CN-122002823-A - Capacitor and display panel

CN122002823ACN 122002823 ACN122002823 ACN 122002823ACN-122002823-A

Abstract

The application provides a capacitor and a display panel. The conductive part and/or the polar plate are/is of a temperature-induced reversible deformation structure and are used for controlling the connection state between the conductive part and the polar plate of the two adjacent capacitance units in response to temperature change and adjusting the connection mode of the two adjacent capacitance units, so that the capacitance value of the capacitor can be dynamically changed along with the temperature, and the problem that the same capacitance at different temperatures can cause the difference of charging degrees is solved.

Inventors

LI YAO
WU CHUAN
CAO ZHONGLIN
LI JIEWEI

Assignees

惠科股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260408

Claims (10)

1. A capacitor is characterized by comprising a plurality of capacitor units arranged at intervals along a first direction, wherein each capacitor unit comprises two polar plates arranged along a second direction; the conductive part is arranged at the interval between two adjacent capacitor units and extends along the second direction; The conductive part and/or the polar plate are/is of a temperature-induced reversible deformation structure and are used for controlling the connection state between the conductive part and the polar plate of the adjacent two capacitance units in response to temperature change, so that the adjacent two capacitance units are selectively arranged in a serial connection mode or a parallel connection mode or an independent mode.
2. The capacitor of claim 1, wherein two adjacent capacitor units of the conductive part form a capacitor group, in the capacitor group, two electrode plates of one capacitor unit are respectively a first electrode plate and a second electrode plate which are sequentially arranged along the second direction, and two electrode plates of the other capacitor unit are respectively a third electrode plate and a fourth electrode plate which are sequentially arranged along the second direction; In the capacitor group, a connection state between the first polar plate and the third polar plate is the same as a connection state between the second polar plate and the fourth polar plate, and is opposite to a connection state between the first polar plate and the fourth polar plate.
3. The capacitor according to claim 2, wherein when the ambient temperature is lower than a threshold value, in the capacitor group, the temperature-induced reversible deformation structure is in an initial state, one end of the conductive portion in the second direction is disposed in contact with the first plate, and the other end of the conductive portion in the second direction is disposed in contact with the fourth plate, so that two capacitor units are disposed in series; When the ambient temperature is not lower than a threshold value, the temperature-induced reversible deformation structure in the capacitor bank deforms to disconnect the conductive part from the first polar plate and/or disconnect the conductive part from the fourth polar plate, so that the two capacitor units are arranged in parallel.
4. A capacitor according to claim 3, wherein in the capacitor bank, the first plate and/or the fourth plate are of a temperature-induced reversible deformation structure, and the deformation direction is parallel to the first direction; when the ambient temperature is not lower than a threshold value, in the capacitor bank, the temperature-induced reversible deformation structure contracts, so that the temperature-induced reversible deformation structure and the conductive part are arranged at intervals, and the first polar plate and the fourth polar plate are disconnected.
5. A capacitor according to claim 3, wherein in the capacitor bank, the conductive portion is a temperature-induced reversible deformation structure, and the deformation direction is parallel to the second direction; When the ambient temperature is not lower than a threshold value, in the capacitor bank, the conductive part contracts, so that the conductive part is arranged at a distance from the first polar plate, and/or the conductive part is arranged at a distance from the fourth polar plate, so that the first polar plate is disconnected from the fourth polar plate.
6. The capacitor of claim 5, wherein the conductive portion is: A composite electrode formed by semi-liquid metal and a thermal shrinkage film, or, A composite fiber composed of thermoplastic polyurethane, silver flakes and liquid metal microspheres, or, A composite electrode formed by thermoplastic polyurethane and silver nano wires, or, And a composite electrode formed by the epoxy-based shape memory polymer and graphene.
7. The capacitor according to claim 3 or 5, further comprising a control unit connected between the first plate and the third plate for controlling a connection state between the first plate and the third plate in response to a change in an ambient temperature, and/or, The control unit is connected between the second polar plate and the fourth polar plate and is used for responding to the change of the ambient temperature to control the connection state between the second polar plate and the fourth polar plate.
8. The capacitor of claim 7, wherein the control unit is a semiconductor switch or the control unit is a temperature switch.
9. The capacitor of claim 5, wherein in the capacitor bank, the first plate and/or the third plate are of a temperature-induced reversible deformation structure, the second plate and/or the fourth plate are of a temperature-induced reversible deformation structure, and a deformation direction is parallel to the first direction; When the ambient temperature is not lower than a threshold value, the polar plates with the temperature-induced reversible deformation structure in the capacitor group expand so as to enable the first polar plate to be electrically connected with the third polar plate and enable the second polar plate to be electrically connected with the fourth polar plate.
10. A display panel comprising a transistor and the capacitor of any one of claims 1 to 9; the transistor is connected to the capacitor.

Description

Capacitor and display panel Technical Field The application relates to the technical field of display, in particular to a capacitor and a display panel. Background In the prior art, the mobility of a Thin Film Transistor (TFT) is improved along with the temperature rise, the charging efficiency is improved, but the charging time margin (margin) of a fixed capacitor in a high refresh rate scene is smaller, and the same capacitor at different temperatures can cause the difference of pixel charging degrees, so that the display brightness fluctuation is caused. Disclosure of Invention The application mainly solves the technical problems of providing a capacitor and a display panel and solving the problem that the same capacitor at different temperatures can cause the difference of pixel charging degrees in the prior art. In order to solve the technical problem, the first technical scheme provided by the application is that the capacitor comprises a plurality of capacitor units which are arranged at intervals along a first direction, wherein each capacitor unit comprises two polar plates which are arranged along a second direction; the conductive part is arranged at the interval between two adjacent capacitor units and extends along the second direction; the conductive part and/or the polar plate are/is of a temperature-induced reversible deformation structure and are used for controlling the connection state between the conductive part and the polar plate of the two adjacent capacitance units in response to temperature change, so that the two adjacent capacitance units are selectively arranged in a serial connection mode, a parallel connection mode or an independent mode. In some embodiments, the conductive portion and two adjacent capacitor units form a capacitor group, in the capacitor group, two electrode plates of one capacitor unit are respectively a first electrode plate and a second electrode plate which are sequentially arranged along a second direction, and two electrode plates of the other capacitor unit are respectively a third electrode plate and a fourth electrode plate which are sequentially arranged along the second direction; in the capacitor group, the connection state between the first polar plate and the third polar plate is the same as the connection state between the second polar plate and the fourth polar plate, and is opposite to the connection state between the first polar plate and the fourth polar plate. In some embodiments, when the ambient temperature is lower than the threshold value, in the capacitor bank, the temperature-induced reversible deformation structure is in an initial state, one end of the conductive part along the second direction is arranged in contact with the first polar plate, and the other end of the conductive part along the second direction is arranged in contact with the fourth polar plate, so that the two capacitor units are arranged in series; When the ambient temperature is not lower than the threshold value, the temperature-induced reversible deformation structure in the capacitor bank deforms to disconnect the conductive part from the first polar plate and/or disconnect the conductive part from the fourth polar plate, so that the two capacitor units are arranged in parallel. In some embodiments, in the capacitor bank, the first electrode plate and/or the fourth electrode plate are/is a temperature-induced reversible deformation structure, and the deformation direction is parallel to the first direction; When the ambient temperature is not lower than the threshold value, the temperature-induced reversible deformation structure in the capacitor bank contracts, so that the temperature-induced reversible deformation structure and the conductive part are arranged at intervals, and the first polar plate and the fourth polar plate are disconnected. In some embodiments, in the capacitor set, the conductive portion is a temperature-induced reversible deformation structure, and the deformation direction is parallel to the second direction; When the ambient temperature is not lower than the threshold value, the conductive part is contracted in the capacitor group, so that the conductive part is arranged at intervals with the first polar plate and/or the conductive part is arranged at intervals with the fourth polar plate, and the first polar plate is disconnected with the fourth polar plate. In some embodiments, the conductive portion is: A composite electrode formed by semi-liquid metal and a thermal shrinkage film, or, A composite fiber composed of thermoplastic polyurethane, silver flakes and liquid metal microspheres, or, A composite electrode formed by thermoplastic polyurethane and silver nano wires, or, And a composite electrode formed by the epoxy-based shape memory polymer and graphene. In some embodiments, the capacitor further comprises a control unit connected between the first plate and the third plate for controlling a connection state between the first