CN210298135U - Driving power supply for display panel - Google Patents
Driving power supply for display panel Download PDFInfo
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- CN210298135U CN210298135U CN201920895027.XU CN201920895027U CN210298135U CN 210298135 U CN210298135 U CN 210298135U CN 201920895027 U CN201920895027 U CN 201920895027U CN 210298135 U CN210298135 U CN 210298135U
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Abstract
The utility model provides a drive power supply for display panel, wherein, drive power supply includes: the output unit is respectively connected with a preset power supply and a light-emitting component of the display panel; the sampling unit is connected with the output unit and is used for collecting output voltage and/or output current provided by the output unit to the light-emitting component; the control unit is connected with the sampling unit; and the power adjusting unit is connected with the output unit and the control unit and adjusts the output power of the output unit under the control of the control unit. Therefore, the utility model discloses a drive power supply for display panel can satisfy not unidimensional display panel's output voltage and output current's requirement to, can improve efficiency of software testing, reduce test cost.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a drive power supply for display panel.
Background
In the related art, since the number of the strings of lights and the number of the lamps of each string of lights of the display panels having different sizes are different, the driving power sources for testing the display panels are different. However, the related art has a problem in that the driving power supply cannot adaptively output voltages to display panels of different sizes, that is, when there are display panels of different sizes, the driving power supply needs to be continuously replaced, so that the use efficiency of the test equipment on the production line is reduced, and the cost of the test equipment is increased.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the present invention is directed to a driving power supply for a display panel to adaptively adjust output voltage and output current for display panels of different sizes.
To achieve the above object, the present invention provides a driving power supply for a display panel, including: the output unit is respectively connected with a preset power supply and the light-emitting assembly of the display panel; the sampling unit is connected with the output unit and is used for collecting the output voltage and/or the output current provided by the output unit to the light-emitting component; the control unit is connected with the sampling unit; and the power adjusting unit is connected with the output unit and the control unit and adjusts the output power of the output unit under the control of the control unit.
According to the utility model provides a drive power supply for display panel gathers output unit through the sampling unit and provides output voltage and/or output current to light emitting component to, output unit's output is adjusted under the control of the control unit to the power conditioning unit. Therefore, the utility model discloses a drive power supply for display panel can satisfy not unidimensional display panel's output voltage and output current's requirement to, can improve efficiency of software testing, reduce test cost.
In addition, the utility model provides a drive power supply for display panel can also have following additional technical characteristics:
further, the power regulating unit includes a switching tube and a first resistor, a control electrode of the switching tube is connected to the control unit through the first resistor, a first electrode of the switching tube is connected to the output unit, and a second electrode of the switching tube is grounded, where the switching tube is turned on or off under the control of the control unit.
Further, the sampling unit includes voltage sampling circuit, voltage sampling circuit's sampling end with output unit with light emitting component all links to each other, voltage sampling circuit's output with the control unit links to each other, wherein, voltage sampling circuit includes a plurality of divider resistance of series connection, a plurality of divider resistance's one end with output unit with light emitting component all links to each other, a plurality of divider resistance's the other end ground connection, a plurality of divider resistance's intermediate node with the control unit links to each other.
Further, the sampling unit includes a current sampling circuit connected to the output unit through the power conditioning unit, wherein the current sampling circuit includes: a second resistor connected between the second pole of the switching tube and the ground; and one end of the third resistor is connected with the second pole of the switching tube, and the other end of the third resistor is connected with the control unit.
Furthermore, the current sampling circuit further comprises a first capacitor, one end of the first capacitor is connected with the other end of the third resistor, and the other end of the first capacitor is grounded.
Further, the output unit comprises a diode, the anode of the diode is connected with the preset power supply, the cathode of the diode is connected with the light emitting component, the anode of the diode is further connected with the power regulating unit, and the cathode of the diode is connected with the voltage sampling unit.
Further, the output unit further comprises an inductor, and the inductor is connected between the anode of the diode and the preset power supply.
Further, the driving power supply for a display panel further includes an input filter unit connected between the output unit and the preset power supply, and the input filter unit includes: a first capacitor bank comprising at least one first filter capacitor; a second capacitor bank comprising at least one second filter capacitor; the first end of the common mode inductor is connected with one end of the first capacitor bank and connected with the preset power supply, the second end of the common mode inductor is connected with the other end of the first capacitor bank and grounded, the third end of the common mode inductor is connected with one end of the second capacitor bank and the output unit, and the fourth end of the common mode inductor is connected with the other end of the second capacitor bank.
Further, the driving power supply for a display panel further includes an output filter unit connected between the output unit and the light emitting assembly, the output filter unit including: one end of the third filter capacitor is connected with the output unit and the light-emitting component, and the other end of the third filter capacitor is grounded; a fourth filter capacitor connected in parallel with the third filter capacitor.
Further, the driving power supply for a display panel further includes a soft start unit connected to a power supply terminal of the control unit, wherein the soft start unit includes: one end of the fourth resistor is connected with the preset power supply; a collector of the triode is connected with the other end of the fourth resistor, the collector of the triode is also connected with a power supply end of the control unit, and an emitter of the triode is grounded; one end of the fifth resistor is connected with the preset power supply; one end of the sixth resistor is connected with the other end of the fifth resistor, and the other end of the sixth resistor is connected with the base electrode of the triode; and one end of the second capacitor is connected with one end of the sixth resistor, and the other end of the second capacitor is grounded.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram illustrating a driving power supply for a display panel according to an embodiment of the present invention;
fig. 2 is a block diagram illustrating a driving power supply for a display panel according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a driving power supply for a display panel according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes a driving power supply for a display panel according to an embodiment of the present invention with reference to the drawings.
Fig. 1 is a block diagram illustrating a driving power supply for a display panel according to an embodiment of the present invention.
As shown in fig. 1, the driving power supply for a display panel of the present invention includes an output unit 10, a sampling unit 20, a control unit 30, and a power adjusting unit 40.
Wherein, the output unit 10 is respectively connected to a preset power VIN and the light emitting assembly 100 of the display panel; the sampling unit 20 is connected to the output unit 10, and the sampling unit 20 is configured to collect an output voltage and/or an output current provided by the output unit 10 to the light emitting assembly 100; the control unit 30 is connected with the sampling unit 20; the power adjusting unit 40 is connected to the output unit 10 and the control unit 30, and the power adjusting unit 40 adjusts the output power of the output unit 10 under the control of the control unit 30.
It should be noted that the light emitting assembly 100 of the display panel may include a plurality of strings, each string may further include a plurality of LED lamps, wherein the number of strings in the light emitting assembly 100 of the display panel with different sizes and the number of LED lamps in each string of lamps are different, and therefore, the voltage and current required for the light emitting assembly 100 of the display panel with different sizes to operate are different.
It can be understood that the output voltage and/or the output current provided by the output unit 10 to the light emitting assembly 100 can be collected by the sampling unit 20, and the control unit 30 controls the power adjusting unit 40 to adjust the output power of the output unit 10 according to the output voltage and/or the output current collected by the sampling unit 20, so as to match different numbers of light strings in the light emitting assembly 100 and different numbers of LED lamps in each light string in display panels with different sizes.
Therefore, the display panels of different sizes can be adaptively lightened without replacing the driving power supply of the display panel, the service efficiency of the test equipment on a production line is improved, and the cost of the test equipment is reduced.
Specifically, according to an embodiment of the present invention, as shown in fig. 3, the power conditioning unit 40 includes a switch Q1 and a first resistor R1, a control pole of the switch Q1 is connected to the control unit 30 through the first resistor R1, a first pole of the switch Q1 is connected to the output unit 10, and a second pole of the switch Q1 is grounded, wherein the switch Q1 is turned on or off under the control of the control unit 30.
It can be understood that the control unit 30 can control the on and off of the switching tube Q1 according to the output voltage and/or the output current provided by the output unit 10 to the light emitting assembly 100 collected by the sampling unit 20, so as to adjust the output power of the output unit 10.
Further, according to the utility model discloses an embodiment, as shown in fig. 2-3, sampling unit 20 includes voltage sampling circuit 201, voltage sampling circuit 201's sampling end all links to each other with output unit 10 and light emitting component 100, voltage sampling circuit 201's output links to each other with the control unit 30, wherein, voltage sampling circuit 201 includes a plurality of divider resistance of series connection, a plurality of divider resistance's one end all links to each other with output unit 10 and light emitting component 100, a plurality of divider resistance's other end ground connection, a plurality of divider resistance's intermediate node A links to each other with the control unit 30.
It can be understood that the voltage sampling circuit 202 collects the output voltage provided by the output unit 10 to the light emitting assembly 100, and the control unit 30 determines the number of strings in the light emitting assembly 100 and the number of LED lamps in each string of lamps in the display panel according to the collected output voltage, so as to adjust the duty ratio of the control signal input to the control electrode of the switching tube Q1, so as to adjust the output power of the output unit 10, thereby matching display panels of different sizes.
Further, according to an embodiment of the present invention, as shown in fig. 2 to 3, the sampling unit 20 includes a current sampling circuit 202, the current sampling circuit 202 is connected to the output unit 10 through the power adjusting unit 40, wherein the current sampling circuit 202 includes: a second resistor R2 and a third resistor R3, the second resistor R2 is connected between the second pole of the switch Q1 and the ground; one end of the third resistor R3 is connected to the second pole of the switch Q1, and the other end of the third resistor R3 is connected to the control unit 30.
Further, according to an embodiment of the present invention, as shown in fig. 3, the current sampling circuit 202 further includes a first capacitor C11, one end of the first capacitor C11 is connected to the other end of the third resistor R3, and the other end of the first capacitor C1 is grounded.
It can be understood that the current sampling circuit 202 collects the output current provided by the output unit 10 to the light emitting assembly 100, and the control unit 30 adjusts the frequency of the control signal input to the control electrode of the switching tube Q1 according to the output current collected by the current sampling circuit 202 to adjust the brightness of the light emitting assembly 100.
In addition, the control unit 30 may also close the switching tube Q1 when the output current provided to the light emitting assembly 100 by the output unit 10 collected by the current sampling circuit 202 exceeds a threshold value, for example, 6A, so as to implement overcurrent protection.
Further, according to an embodiment of the present invention, as shown in fig. 3, the output unit 10 includes a diode D1, an anode of the diode D1 is connected to the predetermined power VIN, a cathode of the diode D1 is connected to the light emitting module 100, an anode of the diode D1 is further connected to the power conditioning unit 40, and a cathode of the diode D1 is connected to the voltage sampling circuit 202. The diode D1 may be a zener diode.
Further, according to an embodiment of the present invention, as shown in fig. 3, the output unit 10 further includes an inductor L1, and the inductor L1 is connected between the anode of the diode D1 and the predetermined power source VIN.
It can be understood that when the switch Q1 is turned off, the predetermined power VIN, the inductor L1, the diode D1 and the light emitting device 100 form a loop, when the switch Q1 is turned on, the predetermined power VIN, the inductor L1, the diode D1 and the light emitting device 100 form a loop, and the control unit 30 may adjust a duty ratio of a control signal input to the control electrode of the switch Q1 according to the output voltage collected by the voltage sampling circuit 201 to adjust the output power of the output unit 10, and adjust a frequency of the control signal input to the control electrode of the switch Q1 according to the output current collected by the current sampling circuit 202 to adjust the brightness of the light emitting device 100.
The frequency is the reciprocal of the control period T, the control period T is the time from the moment when the switching transistor Q1 is turned from off to on to the moment when the switching transistor Q1 is turned from off to on next time, and the duty ratio is the ratio of the on-time Ton of the switching transistor Q1 to the control period T in one control period T, that is, Ton/T.
For example, when the voltage sampling unit 201 collects the output voltage provided by the output unit 10 to the light emitting device 100, and the control unit 30 determines that the number of strings of the string of lights and the number of LED lamps in each string of lights are large according to the output voltage collected by the voltage sampling unit 201, that is, the output power of the output unit 10 needs to be increased, the duty ratio of the control signal input to the control electrode of the switch Q1 may be reduced, that is, the on-time Ton of the switch Q1 is reduced without changing the control period T. Similarly, when the voltage sampling unit 201 collects the output voltage provided by the output unit 10 to the light emitting assembly 100, and the control unit 30 determines that the number of strings of the string of lights and the number of LED lights in each string of lights are small according to the output voltage collected by the voltage sampling unit 201, that is, the output power of the output unit 10 needs to be reduced, the duty ratio of the control signal input to the control electrode of the switch Q1 may be increased, that is, the on-time Ton of the switch Q1 is increased under the condition that the control period T is not changed.
Therefore, the driving power supply for the display panel in the embodiment of the invention can adaptively light the display panels with different sizes, that is, when the display panels with different sizes are used, the driving power supply for the display panel is not required to be replaced, the string number of the string lights and the number of the LED lamps in each string of lights are judged through the acquired output voltage, and an appropriate voltage value is output, that is, the output power of the output unit 10 is adaptively adjusted through the acquired output voltage, so that the use efficiency of production line test equipment is improved, and the cost of the test equipment is reduced.
Further, according to an embodiment of the present invention, as shown in fig. 2 to 3, the driving power supply for the display panel further includes an input filtering unit 50 connected between the output unit 10 and the preset power VIN, wherein the input filtering unit 50 includes: the common-mode inductor L2 comprises a first capacitor bank 501, a second capacitor bank 502 and a common-mode inductor L2, wherein the first capacitor bank 501 comprises at least one first filter capacitor C1; the second capacitor bank 502 includes at least one second filter capacitor C2; a first terminal of the common mode inductor L2 is connected to one terminal of the first capacitor set 501 and connected to a predetermined power VIN, a second terminal of the common mode inductor L2 is connected to the other terminal of the first capacitor set 501 and connected to ground, a third terminal of the common mode inductor L2 is connected to one terminal of the second capacitor set 502 and the output unit 10, and a fourth terminal of the common mode inductor L2 is connected to the other terminal of the second capacitor set 502.
Further, according to an embodiment of the present invention, as shown in fig. 2 to 3, the driving power supply for a display panel further includes an output filter unit 60 connected between the output unit 10 and the light emitting assembly 100, the output filter unit 60 including: a third filter capacitor C3 and a fourth filter capacitor C4, wherein one end of the third filter capacitor C3 is connected to the output unit 10 and the light emitting module 100, and the other end of the third filter capacitor C3 is grounded; the fourth filter capacitor C4 is connected in parallel with the third filter capacitor C3.
Further, according to an embodiment of the present invention, as shown in fig. 2 to 3, the driving power supply for the display panel further includes a soft start unit 70 connected to the power supply terminal 23 of the control unit 30, wherein the soft start unit 70 includes: the power supply circuit comprises a fourth resistor R4, a triode Q2, a fifth resistor R5, a sixth resistor R6 and a second capacitor C2, wherein one end of the fourth resistor R4 is connected with a preset power supply VIN; the collector of the triode Q2 is connected with the other end of the fourth resistor R4, the collector of the triode Q2 is also connected with the power supply terminal 23 of the control unit 30, and the emitter of the triode Q2 is grounded; one end of the fifth resistor R5 is connected to a preset power supply VIN; one end of a sixth resistor R6 is connected with the other end of the fifth resistor R5, and the other end of the sixth resistor R6 is connected with the base electrode of the triode Q2; one end of the second capacitor C22 is connected to one end of the sixth resistor R6, and the other end of the second capacitor C22 is grounded.
It can be understood that the preset power VIN can charge the second capacitor C22 through the fifth resistor R5, the base potential of the transistor Q2 is slowly increased, the transistor Q2 is slowly turned on, and the voltage of the power supply terminal 23 of the input control unit 30 is slowly increased, so as to achieve the function of driving the soft start of the power supply.
In summary, according to the utility model provides a drive power supply for display panel gathers output unit through the sampling unit and provides output voltage and/or output current to light emitting component to, power conditioning unit adjusts output unit's output under control unit's control. Therefore, the utility model discloses a drive power supply for display panel can satisfy not unidimensional display panel's output voltage and output current's requirement to, can improve efficiency of software testing, reduce test cost.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A driving power supply for a display panel, comprising:
the output unit is respectively connected with a preset power supply and the light-emitting assembly of the display panel;
the sampling unit is connected with the output unit and is used for collecting the output voltage and/or the output current provided by the output unit to the light-emitting component;
the control unit is connected with the sampling unit;
and the power adjusting unit is connected with the output unit and the control unit and adjusts the output power of the output unit under the control of the control unit.
2. The power supply according to claim 1, wherein the power adjusting unit comprises a switch tube and a first resistor, a control electrode of the switch tube is connected to the control unit through the first resistor, a first electrode of the switch tube is connected to the output unit, and a second electrode of the switch tube is connected to ground, wherein the switch tube is turned on or off under the control of the control unit.
3. The driving power supply for a display panel according to claim 1, wherein the sampling unit includes a voltage sampling circuit, a sampling terminal of the voltage sampling circuit is connected to both the output unit and the light emitting element, and an output terminal of the voltage sampling circuit is connected to the control unit, wherein,
the voltage sampling circuit comprises a plurality of voltage division resistors connected in series, one ends of the voltage division resistors are connected with the output unit and the light emitting component, the other ends of the voltage division resistors are grounded, and intermediate nodes of the voltage division resistors are connected with the control unit.
4. The driving power supply for a display panel according to claim 2, wherein the sampling unit includes a current sampling circuit connected to the output unit through the power adjusting unit, wherein the current sampling circuit includes:
a second resistor connected between the second pole of the switching tube and the ground;
and one end of the third resistor is connected with the second pole of the switching tube, and the other end of the third resistor is connected with the control unit.
5. The driving power supply for a display panel according to claim 4, wherein the current sampling circuit further comprises a first capacitor, one end of the first capacitor is connected to the other end of the third resistor, and the other end of the first capacitor is grounded.
6. The power supply according to claim 3, wherein the output unit comprises a diode, an anode of the diode is connected to the predetermined power supply, a cathode of the diode is connected to the light emitting element, an anode of the diode is further connected to the power adjusting unit, and a cathode of the diode is connected to the voltage sampling circuit.
7. The driving power supply for a display panel according to claim 6, wherein the output unit further comprises an inductor connected between an anode of the diode and the preset power supply.
8. The driving power supply for a display panel according to claim 1, further comprising an input filter unit connected between the output unit and the preset power supply, the input filter unit comprising:
a first capacitor bank comprising at least one first filter capacitor;
a second capacitor bank comprising at least one second filter capacitor;
the first end of the common mode inductor is connected with one end of the first capacitor bank and connected with the preset power supply, the second end of the common mode inductor is connected with the other end of the first capacitor bank and grounded, the third end of the common mode inductor is connected with one end of the second capacitor bank and the output unit, and the fourth end of the common mode inductor is connected with the other end of the second capacitor bank.
9. The driving power supply for a display panel according to claim 1, further comprising an output filter unit connected between the output unit and the light emitting element, the output filter unit comprising:
one end of the third filter capacitor is connected with the output unit and the light-emitting component, and the other end of the third filter capacitor is grounded;
a fourth filter capacitor connected in parallel with the third filter capacitor.
10. The driving power supply for a display panel according to claim 1, further comprising a soft start unit connected to a power supply terminal of the control unit, wherein the soft start unit comprises:
one end of the fourth resistor is connected with the preset power supply;
a collector of the triode is connected with the other end of the fourth resistor, the collector of the triode is also connected with a power supply end of the control unit, and an emitter of the triode is grounded;
one end of the fifth resistor is connected with the preset power supply;
one end of the sixth resistor is connected with the other end of the fifth resistor, and the other end of the sixth resistor is connected with the base electrode of the triode;
and one end of the second capacitor is connected with one end of the sixth resistor, and the other end of the second capacitor is grounded.
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| CN201920895027.XU CN210298135U (en) | 2019-06-13 | 2019-06-13 | Driving power supply for display panel |
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| CN201920895027.XU CN210298135U (en) | 2019-06-13 | 2019-06-13 | Driving power supply for display panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554235A (en) * | 2020-05-28 | 2020-08-18 | 广东美的厨房电器制造有限公司 | Boost circuit, display device and household appliance |
| CN114019405A (en) * | 2021-07-15 | 2022-02-08 | 重庆康佳光电技术研究院有限公司 | Lighting test device, method and system |
| CN114488639A (en) * | 2022-03-30 | 2022-05-13 | 苏州华星光电技术有限公司 | Array substrate, liquid crystal display panel and display device |
| US11947230B2 (en) | 2022-03-30 | 2024-04-02 | Suzhou China Star Optoelectronics Technology Co., Ltd. | Array substrate, liquid crystal display panel, and display device |
-
2019
- 2019-06-13 CN CN201920895027.XU patent/CN210298135U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554235A (en) * | 2020-05-28 | 2020-08-18 | 广东美的厨房电器制造有限公司 | Boost circuit, display device and household appliance |
| CN114019405A (en) * | 2021-07-15 | 2022-02-08 | 重庆康佳光电技术研究院有限公司 | Lighting test device, method and system |
| CN114488639A (en) * | 2022-03-30 | 2022-05-13 | 苏州华星光电技术有限公司 | Array substrate, liquid crystal display panel and display device |
| CN114488639B (en) * | 2022-03-30 | 2024-01-12 | 苏州华星光电技术有限公司 | Array substrate, liquid crystal display panel and display device |
| US11947230B2 (en) | 2022-03-30 | 2024-04-02 | Suzhou China Star Optoelectronics Technology Co., Ltd. | Array substrate, liquid crystal display panel, and display device |
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