TWI856351B - Electronic device - Google Patents

Abstract

An electronic device is disclosed. The electronic device includes a panel, a backlight module, a first circuit and a second circuit. The backlight module and the panel are disposed correspondingly. The first circuit includes a system circuit module. The second circuit includes a panel timing controlling module and a backlight timing controlling module. The backlight timing controlling module receives a first signal transmitted from the system circuit module, and provides a backlight controlling signal to the backlight module. The panel timing controlling module receives a second signal transmitted from the system circuit module, and provides a panel controlling signal to the panel. Another electronic device is also disclosed herein, such that the first circuit includes the system circuit module and the backlight timing controlling module.

Description

Electronic devices

The present disclosure relates to an electronic device, and in particular to an electronic device including a panel and a backlight module.

The backlight module can be applied to a display to display images in coordination with the panel of the display. Generally speaking, the backlight module and the panel are controlled by different control circuits. Specifically, the backlight timing control module used to control the backlight module and the panel timing control module used to control the panel can be operated according to the signals corresponding to the system circuits. However, the existing backlight timing control module is arranged on a separate circuit board and is coupled to the system circuit and the backlight module through specific lines, resulting in a cost burden. On the other hand, since the backlight timing control module is arranged on an independent circuit board, the circuit design of the local dimming is limited.

The present disclosure is directed to an electronic device that can integrate a backlight timing control module into other circuits to reduce costs and increase circuit design flexibility.

According to an embodiment of the present disclosure, the electronic device disclosed herein includes a panel, a backlight module, a first circuit and a second circuit. The backlight module is arranged corresponding to the panel. The first circuit includes a system circuit module. The second circuit couples the first circuit, the panel and the backlight module. The second circuit includes a panel timing control module and a backlight timing control module. The backlight timing control module receives a first signal transmitted by the system circuit module and provides a backlight control signal to the backlight module. The panel timing control module receives a second signal transmitted by the system circuit module and provides a panel control signal to the panel.

According to another embodiment of the present disclosure, the electronic device disclosed herein includes a panel, a backlight module, a first circuit and a second circuit. The backlight module is arranged corresponding to the panel. The first circuit is coupled to the backlight module. The first circuit includes a system circuit module and a backlight timing control module. The second circuit is coupled between the panel and the first circuit. The second circuit includes a panel timing control module. The backlight timing control module receives a first signal transmitted by the system circuit module and provides a backlight control signal to the backlight module. The panel timing control module receives a second signal transmitted by the system circuit module and provides a panel control signal to the panel.

Based on the above, the electronic device disclosed herein integrates the backlight timing control module into the panel timing control module or the system circuit module to perform corresponding operations in the integrated circuit. In this way, the integrated configuration of the backlight timing control module can save additional independent configurations, thereby reducing costs and increasing the circuit design flexibility of the electronic device.

The present disclosure can be understood by referring to the following detailed description and the accompanying drawings. It should be noted that, in order to facilitate the reader's understanding and for the simplicity of the drawings, the various drawings in the present disclosure only depict a portion of the display device, and the specific components in the drawings are not drawn according to the actual scale. In addition, the number and size of each component in the figure are only for illustration and are not used to limit the scope of the present disclosure.

Certain terms are used throughout the specification and claims to refer to specific components. Those skilled in the art will appreciate that display device manufacturers may refer to the same component by different names. This document does not intend to distinguish between components that have the same function but different names. In the following specification and claims, the words "including" and "comprising" are open-ended words and should be interpreted as "including but not limited to..."

In some embodiments of the present disclosure, terms such as "coupled", "interconnected", etc., related to bonding and connection, unless otherwise specifically defined, may refer to two structures being in direct contact, or may also refer to two structures not being in direct contact, wherein other structures are disposed between the two structures. Such terms related to bonding and connection may also include situations where both structures are movable, or both structures are fixed. In addition, the term "coupled" includes any direct and indirect electrical connection means.

The ordinal numbers used in the specification and claims, such as "first", "second", etc., are used to modify components. They do not imply or represent any previous ordinal numbers of the components, nor do they represent the order of one component and another component, or the order of the manufacturing method. The use of multiple ordinal numbers is only used to make a component with a certain name clearly distinguishable from another component with the same name. The same terms may not be used in the claims and the specification. Accordingly, the first component in the specification may be the second component in the claims. It should be noted that the embodiments listed below can replace, reorganize, and mix the technical features in several different embodiments to complete other embodiments without departing from the spirit of the present disclosure.

FIG. 1 is a schematic diagram of a circuit block of an electronic device according to an embodiment of the present disclosure. Referring to FIG. 1 , the electronic device 100 includes, for example, an active matrix or a passive matrix display panel, but is not limited thereto. In some embodiments, the electronic device 100 may include a display device, an antenna device, a sensing device, or a splicing device, but is not limited thereto. The electronic device 100 may be a bendable or flexible electronic device. The electronic device 100 may include, for example, a liquid crystal or a light-emitting diode. The light emitting diode may, for example, include an organic light emitting diode (OLED), a sub-millimeter light emitting diode (mini LED), a micro LED or a quantum dot light emitting diode (QD, which may be, for example, QLED, QDLED), fluorescence, phosphor or other suitable materials, and the materials may be arranged and combined in any manner, but are not limited thereto. The antenna device may, for example, be a liquid crystal antenna, but is not limited thereto. The splicing device may, for example, be a display splicing device or an antenna splicing device, but is not limited thereto. It should be noted that the electronic device 100 may be any arrangement or combination of the aforementioned, but is not limited thereto. The following text will use a display device as the electronic device 100 or the splicing device to illustrate the content of the present disclosure, but the present disclosure is not limited thereto.

In this embodiment, the electronic device 100 includes a panel 110, a backlight module 120, a first circuit 130, and a second circuit 140. The second circuit 140 is coupled to the first circuit 130, the panel 110, and the backlight module 120.

In the present embodiment, the backlight module 120 is arranged corresponding to the panel 110. Specifically, in the present embodiment, the backlight module 120 is parallel to the panel 110 and is arranged at a distance therefrom. In the present embodiment, the panel 110 may be, for example, a liquid crystal panel. In the present embodiment, the backlight module 120 may be, for example, a backlight panel using a cold cathode fluorescent lamp (CCFL) or a light-emitting diode (LED).

In the present embodiment, the first circuit 130 includes a system circuit module 131. The system circuit module 131 may output a first signal S1 to indicate the generation of a signal associated with the backlight module 120. The system circuit module 131 may output a second signal S2 to indicate the generation of a signal associated with the panel 110. In the present embodiment, the system circuit module 131 may be, for example, a system on chip (SOC), which may include a processor such as a microcontroller, a microprocessor, a digital signal processor, and a memory such as a read-only memory (ROM), a random access memory (RAM), an electronically erasable programmable read-only memory (EEPROM), a flash memory, and may run operating systems such as Windows, Linux, and other application programs, but the present disclosure is not limited thereto. In some embodiments, the system circuit module 131 may be a driving circuit board in which the above-mentioned microcontroller, microprocessor and other components are dispersedly arranged.

In this embodiment, the second circuit 140 includes a panel timing control module 141 and a backlight timing control module 142. The backlight timing control module 142 is coupled between the system circuit module 131 and the backlight module 120. In this embodiment, the backlight timing control module 142 can generate a backlight control signal S3 associated with the backlight module 120 according to the first signal S1.

In the present embodiment, the panel timing control module 141 is coupled between the system circuit module 131 and the panel 110. In the present embodiment, the panel timing control module 141 can generate a panel control signal S4 related to the panel 110 according to the second signal S2. In the present embodiment, the second circuit 140 can be, for example, a timing controller (T-con), but is not limited thereto.

In this embodiment, the backlight timing control module 142 receives the first signal S1 transmitted by the system circuit module 131 and provides the backlight control signal S3 to the backlight module 120. The panel timing control module 141 receives the second signal S2 transmitted by the system circuit module 131 and provides the panel control signal S4 to the panel 110. In other words, the backlight timing control module 142 and the panel timing control module 141 are integrated into the same second circuit 140. The backlight timing control module 142 and the panel timing control module 141 can respectively perform corresponding operations according to the signals S1 and S2 from the system circuit module 131.

It is worth mentioning that by integrating the backlight timing control module 142 and the panel timing control module 141 together through the second circuit 140, it is possible to avoid setting the backlight timing control module 142 in an additional separate circuit, thereby reducing production costs. In addition, the integrated backlight timing control module 142 and the panel timing control module 141 can also receive the signals S1 and S2 from the system circuit module 131 respectively, thereby increasing the circuit design flexibility of the first circuit 130 and the integrated circuit (i.e., the second circuit 140).

FIG2 is a schematic diagram of a circuit block of an electronic device according to an embodiment of the present disclosure. Referring to FIG2 , the electronic device 200 includes a panel 210, a backlight module 220, a first circuit 230, and a second circuit 240. The panel 210, the backlight module 220, the first circuit 230, the second circuit 240, the panel timing control module 241 included in the second circuit 240, and the backlight timing control module 242 included in the electronic device 200 of FIG2 can refer to the relevant description of the electronic device 100 and be deduced by analogy, so they are not repeated here.

In this embodiment, the panel 210 includes a panel data driver circuit 211 and a panel scan driver circuit 212. The panel data driver circuit 211 and the panel scan driver circuit 212 are respectively coupled to the panel timing control module 241. In addition, the panel 210 may include at least one display unit (not shown). According to design requirements, in this embodiment, the display unit may be a plurality of display units, and the number and arrangement thereof may be determined according to actual requirements. According to actual applications, the display unit may include a pixel in a display panel in the form of liquid crystal, electrowetting, etc., but the present disclosure is not limited thereto.

In this embodiment, the panel data driver circuit 211 and the panel scan driver circuit 212 can receive the panel control signal S4 output by the panel timing control module 241 to drive the display unit. Specifically, in this embodiment, the panel data driver circuit 211 receives the data driver signal Tx_A in the panel control signal S4 to generate a data signal provided to the display unit, and the panel scan driver circuit 212 generates a scan signal according to the scan driver signal Sc_A of the panel control signal S4 to control whether the display unit receives the data signal from the panel data driver circuit 211, and the display unit changes its transmittance according to the data signal.

In this embodiment, the panel scan driver circuit 212 may be, for example, a gate driver, and the panel data driver circuit 211 may be, for example, a source driver. In some embodiments, the panel data driver circuit 211 and/or the panel scan driver circuit 212 may include, for example, a graphics processor (GPU) or other programmable general-purpose or special-purpose microprocessor, digital signal processor (DSP), programmable controller, application specific integrated circuits (ASIC), programmable logic device (PLD), other similar processing devices, or a combination of these devices.

In the present embodiment, the backlight module 220 may be an active backlight module, but is not limited thereto. The backlight module 220 includes a backlight data driver circuit 221 and a backlight scanning driver circuit 222. The backlight data driver circuit 221 and the backlight scanning driver circuit 222 are respectively coupled to a backlight control circuit 223. In addition, the backlight module 220 may include at least one light-emitting unit (not shown). According to design requirements, in the present embodiment, the light-emitting unit is provided in plural, and its quantity and arrangement can be determined according to actual requirements. According to actual applications, the light-emitting unit may include a cold cathode fluorescent lamp (CCFL), a light emitting diode (LED) or other types of light-emitting components, and the present embodiment is not limited thereto. The light-emitting diode may be, for example, a micro-LED, an organic light-emitting diode (OLED), an inorganic light-emitting diode (ILED), a sub-millimeter light-emitting diode (Mini-LED), a micro-LED, an electroluminescence (EL) component, a laser diode, etc.

In the embodiment of FIG. 2 , the backlight control circuit 223 is coupled to the backlight data driving circuit 221 , the backlight scanning driving circuit 222 and the backlight timing control module 242 .

In this embodiment, the backlight data driving circuit 221 and the backlight scanning driving circuit 222 can drive the light-emitting unit according to the backlight control signal S3 output by the backlight timing control module 242. Specifically, in this embodiment, the backlight control circuit 223 can output the backlight data driving signal SOT1 and the backlight scanning driving signal SOT2 according to the backlight control signal S3, and the backlight data driving circuit 221 and the backlight scanning driving circuit 222 drive the light-emitting unit according to the backlight data driving signal SOT1 and the backlight scanning driving signal SOT2.

In this embodiment, the backlight scanning driver circuit 222 may be, for example, a gate driver, and the backlight data driver circuit 221 may be, for example, a source driver. In some embodiments, the backlight data driver circuit 221, the backlight driver circuit 222 and/or the backlight control circuit 223 may include, for example, a graphics processor (GPU) or other programmable general-purpose or special-purpose microprocessor, a digital signal processor (DSP), a programmable controller, an application specific integrated circuit (ASIC), a programmable logic device (PLD), other similar processing devices or a combination of these devices.

Specifically, in this embodiment, the backlight control circuit 223 can convert the grayscale signal Tx_B of the backlight control signal S3 into the backlight data drive signal SOT1, so that the backlight data drive circuit 221 can generate the backlight data signal according to the backlight data drive signal SOT1. Similarly, the backlight control circuit 223 can convert the scan signal Sc_B of the backlight control signal S3 into the backlight scan drive signal SOT2, so that the backlight scan drive circuit 222 can generate the backlight scan signal according to the backlight scan drive signal SOT2 to control whether the light-emitting unit receives the backlight data signal, and the light-emitting unit changes the light brightness according to the received backlight data signal. By controlling the brightness of the light-emitting unit and the transmittance of the display unit, effects such as local dimming can be achieved, or the quality of the image displayed by the electronic device 200 can be improved.

It should be noted that in the present embodiment, the backlight control circuit 223 is disposed in the backlight module 220, rather than in the second circuit 240, to save additional circuit configuration. For example, in the present embodiment, the backlight control circuit 223 can be implemented by a driving circuit board. The backlight module 220 can be implemented by a backlight panel, for example. The aforementioned driving circuit board can be disposed on the backlight panel to couple to the light-emitting unit, the backlight data driving circuit 221, and the backlight scanning driving circuit 222 on the backlight panel.

In this embodiment, the backlight control signal S3 includes a grayscale signal Tx_B and a scan signal Sc_B. In this embodiment, the grayscale signal Tx_B can be, for example, a low voltage differential signal (LVDS) or a mini-LVDS, and is related to the brightness of the backlight display. In this embodiment, the scan signal Sc_B is related to the timing of controlling the backlight display.

In this embodiment, each module on the second circuit 240 is arranged on the same circuit board. According to the design requirements, in this embodiment, the panel timing control module 241 and the backlight timing control module 242 in the second circuit 240 can be arranged on the same chip. In other words, the panel timing control module 241 and the backlight timing control module 242 are integrated into the same chip and arranged together on the same circuit board to reduce the production cost.

In some embodiments, according to design requirements, the panel timing control module 241 and the backlight timing control module 242 in the second circuit 240 can be set in different chips. In other words, the panel timing control module 241 and the backlight timing control module 242 are respectively set in different chips and are set together on the same circuit board to reduce production costs.

FIG3 is a schematic diagram of a circuit block of an electronic device according to an embodiment of the present disclosure. Referring to FIG3 , the electronic device 300 includes a panel 310, a backlight module 320, a first circuit 330, and a second circuit 340. The panel 310, the backlight module 320, the first circuit 330, the second circuit 340, the panel data driver circuit 311 and the panel scanning driver circuit 312 included in the electronic device 300 of FIG3 , and the backlight data driver circuit 321 and the backlight scanning driver circuit 322 included in the backlight module 320 can refer to the relevant description of the electronic device 100 and/or the electronic device 200 and be deduced by analogy, so they will not be repeated here.

In the embodiment of FIG. 3 , the electronic device 300 further includes a backlight control circuit. The backlight control circuit is coupled to the backlight data driving circuit 321 and the backlight driving circuit 322. The backlight control circuit can refer to the relevant description of the backlight control circuit 223 of the electronic device 200 and be deduced by analogy, so it is not repeated here. Different from the embodiment of FIG. 2 , in this embodiment, the backlight control circuit can be integrated into the second circuit 340 instead of the backlight module 320, so the backlight control circuit is not shown in FIG. 3 .

It should be noted that in the present embodiment, since the backlight control circuit and the backlight timing control module (for example, the backlight timing control module 242 of FIG. 2 ) are both disposed in the second circuit 340 rather than in the backlight module 320, the backlight control circuit can generate a backlight data drive signal SOT1 and a backlight scan drive signal SOT2 in the second circuit 340 according to the signal output by the backlight timing control module. In this embodiment, the backlight control signal output by the second circuit 340 includes a backlight data drive signal SOT1 and a backlight scan drive signal SOT2, rather than a backlight control signal including a grayscale signal (e.g., the grayscale signal Tx_B of FIG. 2 ) and a scan signal (e.g., the scan signal Sc_B of FIG. 2 ), so that the backlight data drive circuit 321 and the backlight scan drive circuit 322 receive the backlight control signal (i.e., signals SOT1, SOT2) to perform corresponding operations.

In this embodiment, the backlight control circuit can be arranged on the same circuit board as the second circuit 340. According to design requirements, in this embodiment, at least any two of the panel timing control module, the backlight timing control module and the backlight control circuit in the second circuit 340 can be arranged on the same chip. In other words, the panel timing control module and the backlight timing control module, the panel timing control module and the backlight control circuit, or the backlight timing control module and the backlight control circuit can be integrated into the same chip and arranged together on the same circuit board to reduce production costs.

In some embodiments, according to design requirements, any two of the panel timing control module, the backlight timing control module, and the backlight control circuit in the second circuit 340 can be set in different chips. In other words, the panel timing control module, the backlight timing control module, and the backlight control circuit are respectively set in different chips, but can still be set together on the same circuit board to reduce production costs.

FIG4 is a schematic diagram of the operation of the electronic device of the embodiment of FIG1 of the present disclosure. Referring to FIG4 , the electronic device 400 includes a panel 410, a backlight module 420, a first circuit 430, a second circuit 440, and a backlight control circuit 423. The panel 410, the backlight module 420, the first circuit 430, the second circuit 440, the backlight data driver circuit 421 and the backlight scanning driver circuit 422 included in the backlight module 420, the panel timing control module 441 and the backlight timing control module 442 included in the second circuit 440, and the backlight control circuit 423 included in the electronic device 400 of FIG4 can refer to the relevant description of the electronic device 100, the electronic device 200 and/or the electronic device 300 and be deduced by analogy, so it is not repeated here.

In the embodiment of FIG. 4 , the first circuit 430 may include a single chip and be disposed in a first circuit board. The second circuit 440 may include a single chip or multiple chips and may be disposed in a second circuit board different from the first circuit board. The panel 410 may be used as a display panel. The backlight module 420 may be used as a backlight panel. In this embodiment, the backlight control circuit 423 may be a single chip and be disposed in the backlight module 420. In some embodiments, the backlight control circuit 423 may be integrated into one of the chips in the second circuit 440 and be disposed in the second circuit board together with the second circuit 440. The configuration of each circuit and each module bit in the aforementioned different circuit boards, display panels and backlight panels in this embodiment is only an example and is not limited thereto.

In this embodiment, the system circuit module of the first circuit 430 may include a plurality of functional modules M1 to M9, and perform corresponding operations to output sound, a first signal S1, and a second signal S2. Specifically, the first circuit 430 may include a sound interface and decoding module M1, an image receiving device module M2, a sound processing and amplification module M3, an image decoding device module M4, a speaker module M5, an image scaling module M6, an image processing module M7, a display image transmission device module M8, and a backlight image transmission module M9, but the types of modules that the first circuit 430 may include are not limited thereto.

In this embodiment, the sound interface and decoding module M1 is coupled to the sound processing and amplification module M3. The sound processing and amplification module M3 is coupled to the speaker module M5. In this embodiment, the sound interface and decoding module M1, the sound processing and amplification module M3 and the speaker module M5 can control and process the information about the sound transmitted in the electronic device 400.

Specifically, in this embodiment, the sound interface and decoding module M1 can receive the sound data of the user. The sound interface and decoding module M1 can decode the received sound data into a standard format that conforms to the audio file to generate audio information. The sound processing and amplification module M3 can process the audio information output by the sound interface and decoding module M1, for example, by adjusting and amplifying it. The speaker module M5 can convert the processed audio information, for example, by converting electrical energy into sound energy or converting digital signals into analog signals, to output sound.

In the present embodiment, the image receiving device module M2 is coupled to the image decoding device module M4. The image decoding device module M4 is coupled to the image scaling module M6. The image scaling module M6 is coupled to the image processing module M7. The image processing module M7 is coupled to the display image transmission device module M8 and the backlight image transmission module M9. The display image transmission device module M8 is coupled to the panel timing control module 441. The backlight image transmission module M9 is coupled to the backlight timing control module 442. In the present embodiment, the image receiving device module M2, the image decoding device module M4, the image scaling module M6, the image processing module M7, the display image transmission device module M8 and the backlight image transmission module M9 can control and process the information about the image transmitted in the electronic device 400.

Specifically, in this embodiment, the image receiving device module M2 can receive image data from the user. The image decoding device module M4 can receive image data output by the image receiving device module M2. The image decoding device module M4 can perform analog-to-digital conversion on the image data to decode the analog image data into a digital signal format. The image scaling module M6 can scale the decoded image data, for example, converting the image data into a desired image size. The image processing module M7 can adjust the scaled image data according to the human-machine interface, for example, adjusting the image configuration of the image data or converting the format of the image data. The display image transmission device module M8 can use the adjusted image data as display data of the panel 410 (i.e., the second signal S2), and transmit the second signal S2 to the panel timing control module 441 of the second circuit 440. On the other hand, the backlight image transmission module M9 can use the adjusted image data as the luminous data of the backlight module 420 (i.e., the first signal S1), and transmit the first signal S1 to the backlight timing control module 442 of the second circuit 440.

In this embodiment, the backlight timing control module 442 of the second circuit 440 may include a plurality of functional modules M10 to M15, and perform corresponding operations to output the backlight control signal S3 according to the first signal S1. Specifically, the backlight timing control module 442 may include a backlight image data receiver module M10, a backlight image data processing conversion module M11, a backlight frequency modulation/dimming module M12, a backlight test module M13, a backlight compensation memory module M14, and an AM/PM (Active Matrix/ Passive Matrix) backlight drive mode switch module M15, but the functional modules that the backlight timing control module 442 may include are not limited thereto.

In the present embodiment, the backlight image data receiver module M10 is coupled to the backlight image transmission module M9 and the backlight image data processing conversion module M11. The backlight image data processing conversion module M11 is coupled to the backlight frequency modulation/dimming module M12. The backlight frequency modulation/dimming module M12 is coupled to the backlight test module M13 and the backlight compensation memory module M14. The backlight compensation memory module M14 is coupled to the AM/PM backlight driving mode switch module M15. In the present embodiment, each module M10 to M15 in the backlight timing control module 442 can process information about the luminous data of the backlight module 420 transmitted in the electronic device 400.

Specifically, in the present embodiment, the backlight image data receiver module M10 can receive the first signal S1. The backlight image data processing conversion module M11 can receive the luminous data (i.e., the first signal S1) output by the backlight image data receiver module M10. The backlight image data processing conversion module M11 can perform image processing on the luminous data, such as spatially amplifying or reducing the luminous data. In some cases, the backlight test module M13 can perform a test operation, such as an aging test operation. The backlight test module M13 can be used to test and calibrate the light panel brightness to confirm that the light panel brightness function of the backlight module 420 is correct.

Continuing with the above description, in this embodiment, the backlight frequency modulation/dimming module M12 can receive data output by the backlight image data processing conversion module M11 and/or test data output by the backlight test module M13. The backlight frequency modulation/dimming module M12 can dim the received data to adjust the brightness of the luminous data. The backlight frequency modulation/dimming module M12 can also modulate the received data to convert the luminous data into different frequencies according to user needs and backlight brightness information, for example, converting the frequency of the luminous data from 60 Hz to 120 Hz. The backlight compensation memory module M14 can compensate the modulated and/or dimmed luminous data, for example, to compensate the backlight uniformity of the backlight image data. The AM/PM backlight drive mode switch module M15 can switch between two or more backlight control methods to simultaneously support an active (Active Matrix) backlight module 420 and a passive (Passive Matrix) backlight module 420. The AM/PM backlight drive mode switch module M15 can provide compensated luminous data (i.e., backlight control signal S3) according to the switched backlight control method.

In this embodiment, the backlight control circuit 423 can generate the backlight data drive signal SOT1 and the backlight scan drive signal SOT2 according to the backlight control signal S3. The backlight scan drive circuit 422 can drive the light-emitting unit according to the backlight scan drive signal SOT2. The backlight data drive circuit 421 can control the brightness of the light-emitting unit according to the backlight data drive signal SOT1. In this embodiment, the backlight data drive circuit 421 can feed back the light-emitting result to the backlight control circuit 423, but is not limited thereto.

In this embodiment, the panel timing control module 441 of the second circuit 440 may include a plurality of functional modules M16 to M20, and perform corresponding operations to output the panel control signal S4 according to the second signal S2. Specifically, the panel timing control module 441 includes a display screen test module M16, a display image receiving device module M17, an image processing module M18, a source driver data transmission module M19, and a gate driver data transmission module M20, but the functional modules that the panel timing control module 441 may include are not limited thereto.

In the present embodiment, the display screen test module M16 is coupled to the display image receiving device module M17. The display image receiving device module M17 is coupled to the display image transmitting device module M8 and the image processing module M18. The image processing module M18 is coupled to the source driver data transmission module M19 and the gate driver data transmission module M20. The source driver data transmission module M19 is coupled to the panel 410. In the present embodiment, each module M16 to M20 in the panel timing control module 441 can process information about the display data of the panel 410 transmitted in the electronic device 400.

Specifically, in this embodiment, in some cases, the display test module M16 can perform a test operation, such as an aging test operation. The display test module M16 can generate test image data of the panel 410 to confirm that the display function of the panel 410 is normal. The display image receiving device module M17 can receive the display data (i.e., the second signal S2) output by the display image transmission device module M8, and/or the test data output by the display test module M16. The image processing module M18 can receive the data output by the display image receiving device module M17. The image processing module M18 can process the display data, such as defect correction (demura) and/or image dithering (dithering) and other reinforcement and enhancement operations. The source driver data transmission module M19 can receive data output by the image processing module M18. The source driver data transmission module M19 can transmit the data driving signal Tx_A of the panel control signal S4 to the panel 410. The gate driver data transmission module M20 can receive data output by the image processing module M18. The gate driver data transmission module M20 can transmit the scan driving signal Sc_A of the panel control signal S4 to the panel 410.

In the present embodiment, each of the functional modules M1 to M20 mentioned above may be, for example, a port, a receiver, a speaker, a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors (Microprocessors), digital signal processors (Digital Signal Processors, DSPs), programmable controllers, application specific integrated circuits (Application Specific Integrated Circuits, ASICs), programmable logic devices (Programmable Logic Devices, PLDs) or other similar devices or combinations of these devices, which can load and execute computer program-related firmware or software to implement the corresponding operating functions mentioned above.

In this embodiment, the panel 410 may include a panel data driver circuit 411 and a panel scan driver circuit 412. The panel data driver circuit 411 may include a plurality of source drivers 411_1 and 411_2. The panel scan driver circuit 412 may include a plurality of gate drivers 412_1 to 412_3 and a display screen M23 including a plurality of display units. The number and arrangement of the source drivers 411_1 and 411_2 and the gate drivers 412_1 to 412_3 in this embodiment are merely examples and are not limited thereto.

In this embodiment, multiple source drivers 411_1 and 411_2 may be, but are not limited to, coupled in series. Specifically, source driver 411_1 is coupled to source driver data transmission module M19, source driver 411_2, and display screen M23. Source driver 411_2 is coupled to display screen M23. In this embodiment, source driver 411_1 may drive multiple display units in display screen M23 according to data drive signal Tx_A of panel control signal S4, so that the display units change their transmittance according to data drive signal Tx_A. The source driver 411_2 can refer to the relevant description of the source driver 411_1 and be deduced by analogy, so it is not repeated here.

In this embodiment, multiple gate drivers 412_1 to 412_3 may be, but are not limited to, coupled in parallel. Specifically, the gate driver 412_1 is coupled to the gate driver data transmission module M20 and the display screen M23. The gate driver 412_1 may drive multiple display units in the display screen M23 according to the scan drive signal Sc_A of the panel control signal S4. In this embodiment, the gate drivers 412_2 and 412_3 may refer to the relevant description of the gate driver 412_1 and be inferred by analogy, so they will not be repeated here.

In the present embodiment, the first signal S1 may be, for example, a signal that complies with the Serial Peripheral Interface Bus (SPI) specification. In some embodiments, the first signal S1 may be transmitted to the backlight timing control module 442 via an Inter-Integrated Circuit (I²C), but the present embodiment is not limited thereto. In the present embodiment, the second signal S2 may be, for example, a signal that complies with the V-by-One (V*1) specification. In some embodiments, the second signal S2 may be transmitted to the panel timing control module 441 via a transmission line that complies with V-by-One, but the present embodiment is not limited thereto.

FIG5 is a schematic diagram of a circuit block of an electronic device according to another embodiment of the present disclosure. The type of the electronic device 500 in FIG5 may be the same as the type of the electronic device in FIG1, so it will not be repeated. The following will use a display device as the electronic device 500 or the splicing device to illustrate the present disclosure, but the present disclosure is not limited thereto.

In this embodiment, the electronic device 500 includes a panel 510, a backlight module 520, a first circuit 530, and a second circuit 540. The first circuit 530 is coupled to the backlight module 520. The second circuit 540 is coupled between the panel 510 and the first circuit 530.

In this embodiment, the configuration of the backlight module 520 and the panel 510 may be similar to that of the backlight module 120 and the panel 110 in the embodiment shown in FIG. 1 , and thus will not be repeated.

In this embodiment, the first circuit 530 includes a system circuit module 531 and a backlight timing control module 532, and the second circuit 540 includes a panel timing control module 541. The panel timing control module 541 is coupled between the system circuit module 531 and the panel 510. The system circuit module 531 is coupled to the backlight timing control module 532. The system circuit module 531 can output a first signal S1 to the backlight timing control module 532 to indicate the generation of a clock signal (i.e., a backlight control signal S3) associated with the backlight module 520. The panel timing control module 541 is coupled between the system circuit module 531 and the panel 510. In this embodiment, the system circuit module 531 can output the second signal S2 to the second circuit 540, and the panel timing control module 541 can generate a clock signal (i.e., the panel control signal S4) related to the panel 510 according to the second signal S2. The types and functions of the system circuit module 531, the backlight timing control module 532, and the panel timing control module 541 can be similar to the system circuit module 131, the backlight timing control module 142, and the panel timing control module 141 in the embodiment shown in FIG. 1, and thus will not be repeated.

In this embodiment, the backlight timing control module 532 receives the first signal S1 transmitted by the system circuit module 531 and provides the backlight control signal S3 to the backlight module 520. The panel timing control module 541 receives the second signal S2 transmitted by the system circuit module 531 and provides the panel control signal S4 to the panel 510. In other words, the backlight timing control module 532 and the system circuit module 531 are integrated into the same first circuit 530. The backlight timing control module 532 can receive the first signal S1 in the same circuit block to perform the corresponding operation.

It is worth mentioning that by integrating the backlight timing control module 532 and the system circuit module 531 together through the first circuit 530, it is possible to avoid setting the backlight timing control module 532 in an additional separate circuit, thereby reducing the production cost. In addition, the first signal S1 can be transmitted in the same circuit block through the integrated backlight timing control module 532 and the system circuit module 531, thereby reducing the line configuration between the two aforementioned, and at the same time, the circuit design flexibility of the second circuit 540 and the integrated circuit (i.e., the first circuit 530) can be increased.

FIG6 is a schematic diagram of a circuit block of an electronic device according to another embodiment of the present disclosure. Referring to FIG6 , the electronic device 600 includes a panel 610, a backlight module 620, a first circuit 630, and a second circuit 640. The panel 610, the backlight module 620, the first circuit 630, the second circuit 640, the system circuit module 631 and the backlight timing control module 632 included in the first circuit 630, and the panel timing control module 641 included in the second circuit 640 included in the electronic device 600 of FIG6 can refer to the relevant descriptions in the above paragraphs and be deduced by analogy, so they will not be repeated here.

In this embodiment, the panel 610 includes a panel data driver circuit 611 and a panel scan driver circuit 612. The panel data driver circuit 611 and the panel scan driver circuit 612 of the embodiment of FIG. 6 can refer to the relevant description of the panel data driver circuit 211 and the panel scan driver circuit 212 of the embodiment of FIG. 2 and can be deduced by analogy, so they are not repeated here.

In the present embodiment, the backlight module 620 includes a backlight data driver circuit 621 and a backlight scanning driver circuit 622. In addition, the backlight control circuit 623 is disposed in the backlight module 620, rather than in the first circuit 630 or the second circuit 640. The backlight data driver circuit 621 is coupled to the backlight driver circuit 622. In the present embodiment, the backlight data driver circuit 621, the backlight scanning driver circuit 622 and the backlight control circuit 623 can refer to the relevant description of the backlight data driver circuit 221, the backlight scanning driver circuit 222 and the backlight control circuit 223 of the embodiment of FIG. 2 and can be deduced by analogy, so it is not repeated here.

In this embodiment, the backlight control signal S3 includes a grayscale signal Tx_B and a scan signal Sc_B. In this embodiment, the grayscale signal Tx_B can be, for example, a low voltage differential signal (LVDS) or a mini-LVDS to indicate data related to the backlight display. In this embodiment, the scan signal Sc_B is related to the timing of controlling the backlight display.

In this embodiment, the system circuit module 631 and the backlight timing control module 632 on the first circuit 630 are both arranged on the same circuit board. According to design requirements, in this embodiment, the system circuit module 631 and the backlight timing control module 632 in the first circuit 630 can be arranged on the same chip. In other words, the system circuit module 631 and the backlight timing control module 632 are integrated into the same chip and arranged together on the same circuit board to reduce production costs.

In some embodiments, according to design requirements, the system circuit module 631 and the backlight timing control module 632 in the first circuit 630 can be set in different chips. In other words, the system circuit module 631 and the backlight timing control module 632 are respectively set in different chips, but are still set together on the same circuit board to reduce production costs.

FIG7 is a schematic diagram of a circuit block of an electronic device according to another embodiment of the present disclosure. Referring to FIG7 , the electronic device 700 includes a panel 710, a backlight module 720, a first circuit 730, and a second circuit 740. The panel 710, the backlight module 720, the first circuit 730, the second circuit 740, the panel data driver circuit 711 and the panel scanning driver circuit 712 included in the electronic device 700 of FIG7 , and the backlight data driver circuit 721 and the backlight scanning driver circuit 722 included in the backlight module 720 can refer to the relevant description of the electronic device 300, the electronic device 500, and/or the electronic device 600 and be deduced by analogy, so they will not be repeated here.

In the embodiment of FIG. 7 , the electronic device 700 further includes a backlight control circuit integrated in the first circuit 730, so the backlight control circuit is not shown in FIG. 7 . The backlight control circuit is coupled to the backlight data driving circuit 721 and the backlight driving circuit 722. The backlight control circuit can refer to the relevant description of the backlight control circuit 623 of the electronic device 600 and be deduced by analogy, so it is not repeated here.

It should be noted that in the present embodiment, since the backlight control circuit and the backlight timing control module (for example, the backlight timing control module 632 of FIG. 6 ) are both disposed in the first circuit 730 rather than in the backlight module 720, the backlight control circuit can generate a backlight data drive signal SOT1 and a backlight scan drive signal SOT2 in the first circuit 730 according to the signal output by the backlight timing control module. In this embodiment, the backlight control signal output by the first circuit 730 includes a backlight data drive signal SOT1 and a backlight scan drive signal SOT2, rather than a backlight control signal including a grayscale signal (e.g., the grayscale signal Tx_B of FIG. 6 ) and a scan signal (e.g., the scan signal Sc_B of FIG. 6 ), so that the backlight data drive circuit 721 and the backlight scan drive circuit 722 receive the backlight control signal (i.e., signals SOT1, SOT2) to perform corresponding operations.

In this embodiment, the backlight control circuit can be arranged on the same circuit board as the first circuit 730. According to design requirements, in this embodiment, at least any two of the system circuit module, the backlight timing control module, and the backlight control circuit in the first circuit 730 can be arranged on the same chip. In other words, the system circuit module and the backlight timing control module, the system circuit module and the backlight control circuit, or the backlight timing control module and the backlight control circuit are integrated into the same chip and arranged together on the same circuit board to reduce production costs.

In some embodiments, according to design requirements, any two of the system circuit module, the backlight timing control module, and the backlight control circuit in the first circuit 730 may be arranged in different chips. In other words, the system circuit module and the backlight timing control module, the system circuit module and the backlight control circuit, or the backlight timing control module and the backlight control circuit are arranged in different chips respectively, and are arranged together on the same circuit board to reduce production costs.

FIG8 is a schematic diagram of the operation of the electronic device of the embodiment of FIG5 of the present disclosure. Referring to FIG8 , the electronic device 800 includes a panel 810 , a backlight module 820 , a first circuit 830 , a panel timing control module 841 included in a second circuit 840 , and a backlight control circuit 823 . The electronic device 800 of FIG8 includes a panel 810, a backlight module 820, a first circuit 830, a panel timing control module 841, a backlight data driver circuit 821 and a backlight driver circuit 822 included in the backlight module 820, a system circuit module 831 and a backlight timing control module 832 included in the first circuit 830, and a backlight control circuit 823, which can refer to the relevant descriptions of the electronic device 500, the electronic device 600 and/or the electronic device 700 and be deduced by analogy, and thus will not be repeated here.

In addition, in the embodiment of FIG8, the system circuit module 831 may include multiple functional modules M1 to M9, the backlight timing control module 832 may include multiple functional modules M11 to M15, and the panel timing control module 841 may include multiple functional modules M16 to M20. Since the functions and execution sequence of each functional module M1 to M20 in the embodiment of FIG8 are similar to those in the embodiment shown in FIG4, they are not repeated here.

Similarly, in this embodiment, the configuration and functions of the panel 810 and the backlight module 820 can refer to the relevant description of the electronic device 400 and be deduced by analogy, so they are not repeated here.

In summary, the electronic device disclosed herein can integrate the backlight timing control module with the panel timing control module or the system circuit module to perform corresponding operations in the integrated circuit. In this way, the integrated configuration of the backlight timing control module can save additional independent configurations, thereby reducing costs and increasing the circuit design flexibility of the electronic device. In some embodiments, by integrating the backlight control circuit into the backlight module, the first circuit or the second circuit, additional line configuration can be saved. In some embodiments, by arranging the backlight timing control module, the panel timing control module and the system circuit module in the same or different chips and on corresponding circuit boards, the circuit design flexibility of the electronic device can be improved to reduce production costs.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

100, 200, 300, 400, 500, 600, 700, 800: electronic device 110, 210, 310, 410, 510, 610, 710, 810: panel 120, 220, 320, 420, 520, 620, 720, 820: backlight module 130, 230, 330, 430, 530, 630, 730, 830: first circuit 131, 531, 631, 831: system circuit module 140, 240, 340, 440, 540, 640, 740, 840: second circuit 141, 241, 441, 541, 641: panel timing control module 142, 242, 442: backlight timing control module 211, 311, 611, 711: panel data drive circuit 212, 312, 612, 712: panel scan drive circuit 221, 321, 421, 621, 721, 821: backlight data drive circuit 222, 322, 422, 622, 722, 822: backlight scan drive circuit 223, 423, 623, 823: backlight control circuit 532, 632, 832: backlight timing control module Tx_A: data drive signal Sc_A: scan drive signal Sc_B: scan signal Tx_B: grayscale signal SOT1: backlight data drive signal SOT2: backlight driver drive signal M1~M20: functional module 411_1~411_2: source driver 412_1~412_3: gate driver 811_1~811_2: source driver 812_1~812_3: gate driver M23: display S1: first signal S2: second signal S3: backlight control signal S4: panel control signal

FIG. 1 is a schematic diagram of a circuit block of an electronic device according to an embodiment of the present disclosure. FIG. 2 is a schematic diagram of a circuit block of an electronic device according to an embodiment of the present disclosure. FIG. 3 is a schematic diagram of a circuit block of an electronic device according to an embodiment of the present disclosure. FIG. 4 is a schematic diagram of the operation of the electronic device according to the embodiment of FIG. 1 of the present disclosure. FIG. 5 is a schematic diagram of a circuit block of an electronic device according to another embodiment of the present disclosure. FIG. 6 is a schematic diagram of a circuit block of an electronic device according to another embodiment of the present disclosure. FIG. 7 is a schematic diagram of a circuit block of an electronic device according to another embodiment of the present disclosure. FIG. 8 is a schematic diagram of the operation of the electronic device according to the embodiment of FIG. 5 of the present disclosure.

100: Electronic devices

110: Panel

120: Backlight module

130: First circuit

131: System circuit module

140: Second circuit

141: Panel timing control module

142: Backlight timing control module

S1: First signal

S2: Second signal

S3: Backlight control signal

S4: Panel control signal

Claims (12)

An electronic device includes: a panel; a backlight module, which is arranged corresponding to the panel and includes a backlight data driving circuit; a first circuit, which includes a system circuit module; a second circuit, which couples the first circuit, the panel and the backlight module, and includes a panel timing control module and a backlight timing control module; and a backlight control circuit, which couples the backlight timing control module and the backlight data driving circuit, wherein the backlight timing control module receives the system timing control module. The first signal transmitted by the system circuit module is transmitted and a backlight control signal is provided to the backlight module. The panel timing control module receives the second signal transmitted by the system circuit module and provides a panel control signal to the panel. The backlight control circuit generates a backlight data drive signal according to the backlight control signal and outputs the backlight data drive signal to the backlight data drive circuit. The backlight data drive circuit feeds back a lighting result to the backlight control circuit. An electronic device as described in claim 1, wherein the second circuit is arranged on a circuit board, wherein the panel timing control module and the backlight timing control module are arranged on different chips. An electronic device as described in claim 1, wherein the second circuit is arranged on a circuit board, wherein the panel timing control module and the backlight timing control module are arranged on the same chip. An electronic device as described in claim 1, wherein the backlight module comprises: at least one light-emitting unit; and a backlight scanning drive circuit, wherein the backlight data drive circuit and the backlight scanning drive circuit drive the at least one light-emitting unit according to the backlight control signal. An electronic device as described in claim 4, wherein the backlight control circuit is coupled to the backlight scanning driver circuit, and the backlight control circuit outputs a backlight scanning driver signal to the backlight scanning driver circuit according to the backlight control signal, wherein the backlight control signal includes a grayscale signal and a scanning signal. An electronic device as described in claim 4, wherein the backlight control circuit is coupled to the backlight scanning drive circuit, and the backlight control circuit and the second circuit are arranged on the same circuit board. An electronic device includes: a panel; a backlight module, which is arranged corresponding to the panel and includes a backlight data driving circuit; a first circuit, which is coupled to the backlight module, and the first circuit includes a system circuit module and a backlight timing control module; a second circuit, which is coupled between the panel and the first circuit, and the second circuit includes a panel timing control module; and a backlight control circuit, which is coupled to the backlight timing control module and the backlight data driving circuit, and the backlight timing control module The group receives the first signal transmitted by the system circuit module and provides a backlight control signal to the backlight module, the panel timing control module receives the second signal transmitted by the system circuit module and provides a panel control signal to the panel, wherein the backlight control circuit generates a backlight data drive signal according to the backlight control signal, and outputs the backlight data drive signal to the backlight data drive circuit, and the backlight data drive circuit feeds back a lighting result to the backlight control circuit. An electronic device as described in claim 7, wherein the first circuit is arranged on a circuit board, wherein the system circuit module and the backlight timing control module are arranged on different chips. An electronic device as described in claim 7, wherein the first circuit is arranged on a circuit board, wherein the system circuit module and the backlight timing control module are arranged on the same chip. The electronic device as described in claim 7 is characterized in that the backlight module includes: at least one light-emitting unit; and a backlight scanning drive circuit, wherein the backlight data drive circuit and the backlight scanning drive circuit drive the at least one light-emitting unit according to the backlight control signal. The electronic device as claimed in claim 10 is characterized in that the backlight control circuit is coupled to the backlight scanning driver circuit, and the backlight control circuit outputs a backlight scanning driver signal to the backlight scanning driver circuit according to the backlight control signal, wherein the backlight control signal includes a grayscale signal and a scanning signal. The electronic device as described in claim 10 is characterized in that the backlight control circuit is coupled to the backlight scanning drive circuit, and the backlight control circuit and the first circuit are arranged on the same circuit board.