Electronic system
By designing an electronic system of multiple light emitting units and driving units in a high-resolution transparent display, driving the light emitting units with optical signals, the circuit distribution design problem is solved, transparency and brightness are improved, and the opening rate is enhanced, and image distortion is reduced.
Patent Information
- Application Number
- CN202410735680.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-09
- Filing Date
- 2024-06-07
- Publication Date
- 2024-12-10
AI Technical Summary
In high-resolution transparent displays, the distribution design of circuits and electronic components becomes more difficult, affecting their transparency and opening ratio.
An electronic system is designed in which the substrate comprises a plurality of light emitting units and a driving unit, and an optical signal is provided to the driving unit through a signal providing unit (such as a laser emitter or light source and digital mirror element), and the driving unit drives the receiving optical signal. Light emitting units, the signal path is defined by air, optical fiber or combinations thereof, and the line layer uses transparent conductive materials to ensure that the optical signal covers the driving unit to improve resolution and transparency.
The transparency and brightness of the substrate are improved, the number of lines is reduced, the light transmittance area is increased, the opening rate is increased, and the radial distortion of the image is reduced, achieving a better transparent display effect.
Smart Images
Figure CN119107889A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to an electronic system. Background Art
[0002] Transparent displays, also known as see-through displays, have a transparent substrate to provide image content on the screen without obstructing objects on the back of the screen. The aperture ratio of a transparent display is one of the key factors affecting its transparency. In order to improve the aperture ratio of a transparent display, the distribution of circuits and electronic components on the substrate needs to be carefully designed. In addition, the circuit can be made of transparent materials to increase transparency. However, in high-resolution transparent displays, the distribution design of circuits and electronic components will become more difficult. Summary of the invention
[0003] The purpose of this application is to provide an electronic system.
[0004] An electronic system of the present application includes a substrate and a control unit. The substrate includes at least one light-emitting unit and at least one driving unit corresponding to the light-emitting unit. The light-emitting unit and the driving unit are arranged on the surface of the substrate. The driving unit includes a signal receiver. The control unit includes a signal providing unit for providing a light signal to the signal receiver. The driving unit provides an electrical signal to the corresponding light-emitting unit according to the light signal received by the signal receiver from the signal providing unit of the control unit.
[0005] In one embodiment, the signal providing unit comprises a laser transmitter.
[0006] In one embodiment, the signal providing unit comprises a light source and a digital mirror element, and the light source may comprise a laser transmitter.
[0007] In one embodiment, the light spot projected by the signal providing unit covers at least a portion of the signal receptor of the driving unit.
[0008] In one embodiment, the substrate includes a plurality of light emitting units and a plurality of driving units, and the driving units correspond to the light emitting units respectively.
[0009] In one embodiment, the electrical signal is a signal including at least one of a current and a voltage.
[0010] In one embodiment, the electronic system further comprises a signal path along which the optical signal travels, the signal path being defined by at least one medium comprising air, an optical fiber, a light guide, or a combination thereof.
[0011] In one embodiment, the driving unit includes a circuit and a driving element, and the driving element and the signal receiver are electrically connected to the circuit.
[0012] In one embodiment, the driving element comprises an integrated circuit or a thin film driving element.
[0013] In one embodiment, the thin film driving element includes a thin film transistor.
[0014] In one embodiment, the driving element is a micron-sized element, such as a micro integrated circuit.
[0015] In one embodiment, the driving element and the signal receiver are integrated into a module.
[0016] In one embodiment, the substrate includes a circuit layer disposed on at least one surface of the substrate and electrically connected to the light emitting unit and the driving unit.
[0017] In one embodiment, the circuit layer includes power circuits.
[0018] In one embodiment, the power lines include metal material or transparent conductive material, or a combination thereof.
[0019] In one embodiment, the transparent conductive material includes nanosilver, indium zinc oxide (IZO), indium tin oxide (ITO), or a combination thereof.
[0020] In one embodiment, the substrate is a transparent substrate.
[0021] In one embodiment, a resolution of the signal providing unit is not less than a resolution of the driving unit on the substrate.
[0022] In one embodiment, the scanning resolution of the laser emitter is not less than the resolution of the driving unit on the substrate.
[0023] In one embodiment, the resolution of the digital mirror element is not less than the resolution of the drive unit on the substrate.
[0024] In one embodiment, the substrate is a film layer.
[0025] In one embodiment, the substrate is a flexible substrate.
[0026] In one embodiment, the substrate is a windshield.
[0027] In one embodiment, the electrical signal is a current or a voltage for driving the light emitting units.
[0028] In one embodiment, the light emitting unit includes at least one light emitting element, and the light emitting element includes a self-luminous element.
[0029] In one embodiment, the self-luminous element includes a light emitting diode (LED), a sub-millimeter light emitting diode (MiniLED), or a micro light emitting diode (Micro LED).
[0030] In one embodiment, the light emitting elements are driven by an active matrix (AM) method or a passive matrix (PM) method. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 A schematic diagram of the electronic system of the present application;
[0032] FIG. 2(A) and FIG. 2(B) are schematic diagrams showing the configuration of the light emitting element and the driving unit of the present application.
[0033] Figure 3(A) to Figure 3(C) This is a schematic diagram of the optical signal of the present application traveling and projected onto a substrate.
[0034] Figure 4 It is a schematic diagram of the scanning direction of the signal providing unit in one embodiment of the present application.
[0035] Figure 5 It is a schematic diagram of the relationship between a light spot projected on a substrate and a signal receiver in one embodiment of the present application. DETAILED DESCRIPTION
[0036] The electronic systems according to various embodiments of the present invention will be described below with reference to the relevant drawings, wherein the same elements will be described with the same reference numerals; the ratios between elements in the drawings are for understanding the structure, but not for limitation.
[0037] like Figure 1 As shown, the present application relates to an electronic system, which mainly includes a substrate 1 and a control unit 2. In this embodiment, the control unit 2 is separately provided from the substrate 1, and the control unit 2 is electrically disconnected from the substrate 1. However, the connection method between the substrate 1 and the control unit 2 is not limited thereto. In other embodiments, the control unit 2 can be electrically connected to the substrate 1 through a wire.
[0038] The substrate 1 has at least one light-emitting unit 11 and at least one driving unit 12 corresponding to the light-emitting unit 11. The light-emitting unit 11 and the driving unit 12 are arranged on one surface of the substrate 1, but are not limited thereto. The light-emitting unit 11 includes at least one light-emitting element, and the light-emitting element includes a self-luminous element, and the self-luminous element includes a light-emitting diode (LED), a sub-millimeter light-emitting diode (Mini LED) or a micro light-emitting diode (Micro LED). In addition, the light-emitting diode, the sub-millimeter light-emitting diode or the micro light-emitting diode can be a transparent light-emitting diode. Figure 1As shown, a plurality of light-emitting units 11 and a plurality of driving units 12 are arranged on a substrate 1. The driving unit 12 comprises a signal receiver 121, a circuit and a driving element, and the driving element comprises an integrated circuit, a thin film driving element or a combination thereof, but is not limited thereto, for example, the integrated circuit may be a micron-level integrated circuit. The thin film driving element comprises a thin film transistor, in particular a micron-level thin film transistor or a micron-level thin film diode.
[0039] The substrate 1 may be a film layer or a transparent substrate. For example, the substrate 1 may be a glass substrate, a polyimide (PI) substrate or a combination thereof. In addition, the substrate 1 may also be a flexible thin substrate, such as a film. In addition, the substrate 1 may have a multilayer structure.
[0040] The control unit 2 includes a signal providing unit 21 for providing an optical signal to a signal receiver 121 of the driving unit 12, and then the driving unit 12 provides a current or voltage according to the received optical signal to drive the corresponding light emitting unit 11. The signal providing unit 21 can be, for example but not limited to, a laser transmitter, or a device with a digital reflector element and a light source. In some cases, the light emitting unit 11 can be driven by an active matrix (AM) method or a passive matrix (PM) method.
[0041] like Figure 1 As shown, the light emitting unit 11 and the driving unit 12 are arranged in a one-to-one manner, wherein one driving unit 12 only provides an electrical signal (such as current or voltage) to the light emitting unit 11, but is not limited thereto. In other embodiments, one driving unit 12 provides electrical signals (current or voltage) to multiple light emitting units 11, or multiple driving units 12 can drive one light emitting unit 11.
[0042] like Figure 1 As shown in FIG2(A), the light emitting unit 11 and the driving unit 12 are arranged on the same surface S1 of the substrate 1. In another embodiment, as shown in FIG2(B), the light emitting unit 11 is arranged on one surface S1 of the substrate 1, the driving unit 12 is arranged on another surface S2 of the substrate 1, and the vertical projection of the light emitting unit 11 relative to the substrate 1 covers the corresponding driving unit 12. However, the signal receiver 121 of the driving unit 12 is arranged on the surface S1 where the light emitting unit 11 is located.
[0043] The substrate 1 may further include a circuit layer 13, which is located on the surface S1 of the substrate 1, and the circuit layer 13 is electrically connected to the light-emitting unit 11 and the driving unit 12. In another embodiment, as shown in FIG. 2(B), two circuit layers 13 and 13' are respectively disposed on two opposite surfaces of the substrate 1, for electrically connecting the light-emitting unit 11, the driving unit 12 and the signal receiver 121.
[0044] Each circuit layer 13 / 13 ′ includes a plurality of power circuits, and the power circuits include metal materials, transparent conductive materials or a combination thereof. For example, the transparent conductive material includes nano silver, indium zinc oxide (IZO), indium tin oxide (ITO) or a combination thereof.
[0045] As shown in FIG. 3(A), the optical signal OS projected from the signal providing unit 21 is directly transmitted to the signal receiver 121 along the signal path without being reflected or refracted. In another embodiment, as shown in FIG. 3(B), the optical signal OS projected from the signal providing unit 21 is first transmitted to a reflector 3, such as a reflector, and then the optical signal OS is reflected and transmitted to the signal receiver 121. In another embodiment, as shown in FIG. 3(C), the optical signal OS projected from the signal providing unit 21 is first transmitted through the optical fiber 4 and then transmitted to the signal receiver 121. In addition, the optical signal OS projected from the signal providing unit 21 can also be transmitted through a light guide, or through a combination of air, optical fiber, and light guide.
[0046] In one embodiment, the signal providing unit 21 of the control unit 2 provides an optical signal toward the driving unit 12 along a predetermined direction, and forms at least one light spot 5 on the substrate 1. In addition, the light spot 5 projected on the substrate 1 at least covers at least a portion of the signal receptor 121 of the driving unit 12 for signal transmission. For example, the light spot 5 projected on the signal receptor 121 can be designed as a rod or other shape, and its area is larger than that of a single signal receptor 121, so as to cover the signal receptor 121 of the driving unit 12 as much as possible. This design can prevent the situation of inaccurate projection caused by external vibration.
[0047] In one embodiment, the driving unit 12 includes a circuit and a driving element, and the driving element and the signal receiver 121 are electrically connected to the circuit; the driving element 12 may include an integrated circuit or a thin film driving element, and the thin film driving element may include a thin film transistor; in addition, the driving element may be a micron-level element, such as a micro integrated circuit. In addition, the driving element and the signal receiver 121 may be separately arranged elements, and may be integrated into a module.
[0048] like Figure 4 As shown, the signal providing unit 21 first projects a plurality of light spots 5 on the driving units 12 of the first row 1211 on the substrate along the first direction X, and then the signal providing unit 21 sequentially projects a plurality of light spots 5 on the second row 1212, a plurality of light spots 5 on the third row 1213, a plurality of light spots 5 on the fourth row, etc. along the second direction Y, and so on. However, the scanning direction of the signal providing unit 21 on the substrate 1 is not limited thereto.
[0049] In such Figure 5In the illustrated embodiment, the density of the light spots 5 projected on the substrate 1 is greater than the density of the signal receivers 121 on the substrate 1. In this embodiment, the distance between two adjacent light spots 5 in at least one direction is smaller than the distance between two adjacent signal receivers 121 in the same direction. Preferably, the distance between two adjacent light spots 5 in any direction is smaller than the distance between two adjacent signal receivers 121 in the same direction. This design can avoid the formation of moiré patterns when the present application is working. In other words, the scanning resolution of the laser emitter or the resolution of the digital mirror element is not less than the resolution of the driving unit on the substrate, or both are not less than the resolution of the driving unit on the substrate.
[0050] In one embodiment, the signal providing unit is a laser scanner, and the optical signal provided by the signal providing unit is a light beam, and the light beam sequentially scans the driving units on the substrate. In addition, the signal providing unit can be a low-power laser scanner, and the driving unit can be used as an amplifier to amplify the optical signal from the signal providing unit to avoid energy waste of the signal providing unit.
[0051] In another embodiment, the signal providing unit may be a digital micromirror device (DMD) in combination with a light source, and the provided optical signals are arranged in a matrix that can be received by a plurality of signal receivers simultaneously.
[0052] The electronic system of the present application can be applied to vehicles such as vehicles or aircraft and used as a head-up display. In one embodiment, the electronic system can be used as a head-up display of a vehicle. The present application regards the windshield of the vehicle as a substrate, a transparent circuit layer is provided on its surface, and the light-emitting unit and the driving unit are directly arranged on the substrate (windshield) and electrically connected to the transparent circuit layer.
[0053] In one embodiment, the control unit of the present application can be separated from the substrate (windshield) and electrically disconnected. In other words, the control unit is installed in an area different from the substrate, and when the substrate serves as a windshield, the control unit is installed in an area outside the windshield. The control unit provides an optical signal from a signal providing unit, and transmits the optical signal to a signal receiver of a driving unit on the substrate (windshield). In the present embodiment, the signal providing unit is a laser scanner, such as a low-power laser scanner, for providing a laser beam as an optical signal. After the signal receiver of the driving unit receives the laser beam, the driving unit converts the optical signal into a driving signal according to the characteristics of the laser beam, such as the intensity, ratio or type of the laser beam, and then the driving unit provides a current or voltage to the light-emitting unit according to the driving signal to drive the light-emitting unit, and then drives the light-emitting unit to emit light according to the current or voltage.
[0054] In another embodiment, the light emitting unit and the driving unit may be directly disposed on a transparent flexible substrate, such as a transparent flexible film, and then the transparent flexible substrate is mounted on a windshield, a rear window or a side window of the vehicle.
[0055] In one embodiment, a plurality of light-emitting units, a plurality of driving units and circuits are arranged on the substrate, and the image data is transmitted by the control unit. In other words, the number of components for transmitting image data, such as data lines and scanning lines, arranged on the substrate can be greatly reduced. Therefore, the light-transmitting area of the substrate is increased as much as possible, thereby increasing the aperture ratio of the substrate. In addition, since the number of circuits on the substrate is reduced, the radial distortion of the image provided by it, such as barrel distortion, can be improved.
[0056] Therefore, the electronic system of the present application provides a transparent substrate and a control unit, the transparent substrate can be used as a display panel, and the control unit provides image data by transmitting an optical signal to the substrate. Since the substrate of the present application transmits data signals through the optical signal of the control unit, the number of lines is small, thereby increasing the aperture ratio of the substrate. In addition, the light-emitting element of the present application can be a self-luminous element, which has better brightness. Therefore, the present application has better transparency and brightness than traditional transparent displays.
[0057] The above description is for illustrative purposes only and is not intended to be limiting. Any equivalent modifications or changes made thereto without departing from the spirit and scope of the present invention shall be included in the scope of the appended claims.
[0058] Explanation of symbols
[0059] 1:Substrate
[0060] 11: Light-emitting unit
[0061] 12: Drive unit
[0062] 121:Signal Receiver
[0063] 1211: First line
[0064] 1212: Second line
[0065] 1213: Third row
[0066] 13,13': Line layer
[0067] 2: Control unit
[0068] 21: Signal providing unit
[0069] 3: Reflector
[0070] 4. Fiber Optic
[0071] 5: Light Spot
[0072] OS: optical signal
[0073] S1, S2: Surface
[0074] X: First direction
[0075] Y: Second direction
Claims
1. An electronic system comprising: A substrate, comprising at least one light emitting unit and at least one driving unit corresponding to the light emitting unit, wherein the driving unit comprises a signal receiver; and A control unit, comprising a signal providing unit, wherein the signal providing unit is used to provide an optical signal to the signal receiver; in, The driving unit provides an electrical signal to the corresponding light emitting unit according to the optical signal received by the signal receiver from the signal providing unit of the control unit.
2. The electronic system according to claim 1, wherein the signal providing unit comprises a laser transmitter. 3 . The electronic system according to claim 1 , wherein the signal providing unit comprises a light source and a digital mirror element. 4 . The electronic system according to claim 1 , wherein the light spot projected by the signal providing unit covers at least a portion of the signal receptor of the driving unit. 5 . The electronic system according to claim 1 , wherein the substrate comprises a plurality of light emitting units and a plurality of driving units, and the plurality of driving units correspond to the plurality of light emitting units respectively. 6 . The electronic system according to claim 1 , wherein the driving unit comprises a circuit and a driving element, wherein the driving element and the signal receiver are electrically connected to the circuit, and wherein the driving element comprises an integrated circuit or a thin film driving element. 7 . The electronic system according to claim 1 , wherein the substrate comprises a circuit layer electrically connected to the light emitting unit and the driving unit, wherein the circuit layer comprises a plurality of power lines. The electronic system according to claim 1 , wherein the substrate is a transparent substrate. 9 . The electronic system according to claim 2 , wherein a resolution of the signal providing unit is not less than a resolution of the driving unit of the substrate.
10. The electronic system according to claim 6, wherein the driving element and the signal receiver are integrated into a module.