending the charging time of the sub-pixel unit in the Mux charging module to a target charging time, wherein the target charging time is less than the total charging time of the Mux charging module, and the set condition includes that the refresh frequency of the display device is increased, and / or the charging time of the sub-pixel unit is shortened, and / or the charging capacity of the Mux charging module is reduced; The Mux charging module is configured to perform the following steps: charging the sub-pixel unit according to the target charging time. The Mux charging module is further configured to perform the following steps: The charging voltage of any sub-pixel unit in each charging time period is updated to a target charging voltage, wherein the total time length of each charging time period of the any sub-pixel unit is the target charging time; The any sub-pixel unit is charged in any charging time period according to the target charging voltage of the any sub-pixel unit in the any charging time period; The acquisition module is configured to perform the following steps: acquiring the charging capacitance and the reference charging voltage of each sub-pixel unit; The determination module is configured to perform the following steps: determining the target charging voltage of any sub-pixel unit in each charging time period according to the charging capacitance, the reference charging voltage, a pre-set reference charging time, and the target charging time of each sub-pixel unit.
7. The apparatus of claim 6, wherein, The extension module is further configured to perform the following steps: Acquiring the reference charging time of the sub-pixel unit; Extending the charging time of the sub-pixel unit from the reference charging time to the target charging time.
8. The apparatus of claim 7, wherein, The Mux charging module includes: The update unit is configured to perform the following steps: updating the charging start time and / or the charging end time of the sub-pixel unit based on the reference charging time and the target charging time; The charging unit is configured to perform the following steps: charging the sub-pixel unit according to the updated charging start time and / or the updated charging end time of the sub-pixel unit.
9. The apparatus of claim 8, wherein, The Mux charging module includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit, the charging sequence of the sub-pixel units is the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit, and the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit correspond to a red channel, a green channel, and a blue channel, respectively; The update unit is further configured to perform the following steps: Acquiring a time difference between the target charging time and the reference charging time; Maintaining the charging start time of the first sub-pixel unit, and delaying the charging end time of the first sub-pixel unit by the time difference; and / or, the charging start time of the second sub-pixel unit is advanced by one half of the time difference, and the charging end time of the second sub-pixel unit is delayed by one half of the time difference; and / or the charging start time of the third sub-pixel unit is advanced by the time difference, and the charging end time of the third sub-pixel unit is maintained.
10. The apparatus of claim 8, wherein, The Mux charging module further comprises a transistor corresponding to each sub-pixel unit; The charging unit is further configured to perform: According to the updated charging start time of the sub-pixel unit, the transistor corresponding to the sub-pixel unit is turned on, and / or according to the updated charging end time of the sub-pixel unit, the transistor corresponding to the sub-pixel unit is turned off.
11. A display device, characterized by comprising: The Mux-based charging device comprises: The Mux-based charging device according to any one of claims 6-10.
12. An electronic device, comprising: The Mux-based charging device comprises: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the instructions to implement the Mux-based charging method according to any one of claims 1-5.
13. A computer-readable storage medium, characterized in that, When the instructions in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device can perform the Mux-based charging method according to any one of claims 1-5.
Citation Information
Patent Citations
Multiplexing display driving circuit
CN108182915A