公开(公告)号：US09740046B2

公开(公告)日：2017-08-22

申请号：US14149636

申请日：2014-01-07

Applicant: NVIDIA Corporation

Inventor： David Wyatt

IPC: G09G5/10 ,  G02F1/1335 ,  G09G3/34 ,  G09G3/36

CPC classification number: G02F1/133603 ,  G09G3/342 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/0686 ,  G09G2330/021 ,  G09G2360/16

Abstract: A system and method are provided for displaying a lower power user interface on an liquid crystal display (LCD) panel using localized backlight control. The method includes the step of identifying a subset of light emitting elements included in a backlight for the LCD panel, where the backlight includes a plurality of light emitting elements. The subset of light emitting elements consumes less power when operated individually or in combination with other subsets of light emitting elements than the total backlight with all light emitting elements simultaneously active. The method also includes the steps of activating the subset of light emitting elements to at least partially illuminate the LCD panel while at least one light emitting element is not activated, adjusting an image for a user interface based on a compensation map corresponding to the subset of light emitting elements, and displaying the adjusted image on the LCD panel.

公开(公告)号：US09383851B2

公开(公告)日：2016-07-05

申请号：US14148599

申请日：2014-01-06

Applicant: NVIDIA Corporation

Inventor： David Wyatt

IPC: G06F3/041 ,  G09G5/393

CPC classification number: G06F3/0412 ,  G06F1/3262 ,  G06F3/0416 ,  G09G3/003 ,  G09G3/006 ,  G09G5/393 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2340/0435 ,  G09G2360/08 ,  G09G2360/18 ,  G09G2370/045 ,  G09G2370/10

Abstract: A solution is proposed for processing input in a lower power user interface of touch-sensitive display panels. According to an embodiment, a mobile computing device is placed in the low power mode. During this mode, the sensor controller produces a raw event/interrupts on a detected touch. Upon detecting a touch, the sensor controller also automatically increases the scan rate of the touch sensor, while the triggered event or interrupt proceeds to wake the system into a higher power state. Subsequent touch data received while the system is booting into the higher power state is buffered by the timing controller, or by a bridge chipset, while the processor(s) in the power up. When awake, the processor(s) collect the touch samples from the buffer, and processes the touch samples, generating updated displays where necessary.

Abstract translation: 提出了一种解决方案来处理触敏显示面板的低功耗用户界面中的输入。 根据实施例，移动计算设备被置于低功率模式。 在此模式下，传感器控制器会在检测到的触摸上产生原始事件/中断。 当检测到触摸时，传感器控制器还自动地增加触摸传感器的扫描速率，同时触发的事件或中断继续将系统唤醒到更高的功率状态。 当系统启动进入较高功率状态时接收到的后续触摸数据由定时控制器或桥接芯片组缓冲，同时处理器处于加电状态。 当清醒时，处理器从缓冲器收集触摸样本，并处理触摸样本，在必要时生成更新的显示。

公开(公告)号：US20150178932A1

公开(公告)日：2015-06-25

申请号：US14137633

申请日：2013-12-20

Applicant: NVIDIA Corporation

Inventor： David Wyatt ,  Ratin Kumar ,  Timothy Bornemisza

IPC: G06T7/00 ,  G06F17/30

CPC classification number: G06F17/30247 ,  G06T3/40 ,  H04N19/132 ,  H04N19/156 ,  H04N19/184 ,  H04N19/436

Abstract: Various embodiments relating to reducing memory bandwidth consumed by a continuous scan display screen are provided. In one embodiment, scoring criteria are applied to a reference image of a first image format having a first bit depth to generate an image conversion score. The scoring criteria are based on a histogram of one or more characteristics of the reference image. If the image conversion score is greater than a threshold value, then the reference image is converted to a modified image of a second image format having a second bit depth less than the first bit depth, and the modified image is scanned onto the continuous scan display screen. If the image conversion score is less than the threshold value, then the reference image is scanned onto the continuous scan display screen.

Abstract translation: 提供了与减少连续扫描显示屏幕消耗的存储器带宽有关的各种实施例。 在一个实施例中，评分标准被应用于具有第一位深度的第一图像格式的参考图像以产生图像转换分数。 评分标准基于参考图像的一个或多个特征的直方图。 如果图像转换分数大于阈值，则将参考图像转换为具有小于第一位深度的第二位深度的第二图像格式的修改图像，并将修改图像扫描到连续扫描显示 屏幕。 如果图像转换分数小于阈值，则将参考图像扫描到连续扫描显示屏幕上。

公开(公告)号：US20150130850A1

公开(公告)日：2015-05-14

申请号：US14149636

申请日：2014-01-07

Applicant: NVIDIA Corporation

Inventor： David Wyatt

IPC: G09G3/34 ,  G09G3/36 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G09G3/342 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/0686 ,  G09G2330/021 ,  G09G2360/16

Abstract: A system and method are provided for displaying a lower power user interface on an liquid crystal display (LCD) panel using localized backlight control. The method includes the step of identifying a subset of light emitting elements included in a backlight for the LCD panel, where the backlight includes a plurality of light emitting elements. The subset of light emitting elements consumes less power when operated individually or in combination with other subsets of light emitting elements than the total backlight with all light emitting elements simultaneously active. The method also includes the steps of activating the subset of light emitting elements to at least partially illuminate the LCD panel while at least one light emitting element is not activated, adjusting an image for a user interface based on a compensation map corresponding to the subset of light emitting elements, and displaying the adjusted image on the LCD panel.

Abstract translation: 提供了一种使用局部背光控制在液晶显示器（LCD）面板上显示低功率用户接口的系统和方法。 该方法包括识别包括在LCD面板的背光源中的发光元件的子集的步骤，其中背光包括多个发光元件。 当与所有发光元件同时活动的全部背光单独地或与其他发光元件子集合单独地操作时，发光元件的子集消耗较少的功率。 该方法还包括以下步骤：激活发光元件的子集以至少部分地照亮LCD面板，同时至少一个发光元件未被激活，基于与子集的子集对应的补偿图来调整用户界面的图像 发光元件，并在LCD面板上显示经调整的图像。

公开(公告)号：US20140184611A1

公开(公告)日：2014-07-03

申请号：US13732063

申请日：2012-12-31

Applicant: NVIDIA CORPORATION

Inventor： David Wyatt ,  David Stears

IPC: G09G3/00

CPC classification number: G09G3/36 ,  G09G2310/04 ,  G09G2320/103 ,  G09G2330/022 ,  G09G2360/127

Abstract: Embodiments of the present invention may include a graphics processor operable to generate video frames, wherein the graphics processor is operable to begin generating a partial update region of a video frame upon receiving a framelock signal. Further, a screen refresh controller may be communicatively coupled with the graphics processor, wherein the screen refresh controller is operable to receive partial update regions of video frames from the graphics processor and send framelock signals to the graphics processor. Additionally, a display device may be communicatively coupled with the screen refresh controller, wherein the display device is operable to receive and display video frames from the screen refresh controller.

Abstract translation: 本发明的实施例可以包括可操作以产生视频帧的图形处理器，其中所述图形处理器可操作以在接收到帧锁定信号时开始生成视频帧的部分更新区域。 此外，屏幕刷新控制器可以与图形处理器通信地耦合，其中屏幕刷新控制器可操作以从图形处理器接收视频帧的部分更新区域，并向图形处理器发送帧锁定信号。 此外，显示设备可以与屏幕刷新控制器通信地耦合，其中显示设备可操作以从屏幕刷新控制器接收和显示视频帧。

公开(公告)号：US09852497B2

公开(公告)日：2017-12-26

申请号：US13857061

申请日：2013-04-04

Applicant: NVIDIA Corporation

Inventor： David Wyatt ,  Arman Toorians

IPC: G06T5/00 ,  G09G3/34

CPC classification number: G06T5/008 ,  G06T2207/20012 ,  G09G3/342 ,  G09G2360/16

Abstract: An aspect of the present invention proposes a solution to allow low-cost flat panel displays without light guides to maintain a high quality image display via enhancement of pixel data to account for non uniform brightness. According to one embodiment, each pixel of a display is mapped to the brightness (intensity) of illumination that reaches the pixel. Regional pixel gains are calculated and applied on a per pixel basis to compensate for the non-uniform brightness across the screen. According to such an embodiment, even low cost flat panel displays experiencing non-uniform brightness can be used to render high quality images.

公开(公告)号：US09746954B2

公开(公告)日：2017-08-29

申请号：US14823907

申请日：2015-08-11

Applicant: NVIDIA Corporation

Inventor： David Wyatt ,  Arman Toorians

IPC: G09G3/36 ,  G06F3/041 ,  G09G5/18

CPC classification number: G06F3/0416 ,  G09G5/18

Abstract: A touch-screen input/output device including a touch sensor, a display, a display control module, a touch sensor control module and a synchronizer module. The touch sensor is overlaid on a display. The display control module is communicatively coupled to the display and converts video data into a serial bit stream video display signal include one or more blanking intervals. The touch sensor control module is communicatively coupled to the touch sensor and determines touch events and location of the touch event on the touch sensor during one or more touch sensor scan cycles. The synchronizer module is communicatively coupled between the display control module and the touch sensor control module, and interleaves the one or more touch sensor scan cycles with the one or more blanking intervals of the video display signal.

公开(公告)号：US09293119B2

公开(公告)日：2016-03-22

申请号：US14148604

申请日：2014-01-06

Applicant: NVIDIA Corporation

Inventor： David Wyatt

IPC: G09G5/393 ,  G06F3/041 ,  G09G3/20

CPC classification number: G09G5/393 ,  G06F1/3215 ,  G06F1/3218 ,  G06F1/3262 ,  G06F1/3265 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/2096 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2354/00 ,  G09G2360/08 ,  G09G2360/18 ,  Y02D10/153

Abstract: A solution is proposed to perform display updates in a lower power user interface. According to one embodiment, the display panel is placed in the lower possible refresh rate that can be supported. Rendered updates are presented to the displays at the fasted possible pixel rates the communication interface between the rendering component to the display panel can support, and a buffer on the receiving end of the display receives and stores updated frames as they are rendered and transmitted. Subsequent display updates (generated in response to subsequent sensor input, for example) may be created and transmitted as soon as the preceding display frames are buffered. In the meantime, as soon as the update frame is transmitted, the timing controller of the display panel is instructed to interrupt the current refresh period and to immediately rescan the frame.

Abstract translation: 提出了一种解决方案来在低功耗用户界面中执行显示更新。 根据一个实施例，显示面板被置于可被支持的较低可能的刷新率中。 渲染更新以可禁止的像素速率呈现给显示器，渲染组件到显示面板的通信接口可以支持，并且显示器的接收端上的缓冲器在渲染和发送时接收并存储更新的帧。 一旦上述显示帧被缓冲，可以创建和发送随后的显示更新（例如响应于后续的传感器输入而生成）。 同时，一旦发送更新帧，指示显示面板的定时控制器中断当前刷新周期并立即重新扫描帧。

公开(公告)号：US20140298051A1

公开(公告)日：2014-10-02

申请号：US13852076

申请日：2013-03-28

Applicant: NVIDIA CORPORATION

Inventor： David Wyatt ,  Daniel Nolan

IPC: G06F13/10 ,  G06F9/54

CPC classification number: G06F13/102

Abstract: A feature management system and method of managing access to API functionality. One embodiment of the feature management system includes: (1) a driver configured to carry out functions, including a restricted function, in response to calls thereto, (2) a memory configured to store a management action associated with the restricted function and (3) a feature manager operable to recognize the call to the restricted function and to retrieve the management action from the memory and direct the driver to carry out the management action in addition to the restricted function.

Abstract translation: 管理对API功能的访问的功能管理系统和方法。 特征管理系统的一个实施例包括：（1）被配置为响应于其呼叫而执行包括受限功能的功能的驱动程序，（2）被配置为存储与受限功能相关联的管理动作的存储器和（3 ）功能管理器，其可操作以识别对所述受限功能的呼叫并从所述存储器检索所述管理动作，并指示所述驱动程序除了所述受限功能之外执行所述管理动作。

公开(公告)号：US20140184583A1

公开(公告)日：2014-07-03

申请号：US13731700

申请日：2012-12-31

Applicant: NVIDIA CORPORATION

Inventor： David Wyatt

IPC: G09G5/00

CPC classification number: G09G3/3666 ,  G09G3/3614 ,  G09G2320/103 ,  G09G2360/08

Abstract: A method for refreshing a display. The method includes refreshing even and odd columns of a display panel at a first frame refresh rate where for each frame, even and odd columns are refreshed. Upon entering a display idle period, a low power display refresh is performed. The low power display refresh includes: refreshing the even columns of the display during even frames while circuitry driving odd columns are not used, and refreshing the odd columns of the display during odd frames while circuitry driving the even columns are not used. Refreshing the even columns and refreshing the odd columns are performed at a second frame refresh rate that is slower than the first frame refresh rate.

Abstract translation: 一种刷新显示的方法。 该方法包括以第一帧刷新速率刷新显示面板的偶数列和奇数列，其中对于每个帧，刷新偶数和奇数列。 在进入显示器空闲期间时，执行低功率显示刷新。 低功率显示刷新包括：在偶数帧期间刷新显示器的偶数列，而不使用驱动奇数列的电路，并且在不使用驱动偶数列的电路的同时刷新奇数帧中的奇数列。 刷新偶数列并刷新奇数列以比第一帧刷新率慢的第二帧刷新率执行。