# US 2014/0198088 A1 · Method and driving apparatus for outputting driving signal to drive electro-phoretic display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198088 A1 - Document ID: US20140198088A1 - Status: Published application - Kind: A1 - Application number: 13/743,344 - Filed: 2013-01-17 - Published: 2014-07-17 - Earliest claimed: 2013-01-17 - Assignees: SiPix Technology Inc. - Applicants: Sipix Technology Inc. - Inventors: Wei-Min Sun; Chi-Mao Hung; Chih-Yuan Hsu; Yan-Liang Wu; Pei-Lin Tien - Web page: https://patentgrep.com/patent/US20140198088A1 ## CPC - G09G 3/344: {based on particles moving in a fluid or in a gas, e.g. electrophoretic devices (electrophoretic devices per se G02F1/167)} - G09G 2310/0254: Control of polarity reversal in general, other than for liquid crystal displays - G09G 2320/041: Temperature compensation - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract The present invention provides a driving apparatus, the driving apparatus is used for outputting a driving signal to drive an electro-phoretic display, and the driving apparatus includes a driving signal generator, a temperature sensor, and a selector. The driving signal generator generates a plurality of periodic alternative current signals and a plurality of direct current signals. The temperature sensor generates a temperature parameter by sensing an environment temperature. The selector is coupled to the driving signal generator and the temperature sensor. The selector selects one of the periodic alternative current signals or one of the direct current signals as the driving signal according to the temperature parameter. ## Claims ### Claim 1 A driving apparatus for outputting a driving signal to drive an electro-phoretic display, comprising: a driving signal generator, for generating a plurality of periodic alternative current signals and a plurality of direct current signals; a temperature sensor, generating a temperature parameter by sensing an environment temperature; and a selector, coupled to the driving signal generator and the temperature sensor, the selector selecting one of the periodic alternative current signals or one of the direct current signals as the driving signal according to the temperature parameter. ### Claim 2 (depends on 1) The driving apparatus according to claim 1, wherein when the temperature parameter is not larger than a preset threshold value, the selector selects one of the periodic alternative current signals as the driving signal. ### Claim 3 (depends on 2) The driving apparatus according to claim 2, wherein frequencies of the periodic alternative current signals are different. ### Claim 4 (depends on 2) The driving apparatus according to claim 2, wherein, each of the periodic alternative current signals is corresponded to one of a plurality of first temperature intervals by a first relationship, and the selector selects one of the periodic alternative current signals as the driving signal according to the temperature parameter and the first relationship. ### Claim 5 (depends on 1) The driving apparatus according to claim 1, wherein when the temperature parameter is larger than the preset threshold value, the selector selects one of the direct current signals as the driving signal. ### Claim 6 (depends on 5) The driving apparatus according to claim 5, wherein voltage levels of the direct current signals are different. ### Claim 7 (depends on 5) The driving apparatus according to claim 5, wherein each of the direct current signals is corresponded to one of a plurality of second temperature intervals by a second relationship, and the selector selects one of the direct current signals as the driving signal according to the temperature parameter and the second relationship. ### Claim 8 A method for generating a driving signal to drive an electro-phoretic display, comprising: generating a plurality of periodic alternative current signals and a plurality of direct current signals; generating a temperature parameter by sensing an environment temperature; and selecting one of the periodic alternative current signals or one of the direct current signals as the driving signal according to the temperature parameter. ### Claim 9 (depends on 8) The method according to claim 8, wherein the step of selecting one of the periodic alternative current signals or one of the direct current signals as the driving signal according to the temperature parameter comprises: selecting one of the periodic alternative current signals as the driving signal when the temperature parameter is larger than a preset threshold value. ### Claim 10 (depends on 9) The method according to claim 9, wherein the frequencies of the periodic alternative current signals are different. ### Claim 11 (depends on 9) The method according to claim 9, wherein, each of the periodic alternative current signals is corresponded to one of a plurality of first temperature intervals by a first relationship, and the step of selecting one of the periodic alternative current signals as the driving signal comprises: selecting one of the periodic alternative current signals as the driving signal according to the temperature parameter and the first relationship. ### Claim 12 (depends on 8) The method according to claim 8, wherein the step of selecting one of the periodic alternative current signals or one of the direct current signals as the driving signal according to the temperature parameter comprises: selecting one of the direct current signals as the output signal when the temperature parameter is not larger than the preset threshold value. ### Claim 13 (depends on 12) The method according to claim 12, the voltage levels of the direct current signals are different. ### Claim 14 (depends on 12) The method according to claim 12, wherein each of the direct current signals is corresponded to one of a plurality of second temperature intervals by a second relationship, and the step of selecting one of the direct current signals as the driving signal comprises: selecting one of the direct current signals as the driving signal according to the temperature parameter and the second relationship.