Display panel and display device
A technology for display panels and pixel circuits, applied in static indicators, instruments, semiconductor devices, etc., can solve problems such as screen flickering, affecting the display effect of display devices, and poor display quality of black-state images, so as to improve contrast and display. quality, the effect of improving the display effect
Active Publication Date: 2021-08-10
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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Problems solved by technology
Existing display devices usually have problems such as poor black screen display quality and screen flickering, which seriously affect the display effect of the display device
Method used
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0028] As mentioned in the background, existing display devices generally have problems such as poor display quality of black images and screen flickering, which seriously affect the display effect of the display device. The inventors found that the reasons for the above problems are as follows: in the pixel circuits of existing display devices, thin-film transistors made of low temperature polysilicon (Low Temperature Poly-Silicon, LTPS) materials are generally used to drive light-emitting devices for light-emitti...
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The embodiment of the invention discloses a display panel and a display device. The display panel includes a substrate, an active layer and at least two metal layers. The active layer and the at least two metal layers are located on one side of the substrate, and the active layer and the at least two metal layers form a pixel circuit in the display panel; insulating layers are arranged between the active layer and the at least two metal layers and between the adjacent metal layers, and through holes for communicating the active layer with any two of the at least two metal layers are formed in the insulating layers; the pixel circuit comprises a first pixel circuit and a second pixel circuit, the number of the thin film transistors and the number of the capacitors in the first pixel circuit are equal to the number of the capacitors in the second pixel circuit, and the number of the via holes in the first pixel circuit is smaller than the number of the via holes in the second pixel circuit. According to the technical scheme, the number of the via holes in the display panel is reduced, so that the number of defect states, caused by etching of the via holes, in a related film layer of the thin film transistor is reduced, leakage current generated by the thin film transistor is reduced, and the display effect is improved.
Description
technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel and a display device. Background technique [0002] With the continuous development of display technology, people have higher and higher requirements for the performance of display devices. Existing display devices generally have problems such as poor display quality of black images and screen flickering, which seriously affect the display effect of the display device. Contents of the invention [0003] Embodiments of the present invention provide a display panel and a display device, so as to reduce the leakage current of the thin film transistor, thereby improving the display effect. [0004] In a first aspect, an embodiment of the present invention provides a display panel, including: [0005] base; [0006] An active layer and at least two metal layers are located on one side of the substrate, the active layer and the at least ...
Claims
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IPC IPC(8): H01L27/32G09G3/3233
CPCG09G3/3233H10K59/121H10K59/12H10K59/1213H10K59/131
Inventor 张九占张露胡思明
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT