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OLED display panel and preparation method of OLED display panel

A display panel and control line technology, which is applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc., can solve problems such as poor connection between auxiliary cathodes and cathodes, improve power supply voltage drop, improve connection yield, The effect of reducing impedance

Active Publication Date: 2019-12-31
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides an OLED display panel and a method for preparing the OLED display panel, so as to alleviate the technical problem of poor connection between the auxiliary cathode and the cathode in the existing OLED display panel

Method used

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  • OLED display panel and preparation method of OLED display panel
  • OLED display panel and preparation method of OLED display panel
  • OLED display panel and preparation method of OLED display panel

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Embodiment Construction

[0033] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0034] The invention provides an OLED display panel and a manufacturing method of the OLED display panel, so as to alleviate the technical problem of poor connection between the auxiliary cathode and the cathode in the existing OLED display panel.

[0035] like figure 2 As shown, it is a schematic diagram of the first structure of the OLED display panel provided by t...

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Abstract

The invention provides an OLED display panel and a preparation method of the OLED display panel. The OLED display panel comprises a pixel setting area and a signal line setting area in arrays. A number of pixels are arranged in the pixel setting area. The signal lines of a number of pixels in the pixel setting area are arranged in the signal line setting area. The signal lines comprise a data line, an induction line, a power supply line, a scanning line and a sensing control line. In the signal line setting area, an auxiliary cathode is arranged. The auxiliary cathode is electrically connectedwith a cathode to reduce the impedance of the cathode. The signal lines of multiple pixels are arranged in the signal line setting area, the width of the signal line setting area is increased. The cathode and the auxiliary cathode are directly electrically connected in the signal line setting area, thereby improving the connection yield of the cathode and the auxiliary cathode. The resistance ofthe cathode is reduced, and the phenomenon of voltage drop of a power supply is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel and a method for preparing the OLED display panel. Background technique [0002] In existing top-emitting OLED (Active Matrix Organic Light Emitting Diode, organic light-emitting diode) devices, due to the high resistivity of the cathode, it is usually necessary to make an auxiliary cathode on the backplane to reduce the cathode impedance and alleviate the IR-drop (power drop). [0003] like figure 1 As shown, the existing OLED display panel includes a substrate 100, a driving circuit layer 110, a pixel definition layer 130, a pixel electrode 140, a light emitting function layer 150, a cathode 160, and an auxiliary cathode 170. Since the cathode 160 and the auxiliary cathode 170 are formed with In order to connect the cathode 160 and the auxiliary cathode 170 of the light-emitting functional layer 150 , the light-emitting functional layer 150 is usually c...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/1315H10K59/1201H10K71/00H10K71/60H10K59/80522H10K59/131
Inventor 蔡振飞
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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