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CN-224232340-U - TFT driving chip, display system and mobile phone terminal

CN224232340UCN 224232340 UCN224232340 UCN 224232340UCN-224232340-U

Abstract

The utility model provides a TFT driving chip, a display system and a mobile phone terminal, which are applied to the technical field of liquid crystal display. According to the utility model, the TFT driving chip can realize that the OLED screen is replaced by the TFT screen under the condition that the display panel is unchanged, so that the normal display of the display panel can be ensured, and the maintenance or replacement cost of the OLED screen can be reduced.

Inventors

  • WAN BO
  • LIU JIAWEI
  • SU ZHONGLIANG
  • WANG JIANHUI

Assignees

  • 南宁初芯集成电路设计有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (10)

  1. 1. A TFT driver chip, comprising: the MIPI analysis module is used for filtering out the driving signal of the OLED screen and writing the driving signal into the cache so as to perform parameter conversion and obtain the driving signal of the TFT screen; The image processing module is connected with the MIPI analysis module and is used for correcting and adaptively adjusting the driving signals of the TFT screen so as to perform color optimization and brightness compensation on the driving signals of the TFT screen; And the backlight control module is connected with the MIPI analysis module and is used for comparing the driving signal of the TFT screen with data stored in advance in the lookup table and controlling the brightness according to the comparison result output.
  2. 2. The TFT driver chip of claim 1, wherein the drive signals for the TFT screen include PWM control signals.
  3. 3. A display system is characterized by comprising an OLED control panel and a display panel, wherein, The OLED control board is positioned on the mobile phone main board and is used for sending a driving signal of the OLED screen to the display panel; The display panel comprises a TFT screen and a TFT driving chip, and is used for converting the received driving signals of the OLED screen into driving signals of the TFT screen, and driving the TFT screen to execute display operation corresponding to the driving signals of the OLED screen.
  4. 4. The display system of claim 3, wherein the TFT driver chip comprises: The MIPI analysis module is used for filtering out the driving signal of the OLED screen and writing the driving signal into a cache so as to perform parameter conversion and obtain the driving signal of the TFT screen; The image processing module is connected with the MIPI analysis module and is used for correcting and adaptively adjusting the driving signals of the TFT screen so as to perform color optimization and brightness compensation on the driving signals of the TFT screen; And the backlight control module is connected with the MIPI analysis module and is used for comparing the driving signal of the TFT screen with data stored in advance in the lookup table and controlling the brightness according to the comparison result output.
  5. 5. A display system as claimed in claim 3, wherein the drive signal for the TFT screen comprises a PWM control signal.
  6. 6. The display system of claim 4, wherein the TFT driver chip further comprises an interface processing module for performing interface type conversion according to interface types of the MIPI parsing module, the image processing module, and the backlight control module.
  7. 7. The display system of claim 6, wherein the interface type comprises a standard four-channel high-speed serial MIPI DSI interface, an LVDS interface, an SPI interface, or an I2C interface.
  8. 8. The display system of claim 3, wherein the TFT drive chip further comprises a voltage management module for providing different voltage outputs according to voltage specifications of each module in the TFT drive chip.
  9. 9. The display system of claim 4, wherein the MIPI parsing module instruction filters the drive signals for the OLED screen.
  10. 10. A mobile terminal comprising the display system of any one of claims 3 to 9.

Description

TFT driving chip, display system and mobile phone terminal Technical Field The utility model relates to the technical field of liquid crystal display, in particular to a TFT driving chip, a display system and a mobile phone terminal. Background An OLED (Organic Light-Emitting Diode), also called an Organic Light-Emitting Diode (OLED), is capable of self-luminescence, and does not require a backlight, but has a high manufacturing cost, and is generally used in a middle-high-end mobile phone. In the prior art, the original OLED system drives the original matched OLED screen, and the original OLED system drives the matched TFT screen to control the screen to work in a complex manner, and a backlight system is needed, so that the analysis and conversion of display instructions are solved, and therefore, the OLED screen has the advantages of self-luminescence, color saturation, wide viewing angle and the like, but the cost for maintaining or replacing the OLED screen in industry is high due to complex manufacturing process and expensive materials, and the development of the whole industry is not facilitated. Disclosure of utility model The utility model aims to provide a TFT driving chip, a display system and a mobile phone terminal, so as to reduce maintenance or replacement cost of an OLED screen. In order to solve the technical problems, the utility model provides a TFT driving chip, which comprises an MIPI analysis module, a first buffer memory and a second buffer memory, wherein the MIPI analysis module is used for filtering driving signals of an OLED screen and writing the driving signals into the buffer memory so as to perform parameter conversion and obtain the driving signals of the TFT screen; The image processing module is connected with the MIPI analysis module and is used for correcting and adaptively adjusting the driving signals of the TFT screen so as to perform color optimization and brightness compensation on the driving signals of the TFT screen; And the backlight control module is connected with the MIPI analysis module and is used for comparing the driving signal of the TFT screen with data stored in advance in the lookup table and controlling the brightness according to the comparison result output. In one example, the driving signal of the TFT screen may include a PWM control signal. The present utility model also provides, based on the same concept, a display system comprising an OLED control panel and a display panel, wherein, The OLED control board is positioned on the mobile phone main board and is used for sending a driving signal of the OLED screen to the display panel; The display panel comprises a TFT screen and a TFT driving chip, and is used for converting the received driving signals of the OLED screen into driving signals of the TFT screen, and driving the TFT screen to execute display operation corresponding to the driving signals of the OLED screen. In one example, the TFT driving chip may include: The MIPI analysis module is used for filtering out the driving signal of the OLED screen and writing the driving signal into a cache so as to perform parameter conversion and obtain the driving signal of the TFT screen; The image processing module is connected with the MIPI analysis module and is used for correcting and adaptively adjusting the driving signals of the TFT screen so as to perform color optimization and brightness compensation on the driving signals of the TFT screen; And the backlight control module is connected with the MIPI analysis module and is used for comparing the driving signal of the TFT screen with data stored in advance in the lookup table and controlling the brightness according to the comparison result output. In one example, the driving signal of the TFT screen may include a PWM control signal. In one example, the TFT driver chip may further include an interface processing module for performing interface type conversion according to interface types of the MIPI parsing module, the image processing module and the backlight control module. In one example, the interface type may include a standard four-channel high speed serial MIPIDSI interface, an LVDS interface, an SPI interface, or an I2C interface. In one example, the TFT driver chip may further include a voltage management module for providing different voltage outputs according to the voltage specifications of the modules in the TFT driver chip. In one example, the MIPI parsing module instruction filters the driving signals of the OLED screen. In a third aspect, based on the same concept, the present utility model also provides a mobile phone terminal, which may specifically include the display system as described above. Compared with the prior art, the utility model has at least the following technical effects: On the one hand, a novel TFT driving chip and a display system are provided, wherein the novel TFT driving chip comprises an MIPI analysis module, an image processing module and a backlight c