EP2492903A9 - Method and system to quickly fade the luminance of an OLED display - Google Patents
Method and system to quickly fade the luminance of an OLED display Download PDFInfo
- Publication number
- EP2492903A9 EP2492903A9 EP11156106A EP11156106A EP2492903A9 EP 2492903 A9 EP2492903 A9 EP 2492903A9 EP 11156106 A EP11156106 A EP 11156106A EP 11156106 A EP11156106 A EP 11156106A EP 2492903 A9 EP2492903 A9 EP 2492903A9
- Authority
- EP
- European Patent Office
- Prior art keywords
- pixel
- input
- scaling
- input signal
- oled display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000015654 memory Effects 0.000 claims description 19
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 8
- 238000005562 fading Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000013507 mapping Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000008672 reprogramming Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0606—Manual adjustment
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/14—Solving problems related to the presentation of information to be displayed
- G09G2340/145—Solving problems related to the presentation of information to be displayed related to small screens
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
Definitions
- the method of example 15 can optionally include determining the pixel output voltage from the pixel input signal including using a series of look-up tables, each look-up table including gamma values that map one of the first, second, and third components addressing red, green, or blue portion of the pixel input signal to pixel-level output voltage.
- the gamma block 220 outputs a mapped pixel-level voltage to a scaler circuit 240 (also referred to as a scaling circuit in some examples).
- the scaler circuit 240 can multiply the pixel-level voltage by the luminance scaling input 210 to reduce (fade) the pixel-level output voltage sent to the output 250.
- the luminance scaling input 210 can be interpreted by the scaler circuit 240 as a value between zero (0) and one (1). A value of one (1) will result in a full brightness (maximum luminance) output from the addressed pixel within the OLED display.
- FIG. 5 is a flowchart illustrating an example method 500 of varying the luminance of an OLED display.
- an image source such as image source 305
- the image source can provide a 24-bit value that contains three (3) 8-bit values representing red, blue, and green portions of each pixel.
- the method 500 provides an example of scaling individual color component output voltages (e.g., in an RGB color space, output of scaled red, green, and blue output voltages).
- the method 500 includes operations for receiving a luminance scaling signal (505), receiving a first pixel input signal (510), separating color components of the first pixel input signal (515), determining a red pixel component voltage (520), determining a green pixel component voltage (540), determining a blue pixel component voltage (560), scaling the red pixel component voltage (525), scaling the green pixel component voltage (545), scaling the blue pixel component voltage (565), outputting the scaled red pixel component voltage (530), outputting the scaled green pixel component voltage (550), and outputting the scaled blue pixel component voltage (570).
- Example method 500 can be described with respect to example system 300 of Figure 3 .
- the storage may include random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) and electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, or any other medium capable of storing machine-readable instructions and data that may be present in a mobile electronic device.
- Mobile device 700 may include input 716, output 718, and a communication connection device 720.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
- Mobile devices are incorporating advanced display technology, such as liquid crystal light-emitting diode displays and organic light-emitting diode (OLED) based displays. As the capabilities of the display technology advances so too does the consumer's expectations in terms of functionality and esthetics associated with the display. Consumers demand high quality displays that are capable of fast response and vibrant display. One such capability commonly expected of a mobile device display is the ability to rapidly and smoothly fade or brighten the display in response to user input, programming, or external lighting conditions.
-
FIG. 1 is a block diagram illustrating a portion of an OLED driver circuit, according to an example embodiment. -
FIG. 2 is a block diagram of a section of an OLED driver IC, according to an example embodiment. -
FIG. 3 is a block diagram illustrating a system for rapidly fading the luminance of an OLED display, according to an example embodiment. -
FIG. 4 is a flowchart illustrating an example method for varying the illumination output of an OLED display according to a luminance scaling signal , according to an example embodiment. -
FIG. 5 is a flowchart illustrating an example method of varying the luminance of an OLED display, according to an example embodiment. -
FIG. 6 is a flowchart illustrating an example method of varying the luminance of an OLED display based on receiving a triggering event, according to an example embodiment. -
FIG. 7 is a block diagram depicting a mobile device, according to an example embodiment. - The present inventors have recognized, among other things, a need for a mechanism to rapidly and smoothly fade (vary) the luminance of an OLED display. The present systems and methods address this need by enabling an OLED display driver to rapidly and smoothly fade the luminance of an OLED display using a single input signal.
- Example 1 includes an OLED display driver circuit comprising a first input, a second input, and a scaling circuit. The first input is structured to receive a scaling factor. The second input is structured to receive an image input signal. The image input signal includes a digital representation of a desired output for a pixel within an OLED display. The scaling circuit is structured to multiply a pixel-level output voltage corresponding to the image input signal by the scaling factor.
- In example 2, the OLED display driver circuit of
claim 1 can optionally include the first input structured to receive a signal that can be interpreted as a value between 1 and 0. - In example 3, the OLED display driver circuit of one or any combination of examples 1-2 can optionally include the first input structured to receive a pulse-width modulated signal representing a value between 1 and 0.
- In example 4, the OLED display driver circuit of one or any combination of examples 1-3 can optionally include the second input structured to receive a signal representing a gray-scale pixel value.
- In example 5, the OLED display driver circuit of one or any combination of examples 1-4 can optionally include a register coupled to the second input and containing a look-up table, the look-up table configured to map the digital representation of a desired output for the pixel to a pixel-level output voltage.
- In example 6, the OLED display driver circuit of example 5 can optionally include the second input structured to receive an image input signal representing a color pixel value, the image input signal including a first component representing red, a second component representing green, and a third component representing blue.
- In example 7, the OLED display driver circuit of example 6 can optionally include the register including a look-up table associated with each of the first, second, and third components of the image input signal representing the color pixel value.
- In example 8, the OLED display driver circuit of one or any combination of examples 5-7 can optionally include the register structured to map:
- an 8-bit value representing a red portion of the digital representation of the desired output for the first pixel to a first pixel-level output voltage;
- an 8-bit value representing a green portion of the digital representation of the desired output for the first pixel to a second pixel-level output voltage; and
- an 8-bit value representing a blue portion of the digital representation of the desired output for the first pixel to a third pixel-level output voltage.
- In example 9, the OLED display driver circuit of example 8 can optionally include the scaling circuit structured to scale the first, second, and third pixel-level output voltages using the scaling factor.
- Example 10 includes a method comprising receiving a luminance scaling signal, receiving a pixel input signal, determining a pixel output voltage, scaling the pixel output voltage, and outputting the scaled pixel output voltage. The pixel input signal includes a digital representation of a desired output for a pixel within a display device at a particular moment in time. The pixel output voltage is determined from the pixel input signal. The pixel output voltage is scaled using the luminance scaling signal to produce a scaled pixel output voltage.
- In example 11, the method of example 10 can optionally include determining the pixel output voltage from the pixel input signal including using a look-up table, the look-up table including gamma values that map digital pixel input signals to pixel-level output voltages.
- In example 12, the method of one or any combination of examples 10-11 can optionally include receiving the luminance scaling signal including receiving a signal that can be interpreted as a value between 0 and 1.
- In example 13, the method of one or any combination of examples 10-12 can optionally include receiving the luminance scaling signal including receiving a pulse-width modulated signal representing a value between 0 and 1.
- In example 14, the method of one or any combination of examples 10-13 can optionally include receiving the pixel input signal including receiving a signal representing a gray-scale pixel value.
- In example 15, the method of one or any combination of examples 10-14 can optionally include receiving the pixel input signal including receiving an image input signal representing a color pixel value, the image input signal including a first component addressing a red portion of a pixel, a second component addressing a green portion of the pixel, and a third component addressing a blue portion of the pixel.
- In example 16, the method of example 15 can optionally include determining the pixel output voltage from the pixel input signal including using a series of look-up tables, each look-up table including gamma values that map one of the first, second, and third components addressing red, green, or blue portion of the pixel input signal to pixel-level output voltage.
- In example 17, the method of one or any combination of examples 15-16 can optionally include determining the pixel output voltage including determining a first pixel output voltage using the first component addressing the red portion of the pixel, a second pixel output voltage using the second component addressing the green portion of the pixel, and a third pixel output voltage using the third component addressing the blue portion of the pixel.
- In example 18, the method of example 17 can optionally include scaling the first, second, and third output voltages using the luminance scaling signal.
- Example 19 includes an apparatus comprising a processor, an OLED display, and an OLED display driver circuit. The processor is coupled to a memory circuit and the OLED display includes a plurality of individually addressable pixels. The OLED display driver circuit includes a first input, a second input, and a scaler. The first input is structured to receive a scaling factor from the processor. The second input is structured to receive an image input signal from the processor. The image input signal can include image data to drive the plurality of individually addressable pixels. The scaler is coupled to the first input and the second input. The scaler is also structured to multiply pixel-level output voltages associated with the plurality of individually addressable pixel in the image input signal by the scaling factor.
- In example 20, the apparatus of example 19 can optionally include a register coupled between the second input and the scaler, the register including a look-up table and an output input, the look-up table configured to map data representing each of the plurality of individual addressable pixels within the image input signal to the pixel-level output voltages.
- In example 21, the apparatus of one or any combination of examples 19-20 can optionally include the OLED display driver circuit structured to receive, at the first input, a scaling factor that can be converted into a scaling value between 0 and 1.
- In example 22, the apparatus of one or any combination of examples 19-21 can optionally include the OLED display driver circuit structured to receive at the first input a pulse-width modulated signal representing a value between 0 and 1.
- In example 23, the apparatus of one or any combination of examples 19-22 can optionally include the OLED display driver circuit sttructured to receive, at the second input, an image input signal including a value associated with each of the plurality of individually addressable pixels of the OLED display.
- This overview is intended to provide an overview of subject matter of the present patent application. It is not intended to provide an exclusive or exhaustive explanation of the invention. The detailed description is included to provide further information about the present patent application.
- In the following description, numerous specific details are set forth in order to provide a thorough understanding of example embodiments. It is to be understood, however, that the various embodiments may be practiced without these specific details. For example, logical, electrical and structural changes may be made without departing from the spirit and scope of the present subject matter. The following detailed description is, therefore, not to be taken in a limiting sense.
- Methods and systems to quickly fade the luminance of an organic light-emitting diode (OLED) display panel are described. Embodiments described herein are directed to mobile device OLED display driver circuits that provide for efficient variable control over output brightness (luminance) through a single input. However, the concepts discussed herein are applicable to any OLED display (e.g., computer monitor, television). Mobile devices that utilize an OLED display can include cell phones, personal digital assistants (PDAs), smartphones, and tablet-style computers, among others. In an example, control over OLED luminance can be accomplished through the use of a scaling register associated with the gamma values programmed to control per pixel output within the OLED display. Gamma values refer to gamma correction used to code and decode luminance values in graphic display systems (e.g., video or still image electronic displays, such as a computer monitor or mobile device screen).
- A mobile device can use a variety of display technologies, such as a liquid crystal display (LCD). Some mobile devices use an LCD-type display that includes a backlight or an active array of transistors (e.g., an active thin-film transistor matrix, or the like), or both, to control each pixel in the display. Backlit LCD displays can provide for fast response times and vibrant displays desired by today's mobile device consumer. Backlit LCD displays allow for rapid variations in display luminance simply by varying the output of the backlights. However, LCDs including a backlight or an active transistor matrix, or both, can have high power demands, thus shortening battery life of the mobile device.
- OLED display technology is rapidly gaining ground versus LCDs for use in mobile devices due to the potential for improved power efficiency, improved color reproduction, and potential for thinner displays. Additionally, OLED displays can achieve faster response rates, achieve higher contrast levels, and produce higher saturated color reproduction. Unlike traditional LCD technology that requires a backlight to illuminate the display, OLED pixels are self-emissive (i.e. produce their own light). An OLED is an LED whose emissive electroluminescent layer can be composed of a thin-film of organic compounds capable of producing light when an electrical current is passed through it. OLEDs are capable of greater contrast ratios, thinner packaging, and deeper black levels, when compared to traditional LCD displays. However, fading or controlling the brightness of an OLED display can be more complicated than with LCD displays. As mentioned above, LCD displays are typically backlit; thus, varying the output level is a matter of varying the backlight.
- Within a traditional LCD display, varying the output brightness can be accomplished by a backlight driver integrated circuit (IC). Typical driver ICs can use a pulse-width modulated (PWM) signal to vary the power delivered to the LEDs and thus vary the output brightness. Because OLEDs are self-emissive and depend upon programmed gamma values to map pixel input values to output voltages (e.g., to maintain color balance), current OLED driver ICs cannot effectively utilize a similar PWM signal to directly control brightness. Currently available driver ICs for OLEDs require reprogramming of the gamma values (e.g., reprogramming a look-up table mapping input values to output voltages) to change the brightness (luminance) of the OLEDs in a controlled manner. Reprogramming of the gamma values used for mapping digital input values to output voltages can require additional command traffic over a control interface, additional storage of pre-programmed gamma value mappings, or both.
-
FIG. 1 is a block diagram illustrating a portion of an OLED driver circuit, according to an example embodiment. In an example, acircuit 100 can include apixel input 110, asplitter 120,gamma adjustment circuits level voltage outputs pixel input 110 can be a 24-bit value containing information to address an RGB (red, green, and blue) color space pixel. In another example, thepixel input 110 can be an 8-bit value containing information to address a grey-scale (0-254) pixel. In yet another example, thepixel input 110 can be a 32-bit (or greater) value containing information to address a CMYK (cyan, magenta, yellow, and key black) color space pixel. - In the example illustrated by
FIG. 1 , thesplitter 120 can receive a 24-bit RGB color space pixel and divide thepixel input 110 into three individual 8-bit color values (e.g., 8-bitred value 122, 8-bitgreen value 124, and 8-bit blue value 126). In this example, thesplitter 120 can pass the individual color components to associated gamma adjustment circuits 130. The gamma adjustment circuits 130 can map the individual color components into analog pixel-level voltage outputs 140. In some examples, the gamma adjustment circuits 130 can use look-up tables (LUTs) to map between input and output values. In other examples, the gamma adjustment circuits 130 can use circuit elements to transform input values into desired output values. The pixel-level voltage outputs 140 can be used to drive an individual pixel to emit light associated with thepixel input 110. In the example illustrated byFIG. 1 , varying (or fading) the luminance of the OLED display requires reprogramming of the gamma adjustment circuits 130. Varying the luminance or intensity of light emitted by a display is often referred to as fading the display. - In an example embodiment, an OLED driver IC can be configured to accept a single scaling input that can be used to rapidly vary the brightness (luminance) output of an OLED display. The single scaling input can be either digital or analog (e.g., PMW signal). The OLED driver IC can use the scaling input to attenuate the gamma-adjusted voltage. For example, the scaling input can be applied to attenuate the gamma-adjusted voltage after the pixel input has been mapped by a gamma adjustment portion of the OLED driver IC. The use of a scaling input to enable rapid adjustment of the luminance of an OLED display is discussed further below in reference to
FIGs. 2-6 . -
FIG. 2 is a block diagram of a section of an OLED driver IC, according to an example embodiment. In an example, acircuit 200 can include apixel input 205, aluminance scaling input 210, agamma block 220, ascaler circuit 240, and anoutput 250. In certain examples, thegamma block 220 and thescaler circuit 240 can be integrated into avoltage mapping circuit 215. In an example, thepixel input 205 can be a digital signal including eight (8) or more bits of data. In this example, thepixel input 205 is a 24-bit digital signal representing an RGB color space pixel value. In an example, theluminance scaling input 210 can be a digital or analog input that can be converted into a value between zero (0) and one (1) by thescaler circuit 240. In this example, the luminance scaling input is an 8-bit digital input. In another example, the luminance scaling input can be a PMW signal. In certain examples, theluminance scaling input 210 is programmable. In an example, theluminance scaling input 210 can be provided by a programmable processor, such as a processor within a mobile device. In this example, the programmable processor can vary theluminance scaling input 210 over a range that when converted is smaller than between zero (0) and one (1) (e.g., between .5 and 1). Varying theluminance scaling input 210 over a smaller range can result in quickly scaling the luminance uniformly across an OLED display above a threshold (i.e. minimum level of brightness). Other programmatic manipulation of theluminance scaling input 210 can produce various rapid uniform changes to the luminance across an OLED display. In some examples, the luminance scaling input is referred to as a scaling factor. - In an example, the
circuit 200 includes agamma block 220 that can be used to mappixel input 205 into a representative pixel-level analog voltage. The pixel-level analog voltage can be used to drive a pixel within an OLED display. In an example, thegamma block 220 contains a look-up table (LUT) with a fixed number of entities to map from a digital input signal to an analog output voltage level. In this example, thegamma block 220 contains a LUT with eight (8) voltage mappings (e.g., 225A - 225N). In this example, the LUT is configured to directly map digital input values of 0, 1, 32, 80, 172, 220, 254, and 255 to corresponding pixel-level analog voltage values. In this example, thegamma block 220 can interpolate digital values that fall between the directly mapped values. Interpolation ranges are depicted withinFIG. 2 byranges 230A - 230N. In an example, thegamma block 220 can use a linear interpolation to map the voltage of a value between directly mapped values. In another example, thegamma block 220 can simply round up or down to the nearest directly mapped value when interpolating inputs that fall between directly mapped values. In certain examples, thegamma block 220 can include a LUT with two-hundred and fifty five (255) directly mapped values, eliminating the need to interpolate for a given 8-bit input value. - In the example depicted by
FIG. 2 , thegamma block 220 outputs a mapped pixel-level voltage to a scaler circuit 240 (also referred to as a scaling circuit in some examples). In an example, thescaler circuit 240 can multiply the pixel-level voltage by theluminance scaling input 210 to reduce (fade) the pixel-level output voltage sent to theoutput 250. In an example, theluminance scaling input 210 can be interpreted by thescaler circuit 240 as a value between zero (0) and one (1). A value of one (1) will result in a full brightness (maximum luminance) output from the addressed pixel within the OLED display. A value of zero (0) can result in the addressed pixel being turned off (e.g., faded to zero luminance). Varying theluminance scaling input 210 between zero (0) and one (1) can result in the OLED display pixel varying between zero (0) output and full luminance. - In one example, the
scaler circuit 240 can use the following equation to scale the output voltage:
In the scaling equation, Vout_X represents the scaled pixel-level output voltage. L represents theluminance scaling input 210, L_max represents the maximum value that can be input for theluminance scaling input 210, and Gamma_LUT represents the mapped pixel-level voltage for a given pixel input, such as pixel input 205 (e.g., X(23:0), which is an 24-bit digital input in this example.). This equation allows for the scalinginput 210 to be interpreted as any value less than the maximum allowable scaling input. For example, L(7:0) is an 8-bit digital scaling input value that can vary between 0 and 254, with 254 being the maximum allowable scaling input (L_max). -
FIG. 3 is a block diagram illustrating asystem 300 for rapidly fading the luminance of an OLED display. In an example, thesystem 300 includes animage source 305, ascaling source 306, aluminance event source 308, adisplay driver circuit 310, and adisplay device 350. In one example, thedisplay driver circuit 310 includes a scalinginput 312, animage input 314, one or more gamma registers 320, amultiplier 330, anevent input 335, and anoutput 340. In this example, the scalinginput 312 can receive either a digital signal or a PWM analog signal from the scalingsource 306. The scalingsource 306 can include a general purpose processor or a dedicated ambient light control circuit. In certain examples, the general purpose processor can be programmed to provide scaling signals to the scalinginput 312 in response to programmatic events. In some example, the general purpose processor can be programmed to provide scaling signals to the scalinginput 312 in response to inputs received through a user interface displayed on the OLED display. - In the example depicted in
FIG. 3 , theimage input 314 is coupled to theimage source 305. Theimage source 305 can include dedicated or general purpose device memory accessed by a dedicated graphics processor or a general purpose device processor. In an example, theimage source 305 can provide a stream of digital data addressed to individual pixels within thedisplay device 350. - In an example, the gamma registers 320 can include one or more LUTs configured to map the digital pixel data received over the
image input 314 into pixel-level voltages used to drive the individual pixels within thedisplay device 350. In one example, the gamma registers 320 can include three LUTs (325A, 325B, and 325N), which can be used to map digital pixel data in an RGB color space (e.g., an 8-bit red value, an 8-bit green value, and an 8-bit blue value). In an example, the output of the gamma registers 320 can be operated on by themultiplier 330. Themultiplier 330 can use the scalinginput 312 to scale the output of the gamma registers 320 according to the desired luminance level (represented by the scaling input 312). - In an example, the
display driver circuit 310 can be structured to bypass the gamma registers 320 and pass theimage source 305 data received by theimage input 314 directly to themultiplier 330. In this example, themultiplier 330 can include circuitry structured to convert theimage source 305 data into pixel-level voltages as well as scaling the pixel-level voltages according to the scalinginput 312. - In certain examples, the
multiplier 330 can be activated when a luminance event is received at theevent input 335 from theluminance event source 308. Theluminance event source 308 can include a general purpose processor or a user activated switch, among other structures. In an example, a general purpose processor can include programming that triggers luminance events in response to user input or other programming, such as a low battery power indication. In these examples, themultiplier 330 applies the scalinginput 312 in response to receiving a luminance event from theevent input 335. -
FIG. 4 is a flowchart illustrating anexample method 400 for varying the illumination output of an OLED display according to a luminance scaling signal. In an example, themethod 400 includes operations for receiving a luminance scaling signal (410), receiving a first pixel input signal (420), determining a first pixel output voltage (430), scaling the first pixel output voltage (440), and outputting the scaled first pixel output voltage (450). In one example, themethod 400 can begin atoperation 410, with respect tosystem 300 ofFigure 3 , with thedisplay driver circuit 310 receiving a luminance scaling signal on the scalinginput 312. In certain examples, the scalinginput 312 is configured to receive a digital input that can be used to scale the luminance of an OLED panel. In some examples, the scalinginput 312 can be configured to receive a PWM signal that can be used by thedisplay driver circuit 310 to vary the luminance of an OLED display. - At
operation 420, themethod 400 continues with thedisplay driver circuit 310 receiving a first pixel input signal on theimage input 314. Atoperation 430, themethod 400 continues with thedisplay driver circuit 310 determining a first pixel output voltage based on the first pixel input signal. In an example, thedisplay driver circuit 310 communicates the first pixel input signal into the gamma registers 320, which can include one or more LUTs used to map the pixel input signal to an appropriate output voltage. Atoperation 440, themethod 400 continues with thedisplay driver circuit 310 scaling the first pixel output voltage. In an example, thedisplay driver circuit 310 can use themultiplier 330 to scale the first pixel output voltage according to the luminance scaling signal received on the scalinginput 312. Atoperation 450, themethod 400 can conclude with thedisplay driver circuit 310 outputting a scaled first pixel output voltage to thedisplay device 350. In an example, thedisplay driver circuit 310 can send the scaled first pixel output voltage to thedisplay device 350 via anoutput 340. -
FIG. 5 is a flowchart illustrating anexample method 500 of varying the luminance of an OLED display. As discussed above, an image source, such asimage source 305, can consist of a stream of pixel values that include red, green, and blue components (or portions). In an example, the image source can provide a 24-bit value that contains three (3) 8-bit values representing red, blue, and green portions of each pixel. Themethod 500 provides an example of scaling individual color component output voltages (e.g., in an RGB color space, output of scaled red, green, and blue output voltages). In an example, themethod 500 includes operations for receiving a luminance scaling signal (505), receiving a first pixel input signal (510), separating color components of the first pixel input signal (515), determining a red pixel component voltage (520), determining a green pixel component voltage (540), determining a blue pixel component voltage (560), scaling the red pixel component voltage (525), scaling the green pixel component voltage (545), scaling the blue pixel component voltage (565), outputting the scaled red pixel component voltage (530), outputting the scaled green pixel component voltage (550), and outputting the scaled blue pixel component voltage (570).Example method 500 can be described with respect toexample system 300 ofFigure 3 . - At
operation 505, themethod 500 begins with thedisplay driver circuit 310 receiving a luminance scaling signal over the scalinginput 312. Atoperation 510, themethod 500 continues with thedisplay driver circuit 310 receiving a first pixel input signal over theimage input 314. In this example, the first pixel input signal is a 24-bit RGB color space pixel value that includes 8-bits of data for the red, green, and blue components of a single pixel. In some examples, the first pixel input signal can include a stream of pixel data that is processed by thedisplay driver circuit 310 in a similar fashion. - At
operation 515, themethod 500 continues with thedisplay driver circuit 310 separating the color components (e.g., red, green, and blue) for further processing. The remaining operations of themethod 500 can be performed in parallel or sequentially depending upon the configuration of thedisplay driver circuit 310 and associated hardware. In certain examples, the gamma registers 320 include individual registers associated with each color component (325A, 325B, 325N). In an example, thedisplay driver circuit 310 can include multiple multipliers, such asmultiplier 330, to assist in parallel processing of a signal color pixel input signal. - At
operation 520, themethod 500 continues with thedisplay driver circuit 310 determining a red pixel component voltage. In an example, thedisplay driver circuit 310 can use the gamma registers 320 to map the red component of the first pixel input signal to the red pixel component voltage. Atoperation 525, themethod 500 continues with thedisplay driver circuit 310 scaling the red pixel component voltage according to the luminance scaling signal. In an example, thedisplay driver circuit 310 can use themultiplier 330 to scale the red pixel component voltage. Atoperation 530, themethod 500 continues with thedisplay driver circuit 310 outputting the scaled red pixel component voltage to a pixel on thedisplay device 350. -
Operations 540 through 570 ofmethod 500 mirror operations 520-530 for the green and blue components of the first pixel input signal. Themethod 500 concludes by outputting three discrete voltage signals representing the red, green, and blue components of the first pixel input signal to thedisplay device 350. In an example, the three voltage signals are sent to thedisplay device 350 simultaneously. -
FIG. 6 is a flowchart illustrating anexample method 600 of varying the luminance of an OLED display based on receiving a triggering event, according to an example embodiment. Themethod 600 includes operations for receiving an image input signal (610), determining per pixel output voltages for the image input signal (620), determining whether a scaling event has been received (630), reading a luminance scaling signal (640), scaling the per pixel output voltages (650), and outputting the per pixel output voltages (660).Example method 500 can be described with respect toexample system 300 ofFigure 3 . - The
method 600 begins atoperation 610 with thedisplay driver circuit 310 receiving an image input signal over theimage input 314. In an example, the image input signal is received from animage source 305. Atoperation 620 themethod 600 continues with thedisplay driver circuit 310 determining per pixel output voltages for the image input signal received byimage input 314. In an example, thedisplay driver circuit 310 can use the gamma registers 320 to map each pixel within the image input signal to an associated pixel output voltage. In certain examples, the image input signal can represent a still image to be displayed on the OLED display. In some examples, the image input signal can represent a dynamic image (e.g., video feed or graphical user-interface) sampled at a certain frequency, such as 60 Hz. - At
operation 630, themethod 600 continues with thedisplay driver circuit 310 determining whether a scaling event has been received overevent input 335. In an example, the scaling event can be used by thedisplay driver circuit 310 to enable or disable scaling of the per pixel output voltages. Scaling of the per pixel output voltages can result in rapidly fading the luminance of the OLED display. If no scaling event has been received by thedisplay driver circuit 310, themethod 600 concludes atoperation 660 with thedisplay driver circuit 310 outputting the non-scaled per pixel output voltages over theoutput 340 to thedisplay device 350. - If a scaling event has been received the
method 600 continues atoperation 640 with thedisplay driver circuit 310 reading the luminance scaling signal received on the scalinginput 312. At 650, themethod 600 continues with thedisplay driver circuit 310 using the scaling signal to scale the per pixel output voltages. In some examples, the scaling can be done incrementally over multiple scans of the image input signal to create a smooth effect on the OLED display. For example, when a scaling event is received thedisplay driver circuit 310 can incrementally scale the per pixel output voltages over a certain number of scans of the 60 Hz input image signal, such as over 30 scans. This example would result in the luminance of the display fading smoothly over a half second period of time. At 660, themethod 600 concludes with the display driver circuit outputting the scaled per pixel output voltages to thedisplay device 350 viaoutput 340. -
FIG. 7 is a block diagram depicting amobile device 700 according to an example embodiment. In an example, themobile device 700 includes aprocessing unit 702,memory 704,removable storage 712, non-removable storage 714,display 722, anddisplay driver 728. Theprocessing unit 702 may include one or more processing units or may include one or more multiple-core processing units.Memory 704 may includevolatile memory 706 andnon-volatile memory 708.Mobile device 700 may include a variety of device-readable media, such asvolatile memory 706 andnon-volatile memory 708,removable storage 712 and non-removable storage 714. The storage may include random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) and electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, or any other medium capable of storing machine-readable instructions and data that may be present in a mobile electronic device.Mobile device 700 may includeinput 716,output 718, and acommunication connection device 720. - The
mobile device 700 typically operates in a networked environment using thecommunication connection device 720 to connect to one or more networks, such as a wireless telephone network. Through thecommunication connection device 720, themobile device 700 may connect to one or more remote computers. The remote computer may include a personal computer (PC), server, router, network PC, a peer device, or other common network input, or the like. Thecommunication connection device 720 may connect to various network types that may include a wireless telephone network, a Local Area Network (LAN), a Wide Area Network (WAN), the Internet, a proprietary subscription-based network, or other networks. Themobile device 700 also may include wireless telephone capabilities to provide voice telephone service via a wireless telephone network. - Machine-readable instructions stored on a machine-readable medium are executable by the
processing unit 702 of themobile device 700. Thememory 704,removable storage 712, and non-removable storage 714 are examples of articles including a machine-readable medium. For example, a program with instructions that may be stored inmemory 704 and when executed by theprocessing unit 702 can cause themobile device 700 to perform one or more of the methods described herein. Other programs may also be stored on a machine-readable medium, such as a browser application providing web browsing functionality for themobile device 700. - Method examples described herein can be machine or computer-implemented, at least in part. Some examples can include a computer-readable medium or machine-readable medium encoded with instructions operable to configure an electronic device to perform methods as described in the above examples. An implementation of such methods can include code, such as microcode, assembly language code, a higher-level language code, or the like. Such code can include computer-readable instructions for performing various methods. The code may form portions of computer program products. Further, the code may be stored on one or more volatile or non-volatile computer-readable media during execution or at other times. These computer-readable media may include, but are not limited to, hard disks, removable magnetic disks, removable optical disks (e.g., compact disks and digital video disks), magnetic cassettes, memory cards or sticks, random access memories (RAMs), read-only memories (ROMs), and the like.
- The above detailed description includes references to the accompanying drawings, which form a part of the detailed description. The drawings show, by way of illustration, specific embodiments in which the subject matter can be practiced. These embodiments are also referred to herein as "examples." Such examples can include elements in addition to those shown and described. However, the present inventors also contemplate examples in which only those elements shown and described are provided. It will be readily understood to those skilled in the art that various other changes in the details, material, and arrangements of the parts and method stages which have been described and illustrated herein may be made without departing from the principles of the inventive subject matter.
- In this document, the terms "a" or "an" are used, as is common in patent documents, to include one or more than one, independent of any other instances or usages of "at least one" or "one or more." In this document, the term "or" is used to refer to a nonexclusive or, such that "A or B" includes "A but not B," "B but not A," and "A and B," unless otherwise indicated. In the appended claims, the terms "including" and "in which" are used as the plain-English equivalents of the respective terms "comprising" and "wherein." Also, in the following claims, the terms "including" and "comprising" are open-ended, that is, a system, device, article, or process that includes elements in addition to those listed after such a term in a claim are still deemed to fall within the scope of that claim. Moreover, in the following claims, the terms "first," "second," and "third," etc. are used merely as labels, and are not intended to impose numerical requirements on their objects.
- The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more features thereof) may be used in combination with each other. Other embodiments can be used, such as by one of ordinary skill in the art upon studying the above description. The Abstract is provided to comply with 37 C.F.R. §1.72(b), to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Also, in the above Detailed Description, various features may be grouped together to streamline the disclosure. This should not be interpreted as intending that an unclaimed disclosed feature is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment.
Claims (15)
- An organic light emitting diode (OLED) display driver circuit (310) comprising:a first input (312) to receive a scaling factor;a second input (314) to receive an image input signal, the image input signal including a digital representation of a desired output for a pixel within an OLED display; anda scaling circuit (330) to multiply a pixel-level output voltage, corresponding to the image input signal, by the scaling factor.
- The OLED display driver circuit (310) of claim 1, wherein the first input is structured to receive a signal representing a value between 1 and 0.
- The OLED display driver circuit (310) of any one of claims 1 through 2, wherein the first input is structured to receive a pulse-width modulated signal representing a value between 1 and 0.
- The OLED display driver circuit (310) of any one of claims 1 through 3, wherein the second input is structured to receive a signal representing a gray-scale pixel value.
- The OLED display driver circuit (310) of any one of claims 1 through 4, further including a register coupled to the second input and containing a look-up table, the look-up table configured to map the digital representation of a desired output for the pixel to a pixel-level output voltage.
- The OLED display driver circuit (310) of claim 5, wherein the second input is structured to receive an image input signal representing a color pixel value, the image input signal including a first component representing red, a second component representing green, and a third component representing blue.
- The OLED display driver circuit (310) of claim 6, wherein the register contains a look-up table associated with each of the first component, the second component, and the third component of the image input signal representing the color pixel value.
- The OLED display driver circuit (310) of any one of claims 5 through 7, wherein the register is structured to map:an 8-bit value representing a red portion of the digital representation of the desired output for the first pixel to a first pixel-level output voltage;an 8-bit value representing a green portion of the digital representation of the desired output for the first pixel to a second pixel-level output voltage; andan 8-bit value representing a blue portion of the digital representation of the desired output for the first pixel to a third pixel-level output voltage.
- The OLED display driver circuit (310) of claim 8, wherein the scaling circuit is to scale the first, second, and third pixel-level output voltages using the scaling factor.
- A method comprising:receiving a luminance scaling signal (410);receiving a pixel input signal (420), the pixel input signal including a digital representation of a desired output for a pixel within a display device;determining a pixel output voltage from the pixel input signal (430);scaling the pixel output voltage (440) using the luminance scaling signal to produce a scaled pixel output voltage; andoutputting the scaled pixel output voltage (450).
- The method of claim 10, wherein the determining the pixel output voltage from the pixel input signal includes using a look-up table, the look-up table including gamma values that map digital pixel input signals to pixel-level output voltages.
- The method of any one of claims 10 through 11, wherein receiving the luminance scaling signal includes receiving a signal representing a value between 0 and 1.
- The method of any one of claims 10 through 12, wherein receiving the luminance scaling signal includes receiving a pulse-width modulated signal representing a value between 0 and 1.
- The method of any one of claims 10 through 13, wherein receiving the pixel input signal includes receiving an image input signal representing a color pixel value, the image input signal including a first component addressing a red portion of a pixel, a second component addressing a green portion of the pixel, and a third component addressing a blue portion of the pixel.
- An apparatus comprising:a processor (702) coupled to a memory circuit (704);an organic light emitting diode (OLED) display (350) including a plurality of individually addressable pixels;an OLED display driver circuit (310) coupled to the OLED display (350), the OLED display driver circuit including:a first input (312) to receive a scaling factor from the processor;a second input (314) to receive an image input signal from the processor, the image input signal including image data to drive the plurality of individually addressable pixels; anda scaler circuit (330) coupled to the first input (312) and the second input (314), the scaler circuit structured to multiply pixel-level output voltages associated with the plurality of individually addressable pixels in the image input signal by the scaling factor.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11156106.4A EP2492903B1 (en) | 2011-02-25 | 2011-02-25 | Method and system to quickly fade the luminance of an OLED display |
CA2769377A CA2769377C (en) | 2011-02-25 | 2012-02-24 | Method and system to quickly fade the luminance of an oled display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11156106.4A EP2492903B1 (en) | 2011-02-25 | 2011-02-25 | Method and system to quickly fade the luminance of an OLED display |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2492903A1 EP2492903A1 (en) | 2012-08-29 |
EP2492903A9 true EP2492903A9 (en) | 2013-03-13 |
EP2492903B1 EP2492903B1 (en) | 2020-04-08 |
Family
ID=43828407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11156106.4A Active EP2492903B1 (en) | 2011-02-25 | 2011-02-25 | Method and system to quickly fade the luminance of an OLED display |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2492903B1 (en) |
CA (1) | CA2769377C (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003227247A1 (en) * | 2002-03-27 | 2003-10-08 | Hiroyuki Goya | Display device, mobile terminal, and luminance control method in mobile terminal |
US20060055828A1 (en) * | 2002-12-13 | 2006-03-16 | Koninklijke Philips Electronics N.V. | Automatic gamma correction for a matrix display |
US7564438B2 (en) * | 2006-03-24 | 2009-07-21 | Marketech International Corp. | Method to automatically regulate brightness of liquid crystal displays |
KR100748319B1 (en) * | 2006-03-29 | 2007-08-09 | 삼성에스디아이 주식회사 | Light emitting display device and driving method for same |
KR100844775B1 (en) * | 2007-02-23 | 2008-07-07 | 삼성에스디아이 주식회사 | Organic light emitting display device |
JP5321032B2 (en) * | 2008-12-11 | 2013-10-23 | ソニー株式会社 | Display device, brightness adjusting device, brightness adjusting method and program |
-
2011
- 2011-02-25 EP EP11156106.4A patent/EP2492903B1/en active Active
-
2012
- 2012-02-24 CA CA2769377A patent/CA2769377C/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2492903A1 (en) | 2012-08-29 |
EP2492903B1 (en) | 2020-04-08 |
CA2769377A1 (en) | 2012-08-25 |
CA2769377C (en) | 2017-07-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9275571B2 (en) | Method and system to quickly fade the luminance of an OLED display | |
US11132959B2 (en) | Electronic device and control method thereof | |
KR101492718B1 (en) | Selective dimming to reduce power of a light emitting display device | |
US9542908B2 (en) | Character highlighting control apparatus, display apparatus, highlighting display control method, and computer program | |
US8723784B2 (en) | Brightness control apparatus, display apparatus and lighting apparatus | |
US7456852B2 (en) | Display apparatus, mobile terminal and luminance control method in the mobile terminal | |
US11468809B2 (en) | Low-flicker variable refresh rate display | |
EP2339568B1 (en) | Data display method and device | |
KR20110032245A (en) | Appratus and method for controlling brightness of organic light emitting diode display | |
US11107403B2 (en) | Current limiting circuit, display device, and current limiting method | |
JP2007322945A (en) | Display control device, display device, and display control method | |
US8933866B2 (en) | Active matrix pixel brightness control | |
KR101073006B1 (en) | Display device and method for controling brightness of images in display device | |
US20190026872A1 (en) | Driving circuit of processing high dynamic range image signal and display device having the same | |
US10431165B2 (en) | Display apparatus and method of driving the same | |
EP2492903B1 (en) | Method and system to quickly fade the luminance of an OLED display | |
US20220358869A1 (en) | Brightness conversion data blocks | |
US9837047B2 (en) | Flat panel display having dynamic adjustment mechanism and image display method thereof | |
CA2824661A1 (en) | Active matrix pixel brightness control | |
JP7305179B2 (en) | CURRENT LIMITING CIRCUIT, DISPLAY DEVICE AND CURRENT LIMITING METHOD | |
JP2021060557A (en) | Current limit circuit, display device, and current limit method | |
KR101947804B1 (en) | Image quality processor, display device including the same, and image quality processing method | |
KR20210106125A (en) | Display apparaus and controlling method of display apparatus | |
KR20100077819A (en) | Liquid crystal display device and method of driving the same | |
JP2006145718A (en) | Driving circuit and method for electrooptical device, and electrooptical device and electronic equipment equipped with same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20110225 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BLACKBERRY LIMITED |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BLACKBERRY LIMITED |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20170322 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20191115 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BLACKBERRY LIMITED |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1255431 Country of ref document: AT Kind code of ref document: T Effective date: 20200415 Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602011066093 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20200408 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200709 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200817 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200708 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200808 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1255431 Country of ref document: AT Kind code of ref document: T Effective date: 20200408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200708 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602011066093 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
26N | No opposition filed |
Effective date: 20210112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20210228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210228 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210225 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210225 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20110225 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240228 Year of fee payment: 14 Ref country code: GB Payment date: 20240220 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602011066093 Country of ref document: DE Owner name: MALIKIE INNOVATIONS LTD., IE Free format text: FORMER OWNER: BLACKBERRY LIMITED, WATERLOO, ONTARIO, CA |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240226 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200408 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20240620 AND 20240627 |