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OLED display substrate, manufacturing method thereof, and display device

A technology for displaying substrates and manufacturing methods, applied to static indicators, instruments, electrical components, etc., to achieve the effects of simplifying complexity, reducing production costs, and reducing the number of patterning processes

Active Publication Date: 2019-01-25
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, a compensation method for OLED display products is an optical compensation method. A photosensitive sensor is arranged between the light-emitting layer and the substrate of the bottom-emitting OLED display product. The optical signal is fed back to the driving circuit of the OLED display product to achieve corresponding optical compensation. However, in the structure of this OLED display product, a special process is required to manufacture the photosensitive sensor, which increases the complexity of the manufacturing process of the OLED display product.

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  • OLED display substrate, manufacturing method thereof, and display device
  • OLED display substrate, manufacturing method thereof, and display device
  • OLED display substrate, manufacturing method thereof, and display device

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Embodiment Construction

[0075] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0076] At present, a compensation method for OLED display products is an optical compensation method, such as figure 1 As shown, a photodiode A is arranged between the OLED light-emitting unit B of the bottom-emitting OLED display product and the substrate substrate. The photodiode A can sense the intensity of light emitted by the OLED light-emitting unit B and feed back the detected light signal to the OLED The driving circuit of the display product realizes corresponding optical compensation, but in the structure of this OLED display product, the photodiode A needs to be manufactured through a special process, which increases the complexity of the manufacturing process of the OLED display product.

[0077] Embodiments of the present ...

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Abstract

The invention provides an OLED display substrate and a manufacturing method thereof, and a display device, belonging to the technical field of display. OLED display substrate, includes an OLED light emitting unit on a substrate and a driving thin film transistor for driving the OLED light emitting unit to emit light, The OLED display substrate further comprises: A photosensitive thin film transistor located between the substrate and the OLED light emitting unit, the photosensitive thin film transistor capable of detecting light emitted by the OLED light emitting unit and generating an electrical signal, and at least a part of the film layer of the photosensitive thin film transistor and the film layer of the driving thin film transistor are provided with the same material. The technical proposal of the invention can simplify the complexity of the manufacturing process of the OLED display substrate and reduce the production cost of the OLED display substrate.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display substrate, a manufacturing method thereof, and a display device. Background technique [0002] OLED (Organic Light Emitting Diode) display products have become increasingly mature after a long period of development, and gradually appear in terminal products. The light-emitting principle of OLED display devices is: electrons and holes are injected from the cathode and anode respectively. When the electrons and holes meet up and down in a certain molecule in the organic light-emitting layer, due to Coulomb interaction, the two will be bound together to form Excitons, recombination occurs after excitons diffuse and drift to a suitable position in the organic light-emitting layer. Since the excitons themselves are in an excited state, they release energy when recombined, and the part released in the form of radiation is luminescence. However, due to the limitation ...

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/60H10K59/13H10K59/1213H10K59/1201H10K71/00H10K71/20H10K71/60G09G3/3208G09G2360/145G09G2330/028G09G2320/0233G09G3/3225G09G2300/0809H10K59/126H10K59/1216
Inventor 狄沐昕刘英伟梁志伟李海旭曹占锋
Owner BOE TECH GRP CO LTD