Beijing BOE Optoelectronics Technology Co.

Beijing, China

Beijing BOE Optoelectronics Technology Co.

Beijing, China

Time filter

Source Type

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

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

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

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: 2016-01-15

A method and a device for determining a yellowish level of a screen caused by pressing are provided. The method includes: acquiring chromaticity coordinates of a plurality of test points of the screen during a pressing test; processing the acquired chromaticity coordinates, so as to acquire a chromatic aberration between the test point with a maximum value of X or a maximum value of Y in the chromaticity coordinates and the test point with a minimum value of X or a minimum value of Y in the chromaticity coordinates; and comparing the chromatic aberration with a predetermined standard chromatic aberration, so as to determine whether the screen is qualified after the pressing test.


Patent
BOE Technology Group and Beijing Boe Optoelectronics Technology Co. | Date: 2016-01-29

A display panel and its driving method and driving device are provided for selectively reducing display resolution of a display panel, thereby decreasing display power consumption. The display panel comprises: gate lines (11) and data lines (12) disposed across to each other; at least one switching unit (13) connected between different gate lines (11), configured to control whether at least two rows of gate lines (11) are conducted; and a driving control module (14) having first output terminals (141) connected one by one to control terminals of the at least one switching unit (13) and second output terminals (142) connected one by one to input terminals of the data lines (12); wherein the driving control module (14) outputs, via the first output terminals (141), a control signal for controlling whether a corresponding switching unit (13) is switched on, and decides, based on an on/off state of the switching unit (13), whether to output an image signal to a corresponding data line (12) via the second output terminals (142).


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-07-12

A protective device of mobile equipment is provided. The protective device of mobile equipment comprises: a bottom plate (1) and a protective cover plate (2) connected with and opposite to the bottom plate (1). The protective cover plate (2) is provided with a light collecting layer (3) and a photovoltaic layer (4). The light collecting layer (3) is configured to refract the incident light and guide it into the photovoltaic layer (4). The photovoltaic layer (4) is configured to convert energy of the incident light guided by the light collecting layer into electric energy. The light collecting layer (3) is used to guide the incident light to the photovoltaic layer (4), so that the utilization rate of the incident light is improved, and the capability of the protective device of mobile equipment with solar charging function supplying power to the mobile equipment and continuously charging the mobile equipment is enhanced.


Patent
BOE Technology Group and Beijing BOE Optoelectronics Technology Co. | Date: 2017-08-09

An organic light-emitting diode display unit, a driving method thereof and a display device are disclosed. At least part of pixel units (11) are pixel units (11) each with a stacked structure; each pixel unit (11) with the stacked structure includes two adjacent subpixel unit stacked groups (110); and each subpixel unit stacked group (110) includes at least two subpixel units (111) which have different emitting colors and are stacked and insulated from each other. During display of different image frames, each subpixel unit stacked group (110) in each pixel unit (11) with the stacked structure can display gray-scale effect of at least two colors based on applied signals. Compared with an approach that each subpixel unit can only display gray-scale effect of only one color for different image frames, the display effect can be improved.

Loading Beijing BOE Optoelectronics Technology Co. collaborators
Loading Beijing BOE Optoelectronics Technology Co. collaborators