A pixel circuit and a display panel

A pixel circuit and voltage technology, applied in static indicators, instruments, etc., can solve the problems of high consistency requirements for threshold voltage and mobility, high production cost, and difficult device process, etc., and achieve the requirements of reducing consistency. Reduced long-term stability and reduced process difficulty

Pending Publication Date: 2019-05-10
CHENGDU VISTAR OPTEOLECTRONICS CO LTD
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Problems solved by technology

However, the control of luminous brightness by analog driving is easily affected by the threshold voltage and mobility of the device. Therefore, the prior art has high requir

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  • A pixel circuit and a display panel
  • A pixel circuit and a display panel
  • A pixel circuit and a display panel

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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] figure 1 It is a schematic diagram of a circuit structure of a pixel circuit provided by an embodiment of the present invention. see figure 1 , the pixel circuit includes: a light emitting unit 100 , a driving unit 200 , a switch unit 300 , a latch unit 400 , a first resistive element 500 and a second resistive element 600 . The drive unit 200 includes a drive control terminal 201, a drive signal input terminal 202 and a drive signal output terminal 2...

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Abstract

The embodiment of the invention discloses a pixel circuit and a display panel. The pixel circuit comprises a latch unit, a first resistive element and a second resistive element. The first end of thefirst resistive element and the first end of the second resistive element are both electrically connected with the third power input end of the pixel circuit, the second end of the first resistive element is electrically connected with the input end of the latch unit, and the second end of the second resistive element is electrically connected with the output end of the latch unit. The latch unitis used for latching a signal input by the input end and outputting a digital driving signal at the output end; And the driving unit is used for driving the light-emitting unit to emit light or not toemit light according to the digital driving signal of the driving control end. Compared with the prior art, the embodiment of the invention reduces the requirement on the consistency of the thresholdvoltage and the mobility of the device of the driving unit, thereby reducing the process difficulty and the production cost of device manufacturing; Devices in the pixel circuit can adopt the same type of transistors, so that the number of times of masking is reduced, and the process complexity is reduced.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a pixel circuit and a display panel. Background technique [0002] With the continuous development of display technology, various display technologies such as CRT display technology, LCD display technology, OLED display technology and Micro-LED display technology have emerged. Among them, Micro-LED display has the advantages of long life, high stability, high brightness, faster response time, high resolution and low power consumption, so it has great application potential in wearable display, VR, vehicle, military products and other fields . [0003] In the prior art, the driving method of Micro-LED display is mainly based on the analog driving method of AMOLED. Specifically, the pixel circuit is integrated on the TFT backplane, and the current of Micro-LED is controlled according to the data signal on the data line, so as to control Luminous brightness of Mic...

Claims

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Application Information

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IPC IPC(8): G09G3/32
Inventor 周吉韦冬杨小龙邢汝博
Owner CHENGDU VISTAR OPTEOLECTRONICS CO LTD
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