阅读说明：本技术 智能型tft触控感测装置及利用其的信息处理装置 (Intelligent TFT touch sensing device and information processing device using same ) 是由 贾丛林 田建国 杜彦宏 于 2021-05-19 设计创作，主要内容包括：本发明提供了一种智能型TFT触控感测装置,其具有：基板；TFT感测结构,形成于该基板上且其具有至少一种物理量感测型态以提供至少一种触控感测信号；可组态连接电路,形成于该基板上且与该TFT感测结构连接,用于根据组控制信号将该TFT感测结构规划成感测组态及/或规划该TFT感测结构的扫描取样组态；以及读取控制芯片,与该可组态连接电路连接,用于根据组态命令产生该组控制信号及读取该TFT感测结构所产生的所述至少一种触控感测信号以产生至少一种感测信息。(The invention provides an intelligent TFT touch sensing device, which is provided with: a substrate; a TFT sensing structure formed on the substrate and having at least one physical quantity sensing type for providing at least one touch sensing signal; the configurable connecting circuit is formed on the substrate and connected with the TFT sensing structure and used for programming the TFT sensing structure into a sensing configuration and/or programming a scanning sampling configuration of the TFT sensing structure according to a group control signal; and a reading control chip connected with the configurable connecting circuit and used for generating the set of control signals according to the configuration command and reading the at least one touch sensing signal generated by the TFT sensing structure to generate at least one sensing information.)

1. An intelligent TFT touch sensing device, comprising:

a substrate;

a TFT sensing structure formed on the substrate and having at least one physical quantity sensing type to provide at least one touch sensing signal;

the configurable connecting circuit is formed on the substrate and connected with the TFT sensing structure and used for planning the TFT sensing structure into a sensing configuration and/or planning the scanning sampling configuration of the TFT sensing structure by a set of control signals; and

the reading control chip is connected with the configurable connecting circuit and used for generating the group of control signals according to a configuration command and reading the at least one touch sensing signal generated by the TFT sensing structure so as to generate at least one sensing information;

wherein the configurable connection circuit is operable by the multi-mode gate driving circuit to provide a plurality of gate driving signals, sequential or non-sequential, in accordance with a first set of control signals of the set of control signals to drive the TFT sensing structure to form the TFT sensing structure into the sensing configuration; and the configurable connection circuit is used for providing a plurality of output connection driving signals according to a second group of control signals of the group of control signals through the operation of the sensing output connection driving circuit so as to drive the TFT sensing structure, so that a plurality of output ends of the TFT sensing structure generate the scanning sampling configuration, and the reading control chip reads the at least one touch sensing signal generated by the sensing configuration, wherein the sensing output connection driving circuit comprises a de-multiplexing circuit or a decoding circuit.

2. An intelligent TFT touch sensing device according to claim 1, wherein the TFT sensing structure has at least one sensing layer and an optical zoom layer controllable by an electric field, and the optical zoom layer is a liquid crystal array layer or a liquid lens array layer.

3. An intelligent TFT touch sensing apparatus according to claim 1, wherein the physical quantity sensing pattern comprises a capacitive sensing pattern and/or an optical sensing pattern.

4. The intelligent TFT touch sensing apparatus of claim 1, wherein the sensing configuration is a shunt configuration or a jumper configuration, and the sensing configuration is a fixed sensing configuration or a time-varying sensing configuration.

5. The intelligent TFT touch sensing device of claim 4, wherein the time-varying sensing configuration is a multi-stage sensing configuration that corresponds to different stages in the sensing process with different ones of the parallel or jumper configurations.

6. An intelligent TFT touch sensor device according to claim 1, wherein the read control chip is one selected from the group consisting of COG, TAB, COF and COP.

7. An intelligent TFT touch sensing apparatus according to claim 1, wherein at least one of the touch sensing signals is for sensing a fingerprint.

8. An intelligent TFT touch sensing apparatus according to claim 1, wherein at least one of the touch sensing signals is used for and senses touch operations.

9. The intelligent TFT touch sensing device of claim 1, wherein the read control chip has a communication interface to communicate with a CPU or a GPU to receive the configuration command and/or to transmit at least one of the sensing information to the CPU or the GPU, the configuration command is generated according to an application software, and the at least one sensing information includes raw data or encoded data of the at least one touch sensing signal.

10. An information processing device having a touch display panel and an information processing unit, wherein the touch display panel has the intelligent TFT touch sensing device according to any one of claims 1 to 9, the information processing unit is used for communicating with the reading control chip, and the information processing device is an electronic device selected from the group consisting of a smart phone, a tablet computer, a notebook computer, an all-in-one computer, a smart watch, a smart button, a smart handle, and a door access device.

Technical Field

The present invention relates to touch sensing devices, and particularly to an intelligent TFT touch sensing device.

Background

A typical touch sensing device includes a touch sensing device array and a sensing signal readout chip, which are independent of each other, wherein the touch sensing device array has a fixed resolution, and the sensing signal readout chip reads a plurality of sensing signals of the touch sensing device array in a sequential or simultaneous manner through a plurality of fixed sensing signal input pins.

However, when the application context of hardware or software changes, the general touch sensing device cannot be adaptively changed to meet the requirement of the application, which is a disadvantage of the known touch sensing device.

Therefore, there is a need in the art for a novel touch sensing device.

Disclosure of Invention

Technical problem to be solved

The present invention is directed to a touch sensing device, which can be integrated on substrates made of different materials to meet different application requirements.

Another objective of the present invention is to provide a touch sensing apparatus, which can adaptively generate different touch sensing configurations according to the requirements of different applications to optimize the operation experience of touch or fingerprint recognition of a user.

It is another object of the present invention to provide a touch sensing device, which can further improve the image resolution of fingerprint sensing by an optical zoom layer to optimize the performance of fingerprint recognition.

(II) technical scheme

To achieve the above object, an intelligent TFT touch sensing device is provided, which includes:

a substrate;

a TFT sensing structure formed on the substrate and having at least one physical quantity sensing type for providing at least one touch sensing signal;

the configurable connecting circuit is formed on the substrate and connected with the TFT sensing structure and used for programming the TFT sensing structure into a sensing configuration and/or programming a scanning sampling configuration of the TFT sensing structure by group control signals; and

and the reading control chip is connected with the configurable connecting circuit and used for generating the set of control signals according to the configuration command and reading the at least one touch sensing signal generated by the TFT sensing structure to generate at least one sensing information.

In one embodiment, the TFT sensing structure has at least one sensing layer and an optical zoom layer that is controllable by an electric field, and the optical zoom layer is a liquid crystal array layer or a liquid lens array layer.

In possible embodiments, the physical quantity sensing pattern may include a capacitive sensing pattern and/or an optical sensing pattern.

In a possible embodiment, the sensing configuration may be a shunt configuration or a jumper configuration, and the sensing configuration may be a fixed sensing configuration or a time-varying sensing configuration.

In one embodiment, the time-varying sensing configuration is a multi-stage sensing configuration, which corresponds to a plurality of different stages in the sensing process with a plurality of different parallel connection configurations or jumper configurations.

In one embodiment, the configurable connection circuit comprises a multi-mode gate driving circuit, and the multi-mode gate driving circuit is capable of providing a plurality of gate driving signals, sequential or non-sequential, according to a first set of control signals of the set of control signals, to drive the TFT sensing structure to form the TFT sensing structure into the sensing configuration.

In one embodiment, the configurable connecting circuit further includes a sensing output connection driving circuit for providing a plurality of output connection driving signals according to a second set of control signals of the set of control signals to drive the TFT sensing structure and enable a plurality of output terminals of the TFT sensing structure to generate the scanning sampling configuration for the reading control chip to read the at least one touch sensing signal generated by the sensing configuration, wherein the sensing output connection driving circuit includes a de-multiplexing circuit or a decoding circuit.

In a possible embodiment, the read control chip may be a COG chip, a TAB chip, a COF chip, or a COP chip.

In an embodiment, at least one of the touch sensing signals is for sensing a fingerprint.

In one embodiment, at least one of the touch sensing signals is used for sensing a touch operation.

In one embodiment, the read control chip has a communication interface to communicate with a CPU or a GPU to receive the configuration command and/or transmit at least one sensing information to the CPU or the GPU, the configuration command is generated according to application software, and the at least one sensing information includes original data or encoded data of the at least one touch sensing signal.

To achieve the above object, the present invention further provides an information processing device, which has a touch display panel and an information processing unit, wherein the touch display panel has the above-mentioned smart TFT touch sensing device, the information processing unit is used for communicating with the reading control chip, and the information processing device can be a smart phone, a tablet computer, a notebook computer, an all-in-one computer, a smart watch or a door access device.

Drawings

Fig. 1 schematically shows a schematic diagram of an embodiment of an intelligent TFT touch sensing device according to the present invention.

FIG. 2 schematically illustrates a block diagram of one embodiment of the configurable connection circuit of FIG. 1.

FIG. 3 schematically illustrates a block diagram of an embodiment of the read control chip of FIG. 1.

Fig. 4 schematically shows a block diagram of an embodiment of the information processing apparatus of the present invention.

[ description of reference ]

100-intelligent TFT touch sensing device; 110-a substrate; a 120-TFT sensing structure; 121-a sensing layer; 122-an optical zoom layer; 130-configurable connection circuitry; 131-a multi-mode gate drive circuit; 132-sense output connected to drive circuit; 140-reading the control chip; 141-a control unit; 142-a communication interface; 200-an information processing apparatus; 210-a touch display panel; 220-information processing unit

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. The principle of the invention is as follows:

(1) the touch sensing device is integrated on substrates made of different materials through the configurable connecting circuit so as to adapt to different application requirements and design a TFT sensing structure, thereby generating different touch sensing configurations.

(2) The touch sensing device receives different configuration commands generated by different application programs through the reading control chip and is used for controlling the configurable connecting circuit, so that the TFT sensing structure generates different touch sensing configurations adaptively according to the requirements of the different application programs, and the touch or fingerprint identification operation experience of a user is optimized.

(3) The touch sensing device further improves the image resolution of fingerprint sensing through the optical zoom layer so as to optimize the performance of fingerprint identification.

Referring to fig. 1, a schematic diagram of an embodiment of an intelligent TFT touch sensing device according to the invention is shown. As shown in fig. 1, the intelligent TFT touch sensing device 100 has a substrate 110, a TFT sensing structure 120, a configurable connecting circuit 130, and a reading control chip 140.

The substrate 110 may be a glass substrate, a plastic substrate, or a sapphire substrate.

The TFT sensing structure 120 is formed on the substrate 110 and has at least one physical quantity sensing type for providing at least one touch sensing signal, wherein the TFT sensing structure 120 has at least one sensing layer 121 and an optical zoom layer 122 controllable by an electric field, the optical zoom layer 122 is a liquid crystal array layer or a liquid lens array layer, and the at least one sensing layer 121 may include an electrode layer or a photo sensing device layer, or both the electrode layer and the photo sensing device layer, such that the physical quantity sensing type may include a capacitive sensing type and/or an optical sensing type. Since the electrode layer provides the capacitive touch sensing function or the optical sensing device layer provides the optical touch sensing function, or the electrode layer and the optical sensing device layer are integrated in the sensing layer to provide the capacitive touch sensing function and/or the optical touch sensing function, which are the prior art, detailed structures and working principles of the sensing layer 121 are not repeated herein.

Configurable connection circuit 130 is formed on substrate 110 and connected to TFT sensing structure 120 for programming TFT sensing structure 120 into a sensing configuration and/or programming TFT sensing structure 120 into a scan sampling configuration with a set of control signals, wherein the sensing configuration can be a parallel connection configuration or a jumper connection configuration, and the sensing configuration can be a fixed sensing configuration or a time-varying sensing configuration. In one possible embodiment, the time-varying sensing configuration may be a multi-stage sensing configuration, that is, it may be applied to a large-sized touch screen by using a plurality of different parallel configurations or jump configurations corresponding to a plurality of different stages in the sensing process.

In addition, the configurable connection circuit may include a multi-mode gate drive circuit and a sense output connection drive circuit. Referring to FIG. 2, a block diagram of one embodiment of the configurable connection circuit 130 of FIG. 1 is shown. As shown in fig. 2, the configurable connection circuit 130 includes a multi-mode gate driving circuit 131 and a sensing output connection driving circuit 132, wherein the multi-mode gate driving circuit 131 is coupled to the TFT sensing structure 120 and is capable of providing a plurality of sequential or non-sequential gate driving signals VG (1) -VG (m) according to a first control signal CNTL1 of the set of control signals, m being an integer greater than 1, to drive the TFT sensing structure 120 so as to enable the TFT sensing structure 120 to form the sensing configuration; the sensing output connection driving circuit 132 is configured to provide a plurality of output connection driving signals VOCON (1) -VOCON (n) with a second set of control signals CNTL2 of the set of control signals, where n is an integer greater than 1, to drive the TFT sensing structure 120, so that a plurality of output terminals OUT (1) -OUT (k) of the TFT sensing structure 120 generate the scanning sampling configuration, and the reading control chip 140 reads the at least one touch sensing signal generated by the sensing configuration, and k is an integer greater than 1. Additionally, in a possible embodiment, the sense output connection drive circuit 132 may include a de-multiplexing circuit or a decoding circuit.

The read control chip 140, connected to the configurable connection circuit 130, is used for generating the set of control signals and reading the at least one touch sensing signal generated by the TFT sensing structure 120 in a configuration command to generate at least one sensing information, wherein the at least one touch sensing signal is used for sensing a fingerprint or sensing a touch operation, and the at least one sensing information includes original data or encoded data of the at least one touch sensing signal.

In addition, in possible embodiments, the read control chip 140 may be a Chip On Glass (COG) chip, a Tape Automated Bonding (TAB) chip, a Chip On Film (COF) chip, or a chip on film (COP) chip.

In addition, the read control chip 140 may have a communication interface (e.g., an I2C (inter-integrated circuit) interface, an SPI (serial interface device) interface, or an LVDS (low voltage differential signaling) interface) to communicate with the CPU or the GPU to receive the configuration command and transmit at least one of the sensing information to the CPU or the GPU, wherein the configuration command is generated according to application software. Referring to fig. 3, a block diagram of an embodiment of the read control chip 140 of fig. 1 is shown, wherein the read control chip 140 has a control unit 141 and a communication interface 142, the control unit 141 communicates with a CPU (or a GPU) through the communication interface 142 to receive a configuration command CMD, generates the set of control signals (CNTL1, CNTL2) and the at least one touch sense signal generated by the plurality of output terminals OUT (1) to OUT (k) of the read TFT sensing structure 120 according to the configuration command CMD, generates at least one sensing information dsense according to the at least one touch sense signal, and transmits the at least one sensing information dsense to the CPU (or the GPU).

According to the above description, the intelligent TFT touch sensing device of the present invention can be adapted to different application requirements and adopt different materials to implement the substrate 110, for example, a plastic substrate is used to correspond to the application outside or on the back of the screen of the smart phone, or a glass substrate is used to correspond to the application inside the screen of the smart phone; and generating different touch sensing configurations adaptively according to the requirements of different application programs so as to optimize the operation experience of touch or fingerprint identification of the user. For example, when the touch requirement of the application is low-resolution touch, only the capacitive touch sensing function is activated, and when the touch requirement of the application is high-resolution touch, such as fingerprint recognition or light pen input operation, the optical touch sensing function is activated. In addition, the optical zoom layer 122 disposed in the TFT sensing structure 120 of the present invention can further improve the image resolution of fingerprint sensing to optimize the performance of fingerprint recognition.

In addition, in a possible embodiment, the present invention may provide a standby power supply capacitor on the substrate 110 to provide power to the intelligent TFT touch sensing device 100 when the power supply of the intelligent TFT touch sensing device 100 is interrupted.

In accordance with the foregoing description, the present invention further provides an information processing apparatus. Referring to fig. 4, a block diagram of an information processing apparatus according to an embodiment of the invention is shown. As shown in fig. 4, the information processing apparatus 200 has a touch display panel 210 and an information processing unit 220, wherein the touch display panel 210 has the aforementioned smart TFT touch sensing apparatus 100, the information processing unit 220 has the aforementioned CPU (or GPU) and is used for communicating with the read control chip 140, and the information processing apparatus 200 can be a smart phone, a tablet computer, a notebook computer, an all-in-one computer, a smart watch or an access device.

From the above description, it can be seen that the present invention has the following advantages:

(1) the touch sensing device can be integrated on substrates made of different materials to meet different application requirements.

(2) The touch sensing device can adaptively generate different touch sensing configurations according to the requirements of different application programs so as to optimize the operation experience of touch or fingerprint identification of a user.

(3) The touch sensing device can further improve the image resolution of fingerprint sensing through the optical zoom layer so as to optimize the performance of fingerprint identification.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.