TWM605325U - Interactive display system - Google Patents

Abstract

A display system includes: a controller executes or controls the overall operation of the display system; a transparent display module is provided with a display substrate, the display substrate arrays a plurality of pixel units, the pixel unit has three emitting red, green and blue light. Micro LEDs are a group, the group of micro LEDs are stacked on a driver IC to maintain electrical connection with the controller; a touch sensor module is configured with a transparent display module to sense a user’s touch gesture Or touch information is sent to the controller; and, a camera lens captures the user's signal, which is recognized by a user expression tracker and sent to the controller. Because the driver IC has a complete control circuit, a simple series circuit can electrically connect the pixel unit, so that the display substrate has a maximized transparent area, and the interaction effect of humans and machines can effectively solve the disadvantages of the prior art.

Description

Interactive display system

This creation is about the application of Transparent Display, especially an interactive display system through human-computer interaction (Interaction).

In the known display, a light-emitting diode (Light Emitting Diode, abbreviated as LED) is assembled between glass and glass. The LED is electrically connected to transparent electrode materials to form an LED display. The LED display is transparent and used in Part of the external wall of the building, smart phone or exhibition venue.

The electrical connection referred to here usually refers to the circuit array (or active array) operating (or controlling) the LED to emit a colored light. Therefore, the more LEDs mentioned, the larger and more complex the circuit array will affect the transparency of the display.

Therefore, how to improve the structure of the display has become an urgent issue for this creation.

In view of this, the author of this case proposed a new display system with the main purpose of adopting an interactive structure and matching a display module with better transparency to effectively solve the drawbacks of the previous technology.

To achieve the above-mentioned purpose, the display system of this creation includes: a controller executes or controls the overall operation of the display system; a transparent display module has a display substrate, the display substrate arrays a plurality of pixel units, and each pixel unit has its own Three micro LEDs that emit red, green and blue light form a group. The group of micro LEDs are stacked on a driving IC to maintain electrical connection with the controller; a touch sensing module is configured with a sensor through a transparent display module A user’s touch gesture or touch information is sensed and sent to the controller; and a camera lens captures the user’s signal, which is recognized by a user expression tracker and sent to the controller.

Wherein, the display substrate is one of a flexible transparent substrate, a glass substrate and a PCB circuit board. Therefore, the interaction between humans and machines is used to produce interactive effects, so that the display system can display an application's execution screen, lock screen or background screen and other functions.

In this way, this creation allows the user to interact with the transparent display module to produce an interactive effect through the user's expression tracker and the touch sensing module. Moreover, the driver IC has a complete control circuit, and can be electrically connected to the pixel unit with a simple series circuit, so the display substrate has a maximized transparent area, which effectively solves the drawbacks of the prior art.

In order to make the purpose, features and advantages of this creation easy to understand, one or more preferred embodiments are described in detail as follows with the accompanying drawings.

Figure 1 shows a display system 10 that has the convenience of being portable, or can be combined with surrounding objects for human-machine interaction, and devices that reflect various purposes, such as mobile phones, smart phones, laptops, Tablet computer devices, e-book devices, smart TVs, digital broadcasting devices, personal digital assistants (Personal Digital Assistant, abbreviated PDA), portable multimedia players (Portable Multimedia Player, abbreviated PMP), navigation devices, architectural display screens, cars Use head-up displays and e-readers, etc.

The display system 10 is the same as existing displays such as a liquid crystal display (Liquid Crystal Display, abbreviated LCD) or a light-emitting diode (Light Emitting Diode, abbreviated LED), through a user interface, a screen, and a graphical user interface (Graphical User Interface, The abbreviation GUI) is one of the interface functions that display processed or pending information. Therefore, the display system 10 can display the execution screen, lock screen, or background screen of an application, and can also use the interaction of humans and machines to produce interactive effects.

The hardware configuration of the display system 10 is represented by a block diagram, and includes: a controller 11, an input unit 12, an output unit 15, a communication unit 20, and other hardware 23. It should be understood that, in addition to these hardware, the display system 10 can also be replaced with similar zero (assembly) components. When necessary, the display system 10 may omit one (or more) hardware or zero (component) components.

Among them, the controller 11 is a hardware structure such as a central processing unit (Central Processing Unit, abbreviated CPU) or an application processor (Application Processor, abbreviated AP), and a set of operating system (Operating System, abbreviated OS) can be installed. Perform or control the overall operation of the display system 10.

The input unit 12 referred to here generally refers to a touch panel, a small keyboard (Keypad), a dome switch (Dome Switch), a jog wheel (Jog Wheel), or a jog switch (Jog Switch).

Specifically, the input unit 12 includes: a touch sensing module 13 and a key sensing module 14 of the user interface. The key sensing module 14 recognizes through hardware keys (such as arrow keys, Meta key or mouse) input user command. The input unit 12 also has a voice sensing module (not shown), a sensor 24 (such as a microphone, etc.) of the other hardware 23 receives a user’s voice, and the voice recognition engine recognizes the voice information After that, the information is input or transmitted to the controller 11.

The touch sensing module 13 uses the sensor 24 to use the capacitive overlay method (Capacitive Overlay Method), the resistive overlay method (Resistive Overlay Method), the infrared beam method (Infrared Beam Method), and the surface acoustic wave method. (Surface Acoustic Wave Method), Integral Strain Gauge Method and Piezoelectric Method. Proximity Touch or sensing touch of the user’s touch gesture or touch Information, and input or send to the controller 11.

Therefore, the sensor 24 is selected from a transmission type photoelectric sensor (Transmission Type Photoelectric Sensor), a direct reflection type photoelectric sensor (Direct Reflection Type Photoelectric Sensor), a mirror reflection photoelectric sensor (Mirror Reflection Photoelectric Sensor), High Frequency Oscillation Type Proximity Sensor, Capacitance Type Proximity Sensor, Magnetic Type Proximity Sensor, and Infrared Proximity Sensor One of Proximity Sensors, which senses touch gestures or touch information such as tap, double tap, touch, hold, drag, panning, flick, and drag and drop.

The output unit 15 includes a transparent display module 16 and a sound output module 17. The transparent display module 16 outputs video data stored in a memory 25 of other hardware 23, and the sound output module 17 plays and stores it in Audio data in memory 25. Of course, the communication unit 20 receives audio and/or video signals, which can also be played/output via the output unit 15. In addition, the sensor 24 is configured on the transparent display module 16 to sense the user's touch gesture or touch information.

The communication unit 20 is a hardware structure that connects to external networks or devices, and is divided into: a short-range communication module 21 and a remote communication module 22. Among them, the short-range communication module 21 uses Bluetooth, Ultra Wideband (UWB), Zig Bee, Near Field Communication (NFC), and infrared data technology (Infrared Data Association). , Abbreviation IrDA) and Wi-Fi Direct (Wi-Fi Direct, abbreviation WFD) and other communication technologies. The remote communication module 22 adopts one of the communication technologies such as mobile communication (Universal Mobile Telecommunications System, abbreviated as UMTS) and the Internet.

In addition, the other hardware 23 has a camera lens 26 and a user expression tracker 27. The camera lens 26 captures the rotation angle, elevation or depression angle of the user's head, as well as the orientation and changes of facial features, such as facial expressions. The signals recognized by the user's expression tracker 27 for conversion, eye direction and gaze angle, etc., are sent to the controller 11 to serve as tracking data for human-computer interaction.

FIG. 2 is a top view. The transparent display module 16 of the display plane includes three light emitting devices 30 side by side. One display substrate 31 of the light-emitting device 30 is configured with two electronic circuits 32, which can connect a module connector 33 and a plurality of pixel units 34 in series. The controller 11 is electrically connected to the module connector 33 of each light-emitting device 30, and operates the pixel unit 34 to emit one of the three primary colors of red, green, and blue (RGB) light. These pixel units 34 are arrayed on a single side of the display substrate 31, and energization is sufficient to form a pattern or a continuous image on a single side of the transparent display module 16.

Wherein, the display substrate 31 is one of a flexible transparent substrate, a glass substrate and a PCB circuit board. The display substrate 31 is transparent. Each pixel unit 34 occupies the smallest surface area of the display substrate 31, provides an excellent filling rate, and has the advantage of maximizing the transparent area, making the light emitting device 30 an ideal choice for the transparent display module 16.

Fig. 3 is an enlarged view showing the specific structure of the first embodiment of the pixel unit 34. In the figure, the pixel unit 34 has a driver IC 40. The driver IC 40 is a die formed by dicing an integrated circuit wafer. The die contains a control circuit that is electrically connected to an external bonding pad.

The bonding pad defining the top surface of the driving IC 40 is the upper bonding pad 41. Two rows of upper layer pads 41 of different lengths are in the middle of the top surface of the driver IC 40, and are electrically connected to three micro LEDs 35 in a group. Each of the group of micro LEDs 35 has a row of upper bonding pads 41 on both sides, which are the first pin 42, the second pin 43, the third pin 44, the fourth pin 45, and the fifth pin 46, respectively.

FIG. 4 is a front view of the first embodiment, showing that the solder pad on the bottom surface of the driver IC 40 is regarded as the lower layer solder pad 47. Through the silicon through hole (Through Silicon Via, abbreviated as TSV) process, a plurality of through silicon vias 48 that penetrate the driver IC 40 are formed. The through silicon vias 48 allow the upper layer pad 41 to be vertically connected to the corresponding lower layer pad 47 to form the control circuit Part. Through the solder paste 36 (or conductive silver glue), the lower layer solder pad 47 is electrically connected to the electronic circuit 32 of the display substrate 31 (see FIG. 3).

In the figure, the micro LED 35 is a die cut from a single wafer. The size of the die is below 100 μm and the thickness is reduced to below 50 μm. Therefore, the size of the micro LED 35 is from 100 μm to 1000 μm, and the thickness is from 100 μm to 500 μm. The general LED. In addition, the micro LED 35 is stacked on one side of the driver IC 40, and different upper bonding pads 41 are soldered with the N pole 37 and the P pole 38, and electrically connected to the control circuit of the driver IC 40 to form a simple electrical circuit. After being energized, the micro LED 35 emits a monochromatic light. This group of micro LED 35 gathers three, which can emit red, green and blue light respectively, which meets the requirements of the pixels for the three primary colors of red, green and blue (RGB).

In addition, the pixel unit 34 has a resin molded part 39, which is transparent and adheres to the visible surface of the group of micro LED 35 and the driving IC 40 (including the upper layer pad 41), but does not The light of the micro LED 35 is shielded.

FIG. 5 is a block diagram. In the functional configuration of the control circuit 50, the first pin 42 is the ground of the control circuit 50 (or driver IC), and the third pin 44 supplies power to the control circuit 50. The second pin 43 is an input terminal, and the fifth pin 46 serves as an output terminal to form a single-wire data clock recovery communication, so that each driver IC can be connected in series for display data communication. As for the fourth pin 45 for error detection, it prevents bad nodes from blocking the use of the transparent display module. To put it simply, if the damaged driver IC is excluded from the loop and directly crossed into the next normal driver IC, subsequent operations can be carried out smoothly, which is the performance of the fourth pin 45.

In addition, the control circuit 50 has a pulse width modulator and a data lock 51 to overcome the shortcomings of analog dimming, such as wavelength change and uneven brightness. A constant current driver 52 of the control circuit 50 provides a constant current to any micro LED 35 to emit red light, green light or blue light.

FIG. 6 is a perspective view showing the second embodiment of the pixel unit 34 ′. Its structure is substantially the same as that of the first embodiment. The difference is that three more metal wires 53 are covered by the resin molding part 39.

Secondly, the N pole 37' on the top surface of the micro LED 35 is electrically connected to the metal wire 53, which is electrically connected to the control circuit of the drive IC 40, and the control circuit is electrically connected to the P pole 38' on the bottom surface of the micro LED 35 (see Section 7). Figure) Forming an electrical circuit.

Figure 8 is a front view showing the third embodiment of the pixel unit 34". Its structure is roughly the same as that of the second embodiment. The difference is that there is no metal wire, but one more micro metal pillar 54 and one ITO transparent conductive膜55。 Film 55.

Wherein, the N pole 37' on the top surface of the micro LED 35 is electrically connected to the micro metal pillar 54 through the ITO transparent conductive film 55, and the micro metal pillar 54 is electrically connected to the upper layer bonding pad 41 and is arranged next to the group of micro LED 35 through The control circuit of the driver IC 40 is electrically connected to the P pole 38' on the bottom surface of the micro LED 35, and also forms an electrical loop.

In addition, the resin molding part 39' adheres to the visible surface of the micro LED 35, the driver IC 40, the upper layer pad 41, the micro metal pillar 54 and the ITO transparent conductive film 55. After energization, the transparent resin molding part 39' and the ITO transparent conductive film 55 will not shield the light emitted by the micro LED 35.

10: Display system 11: Controller 12: Input unit 13: Touch sensor module 14: Button sensing module 15: output unit 16: Transparent display module 17: Sound output module 20: Communication unit 21: Short-range communication module 22: Remote communication module 23: other hardware 24: Sensor 25: memory 26: camera lens 27: User emoji tracker 30: Light-emitting device 31: Display substrate 32: Electronic circuit 33: Module connector 34, 34', 34'': pixel unit 35: Micro LED 36: solder paste 37, 37': N pole 38, 38': P pole 39, 39': resin molding part 40: Driver IC 41: Upper solder pad 42: first pin 43: second pin 44: third pin 45: fourth pin 46: Fifth pin 47: Lower solder pad 48: Through Silicon Via 50: control circuit 51: Pulse width modulator and data lock 52: Constant current driver 53: Metal wire 54: Miniature metal column 55: ITO transparent conductive film

Figure 1 shows the better hardware configuration of the creative display system. Figure 2 overlooks the transparent display module. Fig. 3 overlooks the first embodiment of the enlarged pixel unit. Figure 4 is a front view of the pixel unit of Figure 3. Figure 5 plots the functional configuration of the control circuit. Figure 6 shows the second embodiment of a specific pixel unit. Figure 7 is a front view of the pixel unit of Figure 6. Fig. 8 is the third embodiment of the enlarged pixel unit.

10: Display system

11: Controller

12: Input unit

13: Touch sensor module

14: Button sensing module

15: output unit

16: Transparent display module

17: Sound output module

20: Communication unit

21: Short-range communication module

22: Remote communication module

23: other hardware

24: Sensor

25: memory

26: camera lens

27: User emoji tracker

Claims (8)

An interactive display system including: A controller (11) executes or controls the overall operation of the display system (10); A transparent display module (16) is provided with at least one display substrate (31), the display substrate (31) is arrayed with a plurality of pixel units (34), and the pixel unit (34) has three miniature units emitting red, green and blue light. The LED (35) is a group, and the group of micro LEDs (35) are stacked on a driving IC (40) to maintain an electrical connection with the controller (11); A touch sensing module (13) is equipped with a sensor (24) through the transparent display module (16) to sense a user's touch gesture or touch information and send it to the controller (11); and A camera lens (26) captures the user's signal, which is recognized by a user expression tracker (27) and sent to the controller (11). The interactive display system according to claim 1, wherein the display substrate (31) is one of a flexible transparent substrate, a glass substrate and a PCB circuit board. The interactive display system according to claim 1, wherein the pixel unit (34) further has a resin molded part (39), and the resin molded part (39) is transparent and adheres to the group of micro LEDs (35). ) The visible surface with the driver IC (40). The interactive display system according to claim 1, wherein the driving IC (40) is provided with a control circuit (50), and the control circuit (50) includes: One second pin (43) of the single-wire data clock recovery communication input and a fifth pin (46) of the output; A fourth pin (45) to detect and prevent bad nodes from blocking; A pulse width modulator and data lock (51); and A constant current driver (52) that provides constant current to the micro LED (35). The interactive display system according to claim 4, wherein the plurality of upper layer pads (41) and the plurality of lower layer pads (47) of the control circuit (50) are provided on different sides of the driver IC (40), and the A through silicon via (48) of the driver IC (40) maintains an electrical connection relationship between the corresponding upper-layer solder pad (41) and the lower-layer solder pad (47). The interactive display system according to claim 5, wherein the N pole (37) and the P pole (38) on the bottom surface of the micro LED (35) are electrically connected to the corresponding upper bonding pad (41) of the driver IC (40). The interactive display system according to claim 5, wherein the P pole (38') on the bottom surface of the micro LED (35) is electrically connected to the control circuit (50); One end of a metal wire (53) is electrically connected to the control circuit (50), and the other end is electrically connected to the N pole (37') on the top surface of the micro LED (35). The interactive display system according to claim 5, wherein a miniature metal column (54) is electrically connected to the control circuit (50) and is arranged beside the group of miniature LEDs (35); An ITO transparent conductive film (55) electrically connects the micro metal pillar (54) with the N pole (37') on the top surface of the micro LED (35); The P pole (38') on the bottom surface of the micro LED (35) is electrically connected to the control circuit (50); and The resin molding part (39') adheres to the visible surface of the micro LED (35), the driver IC (40), the upper layer bonding pad (41), the micro metal pillar (54) and the ITO transparent conductive film (55).

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