Boe Technology Group Co., Ltd.

Hefei Boe Optoelectronics Technology Co., Ltd.

Yimin Chen

Xianjie Shao

Zhangmeng Wang

Xiujuan Wang

Guangcai Yuan

Li Li

Qi Qi

Dejiang Zhao

Yan Chen

Lei Xiao

Tailiang Li

Junwei Yan

Haoran Gao

Lilei Zhang

Shaodong Sun

Wenyue Fu

Shuqi Liu

Bin Bu

Lina Jing

Hanbo Zheng

Pingkuan Gu

The present disclosure relates to a device and a system for testing flatness. The device for testing flatness includes a base, a testing platform, and a ranging sensor. The testing platform is assembled on the base. The testing platform includes a supporting structure. The supporting structure is disposed on the side of the testing platform away from the base and is used to support a to-be-tested board. The structure matches the structure of the to-be-tested board. The ranging sensor is disposed on the side of the testing platform away from the base. After the to-be-tested board is placed on the testing platform, the ranging sensor is used to test distances between a number N of to-be-tested positions on the to-be-tested board and the ranging sensor, to obtain N pieces of distance information, and the N pieces of distance information are used to determine the flatness of the to-be-tested board, where N is an integer greater than 2. According to the embodiments of the present disclosure, the flatness of the glass substrate can be tested to improve the manufacturing process to reduce the flatness of the glass substrate, and avoid the problem that the glass substrate is easily broken when entering the subsequent process equipment and the process equipment is down.

Device and system for testing flatness

A gate driving unit, a method for driving the same, a gate driving circuitry and a display module are provided. The gate driving unit includes: a shift register circuit configured to delay a phase of an input signal inputted by a signal input end under control of a first clock signal input end and a second clock signal input end to obtain a carry signal, and output the carry signal through a carry end; and a pulse width regulation circuit configured to regulate a pulse width of the carry signal under control of the enable end to obtain a gate drive signal, and output the gate drive signal through a gate drive signal output end.

Gate driving unit, method for driving the same, gate driving circuitry and display module

The present disclosure discloses a display substrate and a manufacturing thereof. The display substrate comprises a base substrate, a pixel defining layer formed on the base substrate, wherein the pixel defining layer is provided with an opening region comprising a bottom wall and at least one sidewall, wherein in the opening region, an edge of the bottom wall is provided with at least one hydrophilic inducing column, wherein at least one of the hydrophilic inducing column has a hydrophilic surface.

Display substrate and manufacturing method thereof

A touch display panel includes: a plurality of electrode blocks arranged in an array and spaced apart in an active area; an inner common electrode line surrounding the active area and disposed in a non-active area, a spacing area being provided between the active area and a portion of the inner common electrode line located away from a side where a driving circuit area is located; a plurality of dummy touch driving electrode lines arranged in parallel and running through the active area, the plurality of dummy touch driving electrode lines arranged in parallel being in one-to-one correspondence with and electrically connected to at least electrode blocks close to the spacing area; and switch circuits disposed in the spacing area that are in one-to-one correspondence with the electrode blocks electrically connected to the dummy touch driving electrode lines.

Touch display panel and driving method thereof

A memory-in-pixel circuit and a driving method thereof, a liquid crystal display panel and a wearable device are disclosed. The memory-in-pixel circuit includes a latch circuit, a switch circuit and a selection circuit, all transistors included in the latch circuit are first type transistors, and the latch circuit is configured to latch a data voltage and generate a first latch signal and a second latch signal; the switch circuit is configured to provide the data voltage to the latch circuit when the switch circuit is turned on; the selection circuit is configured to apply the first selection signal or the second selection signal to a pixel under control of the first latch signal and the second latch signal, and to continue to apply the first selection signal or the second selection signal to the pixel when the switch circuit is turned off to achieve automatic update of the pixel.

Memory-in-pixel circuit and driving method thereof, liquid crystal display panel and wearable device

Embodiments of the present disclosure provide a display panel, a method of manufacturing the display panel, a fingerprint identification device, and a method of identifying a fingerprint. The display panel includes first and second substrates. The first substrate is formed with switch transistors arranged in an array, and photosensitive elements arranged in an array and connected with the switch transistors. The second substrate is formed with conductive contact members, the contact members each have an end adjacent to the first substrate, and the end of each of the contact members is spaced from the first substrate so that when the second substrate is deformed by a force, the end of at least one of the contact members electrically contacts the first substrate so that at least one of the switch transistors in a position corresponding to the at least one of the contact members is turned on.

Display panel, method of manufacturing display panel, fingerprint identification device, and method of identifying fingerprint

A pixel circuit, a memory circuit, a display panel and a driving method. The pixel circuit includes a data writing circuit, a signal storage circuit and a display driving circuit. The data writing circuit is configured to write a data signal into the signal storage circuit according to a scan signal, the signal storage circuit is configured to store the data signal and control the display driving circuit to perform driving for display according to the data signal. The signal storage circuit comprises a first switch, a second switch, a third switch, a first node and a second node.

Pixel circuit, memory circuit, display panel and driving method

The disclosure discloses a data voltage storage circuit, a method for driving the same, a liquid crystal display, and a display device, and the data voltage storage circuit includes a voltage input subcircuit, a storage control subcircuit, and an output control subcircuit; and the storage control subcircuit stores a data signal input to the first node, so that the data signal can be stored for a long period of time. The three subcircuits above cooperate with each other so that a signal output end can be provided with a signal of a second reference voltage signal end or a common voltage signal end using the simple structure to thereby lower the difficulty of a fabrication process thereof, narrow a space to be occupied by the circuit, and improve a pixel aperture ratio.

Data voltage storage circuit, method for driving the same, liquid crystal display panel, and display device

A method and a system for controlling automatic quantitative fluid supply are disclosed, and the method and the system automatically control the quantitative fluid supply by timing a period of time t required for introducing gas () into a sealing tank () in such a way that the pressure in the sealing tank () reaches a default value and calculating a period of time T, required for continuously introducing the gas () into the sealing tank () to extrude a fixed volume (V) of the fluid, from the time t, in the process of automatic quantitative fluid supply, so as to automatically control the switching-on and -off of a gas passage (), overcome the impact of the reduction of the liquid level on the quantitative supply accuracy and guarantee the accuracy requirement of repeated quantitative supply.

Growing community of inventors

Beijing, China

Yimin Chen