CN219105470U - Electronic whiteboard system based on eDP interface - Google Patents
Electronic whiteboard system based on eDP interface Download PDFInfo
- Publication number
- CN219105470U CN219105470U CN202223427289.4U CN202223427289U CN219105470U CN 219105470 U CN219105470 U CN 219105470U CN 202223427289 U CN202223427289 U CN 202223427289U CN 219105470 U CN219105470 U CN 219105470U
- Authority
- CN
- China
- Prior art keywords
- backlight
- edp interface
- edp
- electronic whiteboard
- main channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 101000805129 Homo sapiens Protein DPCD Proteins 0.000 description 2
- 102100037836 Protein DPCD Human genes 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Time-Division Multiplex Systems (AREA)
Abstract
The electronic whiteboard system based on the eDP interface comprises a main board and a display module, wherein the display module comprises a TCON circuit board; an eDP interface is arranged in the TCON circuit board and used for transmitting eDP data; the eDP interface comprises a main channel, wherein the main channel comprises two main channel data line pairs, and each main channel data line pair comprises two main channel data lines; the eDP interface includes an auxiliary channel including an auxiliary channel data line pair including two auxiliary channel data lines. By using the eDP interface, the RK series chip can be used by the motherboard, and compared with the existing motherboard chip, the RK series chip has lower cost. After the eDP interface is used, only the Windows system is used, frequent switching between the Windows system and the android system is not needed, and touch delay can be reduced. The main channel may transmit video data, audio data, and timing signals. The auxiliary channels are used for link management, device control, and transmission of EDID data.
Description
Technical Field
The application relates to the technical field of electronic whiteboards, for example to an electronic whiteboard system based on an eDP interface.
Background
Currently, commercial electronic whiteboards such as educational machines and conference machines commonly share a large-size display screen and a TCON circuit board, and connect the main board and the TCON circuit board through a VbyOne interface. The SoC main chip arranged on the main board can select fewer types and has high price. In addition, the commercial electronic whiteboard uses a dual system, the main system is an android system, the secondary system is a Windows system, and the main system and the secondary system can be frequently switched in the process of using the electronic whiteboard, so that touch delay is high. The existing electronic whiteboard has the problems that the types of the selectable models of the main chip are less, the price is high, and the touch delay is high.
Disclosure of Invention
The purpose of the application is that: the electronic whiteboard system based on the eDP interface can solve the problems that the existing electronic whiteboard has fewer types selectable by a main chip, is high in price and has high touch delay.
In order to achieve the above purpose, the present application provides an electronic whiteboard system based on an eDP interface, where the electronic whiteboard system includes a motherboard and a display module, and the display module includes a TCON circuit board; an eDP interface is arranged in the TCON circuit board and used for transmitting eDP data; the eDP interface comprises a main channel, wherein the main channel comprises two main channel data line pairs, and each main channel data line pair comprises two main channel data lines; the eDP interface includes an auxiliary channel including an auxiliary channel data line pair including two auxiliary channel data lines.
Preferably, the display module further comprises a display screen, wherein the display screen is electrically connected with the TCON circuit board, and the display screen is used for receiving image signals and displaying the image signals.
Preferably, the electronic whiteboard system further comprises a power panel, wherein the power panel is electrically connected with the main board and is used for supplying power to the main board.
Preferably, the display module further includes a backlight driving circuit and a backlight, the backlight is electrically connected with the backlight driving circuit, the backlight driving circuit is electrically connected with the power panel, the backlight driving circuit is used for driving the backlight, and the backlight is used for providing a light source for the display screen.
Preferably, the electronic whiteboard system further comprises a signal source, wherein the signal source is connected with the main board and is used for sending image signals to the main board.
Preferably, the eDP interface includes a display screen power supply line, and the display screen power supply line is used for transmitting a display screen power supply voltage.
Preferably, the eDP interface includes a hot plug detection line, where the hot plug detection line is used to detect a connection state of the display screen.
Preferably, the eDP interface includes a backlight on line for turning on the backlight, a brightness adjustment line for adjusting brightness of the backlight, and a backlight power supply line for supplying power to the backlight.
The electronic whiteboard system based on the eDP interface comprises a main board and a display module, wherein the display module comprises a TCON circuit board; an eDP interface is arranged in the TCON circuit board and used for transmitting eDP data; the eDP interface comprises a main channel, wherein the main channel comprises two main channel data line pairs, and each main channel data line pair comprises two main channel data lines; the eDP interface includes an auxiliary channel including an auxiliary channel data line pair including two auxiliary channel data lines. By using the eDP interface, the RK series chip can be used by the motherboard, and compared with the existing motherboard chip, the RK series chip has lower cost. After the eDP interface is used, only the Windows system is used, frequent switching between the Windows system and the android system is not needed, and touch delay can be reduced. The main channel may transmit video data, audio data, and timing signals. The auxiliary channels are used for link management, device control, and transmission of EDID data.
Drawings
FIG. 1 is a block diagram schematically illustrating a structure of an eDP based electronic whiteboard system according to an embodiment;
fig. 2 is a schematic diagram of an eDP interface according to an embodiment.
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any module and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In one embodiment, referring to fig. 1-2, fig. 1 is a schematic block diagram of an electronic whiteboard system based on an eDP interface according to an embodiment of the present application, and fig. 2 is a schematic block diagram of the eDP interface according to an embodiment of the present application. The electronic whiteboard system comprises a main board 1 and a display module, wherein the display module comprises a TCON circuit board 2; an eDP interface 21 is disposed in the TCON circuit board 2, and the eDP interface 21 is used for transmitting eDP data.
The eDP interface 21 is capable of receiving eDP data sent from the motherboard 1 and providing the eDP data to other parts of the TCON circuit board 2 for processing. The eDP interface 21 can send eDP data of other parts in the TCON circuit 2 to the motherboard 1.
An eDP interface 21 is provided in the TCON circuit board 2, and the eDP interface 21 can support three kinds of motherboard chips of M-star, MTK, and HiSi, and the eDP interface 21 can also support inexpensive motherboard chips of RK series, such as RK3588 motherboard chips.
Compared with the case that the eDP interface 21 is not used and needs to be frequently switched between the Windows system and the android system, the touch delay can be reduced by only using the Windows system after using the eDP interface 21.
The eDP interface 21 includes a main channel including two main channel data line pairs, each of which includes two main channel data lines.
The eDP interface 21 has two main channel data line pairs, which are a first main channel data line pair 211 and a second main channel data line pair 212, respectively, where the first main channel data line pair 211 and the second main channel data line pair 212 each include a pair of differential signal lines, and the main channels adopt an ac coupling technology, so that the transmitting end and the receiving end have different common mode voltages. The main channel adopts ANSI 8bit/10bit to encode, which can improve the correctness of data transmission. The transmission rate of the main channel is high, and the working rate can reach 1.62Gbps/2.7Gbps/5.4Gbps.
The higher the resolution of the display screen of the electronic whiteboard and the greater the number of color bits, the greater the number of main channel data line pairs.
The main channel may transmit video data, audio data, and timing signals.
The eDP interface 21 includes an auxiliary channel including an auxiliary channel data line pair 213, and the auxiliary channel data line pair 213 includes two auxiliary channel data lines.
The signal of the bidirectional half-duplex transmission channel adopts an alternating-current coupling differential transmission mode, and the signal adopts Manchester coding and has a transmission distance of 15 m. The delay time of each transmission task is less than 500 mu s.
The auxiliary channel is connected with an EDID (Extended Display Identification Data ) memory and a DPCD (DisplayPort Configuration Data, image display interface configuration data) memory, and reads and writes by a bus mode. The EDID memory is used to store display parameters. The DPCD memory is used for storing eDP interface configuration data, and is connected with the link management layer and used for configuration of the link.
The auxiliary channels are used for link management, device control, and transmission of EDID data.
The electronic whiteboard system based on the eDP interface comprises a main board 1 and a display module, wherein the display module comprises a TCON circuit board 2; an eDP interface 21 is disposed in the TCON circuit board 2, and the eDP interface 21 is used for transmitting eDP data. By using the eDP interface 21, the main board 1 can use RK-series chips, which are lower in cost than existing main board chips. Only the Windows system is used after the eDP interface 21 is used, frequent switching between the Windows system and the android system is not required, and touch delay can be reduced. The main channel may transmit video data, audio data, and timing signals. The auxiliary channels are used for link management, device control, and transmission of EDID data.
In one embodiment, referring to fig. 1, the display module further includes a display screen 3, the display screen 3 is electrically connected to the TCON circuit board 2, and the display screen 3 is configured to receive an image signal and display the image signal.
Preferably, the display 3 is a liquid crystal panel.
The display 3 receives an image signal sent from the TCON circuit board 2, and the image signal is an eDP signal.
When the user touches the display screen 3, the display screen 3 receives and parses the touch signal, and the display screen 3 performs a corresponding operation according to the touch signal.
For example, when the user clicks a window closing button in the display screen 3, the window in the display screen 3 closes, and when the user's finger slides from left to right or from top to bottom on the display screen 3, the display screen 3 switches pages.
As described above, the display module further includes the display screen 3, the display screen 3 is electrically connected to the TCON circuit board 2, and the display screen 3 is configured to receive the image signal and display the image signal. The display 3 receives an image signal sent from the TCON circuit board 2, and the image signal is an eDP signal.
In one embodiment, referring to fig. 1, the electronic whiteboard system further includes a power board 4, the power board 4 is electrically connected to the motherboard 1, and the power board 4 is configured to supply power to the motherboard 1.
The power panel 4 is electrically connected to an external ac power source, the external ac power source supplies an ac voltage of 90-240V to the power panel 4, and the power panel 4 converts the ac voltage supplied by the external ac voltage to obtain a plurality of dc voltages. The power board 4 supplies a first direct current voltage to the main board 1, the magnitude of the first direct current voltage being 3.3V, 5V, or 12V.
The power panel 4 converts an ac voltage supplied from an external ac power source into a first dc voltage that drives the main board 1 to operate.
As described above, the electronic whiteboard system further includes a power board 4, the power board 4 is electrically connected to the motherboard 1, and the power board 4 is configured to supply power to the motherboard 1. The power panel 4 converts an ac voltage supplied from an external ac power source into a first dc voltage that drives the main board 1 to operate.
In one embodiment, referring to fig. 2, the display module further includes a backlight driving circuit 6 and a backlight 7, the backlight 7 is electrically connected to the backlight driving circuit 6, the backlight driving circuit 6 is electrically connected to the power panel 4, the backlight driving circuit 6 is used for driving the backlight 7, and the backlight 7 is used for providing a light source for the display screen 3.
The power panel 4 converts an ac voltage provided by an external ac power supply into a second dc voltage, and the backlight driving circuit 6 receives the second dc voltage provided by the power panel 4. Preferably, the second direct voltage is 24V.
The backlight driving circuit 6 can drive the backlight 7 so that the backlight 7 starts to operate, and the backlight driving circuit 6 can adjust the luminance of the backlight 7. The backlight 7 illuminates the display screen 3 so that the user can observe the content of the display screen 3.
The backlight 7 may be a light emitting diode, or a fluorescent tube, wherein the light emitting diode is a point light source, and the fluorescent tube is a linear light source.
As described above, the display module further includes the backlight driving circuit 6 and the backlight 7, the backlight 7 is electrically connected to the backlight driving circuit 6, the backlight driving circuit 6 is electrically connected to the power board 4, the backlight driving circuit 6 is used for driving the backlight 7, and the backlight 7 is used for providing a light source for the display screen 3. The backlight driving circuit 6 can drive the backlight 7 so that the backlight 7 starts to operate, and the backlight driving circuit 6 can adjust the luminance of the backlight 7. The backlight 7 illuminates the display screen 3 so that the user can observe the content of the display screen 3.
In one embodiment, referring to fig. 1, the electronic whiteboard system further comprises a signal source 5, the signal source 5 is connected to the motherboard 1, and the signal source 5 is configured to send an image signal to the motherboard 1.
The signal source 5 may be a computer, a video camera, or a mobile phone.
The signal source 5 may transmit an image signal to the main board 1, and the signal source 5 may also transmit a control signal to the main board 1. The control signal includes a signal for controlling an external device, such as a speaker control signal for controlling a speaker to emit a warning tone, and the external device performs a corresponding operation after receiving the control signal.
Illustratively, the main board 1 sends a speaker control signal to the speaker, which emits a warning tone according to the speaker control signal.
The image signal is an eDP signal, and the main board 1 processes the image signal after receiving the image signal.
As described above, the electronic whiteboard system further includes a signal source 5, the signal source 5 is connected to the motherboard 1, and the signal source 5 is configured to send an image signal to the motherboard 1. The image signal is an eDP signal, and the main board 1 processes the image signal after receiving the image signal.
In one embodiment, referring to fig. 2, the eDP interface 21 includes a supply line 214, and the supply line 214 is used to transmit a supply voltage of the display.
The display power supply line 214 receives a display power supply voltage supplied from the main board 1, preferably, a direct current voltage of 12V.
The display supply voltage can be supplied to the display 3 via the display supply line 214 so that the display 3 can be turned on and operated.
As described above, the eDP interface 21 includes the display supply line 214, and the display supply line 214 is used to transmit the display supply voltage, and the display supply voltage can be supplied to the display 3 through the display supply line 214, so that the display 3 can be turned on and operated.
In one embodiment, referring to fig. 2, the eDP interface 21 includes a hot plug detection line 215, and the hot plug detection line 215 is used to detect a connection state of the display screen 3.
The hot plug detection line 215 is a unidirectional data line, the hot plug detection line 215 is used for transmitting a hot plug signal, when the display screen 3 is turned on, the hot plug signal sent by the hot plug detection line 215 to the main board 1 is at a high level, and after the main board 1 detects the high-level hot plug signal, an image signal is sent to the TCON circuit board 2. When the display screen 3 is turned off, the hot plug signal sent by the hot plug detection line 215 to the motherboard 1 is at a low level, the motherboard 1 does not send an image signal to the TCON circuit board 2 after detecting the hot plug signal at the low level, the motherboard 1 is in a waiting state, and when the hot plug signal is converted from the low level to the high level, the motherboard 1 sends the image signal to the TCON circuit board 2.
When the display screen 3 is turned on, the display screen 3 and the main board 1 are in a connected state, and when the display screen 3 is turned off, the display screen 3 and the main board 1 are in a disconnected state. The hot plug line 215 can detect whether the display 3 is in the connected state or the disconnected state, and the main board 1 transmits or does not transmit an image signal according to the connected state of the display 3.
As described above, the eDP interface 21 includes the hot plug detection line 215, and the hot plug detection line 215 is used to detect the connection state of the display screen 3. The hot plug line 215 can detect whether the display 3 is in the connected state or the disconnected state, and the main board 1 transmits or does not transmit an image signal according to the connected state of the display 3.
In one embodiment, referring to fig. 2, the eDP interface 21 includes a backlight on line 216, a brightness adjustment line 217, and a backlight power supply line 218, the backlight on line 216 is used to turn on the backlight 7, the brightness adjustment line 217 is used to adjust the brightness of the backlight 7, and the backlight power supply line 218 is used to supply power to the backlight 7.
When the luminance of the backlight 7 is low, the luminance of the backlight 7 is increased by the luminance adjustment line 217, and when the luminance of the backlight 7 is high, the luminance of the backlight 7 is decreased by the luminance adjustment line 217.
When the backlight 7 is started, the backlight power supply line 218 supplies power to the backlight 7, and when the backlight 7 is turned off, the backlight power supply line 218 stops supplying power to the backlight 7.
The backlight 7 can be turned on and off by the backlight on line 216, the luminance of the backlight 7 can be adjusted by the luminance adjustment line 217, and the backlight 7 can be supplied with power by the backlight power supply line 218.
As described above, the eDP interface 21 includes the backlight on line 216, the luminance adjustment line 217, and the backlight power supply line 218, the backlight on line 216 is used to turn on the backlight 7, the luminance adjustment line 217 is used to adjust the luminance of the backlight 7, and the backlight power supply line 218 is used to supply power to the backlight 7. The backlight 7 can be turned on and off by the backlight on line 216, the luminance of the backlight 7 can be adjusted by the luminance adjustment line 217, and the backlight 7 can be supplied with power by the backlight power supply line 218.
It should be noted that, in the embodiments of the present utility model, all directional indicators (such as up, down, left, right, front, and back) are only used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), if the specific posture is changed, the directional indicators correspondingly change, and the connection may be a direct connection or an indirect connection.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.
Claims (8)
1. An electronic whiteboard system based on an eDP interface is characterized by comprising a main board and a display module, wherein the display module comprises a TCON circuit board; an eDP interface is arranged in the TCON circuit board and used for transmitting eDP data; the eDP interface comprises a main channel, wherein the main channel comprises two main channel data line pairs, and each main channel data line pair comprises two main channel data lines; the eDP interface includes an auxiliary channel including an auxiliary channel data line pair including two auxiliary channel data lines.
2. The eDP interface based electronic whiteboard system of claim 1, wherein the display module further comprises a display screen electrically connected to the TCON circuit board, the display screen configured to receive an image signal and display the image signal.
3. The eDP interface based electronic whiteboard system of claim 2, further comprising a power board electrically connected to the motherboard, the power board for supplying power to the motherboard.
4. The eDP interface based electronic whiteboard system of claim 3, wherein the display module further comprises a backlight driving circuit and a backlight, the backlight is electrically connected to the backlight driving circuit, the backlight driving circuit is electrically connected to the power panel, the backlight driving circuit is used for driving the backlight, and the backlight is used for providing a light source for the display screen.
5. The eDP interface based electronic whiteboard system of claim 1, further comprising a signal source connected to the motherboard, the signal source configured to send an image signal to the motherboard.
6. The eDP interface based electronic whiteboard system of claim 1, wherein the eDP interface includes a display supply line for transmitting a display supply voltage.
7. The eDP interface based electronic whiteboard system of claim 2, wherein the eDP interface includes a hot plug detect line for detecting a connection state of the display screen.
8. The eDP interface based electronic whiteboard system of claim 4, wherein the eDP interface includes a backlight on line for turning on the backlight, a brightness adjustment line for adjusting brightness of the backlight, and a backlight power supply line for supplying power to the backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223427289.4U CN219105470U (en) | 2022-12-20 | 2022-12-20 | Electronic whiteboard system based on eDP interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223427289.4U CN219105470U (en) | 2022-12-20 | 2022-12-20 | Electronic whiteboard system based on eDP interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219105470U true CN219105470U (en) | 2023-05-30 |
Family
ID=86454678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223427289.4U Active CN219105470U (en) | 2022-12-20 | 2022-12-20 | Electronic whiteboard system based on eDP interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219105470U (en) |
-
2022
- 2022-12-20 CN CN202223427289.4U patent/CN219105470U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107342063B (en) | Common voltage driving circuit and display device | |
| US8248340B2 (en) | Liquid crystal display capable of split-screen displaying and computer system using same | |
| US20140253537A1 (en) | Display drive integrated circuit and image display system | |
| CN105161043B (en) | Display device, the display system with multiple display devices and the method for controlling display system | |
| US7123248B1 (en) | Analog multi-display using digital visual interface | |
| US20100073384A1 (en) | Liquid crystal display and display system comprising the same | |
| KR101492116B1 (en) | A connector and display device havine the same | |
| CN101452685A (en) | Liquid crystal display and display system comprising same | |
| CN102651193B (en) | LED (Light Emitting Diode) display driver and display device | |
| US11721302B2 (en) | Display device capable of switching display mode and method thereof | |
| CN219105470U (en) | Electronic whiteboard system based on eDP interface | |
| US20080068323A1 (en) | Integrated display panel | |
| CN211181609U (en) | Intelligent terminal dual-mode L CD drive board circuit | |
| CN113903287B (en) | Display driving board | |
| JP2010101976A (en) | Adapter for connecting display and display connection system | |
| KR20170120746A (en) | Display apparatus | |
| EP1564708A2 (en) | TFT-LCD driving system and method thereof | |
| CN103295544B (en) | Liquid crystal display | |
| CN106354463B (en) | Computer display based on electronic ink display screen | |
| CN202025518U (en) | Liquid crystal screen backlight control circuit and computer | |
| KR102466286B1 (en) | Touch Device And Method Of Driving The Same | |
| CN213303615U (en) | Integrated liquid crystal display driving equipment | |
| CN216486418U (en) | DP-AUX controller | |
| EP2006832A2 (en) | Timing controller, liquid crystal display including timing controller, and method of driving liquid crystal display | |
| CN216957394U (en) | Table tablet double-screen different display system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |