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US-12626641-B2 - Display panel

US12626641B2US 12626641 B2US12626641 B2US 12626641B2US-12626641-B2

Abstract

Disclosed is a display panel including a substrate, a light-emitting unit, a pixel circuit, a scan driver, and an emission driver. The light-emitting unit is arranged on the substrate. The pixel circuit is arranged on the substrate. The pixel circuit includes a data input transistor, a driving transistor, and an emission transistor. The data input transistor is configured to receive a data signal according to a scan signal. The driving transistor is configured to provide a driving current based on the data signal. The emission transistor is configured to transfer the driving current to the light-emitting unit according to an emission signal. The scan driver is arranged on the substrate and is configured to output the scan signal. The emission driver is arranged on the substrate and is configured to output the emission signal. The pixel circuit is arranged between the scan driver and the emission driver.

Inventors

  • Chun-Hsien Lin

Assignees

  • Innolux Corporation

Dates

Publication Date
20260512
Application Date
20240328

Claims (9)

  1. 1 . A display panel, comprising: a substrate comprising an active region, and the active region comprises a gate driver arrangement region and a non-gate driver arrangement region arranged at intervals; a light-emitting unit arranged in the gate driver arrangement region and the non-gate driver arrangement region; a pixel circuit arranged in the gate driver arrangement region and the non-gate driver arrangement region and comprising: a data input transistor configured to receive a data signal according to a scan signal; a driving transistor configured to provide a driving current based on the data signal; an emission transistor configured to transfer the driving current to the light-emitting unit according to an emission signal; and a sensing transistor configured to sense the driving current according to a sensing signal; a scan driver arranged in the gate driver arrangement region and configured to output the scan signal; an emission driver arranged in the gate driver arrangement region and configured to output the emission signal; a sensing driver arranged on the substrate and configured to output the sensing signal; and an opaque pattern arranged in the non-gate driver arrangement region, wherein the pixel circuit is arranged between the scan driver and the emission driver, and the emission driver is arranged in a central region of the substrate and the sensing driver is arranged in a side region of the substrate, wherein the emission transistor is electrically coupled between the sensing transistor and the light-emitting unit, wherein an area of the opaque pattern arranged in the central region of the substrate is substantially equal to an area of the scan driver or an area of the emission driver, wherein a relative arrangement between the opaque pattern and the pixel circuit in the non-gate driver arrangement region is substantially the same as a relative arrangement between the scan driver and the pixel circuit in the gate driver arrangement region, and a transmittance of the non-gate driver arrangement region is substantially equal to a transmittance of the gate driver arrangement region.
  2. 2 . The display panel according to claim 1 , wherein the scan driver is arranged in the central region of the substrate.
  3. 3 . The display panel according to claim 1 , wherein a signal transfer path of at least one of the scan driver and the emission driver is transferring from the central region to both sides of the substrate.
  4. 4 . The display panel according to claim 1 , wherein the sensing driver is arranged in the gate driver arrangement region.
  5. 5 . The display panel according to claim 1 , wherein the substrate has a first side and a second side opposite to each other, and the scan driver and the emission driver are away from the first side and the second side.
  6. 6 . The display panel according to claim 5 , wherein the sensing driver is adjacent to the first side and the second side.
  7. 7 . The display panel according to claim 1 , wherein the area of the opaque pattern is substantially equal to an area of the sensing driver.
  8. 8 . The display panel according to claim 1 , wherein the side region comprises a first side region and a second side region, the first side region and the second side region are respectively arranged on opposite sides of the central region.
  9. 9 . The display panel according to claim 8 , wherein the sensing driver is arranged in the first side region or the second side region.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a continuation of and claims the priority benefit of U.S. application Ser. No. 17/838,273, filed on Jun. 13, 2022, which claims the priority benefit of Chinese application Ser. No. 20/211,0805686.1, filed on Jul. 16, 2021. The entirety of each of the above-mentioned patent applications is hereby incorporated by reference herein and made a part of this specification. BACKGROUND Technical Field The disclosure relates to a display panel. Particularly, the disclosure relates to a display panel whose overall transmittance can be relatively consistent. Description of Related Art Electronic devices or tiled electronic devices have been widely applied in mobile phones, televisions, monitors, tablet computers, automotive displays, wearable devices, and desktop computers. With the vigorous development of electronic devices, quality requirements of the electronic devices are increasingly high. SUMMARY The disclosure provides a display panel whose overall transmittance can be relatively consistent. According to an embodiment of the disclosure, a display panel includes a substrate, a light-emitting unit, a pixel circuit, a scan driver, and an emission driver. The light-emitting unit is arranged on the substrate. The pixel circuit is arranged on the substrate. The pixel circuit includes a data input transistor, a driving transistor, and an emission transistor. The data input transistor is configured to receive a data signal according to a scan signal. The driving transistor is configured to provide a driving current based on the data signal. The emission transistor is configured to transfer the driving current to the light-emitting unit according to an emission signal. The scan driver is arranged on the substrate and is configured to output the scan signal. The emission driver is arranged on the substrate and is configured to output the emission signal. The pixel circuit is arranged between the scan driver and the emission driver. To make the aforementioned more comprehensible, several embodiments accompanied with drawings are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure. FIG. 1A is a schematic top view of a display panel according to some embodiments of the disclosure. FIG. 1B is an enlarged view of region A1 of FIG. 1A. FIG. 1C is a schematic circuit view of a pixel circuit of FIG. 1B. FIG. 1D is an enlarged view of region A2 of FIG. 1A. FIG. 1E is a schematic perspective bottom view of the display panel of FIG. 1A. FIG. 2 is a schematic partial top view of a display panel according to some embodiments of the disclosure. FIG. 3A is a schematic partial top view of a display panel according to some embodiments of the disclosure. FIG. 3B is a schematic cross-sectional view of the display panel of FIG. 3A along section line I-I′. FIG. 4 is a schematic partial cross-sectional view of a display panel according to some embodiments of the disclosure. FIG. 5A is a schematic top view of a tiled display device according to some embodiments of the disclosure. FIG. 5B is a schematic cross-sectional view of the tiled display device of FIG. 5A along section line II-II′. DESCRIPTION OF THIS EMBODIMENTS The disclosure may be understood with reference to the following detailed description together with the accompanying drawings. It should be noted that, for ease of understanding by readers and conciseness of the drawings, a plurality of drawings in the disclosure merely show a part of an electronic device, and specific elements in the drawings are not drawn to scale. In addition, the number and size of the elements in the drawings only serve for exemplifying instead of limiting the scope of the disclosure. In the following description and claims, terms such as “include”, “comprise”, and “have” are open-ended terms, and thus should be interpreted as “including, but not limited to”. It should be understood that when an element or film layer is referred to as being arranged “on”, or “connected to” another element or film layer, the element or film layer may be directly on or connected to the another element or film layer, or intervening elements or film layers may also be present in between (non-direct circumstances). In contrast, when an element or film layer is referred to as being “directly on” or “directly connected to” another element or film layer, no intervening elements or film layers are present in between. Although terms such as “first”, “second”, “third”, etc. may be used to describe diverse constituent elements, such constituent elements are not limited by the terms. The terms are used only to discriminate a constituent element from other cons