Plug-in Flash burning structure of TDDIIncell touch display module

Abstract

The utility model discloses an external Flash burning structure of a TDDIIncell touch display module. The external Flash burning structure of the TDDIIncell touch display module comprises a display module FPC (Flexible Printed Circuit), the top of the display module FPC is provided with a PET film, and the top of the PET film is provided with protective paper; a metal probe point is arranged at the bottom of the protective paper, a receding hole is formed in the PET film, a burning probe point for Flash IC burning is reserved on the display module FPC, a burning clamp is further included, and a metal probe is fixed to the bottom of the burning clamp. According to the design of the application, after the Flash IC SMT is arranged on the display module FPC, the FPC / a display panel bound with the FPC / a finished product display module after backlight organization can be subjected to flash firmware burning by using one set of burning clamp, so that the firmware burning is not only limited to an I2C interface any more, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of touch display module burning, in particular to a TDDI_Incell touch display module external Flash burning structure. Background Art

[0002] TDDI stands for touch and display driver integration. The touch and display functions of smartphones are independently controlled by two chips, and the biggest feature of TDDI is that it integrates the touch chip and the display chip into a single chip.

[0003] With the development of touch display technology, TDDI Incell touch display integrated module has become mainstream. Considering the process and cost of TDDI IC, there is usually no Touch flash in TDDI IC to store Touch SW firmware. This requires an external Flash IC to be mounted on the FPC of the display module. After the Flash IC is SMTed to the FPC of the display module, the burning of FW can only be done through Touch I2C. The transmission rate of I2C is very slow, with the fastest being only about 400K. The burning speed of FlashTouch FW will seriously affect the production capacity and efficiency of the product. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a TDDI_Incell touch display module external Flash burning structure, including a display module FPC; a PET film is arranged on the top of the display module FPC, and a protective paper is arranged on the top of the PET film; a metal detection point is arranged on the bottom of the protective paper, and an air-avoiding hole is opened on the PET film, and a burning detection point for Flash IC burning is reserved on the display module FPC.

[0006] As a further solution of the utility model: it also includes a burning fixture, a metal probe is fixed to the bottom of the burning fixture, and the bottom of the metal probe is designed to be an arc angle structure.

[0007] As a further solution of the utility model: the protective paper is black paper, and four grooves are opened at equal distances at the bottom of the protective paper, and a metal detection point is arranged in each groove.

[0008] As a further solution of the utility model: the PET film is a transparent film, and four air-avoiding holes are opened at equal distances on the end surface of the PET film, and the upper and lower parts of the air-avoiding holes are both open structures, and the positions of the air-avoiding holes correspond to the positions of the metal detection points.

[0009] As a further solution of the utility model: four burning detection points are arranged on the top of the display module FPC, and the four burning detection points correspond to the four air-avoiding holes and the four metal detection points respectively.

[0010] As a further solution of the utility model: the metal probe of the burning fixture is communicatively connected with the host computer through a wire.

[0011] As a further solution of the utility model: the top of each of the burning detection points is designed with leaking copper.

[0012] As a further solution of the utility model: the four metal detection points are far away from each other, the four air avoidance holes are far away from each other, and the four burning detection points are far away from each other.

[0013] As a further solution of the utility model: the lengths of the protective paper and the PET film are the same as the length of the display module FPC.

[0014] As a further solution of the utility model: the diameter of the air-avoiding hole is equal to or larger than the area of ​​the burning detection point.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] In this application, through the designed protective paper, PET film and display module FPC and other structures, after Flash ICSMT is attached to the display module FPC, the FPC / the display panel after binding the FPC / the finished display module after organizing the backlight can all be burned with a set of burning fixtures for flash firmware, so that firmware burning is no longer limited to the I2C interface, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the exploded structure of the protective paper, PET film and display module FPC of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model in which the burning fixture is pressed down after the protective paper, PET film and display module FPC are installed together.

[0019] The reference numerals and names in the figures are as follows:

[0020] 1. Protective paper; 2. PET film; 3. Display module FPC; 4. Burning fixture; 5. Metal probe; 6. Metal detection point; 7. Air hole; 8. Burning detection point. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 A TDDI_Incell touch display module external Flash burning structure includes a display module FPC3; a PET film 2 is arranged on the top of the display module FPC3, and a protective paper 1 is arranged on the top of the PET film 2; a metal detection point 6 is arranged on the bottom of the protective paper 1, and an air-avoiding hole 7 is opened on the PET film 2. A burning detection point 8 for Flash IC burning is reserved on the display module FPC3, and a leaking copper is designed on the top of each burning detection point 8.

[0023] See also Figure 2 In this embodiment, a burning fixture 4 is also included, and a metal probe 5 is fixed to the bottom of the burning fixture 4. The bottom of the metal probe 5 is designed to have an arc angle structure. The metal probe 5 of the burning fixture 4 is connected to the host computer through a wire.

[0024] Specifically, after the metal probe 5 of the Flash IC burning fixture 4 is pressed down, the Flash communicates with the upper computer of the burning fixture 4 to burn the TDDI Touch firmware, and the bottom of the metal probe 5 is designed to be an arc angle structure, which can stably contact the protective paper 1 when pressed down, reducing the possibility of causing damage to the protective paper 1.

[0025] See also Figure 1-2 In this embodiment, the protective paper 1 is black paper, and four grooves are equidistantly provided at the bottom of the protective paper 1, and a metal probe point 6 is provided in each groove.

[0026] Specifically, the black protective paper 1 and the four metal probe points 6 are independent conductive probe points. After the black protective paper 1 is deformed, it can carry the metal probe points 6 through the air-avoiding holes 7 and contact the burning detection points 8.

[0027] See also Figure 1-2 In this embodiment, the PET film 2 is a transparent film, and four air-avoiding holes 7 are equidistantly provided on the end surface of the PET film 2, and the upper and lower parts of the air-avoiding holes 7 are both open structures, and the positions of the air-avoiding holes 7 correspond to the positions of the metal detection points 6.

[0028] Specifically, the transparent PET film 2 can facilitate the installation of the air-avoiding holes 7 corresponding to the metal detection points 6 , thereby facilitating the subsequent contact connection between the metal detection points 6 and the burning detection points 8 .

[0029] See also Figure 1-2 In the present embodiment, four burning detection points 8 are arranged on the top of the display module FPC3, and the four burning detection points 8 correspond to the four air-avoiding holes 7 and the four metal detection points 6 respectively.

[0030] Specifically, during burning, the metal probe 5 of the burning fixture 4 is pressed down, and the protective paper 1 is deformed, causing the metal probe point 6 to contact the burning detection point 8, thereby generating an electrical connection. The four burning detection points 8 correspond to four air-avoiding holes 7 and four metal probe points 6, which ensures that when the protective paper 1 is deformed, each metal probe point 6 can contact the corresponding burning detection point 8, thereby ensuring the normal mechanical energy of the operation.

[0031] See also Figure 1-2 In this embodiment, the four metal detection points 6 are far away from each other, the four air-avoiding holes 7 are far away from each other, and the four burning detection points 8 are far away from each other.

[0032] Specifically, the four metal probe points 6 , the four air-avoiding holes 7 and the four burning detection points 8 are all arranged at intervals to leave enough space for deformation, thereby ensuring that the metal probe points 6 pass through the air-avoiding holes 7 and contact the burning detection points 8 .

[0033] See also Figure 1-2 In this embodiment, the lengths of the protective paper 1 and the PET film 2 are the same as the length of the display module FPC 3.

[0034] Specifically, the lengths of the protective paper 1 , the PET film 2 and the display module FPC 3 are the same, so that during installation, the metal detection point 6 , the air avoidance hole 7 and the burning detection point 8 can be aligned.

[0035] See also Figure 1-2 In this embodiment, the diameter of the air-avoiding hole 7 is equal to or larger than the area of ​​the burning detection point 8 .

[0036] Specifically, when the aperture of the air-avoiding hole 7 is equal to or larger than the area of ​​the burning detection point 8 , when the PET film 2 is deformed, it will not affect the metal detection point 6 from contacting the burning detection point 8 through the air-avoiding hole 7 .

[0037] It should be noted that a Flash IC burning detection point 8 is reserved on the display module FPC3 (the detection point is located near the BLU backlight module welding pad), and the black protective paper 1 (shielding paper) is designed with reference to the interlayer of a mechanical keyboard. The metal detection point 6 of the protective paper 1 is deformed when the burning fixture 4 (burner probe) is pressed down and is electrically connected to the leaking copper of the burning detection point 8 on the display module FPC3, so that firmware burning can be performed. After the burner probe is removed, the metal detection point 6 is disconnected from the burning detection point 8, and the leaking copper of the burning detection point 8 on the display module FPC3 is isolated from the outside world. The metal probe 5 of the burning fixture 4 is connected to the upper computer for communication and is used for Flash IC firmware burning. The design stack at the detection point of this patent is similar to the thin film stacking structure of a mechanical keyboard. The upper and lower detection points are in contact and conductive under stress, and the insulation state is restored after the stress is removed.

[0038] It should also be noted that SMT stands for Surface Mounted Technology, which is a circuit assembly technology that mounts pinless or short-lead surface-mounted components (abbreviated as SMC / SMD, called sheet components in Chinese) on the surface of a printed circuit board (PCB) or other substrate, and assembles them by soldering through reflow soldering or dip soldering.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A TDDI_Incell touch display module external Flash burning structure, characterized in that: Including a display module FPC (3); A PET film (2) is arranged on the top of the display module FPC (3), and a protective paper (1) is arranged on the top of the PET film (2); A metal detection point (6) is arranged at the bottom of the protective paper (1), a hole (7) for avoiding air is opened on the PET film (2), and a burning detection point (8) for burning Flash IC is reserved on the display module FPC (3).

2. According to claim 1, a TDDI_Incell touch display module external Flash burning structure is characterized in that: It also comprises a burning fixture (4), a metal probe (5) being fixed at the bottom of the burning fixture (4), and the bottom of the metal probe (5) being designed to be a circular arc angle structure.

3. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: The protective paper (1) is black paper, and four grooves are provided at equal distances at the bottom of the protective paper (1), and a metal detection point (6) is provided in each groove.

4. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: The PET film (2) is a transparent film. Four air-avoiding holes (7) are provided at equal distances on the end surface of the PET film (2). The air-avoiding holes (7) are both open structures at the top and bottom. The positions of the air-avoiding holes (7) correspond to the positions of the metal detection points (6).

5. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: Four burning detection points (8) are arranged on the top of the display module FPC (3), and the four burning detection points (8) correspond to the four air-avoiding holes (7) and the four metal detection points (6) respectively.

6. The TDDI_Incell touch display module external Flash burning structure according to claim 2, characterized in that: The metal probe (5) of the burning fixture (4) is communicatively connected to the host computer via a wire.

7. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: The top of each of the burning detection points (8) is designed with leaking copper.

8. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: The four metal detection points (6) are far away from each other, the four air-avoiding holes (7) are far away from each other, and the four burning detection points (8) are far away from each other.

9. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: The lengths of the protective paper (1) and the PET film (2) are the same as the length of the display module FPC (3).

10. The TDDI_Incell touch display module external Flash burning structure according to claim 1, characterized in that: The diameter of the air-avoiding hole (7) is equal to or larger than the area of ​​the burning detection point (8).

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