Integrated incell TFT (Thin Film Transistor) assembly

Abstract

The utility model discloses an integrated type incell TFT (Thin Film Transistor) assembly, which comprises a main control IC (Integrated Circuit), a display touch control driving IC and an INCELL TFT main body, the main control IC is coupled with the display touch control driving IC, the display touch control driving IC is coupled with the INCELL TFT main body, a preset first FLASH unit is arranged in the display touch control driving IC, and TP firmware is stored in the FLASH unit. When the first FLASH unit is powered on, a TP firmware program in the first FLASH unit is transmitted to the display touch drive IC, and the touch function is enabled. And the master control IC1 carries out information feedback of touch control through two pins of the TPI2CSCL and the TPI2CSDA. According to the integrated incell TFT assembly, a Flash IC of a peripheral circuit is omitted, so that the structure of a product can be optimized, the function of a current master control IC can be better played, technical excess is avoided, the cost is reduced, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to a TFT component, more precisely, an integrated incell TFT component. Background Art

[0002] Due to the good display effect, low price, high cost performance and other characteristics of TFT, it is widely used in smart watches. With the continuous update of TFT technology, Incell TFT integrates the display function and TP touch integration, and Incell TFT is more and more popular in the smart watch market. As a TFT project of consumer products, the cost needs to be continuously optimized to meet the needs of the consumer market.

[0003] Such as Figure 1 As shown, the existing Incell TFT is provided with a TFT screen A and an FPC board C, and a FLASH chip B is provided on the FPC board C. The FLASH chip B is used to store TP firmware, which not only occupies space but also affects the cost.

[0004] The Chinese utility model patent document CN216526606U discloses an ESD protection structure on the surface of incell TFT, including incell TFT. A frame-shaped low-resistance conductive protection layer is arranged on the upper surface of the upper substrate of the incell TFT, and the frame-shaped low-resistance conductive protection layer is located outside the display area of the incell TFT. A high-resistance conductive optical adhesive layer is arranged on the lower surface of the upper polarizer of the incell TFT. The high-resistance conductive optical adhesive layer is a voltage-conductive pressure-sensitive adhesive layer. The frame-shaped low-resistance conductive protection layer is electrically connected to the voltage-conductive pressure-sensitive adhesive layer, and the projection of the voltage-conductive pressure-sensitive adhesive layer covers all or part of the frame area of the frame-shaped low-resistance conductive protection layer. The frame-shaped low-resistance conductive protection layer is connected to a ground binding pin arranged on the lower substrate of the incell TFT through conductive silver paste. The frame-shaped low-resistance conductive protection layer is an ITO layer and is formed by sputtering and etching. The frame-shaped low-resistance conductive protection layer is a conductive metal layer and is formed by sputtering and etching or coating. The ESD protection structure on the surface of incell TFT further includes an FPC, the FPC is bound on the lower substrate of the incell TFT, and the ground binding pin on the lower substrate is connected to the ground wire of the main board through the FPC.

[0005] Obviously, this patent can quickly conduct static electricity into the ground wire by setting a frame-shaped low-resistance conductive ESD protection layer on the upper substrate of incell TFT, and cooperate with the high-resistance conductive optical adhesive layer on the polarizer to achieve static electricity protection for incell TFT, which can not only protect the viewing area from ESD damage, but also protect incell TFT from ESD impact, and the ESD protection effect is good. However, this structure cannot solve the cost problem of the existing Incell TFT.

[0006] Chinese invention patent document CN108924280A discloses 1. A touch display module for a mobile phone, comprising a display touch panel and an FPC circuit board. The display touch panel includes an incell / ONCELL TFT liquid crystal display screen, a transparent conductive sheet, and an OCA optical adhesive layer. The transparent conductive sheet is pasted to the end of the incell / ONCELL TFT liquid crystal display screen through conductive silver paste. The OCA optical adhesive layer is disposed around the incell / ONCELL TFT liquid crystal display screen. The FPC circuit board includes an FPC body. One side of the FPC body extends outward to form a first extension portion. A connection portion is provided on the FPC body. The FPC body extends outward on the same side of the connection portion to form a second extension portion. A gold finger is provided at the end of the first extension portion. The gold finger is electrically connected to the transparent conductive sheet through conductive silver paste. A touch drive chip is electrically connected to the middle of the second extension portion. A connection terminal is provided at the end of the connection portion. The FPC body uses a polyimide copper clad laminate as the base layer. Cover layers are provided on the upper and lower surfaces of the base layers of the FPC body, the connection portion, and the first extension portion. A grid-shaped copper foil layer is covered on the non-wiring areas of the upper and lower surfaces of the base layer of the second extension portion. The base layers of the FPC body, the connection portion, the first extension portion, and the second extension portion are integrally formed by a copper clad laminate. A positioning hole is provided on the FPC body near the first extension portion. The copper foil layer is made of rolled copper foil material, and the crystal orientation of the copper foil layer is parallel to the circuit direction. Smooth transitions are adopted on both sides of the joints between the FPC body and the first extension portion and between the FPC body and the second extension portion. The touch drive chip uses an LPC178X microcontroller. The shape of the second extension portion is rectangular, and the shape of the connection portion is L-shaped. The length of the connection portion is greater than the length of the FPC body. The transparent conductive sheet is made of graphene material. Obviously, this patent eliminates the auxiliary FPC for installing the touch drive chip, saves materials and costs while improving the installation efficiency, and is also conducive to the circuit layout of the touch screen display product. The setting of the positioning hole on the FPC main body further enhances the connection strength of the FPC circuit board. The layer structure design of the second extension portion can effectively ensure the bending flexibility and also avoid the defect of white spots on the display screen. However, this structure cannot solve the cost problem of the existing Incell TFT. Summary of the Utility Model

[0007] Based on this, it is necessary to provide an integrated in-cell TFT component for the above-mentioned technical problems. The integrated in-cell TFT component includes a main control IC, a display touch drive IC, and an INCELL TFT main body. The main control IC is coupled to the display touch drive IC, and the display touch drive IC is coupled to the INCELL TFT main body. A pre-set first FLASH unit is provided in the display touch drive IC, and TP firmware is stored in the FLASH unit. When powered on, the TP firmware program in the first FLASH unit is transmitted to the display touch drive IC to activate the touch function. The main control IC1 feeds back touch information through two pins, TP_I2C_SCL and TP_I2C_SDA. By eliminating the Flash IC of the peripheral circuit, this integrated in-cell TFT component can not only optimize the product structure but also better utilize the functions of the current main control IC, avoid technological overkill, reduce costs, and enhance product competitiveness.

[0008] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0009] An integrated in-cell TFT component, characterized in that the integrated in-cell TFT component includes a main control IC, a display touch drive IC, and an INCELL TFT main body. The main control IC is coupled to the display touch drive IC, and the display touch drive IC is coupled to the INCELL TFT main body. A pre-set first FLASH unit is provided in the display touch drive IC, and TP firmware is stored in the first FLASH unit.

[0010] As a preferred embodiment of the integrated in-cell TFT component provided by the present utility model, the display touch drive IC is an IIC-type device.

[0011] As a preferred embodiment of the integrated in-cell TFT component provided by the present utility model, the first FLASH unit is a hybrid FLASH.

[0012] As a preferred embodiment of the integrated in-cell TFT component provided by the present utility model, the main control IC is coupled to the display touch drive IC through the TP_I2C_SCL pin and the TP_I2C_SDA pin.

[0013] As a preferred embodiment of the integrated in-cell TFT component provided by the present utility model, the first FLASH unit is 256K.

[0014] An integrated in-cell TFT component, characterized in that the integrated in-cell TFT component includes a main control IC, a display touch drive IC, and an INCELL TFT body. The main control IC is coupled to the display touch drive IC, and the display touch drive IC is coupled to the INCELL TFT body. A pre-set second FLASH unit is provided in the main control IC, and TP firmware is stored in the second FLASH unit.

[0015] As a preferred implementation manner of the integrated in-cell TFT component provided by the present invention, the display touch drive IC is an IIC type device.

[0016] As a preferred implementation manner of the integrated in-cell TFT component provided by the present invention, the second FLASH unit is a hybrid FLASH.

[0017] As a preferred implementation manner of the integrated in-cell TFT component provided by the present invention, the main control IC is coupled to the display touch drive IC through TP_I2C_SCL pin, TP_I2C_SDA pin, TP_SPI_SCL pin, TP_SPI_MOSI pin, TP_SPI_MISO pin, and TP_SPI_CS pin.

[0018] As a preferred implementation manner of the integrated in-cell TFT component provided by the present invention, the second FLASH unit is 256K.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides an integrated in-cell TFT component. When powered on, the TP firmware program in the first FLASH unit is transmitted to the display touch drive IC to activate the touch function. The main control IC1 feeds back touch information through two pins, TP_I2C_SCL and TP_I2C_SDA. By eliminating the Flash IC of the peripheral circuit, the integrated in-cell TFT component can not only optimize the product structure, but also better exert the functions of the current main control IC, avoid technological overkill, reduce costs, and improve product competitiveness.

[0021] In addition, a pre-set second FLASH unit can be provided in the main control IC1, and the TP firmware is stored in the second FLASH unit. When powered on, the TP firmware program in the second FLASH unit is transmitted to the display touch driving IC to activate the touch function. The main control IC can load the TP firmware program into the display touch driving IC through the TP_SPI_SCL pin, TP_SPI_MOSI pin, TP_SPI_MISO pin, and TP_SPI_CS pin to activate the touch function of the display touch driving IC.

[0022] In addition, the first FLASH unit and the second FLASH unit can be made into a hybrid FLASH. The hybrid FLASH combines the storage devices of NOR Flash and NAND Flash, and it has the advantages of both. It finds a balance between the read speed and the write speed, and is particularly suitable for use on integrated in-cell TFTs. Description of the Drawings

[0023] In order to more clearly illustrate the solutions in the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of an existing in-cell TFT component;

[0025] Figure 2 It is a schematic connection structure diagram of the integrated in-cell TFT component of the present invention;

[0026] Figure 3 It is a schematic connection structure diagram of another embodiment of the integrated in-cell TFT component of the present invention;

[0027] The markings in the drawings are explained as follows: 1. Main control IC; 11. Second FLASH unit; 2. Display touch driving IC; 21. First FLASH unit; 3. INCELL TFT main body. Detailed Embodiments

[0028] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] As described in the background art, for the TFT screen in the prior art, due to the characteristics of good TFT display effect, low price, high cost performance, etc., it is widely used in smart watches. With the continuous update of TFT technology, Incell TFT integrates the display function and TP touch integration, and Incell TFT is more and more popular in the smart watch market. As a TFT project of consumer products, the cost needs to be continuously optimized to meet the needs of the consumer market.

[0030] To solve this technical problem, the present utility model provides an integrated Incell TFT component, which includes a main control IC1, a display touch drive IC2, and an INCELL TFT main body 3. The main control IC1 is coupled to the display touch drive IC2, and the display touch drive IC2 is coupled to the INCELL TFT main body 3. A pre-set first FLASH unit 21 is provided in the display touch drive IC2, and TP firmware is stored in the first FLASH unit 21.

[0031] Through the above structural design, when powered on, the TP firmware program in the first FLASH unit 21 is transmitted to the display touch drive IC2 to start the touch function. The main control IC1 feeds back touch information through two pins of TP_I2C_SCL and TP_I2C_SDA. By omitting the Flash IC of the peripheral circuit, the integrated Incell TFT component can not only optimize the product structure, but also enable the current main control IC function to be better exerted, avoid technical overcapacity, reduce costs, and provide product competitiveness.

[0032] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be elaborated in detail below in conjunction with the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0034] It should be noted that similar reference numerals and letters refer to similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] Embodiment 1

[0036] As Figure 2 shown, the integrated in-cell TFT component includes a main control IC1, a display touch drive IC2, and an in-cell TFT body 3. The main control IC1 is coupled to the display touch drive IC2, and the display touch drive IC2 is coupled to the in-cell TFT body 3. A pre-set first FLASH unit 21 is provided in the display touch drive IC2, and TP firmware is stored in the first FLASH unit 21.

[0037] It should be noted that the display touch drive IC2 is an IIC type device.

[0038] It should be noted that the main control IC1 is coupled to the display touch drive IC2 through TP_I2C_SCL pin and TP_I2C_SDA pin.

[0039] The first FLASH unit 21 is 256K.

[0040] The working mode of this embodiment will be described below.

[0041] When powered on, the TP firmware program in the first FLASH unit 21 is transmitted to the display touch drive IC2 to start the touch function. The main control IC1 feeds back touch information through two pins, TP_I2C_SCL and TP_I2C_SDA. By eliminating the Flash IC of the peripheral circuit, the integrated in-cell TFT component can not only optimize the product structure, but also better exert the functions of the current main control IC, avoid technological overkill, reduce costs, and improve product competitiveness.

[0042] Embodiment 2

[0043] As Figure 3 shown, the integrated in-cell TFT component provided in Embodiment 1 is further optimized. Specifically, the integrated in-cell TFT component includes a main control IC1, a display touch drive IC2, and an in-cell TFT body 3. The main control IC1 is coupled to the display touch drive IC2, and the display touch drive IC2 is coupled to the in-cell TFT body 3. A pre-set second FLASH unit 11 is provided in the main control IC1, and TP firmware is stored in the second FLASH unit 11.

[0044] It should be noted that the display touch drive IC2 is an IIC type device.

[0045] It should be noted that the main control IC1 is coupled to the display touch drive IC2 through the TP_I2C_SCL pin, TP_I2C_SDA pin, TP_SPI_SCL pin, TP_SPI_MOSI pin, TP_SPI_MISO pin and TP_SPI_CS pin.

[0046] The second FLASH unit 11 is 256K.

[0047] The working mode of this embodiment will be described below.

[0048] When powered on, the TP firmware program in the second FLASH unit 11 is transmitted to the display touch drive IC2 to activate the touch function. The main control IC can load the TP firmware program into the display touch drive IC2 through the TP_SPI_SCL pin, TP_SPI_MOSI pin, TP_SPI_MISO pin and TP_SPI_CS pin to activate the touch function of the display touch drive IC2.

[0049] Through this solution, the Flash IC of the peripheral circuit can be omitted, which not only optimizes the product structure, but also enables the better performance of the current main control IC function without technological redundancy. Thus, the price is optimized and the product competitiveness is provided.

[0050] Embodiment 3

[0051] The integrated in-cell TFT component provided in Embodiment 1 or 2 is further optimized. Specifically, the first FLASH unit 21 and the second FLASH unit 11 are hybrid FLASHes. The hybrid FLASH combines the storage devices of NOR Flash and NAND Flash. It has the advantages of both and finds a balance between the read speed and the write speed, which is particularly suitable for use on the integrated in-cell TFT.

[0052] The terms "coupled" and "coupled to" involved in the embodiments of the present application should be understood in a broad sense. For example, it can refer to a direct physical connection, or an indirect connection realized through electronic devices, such as a connection realized through resistors, inductors, capacitors or other electronic devices.

[0053] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0054] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of them. The accompanying drawings show the preferred embodiments of the present application, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present application in other related technical fields are equally within the scope of the patent protection of the present application.

Claims

1. An integrated incell TFT component, characterized in that: The integrated incell TFT component comprises a main control IC (1), a display touch control driver IC (2) and an INCELL TFT body (3); the main control IC (1) is coupled to the display touch control driver IC (2); the display touch control driver IC (2) is coupled to the INCELL TFT body (3); a pre-set first FLASH unit (21) is provided in the display touch control driver IC (2); and TP firmware is stored in the first FLASH unit (21).

2. The integrated incell TFT assembly according to claim 1, characterized in that: The display touch control driver IC (2) is an IIC type device.

3. The integrated incell TFT assembly according to claim 1, characterized in that: The first FLASH unit (21) is a hybrid FLASH.

4. The integrated incell TFT assembly according to claim 2, characterized in that: The master control IC (1) is coupled to the display touch control driver IC (2) via a TP_I2C_SCL pin and a TP_I2C_SDA pin.

5. The integrated incell TFT assembly according to claim 1, characterized in that: The first FLASH unit (21) is 256K.

6. An integrated incell TFT component, characterized in that: The integrated incell TFT component comprises a main control IC (1), a display touch control driver IC (2) and an INCELL TFT body (3); the main control IC (1) is coupled to the display touch control driver IC (2), the display touch control driver IC (2) is coupled to the INCELL TFT body (3), and a pre-set second FLASH unit (11) is provided in the main control IC (1), and the second FLASH unit (11) stores TP firmware.

7. The integrated incell TFT assembly according to claim 6, characterized in that: The display touch control driver IC (2) is an IIC type device.

8. The integrated incell TFT assembly according to claim 6, characterized in that: The second FLASH unit (11) is a hybrid FLASH.

9. The integrated incell TFT assembly according to claim 6, characterized in that: The master control IC (1) is coupled to the display touch control driver IC (2) via a TP_I2C_SCL pin, a TP_I2C_SDA pin, a TP_SPI_SCL pin, a TP_SPI_MOSI pin, a TP_SPI_MISO pin and a TP_SPI_CS pin.

10. The integrated incell TFT assembly according to claim 6, characterized in that: The second FLASH unit (11) is 256K.

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