Beijing BOE Optoelectronics Technology Co.

Beijing, China

Beijing BOE Optoelectronics Technology Co.

Beijing, China
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Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-05-17

A pixel circuit comprising two sub pixel circuits (PI, P2), each of which comprises: five switching units (T1, T2, T3, T4, T5), a driving unit (DT), an energy storage unit (C) and an electroluminescent unit (L). A first switching unit (T1), a second switching unit (T2) and a fifth switching unit (T5) of a first sub pixel circuit (P1) and a first switching unit (T1), a second switching unit (T2) and a fifth switching unit (T5) of a second sub pixel circuit (P2) share a scanning signal line. In the pixel circuit, the operating current flowing through the electroluminescent unit is not affected by the threshold voltage of the corresponding driving transistor, which solves the problem of non-uniformity of display luminance because of the threshold voltage drift of the driving transistor. At the same time, driving of two pixels is completed by using one compensation circuit, and the two adjacent pixels share a plurality of signal lines, which can reduce a number of signal lines used for the pixel circuit in the display apparatus, reduce a cost of an integrated circuit, decrease pixel spacing and achieve a higher pixel density.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-05-17

The present disclosure provides a built-in touch display device and a method for driving the same. Each of a plurality of shielding layers may be arranged between each of the plurality of data lines and each of a plurality of touch driving electrodes. A touch driving signal may be transmitted to the corresponding touch driving electrode when the plurality of first gate line groups corresponding to the common electrodes is in an ON state, and the transmitting of the touch driving signal to the corresponding touch driving electrode may be stopped when the plurality of second gate line groups corresponding to the touch driving electrodes is in an ON state.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-05-17

Provided are a pixel structure and driving method thereof, and a display apparatus. The pixel structure comprises a plurality of pixel units and compensation units corresponding to the pixel units. Each of the pixel units comprises two adjacent pixel circuits which are a first pixel circuit and a second pixel circuit. The first pixel circuit comprises a first driving transistor (DTFT1) and a first display device (OLED1), and the second pixel circuit comprises a second driving transistor (DTFT2) and a second display device (OLED2), wherein the first pixel circuit and the second pixel circuit share the compensation unit and are controlled by a same data line (Data). The compensation unit is configured to adjust a gate voltage of the first driving transistor (DTFT1) in the first pixel circuit to eliminate the influence of the threshold voltage of the first driving transistor (DTFT1) on the driving current of the first display device (OLED1), and to adjust a gate voltage of the second driving transistor (DTFT2) in the second pixel circuit to eliminate the influence of the threshold voltage of the second driving transistor (DTFT2) on the driving current of the second display device (OLED2). The pixel structure can reduce the pixel size and obtain higher resolution.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-05-17

There are provided a pixel circuit and its driving method and a display apparatus. The pixel circuit comprises: a first switching unit (T1), a second switching unit (T2), a third switching unit (T3), a fourth switching unit (T4), a fifth switching unit (T5), a driving unit (DT), an energy storage unit (C) and an electroluminescent unit (L). The first switching unit (T1) is configured to provide operating voltage to the driving unit (DT) under the control of the first scanning signal line (Em); the second switching unit (T2) is configured to reset voltage of a control terminal of the driving unit (DT) under the control of the second scanning signal line (Scan[2]); the third switching unit (T3) is configured to write data voltage on the data voltage line (Vdata) into the first terminal (a) of the energy storage unit (C) under a control of the third scanning signal line; the fourth switching unit (T4) is configured to connect the control terminal and output terminal of the driving unit (DT) under the control of the third scanning signal line (Scan[3]) and enable voltage of the output terminal of the driving unit (DT) to charge the second terminal (b) of the energy storage unit (C); and the fifth switching unit (T5) is configured to conduct driving current generated by the driving unit (DT) to the electroluminescent unit (L) under the control of the fourth scanning signal line (Scan[1]). The pixel circuit is capable of solving the problem of non-uniformity of display luminance because of the threshold voltage drift of the driving transistor.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-05-17

An array substrate and its manufacturing method, and a touch display device are disclosed. A display area of the array substrate includes a plurality of thin film transistor (11), first transparent electrodes (12), second transparent electrodes (13) and a transparent insulation layer (16) that contacts the second transparent electrodes (13); the transparent insulation layer (16) is a conductor when a voltage applied thereon is larger than a predetermined voltage, and is an insulator when the voltage applied therein is less than the predetermined voltage. The second transparent electrodes (13) include first sub-electrodes (131) arranged into a plurality of rows in a first direction and insulated from each other, and second sub-electrodes (132) arranged into a plurality of rows in a second direction and insulated from each other, the first direction is intersected with the second direction. The problems such as noise, visual artifacts, insensitive to touch, or the like caused by unbalance of charges can be avoided.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-05-17

A touch substrate and a display device, comprising a plurality of first electrodes (10) for touch control, a plurality of first switching units (1) and a control unit (100) for controlling the first switching units (1); any two adjacent the first electrodes (10) are connected through one of the first switching units (1) and each of the first electrodes (10) is connected with the control unit (100). The touch substrate can avoid the problem that charges tend to accumulate on touch driving electrodes and/or touch sensing electrodes during a touch process and cannot be released well in a display phase.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-09-13

In an in-cell touch panel and a display device, the common electrode layer (120) in the array substrate (100) is partitioned into a plurality of sub-electrodes arranged in an array, spaced sub-electrodes in each column of sub-electrodes serve as touch driving sub-electrodes (a) constituting a touch driving electrode and sub-electrodes other than them serve as common sub-electrodes (b). During line-by-line scanning of gate lines covered by a row of sub-electrodes, the row of sub-electrodes are applied with common electrode signals, touch driving sub-electrodes in other rows of sub-electrodes are applied with touch driving signals, and common sub-electrodes in other rows of sub-electrodes are applied with common electrode signals. The in-cell touch panel can avoid various display and touch problems resulted from deficiency of time caused by time-division driving.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-09-13

An in-cell touch panel and a display device, a touch driving method are disclosed. A common electrode layer (120) in an array substrate (100) is partitioned into a plurality of sub-electrodes arranged in an array. Sub-electrodes that are alternately disposed in a respective row of sub-electrodes serve as touch driving sub-electrodes (a) that form a touch driving electrode (121). Sub-electrodes other than the touch driving sub-electrodes serve as common sub-electrodes (b). Touch sensing electrodes (210) with projections within areas where corresponding common sub-electrodes (b) are located are provided on an opposed substrate (200). Upon a line-by-line scanning of gate lines (110) covered by respective rows of sub-electrodes, sub-electrodes in a currently-scanned row are applied with a common electrode signal, touch driving electrodes (121) in rows of sub-electrodes other than the currently-scanned row of sub-electrodes are applied with touch driving signals.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-09-20

A touch display module and an electronic display product are disclosed. The touch display module includes an in-cell touch display panel (4) and a first FPC (9), which includes a touch FPC section (6) and a key FPC section (7); the touch FPC section (6) is connected to a touch signal line of the in-cell touch display panel (4), configured for achieving a touch function of the in-cell touch display panel; the key FPC section (7) is configured for achieving a touch function of a touch key in a non-display region. With the touch display module and the electronic display product, a touch FPC and a key FPC that are arranged in a discrete manner in the past can be integrated, reducing material and labor costs and enhancing the production efficiency.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-09-13

An array substrate, a display device and a method for manufacturing an array substrate are provided. The array substrate includes: two first conductive connection strips arranged opposite to each other; and multiple electrode strips arranged between the two first conductive connection strips. The multiple electrode strips are electrically connected to each other via the two first conductive connection strips. Slits are formed between adjacent electrode strips. The multiple electrode strips include at least one electrode strip, of which one end is electrically connected to one of the two first conductive connection strips and another end is spaced at a distance from the other of the two first conductive connection strips to form an opening. The opening is communicated with two adjacent slits.

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