Display panel and display device
AssigneeXiamen Tianma Display Technology Co., Ltd.
InventorsYongkang LI, Qingjun LAI
Life of this patent
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Abstract
Display panel and display device are provided. The display panel includes a driving circuit includes N-level shift registers connected in cascade with N≥2. A shift register of the N-level shift registers includes a first control part and a second control part. The first control part is electrically connected to the second control part. The first control part is configured to control a first output signal, and the first output signal of an i-th level shift register serves as an input signal of a j-th level shift register, where 1≤i≤N, and 1≤j≤N. The second control part includes a control unit and a first voltage stabilizing unit.
Claims20
A display panel, comprising a driving circuit includes N-level shift registers connected in cascade with N≥2, wherein:
- a shift register of the N-level shift registers includes a first control part and a second control part, the first control part is electrically connected to the second control part;
- the first control part is configured to control a first output signal, and the first output signal of an i-th level shift register serves as an input signal of a j-th level shift register, 1≤i≤N, and 1≤j≤N;
- the second control part includes a control unit and a first voltage stabilizing unit;
- the control unit at least receives a frequency control signal, a first voltage signal input from a first voltage input terminal and a second voltage signal input from a second voltage input terminal, and controls a second output signal;
- a voltage corresponding to a valid pulse of the second output signal is same as a voltage of the first voltage signal, a voltage corresponding to an invalid pulse of the second output signal is same as a voltage of the second voltage signal;
- a first terminal of the first voltage stabilizing unit is electrically connected to the control unit, and a second terminal of the first voltage stabilizing unit receives a fixed voltage signal;
- and
- a voltage signal line connected to the second terminal of the first voltage stabilizing unit is different from a voltage signal line connected to the first voltage input terminal.
A display device comprising a display panel, comprising a driving circuit includes N-level shift registers connected in cascade with N≥2, wherein:
- a shift register of the N-level shift registers includes a first control part and a second control part, the first control part is electrically connected to the second control part;
- the first control part is configured to control a first output signal, and the first output signal of an i-th level shift register serves as an input signal of a j-th level shift register, 1≤i≤N, and 1≤j≤N;
- the second control part includes a control unit and a first voltage stabilizing unit;
- the control unit at least receives a frequency control signal, a first voltage signal input from a first voltage input terminal and a second voltage signal input from a second voltage input terminal, and controls a second output signal;
- a voltage corresponding to a valid pulse of the second output signal is same as a voltage of the first voltage signal, a voltage corresponding to an invalid pulses of the second output signal is same as a voltage of the second voltage signal;
- a first terminal of the first voltage stabilizing unit is electrically connected to the control unit, and a second terminal of the first voltage stabilizing unit receives a fixed voltage signal;
- and
- a voltage signal line connected to the second terminal of the first voltage stabilizing unit is different from a voltage signal line connected to the first voltage input terminal.
Dependencies are inferred from the claim text.