Display apparatus and display control method

Abstract

The invention discloses a display device and a display control method. The display device comprises a power supply system, a detector and a source electrode driving chip. The power supply system is used for providing common voltage and data driving voltage for the source electrode driving chip; the detector is used for detecting whether multiple frames of continuous black data exist in the display data output by the source electrode driving chip or not, and sending a display control signal to the source electrode driving chip when the multiple frames of continuous black data exist; and the source electrode driving chip is used for being in short circuit to the common voltage according to the display control signal when the display device displays the first frame of black data, and accessing the data driving voltage according to the display control signal when the display device displays the last frame of black data. According to the display device, the dynamic power consumption of the source electrode driving chip is reduced through control of the newly added black data power-saving mode, so that the energy consumption of the display device is reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device and a display control method. Background Art

[0002] With the development of display technology, users have higher and higher requirements for the energy consumption of display devices. Reducing the energy consumption of display devices helps to improve product competitiveness, promote environmental protection, extend service life, and improve power efficiency. Therefore, low-power display devices have become an important development direction of display technology. How to reduce the energy consumption of display devices is a topic that the industry has been committed to researching. Summary of the invention

[0003] The embodiments of the present application provide a display device and a display control method, which reduce the dynamic power consumption of a source driver chip by adding control of a black data power saving mode, thereby reducing the energy consumption of the display device.

[0004] The embodiment of the present application provides a display device, which includes a power supply system, a detector and a source driver chip; wherein:

[0005] The power supply system is used to provide a common voltage and a data driving voltage for the source driver chip;

[0006] The detector is used to detect whether there are multiple frames of continuous black data in the display data output by the source driver chip, and send a display control signal to the source driver chip when there are multiple frames of continuous black data;

[0007] The source driver chip is used to short-circuit to the common voltage according to the display control signal when the display device displays the first frame of black data, and to connect to the data drive voltage according to the display control signal when the display device displays the last frame of black data.

[0008] Accordingly, an embodiment of the present application provides a display control method, which is applied to a display device, wherein the display device includes a power supply system, a detector, and a source driver chip; the display control method includes:

[0009] The detector detects whether there are multiple frames of continuous black data in the display data output by the source driver chip, and sends a display control signal to the source driver chip when there are multiple frames of continuous black data;

[0010] When the display device displays the first frame of black data, the source driver chip is short-circuited to the common voltage provided by the power supply system according to the display control signal, and when the display device displays the last frame of black data, the source driver chip is connected to the data driving voltage provided by the power supply system according to the display control signal.

[0011] In summary, the embodiment of the present application adds the control of the black data power saving mode. If it is detected that there is continuous black data in the display data output by the source driver chip, a display control signal is sent to the source driver chip to indicate to the source driver chip that the black data power saving mode is turned on in the first frame of black data, and to indicate to the source driver chip that the black data power saving mode is turned off in the last frame of black data. Based on the display control signal, the source driver chip is short-circuited to the common voltage provided by the power supply system when the display device displays the first frame of black data, so as to save the power consumption of the source driver chip. In addition, based on the display control signal, the source driver chip releases the short circuit with the common voltage when the display device displays the last frame of black data, and connects to the data drive voltage provided by the power supply system to restore the normal display of the display screen. The embodiment of the present application reduces the dynamic power consumption of the source driver chip by adding the control of the black data power saving mode, thereby reducing the energy consumption of the display device. Moreover, the embodiment of the present application can be implemented based on the existing display device, without adding new devices in the display device, and has high compatibility with the existing display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of a display device provided in an embodiment of the present application;

[0013] Figure 2 is a schematic diagram of at least part of the content contained in an image frame provided in an embodiment of the present application;

[0014] Figure 3 is a schematic diagram of row configuration information provided by an embodiment of the present application;

[0015] Figure 4 It is a schematic diagram of the meaning of an instruction provided in an embodiment of the present application;

[0016] Figure 5 is a schematic diagram of a source driver chip provided in an embodiment of the present application;

[0017] Figure 6 is a schematic diagram of another source driver chip provided in an embodiment of the present application;

[0018] Figure 7 is a flow chart of a display control method provided by an embodiment of the present application;

[0019] Figure 8It is a flowchart of another display control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The described technical solutions are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.

[0021] In addition, the "plurality" in the embodiments of the present application refers to two or more. The "first" and "second" in the embodiments of the present application are used to distinguish different technical features, and do not indicate any order, quantity or importance.

[0022] The various embodiments provided in this application are similar, and features in different embodiments may be combined with each other.

[0023] The order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0024] See also Figure 1 , Figure 1 is a schematic diagram of a display device provided in an embodiment of the present application. Figure 1 As shown, the display device 100 includes a power system 110 , a detector 120 and a source driver chip 130 .

[0025] The power system 110 is used to provide a common voltage and a data driving voltage to the source driver chip 130 .

[0026] The detector 120 is used to detect whether there are multiple frames of continuous black data in the display data output by the source driver chip 130 , and send a display control signal to the source driver chip 130 when there are multiple frames of continuous black data.

[0027] The source driver chip 130 is used to short-circuit to the common voltage provided by the power system 110 according to the display control signal when the display device 100 displays the first frame of black data, and to connect to the data driving voltage provided by the power system 110 according to the display control signal when the display device 100 displays the last frame of black data.

[0028] The source driver chip 130 is also called Source IC (Source Integrated Circuit) or DriverIC. The source driver chip 130 includes a data channel for transmitting data signals. Usually, a source driver chip 130 has multiple data channels, and each data channel can provide data for a certain number of sub-pixels. Since the number of data channels of a source driver chip 130 is limited, a display device 100 is usually driven by multiple source driver chips 130, such as the number of source driver chips 130 ranging from 4 to 24. Optionally, the number of source driver chips 130 is related to the lateral resolution of the display device 100 and the number of data channels of a single source driver chip 130. For example, the number of source driver chips 130 is equal to the quotient between 3 times the lateral resolution of the display device 100 and the number of data channels of the source driver chip 130. For example, if the resolution of the display device 100 is 3840×2160 and the horizontal resolution is 3840, a total of 11520 (3840×3) data channels are used; if a single source driver chip 130 can drive 960 data channels, the display device 100 needs to be driven by 12 source driver chips 130. Among them, the data channel index value of the first source driver chip 130 is 1 to 960, the data channel index value of the second source driver chip 130 is 961 to 1920, and the data channel index values ​​corresponding to the remaining source driver chips 130 are similar. The sub-pixels driven by a single source driver chip 130 can be located in multiple rows of the display screen.

[0029] The detector 120 may be a timing controller (TCON) or a system on chip (SOC). The detector 120 may detect data transmitted in the data channel of any one or more source driver chips 130 to detect whether there are multiple frames of continuous black data, such as at least two frames of continuous black data, in the display data output by the source driver chip 130. In the embodiment of the present application, if the detector 120 detects that there are multiple frames of continuous black data in the display content of the source driver chip 130, a display control signal is sent to the source driver chip 130 so that the source driver chip 130 turns on or off the black data power saving mode (Black Data PowerDown, BDPD) according to the display control signal. When the display device 100 displays the first frame of black data in multiple frames of black data, the source driver chip 130 turns on the black data power saving mode according to the display control signal, and shorts the output of the source driver chip 130 to the common voltage provided by the power supply system 110 to save the power consumption of the source driver chip 130. When the display device 100 displays the last frame of black data among multiple frames of black data, the source driver chip 130 releases the short circuit between the output of the source driver chip 130 and the common voltage, and controls the source driver chip 130 to access the data driving voltage provided by the power supply system 110, so as to restore the normal display of the display screen in time. The common voltage is usually lower than the data driving voltage.

[0030] The turning on or off of the black data power saving mode can be indicated in the row configuration information (Line Config). In some embodiments, the detector 120 is also used to write the first bit value combination into the preset bit combination of the row configuration information corresponding to the first frame of black data when it is detected that there are multiple frames of continuous black data in the display data output by the source driver chip 130, and write the second bit value combination into the preset bit combination of the row configuration information corresponding to the last frame of black data, so as to send a display control signal to the source driver chip 130. Among them, the first bit value combination is different from the second bit value combination. Based on this, the source driver chip 130 is also used to: when the first bit value combination is identified in the preset bit combination of the row configuration information, short-circuit to the common voltage provided by the power supply system 110; when the second bit value combination is identified in the preset bit combination of the row configuration information, connect to the data drive voltage provided by the power supply system 110.

[0031] If the detector 120 detects that there are multiple frames of continuous black data in the display content of the source driver chip 130, the black data power saving mode is turned on in the row configuration information corresponding to the first frame of black data, and the black data power saving mode is turned off in the row configuration information corresponding to the last frame of black data. In the embodiment of the present application, the black data power saving mode is configured in the preset bit combination of the row configuration information. When the black data power saving mode is turned on, the first preset bit value combination can be written into the preset bit combination of the row configuration information, and when the black data power saving mode is turned off, the second preset bit value combination can be written into the preset bit combination of the row configuration information. That is, in the embodiment of the present application, the first bit value combination is written into the preset bit combination of the row configuration information corresponding to the first frame of black data, and the second bit value combination is written into the preset bit combination of the row configuration information corresponding to the last frame of black data. Among them, the first bit value combination and the second bit value combination are different to indicate whether the black data power saving mode is turned on or off.

[0032] For example, Figure 2 is a schematic diagram of at least part of the content contained in an image frame provided in an embodiment of the present application, Figure 3 is a schematic diagram of line configuration information (Line Config) corresponding to each line of data in an image frame provided by an embodiment of the present application. The meaning of each instruction in the image frame and the line configuration information is as follows: Figure 4 As shown. Figure 3 As shown, the row configuration information corresponding to each row of data in the image frame includes a 1T CMD bit combination, a 1T Header bit combination, a 1T PWRC bit combination, a 1T BDPD bit combination, and a 3T Reserve bit combination. Among them, the 1T BDPD bit combination is located at the 4T of the row configuration information, and the BDPD bit combination is the above-mentioned preset bit combination, that is, the preset bit combination is located at the 4T of the row configuration information. It should be understood that the 1T described in the embodiment of the present application refers to a data packet.

[0033] The number of bits corresponding to the first bit value combination, the number of bits corresponding to the second bit value combination, and the number of bits of the preset bit combination are the same. The embodiment of the present application does not limit the number of bits of the preset bit combination, the specific value of the first bit value combination, and the specific value of the second bit value combination. In actual applications, they can be flexibly set according to needs. For example, Figure 4As shown, the preset bit combination includes 9 bits. In some embodiments, the first bit value combination may be 111111111, and the second bit value combination may be 000000000; or, the first bit value combination may be 111100000, and the second bit value combination may be 000000000; or, the first bit value combination may be 100000000, and the second bit value combination may be 011111111. In practical applications, the first bit value combination and the second bit value combination may be set arbitrarily, but the first bit value combination and the second bit value combination must be different.

[0034] In some embodiments, the detector 120 is further configured to write the first bit value combination into a preset bit combination of the first row configuration information. The first row configuration information is the row configuration information corresponding to the first row of data in the first frame of black data. That is, in the embodiment of the present application, for multiple frames of continuous black data, the black data power saving mode is enabled in the row configuration information corresponding to the first row of data in the first frame of black data.

[0035] In some embodiments, the detector 120 is further configured to write the second bit value combination into the preset bit combination of the second row configuration information. The second row configuration information is the row configuration information corresponding to the last row of data in the last frame of black data. That is, in the embodiment of the present application, for multiple frames of continuous black data, the black data power saving mode is turned off in the row configuration information corresponding to the last row of data in the last frame of black data.

[0036] In some embodiments, the detector 120 is further used to write a third bit value combination into a preset bit combination of the third row configuration information. Among them, the third data corresponding to the third row configuration information in multiple frames of continuous black data is located between the second data corresponding to the second row configuration information and the first data corresponding to the first row configuration information, that is, the black data corresponding to the third row configuration information is located between the black data corresponding to the second row configuration information and the black data corresponding to the first row configuration information. In the embodiment of the present application, for multiple frames of continuous black data, in addition to the row configuration information corresponding to the first row data in the first frame of black data and the row configuration information corresponding to the last row data in the last frame of black data, the third bit value combination can be written into the preset bit combination of other row configuration information to indicate that the black data power saving mode remains turned on. Since the third bit value combination indicates that the black data power saving mode is still in the turned-on state, the third bit value combination should be different from the second bit value combination. Optionally, the third bit value combination is the same as the first bit value combination; or, the third bit value combination is different from the first bit value combination. For example, the first bit value combination may be 111111111, the second bit value combination may be 000000000, and the third bit value combination may be 11110000; or, the first bit value combination and the third bit value combination may both be 111111111, and the second bit value combination may be 000000000.

[0037] Exemplarily, the detector 120 detects that there are N frames of continuous black data in all data channels of a certain source driver chip 130, where N is a positive integer; the detector 120 writes a first bit value combination in a preset bit combination of row configuration information corresponding to the first row of data in the first frame of black data of the N frames of black data to indicate that the black data power saving mode is turned on; the detector 120 writes a second bit value combination in a preset bit combination of row configuration information corresponding to the last row of data in the last frame of black data of the N frames of black data to indicate that the black data power saving mode is turned off; the detector 120 writes a third bit value combination in a preset bit combination of other row configuration information of the N frames of black data to indicate that the black data power saving mode remains turned on. The third bit value combination is different from the second bit value combination, and the third bit value combination is the same as or different from the first bit value combination.

[0038] The source driver chip 130 continuously identifies the preset bit combination of the row configuration information. If the first bit value combination is identified in the preset bit combination of the row configuration information, it is confirmed that the black data power saving mode is turned on, and the output of the source driver chip 130 is short-circuited to the common voltage provided by the power supply system 110. If the second bit value combination is identified in the preset bit combination of the row configuration information, it is confirmed that the black data power saving mode is turned off, the short circuit between the output of the source driver chip 130 and the common voltage is released, and the source driver chip 130 is controlled to access the data driving voltage provided by the power supply system 110. If the third bit value combination is identified in the preset bit combination of the row configuration information, it is confirmed that the black data power saving mode remains on, and the short circuit between the output of the source driver chip 130 and the common voltage is maintained.

[0039] In some embodiments, Figure 1 As shown, the display device 100 further includes a display panel 140. Figure 5 As shown, the source driver chip 130 includes a logic control module 510, a switch module 520, a voltage amplifier module 530 and a multiplexing module 540. The switch module 520 is connected to the logic control module 510, the power system 110 and the voltage amplifier module 530, the voltage amplifier module 530 is also connected to the multiplexing module 540, and the multiplexing module 540 is also connected to the power system 110. For example, Figure 5 As shown, the switch module 520 includes a control electrode connected to the logic control module 510, a first electrode connected to the data driving voltage VAA provided by the power supply system 110, and a second electrode connected to the first end of the voltage amplification module 530; the voltage amplification module 530 includes a first end connected to the second electrode of the switch module 520, a second end connected to the input voltage VIN, and a third end connected to the multiplexing module 540; the multiplexing module 540 includes a first input end connected to the third end of the voltage amplification module 530, a second input end connected to the common voltage VCOM provided by the power supply system 110, and an output end connected to the display panel 140.

[0040] Based on this, the logic control module 510 is used to control the switch module 520 to be turned off and control the multiplexing module 540 to be short-circuited to the common voltage VCOM provided by the power supply system 110 when the first bit value combination is identified in the preset bit combination of the row configuration information; when the second bit value combination is identified in the preset bit combination of the row configuration information, the switch module 520 is controlled to be turned on so that the voltage amplification module 530 is connected to the data drive voltage VAA provided by the power supply system 110; when the third bit value combination is identified in the preset bit combination of the row configuration information, the switch module 520 is kept turned off and the short circuit between the multiplexing module 540 and the common voltage VCOM is maintained. Figure 6As shown, the switch module 520 may include at least one transistor, such as a P-type thin film transistor or an N-type thin film transistor. When the switch module 520 is turned on, the data drive voltage VAA can flow into the voltage amplification module 530, and the multiplexing module 540 releases the short circuit with the common voltage VCOM; when the switch module 520 is turned off, the data drive voltage VAA cannot flow into the voltage amplification module 530, and the multiplexing module 540 is short-circuited with the common voltage VCOM. In addition, Figure 6 As shown, the voltage amplification module 530 may include multiple amplifiers, and each amplifier is connected to the multiplexing module 540 .

[0041] In some embodiments, Figure 5 As shown, the source driver chip 130 further includes a gamma voltage module 550 and a digital-to-analog converter (DAC) module 560. The gamma voltage module 550 is connected to the logic control module 510 and the digital-to-analog converter module 560, and the digital-to-analog converter module 560 is also connected to the multiplexing module 540. Figure 5 As shown, the gamma voltage module 550 includes a first end connected to the logic control module 510, and a second end connected to the first end of the digital-to-analog conversion module 560; the digital-to-analog conversion module 560 includes a first end connected to the second end of the gamma voltage module 550, and a second end connected to the multiplexing module 540.

[0042] Based on this, the logic control module 510 is further used to turn off the gamma voltage module 550 when a first bit value combination is identified in the preset bit combination of the row configuration information; turn on the gamma voltage module 550 when a second bit value combination is identified in the preset bit combination of the row configuration information; and keep the gamma voltage module 550 turned off when a third bit value combination is identified in the preset bit combination of the row configuration information. The digital-to-analog conversion module 560 converts the digital signal into an analog signal, and the gamma voltage module 550 provides a reference voltage for the digital-to-analog conversion module 560.

[0043] In summary, the embodiment of the present application adds control of the black data power saving mode. If it is detected that there is continuous black data in the display data output by the source driver chip, a display control signal is sent to the source driver chip to indicate to the source driver chip that the black data power saving mode is turned on in the first frame of black data, and to indicate to the source driver chip that the black data power saving mode is turned off in the last frame of black data. Based on the display control signal, the source driver chip is short-circuited to the common voltage provided by the power supply system when the display device displays the first frame of black data to save the power consumption of the source driver chip; in addition, based on the display control signal, the source driver chip releases the short circuit with the common voltage when the display device displays the last frame of black data, and connects to the data driving voltage provided by the power supply system to restore the normal display of the display screen. The embodiment of the present application reduces the dynamic power consumption of the source driver chip by adding control of the black data power saving mode, thereby reducing the energy consumption of the display device; and the embodiment of the present application can be implemented based on the existing display device, without adding new devices in the display device, and has high compatibility with the existing display device.

[0044] In the embodiment of the present application, a black data power saving mode is configured in a preset bit combination of row configuration information. If continuous black data is detected in all channels of the source driver chip, a first bit value combination is written into a preset bit combination of row configuration information corresponding to the first frame of black data, such as writing the first bit value combination into a preset bit combination of row configuration information corresponding to the first row of data in the first frame of black data, to indicate to the source driver chip that the black data power saving mode is turned on; and a second bit value combination is written into a preset bit combination of row configuration information corresponding to the last frame of black data, such as writing the second bit value combination into a preset bit combination of row configuration information corresponding to the last row of data in the last frame of black data, to indicate to the source driver chip that the black data power saving mode is turned off. Based on the identification of the first bit value combination, the source driver chip is short-circuited to the common voltage provided by the power supply system to save the power consumption of the source driver chip; based on the identification of the second bit value combination, the source driver chip releases the short-circuit with the common voltage and connects to the data drive voltage provided by the power supply system to restore the normal display of the display screen.

[0045] See also Figure 7 , Figure 7 1 is a flow chart of a display control method provided by an embodiment of the present application. The display control method can be applied to the above-mentioned display device, which includes a power supply system, a detector, and a source driver chip. Figure 7 As shown, the display control method may include the following steps:

[0046] Step 710: the detector detects whether there are multiple frames of continuous black data in the display data output by the source driver chip, and sends a display control signal to the source driver chip when there are multiple frames of continuous black data;

[0047] Step 720: When the display device displays the first frame of black data, the source driver chip is short-circuited to the common voltage provided by the power system according to the display control signal, and when the display device displays the last frame of black data, the source driver chip is connected to the data drive voltage provided by the power system according to the display control signal.

[0048] In some embodiments, the above-mentioned step 710 includes: when the detector detects that there are multiple frames of continuous black data in the display data output by the source driver chip, the detector writes the first bit value combination into the preset bit combination of the row configuration information corresponding to the first frame of black data, and writes the second bit value combination into the preset bit combination of the row configuration information corresponding to the last frame of black data; wherein the first bit value combination is different from the second bit value combination.

[0049] In some embodiments, the above step 720 includes: when a first bit value combination is identified in the preset bit combination of the row configuration information, the source driver chip is short-circuited to the common voltage provided by the power supply system; and when a second bit value combination is identified in the preset bit combination of the row configuration information, the source driver chip is connected to the data drive voltage provided by the power supply system.

[0050] In some embodiments, the above step 710 includes: the detector writes the first bit value combination into the preset bit combination of the first row configuration information; wherein the first row configuration information is the row configuration information corresponding to the first row data in the first frame of black data.

[0051] In some embodiments, the above step 710 includes: the detector writes the second bit value combination into the preset bit combination of the second row configuration information; wherein the second row configuration information is the row configuration information corresponding to the last row of data in the last frame of black data.

[0052] In some embodiments, the above-mentioned display control method also includes: the detector writes a third bit value combination into a preset bit combination of the third row configuration information; wherein, the third data corresponding to the third row configuration information in multiple frames of continuous black data is located between the second data corresponding to the second row configuration information and the first data corresponding to the first row configuration information; the third bit value combination is different from the second bit value combination; the third bit value combination is the same as or different from the first bit value combination.

[0053] In some embodiments, the display control method further includes: when the source driver chip identifies a third bit value combination in the preset bit combination of the row configuration information, the source driver chip maintains a short circuit with the common voltage.

[0054] In some embodiments, the source driver chip includes a logic control module, a switch module, a voltage amplifier module and a multiplexing module; wherein the switch module is connected to the logic control module, the power supply system and the voltage amplifier module, the voltage amplifier module is also connected to the multiplexing module, and the multiplexing module is also connected to the power supply system. The above step 720 includes: when the logic control module identifies a first bit value combination in the preset bit combination of the row configuration information, the logic control module controls the switch module to turn off, and controls the multiplexing module to short-circuit to the common voltage; when the logic control module identifies a second bit value combination in the preset bit combination of the row configuration information, the logic control module controls the switch module to turn on, so that the voltage amplifier module is connected to the data driving voltage.

[0055] In some embodiments, the source driver chip further includes a gamma voltage module, wherein the gamma voltage module is connected to the logic control module. The above step 720 further includes: when the logic control module identifies a first bit value combination in the preset bit combination of the row configuration information, the logic control module turns off the gamma voltage module; when the logic control module identifies a second bit value combination in the preset bit combination of the row configuration information, the logic control module turns on the gamma voltage module.

[0056] In summary, the embodiment of the present application adds control of the black data power saving mode. If it is detected that there is continuous black data in the display data output by the source driver chip, a display control signal is sent to the source driver chip to indicate to the source driver chip that the black data power saving mode is turned on in the first frame of black data, and to indicate to the source driver chip that the black data power saving mode is turned off in the last frame of black data. Based on the display control signal, the source driver chip is short-circuited to the common voltage provided by the power supply system when the display device displays the first frame of black data to save the power consumption of the source driver chip; in addition, based on the display control signal, the source driver chip releases the short circuit with the common voltage when the display device displays the last frame of black data, and connects to the data driving voltage provided by the power supply system to restore the normal display of the display screen. The embodiment of the present application reduces the dynamic power consumption of the source driver chip by adding control of the black data power saving mode, thereby reducing the energy consumption of the display device; and the embodiment of the present application can be implemented based on the existing display device, without adding new devices in the display device, and has high compatibility with the existing display device.

[0057] In the embodiment of the present application, a black data power saving mode is configured in a preset bit combination of row configuration information. If continuous black data is detected in all channels of the source driver chip, a first bit value combination is written into a preset bit combination of row configuration information corresponding to the first frame of black data, such as writing the first bit value combination into a preset bit combination of row configuration information corresponding to the first row of data in the first frame of black data, to indicate to the source driver chip that the black data power saving mode is turned on; and a second bit value combination is written into a preset bit combination of row configuration information corresponding to the last frame of black data, such as writing the second bit value combination into a preset bit combination of row configuration information corresponding to the last row of data in the last frame of black data, to indicate to the source driver chip that the black data power saving mode is turned off. Based on the identification of the first bit value combination, the source driver chip is short-circuited to the common voltage provided by the power supply system to save the power consumption of the source driver chip; based on the identification of the second bit value combination, the source driver chip releases the short-circuit with the common voltage and connects to the data drive voltage provided by the power supply system to restore the normal display of the display screen.

[0058] Below, the display control method provided in the embodiment of the present application is introduced and explained with an example.

[0059] See also Figure 8 , Figure 8 FIG. 1 is a flow chart of another display control method provided by an embodiment of the present application. Figure 8 As shown, the display control method may include the following steps 801 to 808.

[0060] Step 801: TCON / SOC detects whether there are N frames of continuous black data in the display content output by the source driver chip, where N is a positive integer. If it is detected that there are N frames of continuous black data, then step 802 is executed, otherwise, step 801 is continued.

[0061] Step 802: TCON / SOC writes the first bit value combination into the preset bit combination of the row configuration information corresponding to the first row of data in the first frame of black data, and writes the second bit value combination into the preset bit combination of the row configuration information corresponding to the last row of data in the last frame of black data.

[0062] Step 803: The logic control module in the source driver chip identifies whether the preset bit combination of the row configuration information is the first bit value combination. If yes, execute step 804, otherwise continue to execute step 803.

[0063] Step 804: The logic control module in the source driver chip controls the switch module to turn off, and turns off the gamma voltage module.

[0064] Step 805: The multiplexing module in the source driver chip is short-circuited to a common voltage.

[0065] Step 806: The logic control module in the source driver chip identifies whether the preset bit combination of the row configuration information is the second bit value combination. If yes, execute step 807, otherwise continue to execute step 806.

[0066] Step 807: The logic control module in the source driver chip controls the switch module to be turned on, and turns on the gamma voltage module.

[0067] Step 808: the voltage amplification module in the source driver chip is connected to the data drive voltage, and the multiplexing module is released from the short circuit with the common voltage.

[0068] It should be understood that the above-mentioned display control method is a method embodiment corresponding to the above-mentioned display device. For a detailed description of each step in the display control method and its beneficial effects, please refer to the embodiment of the above-mentioned display device, which will not be elaborated here.

[0069] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] The above is a detailed introduction to a display device and a display control method provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display device, characterized in that: The display device includes a power supply system, a detector and a source driver chip; wherein, The power supply system is used to provide a common voltage and a data driving voltage for the source driver chip; The detector is used to detect whether there are multiple frames of continuous black data in the display data output by the source driver chip, and send a display control signal to the source driver chip when there are multiple frames of continuous black data; The source driver chip is used to short-circuit to the common voltage according to the display control signal when the display device displays the first frame of black data, and to connect to the data drive voltage according to the display control signal when the display device displays the last frame of black data.

2. The display device according to claim 1, characterized in that The detector is used to: when detecting that there are multiple frames of continuous black data in the display data output by the source driver chip, write a first bit value combination into a preset bit combination of row configuration information corresponding to the black data of the first frame, and write a second bit value combination into a preset bit combination of row configuration information corresponding to the black data of the last frame; wherein the first bit value combination is different from the second bit value combination; The source driver chip is used to: short-circuit to the common voltage when the first bit value combination is identified in the preset bit combination of the row configuration information; and connect to the data drive voltage when the second bit value combination is identified in the preset bit combination of the row configuration information.

3. The display device according to claim 2, characterized in that: The detector is also used for: The first bit value combination is written into a preset bit position combination of first row configuration information; wherein the first row configuration information is row configuration information corresponding to the first row data in the black data of the first frame.

4. The display device according to claim 3, characterized in that: The detector is also used for: The second bit value combination is written into a preset bit combination of second row configuration information; wherein the second row configuration information is the row configuration information corresponding to the last row of data in the last frame of the black data.

5. The display device according to claim 4, characterized in that: The detector is also used for: A third bit value combination is written into a preset bit combination of the third row configuration information; wherein, the third data corresponding to the third row configuration information in multiple continuous frames of black data is located between the second data corresponding to the second row configuration information and the first data corresponding to the first row configuration information; the third bit value combination is different from the second bit value combination; the third bit value combination is the same as or different from the first bit value combination.

6. The display device according to claim 5, characterized in that: The source driver chip is also used for: When the third bit value combination is identified in the preset bit combination of the row configuration information, the short circuit with the common voltage is maintained.

7. The display device according to claim 2, characterized in that: The source driver chip includes a logic control module, a switch module, a voltage amplification module and a multiplexing module; wherein the switch module is connected to the logic control module, the power system and the voltage amplification module, the voltage amplification module is also connected to the multiplexing module, and the multiplexing module is also connected to the power system; The logic control module is used to: when the first bit value combination is identified in the preset bit combination of the row configuration information, control the switch module to be turned off, and control the multiplexing module to be short-circuited to the common voltage; when the second bit value combination is identified in the preset bit combination of the row configuration information, control the switch module to be turned on so that the voltage amplification module is connected to the data drive voltage.

8. The display device according to claim 7, characterized in that: The source driver chip further includes a gamma voltage module; wherein the gamma voltage module is connected to the logic control module; The logic control module is further used to: turn off the gamma voltage module when the first bit value combination is identified in the preset bit combination of the row configuration information; and turn on the gamma voltage module when the second bit value combination is identified in the preset bit combination of the row configuration information.

9. A display control method, characterized in that: Applicable to a display device, the display device comprising a power supply system, a detector and a source driver chip; The display control method comprises: The detector detects whether there are multiple frames of continuous black data in the display data output by the source driver chip, and sends a display control signal to the source driver chip when there are multiple frames of continuous black data; When the display device displays the first frame of black data, the source driver chip is short-circuited to the common voltage provided by the power supply system according to the display control signal, and when the display device displays the last frame of black data, the source driver chip is connected to the data driving voltage provided by the power supply system according to the display control signal.

10. The display control method according to claim 9, characterized in that: The detector detects whether there are multiple frames of continuous black data in the display data output by the source driver chip, and sends a display control signal to the source driver chip when there are multiple frames of continuous black data, including: When the detector detects that there are multiple frames of continuous black data in the display data output by the source driver chip, the detector writes a first bit value combination into a preset bit combination of the row configuration information corresponding to the black data of the first frame, and writes a second bit value combination into a preset bit combination of the row configuration information corresponding to the black data of the last frame; wherein the first bit value combination is different from the second bit value combination; When the display device displays the first frame of black data, the source driver chip is short-circuited to the common voltage provided by the power supply system according to the display control signal, and when the display device displays the last frame of black data, the source driver chip is connected to the data driving voltage provided by the power supply system according to the display control signal, including: When the first bit value combination is identified in the preset bit combination of the row configuration information, the source driver chip is short-circuited to the common voltage provided by the power supply system; and when the second bit value combination is identified in the preset bit combination of the row configuration information, the source driver chip is connected to the data driving voltage provided by the power supply system.

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