Search

US-12626649-B2 - Interference reduction electronic device

US12626649B2US 12626649 B2US12626649 B2US 12626649B2US-12626649-B2

Abstract

An electronic device is provided. The electronic device includes a substrate, multiple electronic units, a data driver, and multiple data line pairs. The substrate has an active area. The electronic units are arranged in the active area in an array. Each of the electronic units includes a microcontroller and multiple electronic components. The data driver provides a differential signal. The data line pairs transmit the differential signals to the microcontrollers. The microcontroller generates multiple driving signals according to the differential signals, and inputs the driving signals to the electronic components respectively.

Inventors

  • Wei-Yu Su
  • Jui-Feng Ko
  • Geng-Fu CHANG

Assignees

  • Innolux Corporation

Dates

Publication Date
20260512
Application Date
20241120
Priority Date
20231218

Claims (19)

  1. 1 . An electronic device, comprising: a substrate having an active area; a plurality of electronic units arranged in the active area in an array, wherein each of the electronic units comprises a microcontroller and a plurality of electronic components, and the microcontroller is electrically connected to the electronic components; a data driver disposed on the substrate, wherein the data driver provides a differential signal; and a plurality of data line pairs coupled to the data driver and the microcontrollers to transmit the differential signal to the microcontrollers; wherein the microcontroller generates a plurality of driving signals according to the differential signal, and inputs the driving signals to the electronic components respectively, wherein the electronic units are arranged in an array of a plurality of columns and a plurality of rows, wherein each of the microcontrollers comprises a shift register, and wherein a plurality of first column microcontrollers of the electronic units located in the first column respectively receive high level signals, and when the differential signal received by the first column microcontrollers comprises a start protocol, the first column microcontrollers respectively output the driving signals to the electronic components, and output a scan signal to a shift register in the next column.
  2. 2 . The electronic device according to claim 1 , wherein the electronic device further comprises a gate driver and a plurality of scan lines, the scan lines are electrically connected to the gate driver and the microcontrollers, and the gate driver transmits a plurality of gate signals to the microcontrollers through the scan lines.
  3. 3 . The electronic device according to claim 1 , wherein each of the microcontrollers further comprises a decoder, a scan signal generator, a latch, and a transducer, the decoder receives the differential signal and generates a start signal, and the scan signal generator receives the start signal and outputs the scan signal to the latch and the transducer, so that the transducer outputs the driving signals to the electronic components according to a signal from the latch.
  4. 4 . The electronic device according to claim 3 , wherein the scan signal is output to the shift register, so that the shift register outputs another scan signal to the shift register in the next column.
  5. 5 . The electronic device according to claim 3 , wherein the latch latches a signal from the decoder in response to the scan signal.
  6. 6 . The electronic device according to claim 3 , wherein the transducer of each of the first column microcontrollers outputs the driving signals in response to the scan signal output by the scan signal generator of each of the first column microcontrollers.
  7. 7 . The electronic device according to claim 3 , wherein the decoder of each of the first column microcontrollers receives the differential signal in response to the scan signal output by the scan signal generator of each of the first column microcontrollers.
  8. 8 . The electronic device according to claim 7 , wherein the latch of each of the first column microcontrollers latches a signal from the decoder of each of the first column microcontrollers in response to the scan signal output by the scan signal generator of each of the first column microcontrollers.
  9. 9 . The electronic device according to claim 3 , wherein the transducer of each of the second column microcontrollers outputs the driving signals in response to a scan signal output by the shift register of each of the first column microcontrollers.
  10. 10 . The electronic device according to claim 3 , wherein the scan signal generator of each of the second column microcontrollers is not operating.
  11. 11 . The electronic device according to claim 3 , wherein the decoder of each of the second column microcontrollers receives the differential signal in response to a scan signal output by the shift register of each of the first column microcontrollers.
  12. 12 . The electronic device according to claim 11 , wherein the latch of each of the second column microcontrollers latches a signal from the decoder of each of the second column microcontrollers in response to a scan signal output by the shift register of each of the first column microcontrollers.
  13. 13 . The electronic device according to claim 1 , wherein the data driver is disposed outside the active area.
  14. 14 . The electronic device according to claim 1 , wherein the electronic units are respectively pixel units.
  15. 15 . The electronic device according to claim 1 , wherein the electronic units are respectively modulation units.
  16. 16 . The electronic device according to claim 1 , wherein the differential signal is a clock embedded differential signal.
  17. 17 . The electronic device according to claim 1 , wherein the differential signal is a scrambled differential signal.
  18. 18 . The electronic device according to claim 1 , wherein each of the driving signals is a current signal.
  19. 19 . The electronic device according to claim 1 , wherein each of the driving signals is a pulse-width modulation signal.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the priority benefit of China application serial no. 202311742913.6, filed on Dec. 18, 2023. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification. BACKGROUND Technical Field The disclosure relates to an electronic device, and more particularly, to an electronic device that may reduce signal interference and electromagnetic interference. Description of Related Art Based on the increasing demand for resolution, the number of signal transmission traces on a substrate of an electronic device will increase and become denser, which causes a signal on the signal transmission trace susceptible to signal interference and electromagnetic interference from the signal on the adjacent signal transmission trace and distortion. Once the signal is distorted, the electronic device will malfunction. As a result, how to reduce the signal interference and electromagnetic interference of the electronic devices is one of the research focuses for those skilled in the art. SUMMARY This disclosure provides an electronic device that may reduce signal interference and electromagnetic interference. According to the embodiment of the disclosure, an electronic device includes a substrate, multiple electronic units, a data driver, and multiple data line pairs. The substrate has an active area. The electronic units are arranged in the active area in an array. Each of the electronic units includes a microcontroller and multiple electronic components. The microcontroller is electrically connected to the electronic components. The data driver is disposed on the substrate. The data driver provides a differential signal. The data line pairs are coupled to the data driver and the microcontrollers. The data line pairs transmit the differential signal to the microcontrollers. The microcontroller generates multiple driving signals according to the differential signal, and inputs the driving signals to the electronic components respectively. Based on the above, the data driver provides the differential signal. The microcontroller generates the driving signals according to the differential signal, and inputs the driving signals to the electronic components respectively. The differential signal may reduce the signal interference. The microcontroller may generate the driving signals according to the differential signal. Therefore, the electronic device may reduce the signal interference and electromagnetic interference and operate correctly. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of an electronic device according to the first embodiment of the disclosure. FIG. 2 is a signal timing diagram according to the first embodiment of the disclosure. FIG. 3 is a schematic diagram of an electronic device according to the second embodiment of the disclosure. FIG. 4 is a signal timing diagram according to the second embodiment of the disclosure. FIG. 5 is a signal timing diagram according to the second embodiment of the disclosure. FIG. 6 is a schematic diagram of a microcontroller according to an embodiment of the disclosure. DETAILED DESCRIPTION OF DISCLOSED EMBODIMENTS The disclosure may be understood with reference to the following detailed description with the drawings. Note that for clarity of description and ease of understanding, the drawings of the disclosure show a part of an electronic device, and certain elements in the drawings may not be drawn to scale. In addition, the number and size of each device shown in the drawings simply serve for exemplifying instead of limiting the scope of the disclosure. Certain terminologies are used throughout the description and the appended claims to refer to specific elements. As to be understood by those skilled in the art, electronic device manufacturers may refer to an element by different names. Herein, it is not intended to distinguish between elements that have different names instead of different functions. In the following description and claims, terminologies such as “include”, “comprise”, and “have” are used in an open-ended manner, and thus should be interpreted as “including, but not limited to”. Therefore, the terminologies “include”, “comprise”, and/or “have” used in the description of the disclosure denote the presence of corresponding features, regions, steps, operations, and/or elements but are not limited to the presence of one or more corresponding features, regions, steps, operations, and/or elements. It should be understood that when one element is referred to as being “coupled to”, “connected to”, or “conducted to” another element, the one element may be directly connected to the another element with electrical connection established, or intervening elements may also be present in between these elements for electrical interconnection (indirect electrical connection). Comparatively, when one element is referred to as being “dire