# US 2020/0402452 A1 ยท Display device and display panel thereof, oled array substrate > Agents: this data is available as JSON from the patentgrep API and MCP server โ€” see https://patentgrep.com/llms.txt - Number: US 2020/0402452 A1 - Document ID: US20200402452A1 - Status: Published application - Kind: A1 - Application number: 17/007,520 - Filed: 2020-08-31 - Published: 2020-12-24 - Earliest claimed: 2018-12-28 - Assignees: KunShan Go-Visionox Opto-Electronics Co., Ltd - Applicants: KunShan Go-Visionox Opto-Electronics Co., Ltd. - Inventors: Fengzhang HU - Web page: https://patentgrep.com/patent/US20200402452A1 ## CPC - G09G 3/3216: using a passive matrix - G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED] - G09G 3/3225: using an active matrix - G09G 3/3275: Details of drivers for data electrodes - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2310/0291: Details of output amplifiers or buffers arranged for use in a driving circuit - G09G 2320/0686: with two or more screen areas displaying information with different brightness or colours - G09G 2330/00: Aspects of power supply; Aspects of display protection and defect management - G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas - H10K 59/173: comprising banks or shadow masks - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device, a display panel thereof, and an OLED array substrate. The OLED array substrate includes a display area, and the display area includes a non-transparent display area and a transparent display area. The non-transparent display area is provided with first OLED sub-pixels arranged in an array, and the transparent display area is provided with second OLED sub-pixels in one row and several columns. When the columns of second OLED sub-pixels are driven, the transparent display area performs a display function; when the columns of second OLED sub-pixels are not driven, the transparent display area performs a light transmitting function. ## Claims ### Claim 1 An OLED array substrate, comprising: a display area, a non-transparent display area in which first OLED sub-pixels are arranged in an array; a transparent display area in which one row and several columns of second OLED sub-pixels are disposed, wherein when the columns of second OLED sub-pixels are driven, the transparent display area performs a display function; when the columns of second OLED sub-pixels are not driven, the transparent display area performs a light transmitting function; a driving mode for the first OLED sub-pixels is active; the first OLED sub-pixels are driven by a part of data signal channels of a display driver integrated chip; a driving mode for the second OLED sub-pixels is passive; the second OLED sub-pixels are driven by a remaining part of the data signal channels of the display driver integrated chip; and data from all the data signal channels correspond to one frame of screen display in the display area. ### Claim 2 (depends on 1) The OLED array substrate according to claim 1, wherein in a direction perpendicular to a plane where the OLED array substrate is located, each of the first OLED sub-pixels includes a lower electrode, a first OLED light emitting structure disposed over the lower electrode, and an upper electrode disposed over the first OLED light emitting structure; and in a direction perpendicular to the plane where the OLED array substrate is located, each of the second OLED sub-pixels comprises: a first electrode extending along a column direction, a second OLED light emitting structure disposed over the first electrode and extending along the column direction, and a second electrode disposed over the second OLED light emitting structure. ### Claim 3 (depends on 2) The OLED array substrate according to claim 2, wherein the lower electrode is a block electrode; and the first electrode is a strip electrode. ### Claim 4 (depends on 2) The OLED array substrate according to claim 2, wherein all the columns of the second OLED sub-pixels in the transparent display area are sub-pixels of a same color, or all columns of the second OLED sub-pixels in a section of the transparent display area are sub-pixels of the same color; first electrodes in the columns of the second OLED sub-pixels of the same color correspond to a same data signal channel or different data signal channels of the display driver integrated chip. ### Claim 5 (depends on 4) The OLED array substrate according to claim 4, wherein, when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to a same data signal channel of the display driver integrated chip, an operational amplifier circuit is provided between the first electrode in each column of the second OLED sub-pixels of the same color and a corresponding data signal channel of the display driver integrated chip, the operational amplifier circuit is configured to amplify a data signal of the display driver integrated chip and input the amplified data signal to the first electrode in a corresponding column of the second OLED sub-pixels of the same color; when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to different data signal channels of the display driver integrated chip, respectively, an operational amplifier circuit is provided between the first electrode in each column of the second OLED sub-pixels of the same color and a corresponding data signal channel of the display driver integrated chip, the operational amplifier circuit is configured to amplify a data signal of the display driver integrated chip and input the amplified data signal to the first electrode in a corresponding column of the second OLED sub-pixels of the same color. ### Claim 6 (depends on 4) The OLED array substrate according to claim 4, wherein, when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to a same data signal channel of the display driver integrated chip, each of the data signal channels of the display driver integrated chip is connected to an open drain circuit, an output of the open drain circuit is connected to the first electrodes of the second OLED sub-pixels of a same color, and a source electrode of the open drain circuit is connected to a power supply voltage; when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to different data signal channels of the display driver integrated chip, respectively, one data signal channel is connected to an open drain circuit, an output of the open drain circuit is connected to a first electrode of a corresponding second OLED sub-pixel of the same color, and a source electrode of the open drain circuit is connected to a power supply voltage. ### Claim 7 (depends on 2) The OLED array substrate according to claim 2, wherein the second OLED sub-pixels comprise sub-pixels of different colors, and a plurality of adjacent columns of the second OLED sub-pixels of different colors form one pixel unit; the first electrodes in the columns of the second OLED sub-pixels of a same color correspond to a same data signal channel or different data signal channels of the display driver integrated chip. ### Claim 8 (depends on 7) The OLED array substrate according to claim 7, wherein, when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to a same data signal channel of the display driver integrated chip, an operational amplifier circuit is provided between the first electrodes in the columns of the second OLED sub-pixels of a same color and a corresponding data signal channel of the display driver integrated chip, the operational amplifier circuit is configured to amplify a data signal of the display driver integrated chip and input the amplified data signal to the first electrodes of the corresponding second OLED sub-pixels of the same color; when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to different data signal channels of the display driver integrated chip, respectively, an operational amplifier circuit is provided between the first electrode in each column of the second OLED sub-pixels of the same color and a corresponding data signal channel of the display driver integrated chip, and the operational amplifier circuit is configured to amplify a data signal of the display driver integrated chip and input the amplified data signal to the first electrode in a corresponding column of the second OLED sub-pixels of the same color. ### Claim 9 (depends on 7) The OLED array substrate according to claim 7, wherein, when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to a same data signal channel of the display driver integrated chip, each of the data signal channels of the display driver integrated chip is connected to an open drain circuit, an output of the open drain circuit is connected to the first electrodes of the corresponding second OLED sub-pixels of a same color, and a source electrode of the open drain circuit is connected to a power supply voltage; when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to different data signal channels of the display driver integrated chip, respectively, and one data signal channel is connected to an open drain circuit, an output of the open drain circuit is connected to a first electrode of a corresponding second OLED sub-pixel of the same color, and a source electrode of the open drain circuit is connected to a power supply voltage. ### Claim 10 (depends on 2) The OLED array substrate according to claim 2, wherein the second OLED sub-pixels in a section of the transparent display area include sub-pixels of different colors; and a plurality of adjacent second OLED sub-pixels of different colors form one pixel unit; and the first electrodes in the columns of the second OLED sub-pixels of a same color correspond to a same data signal channel or different data signal channels of the display driver integrated chip. ### Claim 11 (depends on 10) The OLED array substrate according to claim 10, wherein, when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to a same data signal channel of the display driver integrated chip, an operational amplifier circuit is provided between the first electrodes in the columns of the second OLED sub-pixels of a same color and a corresponding data signal channel of the display driver integrated chip, the operational amplifier circuit is configured to amplify a data signal of the display driver integrated chip and input the amplified data signal to the first electrodes of the corresponding second OLED sub-pixels of the same color; when the first electrodes in the columns of the second OLED sub-pixels of the same color correspond to different data signal channels of the display driver integrated chip, respectively, an operational amplifier circuit is provided between the first electrode in each column of the second OLED sub-pixels of the same color and a corresponding data signal channel of the display driver integrated chip, and the operational amplifier circuit is configured to amplify a data signal of the display driver integrated chip and input the amplified data signal to the first electrode in a corresponding column of the second OLED sub-pixels of the same color. ### Claim 12 (depends on 10) The OLED array substrate according to claim 10, wherein each of the data signal channels of the display driver integrated chip is connected to an open drain circuit, and an output of the open drain circuit is connected to the first electrodes of the corresponding second OLED sub-pixels of a same color, and a source electrode of the open drain circuit is connected to a power supply voltage. ### Claim 13 (depends on 2) The OLED array substrate according to claim 2, wherein the second electrodes of the second OLED sub-pixels form a planar electrode, and/or the upper electrodes and the first OLED sub-pixels and the second electrodes of the second OLED sub-pixels are connected as a planar electrode. ### Claim 14 (depends on 2) The OLED array substrate according to claim 2, wherein a projection of the first electrode in each column of the second OLED sub-pixels on the plane where the OLED array substrate is located is composed of one or more graphic units; shapes of the graphic units comprising a circle, an ellipse, a dumbbell, an โ€œ8โ€ shape, or a rectangle. ### Claim 15 (depends on 2) The OLED array substrate according to claim 2, wherein the first electrodes and the second OLED light emitting structures of the second OLED sub-pixels extend along a column direction in a middle section of the transparent display area, or extend from a top of the transparent display area to a middle or bottom of the transparent display area along the column direction, or extend from the middle of the transparent display area to the bottom of the transparent display area along the column direction. ### Claim 16 (depends on 15) The OLED array substrate according to claim 15, wherein adjacent ones of the second OLED sub-pixels form a pattern, and the pattern comprises a battery-shaped pattern and/or a pattern representing a signal strength. ### Claim 17 (depends on 2) The OLED array substrate according to claim 2, wherein a plurality of the second OLED light emitting structures are separated by pixel definition layers. ### Claim 18 (depends on 2) The OLED array substrate according to claim 2, wherein a ratio of a length of the first electrode in a column direction to a width in a row direction is larger than 20:1. ### Claim 19 (depends on 1) A display panel comprising the OLED array substrate according to claim 1. ### Claim 20 (depends on 19) A display device comprising the display panel according to claim 19.