CN214253829U - Observation type TFT screen control circuit - Google Patents
Observation type TFT screen control circuit Download PDFInfo
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- CN214253829U CN214253829U CN202122027388.2U CN202122027388U CN214253829U CN 214253829 U CN214253829 U CN 214253829U CN 202122027388 U CN202122027388 U CN 202122027388U CN 214253829 U CN214253829 U CN 214253829U
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Abstract
The utility model discloses an observation type TFT screen control circuit, which comprises a main drive board interface, a TFT screen drive circuit and an observation type TFT control circuit; the main drive board interface is connected with the TFT screen drive circuit through the observation type TFT control circuit; the observation type TFT control circuit comprises a mainboard interface circuit, a bridge chip, a booster circuit, a serial memory and a peripheral auxiliary circuit. The utility model discloses under not changing OLED drive mainboard hardware situation, connect the TFT screen also can normally work, realized the intercommunication between TFT screen control circuit and the OLED host computer for the mainboard of OLED screen can be applicable to TFT screen production, has improved suitability, the application scope of TFT screen production, and relative control cost is lower, and production technology is simpler, has improved production efficiency.
Description
Technical Field
The utility model relates to a TFT screen circuit technical field especially relates to an observation formula TFT screen control circuit.
Background
The OLED display screen and the TFT display screen are mainly applied to the mobile phone screen market, but the OLED display screen is more expensive than the TFT display screen due to different manufacturing processes. The method can be applied to the field of mobile phone screen changing. Compared with the conventional LCD, the OLED (organic light-Emitting Diode) is an array of light-Emitting diodes, which can emit light by itself without backlight. The TFT, as an LCD panel, does not emit light itself, and requires a backlight LED as a light source to emit light.
Because intercommunication can not be carried out between the mainboard power supply of OLED screen and the TFT screen power supply, the mainboard of traditional OLED screen can not the lug connection TFT screen carry out using, at the production of TFT screen and the in-process of using, need to support the power supply mainboard to its solitary design for the suitability of TFT screen is lower, is difficult to the mainboard of intercommunication to use, and the cost is higher scheduling problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides an observation formula TFT screen control circuit, this observation formula TFT screen control circuit of aim at can provide the mode that the OLED mainboard is suitable for the TFT screen, has realized the intercommunication between TFT screen control circuit and the OLED host computer for the mainboard of OLED screen can be applicable to TFT screen production, has improved the suitability, the application scope of TFT screen production, and relative control cost is lower, and production technology is simpler, has improved production efficiency.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
an observation type TFT screen control circuit comprises a main drive board interface, a TFT screen drive circuit and an observation type TFT control circuit; the main drive board interface is connected with the TFT screen drive circuit through the observation type TFT control circuit;
the observation type TFT screen control circuit comprises a mainboard interface circuit, a bridge chip, a booster circuit, a serial memory and a peripheral auxiliary circuit; the host board interface circuit is electrically connected with the TFT screen driving circuit through the bridge chip, the host board interface circuit is also provided with a VCI power supply, the output end of the VCI power supply is electrically connected with the booster circuit, the output end of the booster circuit is electrically connected with the TFT screen driving circuit, and the serial memory is electrically connected with the TFT screen driving circuit.
Preferably, in the observation type TFT screen control circuit, an MIPI bus is disposed on the motherboard interface circuit, and an output terminal of the MIPI bus is electrically connected to the TFT screen driving circuit;
the mainboard interface circuit is connected with the input end of the MIPI bus of the bridge chip.
Preferably, in the above observation type TFT screen control circuit, the motherboard interface circuit is further connected to the bridge chip through an I2C bus or an SPI bus and an INT signal line;
the bridge chip circuit is also connected to the TFT screen driver circuit through an I2C bus or an SPI bus and an INT signal line.
Preferably, in the above observation type TFT panel control circuit, the TFT panel driving circuit is a HX83100 chip.
Preferably, in the above observation type TFT screen control circuit, the bridge chip is formed by a CX7701/7702 chip and its peripheral circuits.
Preferably, in the above observation type TFT screen control circuit, the voltage boost circuit is composed of an ANX6585D chip and its peripheral circuits.
Preferably, in the above observation type TFT screen control circuit, the serial memory is composed of a P25Q21L chip and its peripheral circuits.
Preferably, in the above observation type TFT panel control circuit, the TFT panel driving circuit is formed by an LX063A1BA04 chip and its peripheral circuits.
The utility model has the advantages that: the utility model discloses an observation formula TFT screen control circuit can provide the mode that the OLED mainboard is suitable for the TFT screen, and can drive the TFT screen through the drive mainboard of the former OLED screen of this control circuit. Under the condition that the hardware of the OLED driving main board is not changed, the TFT screen can also normally work, the intercommunication between the TFT screen control circuit and the OLED host is realized, the OLED screen main board can be suitable for the TFT screen production, the applicability and the application range of the TFT screen production are improved, the relative control cost is lower, the production process is simpler, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a system module architecture framework of the present invention;
fig. 2 is a block diagram of the circuit structure of the present invention;
fig. 3 is a circuit diagram of the interface circuit of the motherboard according to the present invention;
fig. 4 is a circuit diagram of the bridge chip of the present invention;
fig. 5 is a circuit diagram of the boost circuit of the present invention;
fig. 6 is a circuit diagram of the serial memory according to the present invention.
Reference numbers in the figures: 1. a main drive plate interface; 2. an observation type TFT control circuit; 10. a motherboard interface circuit; 20. bridging the chips; 30. a boost circuit; 40. a serial memory; 50. and a TFT screen driving circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present embodiment is an observation TFT screen control circuit, which includes a main drive board interface 1, a main drive board interface 1 applicable to a main board of a mainstream smart phone, a TFT screen drive circuit 50, and an observation TFT control circuit 2; the main driving board interface 1 is connected with the TFT screen driving circuit 50 through the observation type TFT control circuit 2, wherein the TFT screen driving circuit 50 can be set as HX83100, LX063A1BA04 or NT36672 chips, the driving chip in the TFT screen driving circuit 50 is not limited in model number, the application range of the TFT screen driving circuit 50 is wide, and the TFT screen driving circuit 50 is convenient for supplying and selecting the chips; the main drive board interface 1 can stably supply power to the observation type TFT control circuit 2 through the boosting and conversion of the observation type TFT control circuit 2, and is suitable for application of a TFT screen.
Referring to fig. 2, the observation TFT control circuit 2 includes a motherboard interface circuit 10, a bridge chip 20, a boost circuit 30, a serial memory 40, and a peripheral auxiliary circuit; the motherboard interface circuit 10 is electrically connected to the TFT screen driving circuit 50 through the bridge chip 20, the motherboard interface circuit 10 is further provided with a VCI power supply, an output terminal of the VCI power supply is electrically connected to the boost circuit 30, an output terminal of the boost circuit 30 is electrically connected to the TFT screen driving circuit 50, and the serial memory 40 is electrically connected to the TFT screen driving circuit 50. Through the setting of observation formula TFT control circuit 2 for whole circuit frame structure sets up rationally, and the function is abundant, connects stably.
Specifically, the host board interface circuit 10 is provided with a MIPI bus, an output end of the MIPI bus is electrically connected with the TFT screen driving circuit 50, the TFT screen driving circuit 50 can be set as one of HX83100, LX063A1BA04 or NT36672, a driving chip in the TFT screen driving circuit 50 does not limit the type, and the applicability to the TFT screen driving circuit 50 is improved; the host board interface circuit 10 is connected with the input end of the MIPI bus of the bridge connection chip 20, the overall structure among the host board interface circuit 10, the bridge connection chip 20 and the TFT drive circuit 50 is reasonable, and the module of the MIPI interface has the advantages of high speed, large transmission data volume, low power consumption and good interference resistance compared with a parallel port, and can improve the stability of signal transmission in use.
Further, the motherboard interface circuit 10 is also connected to the bridge chip 20 via I2C or SPI bus and INT signal; the bridge chip circuit 20 is also connected to the TFT panel driving circuit 50 and the I2C serial bus through the I2C or SPI bus and the INT signal, but the connection method is not limited to the connection method of the I2C or SPI bus, and may be other. The I2C bus is a high performance serial bus that includes bus arbitration and high and low speed device synchronization functions required by multi-master systems.
Based on the above, as shown in fig. 3, for the motherboard interface circuit 10, the motherboard interface circuit 10 may be connected to the boost circuit 30 through the power supply VCI, and the motherboard interface circuit 10 may be connected to the bridge chip 20 or the TFT driver circuit 50 through the MIPI bus, or connected to the bridge chip 20 through the I2C or the SPI bus, and the INT signal, and the connection manner between the TFT panel driver circuit 50 and the bridge chip 20 is not limited to the connection manner of the I2C or the SPI bus, but may be other connection manners.
As shown in fig. 4, the bridge chip 20 is composed of a CX7701/7702 chip and its peripheral circuits, and the bridge chip 20 is mainly used for connection between the motherboard interface circuit 10 and the TFT driver circuit 50.
As shown in fig. 5, the voltage boost circuit 30 is composed of an ANX6585D chip and its peripheral circuits, and the voltage boost circuit 30 provides voltage to the TFT driver circuit 50, and in turn boosts the power supplied from the motherboard interface circuit 10 to the TFT driver circuit 50 through the voltage boost circuit 30.
As shown in fig. 6, the serial memory 40 is composed of a P25Q21L chip and its peripheral circuits, the serial memory 40 is connected to the TFT panel driving circuit 50 through an SP serial interface, and the serial memory 40 can provide code and parameter storage space for the driving IC.
In summary, the problem of brightness adjustment of the TFT is converted into backlight adjustment of the OLED, and the voltage of the peripheral circuit is controlled to control the input voltage of the motherboard interface circuit 10, so as to adjust the brightness of the TFT; the main functional effect is that the main board of the OLED screen can be suitable for TFT screen production, the relative control cost is lower, the production process is simpler, and the production efficiency is improved.
When in use, the OLED motherboard is set as the motherboard interface circuit 10 in the embodiment, and the motherboard interface circuit 10 can stably supply power to the observation TFT control circuit 2 through the boosting and conversion of the observation TFT control circuit 2, so as to provide a mode that the OLED motherboard is suitable for the TFT screen, and the driving motherboard of the original OLED screen can drive the TFT screen through the control circuit. Under the condition that the hardware of the OLED driving main board is not changed, the TFT screen can also normally work, the intercommunication between the TFT screen and the OLED host is realized, the main board of the OLED screen can be suitable for the production of the TFT screen, the applicability and the application range of the production of the TFT screen are improved, the relative control cost is lower, the production process is simpler, and the production efficiency is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. An observation type TFT screen control circuit is characterized in that: the device comprises a main drive board interface (1), a TFT screen drive circuit (50) and an observation type TFT control circuit (2); the main drive board interface (1) is connected with a TFT screen drive circuit (50) through an observation type TFT control circuit (2);
the observation type TFT control circuit (2) comprises a mainboard interface circuit (10), a bridge chip (20), a booster circuit (30) and a serial memory (40);
the main board interface circuit (10) is electrically connected with the TFT screen driving circuit (50) through the bridge connection chip (20), the main board interface circuit (10) is further provided with a VCI power supply, the output end of the VCI power supply is electrically connected to the booster circuit (30), the output end of the booster circuit (30) is electrically connected with the TFT screen driving circuit (50), and the serial memory (40) is electrically connected with the TFT screen driving circuit (50).
2. An observation type TFT screen control circuit according to claim 1, characterized in that: the main board interface circuit (10) is provided with an MIPI bus, and the output end of the MIPI bus is electrically connected with the TFT screen driving circuit (50);
the motherboard interface circuit (10) is connected to the input of the MIPI bus of the bridge chip (20).
3. An observed TFT screen control circuit according to claim 1 or 2, wherein: the mainboard interface circuit (10) is also connected to the bridge code sheet (20) through an I2C bus or an SPI bus and an INTO signal line;
the bridge chip (20) is also connected to the TFT panel driver circuit (50) via an I2C bus or SPI bus and an INTI signal line.
4. An observation type TFT screen control circuit according to claim 1, characterized in that: the TFT panel driving circuit (50) includes one of chips not limited to HX83100, LX063A1BA04, or NT 36672.
5. An observed TFT screen control circuit according to claim 1 or 2, wherein: the bridge chip (20) is composed of a CX7701/7702 chip and peripheral circuits thereof.
6. An observation type TFT screen control circuit according to claim 1, characterized in that: the boosting circuit (30) is composed of an ANX6585D chip and peripheral circuits thereof.
7. An observation type TFT screen control circuit according to claim 1, characterized in that: the serial memory (40) is composed of a P25Q21L chip and its peripheral circuits.
8. An observed TFT screen control circuit according to claim 1 or 2, wherein: the TFT panel driving circuit (50) comprises a chip and peripheral circuits thereof, wherein the chip is not limited to HX83100, LX063A1BA04 or NT 36672.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122027388.2U CN214253829U (en) | 2021-08-26 | 2021-08-26 | Observation type TFT screen control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122027388.2U CN214253829U (en) | 2021-08-26 | 2021-08-26 | Observation type TFT screen control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214253829U true CN214253829U (en) | 2021-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122027388.2U Active CN214253829U (en) | 2021-08-26 | 2021-08-26 | Observation type TFT screen control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214253829U (en) |
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2021
- 2021-08-26 CN CN202122027388.2U patent/CN214253829U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Control Circuit of Observation TFT Screen Effective date of registration: 20221013 Granted publication date: 20210921 Pledgee: Bank of Jiangsu Co.,Ltd. Nanjing Jiangbei new area sub branch Pledgor: Nanjing Chuxin integrated circuit Co.,Ltd. Registration number: Y2022980018155 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230817 Granted publication date: 20210921 Pledgee: Bank of Jiangsu Co.,Ltd. Nanjing Jiangbei new area sub branch Pledgor: Nanjing Chuxin integrated circuit Co.,Ltd. Registration number: Y2022980018155 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 530201 Unit 01-09, 38th Floor, Guangxi Hejing International Financial Plaza, No. 18 Kaixuan Road, Nanning Area, China (Guangxi) Pilot Free Trade Zone, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: Nanning Chuxin Integrated Circuit Design Co.,Ltd. Country or region after: China Address before: Room 1023, Yingying building, 99 Tuanjie Road, yanchuangyuan, Jiangbei new district, Nanjing, Jiangsu 210043 Patentee before: Nanjing Chuxin integrated circuit Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |