Apple Inc.

Au Optronics Corporation

Chien-Ya Lee

Abbas Jamshidi Roudbari

Warren S Rieutort-Louis

Shin-Hung Yeh

Lun Tsai

Tsung-Ting Tsai

Ting-Kuo Chang

Shinya Ono

Shyuan Yang

Jae Won Choi

Chia-Hsiang Chen

Yuchi Che

Ching-Sang Chuang

Li-Wei Liu

Wei-Chu Hsu

Kyounghwan Kim

Wen-I Hsieh

Ya-Ling Chen

Jonathan H Beck

Man-Wen Shih

Ming E Tai

To minimize the width of a non-light-emitting border region around an opening in the active area, data lines may be stacked in the border region. Data line portions may be formed using three metal layers in three different planes within the border region. A metal layer that forms a positive power signal distribution path in the active area may serve as a data line portion in the border region. A metal layer may be added in the border region to serve as a data line portion in the border region. Data line signals may also be provided to pixels on both sides of an opening in the active area using supplemental data line paths. A supplemental data line path may be routed through the active area of the display to electrically connect data line segments on opposing sides of an opening within the display.

Displays with data lines that accommodate openings

An electronic device may have a display with an active area configured to display images and an inactive area that is free of pixels and that does not display images. Touch sensor sense lines may have portions located in the active area and portions located in the inactive area. The active and inactive areas may be characterized by respective reflectivity values. To match the reflectivities of the active and inactive areas and thereby avoid undesired visually distinguishable differences in the appearances of these areas, the touch sensor circuitry in the inactive areas may be configured to match the reflectivity values of the active and inactive areas. Sense line portions in the inactive area may have metal traces of enhanced reflectivity and/or uneven surface topology to enhance ambient light reflections through a circular polarizer that overlaps the active and inactive areas.

Electronic device displays with visibly matched borders

A display may have rows and columns of pixels. Gate lines may be used to supply gate signals to rows of the pixels. Data lines may be used to supply data signals to columns of the pixels. The data lines may include alternating even and odd data lines. Data lines may be organized in pairs each of which includes one of the odd data lines and an adjacent one of the even data lines. Demultiplexer circuitry may be configured dynamically during data loading and pixel sensing operations. During data loading, data from display driver circuitry may be supplied, alternately to odd pairs of the data lines and even pairs of the data lines. During sensing, the demultiplexer circuitry may couple a pair of the even data lines to sensing circuitry in the display driver circuitry and then may couple a pair of the odd data lines to the sensing circuitry.

High frame rate display

A pixel circuit includes a first capacitor, an input unit, a driving unit, a first compensation unit, an organic light-emitting diode, a switch unit, a second compensation unit and a reset unit. The input unit is electrically connected to the first capacitor and the second compensation unit. The second compensation unit is electrically connected to the organic light-emitting diode. The first compensation unit is electrically connected to the first capacitor, the driving unit, the switch unit and the reset unit. The driving unit is electrically connected to the switch unit and the reset unit. The switch unit is electrically connected to the organic light-emitting diode. The pixel circuit is configured to generate a corresponding driving current according to a turn-on voltage of the organic light-emitting diode. A driving method of a pixel circuit is also provided.

Pixel circuit and driving method thereof

A shift register includes a plurality of shift register circuits. Each of the shift register circuits includes a first switch, an input circuit, a pull-down circuit and a ripple reduction circuit. The first switch is used to output a scanning signal of the shift register circuit according to voltage levels of a node and a clock signal. The input circuit is used to pull up the voltage level of the node according to a scanning signal of a previous shift register circuit. The pull-down circuit is used to pull down the voltage levels of the node and the scanning signal of the shift register circuit according to a scanning signal of a following shift register circuit. The ripple reduction circuit is used to suppress ripples on the voltage levels of the node and the scanning signal caused by the coupling effect of the clock signal.

Shift register

An organic light emitting diode (OLED) display device and a method for driving an OLED display panel are provided. The method includes the following steps. In a reset period, a plurality of scanning signals received by a plurality of pixels of the OLED display panel is simultaneously enabled, and a plurality of data-voltages received by the pixels are set to a reference-voltage. In a threshold voltage cancelling period, a system-high-voltage received by the pixels and the scanning signals are simultaneously enabled, and the data-voltages are set to the reference-voltage. In a scanning period, the scanning signals are sequentially enabled, and the data-voltages are set according to the corresponded displaying data within a plurality of displaying data.

Organic light emitting diode display device for improving display quality and method for driving organic light emitting diode display panel

Growing community of inventors

Taipei, Taiwan

Chien-Ya Lee